Answer:

Step-by-step explanation:
Given

Required
The inverse

Replace f(n) with y

Swap positions of y and n

Make y the subject

Replace y with f'(n)

Answer:
Total surface area is 630cm
Step-by-step explanation:
Surface area = (Perimeter of the base × Length) + (2 × Base Area) = (S1 +S2 + S3)L + bh
4 = -6w + 8(w+2) is an equation, and your job is to "Find the value of w that satisfies this equation."
Perform the indicated multiplication:
4 = -6w + 8w + 16. This becomes:
4 = 2w + 16, which in turn becomes 2w = -14. Thus, w = -7 (answer)