332354 + Interview Questions in Secondary School in Math

1.	Q3. Is y > 5 linear equation ? Give reason.
Answer» ANSWER: y>5 is not a linear EQUATION it is not an equation also because there is no equality SIGN = . So this is not a linear equation... Mark as BRAINLIEST

1.

Q3. Is y > 5 linear equation ? Give reason.

Answer»

y>5 is not a linear EQUATION it is not an equation also because there is no equality SIGN = . So this is not a linear equation...

Mark as BRAINLIEST

Discussion

2.	Verify this.. very important question
Answer» ANSWER: LHS=RHS Step-by-step EXPLANATION: X(y-z) =(x×y)-(x×z) (4/5)(-7/4-3)=(4/5×-7/4)-(4/5×3) (4/5)(-19/4) =(-7/5)-12/5 -19/5 =-19/5 hence PROVED

2.

Verify this.. very important question

Answer»

ANSWER:

LHS=RHS

Step-by-step EXPLANATION:

X(y-z) =(x×y)-(x×z)

(4/5)(-7/4-3)=(4/5×-7/4)-(4/5×3)

(4/5)(-19/4) =(-7/5)-12/5

-19/5 =-19/5

hence PROVED

Discussion

3.	60-65 4 65-75 5 75-80 6 80-85 8 mean
Answer» Answer:Converting the given data into frequency distribution table Maths marks No. of students (f) Cf 60-65 8 8 65-70 12 20 70-75 14 34 75-80 8 42 80-85 5 47 85-90 6 53 90-95 4 57 Σf=57 Here, N=57 Hence the median class = 2 N = 2 57 =28.5 In the above table 70-75 is the median class and the respective cf is 20 (nearest to the value of 28.5) Acc to ques, l 1 =70 (lower limit of median class) CF=20 (C= cumulative frequency preceding the median class) i=l 2 −l 1 =5 (WIDTH of class INTERVAL of median class) f = 14 (frequency of median class) Median=l 1 + f 2 N −C ×i=70+ 14 28.5−20 ×5 Median= 73.05 (A) Step-by-step EXPLANATION:

3.

60-65 4 65-75 5 75-80 6 80-85 8 mean

Answer»

Answer:Converting the given data into frequency distribution table

Maths marks No. of students

(f) Cf

60-65 8 8

65-70 12 20

70-75 14 34

75-80 8 42

80-85 5 47

85-90 6 53

90-95 4 57

Σf=57

Here, N=57

Hence the median class =

2

N

=

2

57

=28.5

In the above table 70-75 is the median class and the respective cf is 20 (nearest to the value of 28.5)

Acc to ques, l

1

=70 (lower limit of median class)

CF=20 (C= cumulative frequency preceding the median class)

i=l

2

−l

1

=5 (WIDTH of class INTERVAL of median class)

f = 14 (frequency of median class)

Median=l

1

+

f

2

N

−C

×i=70+

14

28.5−20

×5

Median= 73.05 (A)

Step-by-step EXPLANATION:

Discussion

4.	Mrs. Kaushik has a square plot with side 30 metres. She wants to construct a houseof length 25 m and width 20 m in the middle of the plot. A garden is developed aroundthe house. Find the area of garden.
Answer» Answer: SIDE of square plot = 25 so area of square plot = 25×25=625square metere length and BREADTH of house is 20 and 15 m respectively so area of house = 20×15=300square meter *area* of *GARDEN=area* of *square* *plot* - *area* of *house* 625-300=325 since cost of devoloping garden=₹55 TOAL cost of devoloping garden area of 325sqm=325×55=17,875

4.

Mrs. Kaushik has a square plot with side 30 metres. She wants to construct a houseof length 25 m and width 20 m in the middle of the plot. A garden is developed aroundthe house. Find the area of garden.

Answer»

Answer:

SIDE of square plot = 25

so area of square plot = 25×25=625square metere

length and BREADTH of house is 20 and 15 m respectively

so area of house = 20×15=300square meter

area of GARDEN=area of square plot - area of house

625-300=325

since cost of devoloping garden=₹55

TOAL cost of devoloping garden area of 325sqm=325×55=17,875

Discussion

5.	What is sets in maths tell short meaning
Answer» Answer: A SET in mathematics is a collection of well DEFINED and distinct objects, considered as an object in its own right. ... A set is a GATHERING together into a whole of definite, distinct objects of our perception [Anschauung] and of our thought – which are CALLED elements of the set.

5.

What is sets in maths tell short meaning

Answer»

Answer:

A SET in mathematics is a collection of well DEFINED and distinct objects, considered as an object in its own right. ... A set is a GATHERING together into a whole of definite, distinct objects of our perception [Anschauung] and of our thought – which are CALLED elements of the set.

Discussion

6.	14. the value of sin60. cos30 + 2 pointssin30 cOS 60012
Answer» ANSWER: jdkndnksiivn tj️❗

6.

14. the value of sin60. cos30 + 2 pointssin30 cOS 60012

Answer»

ANSWER:

jdkndnksiivn tj️❗

Discussion

7.	Find the product of (x + 3) and (x + 7)
Answer» To FIND :- × (x + 3) and (x + 7) $\huge\bigstar\underline\mathfrak{Answer}$ $(x + 3)(x + 7)$ ${x}^{2} + 7x + 3x + 21$ ${x}^{2} + 10x + 21$ $So your answer is \: {x}^{2} + 10x + 21$ Hope it HELPS U✌️✌️✌️✌️...

7.

Find the product of (x + 3) and (x + 7)

Answer»

To FIND :-

× (x + 3) and (x + 7)

$\huge\bigstar\underline\mathfrak{Answer}$

$(x + 3)(x + 7)$

${x}^{2} + 7x + 3x + 21$

${x}^{2} + 10x + 21$

$So your answer is \: {x}^{2} + 10x + 21$

Hope it HELPS U✌️✌️✌️✌️...

Discussion

8.	If HCF (143, 440) = 11, then what is the LCM (143, 440) ?
Answer» Answer: 11× LCM= 143×440 lcm= 62920/11 lcm= 5720

8.

If HCF (143, 440) = 11, then what is the LCM (143, 440) ?

