332354 + Interview Questions in Secondary School in Math

1.	What is the estimated sum of 245+475?
Answer» Answer: 700 is it RIGHT or WRONG.

1.

What is the estimated sum of 245+475?

Answer»

Answer:

700 is it RIGHT or WRONG.

Discussion

2.	Find the distance of the point A ( 0, -3 ) from the origin.
Answer» Step-by-step EXPLANATION: the DISTANCE from ORIGIN is 3 UNITS

2.

Find the distance of the point A ( 0, -3 ) from the origin.

Answer»

Step-by-step EXPLANATION:

the DISTANCE from ORIGIN is 3 UNITS

Discussion

3.	if the square pice of cloth is 9sq.m and we have to make 16 square shaped scarves then the length ofthe scarf is
Answer» let the side of square be x given area= 9sq.m so, x^2=9sq.m scarf MADE is 16 pieces area of SCARFS= 16.x^2=9sq.m x^2=9/16 x=root of 9/16 x=3/4m= 0.75m THEREFORE, the LENGTH of the scarf=3/4m=0.75m

3.

if the square pice of cloth is 9sq.m and we have to make 16 square shaped scarves then the length ofthe scarf is

Answer»

let the side of square be x

given area= 9sq.m

so,

x^2=9sq.m

scarf MADE is 16 pieces

area of SCARFS= 16.x^2=9sq.m

x^2=9/16

x=root of 9/16

x=3/4m= 0.75m

THEREFORE, the LENGTH of the scarf=3/4m=0.75m

Discussion

4.	रुपए 2400 का 10% वार्षिक दर से 2 वर्ष 4 माह के लिए चक्रवृद्धि ब्याज ज्ञात कीजिए
Answer» Step-by-step EXPLANATION: *Principal* :2400 Rate:10% Time: 28 months(2 years 4 MONTH) Amount**: P×R×T 100 2400×10×28 100 24×10×28 240×28 6720

4.

रुपए 2400 का 10% वार्षिक दर से 2 वर्ष 4 माह के लिए चक्रवृद्धि ब्याज ज्ञात कीजिए

Answer»

Step-by-step EXPLANATION:

Principal :2400

Rate:10%

Time: 28 months(2 years 4 MONTH)

Amount: P×R×T

100

2400×10×28

100

24×10×28

240×28

6720

Discussion

5.	What is angle sum property of quadriltrel
Answer» Answer: Step-by-step explanation: ACCORDING to the angle sum property of a Quadrilateral, the sum of all the four INTERIOR angles is 360 degrees. Proof: In the quadrilateral ABCD, ∠ABC, ∠BCD, ∠CDA, and ∠DAB are the internal angles. AC is a diagonal. Hope it HELPS you.

5.

What is angle sum property of quadriltrel

Answer»

Answer:

Step-by-step explanation:

ACCORDING to the angle sum property of a Quadrilateral, the sum of all the four INTERIOR angles is 360 degrees. Proof: In the quadrilateral ABCD, ∠ABC, ∠BCD, ∠CDA, and ∠DAB are the internal angles. AC is a diagonal.

Hope it HELPS you.

Discussion

6.	Pls explain and solve and ans me
Answer» Answer: 22 SQUARES......... MARK me as BRAINLIEST PLEASE.....

6.

Pls explain and solve and ans me

Answer»

Answer:

22 SQUARES.........

MARK me as BRAINLIEST PLEASE.....

Discussion

7.	Diameter of a circle is 46 cm.find the area
Answer» ANSWER: hi hope this helps you Step-by-step explanation: diameter=46 radius=diameter/2=46/2=23 area of circle=pi r^2 22/72323=1662.57 cm plz like if helpful and also MARK as BRAINLIEST

7.

Diameter of a circle is 46 cm.find the area

Answer»

ANSWER:

hi hope this helps you

Step-by-step explanation:

diameter=46

radius=diameter/2=46/2=23

area of circle=pi r^2

22/7*23*23=1662.57 cm

plz like if helpful and also MARK as BRAINLIEST

Discussion

8.	Fill in the table with whole numbers to make 10.74 in two different ways.I don't know the question so please help ASAP!
Answer» ANSWER: I THINK the answer of this QUESTION is 8

8.

Fill in the table with whole numbers to make 10.74 in two different ways.I don't know the question so please help ASAP!

Answer»

ANSWER:

I THINK the answer of this QUESTION is 8

Discussion

9.	0.15Subtraction of 2+5 and 3 is
Answer» SUBTRACT a and B,,,, a-b 2+5=7 subtract 7, and 3 7-3 4

9.

0.15Subtraction of 2+5 and 3 is

Answer»

SUBTRACT a and B,,,,

a-b

2+5=7

subtract 7, and 3

7-3

4

Discussion

10.	(a) 16(b) 4(c) 1pls fast
Answer» ANSWER: (B) 4 is the CORRECT answer

10.

(a) 16(b) 4(c) 1pls fast

Answer»

ANSWER:

(B) 4 is the CORRECT answer

Discussion

11.	1/x+1/x+5=9/100 anyone knows the answer to this?
Answer» 1/x + 1/x + 5 = 9/100 (1 + 1 +5x ) / x = 9/100 (2 + 5x) /x = 9/100 2 + 5x = 9x / 100 (2 + 5x ) 100 = 9x 200 + 500x = 9x 200 = 9x - 500 x 200 = -491 x 200 /- 491 = x. *hope this HELPS U...!! follo*w me...!!

11.

1/x+1/x+5=9/100 anyone knows the answer to this?

