A=w*h
p=2w+2h
if w=x, then h=7-x.
a(x) = x*(7-x)
a(x) = 7x - x^2
to find the largest area we need to derivative a(x):
a'(x) = 7 - 2x = 0 --> x = 3.5
therefore:
maxArea = a(3.5) = 3.5 * 3.5 = 12.25
Answer:
4b+b=70
5b=70
b=14
Step-by-step explanation:
4(14)+(14)=70
Answer:
the cat should be about 6 or 7 inches away
Step-by-step explanation:
I'm sorry if I was wrong I hope I help
It’s a reflection across the line x=3
Answer:
40
Step-by-step explanation: