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3 years ago

A sphere has a radius of 6 inches. What is the volume of the sphere in terms of π? V = 12 π in.3

Mathematics

1 answer:

eduard3 years ago

5 0

Answer:

144π

Step-by-step explanation:

The formula for the area of a sphere is 4πr². Thus, plugging 6 in for r, we get 144π as our answer

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If B is the midpoint of AC, and AC= 8x-20, find BC.

Semmy [17]

Answer:

BC = 4x-10

Step-by-step explanation:

$\because B$ is the midpoint of AC.

$\therefore BC = \frac{1}{2} AC$

$\therefore BC = \frac{1}{2} (8x-20)$

$\therefore BC = \frac{1}{2} \times 2(4x-10)$

$\huge \purple {\boxed {\therefore BC = 4x-10}}$

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2 years ago

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qaws [65]

Answer:

Step-by-step explanation:

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2 years ago

Use Gauss's approach to find the following sums (do not use formulas). 1+3+5+7+...999

muminat

$S=1+3+5+\cdots+995+997+999$
$S=999+997+995+\cdots+5+3+1$
$\implies 2S=(1+999)+(3+997)+(5+995)+\cdots+(995+5)+(997+3)+(999+1)$

$2S=\underbrace{1000+1000+\cdots+1000+1000}_{500\text{ times}}$

(We are adding 500 instances of 1000 because that's how many odd numbers there are between 1 and 1000, inclusive.)

$2S=500\times1000=500000$
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3 years ago

Suppose that you saw 240 minutes of commercials this week. How many hours of commercials did you see?

kicyunya [14]

Answer:

4 hours

Step-by-step explanation:

240÷60=4 hours

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2 years ago

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