332354 + Interview Questions in Secondary School in Math

1.	Sameera bought a jacket for 752 and pair of shoes 824 estimate the cost of she paid the shopkeeper
Answer» Step-by-step explanation: sameera bought a JACKET of RATE = 752 and pair of SHOES = 824 total cost = 752 + 824 = 1576

1.

Sameera bought a jacket for 752 and pair of shoes 824 estimate the cost of she paid the shopkeeper

Answer»

Step-by-step explanation:

sameera bought a JACKET of RATE = 752

and pair of SHOES = 824

total cost = 752 + 824 = 1576

Discussion

2.	In an A.P the sum of the three terms is 24, and their is 480, write the three terms of A.P .
Answer» $\bold\pink{\fbox{\sf{Solution}}}$ Let the numbers be a-d, a and a+d According to first condition, a - d + a + a + d = 24 => 3A = 24 => a = 8 According to second condition, ( a - d) (a) (a +d) = 504 => a ( a^2 - d^2) = 504 => 8 [ (8)^2 - (d)^2] = 504 => 64 - d^2 = 63 => d^2 = 1 => d = 1 First NUMBER = 8 - 1 = 7 Second number = 8 Third number = 8 +1 = 9 $\bold\pink{\fbox{\sf{Thanks (◠‿・)—☆}}}$

2.

In an A.P the sum of the three terms is 24, and their is 480, write the three terms of A.P .

Answer»

$\bold\pink{\fbox{\sf{Solution}}}$

Let the numbers be a-d, a and a+d

According to first condition,

a - d + a + a + d = 24

=> 3A = 24

=> a = 8

According to second condition,

( a - d) (a) (a +d) = 504

=> a ( a^2 - d^2) = 504

=> 8 [ (8)^2 - (d)^2] = 504

=> 64 - d^2 = 63

=> d^2 = 1

=> d = 1

First NUMBER = 8 - 1 = 7

Second number = 8

Third number = 8 +1 = 9

$\bold\pink{\fbox{\sf{Thanks (◠‿・)—☆}}}$

Discussion

3.	Prove 1 minus tan square A by cot square A minus 1 is equal to tan square A
Answer» ANSWER: SORRY I don't KNOW the answer.

3.

Prove 1 minus tan square A by cot square A minus 1 is equal to tan square A

Answer»

ANSWER:

SORRY I don't KNOW the answer.

Discussion

4.	3. Find the square root of each of the following fractional numbers correct to 2 decimal place4/7
Answer» Step-by-step EXPLANATION: $\sqrt{4 \div 7}$ = $\sqrt{0.51}$ so BREAK the ROOT then, 0.75 I have WRITE 0.76

4.

3. Find the square root of each of the following fractional numbers correct to 2 decimal place4/7

Answer»

Step-by-step EXPLANATION:

$\sqrt{4 \div 7}$

=

$\sqrt{0.51}$

so BREAK the ROOT

then,

0.75

I have WRITE 0.76

Discussion

5.	Write the discriminant of the quadratic equation.(x + 5)² = 2(5x-3)
Answer» ANSWER: PLEASE CLEAR the QUESTION 1 again

5.

Write the discriminant of the quadratic equation.(x + 5)² = 2(5x-3)

Answer»

ANSWER:

PLEASE CLEAR the QUESTION 1 again

Discussion

6.	Thahini bought some pencils and erasers. Her friend Ashwin spent the same amount and bought thrice as many pencils and five less erasers. Now they are all set to start their group study for V.O.T.E. If the cost of 1 eraser is 2 more than the cost of 1 pencil, then what is the minimum possible number of pencils bought by Thahini and Ashwin together?
Answer» Step-by-step explanation: Let the COST of one pencil = Rs. x Let the cost of one ERASER = Rs. y Romila purchases 2 pencils and 3 erasers for Rs. 9 Cost of 2 pencils = 2x Cost of 3 erasers = 3y Total Cost = Rs. 9 So, we have: 2x + 3y = 9 ---(1) Sonali purchases 4 pencils and 6 erasers for Rs 18. Cost of 4 pencils = 4x Cost of 6 erasers = 6y Total Cost = 18 So, we have: 4x + 6y = 18 So, 2(2x + 3y) = 18 So, 2x + 3y = 9 ----(2) Here, we see that both (1) and (2) are the same equation, which is: 2x+3y=92x+3y=9 This single equation has INFINITELY Many Solutions, as it is a linear equation in two variables. We can PUT any value of x, and find the CORRESPONDING value of y. However, since x and y refer to Costs, we can only take positive values. We still can have infinite solutions. For example, If Cost of 1 pencil = Rs. 3 = x Then \begin{gathered}2x+3y=9 \\ \\ \implies 2(3) + 3y = 9 \\ \\ \implies 3y = 9-6 \\ \\ \implies 3y = 3 \\ \\ \implies y = 1\end{gathered}2x+3y=9⟹2(3)+3y=9⟹3y=9−6⟹3y=3⟹y=1 So, If Cost of one pencil = Rs. 3, Then Cost of one eraser = Rs. 1 Similarly, we can take other values of one variable, and find corresponding values of other variable. Hope it helps Brainly Community

6.

