332354 + Interview Questions in Secondary School in Math

1.	(a2-b2)c+(b2-c2)a fastorization
Answer» Step-by-step EXPLANATION: (a+b)(a-b)C+(b+c)(b-c)a

1.

(a2-b2)c+(b2-c2)a fastorization

Answer»

Step-by-step EXPLANATION:

(a+b)(a-b)C+(b+c)(b-c)a

Discussion

2.	The sids of a triangle are in the ratios 1:1.5:2 and its perimeter is 18 cm. Find the length of each side.
Answer» Answer: 4 , 6 , 9 Step-by-step explanation: given sides of a TRIANGLE are in the ratios 1:1.5:2 PERIMETER is 18 cm to find length of each side assumption let the RATIO be in terms of x solution sides of triangle are x, 1.5x, 2x perimeter = x + 1.5x + 2x = 4.5x given perimeter = 18 therefore 4.5x = 18 ===> x = 4 1.5x = 6 2x = 9

2.

The sids of a triangle are in the ratios 1:1.5:2 and its perimeter is 18 cm. Find the length of each side.

Answer»

Answer:

4 , 6 , 9

Step-by-step explanation:

given

sides of a TRIANGLE are in the ratios 1:1.5:2

PERIMETER is 18 cm

to find

length of each side

assumption

let the RATIO be in terms of x

solution

sides of triangle are x, 1.5x, 2x

perimeter = x + 1.5x + 2x

= 4.5x

given perimeter = 18

therefore 4.5x = 18

===> x = 4

1.5x = 6

2x = 9

Discussion

3.	Write the equation of x axis and y axis also name the point of intersection of the axis
Answer» ANSWER: GIVE me BRAINLIEST ANS PLZZZZZZZZZZ

3.

Write the equation of x axis and y axis also name the point of intersection of the axis

Answer»

ANSWER:

GIVE me BRAINLIEST ANS PLZZZZZZZZZZ

Discussion

4.	Percentage of multiple 7 up to 70
Answer» Number of multiple of 7= 10 percent = 10 / 70 × 100 = 14.44 % please MARK me as BRAINLIST.

4.

Percentage of multiple 7 up to 70

Answer»

Number of multiple of 7= 10

percent = 10 / 70 × 100

= 14.44 %

please MARK me as BRAINLIST.

Discussion

5.	How many conditions are there for congruence of triangle
Answer» There are four conditions for two triangle s to be congruent RHS(RIGHT Hypotenuse SIDE) SAS(Side ANGLE Side) AAS(Angle Angle Side) Also known as ASA(ANGLE SIDE ANGLE) SSS(Side Side Side) HOPE IT HELPS YOU.

5.

How many conditions are there for congruence of triangle

Answer»

There are four conditions for two triangle s to be congruent

RHS(RIGHT Hypotenuse SIDE)

SAS(Side ANGLE Side)

AAS(Angle Angle Side) Also known as ASA(ANGLE SIDE ANGLE)

SSS(Side Side Side)

HOPE IT HELPS YOU.

Discussion

6.	Special name for polynomial
Answer» Step-by-step explanation: A monomial is a polynomial with only one TERM, such as 3x, 4xy, 7, and 3x2y34. A binomial is a polynomial with EXACTLY two TERMS, such as x + 3, 4x2 + 5X, and x + 2y7. A trinomial is a polynomial with exactly THREE terms, such as 4x4 + 3x3 – 2.

6.

Special name for polynomial

Answer»

Step-by-step explanation:

A monomial is a polynomial with only one TERM, such as 3x, 4xy, 7, and 3x2y34.

A binomial is a polynomial with EXACTLY two TERMS, such as x + 3, 4x2 + 5X, and x + 2y7.

A trinomial is a polynomial with exactly THREE terms, such as 4x4 + 3x3 – 2.

Discussion

7.	\| 1+12M = 10 Magm.find the valueof nI will mark You as brainlieast
Answer» ANSWER: can you TYPE the QUESTION PLZZZZ

7.

| 1+12M = 10 Magm.find the valueof nI will mark You as brainlieast

Answer»

ANSWER:

can you TYPE the QUESTION PLZZZZ

Discussion

8.	4 square minus 16 upon B square
Answer» ANSWER: Step-by-step EXPLANATION: → (2²)²- 2^4/b² → 2²*² - 2^4/b^4 → [16(b-1)(b+1)] / b²

8.