Answer»

1/x + 1/x + 5 = 9/100

(1 + 1 +5x ) / x = 9/100

(2 + 5x) /x = 9/100

2 + 5x = 9x / 100

(2 + 5x ) 100 = 9x

200 + 500x = 9x

200 = 9x - 500 x

200 = -491 x

200 /- 491 = x.

hope this HELPS U...!!

follow me...!!

Discussion

12.	P(X) =x 8 X² minus kx + 3 as a factor (X - 3) close find the value of k
Answer» Answer: 8x^2-kx+3=P(x) As x-3 is FACTOR of P(x) Step-by-step EXPLANATION: P(3)=0 72-3k+3=0 3k=75 k=25 hope it HELPS u please MARK it as brainliest ANSWER and Don't FORGET to FOLLOW me..

12.

P(X) =x 8 X² minus kx + 3 as a factor (X - 3) close find the value of k

Answer»

Answer:

8x^2-kx+3=P(x)

As x-3 is FACTOR of P(x)

Step-by-step EXPLANATION:

P(3)=0

72-3k+3=0

3k=75

k=25

hope it HELPS u

please MARK it as brainliest ANSWER and Don't FORGET to FOLLOW me..

Discussion

13.	If the cost of 25/2 kg of Apples is₹625,find the cost of 1kg of apples.
Answer» Step-by-step explanation: 25/2 kg=12.5 kg The price of 12.5 kg of apples = Rs 625 Price of 1 kg of apples=625/12.5 =Rs50 The cost of 1 kg of apples is Rs50 .

13.

If the cost of 25/2 kg of Apples is₹625,find the cost of 1kg of apples.

Answer»

Step-by-step explanation:

25/2 kg=12.5 kg

The price of 12.5 kg of apples = Rs 625

Price of 1 kg of apples=625/12.5

=Rs50

The cost of 1 kg of apples is Rs50 .

Discussion

14.	If 12,08,06,04=18, 25,16,05,04=40 then 18,25,09,05=?
Answer» ANSWER: The answer is 39 Step-by-step explanation: 12,08,06,04=18 25,16,05,04=40 18,25,09,05=?=39

14.

If 12,08,06,04=18, 25,16,05,04=40 then 18,25,09,05=?

Answer»

ANSWER:

The answer is 39

Step-by-step explanation:

12,08,06,04=18

25,16,05,04=40

18,25,09,05=?=39

Discussion

15.	Find the quadratic polynomial whose zeros are 2 and -6.Verify the relation between the coefficient and the zeros of the polynomial
Answer» GIVEN: Zeroes of polynomial are 2 and -6 TO FIND: The QUADRATIC polynomial and verify relationship between coefficientand the zeroes SOLUTION: We know that, The standard form of quadratic polynomial is, x² - (sum of zeroes)x + product of zeroes Sum of zeroes = α + β = 2 + (-6) = -4 Product of zeroes = αβ = 2 × -6 = -12 => x² - (α+β)x - (αβ) => x² - (-4)x + (-12) => x² + 4x - 12 Thus, x² + 4x - 12 is the REQUIRED polynomial. VERIFICATION: Sum of zeroes = α + β = -b/a = -4/1 = -4 => α + β = -4 => -4 = -4 Product of zeroes = αβ = c/a = -12/1 = -12 => αβ = -12 => -12 = -12 Hence, verified!

15.

Find the quadratic polynomial whose zeros are 2 and -6.Verify the relation between the coefficient and the zeros of the polynomial

Answer»

GIVEN:

Zeroes of polynomial are 2 and -6

TO FIND:

The QUADRATIC polynomial and verify relationship between coefficientand the zeroes

SOLUTION:

We know that,

The standard form of quadratic polynomial is,

x² - (sum of zeroes)x + product of zeroes

Sum of zeroes = α + β = 2 + (-6) = -4

Product of zeroes = αβ = 2 × -6 = -12

=> x² - (α+β)x - (αβ)

=> x² - (-4)x + (-12)

=> x² + 4x - 12

Thus, x² + 4x - 12 is the REQUIRED polynomial.

VERIFICATION:

Sum of zeroes = α + β = -b/a = -4/1 = -4

=> α + β = -4

=> -4 = -4

Product of zeroes = αβ = c/a = -12/1 = -12

=> αβ = -12

=> -12 = -12

Hence, verified!

Discussion

16.	Fill in the table with whole numbers to make 10.74 in two different ways.I don't know the question so please help!
Answer» Given : Fill in the table with WHOLE NUMBERS to make 10.74 To find : two Different ways Solution: Tens ones . Tenths Hundredths 0 10 7 4 0 10 6 X 010 + 10 1 + 7/10 + 4/100 = 0 + 10 + 0.7 + 0.04 = 10.74 0 * 10 + 10 * 1 + 6/10 + X/100 = 10.74 => 0 + 10 + 0.6 + X/100 = 10.74 => 10.6 + X/100 = 10.74 => X/100 = 10.74 - 10.6 => X/100 = 0.14 => X = 100 (0.14) => X = 14 Few Different Ways : Tens ones . Tenths Hundredths 0 10 6 14 1 0 7 4 1 0 6 14 Learn more: One HUNDRED twenty five and four tenths,Write the decimal for it ... brainly.in/question/4866209 We add 10.864 and the number GOT by INTERCHANGING the digit in its ... brainly.in/question/13343861

16.

Fill in the table with whole numbers to make 10.74 in two different ways.I don't know the question so please help!

