Answer: C
Step-by-step explanation:
Answer:
the answer is 11.7
Step-by-step explanation:
Given that the height of the ball has been modeled by h=120t-16t^2, the reasonable range will be found as follows:
maximum height is attained when h'(t)=0
given h=120t-16t^2
h'(t)=120-32t=0
thus solving for t, we get:
t=3.75 sec
thus the maximum time attained will be:
120(3.75)-16(3.75)^2=225 ft
Therefore the reasonable range will be [0≤h(t)≤225]
Distance from 5 to 12 on the number lines = 12 - 5 = 7
This distance is expressed by the expression 3x - 2.
So,
3x - 2 = 7
3x = 7 + 2
3x = 9
x =9/3
x = 3
Thus, the value of x is 3 .