Answer:
Step-by-step explanation:
4x^2+4x+1
Its wrong for x = 2
y = (3/4) * 2^2 = 3 (NOT 4)
Let the cost for renting be y and the number of hours be x
then:
y=kx
where:
k is the constant of proportionality
k=y/x
y=$32.5 when x=5 hours
thus;
k=32.5/5
k=6.5
hence the equation is:
y=6.5x
thus the value of y when x=8 hours will be:
y=6.5(8)=$52
Answer:'
<span>A y = $6.5x, y = $52.00</span>
Answer:
The time that the rocket will hit the ground is 12.87 seconds.
Step-by-step explanation:
Given : The rocket is launched from a tower
. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation.
To find : The time that the rocket will hit the ground ?
Solution :
When the rocket hit the ground i.e. height became zero y=0,
Equation is 
Substitute y=0,

Using quadratic formula, 




Reject negative value.
The time taken is 12.87 seconds.