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AnnyKZ [126]
3 years ago
8

For what values of x what is the invalid expression?

Mathematics
1 answer:
sergey [27]3 years ago
7 0

Answer:

C

Step-by-step explanation:

denominator is different from zero so that

{x}^{2}  - 16

(x - 4)(x  + 4)

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A cosmetics company conducted a survey to anticipate potential sales of various new products from its upcoming catalog. The survey was conducted by randomly selecting women from two different age groups with 400 women in each group. The women selected the product that they would most likely purchase when it became available. The results obtained are given in the table shown below.


Products Ages 21 - 30 Ages 31 - 40

Product 1 163 152

Product 2 84 89

Product 3 104 109

Product 4 49 50



Which of the following statements about the data above is true?

A.

The estimates for both age groups show an equal number of women would have voted for Product 3.

3 0
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