Answer:
Time to land on 11ft is 4.25 seconds
Step-by-step explanation:
Given

Required
Solve for t when height is 11ft
This implies that 
So: substitute 11 for y in 

Collect Like Terms


Express both sides as squares


Take square roots of both sides (ignore negative)

Solve for t


Hence, time to land on 11ft is 4.25 seconds
Answer:
<em>a </em>- 13
Step-by-step explanation:
a- 13 because you are taking 13 away from a
16ft= 192 in
8ft= 96 in
192/36= 96/16 = 6
Your drawing is 1/6 of the actual billboard
Answer:
6x^2+10x-6=0
Step-by-step explanation:
First, you need to add all like terms:
6x^2+8x-6=-2x
Now move the -2x to the other side:
6x^2+10x-6=0