Answer:
A) width * length = 180 OR width = 180 / length
B) width = length -3
Substituting A) into B) we get
180 / length = length - 3
180 = length^2 - 3 * length
length^2 -3 * length -180 = 0
Factoring:
(len +12) * (len - 15) = 0
length = 15
Therefore width = (length -3) = 12
Step-by-step explanation:
the correct answer is 4 and 21
V / ( pi r^2) = h
V = pi r^2 h
Divide each side by pi r^2
V / ( pi r^2) = pi r^2 h / pi r^2
its C