Answer»

Answer:

11× LCM= 143×440

lcm= 62920/11

lcm= 5720

Discussion

9.	: Find the zeroes of the polynomial p(x)=x2– 3x
Answer» Answer: 0 Step-by-step EXPLANATION: PLEASE MARK it as BRAINLIEST

9.

: Find the zeroes of the polynomial p(x)=x2– 3x

Answer»

Answer:

0

Step-by-step EXPLANATION:

PLEASE MARK it as BRAINLIEST

Discussion

10.	Jue. 10:- Simplify:- 131/2
Answer» ANSWER: -131/2=-65.5..........

10.

Jue. 10:- Simplify:- 131/2

Answer»

ANSWER:

-131/2=-65.5..........

Discussion

11.	Solve linear equation x+32 =2x
Answer» Answer: So simple ... 2x-X= 32 <U>=>X = 32. Step-by-step explanation: HOPE it helps u ☺❤ follow me GENIUS

11.

Solve linear equation x+32 =2x

Answer»

Answer:

So simple ...

2x-X= 32

<U>=>X = 32.

Step-by-step explanation:

HOPE it helps u ☺❤

follow me GENIUS

Discussion

12.	Identify the Variable and constant312177a) y - 6 (b) 2 + 6Express the following in Percentage and arrange in ascending order(c) 9 - 189(c) 0.2 0.9(d) 1.21$ 7 Section - C (30 Marks)greata Them b.2.(b) 0.4 0.8 04.0.813(b) 27.31525 1045Let's Multiplya) 0.6 0.5 (b) 0.2 x 0.1Convert the following decimal number into percentagea) 0.6(b) 0.02 (C) 0.576227Express the following expression in languagea) y+6(b) asbArrange the following in descending ordera) 0.5x0.3, 0.5, 0.3subtrach3Find the value in decimal numbera) 0.627 - 3(b) 0.343 +79a) 12
Answer» ANSWER: akshdjdkkdjdjdkzlxjjx

12.

Identify the Variable and constant312177a) y - 6 (b) 2 + 6Express the following in Percentage and arrange in ascending order(c) 9 - 189(c) 0.2 0.9(d) 1.21$ 7 Section - C (30 Marks)greata Them b.2.(b) 0.4 0.8 04.0.813(b) 27.31525 1045Let's Multiplya) 0.6 0.5 (b) 0.2 x 0.1Convert the following decimal number into percentagea) 0.6(b) 0.02 (C) 0.576227Express the following expression in languagea) y+6(b) asbArrange the following in descending ordera) 0.5x0.3, 0.5, 0.3subtrach3Find the value in decimal numbera) 0.627 - 3(b) 0.343 +79a) 12

Answer»

ANSWER:

akshdjdkkdjdjdkzlxjjx

Discussion

13.	Sin² 0 - 1 Sin O=0 02
Answer» ANSWER: - 1 Step-by-step EXPLANATION: PLEASE MARK me as BRAINLIEST

13.

Sin² 0 - 1 Sin O=0 02

Answer»

ANSWER:

- 1

Step-by-step EXPLANATION:

PLEASE MARK me as BRAINLIEST

Discussion

14.	2. Find the product of ( 3 - 2x) (3 + 2x) using suitable identity.
Answer» Answer: Answer:(3-2X) (3+2x) Answer:(3-2x) (3+2x) => (3) ^2- (2x)^2 {by FORMULA a^2-b^2} Answer:(3-2x) (3+2x) => (3) ^2- (2x)^2 {by formula a^2-b^2}=> 9-4x^2 (answer) Answer:(3-2x) (3+2x) => (3) ^2- (2x)^2 {by formula a^2-b^2}=> 9-4x^2 (answer) Step-by-step explanation:

14.

2. Find the product of ( 3 - 2x) (3 + 2x) using suitable identity.

Answer»

Answer:

Answer:(3-2X) (3+2x)

Answer:(3-2x) (3+2x) => (3) ^2- (2x)^2 {by FORMULA a^2-b^2}

Answer:(3-2x) (3+2x) => (3) ^2- (2x)^2 {by formula a^2-b^2}=> 9-4x^2 (answer)

Answer:(3-2x) (3+2x) => (3) ^2- (2x)^2 {by formula a^2-b^2}=> 9-4x^2 (answer) Step-by-step explanation:

Discussion

15.	Find the probability of getting a head when a coin is tossed once . Also find the probability of getting.
Answer» Answer: The PROBABILITY of GETTING head when a coin is TOSSED once in 1/2 Step-by-step EXPLANATION:

15.

Find the probability of getting a head when a coin is tossed once . Also find the probability of getting.

Answer»

Answer:

The PROBABILITY of GETTING head when a coin is TOSSED once in 1/2

Step-by-step EXPLANATION:

Discussion

16.	9. Find the value of a so that point (3.a ) lies on the line represented by 2x-3y=5.
Answer» ANSWER: VALUE of a=-1/3 Step-by-step EXPLANATION: (2×2)-(3×a)=5 3×a = 4-5 a= -1/3

16.

9. Find the value of a so that point (3.a ) lies on the line represented by 2x-3y=5.

Answer»

ANSWER:

VALUE of a=-1/3

Step-by-step EXPLANATION:

(2×2)-(3×a)=5

3×a = 4-5

a= -1/3

Discussion

17.	29/8 terminated without using decimal
Answer» Not possible Mark me as BRAIN LIST

Discussion

18.	5 pencils ad 7 pens together cost 50 wherea 7 pencils and 5 pens together cost 46,cos of one pencil and one pencil
Answer» Answer: Let pencil be x and let pen be y 5x+7y=50 7x+5y=46 multiply first equation by 7 35x+49y = 350 multiply second equation by 5 35x+25y=230 solving them we get 24Y=120 which gives y is 5 rupees substituting in second equation we get x is 3 rupees Step-by-step explanation: 5 pencils &7 pens together cost Rs.50 whereas 7 pencils & 5 pens together costs Rs. 46.find the cost of ONE pen & one pencil Solution: let cost(in RS) of one pencil = x and cost (in RS) of one pen = y Therefore , according to question 5x+7y = 50 ........ (1) 7x + 5y = 46 .........(2) Multiply equation 1 by 7 and equation by 5 we get 7(5x+7y)= 750 35x +49y = 350 .......(3) and 5(7x +5y) = 546 35x +25y = 230 ....... (4) Subtract equation 4 from equation 3 , we get 35x + 49y - 35x - 25y = 350 -230 49y -25y = 120 24y = 120 y = 120 /24 y= 5 Substitute y=5 in equation 1 , we get 5x + 7*5 =50 5x+35 =50 5x = 50 - 35 5x =15 x= 15/5 x=3 Hence Cost of One Pencil = x =3 Cost of One Pen =y =5 Hope this Helps You!! PLEASE Rate My Solution BEST if U feel So!!!!

