ANSWER

EXPLANATION
The given expression is

To find an expression for d in terms of a, b, and c, means we want to make d the subject of the relation.
This means that, we need to isolate d on one side of the equation while all other terms are on the other side.
We subtract from both sides of the equation to obtain,

We now divide through by -1, to get,

Or

The topic is change of subject
Answer:
at what?
Step-by-step explanation:
Answer:
11
Step-by-step explanation:
replace x with -2 and calculate
Solution: We are given that the minimum age required is 18 and the maximum age required is 45.
The range rule of thumb states that range is about four times the standard deviation.

Where s denotes the standard deviation.




Therefore, using the range rule of thumb, the standard deviation is 6.75