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ANTONII [103]
3 years ago
12

Which description can be written as the expression 40 n minus 15?

Mathematics
2 answers:
Natalija [7]3 years ago
5 0

Answer:

Hasaan wants to know how much money he would have after forty hours of work if fifteen dollars is taken out of his pay for taxes.

Step-by-step explanation:

It's Most likely to be the answer

ExtremeBDS [4]3 years ago
4 0

Answer:

C

Step-by-step explanation:

The answer is C cause the amount Hasaan wants know he made after working for forty hours represents 40n and the fifteen dollars taken out of his paycheck represent -15.

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What is 4 divided by 610
grandymaker [24]

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4/610=0.00655737704918

Step-by-step explanation:

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2 years ago
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To estimate a population mean, the sample size needed to provide a margin of error of 3 or less with a 95% confidence when the p
Over [174]

Answer:

The minimum sample needed to provide a margin of error of 3 or less is 52.

Step-by-step explanation:

The confidence interval for population mean (<em>μ</em>) is:

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

The margin of error is:

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

<u>Given:</u>

MOE = 3

<em>σ </em>= 11

The critical value for 95% confidence interval is: z_{\alpha /2}=1.96

**Use the <em>z</em>-table for critical values.

Compute the sample size (<em>n</em>) as follows:

MOE= z_{\alpha /2}\frac{\sigma}{\sqrt{n}}\\3=1.96\times \frac{11}{\sqrt{n}}\\n=(\frac{1.96\times11}{3} )^{2}\\=51.65\\\approx52

Thus, the minimum sample needed to provide a margin of error of 3 or less is 52.

7 0
3 years ago
What is 6X squared +17 X +13+4 over X -1 multiplied by X minus one
Free_Kalibri [48]

Answer:

6x^{3} + 11^{2} - 4x -9

Step-by-step explanation:

i) (6x^{2} + 17x  + 13  + \frac{4}{x-1} ) \times (x - 1) = (6x^{2} + 17x  + 13)\times (x - 1) + 4 = 6x^{3} + 11^{2} - 4x -9

8 0
3 years ago
Which of the following are equivalent to
Vladimir79 [104]
A, c, d, f
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Given that BD is the median of AABC and that AABC is isosceles, congruence postulate SSS can be used to prove which of the follo
marusya05 [52]

Answer:

B.

Step-by-step explanation:

Because of isosceles triangle, AB = CB.

Because of the median, AD = CD.

Because of congruence of segments being reflexive, BD = BD.

By SSS, the triangles BAD and BCD are congruent.

Answer: B.

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2 years ago
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