18.

5 pencils ad 7 pens together cost 50 wherea 7 pencils and 5 pens together cost 46,cos of one pencil and one pencil

Answer»

Answer:

Let pencil be x and let pen be y

5x+7y=50

7x+5y=46

multiply first equation by 7

35x+49y = 350

multiply second equation by 5

35x+25y=230

solving them we get 24Y=120 which gives y is 5 rupees

substituting in second equation we get x is 3 rupees

Step-by-step explanation:

5 pencils &7 pens together cost Rs.50 whereas 7 pencils & 5 pens together costs Rs. 46.find the cost of ONE pen & one pencil

Solution:

let cost(in RS) of one pencil = x

and cost (in RS) of one pen = y

Therefore , according to question

5x+7y = 50 ........ (1)

7x + 5y = 46 .........(2)

Multiply equation 1 by 7 and equation by 5 we get

7(5x+7y)= 7*50

35x +49y = 350 .......(3)

and

5(7x +5y) = 5*46

35x +25y = 230 ....... (4)

Subtract equation 4 from equation 3 , we get

35x + 49y - 35x - 25y = 350 -230

49y -25y = 120

24y = 120

y = 120 /24

y= 5

Substitute y=5 in equation 1 , we get

5x + 7*5 =50

5x+35 =50

5x = 50 - 35

5x =15

x= 15/5

x=3

Hence Cost of One Pencil = x =3

Cost of One Pen =y =5

Hope this Helps You!!

PLEASE Rate My Solution BEST if U feel So!!!!

Discussion

19.	Example for distributive property
Answer» ANSWER: .............................................

19.

Example for distributive property

Answer»

ANSWER:

.............................................

Discussion

20.	In the given figures value of x is
Answer» Answer: 260............ANS. HAI

20.

In the given figures value of x is

Answer»

Answer:

260............ANS. HAI

Discussion

21.	Circles having same centre and different radius are called _________ circle.
Answer» ANSWER: Concentric Circles: Two or more circlesthat have the same center, but different radii. Congruent Circles: Two or morecircles with the same radius, butdifferent centers.Jul 18, 2012 Radius: The distance from the center of the circle to its outer rim. Diameter: A chord that passes through the center of the circle. Secant: A LINE that INTERSECTS a circle in two points. Tangent: A line that intersects a circle in exactly one point. Step-by-step EXPLANATION: PLEASE mark me as the brainliest

21.

Circles having same centre and different radius are called _________ circle.

Answer»

ANSWER:

Concentric Circles: Two or more circlesthat have the same center, but different radii. Congruent Circles: Two or morecircles with the same radius, butdifferent centers.Jul 18, 2012

Radius: The distance from the center of the circle to its outer rim.

Diameter: A chord that passes through the center of the circle.

Secant: A LINE that INTERSECTS a circle in two points.

Tangent: A line that intersects a circle in exactly one point.

Step-by-step EXPLANATION:

PLEASE mark me as the brainliest

Discussion

22.	Find the nature of the roots of the equation x²+7x+10 = 0
Answer» ANSWER: Step-by-step EXPLANATION: $x^{2} +7x+10 = (x+2)(x+5) = 0$ So the ROOTS are x=-2 and x=-5

22.

Find the nature of the roots of the equation x²+7x+10 = 0

Answer»

ANSWER:

Step-by-step EXPLANATION:

$x^{2} +7x+10 = (x+2)(x+5) = 0$

So the ROOTS are x=-2 and x=-5

Discussion

23.	The symbol % is the sign for ratio. true or false
Answer» ANSWER: false Step-by-step EXPLANATION: RATIO SYMBOL is:

23.

The symbol % is the sign for ratio. true or false

Answer»

ANSWER:

false

Step-by-step EXPLANATION:

RATIO SYMBOL is:

Discussion

24.	Iftwosidesofarightangletriangleare3cmand4cmthenfindhypotenuseofsame tringle
Answer» Step-by-step EXPLANATION: MARK me as a BRAINLIEST

24.

Iftwosidesofarightangletriangleare3cmand4cmthenfindhypotenuseofsame tringle

Answer»

Step-by-step EXPLANATION:

MARK me as a BRAINLIEST

Discussion

25.	Find the difference between 4xy and xy.
Answer» ANSWER: the DIFFERENCE is 4xy-xy 3xy please MARK me as BRAINLIST

25.

Find the difference between 4xy and xy.

Answer»

ANSWER:

the DIFFERENCE is

4xy-xy

3xy

please MARK me as BRAINLIST

Discussion

26.	Find the reaminder using x^3-2x^2+3x-4 is divide by x+4
Answer» Answer: 4342 Step-by-step EXPLANATION: PLEASE FOLLOW me and MAKE me BRILLIANT

26.

Find the reaminder using x^3-2x^2+3x-4 is divide by x+4

Answer»

Answer:

4342

Step-by-step EXPLANATION:

PLEASE FOLLOW me and MAKE me BRILLIANT

Discussion

27.	0.5 ka p/q Roop likhiye
Answer» ANSWER: 5/10 is the answer for this

27.

