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Question 13(Multiple Choice Worth 4 points)(06.04 MC)The function f(x) = 4x + 30 represents the length of a rectangle. The function g(x) = x - 1 represents the width of the rectangle. Use (f•g)(5) to determine the area of the rectangle.44650200

Question 13Multiple Choice Worth 4 points0604 MCThe function fx 4x 30 represents the length of a rectangle The function gx x 1 represents the width of the recta class=

Respuesta :

From the problem, the length of the rectangle is f(x) = 4x + 30 and the width is g(x) = x - 1.

To find the area, use (f · g)(5)

That will be :

[tex]\begin{gathered} (f\cdot g)(x)=(4x+30)(x-1) \\ (f\cdot g)(5)=(4\times5+30)(5-1) \\ (f\cdot g)(5)=50(4) \\ (f\cdot g)(5)=200 \end{gathered}[/tex]

ANSWER :

The area is 200