Answer:
6.11 seconds
Step-by-step explanation:
Given

Required
When will it hit the ground?
When it hits the ground, f(t) = 0.
So, we have:

Solve quadratic equation using formula




Split
or 
or 
or 
Time can not be negative. So:

Answer:
The answers is 8.06on DeltaMath
Step-by-step explanation:
Step-by-step explanation:
f(x) = x² + 2x - 4
g(x) = 3x + 1
f(g(x)) = f(3x + 1)
f(3x + 1) = [3x + 1]² + 2[3x + 1] - 4
= 9x² + 6x + 1 + 6x + 2 - 4
= 9x² + 12x -1
Answer:
1.5 as a fraction is written as 3/2
Step-by-step explanation:
The ratio 1.5 which is read "1.5 to 1" means that the length is 1.5 times the width. So, for example if your paper is 2 inches in width then the length is 1.5 × 2 = 3 inches.