0.5 ka p/q Roop likhiye

Answer»

ANSWER:

5/10 is the answer for this

Discussion

28.	Find the zeroes of the qudratic polynomia :6x²-x-2
Answer» Step-by-step explanation: 6x² - X - 2 = 0 6x² + 4X - 3x - 2 = 0 2x ( 3x + 2 ) - 1 ( 3x - 2 ) = 0 ( 2x - 1 ) + ( 3x + 2 ) = 0 Two ZEROES :- $\red{~▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼~}$ → 2x - 1 = 0 → 2x = 1 → x = ½ $\blue{~▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△~}$ → 3x + 2 = 0 → 3x = -2 → x = $\frac{-2}{3}$ $\red{~▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△~}$ $\alpha$ = ½ and $\beta$ = $\frac{-2}{3}$ We know that $\frac{ \alpha }{ \beta } + \frac{ \beta }{ \alpha }$ $\frac{ \frac{1}{2} }{ \frac{ - 2}{3} } + \frac{ \frac{ - 2}{3} }{ \frac{1}{2} }$ $= > ( \frac{1}{2} \times \frac{3}{ - 2} ) \: + \: ( \: \frac{ - 2}{3} \times \frac{2}{1} )$ $= > \frac{ - 3}{4} \: + \: \frac{4}{3}$ $= > \frac{ - 9 - 16}{12} \\ \\ = > \frac{ - 25}{12}$ Thus , $\alpha$ + $\beta$ = $\frac{-25}{12}$

28.

Find the zeroes of the qudratic polynomia :6x²-x-2

Answer»

Step-by-step explanation:

6x² - X - 2 = 0
6x² + 4X - 3x - 2 = 0
2x ( 3x + 2 ) - 1 ( 3x - 2 ) = 0
( 2x - 1 ) + ( 3x + 2 ) = 0

Two ZEROES :-

$\red{~▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼~}$

→ 2x - 1 = 0

→ 2x = 1

→ x = ½

$\blue{~▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△~}$

→ 3x + 2 = 0

→ 3x = -2

→ x = $\frac{-2}{3}$

$\red{~▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△▼△~}$

$\alpha$ = ½ and $\beta$ = $\frac{-2}{3}$

We know that

$\frac{ \alpha }{ \beta } + \frac{ \beta }{ \alpha }$

$\frac{ \frac{1}{2} }{ \frac{ - 2}{3} } + \frac{ \frac{ - 2}{3} }{ \frac{1}{2} }$

$= > ( \frac{1}{2} \times \frac{3}{ - 2} ) \: + \: ( \: \frac{ - 2}{3} \times \frac{2}{1} )$

$= > \frac{ - 3}{4} \: + \: \frac{4}{3}$

$= > \frac{ - 9 - 16}{12} \\ \\ = > \frac{ - 25}{12}$

Thus ,

$\alpha$ + $\beta$ = $\frac{-25}{12}$

Discussion

29.	Construct a quadrilateral dear where de=4cm er=5cm ar=4.5 cm ∠a=90° ∠e=60°
Answer» Answer: $? \times \frac{?}{?}$ Aniket PRAJAPATI Step-by-step EXPLANATION: Anil KUMAR

29.

Construct a quadrilateral dear where de=4cm er=5cm ar=4.5 cm ∠a=90° ∠e=60°

Answer»

Answer:

$? \times \frac{?}{?}$

Aniket PRAJAPATI

Step-by-step EXPLANATION:

Anil KUMAR

Discussion

30.	The population of a place increased to 54,000 in 2003 at a rate of 5% per annum(ID) what would be its population in 2005?
Answer» <P>Step-by-step EXPLANATION: Let P be the population in 2001, i.e., 2 years ago Then, PresentPopulation=P×(1+ 100 5 ) 2 ⇒54000=P× 100 105 × 100 105 ⇒P= 105×105 54000×100×100 =48979.59 Hence, the Population in the YEAR 2001 is 48980.

30.

The population of a place increased to 54,000 in 2003 at a rate of 5% per annum(ID) what would be its population in 2005?

Answer»

<P>Step-by-step EXPLANATION:

Let P be the population in 2001, i.e., 2 years ago

Then, PresentPopulation=P×(1+

100

5

)

2

⇒54000=P×

100

105

×

100

105

⇒P=

105×105

54000×100×100

=48979.59

Hence, the Population in the YEAR 2001 is 48980.

Discussion

31.	A is a matrix of order 2×mand B is a matrix of order 3×n such that both AB and BA are defined. Is AB−BA defined ?
Answer» Answer: Since AB EXISTS, so the NUMBER of column in A= Number of column in B. So B has n row. Since BA exists, so the number of column in B= Number of column in A. So B has m column. ∴ B is an n×m matrix. Step-by-step explanation: HOPE THIS HELPS PLEASE MARK AS BRAINLIEST.

31.

A is a matrix of order 2×mand B is a matrix of order 3×n such that both AB and BA are defined. Is AB−BA defined ?

Answer»

Answer:

Since AB EXISTS, so the NUMBER of column in A= Number of column in B.

So B has n row.

Since BA exists, so the number of column in B= Number of column in A.

So B has m column.

∴ B is an n×m matrix.

Step-by-step explanation:

HOPE THIS HELPS PLEASE MARK AS BRAINLIEST.

Discussion

32.	Value of x in (2^3)^4=(2^2)^x
Answer» gdhfdjfsjfvhfhhffhgdshfdfzdsgcdgcfufdigg kaid Step-by-step EXPLANATION: fgxgvhchgdizfdkdmudjfggjzxjgvbgdhdhdhdhfjghfuhfhfhggfdbfxvfbyvngkzrtfzdhsfudroffoYvlykhflhdkhturrutuozpi7dueze5oufdgdcsgxbj

32.

Value of x in (2^3)^4=(2^2)^x

Answer»

gdhfdjfsjfvhfhhffhgdshfdfzdsgcdgcfufdigg kaid

Step-by-step EXPLANATION:

fgxgvhchgdizfdkdmudjfggjzxjgvbgdhdhdhdhfjghfuhfhfhggfdbfxvfbyvngkzrtfzdhsfudroffoYvlykhflhdkhturrutuozpi7dueze5oufdgdcsgxbj

Discussion

33.	X+1/2 - x-2/5 = x+5/4 + 7/15 solve X
Answer» Step-by-step EXPLANATION: ljjlxwlxpurpucjxjwixiecosaisiw8ee haxhllhxw bslypuexpwuxulxhlzyqoyh2luxupwpuemhxehhlxjalhxwlxhalzhwlhhzlaxhwmfzrtwhxshha xhlhlyxyoes

33.

