<span>solution:
we have, mean =8.4 hrs, std. deviation = 1.8 hrs, sample size n = 40 , X = 8.9
Probability(X<8.9) = ?
we know that, Z = (X - mean)/(std. deviation/(sqrt. n)) = (8.9 - 8.4)/(1.8/(sqrt.40))
Z = 1.7568
from standard normal probabilities table, we have , P(Z<1.7568) = 0.9608
Hence, probability that the mean rebuild time is less than 8.9 hours is 0.9608</span>
Answer:
22 ft.
Step-by-step explanation:
First we can get the total change in elevation, which should be the final elevation minus the initial elevation:
(98ft)-(10ft)=88ft
Then, to get the change in 4 equal intervals, we can divide the total change in elevation by 4.
(88/4)ft=22ft
So during each of the four intervals, assuming they were four equal intervals, the diver descends 22ft.
The answer for this question is 234
Answer:
A. 15.6
Step-by-step explanation:
Do a² + b² = c²
Your a is 8 and you b is 12 plug in
8² + 12² = c²
64 + 144 = c²
208 = c² (square root them)
14.4 = c
15.6 is the closest to 14.4
And the person who you are txting if it says *not delivered they prob blocked you.
Hope this helps ya! Keep smiling!