Ask Question
22 September, 12:42

Suppose you have 76 feet of fencing to enclose a rectangular dog pen. The function A = 38x - x2, where x = width, gives you the area of the dog pen in square feet. What width gives you the maximum area? What is the maximum area? Round to the nearest tenth as necessary.

width = 19 ft; area = 361 ft2

width = 38 ft; area = 760 ft2

width = 38 ft; area = 361 ft2

width = 19 ft; area = 1083 ft2

+4
Answers (1)
  1. 22 September, 13:11
    0
    The answer to your question is width = 19 ft; area = 361 ft²

    Step-by-step explanation:

    Data

    A = 38x - x²

    Process

    1. - Find the derivative of A

    A' = 38 - 2x

    2. - Equal to zero

    38 - 2x = 0

    3. - Solve for x

    38 = 2x

    x = 38/2

    x = 19 ft

    4. - Find the area

    A = 38 (19) - (19) ²

    - Simplification

    A = 722 - 361

    -Result

    A = 361 ft²
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Suppose you have 76 feet of fencing to enclose a rectangular dog pen. The function A = 38x - x2, where x = width, gives you the area of the ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers