Answer:
D
Step-by-step explanation:
Height: h
Length: 2h + 15
Area = length × width
4h² + 42h + 90
2(2h² + 21h + 45)
2[2h² + 15h + 6h + 45]
2[h(2h + 15) + 3(2h + 15)]
2(h + 3)(2h + 15)
Width = 2(h+3) = 2h + 6
Length: 2h + 15
Difference:
(2h + 15) - (2h + 6)
2h + 15 - 2h - 6
9
Width is 9 feet shorter than the length
20+20+24+24+30+30=148 square meters
The function value of f(12) is 27.
<h3>How to illustrate the function?</h3>
It should be noted that a function is simply used to show the relationship that exists between the variables.
Therefore, based on the information, the function f(12) will be:
3x - 9
f(12) = 3(12) - 9
= 36 - 9
= 27
The function value is 27
Learn more about functions on:
brainly.com/question/25639609
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Complete question:
If f(x) = 3x - 9. Find the function value of f(12).
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