Thahini bought some pencils and erasers. Her friend Ashwin spent the same amount and bought thrice as many pencils and five less erasers. Now they are all set to start their group study for V.O.T.E. If the cost of 1 eraser is 2 more than the cost of 1 pencil, then what is the minimum possible number of pencils bought by Thahini and Ashwin together?

Answer»

Step-by-step explanation:

Let the COST of one pencil = Rs. x

Let the cost of one ERASER = Rs. y

Romila purchases 2 pencils and 3 erasers for Rs. 9

Cost of 2 pencils = 2x

Cost of 3 erasers = 3y

Total Cost = Rs. 9

So, we have:

2x + 3y = 9 ---(1)

Sonali purchases 4 pencils and 6 erasers for Rs 18.

Cost of 4 pencils = 4x

Cost of 6 erasers = 6y

Total Cost = 18

So, we have:

4x + 6y = 18

So, 2(2x + 3y) = 18

So, 2x + 3y = 9 ----(2)

Here, we see that both (1) and (2) are the same equation, which is:

2x+3y=92x+3y=9

This single equation has INFINITELY Many Solutions, as it is a linear equation in two variables.

We can PUT any value of x, and find the CORRESPONDING value of y.

However, since x and y refer to Costs, we can only take positive values. We still can have infinite solutions.

For example,

If Cost of 1 pencil = Rs. 3 = x

Then

\begin{gathered}2x+3y=9 \\ \\ \implies 2(3) + 3y = 9 \\ \\ \implies 3y = 9-6 \\ \\ \implies 3y = 3 \\ \\ \implies y = 1\end{gathered}2x+3y=9⟹2(3)+3y=9⟹3y=9−6⟹3y=3⟹y=1

So, If Cost of one pencil = Rs. 3,

Then Cost of one eraser = Rs. 1

Similarly, we can take other values of one variable, and find corresponding values of other variable.

Hope it helps

Brainly Community

Discussion

7.	Solve 3x-x^2=0 using factorization method
Answer» ANSWER: sorry I don't KNOW answer I REALLY sorry yrr but please GIVE me thanks any one

7.

Solve 3x-x^2=0 using factorization method

Answer»

ANSWER:

sorry I don't KNOW answer I REALLY sorry yrr but please GIVE me thanks any one

Discussion

8.	If cost of 1 kg rice is * 68.50, then the cost of 12 kg of rice is
Answer» Answer: 822 Step-by-step explanation: 1 KG = 68.50 12 kg= 68.50 × 12 = 822

8.

If cost of 1 kg rice is * 68.50, then the cost of 12 kg of rice is

Answer»

Answer:

822

Step-by-step explanation:

1 KG = 68.50

12 kg= 68.50 × 12

= 822

Discussion

9.	Write a perimeter of the given figure
Answer» Answer: 7π CM Step-by-step EXPLANATION: PERIMETER of circle=2πr there is HALF cicle so multiply 1/2 perimeter=1/2 ×2πr since r=7 perimeter=7π cm

9.

Write a perimeter of the given figure

Answer»

Answer:

7π CM

Step-by-step EXPLANATION:

PERIMETER of circle=2πr

there is HALF cicle so multiply 1/2

perimeter=1/2 ×2πr

since r=7

perimeter=7π cm

Discussion

10.	यदि किसी संख्या के 1/5का दो तिहाई का तीन चौथाई 24 के बराबर हो तो वह संख्या क्या ?
Answer» Answer: ski and WALLS of TIME to explore the CLIMATE of the climate of the climate of this email ADDRESS will not be found on LIONS club and walls of time in all of

10.

यदि किसी संख्या के 1/5का दो तिहाई का तीन चौथाई 24 के बराबर हो तो वह संख्या क्या ?

Answer»

Answer:

ski and WALLS of TIME to explore the CLIMATE of the climate of the climate of this email ADDRESS will not be found on LIONS club and walls of time in all of

Discussion

11.	Find the HCF by vertical 440 and 580
Answer» ANSWER: 440 = 2×2×2×5×11 580 = 2×2×5×29

11.

Find the HCF by vertical 440 and 580

Answer»

ANSWER:

440 = 2×2×2×5×11

580 = 2×2×5×29

Discussion

12.	5.8 x 2.5Multiply the following decimal numbers
Answer» ANSWER: 5.8×2.5= 14.5 is the answer

12.