Answer»

Given : Fill in the table with WHOLE NUMBERS to make 10.74

To find : two Different ways

Solution:

Tens ones . Tenths Hundredths

0 10 7 4

0 10 6 X

0*10 + 10 * 1 + 7/10 + 4/100

= 0 + 10 + 0.7 + 0.04

= 10.74

0 * 10 + 10 * 1 + 6/10 + X/100 = 10.74

=> 0 + 10 + 0.6 + X/100 = 10.74

=> 10.6 + X/100 = 10.74

=> X/100 = 10.74 - 10.6

=> X/100 = 0.14

=> X = 100 (0.14)

=> X = 14

Few Different Ways :

Tens ones . Tenths Hundredths

0 10 6 14

1 0 7 4

1 0 6 14

Learn more:

One HUNDRED twenty five and four tenths,Write the decimal for it ...

brainly.in/question/4866209

We add 10.864 and the number GOT by INTERCHANGING the digit in its ...

brainly.in/question/13343861

Discussion

17.	Suman earns ₹24000 per month.she spends 2/5 of her salary for food and 1/6 of her salary for traveling.The rest of her salary she saves.Find Suman's savings per month.
Answer» ANSWER: let her total MONEY salary be 1 Money she spends = 1/3 Remaining salary = 1 - 1/3 = 2/3 Money she saves = 3/8 of remainder = 3/8 * 2/3 = 1/4 Money she spends on her family members = 1 - ( 1/3 + 1/4) = 1 - ( 4/12 + 3/12) = 1 - 7/12 = 5/12 So, 5/12 of her salary is spent evenly AMONG her 3 family members So, each of them gets 1/3 of 5/12 of her salary So, our FRACTION is 1/3 * 5/12 Fraction= 5/36 Read more on Brainly.in - brainly.in/question/3598137#readmore Step-by-step explanation:

17.

Suman earns ₹24000 per month.she spends 2/5 of her salary for food and 1/6 of her salary for traveling.The rest of her salary she saves.Find Suman's savings per month.

Answer»

ANSWER:

let her total MONEY salary be 1

Money she spends = 1/3

Remaining salary = 1 - 1/3 = 2/3

Money she saves = 3/8 of remainder = 3/8 * 2/3 = 1/4

Money she spends on her family members = 1 - ( 1/3 + 1/4)

= 1 - ( 4/12 + 3/12)

= 1 - 7/12 = 5/12

So, 5/12 of her salary is spent evenly AMONG her 3 family members

So, each of them gets 1/3 of 5/12 of her salary

So, our FRACTION is

1/3 * 5/12

Fraction= 5/36

Read more on Brainly.in - brainly.in/question/3598137#readmore

Step-by-step explanation:

Discussion

18.	Divide P(x) =2x³+x²+10x-8 by g(x) = x+1
Answer» $\text{[math]}$ $\huge \mathbb {ANSWER:}$ $\small \mathfrak {g(x) = x + 1 = 0} \\ \small \mathfrak {g(x) = x = - 1}$ $\small \mathfrak {p(x) = {2x}^{3} + {x}^{2} + 10x - 8}$ $\small \mathfrak {p( -1 ) = 2 {( - 1)}^{3} + {( - 1)}^{2} + 10( - 1) - 8}$ $\small \mathfrak {p( - 1) = - 2 + 1 - 10 - 8}$ $\small \mathfrak {p( - 1) = - 1 - 10 - 8 = - 19}$ $\large \bf {FOLLOW \: ME \: PLZ}$

18.

Divide P(x) =2x³+x²+10x-8 by g(x) = x+1

Answer»

$\text{[math]}$

$\huge \mathbb {ANSWER:}$

$\small \mathfrak {g(x) = x + 1 = 0} \\ \small \mathfrak {g(x) = x = - 1}$

$\small \mathfrak {p(x) = {2x}^{3} + {x}^{2} + 10x - 8}$

$\small \mathfrak {p( -1 ) = 2 {( - 1)}^{3} + {( - 1)}^{2} + 10( - 1) - 8}$

$\small \mathfrak {p( - 1) = - 2 + 1 - 10 - 8}$

$\small \mathfrak {p( - 1) = - 1 - 10 - 8 = - 19}$

$\large \bf {FOLLOW \: ME \: PLZ}$

Discussion

19.	1.Find the point which divide the line segment joining the points (1.-3).(-3.9) in the ratio 1:3externally
Answer» Answer: SOLUTION, m1:m2 = 1:3 Now, Using formula of section division externally (X,y)={(m1x2-m2x1)/m1-m2 ,m1y2-m2y1)/m1-m2} = {(-3-3)/-2),(9+9)/-2} =(3,-9) Therefore (3,-9) divides the line in the GIVEN condition. If I am wrong please COMMENT and rate my answer.

19.

1.Find the point which divide the line segment joining the points (1.-3).(-3.9) in the ratio 1:3externally

Answer»

Answer:

SOLUTION,

m1:m2 = 1:3

Now, Using formula of section division externally

(X,y)={(m1x2-m2x1)/m1-m2 ,m1y2-m2y1)/m1-m2}

= {(-3-3)/-2),(9+9)/-2}

=(3,-9)

Therefore (3,-9) divides the line in the GIVEN condition.

If I am wrong please COMMENT and rate my answer.

Discussion

20.	What is the coefficeint of -2
Answer» Your question is INCOMPLETE..... -2 is a constant and not a COEFFICIENT... Coefficient is a no. before a variable. For EXAMPLE, in d equation 4x - 4x^2 - 2, coefficient of x is 4 and x^2 is -4 PLS MARK AS BRAINLIEST N FOLLOW ME...

20.

What is the coefficeint of -2

Answer»

Your question is INCOMPLETE.....

-2 is a constant and not a COEFFICIENT...

