An octagon has eight sides
i believe the answer is 15.99
hope this helped!
Answer: Down below mate
Step-by-step explanation:
1.
f(x) =-2x^2+12x+1
f'(x) =-4x+12
0=-4x+12
-12=-4x
3=x
Highest value at x=3
f(3)= - 2*3^2+12*3+1
f(3)=-18+37
=19
Maximum value =19
Ask if u have questions