X+1/2 - x-2/5 = x+5/4 + 7/15 solve X

Answer»

Step-by-step EXPLANATION:

ljjlxwlxpurpucjxjwixiecosaisiw8ee haxhllhxw

bslypuexpwuxulxhlzyqoyh2luxupwpuemhxehhlxjalhxwlxhalzhwlhhzlaxhwmfzrtwhxshha xhlhlyxyoes

Discussion

34.	The fifth term of the ap is 19and is first term is 3 what will be it's common different
Answer» Let a and d are first term and common DIFFERENCE of an A . P. nth term = tn = a + ( n - 1 )d----------( 1 ) i) Given t 5 = 19 a + 4d = 19 -------(2) ii ) differnce of the eighth term from the thirteeth term = 20 t 13 - t 8 = 20 a + 12d - ( a + 7d ) = 20 a + 12d - a - 7d = 20 5D = 20 d = 20/ 5 d = 5 Put d = 5 in ( 2 ) a + 4d = 19 a + 4 × 5 = 19 a + 20 = 19 a = 19 - 20 a = - 1 Therefore, a = -1 , d = 5 Required A .P is a , a+ d , a + 2D , a + 3d , ..... -1 , 4 , 9 , 14, 19 , .... I HOPE this will useful to you.

34.

The fifth term of the ap is 19and is first term is 3 what will be it's common different

Answer»

Let a and d are first term and common DIFFERENCE of an A . P.

nth term = tn = a + ( n - 1 )d----------( 1 )

i) Given t 5 = 19

a + 4d = 19 -------(2)

ii ) differnce of the eighth term from

the thirteeth term = 20

t 13 - t 8 = 20

a + 12d - ( a + 7d ) = 20

a + 12d - a - 7d = 20

5D = 20

d = 20/ 5

d = 5

Put d = 5 in ( 2 )

a + 4d = 19

a + 4 × 5 = 19

a + 20 = 19

a = 19 - 20

a = - 1

Therefore,

a = -1 , d = 5

Required A .P is

a , a+ d , a + 2D , a + 3d , .....

-1 , 4 , 9 , 14, 19 , ....

I HOPE this will useful to you.

Discussion

35.	Prove that (√2 + √3) is an irrational number, it is given that √2 is an irrational number.
Answer» Step-by-step EXPLANATION: LET's suppose √3 is a rational number . GIVEN, √2 is an irrational number . We KNOW that irrational + rational = irrational Hence , √2 + √3 = irrational Proved .

35.

Prove that (√2 + √3) is an irrational number, it is given that √2 is an irrational number.

Answer»

Step-by-step EXPLANATION:

LET's suppose √3 is a rational number .

GIVEN, √2 is an irrational number .

We KNOW that irrational + rational = irrational

Hence , √2 + √3 = irrational

Proved .

Discussion

36.	Plzzz anss fastttt.....................
Answer» ANSWER: SAS RULE... As the two sides are same... and both the triangles are having the same right-angled (ANGLES)...

36.

Plzzz anss fastttt.....................

Answer»

ANSWER:

SAS RULE...

As the two sides are same...

and both the triangles are having the same right-angled (ANGLES)...

Discussion

37.	Find the value of tan (-1410°)
Answer» ANSWER: (-104) THANK you so much please MARKS me BRAINLIEST answer

37.

Find the value of tan (-1410°)

Answer»

ANSWER:

(-104)

THANK you so much

please MARKS me BRAINLIEST answer

Discussion

38.	Define resiprocal equation
Answer» Answer: If an EQUATION is UNALTERED by changing X to X1,it is called a RECIPROCAL equation.

38.

Define resiprocal equation

Answer»

Answer:

If an EQUATION is UNALTERED by changing X to X1,it is called a RECIPROCAL equation.

Discussion

39.	Which term of the AP -3,3,9….. is 117
Answer» GIVEN:- ⠀⠀⠀◍ AP = -3 , 3 , 9 ...... ⠀⠀⠀◍ an = 117 ⠀⠀ To find:- ⠀⠀⠀◍ The value of n. ⠀⠀ Identity USED:- ⠀⠀⠀◍ an = a+ (n -1) d. ⠀⠀ Solution:- ⠀⠀⠀◍ Value of d = a2 - a1 ⠀⠀⠀◍ d = 3 - (-3) ⠀⠀⠀◍ d = 6 ⠀ ⠀⠀⠀✯ an = a + (n - 1)d ⠀⠀⠀✯ 117 = -3 + (n - 1)6 ⠀⠀⠀✯ 117 + 3 = 6N - 6 ⠀⠀⠀✯ 120 + 6 = 6n ⠀⠀⠀✯ $\sf\dfrac{\cancel{126}}{\cancel{6}}$ ⠀⠀⠀✯ n = 21 ⠀⠀ Answer:- ⠀⠀⠀★ 21st TERM of an AP -3 , 3 , 9 , ..... is ⠀⠀⠀⠀ 117.

39.

Which term of the AP -3,3,9….. is 117

Answer»

GIVEN:-

⠀⠀⠀◍ AP = -3 , 3 , 9 ......

⠀⠀⠀◍ an = 117

⠀⠀

To find:-

⠀⠀⠀◍ The value of n.

⠀⠀

Identity USED:-

⠀⠀⠀◍ an = a+ (n -1) d.

⠀⠀

Solution:-

⠀⠀⠀◍ Value of d = a2 - a1

⠀⠀⠀◍ d = 3 - (-3)

⠀⠀⠀◍ d = 6

⠀

⠀⠀⠀✯ an = a + (n - 1)d

⠀⠀⠀✯ 117 = -3 + (n - 1)6

⠀⠀⠀✯ 117 + 3 = 6N - 6

⠀⠀⠀✯ 120 + 6 = 6n

⠀⠀⠀✯ $\sf\dfrac{\cancel{126}}{\cancel{6}}$

⠀⠀⠀✯ n = 21

⠀⠀

Answer:-

⠀⠀⠀★ 21st TERM of an AP -3 , 3 , 9 , ..... is

⠀⠀⠀⠀ 117.