Coefficient is a no. before a variable. For EXAMPLE, in d equation 4x - 4x^2 - 2,

coefficient of x is 4 and x^2 is -4

PLS MARK AS BRAINLIEST N FOLLOW ME...

Discussion

21.	Prove that...............
Answer» ANSWER: i cant Step-by-step EXPLANATION:

21.

Prove that...............

Answer»

ANSWER:

i cant

Step-by-step EXPLANATION:

Discussion

22.	of initial velocity of an object in 20 km per hour at attains 5okm per hour in 5 minutes calculation distance and acceleration in 5 minutes
Answer» ANSWER: Step-by-step EXPLANATION: FUNNY GUY

22.

of initial velocity of an object in 20 km per hour at attains 5okm per hour in 5 minutes calculation distance and acceleration in 5 minutes

Answer»

ANSWER:

Step-by-step EXPLANATION:

FUNNY GUY

Discussion

23.	17 ,22,27,33....the sum of first 20 tearm the siries is
Answer» Sn= $\frac{n}{2} (2a + (n - 1)d$ this is the FORMULAE for finding SUM of series in ap 17,22,27,32 22-17= 5 27-22= 5 (it should be 32 ,,not 33) common difference d=5 n=20, n/2= 20/2 = 10 a= 17 S 20 = 10(2(17)+19×5) 10(34+95) 10×129 1290

23.

17 ,22,27,33....the sum of first 20 tearm the siries is

Answer»

Sn=

$\frac{n}{2} (2a + (n - 1)d$

this is the FORMULAE for finding SUM of series in ap

17,22,27,32

22-17= 5

27-22= 5

(it should be 32 ,,not 33)

common difference d=5

n=20,

n/2= 20/2 = 10

a= 17

S 20 = 10(2(17)+19×5)

10(34+95)

10×129

1290

Discussion

24.	If √x is an irrational number then x is(a) Rational(b) Irrational( c) Real
Answer» ANSWER: hi hope this HELPS you Step-by-step explanation: the CORRECT answer is c) real number as real numbers are collection of rational and irrational numbers plzz press THANKS button and brainliest if truly helpful yhank you very much

24.

If √x is an irrational number then x is(a) Rational(b) Irrational( c) Real

Answer»

ANSWER:

hi hope this HELPS you

Step-by-step explanation:

the CORRECT answer is c) real number

as real numbers are collection of rational and irrational numbers

plzz press THANKS button and brainliest if truly helpful

yhank you very much

Discussion

25.	WRohit is reading a novel having 286 pages. He read 3/11 of the novel in the first weekand 5/8 of the rest part in the second week. How many pages of the novel are still leftto be read?
Answer» $\text{[math]}$ ${\orange{\bf{\underline{\underline{\bigstar\:\: Solution : \:\:\bigstar}}}}}\\$ $\text{[math]}$ Let, the no. of PAGES LEFT be X $\text{[math]}$ total pages in the novel = 286 pages 3/11 + 5/8 + x = 286 pages 24 + 55/88 + x = 286 pages 79/88 + x = 286 pages x = 286/1 - 79/88 pages x = 25,168 - 79/88 x = 25,089/88 x = 285 pages $\text{[math]}$ 285 *pages* *were* *left* in *novel*. ${\green{\bf{\underline{\underline{\bigstar\:\: Answer : 285\: pages \:\:\bigstar}}}}}\\$

25.

WRohit is reading a novel having 286 pages. He read 3/11 of the novel in the first weekand 5/8 of the rest part in the second week. How many pages of the novel are still leftto be read?

Answer»

$\text{[math]}$

${\orange{\bf{\underline{\underline{\bigstar\:\: Solution : \:\:\bigstar}}}}}\\$

$\text{[math]}$

Let, the no. of PAGES LEFT be X

$\text{[math]}$

total pages in the novel = 286 pages

3/11 + 5/8 + x = 286 pages

24 + 55/88 + x = 286 pages

79/88 + x = 286 pages

x = 286/1 - 79/88 pages

x = 25,168 - 79/88

x = 25,089/88

x = 285 pages

$\text{[math]}$

285 pages were left in novel.

${\green{\bf{\underline{\underline{\bigstar\:\: Answer : 285\: pages \:\:\bigstar}}}}}\\$

Discussion

26.	(a) 3.146(b) 0.318( c ) 1/3.146pls Help me
Answer» Answer: HEY DUDE ...PLEASE *mark* my *answer* *BRAINLIEST* Step-by-step explanation: I am sending the photo solution.....

26.

(a) 3.146(b) 0.318( c ) 1/3.146pls Help me

Answer»

Answer:

HEY DUDE ...PLEASE mark my answer BRAINLIEST

Step-by-step explanation:

I am sending the photo solution.....

Discussion

27.	Choose the correct option for the following:i) A square pyramid has ____ edges
Answer» Answer: 8 is the answer Step-by-step EXPLANATION: HOPE it is helpful Mark as BRAINLIEST!!!!!!!

27.

Choose the correct option for the following:i) A square pyramid has ____ edges

Answer»

Answer:

8 is the answer

Step-by-step EXPLANATION:

HOPE it is helpful

Mark as BRAINLIEST!!!!!!!

Discussion

28.	Find the distance between the point A (9,-7) and the origin.
Answer» Step-by-step EXPLANATION: HOPE it helps u, mark as BRAIN least

28.

Find the distance between the point A (9,-7) and the origin.

Answer»

Step-by-step EXPLANATION:

HOPE it helps u, mark as BRAIN least

Discussion

29.	Product of (t+x^2)(t^2+x)
Answer» Hope it will help U... THANKS for asking... Happy to help u..... and keep SMILING always.. things will be with u 4ever.... GOOD DAY AHEAD....TAKE CARE...

