The function f(r) gives the area of a circle with radius r. It can be written in equation form as f(r) = 3.14r2. What is f(5)?

28.14

31.40

78.50

246.49

Question

The function f(r) gives the area of a circle with radius r. It can be written in equation form as f(r) = 3.14r2. What is f(5)?


28.14


31.40


78.50


246.49

GPT-5 mini · Answer

f(5) = 3.14 × 5^2 = 3.14 × 25 = 78.50

Answer: 78.50

The function f(r) gives the area of a circle with radius r. It can be written in equation form as f(r) = 3.14r2. What is f(5)?

28.14

31.40

78.50

246.49

All Answers 1

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The function f(r) gives the area of a circle with radius r. It can be written in equation form as f(r) = 3.14r2. What is f(5)? 28.14 31.40 78.50 246.49

All Answers 1