2 years ago

The radius of a semicircle is 4 miles. What is the semicircle's area?

Mathematics

1 answer:

adell [148]2 years ago

6 0

Answer:

8 $\pi$ miles or 25.133 miles

Step-by-step explanation:

your radius is 4 miles.

The area of a circle is A= $\pi r^{2}$

Therefore, the area of this circle is $4^{2} \pi$ , or 16 $\pi$

Half of this area, because what you're looking for is a semi-circle, is:

8 $\pi$ (exact) or 25.133 (rounded) miles.

You might be interested in

Which of the following is equal to the rational expression when x -2 or -6?

kykrilka [37]

The given expression is

$f(x) = \frac{3(x+2}{(x+2)(x+6)}$

And since we have x+2 common in numerator and denominator, there is a hole at x+2=0, that is at x=-2

And a function is undefined when denominator is zero. And at x=-6, denominator become zero.

So, at x=-6, the function is undefined, or there is a vertical asymptote at x=-6 and hole at x=-2 .

4 0

3 years ago

Can someone help me with this? I don't really understand it

SSSSS [86.1K]

Answer:

#1 goes to B.

#2 goes to C.

#3 goes to D.

#4 goes to A.

Hope this helps.

6 0

2 years ago

Pls show working 3 friends shared the driving on a long trip. Marla drove 7 miles more than Guido. Guido drove five times as far

olga2289 [7]

Step-by-step explanation:

Marla drove 567

Gudio drove 560

The trip was 679

5 0

2 years ago

Read 2 more answers

How can i easily subtract and add a fraction?

gulaghasi [49]

Line the decimals up and add like you normally would.But don't forget to put your decimal in your answer

8 0

3 years ago

Read 2 more answers

A bag contains 6 red and 10 black marbles. If you pick a marble from the bag, what is the probability that the marble will not b

Anton [14]

Answer:

you add 6 and ten to get 16. Since there are only 6 red, you do 6/16 = 0.375

So the answer is 37.5%

Step-by-step explanation:

3 0

3 years ago