The correct answer is a. 3x + 6
In order to find a compound function, you must use the first letter in the function (in this case f) and plug the second letter (g) in where you see x's.
f(x) = x + 2
f(g(x)) = (g(x)) + 2
f(g(x)) = (3x + 4) + 2
f(g(x)) = 3x + 6
Answer:
7x7x7
Step-by-step explanation:
The answer is 63, 42*.5= 21 42+21=63
Answer: The margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.
Step-by-step explanation:
Since we have given that
Sample size = 400
Mean = $357.75
Standard deviation = $37.89
At 95% confidence level, z = 1.96
We first find the margin of error.
Margin of error is given by

95% confidence interval would be

Hence, the margin of error = 3.71, confidence interval = (354.04, 361.46) and it means that mean cost is lies within the confidence interval.
In word form it would be:
Twenty million, four hundred eighty-four thousand, one hundred sixty-three
In expanded form it would be:
20,484,163
<span>= 20,000,000 + 400,000 + 80,000 + 4,000 + 100 + 60 + 3
</span>Hope I Helped!!