4 square minus 16 upon B square

Answer»

ANSWER:

Step-by-step EXPLANATION:

→ (2²)²- 2^4/b²

→ 2²*² - 2^4/b^4

→ [16(b-1)(b+1)] / b²

Discussion

9.	How to do square root chapter class 8
Answer» ANSWER: $2 \sqrt{2}$ is ROOT of 8

9.

How to do square root chapter class 8

Answer»

ANSWER:

$2 \sqrt{2}$

is ROOT of 8

Discussion

10.	♡ VIEWS Viry 4 ck (22-48), then show thatdynnyayang
Answer» ANSWER: ajcwyscz SHW sue SJ xja qjs wiw ZJS

10.

♡ VIEWS Viry 4 ck (22-48), then show thatdynnyayang

Answer»

ANSWER:

ajcwyscz SHW sue SJ xja qjs wiw ZJS

Discussion

11.	Amount = rupees 10,000 rate is = 4% time 8 years find the principal without using formula
Answer» Answer: P:- 303.03 Step-by-step EXPLANATION: Given, A:-10,000 R:- 4% T:- 8 years A:-p(1+rt) 10,000:-p(1+(4)(8)) 10,000:-p(33) p:-10,000/33 p:-303.03

11.

Amount = rupees 10,000 rate is = 4% time 8 years find the principal without using formula

Answer»

Answer:

P:- 303.03

Step-by-step EXPLANATION:

Given,

A:-10,000

R:- 4%

T:- 8 years

A:-p(1+rt)

10,000:-p(1+(4)(8))

10,000:-p(33)

p:-10,000/33

p:-303.03

Discussion

12.	in figure [5b(ii)], angle POR = (2x -25)°and angle QOR=(3x+5), then find the value of x for which POQ becomes a straight line.
Answer» ANSWER: X = 32 Step-by-step EXPLANATION: (3x+5) + (2x-25) = 180 3x+5+2x-25 =180 5x-20 = 180 5x = 180-20 5x = 160 x= 160/5 x = 32

12.

in figure [5b(ii)], angle POR = (2x -25)°and angle QOR=(3x+5), then find the value of x for which POQ becomes a straight line.

Answer»

ANSWER:

X = 32

Step-by-step EXPLANATION:

(3x+5) + (2x-25) = 180

3x+5+2x-25 =180

5x-20 = 180

5x = 180-20

5x = 160

x= 160/5

x = 32

Discussion

13.	(1 + tan^2theta) (1 - sin^2theta) = _____
Answer» Answer: 1 Step-by-step EXPLANATION: (1+tan2theta)(1-sin2theta) =(sec2theta)(COS2THETA).....( using the trigonometric property... sin2theta + cos2theta = 1 and 1 + tan2 theta = SEC2 theta) =sec2theta x 1/sec2theta =1 Hope you like it

13.

(1 + tan^2theta) (1 - sin^2theta) = _____

Answer»

Answer:

1

Step-by-step EXPLANATION:

(1+tan2theta)(1-sin2theta)

=(sec2theta)(COS2THETA).....( using the trigonometric property... sin2theta + cos2theta = 1 and 1 + tan2 theta = SEC2 theta)

=sec2theta x 1/sec2theta

=1

Hope you like it

Discussion

14.	Find zero of polynomial x2-8x+12 and verify relationship between zeros and coefficent of polynomial
Answer» Step-by-step explanation: The first TERM is, x^2 its coefficient is 1 . The middle term is, -8x its coefficient is -8 . The last term, "the CONSTANT", is +12 Step-1 : Multiply the coefficient of the first term by the constant 1 • 12 = 12 Step-2 : Find two factors of 12 WHOSE sum equals the coefficient of the middle term, which is -8 . -6 + -2 = -8 That's it Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -6 and -2 x2 - 6x - 2x - 12 Step-4 : Add up the first 2 TERMS, pulling out like factors : x • (x-6) Add up the last 2 terms, pulling out common factors : 2 • (x-6) Step-5 : Add up the four terms of step 4 : (x-2) • (x-6) Which is the desired factorization x= 2 or x= 6. *relationship between zeros and coefficent of polynomial..* α+β = -b/a. αβ =c/a. sum of zeroes =-b/a so,2+6 = -(-8)/1 8=8. product of zeroes =c/a . (2)(6) = 12/1. 12 = 12.