29.

Product of (t+x^2)(t^2+x)

Answer»

Hope it will help U...

THANKS for asking...

Happy to help u.....

and keep SMILING always..

things will be with u 4ever....

GOOD DAY AHEAD....TAKE CARE...

Discussion

30.	Fill in the table with whole numbers to make 10.74 in two different ways. I need help ASAP!
Answer» Given : Fill in the table with whole numbers to make 10.74 To find : two Different WAYS Solution: Tens ones . Tenths Hundredths 0 10 7 4 0 10 6 X 010 + 10 1 + 7/10 + 4/100 = 0 + 10 + 0.7 + 0.04 = 10.74 0 * 10 + 10 * 1 + 6/10 + X/100 = 10.74 => 0 + 10 + 0.6 + X/100 = 10.74 => 10.6 + X/100 = 10.74 => X/100 = 10.74 - 10.6 => X/100 = 0.14 => X = 100 (0.14) => X = 14 Tens ones . Tenths Hundredths 0 10 6 14 1 0 7 4 1 0 6 14 Learn more: ONE hundred twenty five and four tenths,Write the decimal for it ... brainly.in/question/4866209 We add 10.864 and the number got by interchanging the digit in its ... brainly.in/question/13343861

30.

Fill in the table with whole numbers to make 10.74 in two different ways. I need help ASAP!

Answer»

Given : Fill in the table with whole numbers to make 10.74

To find : two Different WAYS

Solution:

Tens ones . Tenths Hundredths

0 10 7 4

0 10 6 X

0*10 + 10 * 1 + 7/10 + 4/100

= 0 + 10 + 0.7 + 0.04

= 10.74

0 * 10 + 10 * 1 + 6/10 + X/100 = 10.74

=> 0 + 10 + 0.6 + X/100 = 10.74

=> 10.6 + X/100 = 10.74

=> X/100 = 10.74 - 10.6

=> X/100 = 0.14

=> X = 100 (0.14)

=> X = 14

Tens ones . Tenths Hundredths

0 10 6 14

1 0 7 4

1 0 6 14

Learn more:

ONE hundred twenty five and four tenths,Write the decimal for it ...

brainly.in/question/4866209

We add 10.864 and the number got by interchanging the digit in its ...

brainly.in/question/13343861

Discussion

31.	X^2+2+1/x^2=0 whats the answer?
Answer» ANSWER: I don't KNOW.........

31.

X^2+2+1/x^2=0 whats the answer?

Answer»

ANSWER:

I don't KNOW.........

Discussion

32.	Surface area of cube and sphere are qual, find the ratios of their volumes
Answer» Step-by-step EXPLANATION: S.A.OF CUBE = S.A.of sphere 4πr² = 6a² 2πr²= 3a² a²=2πr²/3 a = r√2π/3 therfore, V1 /V2 = 4/3πR³/a³ 1 /√π/6 1:6π

32.

Surface area of cube and sphere are qual, find the ratios of their volumes

Answer»

Step-by-step EXPLANATION: S.A.OF CUBE = S.A.of sphere

4πr² = 6a²

2πr²= 3a²

a²=2πr²/3

a = r√2π/3

therfore,

V1 /V2 = 4/3πR³/a³

1 /√π/6

1:6π

Discussion

33.	I need to by 100 pensfrom 100Rs givenCost of Blue pen: 0.50Cost of Red pen : 5.50cost of Green pen: 9.50
Answer» Given : Cost of Blue pen: 0.50 , Cost of RED pen : 5.50 , cost of Green pen: 9.50 To FIND : buy 100 Pens from 100 Rs Solution: Cost of Blue pen: 0.50 Cost of Red pen : 5.50 cost of Green pen: 9.50 Let say Red Pen = R & Green Pen = G Blue Pen = 100 - G - R 5.5R + 9.5G + (100 - G - R)/2 = 100 => 11R + 19G + 100 - G - R = 200 => 10R + 18G = 100 => 5R + 9G = 50 => 9G = 50 - 5R => 9G = 5(10 - R) G = 5 & R = 1 => Blue Pen = 100 - 5 - 1 = 94 Green Pens = 5 5 * 9.5 = 47.5 Red Pens = 1 1 * 5.5 = 5.5 Blue Pen = 94 94 * 0.5 = 47 TOTAL 100 100 5 Green Pens , 1 red Pen & 10 Blue Pens Learn more: Solve ProblemYou are in the fair, You have to buy some animals ... brainly.in/question/16656025 1 रुपयात 40 कासव 3 रुपयात 1 मांजर 5 रुपयात 1 वाघ तर ... brainly.in/question/11814368

33.

I need to by 100 pensfrom 100Rs givenCost of Blue pen: 0.50Cost of Red pen : 5.50cost of Green pen: 9.50

Answer»

Given : Cost of Blue pen: 0.50 , Cost of RED pen : 5.50 , cost of Green pen: 9.50

To FIND : buy 100 Pens from 100 Rs

Solution:

Cost of Blue pen: 0.50

Cost of Red pen : 5.50

cost of Green pen: 9.50

Let say Red Pen = R

& Green Pen = G

Blue Pen = 100 - G - R

5.5R + 9.5G + (100 - G - R)/2 = 100

=> 11R + 19G + 100 - G - R = 200

=> 10R + 18G = 100

=> 5R + 9G = 50

=> 9G = 50 - 5R

=> 9G = 5(10 - R)

G = 5 & R = 1

=> Blue Pen = 100 - 5 - 1 = 94

Green Pens = 5 5 * 9.5 = 47.5

Red Pens = 1 1 * 5.5 = 5.5

Blue Pen = 94 94 * 0.5 = 47

TOTAL 100 100

5 Green Pens , 1 red Pen & 10 Blue Pens

Learn more:

Solve ProblemYou are in the fair, You have to buy some animals ...

brainly.in/question/16656025

1 रुपयात 40 कासव 3 रुपयात 1 मांजर 5 रुपयात 1 वाघ तर ...

brainly.in/question/11814368

Discussion

34.	...... factoring x^3-8.....
Answer» X 3 −8 x^3-2^3 x 3−2 3 (x-2)(x^2+2x+2^2) (x−2)(x 2 +2x+2 2 ) (x-2)(x^2+2x+4) (x−2)(x 2 +2x+4)

34.

