Answer:
30 s
Step-by-step explanation:
When the ball hits the ground h=0. To find the time t when this happens we must solve the equation h=0.
●h= 0
● -12t^2+360t =0
● t(-12t +360) = 0
● t = 0 or -12t +360 =0
● t=0 or -12t = -360
● t=0 or 12t =360
● t=0 or t=360/12
● t=0 or t= 30
The equation has two solutions.
The ball was fired with an initial speed of 800 feet per second so it cannot hit the ground at t=0.
So the ball hits the ground after 30 s.
Disagree, the fractions are unequal and 10/15=66% while 15/20=75%
Answer:
Step-by-step explanation:
To find the quotient, convert the mixed number to an improper fraction first
Find the quotient now
Simplify
Divide by 
both numerator and denominator
Convert to a mixed number
Answer: he could watch a maximum of 6 movies with plan A and still pay the same but the better deal is plan B. I hope that this helps! :)
Step-by-step explanation:
