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xxMikexx [17]
3 years ago
10

5+21^6-(-6)*7÷17 ................

Mathematics
1 answer:
german3 years ago
7 0
<h2>Answer:  Exact Form:</h2><h2> 1458024184/17</h2><h2> Decimal Form:</h2><h2> 85766128.4705882</h2><h2> Mixed Number Form:</h2><h2> 85766128 8/17 ______________________________________ </h2><h3>Honey, to find the answer first find the common denominator.</h3><h3> 5 ⋅ 17/17 + 21^6 ⋅ 17/17 - −(−6)  ⋅7 ÷ 17 </h3><h3 /><h3> Next combine fractions.</h3><h3> 85 + 1458024057 + 42/17</h3><h3 /><h3>  Finally simplify the numerator.</h3><h3> 1458024184/17  </h3><h3 /><h3>The result can be shown in multiple forms.</h3><h3> Exact Form: 1458024184/17 or \frac{1458024184}{17}</h3><h3> Decimal Form: 85766128.4705882</h3><h3> Mixed Number Form: 85766128 8/17 or 85766128 \frac{8}{17} </h3>
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From F.S 1, consider this series : 8, 1, 8, 8, 64, 64*8. 

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<span>From F.S 2, let the series be </span><span><span>a,b,ab,a<span>b2</span>,<span>a2</span><span>b3</span>,<span>a3</span><span>b5</span></span><span>a,b,ab,a<span>b2</span>,<span>a2</span><span>b3</span>,<span>a3</span><span>b5</span></span></span><span>. Now we know that </span><span><span>a<span>b2</span>=1</span><span>a<span>b2</span>=1</span></span>. The required difference =<span><span><span>a3</span><span>b5</span>−ab=ab(<span>a2</span><span>b4</span>−1)=ab[(a<span>b2</span><span>)2</span>−1]</span><span><span>a3</span><span>b5</span>−ab=ab(<span>a2</span><span>b4</span>−1)=ab[(a<span>b2</span><span>)2</span>−1]</span></span><span>= 0.Sufficient.</span>
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Answer:

C) 11

Step-by-step explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

Since the Confidence is 0.90 or 90%, the value of \alpha=0.1 and \alpha/2 =0.05, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.05,0,1)".And we see that z_{\alpha/2}=1.64

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{s}{\sqrt{n}}    

And on this case we have that ME =7 and we are interested in order to find the value of n, if we solve n from the last equation we got:

n=(\frac{z_{\alpha/2} s}{ME})^2  

And replacing the values that we got we have:

n=(\frac{1.64(14)}{7})^2 =10.758 \approx 11

C) 11

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4 years ago
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