5.8 x 2.5Multiply the following decimal numbers

Answer»

ANSWER:

5.8×2.5= 14.5

is the answer

Discussion

13.	If $10,000 is invested at a simple annual interest rate of 6 percent what is the value the investment after half a year?
Answer» Answer 5000$ Step-by-step EXPLANATION: ANNUAL income MEANS 1 year and half of it means 1/2 so,10000×1/2 =5000$

13.

If $10,000 is invested at a simple annual interest rate of 6 percent what is the value the investment after half a year?

Answer»

Answer

5000$

Step-by-step EXPLANATION:

ANNUAL income MEANS 1 year

and half of it means 1/2

so,10000×1/2

=5000$

Discussion

14.	The surface area of a sphere is 1018sq.cm. What is its volume?
Answer» ANSWER: SOORY don't KNOW the ANS THANKS

14.

The surface area of a sphere is 1018sq.cm. What is its volume?

Answer»

ANSWER:

SOORY don't KNOW the ANS THANKS

Discussion

15.	Find the S.p , when M.P RUPEES 990 and discount 10%
Answer» $\Large \pink{\underline\mathfrak{Question:}}$ $\\$ Find the S.P when M.P rs.990 and discount = 10% $\\$ $\Large \pink{\underline\mathfrak{Solution:}}$ $\\ \\$ To Find: Selling price = ? $\\ \\$ Given that: Marked price = Rs.990 and Discount = 10% $\\ \\$ Formula used: SELLINGPRICE = Marked Price - Discount $\\ \\$ Step by Step explanation: $\: \: \: \: \: \: \: \to\sf{Discount = 10 \: \% \: of \: marked \: price}$ $\: \: \: \: \: \: \: \to\sf{Discount = 10 \: \% \: of \: 990}$ $\: \: \: \: \: \: \: \to\sf{Discount = 990 \: \times \frac{10}{100} }$ $\: \: \: \: \: \: \: \to\sf{Discount = 990 \: \times 0.1}$ $\: \: \: \: \: \: \: \to\sf{Discount = 99}$ Therefore,The discount is Rs.99 $\\ \\$ Selling Price = Marked Price - Discount $\: \: \: \: \to \sf{Selling \: Price = 990 - 99}$ $\: \: \: \: \to \sf{Selling \: Price = 891}$ Thus,The selling price is Rs.891. ──────────────────────

15.

Find the S.p , when M.P RUPEES 990 and discount 10%

Answer»

$\Large \pink{\underline\mathfrak{Question:}}$

$\\$

Find the S.P when M.P rs.990 and discount = 10%

$\\$

$\Large \pink{\underline\mathfrak{Solution:}}$

$\\ \\$

To Find: Selling price = ?

$\\ \\$

Given that: Marked price = Rs.990 and Discount = 10%

$\\ \\$

Formula used: SELLINGPRICE = Marked Price - Discount

$\\ \\$

Step by Step explanation:

$\: \: \: \: \: \: \: \to\sf{Discount = 10 \: \% \: of \: marked \: price}$

$\: \: \: \: \: \: \: \to\sf{Discount = 10 \: \% \: of \: 990}$

$\: \: \: \: \: \: \: \to\sf{Discount = 990 \: \times \frac{10}{100} }$

$\: \: \: \: \: \: \: \to\sf{Discount = 990 \: \times 0.1}$

$\: \: \: \: \: \: \: \to\sf{Discount = 99}$

Therefore,The discount is Rs.99

$\\ \\$

Selling Price = Marked Price - Discount

$\: \: \: \: \to \sf{Selling \: Price = 990 - 99}$

$\: \: \: \: \to \sf{Selling \: Price = 891}$

Thus,The selling price is Rs.891.

──────────────────────

Discussion

16.	Put the words in alphabetical order.(i) start, sound, slowly, same
Answer» ANSWER: same,SLOWLY,soundstart

16.

Put the words in alphabetical order.(i) start, sound, slowly, same

Answer»

ANSWER:

same,SLOWLY,soundstart

Discussion

17.	Find the value of polynomial x -x^3+2 at x=-1
Answer» The ANSWER for the above QUESTION is 2

Discussion

18.	find the value of k if x is equal to 2 and Y is equal to 1 is a solution of the equation 2x + Y is equal to k
Answer» ANSWER: THANKS for ASHING answer but I don't KNOW answer SORRY

18.

find the value of k if x is equal to 2 and Y is equal to 1 is a solution of the equation 2x + Y is equal to k

Answer»

ANSWER:

THANKS for ASHING answer but I don't KNOW answer SORRY

Discussion

19.	Fill in the blanks (6×)² = 6(____)
Answer» Given that: (6x)²=6(____) To Find: the ____ value Solution: (6x)²=6²×x² we can write it as (6X)²= 36(6×x²) ANSWER: (6x)²= 36(6×x²)

19.

