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2 years ago

The circumference of a cirlcle is 6π inches. What is the area of the cirlce?

Mathematics

2 answers:

dsp732 years ago

8 0

The correct answer is B.

Start from the equation for the circumference and solve it for the radius:

$C = 2\pi r \implies r = \frac{C}{2\pi}$

So, the radius of the circumference is

$\frac{6\pi}{2\pi} = 3$ inches

Once the radius in known, you can plug it in the formula for the area:

$A = \pir^2 = 9\pi$ squared inches.

Dimas [21]2 years ago

6 0

Answer:the answer would be A

Step-by-step explanation:

C= 2πr

6π=2πr

——/—-

2π. 2π

3=r

A = 3π inches squared

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Answer:

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

Volume is cubed. so it would be 6^3

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3 years ago

Safiya deposited money into a bank account that earned 6.5% simple interest each year. After 3 1/2 years, she had earned $36.40

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Answer:

$1,792

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3 years ago

Which equation is the inverse of y = 2x^2 - 8?

evablogger [386]

Answer: A

Step-by-step explanation:

$y=2x^2-8$

1. Swap x and y.

$x=2y^2-8$

2. Solve for the new y.

Add 8

$x+8=2y^2$

Divide by 2.

$\frac{x+8}{2}=y^2$

Extract the square root.

$\sqrt{\frac{x+8}{2} }=y$

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3 years ago