14.

Find zero of polynomial x2-8x+12 and verify relationship between zeros and coefficent of polynomial

Answer»

Step-by-step explanation:

The first TERM is, x^2 its coefficient is 1 .

The middle term is, -8x its coefficient is -8 .

The last term, "the CONSTANT", is +12

Step-1 : Multiply the coefficient of the first term by the constant 1 • 12 = 12

Step-2 : Find two factors of 12 WHOSE sum equals the coefficient of the middle term, which is -8 .

-6 + -2 = -8 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -6 and -2

x2 - 6x - 2x - 12

Step-4 : Add up the first 2 TERMS, pulling out like factors :

x • (x-6)

Add up the last 2 terms, pulling out common factors :

2 • (x-6)

Step-5 : Add up the four terms of step 4 :

(x-2) • (x-6)

Which is the desired factorization

x= 2 or x= 6.

relationship between zeros and coefficent of polynomial..

α+β = -b/a.

αβ =c/a.

sum of zeroes =-b/a

so,2+6 = -(-8)/1

8=8.

product of zeroes =c/a .

(2)(6) = 12/1.

12 = 12.

Discussion

15.	If an angle is half of its complement find the measure of the angles
Answer» ANSWER: Step-by-step EXPLANATION: → LET angles be x ,x/2, → since angles are complementary → SUM of two angles is 90 degrees → x+x/2=90 → 3x=180 → x=60 → Angles are 60,30.

15.

If an angle is half of its complement find the measure of the angles

Answer»

ANSWER:

Step-by-step EXPLANATION:

→ LET angles be x ,x/2,

→ since angles are complementary

→ SUM of two angles is 90 degrees

→ x+x/2=90

→ 3x=180

→ x=60

→ Angles are 60,30.

Discussion

16.	Symmetry ink dot design
Answer» What do you MEAN? PLEASE EXPLAIN

16.

Symmetry ink dot design

Answer»

What do you MEAN? PLEASE EXPLAIN

Discussion

17.	I am 17 find my age after 5 years
Answer» Your AGE will be 22 after 5 YEARS

17.

I am 17 find my age after 5 years

Answer»

Your AGE will be 22 after 5 YEARS

Discussion

18.	Please answer this question.. correct answer will get brainliest
Answer» Step-by-step EXPLANATION: $Let \: \alpha = \frac{1}{2} \\: \beta = \frac{-3}{2}\: and\:\\ p(x)= 4x^{2}+4x-3 --(1)$ Now , $i ) Put\: \alpha\: in \:equation\: (1), \:we \:get\\p(\frac{1}{2})=4(\frac{1}{2})^{2}+4(\frac{1}{2})-3\\=4\times \frac{1}{4}+2-3\\=1+2-3\\=0\\$ THEREFORE, $p(\frac{1}{2})=0$ $\alpha \: is \: a zero\: of \:p(x)$ $ii) Put\: \beta\: in \:equation\: (1), \:we \:get\\p(\frac{-3}{2})=4(\frac{-3}{2})^{2}+4(\frac{-3}{2})-3\\=4\times \frac{9}{4}-6-3\\=9-6-3\\=0\\$ Therefore, $p(\frac{-3}{2})=0$ $\beta \: is \: a zero\: of \:p(x)$ III) COMPARE 4x²+4x-3 with ax²+bx+C , we get a=4, b=4, c =-3 $Sum \:of \:the \: zeroes \\=\frac{1}{2}+\frac{-3}{2}\\=\frac{1-3}{2}\\=\frac{-2}{2}\\=\frac{-1}{1}\\=\frac{-coefficient\:of\:x}{coefficient\:of \:x^{2}}$ $Product\:of\:zeroes\\=\frac{1}{2}\times \frac{-3}{2}\\=\frac{-3}{4}=\frac{constant}{coefficient\:of\:x^{2}}$ •••♪

18.

