4 years ago

Using 3.14 for it, what is the volume, to the nearest cubic centimeter, of a ball with a diameter of 7 centimeters

Mathematics

1 answer:

Ipatiy [6.2K]4 years ago

5 0

Answer:

180 cm^3

Step-by-step explanation:

The ball is a sphere.

Volume of a sphere = $\frac{4 \pi r^{3} }{3}$

where pi = 3.14 and r = 3.5 cm, (which is half the diameter)

Substituting them in, gives us the answer.

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Find the equation of the circle with center at (0, 0) and diameter of 18.

Agata [3.3K]

Answer:

${x}^{2} + {y}^{2} = 81$

Step-by-step explanation:

The general for for the equation of a circle is

${(x - a)}^{2} + {(y - b)}^{2} = {r}^{2}$

Where a is the x coordinate of the centre, b is the y coordinate of the centre and r is the radius.

In your case, a=0, b=0, r=9

Substituting these values into the general form gives the answer.

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3 years ago

44.5 + g = 50 answer

soldi70 [24.7K]

Answer:

$44.5 + g = 50 \\ g = 50 - 44.5 \\ g = 5.5$

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3 years ago

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4 years ago

We are in school 9 months out of the year. What percent of the year are we in<br> school?

Igoryamba

There are 12 months in a year.

Divide 9 by 12 then multiply by 100 to get the percentage.

9/12 = 0.75 x 100 = 75%

Answer: 75%

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3 years ago

A___ is an account into which you deposit money and from which you gradually withdraw money by writing checks or using a debit c

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Answer:

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3 years ago

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