Fill in the blanks (6×)² = 6(____)

Answer»

Given that:

(6x)²=6(____)

To Find:

the ____ value

Solution:

(6x)²=6²×x²

we can write it as (6X)²= 36(6×x²)

ANSWER:

(6x)²= 36(6×x²)

Discussion

20.	In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate
Answer» ANSWER: I HOPE it will be HELP FULL for you THANKS

20.

In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate

Answer»

ANSWER:

I HOPE it will be HELP FULL for you THANKS

Discussion

21.	L=3cm,B=2cm.what is the perimeter
Answer» ANSWER: perimeter of rectangle=2(l+b) =2(3+2) =2(5) =10 UNITS

21.

L=3cm,B=2cm.what is the perimeter

Answer»

ANSWER:

perimeter of rectangle=2(l+b)

=2(3+2) =2(5) =10 UNITS

Discussion

22.	5. The value of (8/27)1/3 is
Answer» ANSWER: $( \frac{8}{27} ) \frac{1}{3} \\ = \frac{8}{27} \times \frac{1}{3} \\ = \frac{8}{81}$ It's your answer..

22.

5. The value of (8/27)1/3 is

Answer»

ANSWER:

$( \frac{8}{27} ) \frac{1}{3} \\ = \frac{8}{27} \times \frac{1}{3} \\ = \frac{8}{81}$

It's your answer..

Discussion

23.	What is the scientific name of Onion?
Answer» Answer: Allium CEPA IS THE SCIENTIFIC NAME FOR ONION Step-by-step explanation:

23.

What is the scientific name of Onion?

Answer»

Answer:

Allium CEPA IS THE SCIENTIFIC NAME FOR ONION

Step-by-step explanation:

Discussion

24.	27% of fertilizer is super phosphate. how much superphosphate (in kilogram) is in 2 tooes of mixture
Answer» ANSWER: Hence, we have that 27% of a fertilizer issuperphosphate, hence we will have that VALUE MULTIPLIED by 1000 and by 2, because we are considering 2 tonnes. Hence, we will get, in onefertilizer, 27%, which is equal to 27g = 0.0027kg, which we can SAY it is the same as 0.00027 tonnes, and this is equal to 0.27kg.

24.

27% of fertilizer is super phosphate. how much superphosphate (in kilogram) is in 2 tooes of mixture

Answer»

ANSWER:

Hence, we have that 27% of a fertilizer issuperphosphate, hence we will have that VALUE MULTIPLIED by 1000 and by 2, because we are considering 2 tonnes. Hence, we will get, in onefertilizer, 27%, which is equal to 27g = 0.0027kg, which we can SAY it is the same as 0.00027 tonnes, and this is equal to 0.27kg.

Discussion

25.	the probability that will rain tomorrow is 0.75 .What is the probability that it will not rain tommorow
Answer» Answer: 0.25 Step-by-step EXPLANATION: let probablity of rain be p(E)=0.75 let probability of not RAINING be p(ne)=? (WHERE P(ne) is not FAVORABLE EVENT) WKT: P(e) +P(ne) = 1 I.e 0.75+P(ne) = 1 p(ne) = 1 - 0.75 p(ne) = 0.25 HOPE IT HELPZZ!!!!!!!!!!! DO LIKE ❤❤ LOVE YOU ALL❤

25.

the probability that will rain tomorrow is 0.75 .What is the probability that it will not rain tommorow

Answer»

Answer:

0.25

Step-by-step EXPLANATION:

let probablity of rain be p(E)=0.75

let probability of not RAINING be p(ne)=? (WHERE P(ne) is not FAVORABLE EVENT)

WKT: P(e) +P(ne) = 1

I.e 0.75+P(ne) = 1

p(ne) = 1 - 0.75

p(ne) = 0.25

HOPE IT HELPZZ!!!!!!!!!!!

DO LIKE ❤❤

LOVE YOU ALL❤

Discussion

26.	The equation x^2-18+81=0 has repeated roots true or false with equation
Answer» ANSWER: false Step-by-step EXPLANATION: HOPE it's HELP you

26.

The equation x^2-18+81=0 has repeated roots true or false with equation

Answer»

ANSWER:

false

Step-by-step EXPLANATION:

HOPE it's HELP you

Discussion

27.	Hey bro !!how's uh??
Answer» Step-by-step explanation: Check the bio and FOLLOW on IG , I will also follow

27.

Hey bro !!how's uh??

Answer»

Step-by-step explanation:

Check the bio and FOLLOW on IG , I will also follow

Discussion

28.	if cosec theta = 2 upon under root 3 find the value of sin square theta and Cos theta + tan square theta
Answer» ANSWER: the answer is in above PIC HOPE it helps plz MARK as BRAINLIEST

28.

if cosec theta = 2 upon under root 3 find the value of sin square theta and Cos theta + tan square theta

Answer»

ANSWER:

the answer is in above PIC

HOPE it helps

plz MARK as BRAINLIEST

Discussion

29.	5. Add: 45L 115ml, 27L 75ml and 17L 875ml.Ans:
Answer» Step-by-step explanation: 45 L 115 ML+27 L 75ML +17 L 875 ml (45+27+17 L) +(115 +75+875 ml) 89 L +1.065 ml 90.065 L OR 90065 ml

29.