Please answer this question.. correct answer will get brainliest

Answer»

Step-by-step EXPLANATION:

$Let \: \alpha = \frac{1}{2} \\: \beta = \frac{-3}{2}\: and\:\\ p(x)= 4x^{2}+4x-3 --(1)$

Now ,

$i ) Put\: \alpha\: in \:equation\: (1), \:we \:get\\p(\frac{1}{2})=4(\frac{1}{2})^{2}+4(\frac{1}{2})-3\\=4\times \frac{1}{4}+2-3\\=1+2-3\\=0\\$

THEREFORE,

$p(\frac{1}{2})=0$

$\alpha \: is \: a zero\: of \:p(x)$

$ii) Put\: \beta\: in \:equation\: (1), \:we \:get\\p(\frac{-3}{2})=4(\frac{-3}{2})^{2}+4(\frac{-3}{2})-3\\=4\times \frac{9}{4}-6-3\\=9-6-3\\=0\\$

Therefore,

$p(\frac{-3}{2})=0$

$\beta \: is \: a zero\: of \:p(x)$

III) COMPARE 4x²+4x-3 with

ax²+bx+C , we get

a=4, b=4, c =-3

$Sum \:of \:the \: zeroes \\=\frac{1}{2}+\frac{-3}{2}\\=\frac{1-3}{2}\\=\frac{-2}{2}\\=\frac{-1}{1}\\=\frac{-coefficient\:of\:x}{coefficient\:of \:x^{2}}$

$Product\:of\:zeroes\\=\frac{1}{2}\times \frac{-3}{2}\\=\frac{-3}{4}=\frac{constant}{coefficient\:of\:x^{2}}$

•••♪

Discussion

19.	A ball is thrown vertically upward from the top of tower with the speed of 100m/s .it strikes the pond near the base of the tower after 25sec the height of tower is
Answer» Step-by-step EXPLANATION: HERE IS YOUR SOLUTION TELL ME IF IT IS NOT CLEAR

19.

A ball is thrown vertically upward from the top of tower with the speed of 100m/s .it strikes the pond near the base of the tower after 25sec the height of tower is

Answer»

Step-by-step EXPLANATION:

HERE IS YOUR SOLUTION

TELL ME IF IT IS NOT CLEAR

Discussion

20.	Son of following mixed fractions3/1/5divide4/2/3
Answer» *answer: 7 MIXED 13/15* Step-by-step explanation: 3 mixed 1/5+4 mixed 2/3 =(3+4)+(1/5+2/3) =7+(31+25)÷15 =7+13/15 =7mixed 13/15

20.

Son of following mixed fractions3/1/5divide4/2/3

Answer»

answer:

7 MIXED 13/15

Step-by-step explanation:

3 mixed 1/5+4 mixed 2/3

=(3+4)+(1/5+2/3)

=7+(3*1+2*5)÷15

=7+13/15

=7mixed 13/15

Discussion

21.	What percent of 7 is 36
Answer» Answer: 7%of X is 36 Step-by-step explanation: 7÷100×x=36 7÷100x=36 Then x,=36×7÷100 9×7÷25=63÷25

21.

What percent of 7 is 36

Answer»

Answer:

7%of X is 36

Step-by-step explanation:

7÷100×x=36

7÷100x=36

Then x,=36×7÷100

9×7÷25=63÷25

Discussion

22.	How to master at maths please help
Answer» Solve QUESTIONS from ur exercises nd examples of ur book. and ALSO prefer from other books,LIKE "Solved test PAPERS of Mathematics 2019".

22.

How to master at maths please help

Answer»

Solve QUESTIONS from ur exercises nd examples of ur book. and ALSO prefer from other books,LIKE "Solved test PAPERS of Mathematics 2019".

Discussion

23.	Use euclids division algorithm to find the hcf of 196 and 38220.
Answer» Answer: 196 Step-by-step EXPLANATION:

23.

Use euclids division algorithm to find the hcf of 196 and 38220.

Answer»

Answer:

196

Step-by-step EXPLANATION:

Discussion

24.	Solve the type of linear equation for x and y 1/2x-1/y= -11/x+1/2y=8
Answer» Answer: 1/2x-1/y=-1----(I) 1/x+1/2y=8-----(II) (I)×1/2 1/4x-1/2y=-1/2 1/x+1/2y=8 cancelled1/2y 1/4x+1/x=-1/2+8 5/4x=-15/2 -60x=10 x=10/-60 x=-1/6

24.