...... factoring x^3-8.....

Answer»

X 3 −8

x^3-2^3

x 3−2 3

(x-2)(x^2+2x+2^2)

(x−2)(x 2 +2x+2 2 )

(x-2)(x^2+2x+4)

(x−2)(x 2 +2x+4)

Discussion

35.	Choose the correct option for the following:i) A square pyramid has ____ edg
Answer» Answer: 8 Step-by-step EXPLANATION: A SQUARE PYRAMID has 8 EDGE...

35.

Choose the correct option for the following:i) A square pyramid has ____ edg

Answer»

Answer:

8

Step-by-step EXPLANATION:

A SQUARE PYRAMID has 8 EDGE...

Discussion

36.	A man lost rs1500 in one transaction and gained rs1200 in another. what was his net profit or loss.
Answer» Answer: RS. 300 loss. I THINK so. If it is wrong please COMMENT me.

36.

A man lost rs1500 in one transaction and gained rs1200 in another. what was his net profit or loss.

Answer»

Answer:

RS. 300 loss. I THINK so. If it is wrong please COMMENT me.

Discussion

37.	(2+√3+√5) is a ______ number
Answer» Answer: hi gargeya Step-by-step EXPLANATION: it is an IRRATIONAL number plzmark as brainliest if TRULY helpful thank you

37.

(2+√3+√5) is a ______ number

Answer»

Answer:

hi gargeya

Step-by-step EXPLANATION:

it is an IRRATIONAL number

plzmark as brainliest if TRULY helpful

thank you

Discussion

38.	Lim 1^2+2^2+3^2+.........n^2 /n^3 n€Nn-->infinitySolve fast....plsDon't spma.....I will mark as brainliest....
Answer» ANSWER: ${\large{\overbrace{\underbrace{\purple{your \: \: answer: \frac{1}{3} }}}}} \\ \\ ♡ dear ----$ Step-by-step EXPLANATION: $\bf\red{ {1}^{2} + {2}^{2} + {3}^{2} + ........ {n}^{2} } \\ \\ \bf\red{ \underline{principle \: of \: mathematical \: induction \implies \frac{n(n + 1)(2n + 1)}{6} }} \\ \\ \bf\ lim \: \frac{ {1}^{2} + {2}^{2} + {3}^{2} + ............ + {n}^{2} }{ {n}^{3} } \: \: \: \: \: (n \: belongs \: to \: N) \\ n\mapsto \infty \\ \\ \bf\ \implies \: lim \frac{n(n + 1)(2n + 1)}{6 {n}^{3} } \\ n \mapsto \infty \\ \\ \bf\ \implies \: \frac{1}{6} \: lim( \frac{n + 1}{n} )( \frac{2n + 1}{n} ) \\ n \mapsto \infty \\ \\ \bf\ \implies \frac{1}{6} \: lim[(1 + \frac{1}{n} )(2 + \frac{1}{n})] \\ n \mapsto \infty \\ \\ \bf\ \implies \frac{1}{6} (1 + 0)(2 + 0) \: \: \: \: \: \: \: \: \bf\underline{ [\therefore \: n \mapsto \infty \: \: \: \frac{1}{n} \mapsto0] }\\ \\ \bf\boxed{ \bigstar \implies \frac{1}{3} \: \: \bigstar } \\ \\ \\$ $\large\boxed{ \fcolorbox{red}{pink}{hope \: it \: help \: you}}$

38.

Lim 1^2+2^2+3^2+.........n^2 /n^3 n€Nn-->infinitySolve fast....plsDon't spma.....I will mark as brainliest....

Answer»

ANSWER:

${\large{\overbrace{\underbrace{\purple{your \: \: answer: \frac{1}{3} }}}}} \\ \\ ♡ dear *----*$

Step-by-step EXPLANATION:

$\bf\red{ {1}^{2} + {2}^{2} + {3}^{2} + ........ {n}^{2} } \\ \\ \bf\red{ \underline{principle \: of \: mathematical \: induction \implies \frac{n(n + 1)(2n + 1)}{6} }} \\ \\ \bf\ lim \: \frac{ {1}^{2} + {2}^{2} + {3}^{2} + ............ + {n}^{2} }{ {n}^{3} } \: \: \: \: \: (n \: belongs \: to \: N) \\ n\mapsto \infty \\ \\ \bf\ \implies \: lim \frac{n(n + 1)(2n + 1)}{6 {n}^{3} } \\ n \mapsto \infty \\ \\ \bf\ \implies \: \frac{1}{6} \: lim( \frac{n + 1}{n} )( \frac{2n + 1}{n} ) \\ n \mapsto \infty \\ \\ \bf\ \implies \frac{1}{6} \: lim[(1 + \frac{1}{n} )(2 + \frac{1}{n})] \\ n \mapsto \infty \\ \\ \bf\ \implies \frac{1}{6} (1 + 0)(2 + 0) \: \: \: \: \: \: \: \: \bf\underline{ [\therefore \: n \mapsto \infty \: \: \: \frac{1}{n} \mapsto0] }\\ \\ \bf\boxed{ \bigstar \implies \frac{1}{3} \: \: \bigstar } \\ \\ \\$

