Answer:
Step-by-step explanation:
Let X be the mean height of peak patrons,
Then X is normal with mean = 68 inches and std dev = 12 inches
Whenever x<54, they are not allowed to use the ride.
x=54 means z=
The z for 54" is 
From std normal table we find that the area to the left of -1.17 is
0.3790
P(X>54) =1-0.3790
=0.6210=62.10%
P(54<x<68) = 0.5-0.3790 =0.121=12.1%
P(X>68) =0.5%=50%
Answer:
181.8181818181...
Step-by-step explanation:
50 = 30 + 11X
X = 181.81818181...
Answer:
- | -5 |
Step-by-step explanation:
- | -5 | is basically saying minus -5
and -5 minus the negative is a positive
And when it asks for the greatest value, positive numbers are always greater.
:)
Answer: Period = 13.15 s
Solution:
The period of a pendulum is the time of pendulum takes to swing back and forth.
Function 
Where,
L is length of pendulum in feet
T is time of pendulum in seconds
We have to calculate the time of pendulum whose length is 140 feet.
So, we substitute L=140 into formula and to solve for t
We get t,
s
Period = 13.15 s
The last option is correct.
