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NeTakaya
3 years ago
13

P=-40q+163, what is the relationship between p and q?

Mathematics
1 answer:
Alex Ar [27]3 years ago
4 0
P=-40q+163 

p-163=-40q 

- \dfrac{p-163}{40}=q 

q= - \dfrac{p-163}{40}
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A class survey in a large class for first-year college students asked, “About how many minutes do you study on a typical weeknig
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The confidence interval for the population mean is given by :-

\mu\ \pm z_{\alpha/2}\times\dfrac{\sigma}{\sqrt{n}}

Given : Sample size = 463

\mu=118\text{ minutes}

\sigma=65\text{ minutes}

Significance level : \alpha=1-0.99=0.01

Critical value : z_{\alpha/2}=z_{0.005}=\pm2.576

We assume that the population is normally distributed.

Now, the 90% confidence interval for the population mean will be :-

118\ \pm\ 2.576\times\dfrac{65}{\sqrt{463}} \\\\\approx118\pm7.78=(118-7.78\ ,\ 118+7.78)=(110.22,\ 125.78)

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3 years ago
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5 0
2 years ago
Joe worked 12 hours and packed 32 cartons. Bob worked 25 hours and packed 64 cartons. Did Joe and Bobwork at the same rate?O YES
Bas_tet [7]

To be able to compare the rates, we will write them in fraction form.

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\frac{64}{25}\text{.}

Simplifying the above fractions, we get:

\begin{gathered} \frac{32}{12}=\frac{8}{3}, \\ \frac{64}{25}=\frac{64}{25}\text{.} \end{gathered}

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1 year ago
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Misha Larkins [42]

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3 years ago
The radius of a circle is 10. Using π, which equation expresses the ratio of the circumference of the circle to the circle's dia
aleksley [76]

The ratio of circumference to diameter is independent of the radius.



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=> 


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= C/D = π

7 0
4 years ago
Read 2 more answers
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