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Arisa [49]
3 years ago
12

A)7/25 B)24/25 C)25/7 D)25/24 PLEASE HELP ME !!

Mathematics
1 answer:
sp2606 [1]3 years ago
7 0
It's B since sin is opposite divided by hypotenuse, so find the hypotenuse by using pythag therom and you will get 25, divide opposite of angle C which is 24 by hypotenuse which is 25
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Then add the similar things together

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Answer:

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Step-by-step explanation:

The information provided is:

n=80\\\sigma=30,000\\\bar x=585062.50\\\text{Confidence level} = 90\%

The critical value of <em>z</em> for 90% confidence level is, 1.645.

Compute the 90% confidence interval estimate of the mean annual income of all company presidents as follows:

CI=\bar x\pm z_{\alpha/2}\cdot\frac{\sigma}{\sqrt{n}}\\\\=585062.50\pm 1.645\times\frac{30000}{\sqrt{80}}\\\\=585062.50\pm5517.50\\\\=(579545, 590580)

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4 0
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Vera_Pavlovna [14]

Option D: x \geq 3 is the solution

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<u>Solution:</u>

The solution of the expression can be determined by solving the expression for the variable x.

Thus, we have,

3 x-1 \geq 8

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x \geq 3

Thus, the solution of the expression is x \geq 3

Hence, Option D is the correct answer.

6 0
4 years ago
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