The answer is No. The mean of the sample and that of the population can not be equal. As the sample moves closer to the population, the mean of sample moves closer to the mean of the population
Answer:
2s or 3s
Step-by-step explanation:
Given the function that models the height of the object as;
h(t) = - 16t^2 + 80t + 96
The ball reaches the ground when h = 0
Substitute
0 = - 16t^2 + 80t + 96
Divide through by -16
0 = t²-5t-6
t²-5t-6 = 0
t²-2t-3t+6 = 0
t(t-2)-3(t-2) = 0
(tt-2)(t-3) = 0
t - 2 = 0 and t-3 = 0
t = 2 and 3s
Hence it will take the ball 2s or 3s to reach the ground
Answer:
2/7, 1/10, 2/15
Step-by-step explanation:
hope this helps!!
Answer:
156
Step-by-step explanation:
to find length you do area/width. So 1248/8=156
