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andre [41]
2 years ago
8

The three lines represent the amount of water, over time, in three tanks that are the same size. Which tank is filling most quic

kly?

Mathematics
1 answer:
Tpy6a [65]2 years ago
4 0

Answer:

Tank A

Step-by-step explanation:

Got it right on Kahn

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In an effort to estimate the mean of amount spent per customer for dinner at a major Lawrence restaurant, data were collected fo
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Answer:

The 99% confidence interval for the population mean is 22.96 to 26.64

Step-by-step explanation:

Consider the provided information,

A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,

The confidence interval if 99%.

Thus, 1-α=0.99

α=0.01

Now we need to determine z_{\frac{\alpha}{2}}=z_{0.005}

Now by using z score table we find that  z_{\frac{\alpha}{2}}=2.58

The boundaries of the confidence interval are:

\mu-z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80-2.58\times \frac{5}{\sqrt{49}}=22.96\\\mu+z_{\frac{\alpha}{2}}\times \frac{\sigma}{\sqrt{n} }\\24.80+2.58\times \frac{5}{\sqrt{49}}=26.64

Hence, the 99% confidence interval for the population mean is 22.96 to 26.64

3 0
3 years ago
Can y’all help me out with this
labwork [276]
(a)  P= \frac{A}{e^{rt}} 

(b) e^{rt}= \frac{A}{P} 

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5 0
3 years ago
10 points help please help me no understand math
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Answer:

TX

Step-by-step explanation:

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A drain must be installed with a grade of 1/10 in. of vertical drop per foot of horizontal run. How much of a drop will there be
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Answer:

Step-by-step explanation:

58 ft (1/10 inch/ft) = 5.8 inch

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