Answer:
Sure!
Step-by-step explanation:
The answer to this question is D
Answer:
x = 
It is written like this in latex code: $\frac{-3\pm\sqrt{65}}{4}$
Step-by-step explanation:
It says the net price IS 306, so doesn it already give you the net price?!?!?1?1
S(r) = 2pi*r*h + 2pi*r^2
S ' (r) = 2pi*h + 2*2*pi*r .... differentiate with respect to r
S ' (r) = 2pi*h + 4pi*r
S ' (3) = 2pi*h + 4pi*3 ... plug in r = 3
S ' (3) = 2pi*h + 12pi
S ' (3) = 2pi*2 + 12pi .... plug in h = 2
S ' (3) = 4pi + 12pi
S ' (3) = 16pi
---------------
Answer: D) 16pi