No solution for the quadratic equation because of the √-20
Let:
100%---------------->24h
30%------------------>xh
Using cross multiplication:
I think it’s 3x
Hope it helps
Answer:
18
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is

here [ a, b ] = [ 1, 5 ]
f(b) = f(5) = 3 × 5² = 75
f(a) = f(1) = 3 × 1² = 3, hence
average rate of change =
=
= 18