Answer: X = 5
Step-by-step explanation:
The correct formula to solve the problem is:
11x - 8 = 47
First, add 8 to each side.
11x = 55
Solve it by dividing both sides by 11:
X = 5
just need to multiply and axpand ?

Given:
The two functions are:


To find:
The
. Assume
.
Solution:
We have,


Now,





Therefore, the correct option is A.
Answer:
the standard deviations 12.2 if I'm correct.