A community for students.
Here's the question you clicked on:
← 55 members online
 0 viewing
mm3591
 one year ago
A(r) is a function that gives the area of a circle with radius r. It can be written in equation form as A(r) = 3.14r2. What is the value of A(5)?
mm3591
 one year ago
A(r) is a function that gives the area of a circle with radius r. It can be written in equation form as A(r) = 3.14r2. What is the value of A(5)?

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and i thing it is r^2 not r2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A(5) = 3.14(5)2 I presume would be 3.142(5) instead of 3.14(5)2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0In this case for area of circle the function is Pi (r)^2. Therefore your 3.142 * (5)^2 = Your answer

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0put r= 5 in A(r) i.e. A(5)= 3.14(5)^2 =3.14x25 =78.5 unit square
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.