mustafakhalil02
11.12.2019 •
Mathematics
How do you find the answer to this?
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Answers on questions: Mathematics
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Ответ:
D) {-1}
Step-by-step explanation:
A rational expression is "not defined" when its denominator is zero. Hence to find values of x that make the expression "not defined," you solve the equation ...
denominator = 0
2x +2 = 0 . . . . . . put the actual denominator into the equation
x + 1 = 0 . . . . . divide by 2
x = -1 . . . . . . . . subtract 1
The expression is "not defined" for x in the set {-1}.
Ответ:
Answer
There is more variation in height for men, the mean is 70. The women's height has less variation, the mean is 65.
Explanation
(how to find a mean: The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.) That is just what I did, I have no clue if the answer is correct, im just trying to help.