Answer: 
Step-by-step explanation:
Given
inclination is 
Mountain is
high
Cable is tied
from the base of the mountain
From the figure, length of the shortest path is 
It is given by using Pythagoras theorem

Answer:
-4.6
Step-by-step explanation:
-2.3-2.3=-4.6
Answer:
The probability that the sample mean will lie within 2 values of μ is 0.9544.
Step-by-step explanation:
Here
- the sample size is given as 100
- the standard deviation is 10
The probability that the sample mean lies with 2 of the value of μ is given as

Here converting the values in z form gives

Substituting values

From z table

So the probability that the sample mean will lie within 2 values of μ is 0.9544.