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3 years ago

12

A sports ball has a diameter of 12 cm. Find the volume of the ball.

2 answers:

velikii [3]3 years ago

8 0

The volume of a sphere is $\frac{4}{3}$ πr³

If the diameter is 12 cm, divide that in half to get the radius, which is 6.

Now, just plug your variables into the equation for volume.

V = $\frac{4}{3}$ (3.14)6³

V= $\frac{4}{3}$ (678.24)

V= 904.32 cm³

stealth61 [152]3 years ago

5 0

Step 1: I drew a visual representation

Step 2: write the formulae for the volume of a sphere which is V=4*PI*r cubed all divided by 3. Refer to my image

Step 3: answer is 7234.56 cm cubed

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The cost for roberta's college next year $11000 she has a Grant for $1500 a scholarship of $5000 she plans to earn 40% of the re

9966 [12]

She will have to pay $2,700.

She is starting with a bill of $11,000. If we subtract the 1500 grant and 5000 scholarship, she has left a bill of 4500.

She is going to earn 40% of it, so she still have to pay 60% of it.

0.6 x 4500 = 2700

8 0

3 years ago

Divide. Write your answer as a fraction in simplest form. − 7 1/0÷2/5=

forsale [732]

Answer:

$- \frac{71}{4}$

Step-by-step explanation:

$- 7 \frac{1}{10} \div \frac{2}{5}$

$= - \frac{71}{10} \times \frac{5}{2}$

$= - \frac{71}{2} \times \frac{1}{2}$

$= - \frac{71}{4}$

4 0

3 years ago

!!!!!! URGENT PLS HELP ME ANSWER !!!!

laila [671]

Answer:

1) A = 547.1136, C = 82.896

2) A = 678.5226, C = 92.316

3) A = 844.5344, C = 102.992

4) A = 1554.49625, C = 139.73

5) A = 1561.4906, C = 140.044

6) A = 994.8776, C = 111.784

Step-by-step explanation:

1)

$A = \Pi (\frac{D}{2})^2 = 3.14 * (\frac{26.4}{2})^2 = 3.14 * 13.2^2 = 547.1136$

$C = \Pi D = 3.14 * 26.4 = 82.896$

2)

$A = \Pi r^2 = 3.14*(14.7)^2 = 678.5226$

$C = 2\Pi r = 14.7*2 * 3.14 = 92.316$

3)

$A = \Pi (\frac{D}{2})^2 = 3.14 * (\frac{32.8}{2})^2 = 3.14 * 16.4^2 = 844.5344$

$C = \Pi D = 3.14 * 32.8 = 102.992$

4)

$A = \Pi (\frac{D}{2})^2 = 3.14 * (\frac{44.5}{2})^2 = 3.14 * 22.25^2 = 1554.49625$

$C = \Pi D = 44.5*3.14 = 139.73$

5)

$A = \Pi r^2 = 3.14*22.3^2 = 1561.4906$

$C = 2\Pi r = 2 * 3.14 * 22.3 = 140.044$

6)

$A = \Pi r^2 = 3.14 * 17.8^2 = 994.8776$

$C = 2\Pi r = 2 * 3.14 * 17.8 = 111.784$

8 0

2 years ago

Which is an even monomial function?

natta225 [31]

Answer:

An even monomial function is a monomial function in which the degree, or exponent, of the variable is an even number.

5 0

2 years ago

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Fill in the missing values in the table and answer the question. Scale Distance on map Distance in miles 1/4 inch = 1 mile 2.5 i

Sliva [168]

Answer:

ao = 6 miles

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Step-by-step explanation:

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3) 1 inch 1 mile

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4) 1 inch 5 miles

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5) 1 inch 15 miles

2.0 inches 30 miles

6) 1 inch 25 miles

2.0 inches <u>_50__</u>_____ miles

Thank you.

4 0

3 years ago