Solve the type of linear equation for x and y 1/2x-1/y= -11/x+1/2y=8

Answer»

Answer:

1/2x-1/y=-1----(I)

1/x+1/2y=8-----(II)

(I)×1/2

1/4x-1/2y=-1/2

1/x+1/2y=8

cancelled1/2y

1/4x+1/x=-1/2+8

5/4x=-15/2

-60x=10

x=10/-60

x=-1/6

Discussion

25.	the earth makes a complete rotation on its axis in 24 hrs. how long will it take to turn through 130°
Answer» For 360° rotation it takes 24 HRS or 86400 s So, for 130° ROTATION it'll take {(86400÷360)×130} s= 3120 s

25.

the earth makes a complete rotation on its axis in 24 hrs. how long will it take to turn through 130°

Answer»

For 360° rotation it takes 24 HRS or 86400 s

So, for 130° ROTATION it'll take {(86400÷360)×130} s= 3120 s

Discussion

26.	Write expanded form 29.41
Answer» 20+1+ 4/100+ 1/ 10 is the EXPANDED from

26.

Write expanded form 29.41

Answer»

20+1+ 4/100+ 1/ 10

is the EXPANDED from

Discussion

27.	Differentiate cosx
Answer» ANSWER: HEY MATE WE HAVE TO DIFFERENTIATE COSX WITH WHAT XD MARK MY ANSWER AS BRAINLIEST AND I WILL FOLLOW U PLEASE

27.

Differentiate cosx

Answer»

ANSWER:

HEY MATE WE HAVE TO DIFFERENTIATE COSX WITH WHAT

XD

MARK MY ANSWER AS BRAINLIEST AND I WILL FOLLOW U PLEASE

Discussion

28.	Can anyone answers this question?
Answer» <P>p (1)=1-1+1-1=0 p (-1)=-1-1-1-1=-4 p (-1)/2+p (1)/2=-4/2=-2 mark the ANSWER as BRAINLIEST

28.

Can anyone answers this question?

Answer»

<P>p (1)=1-1+1-1=0

p (-1)=-1-1-1-1=-4

p (-1)/2+p (1)/2=-4/2=-2

mark the ANSWER as BRAINLIEST

Discussion

29.	How to do simplify in a trick in math
Answer» ANSWER: What is for simplify Step-by-step EXPLANATION:

29.

How to do simplify in a trick in math

Answer»

ANSWER:

What is for simplify

Step-by-step EXPLANATION:

Discussion

30.	for the polynomial a^2(b-c) + b^2(c-a) + c^2(a-b), prove that (a-b) is a factor of it, using factors theorem
Answer» ANSWER: Step-by-step explanation: let F(a)=a^2(b-c) + b^2(c-a) + c^2(a-b) PUTTING a=b MEAN we will write b in place of b f(b)=b^2(b-c)+b^2(c-b)+c^2(b-b) =b^2(b-c+c-b)+c^20 =b^20+0 =0 so f(b)=0 hence a-b is factor of f(a) or a-b is factor of the polynomial GIVEN

30.

for the polynomial a^2(b-c) + b^2(c-a) + c^2(a-b), prove that (a-b) is a factor of it, using factors theorem

Answer»

ANSWER:

Step-by-step explanation:

let F(a)=a^2(b-c) + b^2(c-a) + c^2(a-b)

PUTTING a=b MEAN we will write b in place of b

f(b)=b^2(b-c)+b^2(c-b)+c^2(b-b)

=b^2(b-c+c-b)+c^2*0

=b^2*0+0

=0

so f(b)=0

hence a-b is factor of f(a)

or a-b is factor of the polynomial GIVEN

Discussion

31.	If √2 - 1=1.414 and √3= 1.732 then find the value of 4/3√3-2√2 + 3/3√3+2√2
Answer» ANSWER: hi Step-by-step EXPLANATION:

31.