5. Add: 45L 115ml, 27L 75ml and 17L 875ml.Ans:

Answer»

Step-by-step explanation:

45 L 115 ML+27 L 75ML +17 L 875 ml

(45+27+17 L) +(115 +75+875 ml)

89 L +1.065 ml

90.065 L

OR

90065 ml

Discussion

30.	Ir the ratio 2a to b is 8 times the ratio b to a then a/b could be. 1
Answer» Answer: If the RATIO of 2a to B is 8 times the ratio of b to a, then could be which of the following? I. - 2 II. -1/2 IIl 1/2 A. I only B. II only C. III only D. II and III only E. I, II and III given 2a/b=8b/a solve a^2=4b^2 square a=2b b/a= +/-1/2 IMOD

30.

Ir the ratio 2a to b is 8 times the ratio b to a then a/b could be. 1

Answer»

Answer:

If the RATIO of 2a to B is 8 times the ratio of b to a, then could be which of the following?

I. - 2

II. -1/2

IIl 1/2

A. I only

B. II only

C. III only

D. II and III only

E. I, II and III

given

2a/b=8*b/a

solve

a^2=4*b^2

square

a=2b

b/a= +/-1/2

IMOD

Discussion

31.	3. If the projection v along u is equal to that of walong u and y, w are perpendicular to each otherthan I u - V + w l equals(a) V14(b) .(c) 2(d)14
Answer» ANSWER: 14 is the CORRECT answer

31.

3. If the projection v along u is equal to that of walong u and y, w are perpendicular to each otherthan I u - V + w l equals(a) V14(b) .(c) 2(d)14

Answer»

ANSWER:

14 is the CORRECT answer

Discussion

32.	A car starts from rest and moves with an acceleration 5m per second square .find the distance travelled by the body in 5th second is
Answer» ANSWER: u=0 a=5m/s^2 t=5s s=? s=ut+1/2at^2 s=05+1/255^2 m s=55*2.5 m s=62.5 m

32.

A car starts from rest and moves with an acceleration 5m per second square .find the distance travelled by the body in 5th second is

Answer»

ANSWER:

u=0

a=5m/s^2

t=5s

s=?

s=ut+1/2at^2

s=0*5+1/2*5*5^2 m

s=5*5*2.5 m

s=62.5 m

Discussion

33.	Subtract the sum of 3/1/3and 2/2/3 from the sum of 2/3/4and 5/1/3
Answer» ANSWER: what is 24.23 as an IMPROPER FRACTION GIVE REASON for your answer

33.

Subtract the sum of 3/1/3and 2/2/3 from the sum of 2/3/4and 5/1/3

Answer»

ANSWER:

what is 24.23 as an IMPROPER FRACTION GIVE REASON for your answer

Discussion

34.	Q.No.:22If 3 persons can do a piece of work in 4 days, then 4 persons can do it indays.Marks: 1
Answer» ANSWER: So, the answer of this QUESTION is 1 DAY

34.

Q.No.:22If 3 persons can do a piece of work in 4 days, then 4 persons can do it indays.Marks: 1

Answer»

ANSWER:

So, the answer of this QUESTION is 1 DAY

Discussion

35.	Find the square root of the following decimal numbers.(a) 2.56. (b) 7.29
Answer» ANSWER: (a)sqrt2.56=1.6 (B)sqrt7.29= not a PERFECT SQUARE

35.

Find the square root of the following decimal numbers.(a) 2.56. (b) 7.29

Answer»

ANSWER:

(a)sqrt2.56=1.6

(B)sqrt7.29= not a PERFECT SQUARE

Discussion

36.	The cost of 1kg of chillies is Rs 15.25 what is the cost of 8 kgs of chillies?
Answer» ANSWER: 122 Step-by-step explanation: SINCE 1 kg COSTS 15.25 8 kg will COST 8x15.25 which is 122

36.

The cost of 1kg of chillies is Rs 15.25 what is the cost of 8 kgs of chillies?

Answer»

ANSWER:

122

Step-by-step explanation:

SINCE 1 kg COSTS 15.25

8 kg will COST

8x15.25

which is 122

Discussion

37.	2 + 3i/1+2iinto a +ib form
Answer» ANSWER: Step-by-step explanation: 2 is CORRECT

37.

2 + 3i/1+2iinto a +ib form

Answer»

ANSWER:

Step-by-step explanation:

2 is CORRECT

Discussion

38.	The degree of variable in a linear equation is?
Answer» the DEGREE of POLYNOMIAL is 1.

38.

