Answer:
Step-by-step explanation:
x+y = 175
y = 175 - x
f(x) = (x+3)(y+4)
= x(175-x) + 3(175-x) + 4x + 12
= 175x - x² + 525 - 3x + 4x + 12
= -x² +176x + 537
f'(x) = -2x + 176
maximum when x = 88
y = 175-x = 87
Answer:
I hav this same question :(
Step-by-step explanation:
So,

Write in prime factored form.

Cross-cancel
Volume is Length x width x height. So what are three numbers that multiply to 90?
30x30x30=90