If √2 - 1=1.414 and √3= 1.732 then find the value of 4/3√3-2√2 + 3/3√3+2√2

Answer»

ANSWER:

hi

Step-by-step EXPLANATION:

Discussion

32.	Found rational number for 0.25 and 0.35
Answer» ANSWER: Step-by-step explanation: 0.25=25/100=1/4 and 0.35=35/100=7/20

32.

Found rational number for 0.25 and 0.35

Answer»

ANSWER:

Step-by-step explanation:

0.25=25/100=1/4

and 0.35=35/100=7/20

Discussion

33.	4 6 83 5 57 11 ?Reasoning is question
Answer» ANSWER: Here's your answer Step-by-step explanation: 468+355=711

33.

4 6 83 5 57 11 ?Reasoning is question

Answer»

ANSWER:

Here's your answer

Step-by-step explanation:

468+355=711

Discussion

34.	Please answer if you knowThe fourth term of G.P is square of 2nd term and first term is -3 determine (1)7th term(2)6th term
Answer» Answer: Step-by-step explanation: LET a is the first TERM and r is common ratio A4=ar^3 a2=ar then a4=(a2)² ar³=(ar²)²=a²r⁴ a²r⁴=ar³ ar=1 a=-3 r=1/a=-1/3 a7=-3(-1/3)⁶=-31/3⁶=-1/3⁵ a6=ar⁵=-3*(-1/3)⁵=1/3⁴

34.

Please answer if you knowThe fourth term of G.P is square of 2nd term and first term is -3 determine (1)7th term(2)6th term

Answer»

Answer:

Step-by-step explanation:

LET a is the first TERM and r is common ratio

A4=ar^3

a2=ar

then a4=(a2)²

ar³=(ar²)²=a²r⁴

a²r⁴=ar³

ar=1

a=-3

r=1/a=-1/3

a7=-3*(-1/3)⁶=-3*1/3⁶=-1/3⁵

a6=ar⁵=-3*(-1/3)⁵=1/3⁴

Discussion

35.	IN subtaction using no line we move
Answer» ANSWER: In substraction USING no. line we move towards LEFT.

35.

IN subtaction using no line we move

Answer»

ANSWER:

In substraction USING no. line we move towards LEFT.

Discussion

36.	What is full form of M F B T Cthis question from English not math
Answer» ANSWER: Modern FORTHRIGHT BRILLIANT Talkative COMPASSIONATE

36.

What is full form of M F B T Cthis question from English not math

Answer»

ANSWER:

Modern FORTHRIGHT BRILLIANT Talkative COMPASSIONATE

Discussion

37.	When a polynomial p(x) of degree 3 is divided by 3x^2-8x+5?
Answer» Answer: It is not POSSIBLE as degree 3 POLYNOMIAL DIVIDES 2 degree polynomials

37.

When a polynomial p(x) of degree 3 is divided by 3x^2-8x+5?

Answer»

Answer:

It is not POSSIBLE as degree 3 POLYNOMIAL DIVIDES 2 degree polynomials

Discussion

38.	Help me out with this question.
Answer» Answer: PUT 2 in PLACE of x. so EQN BECOMES. 2×2³-5×2²+b=0 16-20+b=0 so B=4.

38.

Help me out with this question.

Answer»

Answer:

PUT 2 in PLACE of x.

so EQN BECOMES.

2×2³-5×2²+b=0

16-20+b=0

so

B=4.

Discussion

39.	HiI will mark as brain list Please tell me answer of this question in easy way but Step-by-step explanation
Answer» Step-by-step explanation: hey i have no acess to intersect BUTTON so i wi use ∆ in PLACE of it SORRY about that your explanation :- we know that n(X U Y) = n(X) + n(Y) - n (X ∆ Y) so let US PUT X = A and Y = B So, 29 = 15 + n(B) -7 so n(B) =21 Hope it helps

39.

HiI will mark as brain list Please tell me answer of this question in easy way but Step-by-step explanation

Answer»

Step-by-step explanation:

hey

i have no acess to intersect BUTTON so i wi use ∆ in PLACE of it SORRY about that

your explanation :-

we know that n(X U Y) = n(X) + n(Y) - n (X ∆ Y)

so let US PUT X = A and Y = B

So,

29 = 15 + n(B) -7

so n(B) =21

Hope it helps

Discussion

40.	10. The probability of a leap year having 53 Wednesday isA) 1/7B) 2/7c)3/7d) 0
Answer» (a) 1/7 is the CORRECT ANSWER

Discussion

41.	479 kg is equal to dash grams
Answer» ANSWER: As 1 KG have 1000 g THEREFORE 479 kg is EQUAL to 0.479 g.

41.

479 kg is equal to dash grams

Answer»

ANSWER:

As 1 KG have 1000 g THEREFORE 479 kg is EQUAL to 0.479 g.

Discussion

42.	Rekha collected some coins of Rs 1 rupees and 5 rupees in her Piggy Bank if we had 320 in total and total numbers of coins where 200 find the number of coins of each denomination
Answer» LET's the number of 1 rupee coins be x. And the number of 5 rupee coins be y. And the number of 1 rupee coins and 5 rupee coins combine together to get 200 coins. So, let's write the above SITUATION arithmetically, or put it in an equation; x + y = 200 And let's term the above equation as Equation 1. And we can have one more equation, i.e., x + 5y = 320; How?? As we know that the total AMOUNT is ₹320, so the number of 1 rupee coins and the number of 5 rupee coins together is ₹320 Why 5y?? That's because y is just the number of coins, so we have to multiply 5 with it so that it becomes the amount of 5 rupee coins So, now let's term the above equation as Equation 2. Now let's start solving the question; First let's try to find the value of y using elimination; So, by subtracting Equation 1 from Equation 2, we get; 4y = 120 As we have to isolate y, let's divide the equation by 4; $\dfrac{\cancel{4}\text{y}}{\cancel{4}}=\dfrac{120}{4}$ Simplify; y = 30 Now, let's SUBSTITUTE the value of y to equation 1, to find the value of x; x + (30) = 200 Subtract 30 from both the sides; x + 30 - 30 = 200 - 30 Simplify; x = 170 Therefore, there are 170 coins of 1 rupee and 30 coins of 5 rupee.

42.

Rekha collected some coins of Rs 1 rupees and 5 rupees in her Piggy Bank if we had 320 in total and total numbers of coins where 200 find the number of coins of each denomination

Answer»

LET's the number of 1 rupee coins be x.

And the number of 5 rupee coins be y.

And the number of 1 rupee coins and 5 rupee coins combine together to get 200 coins.

So, let's write the above SITUATION arithmetically, or put it in an equation;

x + y = 200

And let's term the above equation as Equation 1.

And we can have one more equation, i.e., x + 5y = 320;

**How?? As we know that the total AMOUNT is ₹320, so the number of 1 rupee coins and the number of 5 rupee coins together is ₹320**

**Why 5y?? That's because y is just the number of coins, so we have to multiply 5 with it so that it becomes the amount of 5 rupee coins**

So, now let's term the above equation as Equation 2.

Now let's start solving the question;

First let's try to find the value of y using elimination;

So, by subtracting Equation 1 from Equation 2, we get;

4y = 120

As we have to isolate y, let's divide the equation by 4;

$\dfrac{\cancel{4}\text{y}}{\cancel{4}}=\dfrac{120}{4}$

Simplify;

y = 30

Now, let's SUBSTITUTE the value of y to equation 1, to find the value of x;

x + (30) = 200

Subtract 30 from both the sides;

x + 30 - 30 = 200 - 30

Simplify;

x = 170

Therefore, there are 170 coins of 1 rupee and 30 coins of 5 rupee.

Discussion

43.	Sin70/cos20 + cosec20/sec70 - 2cos70 - cosec20 =0
Answer» ANSWER: sin70/cos(90-70) +cosec20/sec(90-20)-2cos70/cosec(90-70) sin70/sin70+cosec20/sec20-2cos70/cos70 1+1-2=0

43.

Sin70/cos20 + cosec20/sec70 - 2cos70 - cosec20 =0

Answer»

ANSWER:

sin70/cos(90-70) +cosec20/sec(90-20)-2cos70/cosec(90-70)

sin70/sin70+cosec20/sec20-2cos70/cos70

1+1-2=0

Discussion

44.	Find the square root of 160 upto 2 decimal places
Answer» The ANSWER will be 12.64.

44.

Find the square root of 160 upto 2 decimal places

Answer»

The ANSWER will be 12.64.

