Answer:
3 seconds
Step-by-step explanation:
When the ball hits the ground, the height will be 0. Therefore, you can substitute 0 in for the value of f(t), hence the equation will be:
0 = -16t^2 + 32t + 48
You can then factor out -16:
0 = t^2 - 2t - 3
Factor:
0 = (t-3)(t+1)
t = 3, -1
However -1 is an extraneous solution because time cannot be negative. Therefore, the answer is 3 seconds.
Answer:
x = 10
Step-by-step explanation:
Since it is a straight line, the total degrees would be 180
5x + 13x = 180°
18x = 180°
Divide both sides by 18
x = 10
Answer:
31,684
Step-by-step explanation:
6 miles is 31,680 feet.
I think its number 5, sorry if im wrong