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Mila [183]
2 years ago
15

Select the correct answer.

Mathematics
1 answer:
stira [4]2 years ago
3 0
B, because the lines connect at (1,-4) and (4,-1)
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Miranda owes max $120.00. She pays back 30% of what she owes. How much does she have left to pay back?
Mamont248 [21]

Answer:

I’m pretty sure the answer is $84

Step-by-step explanation:

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|14+x|-5=k solve for k​
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Answer:

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Step-by-step explanation:

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3 years ago
what is the probability of seeing a sample mean for 21 observations less or equal to the sample mean that we observed
kramer

Answer:

P(x \le 21) = 0.69146

Step-by-step explanation:

The missing parameters are:

n = 64 --- population

\mu = 20 --- population mean

\sigma = 16 -- population standard deviation

Required

P(x \le 21)

First, calculate the sample standard deviation

\sigma_x = \frac{\sigma}{\sqrt n}

\sigma_x = \frac{16}{\sqrt {64}}

\sigma_x = \frac{16}{8}

\sigma_x = 2

Next, calculate the sample mean \bar_x

\bar x = \mu

So:

\bar x = 20

So, we have:

\sigma_x = 2

\bar x = 20

x = 21

Calculate the z score

x = \frac{x - \mu}{\sigma}

x = \frac{21 - 20}{2}

x = \frac{1}{2}

x = 0.50

So, we have:

P(x \le 21) = P(z \le 0.50)

From the z table

P(z \le 0.50) = 0.69146

So:

P(x \le 21) = 0.69146

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3 years ago
Find the volume of a pyramid with a square base where the area of the base is 8.3 m 2 and the height of the pyramid is 9.8 m
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Answer:

245.56

Step-by-step explanation:

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