Discussion

45.	VIVA VOCEIn the given figure, chords AB and CD ofa circle when produced meet at P. IfZAPD = 35º and ZBCD = 25°, then findZADC.35P
Answer» Answer: FIGURE is not clear .... I'm not ABLE to find the respective answer!!

45.

VIVA VOCEIn the given figure, chords AB and CD ofa circle when produced meet at P. IfZAPD = 35º and ZBCD = 25°, then findZADC.35P

Answer»

Answer:

FIGURE is not clear .... I'm not ABLE to find the respective answer!!

Discussion

46.	Find five rational number between -4/7 and 3/7
Answer» -4/7 and 3/7 -4×2/7×2 = -8/14 and 3×2/7×2 = 6/14 So RATIONAL NUMBER are: -8/14, -7/14 , -6/14, -5 /14, -4/14, -3/14, -2/14, -1/14, 0/14, 1/14, 2/14, 3/14 TAKE out any 5 rational number from it.

46.

Find five rational number between -4/7 and 3/7

Answer»

-4/7 and 3/7

-4×2/7×2 = -8/14 and 3×2/7×2 = 6/14

So RATIONAL NUMBER are:

-8/14, -7/14 , -6/14, -5 /14, -4/14, -3/14, -2/14, -1/14, 0/14, 1/14, 2/14, 3/14

TAKE out any 5 rational number from it.

Discussion

47.	What amount is 15% more than rupees 150
Answer» Answer: 172.5 Step-by-step EXPLANATION: HOPE it HELPS you

47.

What amount is 15% more than rupees 150

Answer»

Answer:

172.5

Step-by-step EXPLANATION:

HOPE it HELPS you

Discussion

48.	The probability of a non leap year having 53 Mondays is....
Answer» Answer: 2/7 as TWO DAYS are EXTRA.

48.

The probability of a non leap year having 53 Mondays is....

Answer»

Answer:

2/7 as TWO DAYS are EXTRA.

Discussion

49.	Find thezeroes of the following quadratic polynomials abd verify the relationshipbetween the zeroes and the coefficients : -1 + 3x + 10x^2
Answer» *SOLUTION☺* *Let* f(x)= 10x^2+3x-1 *and* *ALPHA* *and* *beta* be *it's* *zeroes* *Here, a= 10, b= 3, C= -1 =) 10x^2+3x-1=0 =) 10x^2+(5-2)x-1=0 =) 10x^2+5x-2x-1=0 =) 10x(x+5)-2(x+5) =0 =)(x+5) (10x-2)=0 =) x+5= 0 or 10x-2=0 =) x= -5 or 10x= 2 =) x= 5 or x= 2/10 = 1/5 Now, Alpha+ beta= 5+ 1/5= 25+1/5 =) 26/5 = - COEFFICIENT* of x/*coefficient* of x^2 Aplha.beta= 5× 1/5= 1 = coefficient term/cofficient** of x^2 hope it helps

49.

Find thezeroes of the following quadratic polynomials abd verify the relationshipbetween the zeroes and the coefficients : -1 + 3x + 10x^2

Answer»

SOLUTION☺

Let f(x)= 10x^2+3x-1 and ALPHA and beta be it's zeroes

Here, a= 10, b= 3, C= -1

=) 10x^2+3x-1=0

=) 10x^2+(5-2)x-1=0

=) 10x^2+5x-2x-1=0

=) 10x(x+5)-2(x+5) =0

=)(x+5) (10x-2)=0

=) x+5= 0 or 10x-2=0

=) x= -5 or 10x= 2

=) x= 5 or x= 2/10 = 1/5

Now,

Alpha+ beta= 5+ 1/5= 25+1/5

=) 26/5 = - COEFFICIENT of x/coefficient of x^2

Aplha.beta= 5× 1/5= 1 = coefficient term/cofficient of x^2

hope it helps

Discussion

50.	Root3+1upon root 3 -1=a+broot3
Answer» ANSWER: it was too SIMPLE.....GIVE me BRAINLIST....PLEASE

50.

Root3+1upon root 3 -1=a+broot3

Answer»

ANSWER:

it was too SIMPLE.....GIVE me BRAINLIST....PLEASE

Discussion

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