188k views
1 vote
HELP PLEASEEEEE. I'm honestly horrible at math and really need help figuring this out.

The question and answer options are in the attachment.

HELP PLEASEEEEE. I'm honestly horrible at math and really need help figuring this-example-1

2 Answers

6 votes
Nevermind, you can solve it, wait

You need to take the derivative of the function

h=0.01x^2-x+27

derivative by x:
0=0.02x-1
1=0.02x
0.02x=1
x=1/0.02=50

Now plug x into the first equation to get h
h=0.01x^2-x+27=0.01*50*50-50+27=25-50+27=2 inches
User Mlinth
by
6.2k points
3 votes
the answer c is correct
User Aditya T
by
6.8k points