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slavikrds [6]
3 years ago
11

I need help im stuck

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
6 0

Answer:

4712.4

Step-by-step explanation:

I got the same question a few days ago.

The volume is πr^2 * h / 3

r = 15

h =  20

225π * 20 / 3

1500π

It's 4712.38898

Round to 4712.4

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The lateral surface area of cone A is equal to the lateral surface area of cylinder B.
Natasha2012 [34]

Answer:

TRUE

Step-by-step explanation:

Lateral area of cone is given by: πrl

where r is the radius and l is the slant height

Here r=r and l=2h

Hence, lateral area of cone A= π×r×2h

                                            =  2πrh

Lateral area of cylinder is given by: 2πrh

where r is the radius and h is the height

Lateral area of cylinder B=2πrh

Clearly, both the lateral areas are equal

Hence, the statement that:The lateral surface area of cone A is equal to the lateral surface area of cylinder B. is:

True

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2 years ago
A number, y, is five times another number, x. The sum of the two numbers is 42. Write the system of equations.
vovikov84 [41]

Answer:

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Step-by-step explanation:

5 0
2 years ago
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Marizza181 [45]

Answer:

0.60

Step-by-step explanation:

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3 years ago
Help Plz (Emergency)
kompoz [17]

Answer: s = 36

Step-by-step explanation: The key to solving multistep equations is isolating the variable. This is why I first subtracted 14 on each side. This left me with 1/3s=12. Then, to isolate "s" even more, I didvided by 1/3 on each side. This gave me s = 36 as an answer.

To divide by a fraction, use "keep change flip." Keep the first mumber, change division to multiplication, and flip the fraction. I included a picture of me doing this.

If you have any other questions, please feel free to ask :)

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