Question

stuck on an optimization problem (highlighted in red) please help

Answer 1

\(\large A = wh\)

Answer 2

simply plugin \(h\) value from previous step ?

Answer 3

I believe @ganeshie8 is correct, just use the h from the previous question and multiply times w. This will give you \(A(w)\).

Answer 4

i tried this but unfortunately, its giving me an error message. If you wouldn't mind..could you write this one out?

Answer 5

$$
h=\cfrac{4 (w+80)}{w-16}\\
A(w)=w\cfrac{4 (w+80)}{w-16}=\cfrac{4w (w+80)}{w-16}=\cfrac{4w ^2+320w}{w-16}\\
$$
Does this help?

Answer 6

yes thanks