We get t= 7.22 and t=0.28
The correct options are Option A and Option G
The height h of toy rocket at time t seconds after launch is given by the equation
We need to find how many seconds until the rocket is 40 feet?
We are given height of rocket h(t) = 40 feet
and we need to find time t
Using the equation we can find time t
We have h(t)=40
Now, we will solve the quadratic equation using quadratic formula:
We have a =16, b=-120 and c=32
Putting values and finding t
So, we get t= 7.22 and t=0.28
7x - 7
In this equation you are going to add like terms.
The like terms you have are the terms with x and then the terms without the x.
So 4x + 3x = 7x
5 - 12 = -7
So your answer is 7x-7