The degree of variable in a linear equation is?

Answer»

the DEGREE of POLYNOMIAL is 1.

Discussion

39.	18. The length of outer and inner diameter of hollow right circular cylinder are 16 cm. and 12cm. respectively. Height of cylinder is 36 cm. Let us calculate how many solid cylinders of2 cm, diameter and 6 cm. length may be obtained by melting this cylinder.
Answer» Answer: Solution : The outer diameter = 16 cm The outer RADIUS The inner diameter = 12 cm the inner radius . Height of the cylinder . So, the volume of the materials of the HOLLOW cylinder . The radius of small cylinders to be made and their lengths = 6 cm each. The volume of each small cylinders to be made So the required number of small cylinders . HENCE the required number of cylinders to be made is equal to 42. [ N.B. : If the outer and inner radius ( not diameter) be 16 cm and 12 cm respectively, then the number of cylinders is 168. ]

39.

18. The length of outer and inner diameter of hollow right circular cylinder are 16 cm. and 12cm. respectively. Height of cylinder is 36 cm. Let us calculate how many solid cylinders of2 cm, diameter and 6 cm. length may be obtained by melting this cylinder.

Answer»

Answer:

Solution :

The outer diameter = 16 cm

The outer RADIUS

The inner diameter = 12 cm

the inner radius

.
Height of the cylinder

.
So, the volume of the materials of the HOLLOW cylinder

.
The radius of small cylinders to be made

and their lengths = 6 cm each.

The volume of each small cylinders to be made

So the required number of small cylinders

.
HENCE the required number of cylinders to be made is equal to 42.
[ N.B. : If the outer and inner radius ( not diameter) be 16 cm and 12 cm respectively, then the number of cylinders is 168. ]

Discussion

40.	Q. 4. The sides of a polygon are 8 in numberswhat would be the sum of its internal angles ?
Answer» ANSWER: (n−2) × 180 HOPE IT HELPS PLS MARK AS BRILLIANT AND PLS FOLLOW

40.

Q. 4. The sides of a polygon are 8 in numberswhat would be the sum of its internal angles ?

Answer»

ANSWER:

(n−2) × 180

HOPE IT HELPS

PLS MARK AS BRILLIANT AND PLS FOLLOW

Discussion

41.	A number increased by unity is equal to 5? What is the numberA. 4B.6C.5
Answer» ANSWER: number is 2 Explanation: let number be X GIVEN- x+1=3(x-1) x+1=3x-3 2x=4 x=2 so number is two

41.

A number increased by unity is equal to 5? What is the numberA. 4B.6C.5

Answer»

ANSWER:

number is 2

Explanation:

let number be X GIVEN- x+1=3(x-1) x+1=3x-3 2x=4 x=2 so number is two

Discussion

42.	5. Find the numerical value of the following expressions.a) 4x2-5 when x=3.pls tell correct answer
Answer» Answer: 4 MULTIPLY 3 multiply 2 -5= 24-5=19

42.

5. Find the numerical value of the following expressions.a) 4x2-5 when x=3.pls tell correct answer

Answer»

Answer:

4 MULTIPLY 3 multiply 2 -5= 24-5=19

Discussion

43.	6. If a=3, b=2, C= -1, then value of (a-b+2c) is
Answer» ANSWER: (3-2+2×1) 3 I HOPE this will HELP you

43.

6. If a=3, b=2, C= -1, then value of (a-b+2c) is

Answer»

ANSWER:

(3-2+2×1)

3

I HOPE this will HELP you

Discussion

44.	2x^2 वे 4 + 3 = 0 के लिए विवित्कर ज्ञात कीजिए।
Answer» *What* *you* *WANT* to *ASK. I can't* *understand. SORRY* *for* *spam*.

44.

2x^2 वे 4 + 3 = 0 के लिए विवित्कर ज्ञात कीजिए।

Answer»

What you WANT to ASK.

I can't understand.

SORRY for spam.

Discussion

45.	Amanda pours 3/4 of her water into Barbara’s empty bottle. Barbara then pours 3/5 of her water into Charlie’s empty bottle. Charlie then pours 1/2 of his water into David’s empty bottle. If David now has 18 ounces of water, how many ounces does Amanda still have?
Answer» Solution :- Let TOTAL water in Amanda bottle was x ounces . so, → Amanda pours water in Barbara’s empty bottle = (3/4) of x = (3x/4) ounces . now, → Barbara pours water in Charlie’s empty bottle = (3/5) of (3x/4) = (9X/20) ounces . and, → Charlie pours water in David’s empty bottle = (1/2) of (9x/20) = (9x/40) ounces . A/q, → (9x/40) = 18 → 9x = 40 * 18 → x = 40 * 2 → x = 80 ounces . therefore, → Water Amanda still have = (1/4) of 80 = (1/4) * 80 = 20 ounces . (Ans.) Learn more :- A tennis team has won 15 out of 20 matches they played this season. How many additional matches MUST the team win in a r... brainly.in/question/36260947 in a bag , number one rupee coin is three time then two rupees coin if there are only Rs 150 in this bag , then find out... brainly.in/question/37085003 ek sankhya batao Jo 100 se aadhe hai 40 se jyada per 50 se kam hai jismein DAHI ka ank ikai ke ank se 2 adhik hai is ank... brainly.in/question/37009319

45.

Amanda pours 3/4 of her water into Barbara’s empty bottle. Barbara then pours 3/5 of her water into Charlie’s empty bottle. Charlie then pours 1/2 of his water into David’s empty bottle. If David now has 18 ounces of water, how many ounces does Amanda still have?

Answer»

Solution :-

Let TOTAL water in Amanda bottle was x ounces .

so,

→ Amanda pours water in Barbara’s empty bottle = (3/4) of x = (3x/4) ounces .

now,

→ Barbara pours water in Charlie’s empty bottle = (3/5) of (3x/4) = (9X/20) ounces .

and,

→ Charlie pours water in David’s empty bottle = (1/2) of (9x/20) = (9x/40) ounces .

A/q,

→ (9x/40) = 18

→ 9x = 40 * 18

→ x = 40 * 2

→ x = 80 ounces .

therefore,

→ Water Amanda still have = (1/4) of 80 = (1/4) * 80 = 20 ounces . (Ans.)

Learn more :-

A tennis team has won 15 out of 20 matches they played this season. How many additional matches MUST the team win in a r...

brainly.in/question/36260947

in a bag , number one rupee coin is three time then two rupees coin if there are only Rs 150 in this bag , then find out...

brainly.in/question/37085003

ek sankhya batao Jo 100 se aadhe hai 40 se jyada per 50 se kam hai jismein DAHI ka ank ikai ke ank se 2 adhik hai is ank...

brainly.in/question/37009319

Discussion

46.	Class 10Mathematics Chapter 2 - Coordinate GeometryFormulas Needed Quality Answer Needed
Answer» ★ CO – ORDINATE GEOMETRY FORMULAS — I) Distance Formula Distance formula is used to find the distance between TWO given Points. ${\underline{\boxed{\frak{Distance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}}}}}$ $\rule{250px}{.3ex}$ II) SECTION Formula Section Formula is used to find the ratio(x, y) of the point (A) Which divides the line segment joining the points (B) and (C) internally or externally. ${\underline{\boxed{\frak{ \Big(x, y \Big) = \Bigg(\dfrac{mx_2 + nx_1}{m + n} \dfrac{my_2 + ny_1}{m + n}\Bigg)}}}}$ ⠀ $\rule{250px}{.3ex}$ III) Mid – point Formula Mid Point formula is used to find the Mid points(x, y) on any line segment. ${\underline{\boxed{\frak{\Bigg(\dfrac{x_1 + x_2}{2} \; or\; \dfrac{y_1 + y_2}{2} \Bigg)}}}}$ $\rule{250px}{.3ex}$ IV) Trisection of Line Formula To find the points of trisection A and B which divides the line segment joining the points $\sf Q(x_1, y_1)$ and $\sf R (x_2, y_2)$ into THREE equal parts. $\underline{\boxed{\frak{A = \dfrac{x_2 + 2x_1}{3},\; \dfrac{y_2 + 2y_1}{3}\;\&\;B = \dfrac{2x_2 + x_1}{3},\; \dfrac{2y_2 + y_1}{3}}}}$ $\rule{250px}{.3ex}$ V) Centroid of Triangle If $\sf A(x_1, y_1), B(x_2, y_2)$ and $\sf C(x_3, y_3)$ are the vertices of any ∆ ABC, then the co–ordinates of its centroid (Q) are given by. $\underline{\boxed{\frak{Q = \dfrac{x_1 + x_2 + x_3}{3}, \: \dfrac{y_1 + y_2 + y_3}{3}}}}$ $\rule{250px}{.3ex}$ VI) Area of Triangle If the points A, B and C are the vertices of a Δ ABC, then the formula of area of triangle is given by. $\underline{\boxed{\frak{\triangle = \dfrac{1}{2} x_1(y_2 - y_3) + x_2(y_3 - y_1) + x_3(y_1 - y_2)}}}$ $\rule{250px}{.3ex}$

46.

Class 10Mathematics Chapter 2 - Coordinate GeometryFormulas Needed Quality Answer Needed

Answer»

★ CO – ORDINATE GEOMETRY FORMULAS —

I) Distance Formula

Distance formula is used to find the distance between TWO given Points.

${\underline{\boxed{\frak{Distance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}}}}}$

$\rule{250px}{.3ex}$

II) SECTION Formula

Section Formula is used to find the ratio(x, y) of the point (A) Which divides the line segment joining the points (B) and (C) internally or externally.

