Lisa needs to get her roof re-done The roofing company charges a $500 flat fee They also charge $1.25 per square foot of the roo
2 answers:
You might be interested in
Answer:
0.8413 is the required probability.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 4.00 centimeters
Standard Deviation, σ = 0.60 centimeters
Sample size, n = 16
We are given that the distribution of average diameter is a bell shaped distribution that is a normal distribution.
Formula:
Standard error due to sampling =
P(diameter of sample is more than 3.85 centimeter)
P(x > 3.85)
Calculation the value from standard normal z table, we have,
0.8413 is the probability that the the average diameter of sample of 16 sand dollars is more than 3.85 centimeters.
Answer:
Volume of a right prism = 65 cubic inches
Its height is increased by a factor of 20.
To find:
The new volume of the prism if the other dimensions do not change.
Solution:
The volume of a prism is:
Where, B is the base area and h is the height.
A right prism has a volume of 65 cubic inches.
The height of prism is increased by a factor of 20. So, the new volume is:
The volume of the new prism is 1300 in³.
Therefore, the correct option is B.