Discussion

40.	What is the answer of 102.716×1000
Answer» Answer: 102716 Step-by-step EXPLANATION: =102.716×1000 =102716

40.

What is the answer of 102.716×1000

Answer»

Answer:

102716

Step-by-step EXPLANATION:

=102.716×1000

=102716

Discussion

41.	Which two parties won equal number of seats
Answer» Answer: TWO parties has 100 number of SEATS............

41.

Which two parties won equal number of seats

Answer»

Answer:

TWO parties has 100 number of SEATS............

Discussion

42.	14. If cos (A+B) = 0, and B = 30', then find the value of sin(A - B).
Answer» ANSWER: ANSWER cos(α+β)=0⇒cos(α+β)=COS90(∵cos0=0)⇒α+β=90⇒α=90−βsin(α−β)=SIN(90−2β)=cos2β (∵sin(90−θ)=cosθ)

42.

14. If cos (A+B) = 0, and B = 30', then find the value of sin(A - B).

Answer»

ANSWER:

ANSWER

cos(α+β)=0⇒cos(α+β)=COS90(∵cos0=0)⇒α+β=90⇒α=90−βsin(α−β)=SIN(90−2β)=cos2β (∵sin(90−θ)=cosθ)

Discussion

43.	8. The average marks of a section of strength 60 is 30. The average marks ofanother section of strength 40 is 34. If these two sections forms a class, whatis the average mark of the class?(a) 45.14 (b) 44.13 (c) 45.16 (d) 44.12
Answer» ANSWER: OPTIONS B) ss g f ggggggg g g g

43.

8. The average marks of a section of strength 60 is 30. The average marks ofanother section of strength 40 is 34. If these two sections forms a class, whatis the average mark of the class?(a) 45.14 (b) 44.13 (c) 45.16 (d) 44.12

Answer»

ANSWER:

OPTIONS B)

ss

g

f

ggggggg

g

Discussion

44.	Find the value of ‘p’ for which the pair of linear equations 3px+4y = 7 and 3x+y =6 has exactlyone solution
Answer» Step-by-step EXPLANATION: क्वेश्चन सेकंड ईयर फर्स्ट ईयर

44.

Find the value of ‘p’ for which the pair of linear equations 3px+4y = 7 and 3x+y =6 has exactlyone solution

Answer»

Step-by-step EXPLANATION:

क्वेश्चन सेकंड ईयर फर्स्ट ईयर

Discussion

45.	If x=b(n,p) such that 4 P(x=4)
Answer» <P>ANSWER: 3- p is the answer THENKS

45.

If x=b(n,p) such that 4 P(x=4)

Answer»

<P>ANSWER:

3- p is the answer THENKS

Discussion

46.	(B) (x - y) +(x + y)? + 6x(x2 - y²)
Answer» Answer: First circle - solve by completing the SQUARE: x²+ y² - 4x - 6y - 12 = 0 (x² - 4x) + (y² - 6y) - 12 = 0 (x² - 4x + 4) + (y² - 6y + 9) - 25 = 0 (x-2)² + (y-3)² = 25 So this circle has its center at the point (2,3) and radius 5. Do the same for the second circle: x² + y² + 6x + 18y + 26 = 0 (x² + 6x) + (y² + 18y) + 26 = 0 (x² + 6x + 9) + (y² + 18y + 81) - 64 = 0 (x+3)² + (y+9)² = 64 So this circle has its center at the point (-3, -9) and radius 8. How do we know they touch each other? The x coordinates differ by 5, the y coordinates differ by 12, and the sum of the two radii is 13, and 5/12/13 is a Pythagorean triplet. So the radii of the two circles form the hypotenuse of a right triangle, like this: The point of TANGENCY should be (+1/13, -21/13.) Since the slope of the line that CONNECTS the two radii is 12/5, the slope of the tangent line must be -5/12.

46.

(B) (x - y) +(x + y)? + 6x(x2 - y²)

Answer»

Answer:

First circle - solve by completing the SQUARE:

x²+ y² - 4x - 6y - 12 = 0

(x² - 4x) + (y² - 6y) - 12 = 0

(x² - 4x + 4) + (y² - 6y + 9) - 25 = 0

(x-2)² + (y-3)² = 25

So this circle has its center at the point (2,3) and radius 5.

Do the same for the second circle:

x² + y² + 6x + 18y + 26 = 0

(x² + 6x) + (y² + 18y) + 26 = 0

(x² + 6x + 9) + (y² + 18y + 81) - 64 = 0

(x+3)² + (y+9)² = 64

So this circle has its center at the point (-3, -9) and radius 8.

How do we know they touch each other? The x coordinates differ by 5, the y coordinates differ by 12, and the sum of the two radii is 13, and 5/12/13 is a Pythagorean triplet. So the radii of the two circles form the hypotenuse of a right triangle, like this:

The point of TANGENCY should be (+1/13, -21/13.) Since the slope of the line that CONNECTS the two radii is 12/5, the slope of the tangent line must be -5/12.

Discussion

47.	Let a and be the roots of the equation(X-ax-b)+O.C=0The roots of the equation (X-a)(x-B)-c=0 areoptiona a, cb b, cc a, bd a+c, b+c
Answer» Answer: please MARK me BRAINLISET answer please please please please please please Step-by-step EXPLANATION: please mark me brainliset answer please please please please please please mark me brainliset answer

47.

Let a and be the roots of the equation(X-ax-b)+O.C=0The roots of the equation (X-a)(x-B)-c=0 areoptiona a, cb b, cc a, bd a+c, b+c

Answer»

Answer:

please MARK me BRAINLISET answer please please please please please please

Step-by-step EXPLANATION:

please mark me brainliset answer please please please please please

please mark me brainliset answer

Discussion

48.	O find the the value of x, if the median of given data is 63,29, 32, 49, 50, 2, 2+2, 72, 78, 84, 95,
Answer» Answer: CBSE Class 9 Science, Improvement in Food RESOURCES: Chapter notes (Part-I) Gurmeet Kaur Created On: NOV 28, 2017 CBSE Class 9, Improvement in Food Resources: Notes This ARTICLE brings you the CBSE Class 9 Science notes on chapter 15 ‘Improvement in Food Resources’ (Part-I). These chapter notes are prepared by the subject experts and cover every important topic from the chapter. At the end of the notes you can try the questions asked from the discussed set of topics. These questions will help you to track your preparation LEVEL and GET a hold on the subject. CBSE Class 9 Science Syllabus 2017-2018 Main topics covered in this part of CBSE Class 9 Science, Improvement in Food Resources: Chapter Notes, are:

48.

