Answer:
Third option is correct.
Step-by-step explanation:
The given model is
Where, h(t) is heigth of rock after time t (in seconds).
The initial height of rock is 124 ft.
The leading coefficient is negative. It means it is a downward parabola.
First we have to the x-intercepts of the function.
Using quadratic formula, we get
and
It means rock remains in the air between .
The value of t can not be negative, therefore rock remains in the air between .
Third option is correct.
Answer:
32.5x
Step-by-step explanation:
She earns 32.5 dollars every hour, so if she worked 14 hours she would earn 455 dollars.
Answer:
1 a=-5 b=52 c=-52
it is the required answer