The function f(x) =4x+3 represents the length of a rectangle. The function g(x)=2x-5 represents the width of the rectangle.Use (
f•g)(4) to determine the area of a rectangle
2 answers:
Answer: 32x-68
Step-by-step explanation:
(f•g) is equal to f(gx)
f(x)=4(2x-5)+3
Which is 8x-20+3=8x-17
Now multiply by 4.
4(8x-17)
= 32x-68
Answer: 57 square units.
Step-by-step explanation:
Given : The function
represents the length of a rectangle.
The function
represents the width of the rectangle.
Then , the area of the rectangle is given by :_

At x= 4,

Hence, the area of a rectangle = 57 square units.
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