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3 years ago

If 3cot^2x - 5cotx = -2, then cotx = _____.

1 answer:

7 0

3cot²x - 5cotx = -2

Lets pretend cotx = t

3t² - 5t = -2
3t² - 5t + 2 = 0

factor polynomial
(3t-2)(t-1) = 0

3t-2 = 0
t-1 = 0

then "t" which is also cotx is equal to 1 or 2/3

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3 years ago

Determine whether the normal sampling distribution can be used. The claim is p < 0.015 and the sample size is n

Svetradugi [14.3K]

Complete Question

Determine whether the normal sampling distribution can be used. The claim is p < 0.015 and the sample size is n=150

Answer:

Normal sampling distribution can not be used

Step-by-step explanation:

From the question we are told that

The null hypothesis is $H_o : p = 0.015$

The alternative hypothesis is $H_a : p < 0.015$

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Generally in order to use normal sampling distribution

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3 years ago

25 POINT GIVEAWAY MONKE GANG

kobusy [5.1K]

Answer:

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2 years ago

Read 2 more answers

Robert slices a large loaf of bread to make 12 sandwiches. He made 3 turkey sandwiches and 5 veggie sandwiches. The rest are ham

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We already know that there are 12 sandwiches.

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3 years ago

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Answer:

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2 years ago