O find the the value of x, if the median of given data is 63,29, 32, 49, 50, 2, 2+2, 72, 78, 84, 95,

Answer»

Answer:

CBSE Class 9 Science, Improvement in Food RESOURCES: Chapter notes (Part-I)

Gurmeet Kaur

Created On: NOV 28, 2017

CBSE Class 9, Improvement in Food Resources: Notes

This ARTICLE brings you the CBSE Class 9 Science notes on chapter 15 ‘Improvement in Food Resources’ (Part-I). These chapter notes are prepared by the subject experts and cover every important topic from the chapter. At the end of the notes you can try the questions asked from the discussed set of topics. These questions will help you to track your preparation LEVEL and GET a hold on the subject.

CBSE Class 9 Science Syllabus 2017-2018

Main topics covered in this part of CBSE Class 9 Science, Improvement in Food Resources: Chapter Notes, are:

Discussion

49.	4a^3+3 is it a quadratic polynomial
Answer» Answer: no it not a quadratic POLYNOMIAL Step-by-step explanation: PLS makes me brainliest and follow me

49.

4a^3+3 is it a quadratic polynomial

Answer»

Answer:

no it not a quadratic POLYNOMIAL

Step-by-step explanation:

PLS makes me brainliest and follow me

Discussion

50.	A. Prove that Cos theta + Cos(theta +2pi/3) + Cos(theta +4 pi/3) = 0.
Answer» Answer: They say oh my GOD I see the way you shine Take your HAND, my dear, and PLACE them both in mine You know you stopped me DEAD while I was passing by And now I beg to see you dance just one more time Ooh I see you, see you, see you every time And oh my I, I, I like your style You, you make me, make me, make me wanna cry And now I beg to see you dance just one more time So they say Dance for me, dance for me, dance for me, oh, oh, oh I've never seen anybody do the things you do before They say move for me, move for me, move for me, ay, ay, ay And when you're done I'll make you do it all again I said oh my god I see you walking by Take my hands, my dear, and look me in my eyes Just like a monkey I've been dancing my WHOLE life But you just beg to see me dance just one more time Ooh I see you, see you, see you every time And oh my I, I like your style You, you make me, make me, make me wanna cry And now I beg to see you dance just one more time So they say Dance for me, dance for me, dance for me, oh, oh, oh I've never seen anybody do the things you do before They say move for me, move for me, move for me, ay, ay, ay And when you're done I'll make you do it all again They say Dance for me, dance for me, dance for me, oh, oh, oh, oh, oh, oh, oh I've never seen anybody do the things you do before They say move for me, move for me, move for me, ay, ay, ay And when you're done I'll make you do it all again Ooh Woah-oh, woah-oh, oh Ooh Ah ah, ah They say Dance for me, dance for me, dance for me, oh, oh, oh I've never seen anybody do the things you do before They say move for me, move for me, move for me, ay, ay, ay And when you're done I'll make you do it all again They say Dance for me, dance for me, dance for me, oh, oh, oh

50.

A. Prove that Cos theta + Cos(theta +2pi/3) + Cos(theta +4 pi/3) = 0.

Answer»

Answer:

They say oh my GOD I see the way you shine

Take your HAND, my dear, and PLACE them both in mine

You know you stopped me DEAD while I was passing by

And now I beg to see you dance just one more time

Ooh I see you, see you, see you every time

And oh my I, I, I like your style

You, you make me, make me, make me wanna cry

And now I beg to see you dance just one more time

So they say

Dance for me, dance for me, dance for me, oh, oh, oh

I've never seen anybody do the things you do before

They say move for me, move for me, move for me, ay, ay, ay

And when you're done I'll make you do it all again

I said oh my god I see you walking by

Take my hands, my dear, and look me in my eyes

Just like a monkey I've been dancing my WHOLE life

But you just beg to see me dance just one more time

Ooh I see you, see you, see you every time

And oh my I, I like your style

You, you make me, make me, make me wanna cry

And now I beg to see you dance just one more time

So they say

Dance for me, dance for me, dance for me, oh, oh, oh

I've never seen anybody do the things you do before

They say move for me, move for me, move for me, ay, ay, ay

And when you're done I'll make you do it all again

They say

Dance for me, dance for me, dance for me, oh, oh, oh, oh, oh, oh, oh

I've never seen anybody do the things you do before

They say move for me, move for me, move for me, ay, ay, ay

And when you're done I'll make you do it all again

Ooh

Woah-oh, woah-oh, oh

Ooh

Ah ah, ah

They say

Dance for me, dance for me, dance for me, oh, oh, oh

I've never seen anybody do the things you do before

They say move for me, move for me, move for me, ay, ay, ay

And when you're done I'll make you do it all again

They say

Dance for me, dance for me, dance for me, oh, oh, oh

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

Q3. Is y > 5 linear equation ? Give reason.​

Verify this.. very important question ​

60-65 4 65-75 5 75-80 6 80-85 8 mean ​

Mrs. Kaushik has a square plot with side 30 metres. She wants to construct a houseof length 25 m and width 20 m in the middle of the plot. A garden is developed aroundthe house. Find the area of garden.​

What is sets in maths tell short meaning​

14. the value of sin60. cos30 + 2 pointssin30 cOS 60012​

Find the product of (x + 3) and (x + 7)​

To FIND :-

× (x + 3) and (x + 7)

Hope it HELPS U✌️✌️✌️✌️...

If HCF (143, 440) = 11, then what is the LCM (143, 440) ?​

: Find the zeroes of the polynomial p(x)=x2– 3x

Jue. 10:- Simplify:- 131/2​

Solve linear equation x+32 =2x

So simple ...

