Answer:
7/22
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given


Required:
Determine the time taken to return to the ground
From the equation given; height (h) is a function of time (t)
When the rocket returns to the ground level, h(t) = 0
Substitute 0 for h(t) in the given equation

becomes

Solve for t in the above equation

Factorize the above expression

Split the expression to 2

Solving the first expression

Divide both sides by -4



Solving the second expression

Add 30 to both sides


Divide both sides by 4



Hence, the values of t are:
and 
shows the time before the launching the rocket
while
shows the time after the rocket returns to the floor
Answer
Hola la respuesta que buscas es bastante simple pero no lo sé
Step-by-step explanation:
Answer:

Step-by-step explanation:

m(slope) = 1
b(y-intercept) = -10

✨Hope this helps✨
Answer:
It's A I'm pretty sureeeeeee I have to type alot cause then I can't submit but ya A:)