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Alex_Xolod [135]
3 years ago
6

Answer question 13 and I will give brainlest

Mathematics
1 answer:
Stells [14]3 years ago
6 0
Let x be the measure of Angle B.
3x+x=180
4x=180
x=45
Therefore, angle B is 45° and angle A is 135°.
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Which expression is equivalent to 9x – (x – 8)(x + 1) + 10x?
forsale [732]
The answer to this question would be =<span><span><span>−<span>x^2</span></span>+<span>26x</span></span>+<span>8 I think. Sorry if it's wrong</span></span>
3 0
4 years ago
What all are the factors off 453,738
vazorg [7]

Answer:

1, 2, 3, 6, 47, 94, 141, 282, 1609, 3218, 4827, 9654, 75623, 151246, 226869, 453738

Step-by-step explanation:

I looked it up

6 0
3 years ago
Simplify the expression... 0.04(0.7). <br><br> hi
ale4655 [162]

Answer:

0.028

Step-by-step explanation:

Just multiply

I hope I was able to help you out today! If you have any questions about my answer and how I got it, ask me! If you think my answer was helpful hit that thanks button. And give me a rating to I know how I did! If you would like my help in the future with any of your math, science or history questions, add me as a friend so I actively check out your profile! Have a great day!

6 0
3 years ago
Please help me fast!
Ilia_Sergeevich [38]

Answer:

150u+90

Step-by-step explanation:

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3 0
3 years ago
Read 2 more answers
You need to compute the a 90% confidence interval for the population mean. How large a sample should you draw to ensure that the
RSB [31]

Answer:

The sample size required is 102.

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population mean <em>μ</em> is:

CI=\bar x\pm z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}

The margin of error for this interval is:

MOE= z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}

Given:

<em>σ</em> = 9.2

(1 - <em>α</em>)% = 90%

MOE = 1.5

The critical value of <em>z</em> for 90% confidence level is:

z_{0.10/2}=1.645

*Use a <em>z</em>-table.

Compute the value of <em>n</em> as follows:

MOE= z_{\alpha/2}\times\frac{\sigma}{\sqrt{n}}

      n=[\frac{z_{\alpha/2}\times \sigma}{MOE}]^{2}

         =[\frac{1.645\times 9.2}{1.5}]^{2}\\=101.795\\\approx102

Thus, the sample size required is 102.

5 0
3 years ago
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