$\large\boxed{ \fcolorbox{red}{pink}{hope \: it \: help \: you}}$

Discussion

39.	A swimming pool is 25 m long and 12 m wide. A single 4 m wide lane is roped off. Ismaeel swims in the 4 m wide lane. Swimming twolengths of the pool counts as one lap for Ismaeel.Kosha swims on the other side of the roped off lane,in the larger rectangular portion of the pool. A lapfor Kosha consists of swimming once around a circuitthat is 1/2 m away from each edge and 1/2 m away from the rope divider.a) How much longer is Kosha’s lap than Ismaeel’slap?b) Ismaeel and Kosha each complete ten laps.Determine how much farther than Ismaeel thatKosha swam.
Answer» Given : Length of swimming pool = 25m Width of swimming pool = 12m Width of roped off lane = 4m To Find : a) How much longer the lap of Kosha compared to ISMAEEL. b) How much far did Ismaeel swam compared to Kosha. Solution : a) The large RECTANGULAR PART of the pool is 12−4 = 8 m wide. Since Kosha swims $\frac{1}{2}$ m from the ‘edges’, Kosha swims around a rectangle that is 8− 1 2 − 1 2 = 7 m wide and 25− 1 2 − 1 2 = 24 m long. The total distance Kosha swims in one lap is 24 + 7 + 24 + 7 = 62m. Ismaeel swims 25 + 25 = 50m in two lengths, or one lap. Thus Kosha’s lap is 62−50 = 12m longer than Ismaeel’s lap. b) In ten LAPS, Kosha swims 10×62 = 620m while , Ismaeel swims 10×50 = 500M. So Kosha swims 620−500 = 120m further. Alternatively: Since in each lap Kosha swims 12m further, in 10 laps she swims 10×12 = 120m further.

39.

A swimming pool is 25 m long and 12 m wide. A single 4 m wide lane is roped off. Ismaeel swims in the 4 m wide lane. Swimming twolengths of the pool counts as one lap for Ismaeel.Kosha swims on the other side of the roped off lane,in the larger rectangular portion of the pool. A lapfor Kosha consists of swimming once around a circuitthat is 1/2 m away from each edge and 1/2 m away from the rope divider.a) How much longer is Kosha’s lap than Ismaeel’slap?b) Ismaeel and Kosha each complete ten laps.Determine how much farther than Ismaeel thatKosha swam.

Answer»

Given :

Length of swimming pool = 25m

Width of swimming pool = 12m

Width of roped off lane = 4m

To Find :

a) How much longer the lap of Kosha compared to ISMAEEL.

b) How much far did Ismaeel swam compared to Kosha.

Solution :

a)

The large RECTANGULAR PART of the pool is 12−4 = 8 m wide.

Since Kosha swims $\frac{1}{2}$ m from the ‘edges’, Kosha swims around a rectangle that is

8− 1 2 − 1 2 = 7 m wide

and

25− 1 2 − 1 2 = 24 m long.

The total distance Kosha swims in one lap is

24 + 7 + 24 + 7 = 62m.

Ismaeel swims 25 + 25 = 50m in two lengths, or one lap.

Thus Kosha’s lap is 62−50 = 12m longer than Ismaeel’s lap.

b)

In ten LAPS, Kosha swims

10×62 = 620m

while ,

Ismaeel swims

10×50 = 500M.

So Kosha swims

620−500 = 120m further.

Alternatively:

Since in each lap Kosha swims 12m further, in 10 laps

she swims 10×12 = 120m further.

Discussion

40.	Write the following given equation in the form ofof ax + by tc=0 and indicate the value of a ,b and, c-8x+4=y
Answer» Step-by-step EXPLANATION: -8x-y +4 = 0 a=-8,B= -1 ,c = 4 mark as brainlist

40.

Write the following given equation in the form ofof ax + by tc=0 and indicate the value of a ,b and, c-8x+4=y

Answer»

Step-by-step EXPLANATION:

-8x-y +4 = 0

a=-8,B= -1 ,c = 4

mark as brainlist

Discussion

41.	Sin theta+cosec theta=2 then find the value of sin^(2014)theta-cosec^(2013)theta
Answer» Step-by-step explanation: here is URS ANSWER THANKS I hope it's right

41.

Sin theta+cosec theta=2 then find the value of sin^(2014)theta-cosec^(2013)theta

Answer»

Step-by-step explanation:

here is URS ANSWER THANKS I hope it's right

Discussion

42.	The least number which should be added with 91 to get a perfect square is
Answer» Answer: the answer is 9 ,HOPE it HELPS u mark as BRAIN least

42.

The least number which should be added with 91 to get a perfect square is

Answer»

Answer:

the answer is 9 ,HOPE it HELPS u mark as BRAIN least

Discussion

43.	Insert commas in 8653
Answer» Answer: 8653 >> 8,653 its same for both imdian and internatiomal SYSTEM PLS MARK as branliets

43.