2x-X= 32

Sin² 0 - 1 Sin O=0 02​

2. Find the product of ( 3 - 2x) (3 + 2x) using suitable identity.​

Find the probability of getting a head when a coin is tossed once . Also find the probability of getting.​

9. Find the value of a so that point (3.a ) lies on the line represented by 2x-3y=5.​

29/8 terminated without using decimal​

5 pencils ad 7 pens together cost 50 wherea 7 pencils and 5 pens together cost 46,cos of one pencil and one pencil

Example for distributive property​

In the given figures value of x is​

Circles having same centre and different radius are called _________ circle.​

Find the nature of the roots of the equation x²+7x+10 = 0​

The symbol % is the sign for ratio. true or false​

Iftwosidesofarightangletriangleare3cmand4cmthenfindhypotenuseofsame tringle​

Find the difference between 4xy and xy.​

Find the reaminder using x^3-2x^2+3x-4 is divide by x+4​

0.5 ka p/q Roop likhiye​

Find the zeroes of the qudratic polynomia :6x²-x-2​

Two ZEROES :-

Construct a quadrilateral dear where de=4cm er=5cm ar=4.5 cm ∠a=90° ∠e=60°

The population of a place increased to 54,000 in 2003 at a rate of 5% per annum(ID) what would be its population in 2005?​

A is a matrix of order 2×mand B is a matrix of order 3×n such that both AB and BA are defined. Is AB−BA defined ?​

Value of x in (2^3)^4=(2^2)^x​

X+1/2 - x-2/5 = x+5/4 + 7/15 solve X​

The fifth term of the ap is 19and is first term is 3 what will be it's common different​

Prove that (√2 + √3) is an irrational number, it is given that √2 is an irrational number.​

Plzzz anss fastttt.....................​

Find the value of tan (-1410°)

Define resiprocal equation

Which term of the AP -3,3,9….. is 117

GIVEN:-

To find:-

Identity USED:-

Solution:-

Answer:-

What is the answer of 102.716×1000​

Which two parties won equal number of seats ​

14. If cos (A+B) = 0, and B = 30', then find the value of sin(A - B).​

8. The average marks of a section of strength 60 is 30. The average marks ofanother section of strength 40 is 34. If these two sections forms a class, whatis the average mark of the class?(a) 45.14 (b) 44.13 (c) 45.16 (d) 44.12​

Find the value of ‘p’ for which the pair of linear equations 3px+4y = 7 and 3x+y =6 has exactlyone solution

If x=b(n,p) such that 4 P(x=4)​

(B) (x - y) +(x + y)? + 6x(x2 - y²)​

Let a and be the roots of the equation(X-ax-b)+O.C=0The roots of the equation (X-a)(x-B)-c=0 areoptiona a, cb b, cc a, bd a+c, b+c​

O find the the value of x, if the median of given data is 63,29, 32, 49, 50, 2, 2+2, 72, 78, 84, 95,​

4a^3+3 is it a quadratic polynomial ​

PLS makes me brainliest and follow me

A. Prove that Cos theta + Cos(theta +2pi/3) + Cos(theta +4 pi/3) = 0.​

Q3. Is y > 5 linear equation ? Give reason.

Verify this.. very important question

60-65 4 65-75 5 75-80 6 80-85 8 mean

Mrs. Kaushik has a square plot with side 30 metres. She wants to construct a houseof length 25 m and width 20 m in the middle of the plot. A garden is developed aroundthe house. Find the area of garden.

What is sets in maths tell short meaning

14. the value of sin60. cos30 + 2 pointssin30 cOS 60012

Find the product of (x + 3) and (x + 7)

If HCF (143, 440) = 11, then what is the LCM (143, 440) ?

Jue. 10:- Simplify:- 131/2

Sin² 0 - 1 Sin O=0 02

2. Find the product of ( 3 - 2x) (3 + 2x) using suitable identity.

Find the probability of getting a head when a coin is tossed once . Also find the probability of getting.

9. Find the value of a so that point (3.a ) lies on the line represented by 2x-3y=5.

29/8 terminated without using decimal

Example for distributive property

In the given figures value of x is

Circles having same centre and different radius are called _________ circle.

Find the nature of the roots of the equation x²+7x+10 = 0

The symbol % is the sign for ratio. true or false

Iftwosidesofarightangletriangleare3cmand4cmthenfindhypotenuseofsame tringle

Find the difference between 4xy and xy.

Find the reaminder using x^3-2x^2+3x-4 is divide by x+4

0.5 ka p/q Roop likhiye

Find the zeroes of the qudratic polynomia :6x²-x-2

The population of a place increased to 54,000 in 2003 at a rate of 5% per annum(ID) what would be its population in 2005?

A is a matrix of order 2×mand B is a matrix of order 3×n such that both AB and BA are defined. Is AB−BA defined ?

Value of x in (2^3)^4=(2^2)^x

X+1/2 - x-2/5 = x+5/4 + 7/15 solve X

The fifth term of the ap is 19and is first term is 3 what will be it's common different

Prove that (√2 + √3) is an irrational number, it is given that √2 is an irrational number.

Plzzz anss fastttt.....................

What is the answer of 102.716×1000

Which two parties won equal number of seats

14. If cos (A+B) = 0, and B = 30', then find the value of sin(A - B).

8. The average marks of a section of strength 60 is 30. The average marks ofanother section of strength 40 is 34. If these two sections forms a class, whatis the average mark of the class?(a) 45.14 (b) 44.13 (c) 45.16 (d) 44.12

If x=b(n,p) such that 4 P(x=4)

(B) (x - y) +(x + y)? + 6x(x2 - y²)

Let a and be the roots of the equation(X-ax-b)+O.C=0The roots of the equation (X-a)(x-B)-c=0 areoptiona a, cb b, cc a, bd a+c, b+c

O find the the value of x, if the median of given data is 63,29, 32, 49, 50, 2, 2+2, 72, 78, 84, 95,

4a^3+3 is it a quadratic polynomial

A. Prove that Cos theta + Cos(theta +2pi/3) + Cos(theta +4 pi/3) = 0.