Answer:
it will take 5.5 seconds to hit the ground
Step-by-step explanation:
A projectile is shot vertically from the ground level. It’s height h, in feet, after t seconds is given by 
When the projectile hits the ground then the height becomes 0


GCF is -8t

now set each factor =0 and solve for t


So it will take 5.5 seconds to hit the ground
Answer:
Step-by-step explanation:
For an item that cost $ 42, Mick paid $2.94 in sales tax. So percentage of sales tax is

And we have to find the sales tax that he paid for an item that cost $58, and for that , we have to find 7% of 58 , that is

So he pays a sales tax of $4.06 .
Answer:
x = -9/4
Step-by-step explanation:
We have:
(x + 9)/x = -3
(x + 9) = -3x
3x + x + 9 = 0
4x + 9 = 0
4x = -9
x = -9/4
5% of 25 km is:
0.05*25 = 1.25 km
25 - 1.25 = 23.75
25 + 1.25 = 26.25
The possible range is (23.75, 26.25). Hope it helps