${\underline{\boxed{\frak{ \Big(x, y \Big) = \Bigg(\dfrac{mx_2 + nx_1}{m + n} \dfrac{my_2 + ny_1}{m + n}\Bigg)}}}}$ ⠀

$\rule{250px}{.3ex}$

III) Mid – point Formula

Mid Point formula is used to find the Mid points(x, y) on any line segment.

${\underline{\boxed{\frak{\Bigg(\dfrac{x_1 + x_2}{2} \; or\; \dfrac{y_1 + y_2}{2} \Bigg)}}}}$

$\rule{250px}{.3ex}$

IV) Trisection of Line Formula

To find the points of trisection A and B which divides the line segment joining the points

$\sf Q(x_1, y_1)$ and $\sf R (x_2, y_2)$ into THREE equal parts.

$\underline{\boxed{\frak{A = \dfrac{x_2 + 2x_1}{3},\; \dfrac{y_2 + 2y_1}{3}\;\&\;B = \dfrac{2x_2 + x_1}{3},\; \dfrac{2y_2 + y_1}{3}}}}$

$\rule{250px}{.3ex}$

V) Centroid of Triangle

If $\sf A(x_1, y_1), B(x_2, y_2)$ and $\sf C(x_3, y_3)$ are the vertices of any ∆ ABC, then the co–ordinates of its centroid (Q) are given by.

$\underline{\boxed{\frak{Q = \dfrac{x_1 + x_2 + x_3}{3}, \: \dfrac{y_1 + y_2 + y_3}{3}}}}$

$\rule{250px}{.3ex}$

VI) Area of Triangle

If the points A, B and C are the vertices of a Δ ABC, then the formula of area of triangle is given by.

$\underline{\boxed{\frak{\triangle = \dfrac{1}{2} x_1(y_2 - y_3) + x_2(y_3 - y_1) + x_3(y_1 - y_2)}}}$

$\rule{250px}{.3ex}$

Discussion

47.	Arrange the colum and add 7,12,26,42 and 123.06
Answer» Answer: 7+12+26+42+123.06 =200.06

47.

Arrange the colum and add 7,12,26,42 and 123.06

Answer»

Answer:

7+12+26+42+123.06

=200.06

Discussion

48.	What number must be addedeach term 9:15 to make2:31
Answer» ANSWER: 9.15+(-6.84)=2.31 Hope it HELP's you Plz MARK my Answer as BRAINLIEST

48.

What number must be addedeach term 9:15 to make2:31

Answer»

ANSWER:

9.15+(-6.84)=2.31

Hope it HELP's you

Plz MARK my Answer as BRAINLIEST

Discussion

49.	Sin A + cos A÷sinA - cosA+sinA-cosA÷ sinA+cosA = 2÷ 1- cos²A
Answer» ANSWER: sinA−cosA sinA+cosA + sinA+cosA sinA−cosA = (sinA−cosA)(sinA+cosA) (sinA+cosA) 2 + (sinA−cosA)(sinA+cosA) (sinA−cosA) 2 = sin 2 A−COS 2 A sin 2 A+cos 2 A+2sinAcosA+sin 2 A+cos 2 A−2sinAcosA = sin 2 A−cos 2 A 2 = sin 2 A−(1−sin 2 A) 2 = 2sin 2 A−1 2 = 2(1−cos 2 A)−1 2 = 1−2co View solution Prove that sin(A+B+C)+sin(−A+B+C)−sin(A−B+C)+sin(A+B−C) cos(A+B+C)+cos(−A+B+C)+cos(A−B+C)+cos(A+B−C) =

49.

Sin A + cos A÷sinA - cosA+sinA-cosA÷ sinA+cosA = 2÷ 1- cos²A

Answer»

ANSWER:

sinA−cosA

sinA+cosA

+

sinA+cosA

sinA−cosA

=

(sinA−cosA)(sinA+cosA)

(sinA+cosA)

2

+

(sinA−cosA)(sinA+cosA)

(sinA−cosA)

2

=

sin

2

A−COS

2

A

sin

2

A+cos

2

A+2sinAcosA+sin

2

A+cos

2

A−2sinAcosA

=

sin

2

A−cos

2

A

2

=

sin

2

A−(1−sin

2

A)

2

=

2sin

2

A−1

2

=

2(1−cos

2

A)−1

2

=

1−2co

View solution

Prove that

sin(A+B+C)+sin(−A+B+C)−sin(A−B+C)+sin(A+B−C)

cos(A+B+C)+cos(−A+B+C)+cos(A−B+C)+cos(A+B−C)

=

Discussion

50.	Findthe Sum of 125 and _124
Answer» Answer: 249 = SUM of 125 & 129.

50.

Findthe Sum of 125 and _124

Answer»

Answer:

249 = SUM of 125 & 129.

Discussion

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