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rjkz [21]
3 years ago
8

A party hat has a diameter of 18 centimeter and a height of 25 centimeter. Find the volume of air it can occupy.

Mathematics
1 answer:
dusya [7]3 years ago
6 0

Answer:

2120.58 centimeters³

Explanation:

First divide the diameter by 2 to get 9. The volume of a cone is 1/3*π*r²*h so  1/3*π*9²*25

This equals 2120.59 cm³ (cubed)

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4. Which operation should be completed first in the expression below? Use PEMDAS to evaluate. 24 ÷ (12 – 8) x 6 + 3 a. Add b. Su
irinina [24]

Answer:

Option b - Subtract

Step-by-step explanation:

Given : Expression 24\div(12-8)\times 6+3

To find : Which operation should be completed first in the expression below?

Solution :

P - Parentheses

E - Exponent

D - Divide

M - Multiplication

A - Addition

S - Subtraction

In the first step we solve the bracket in the expression  24\div(12-8)\times 6+3

So, we do subtraction i.e. 12-8=4

Therefore, option b is correct.

5 0
3 years ago
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leonid [27]

Answer:

(x-6)^{2}

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3 years ago
Can you answer number10 please I’m trying to help my sister
Deffense [45]

Answer:

544

Step-by-step explanation:

I added them together.

3 0
3 years ago
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Your friend shows you a coin collection. In it 45/50 of the coins are quarters. what percent of the coins are quarters?
Ksenya-84 [330]

Answer:

90% of them are quarters.

Step-by-step explanation:

If you take 50 and multiply it by two, you get 100. But, in order to get the right number, you have to multiply 45 by two as well. 45 x 2 is 90. 90 out of 100 is 90 percent. So 90% is the answer.

8 0
3 years ago
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What is the volume of a sphere with an 18 inch diameter ?
photoshop1234 [79]
18 inch diameter = 9 inch radius
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</span></span><span>Sphere Volume   = <span>  4/3 * PI * 729
</span></span><span><span>Sphere Volume   =   </span>3,053.628 </span>




3 0
3 years ago
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