Insert commas in 8653

Answer»

Answer:

8653 >> 8,653

its same for both imdian and internatiomal SYSTEM PLS MARK as branliets

Discussion

44.	2. The number of marbles with A and B are in the ratio of10:11. Which of the following cannot be a possiblenumber of marbles with A and B together?(A) 189 (B) 210 (C) 231 (D) 153
Answer» Given: The number of marbles with $A$ and $B$ are in the RATIO $10:11$ To FIND: Among the given options which cannot be a possible number of marbles with $A$ and $B$ TOGETHER. Solution: Let number of marbles with $A$ is $10k$ and number of marbles with $B$ is $11k$ , where $k$ is any natural number. ∴Number of marbles with $A$ and $B$ together is $10k+11k=21k$ . Hence, number of marbles with $A$ and $B$ together should be multiple of $21$ . From the given options, the only option which is not multiple of $21$ is option $(D) 153$ , rest all are multiple of Hence, option $(D) 153$ cannot be a possible number of marbles with $A$ and $B$ together.

44.

2. The number of marbles with A and B are in the ratio of10:11. Which of the following cannot be a possiblenumber of marbles with A and B together?(A) 189 (B) 210 (C) 231 (D) 153

Answer»

Given:

The number of marbles with $A$ and $B$ are in the RATIO $10:11$

To FIND:

Among the given options which cannot be a possible number of marbles with $A$ and $B$ TOGETHER.

Solution:

Let number of marbles with $A$ is $10k$ and number of marbles with $B$ is $11k$ , where $k$ is any natural number.

∴Number of marbles with $A$ and $B$ together is $10k+11k=21k$ .

Hence, number of marbles with $A$ and $B$ together should be multiple of $21$ .

From the given options, the only option which is not multiple of $21$ is option $(D) 153$ , rest all are multiple of

Hence, option $(D) 153$ cannot be a possible number of marbles with $A$ and $B$ together.

Discussion

45.	2) The vertices of a parallelogram ABCD are A(-2,2), B(-1,6), C(6,4) andD(5,1). Find the coordinates of the points of intersection of its diagonal.
Answer» ANSWER: PLEASE MARK as BRAINLIST answer and FOLLOW me....

45.

2) The vertices of a parallelogram ABCD are A(-2,2), B(-1,6), C(6,4) andD(5,1). Find the coordinates of the points of intersection of its diagonal.

Answer»

ANSWER:

PLEASE MARK as BRAINLIST answer and FOLLOW me....

Discussion

46.	++=60 ,++=30,-=3,+×?
Answer» Step-by-step explanation: 30+30=60, 15+15=30 I don't KNOW the ANSWER

46.

++=60 ,++=30,-=3,+×?

Answer»

Step-by-step explanation:

30+30=60, 15+15=30

I don't KNOW the ANSWER

Discussion

47.	The decimal expansion of √2 is –(a) 1.4121(b) non – terminating not repeating(c) non – terminating repeating
Answer» ANSWER: The DECIMAL EXPANSION of √2 is (C) non-terminating and not repeating FOLLOW ME PLZ

47.

The decimal expansion of √2 is –(a) 1.4121(b) non – terminating not repeating(c) non – terminating repeating

Answer»

ANSWER:

The DECIMAL EXPANSION of √2 is (C) non-terminating and not repeating

FOLLOW ME PLZ

Discussion

48.	A sphere, a cylinder and a cone are of the same radius and same height. Find the ratio of theirC.S.A’s.
Answer» Step-by-step explanation: 4πrh/2πrh/⅓πrh 2/⅓πrh 231/πrh 6/πrh

48.

A sphere, a cylinder and a cone are of the same radius and same height. Find the ratio of theirC.S.A’s.

Answer»

Step-by-step explanation:

4πrh/2πrh/⅓πrh

2/⅓πrh

2*3*1/πrh

6/πrh

Discussion

49.	If the quadratic equation (1 + m square ) x square plus 2 m c x + c square minus a square equals to zero has equal roots prove that c square equals to a square (1+msquare)
Answer» Step-by-step EXPLANATION: (1 + m2)x2 + 2 mcx + c2 - a2 = 0 has equal ROOTS ⇒ b2 - 4ac = 0 ⇒ (2 MC)2 - 4(1 + m2)(c2 - a2) = 0 ⇒ 4m2c2 - 4(c2 - a2 + m2c2 - m2a2) = 0 ⇒ 4m2c2 - 4c2 + 4a2 - 4m2c2 + 4m2a2 = 0 ⇒ 4m2a2 - 4c2 + 4a2 = 0 ⇒ m2a2 - c2 + a2 = 0 ⇒ a2(1 + m2) - c2 = 0 ⇒ c2 = a2(1 + m2) Hence PROVED.

49.

If the quadratic equation (1 + m square ) x square plus 2 m c x + c square minus a square equals to zero has equal roots prove that c square equals to a square (1+msquare)

Answer»

Step-by-step EXPLANATION:

(1 + m2)x2 + 2 mcx + c2 - a2 = 0 has equal ROOTS ⇒ b2 - 4ac = 0 ⇒ (2 MC)2 - 4(1 + m2)(c2 - a2) = 0 ⇒ 4m2c2 - 4(c2 - a2 + m2c2 - m2a2) = 0 ⇒ 4m2c2 - 4c2 + 4a2 - 4m2c2 + 4m2a2 = 0 ⇒ 4m2a2 - 4c2 + 4a2 = 0 ⇒ m2a2 - c2 + a2 = 0 ⇒ a2(1 + m2) - c2 = 0 ⇒ c2 = a2(1 + m2) Hence PROVED.

Discussion

50.	Factorise x3- 27 answer pls maths
Answer» ANSWER: => x³ - 27 = 0 => x³ = 27 => x = 3

50.

Factorise x3- 27 answer pls maths

Answer»

ANSWER:

=> x³ - 27 = 0

=> x³ = 27

=> x = 3

Discussion

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FOLLOW ME PLZ

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Divide P(x) =2x³+x²+10x-8 by g(x) = x+1

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