B? I believe the answer is B
Explanation;
The total surface area is going to be the area of all sides added together.
In a rectangular prism there are six sides but the good news is they come in pairs meaning you only have to find the area of three sides.
To find the area of a side multiply its side lengths by each other.
After you found the area of three sides multiply each one by 2.
Then take the three numbers you get from that, add em all up, and there’s your answer!!
Hope this helped.
Answer:

Therefore, there is 0.0062 probability that more than 20% of Americans do not have health insurance.
Step-by-step explanation:
Sixteen percent of Americans do not have health insurance. Suppose a simple random sample of 500.
From the above information,
p = 16% = 0.16
n = 500
The mean is given by

The standard deviation is given by

What is the probability that more than 20% do not have health insurance?
We can use the Normal distribution as an approximation to the Binomial distribution since the following conditions are satisfied.
n×p ≥ 5 (satisfied)
n×(1 - p) ≥ 5 (satisfied)
So the probability is given by
500×0.20 = 100

We need to consider the continuity correction factor whenever we use continuous probability distribution (Normal distribution) to approximate discrete probability distribution (Binomial distribution).

The z-score corresponding to 2.50 is 0.9938

Therefore, there is 0.0062 probability that more than 20% of Americans do not have health insurance.
Answer:
c
Step-by-step explanation: