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2 years ago

What is the factorization of the expression below? 9x² - 49

Mathematics

2 answers:

ArbitrLikvidat [17]2 years ago

3 0

(3x+7)(3x-7)

You can distribute these values to give you 9x^2 minus 49. For future reference, when you have no terms including x to the first power the basic numbers in the factored equation (in this case -7 and 7) will be identical with one of them negative in order to cancel this piece out

nasty-shy [4]2 years ago

3 0

Answer:

(3x-7)(3x+7)

Step-by-step explanation:

9x² - 49

(3x)² - (7)²

(3x-7)(3x+7)

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Hey there!

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The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det

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Answer:

The required hypothesis to test is $H_0: \mu\leq 30$ and $H_1: \mu>30$ .

Step-by-step explanation:

Consider the provided information.

It is given that the nightclub has recently surveyed a random sample of n = 250 customers of the club.

She would now like to determine whether or not the mean age of her customers is over 30.

Null hypotheses is represents as $H_0$ . Thus the null hypotheses is shown as:

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