Find the circumference and the area of the circle with a diameter of 15ft

Mathematics

1 answer:

guapka [62]2 years ago

6 0

Answer:

Circumference is pi times diameter so that would equal 15 pi. The formula to find the area of a circle is A=pi * r^2 So you divide 15 by 2 to find the radius. r=7.5 Then you square it and multiply it by pi and get 56.25pi which is about equal to 176.715

You might be interested in

When you flip a coin twice what is the sample space?

Shkiper50 [21]

Sample space is all possible outcome of an event.and denotes in a set form{}

If u flipa coin twice then sample space={HH,TT,HT,TH}

8 0

3 years ago

What is the simplified from of pi √3-8 pi√3<br>

irina [24]

Answer:

-7pi √3

Step-by-step explanation:

Treating pi as a variable, the simplified value can be written as;

-7pi √3

This can be obtained from using the following simple methodology;

pi(√3 -8 √3)

= pi (-7 √3)

6 0

3 years ago

13 and 15<br><br>solve each problem by graphing and slope intercept

mylen [45]

Answer: The answers are 13. (A) and 14. (B).

Step-by-step explanation: The calculations are as follows:

(13) The given equations are

$y=-\dfrac{3}{8}x-6,\\\\\\y=-\dfrac{13}{8}x+4.$

In the attached figure (a), these two lines are drawn. We can see that The lines intersect at the point P(8, -9). So, the solution to the pair of equations is (8, -9).

Thus, the correct option is (A).

(14) The given equations are

$y=-\dfrac{1}{7}x-1,\\\\\\y=-x+5.$

In the attached figure (b), these two lines are drawn. We can see that The lines intersect at the point Q(7, -2). So, the solution to the pair of equations is (7, -2).

Thus, the correct option is (B).