3 years ago

The graph of y= 3 + 2x -x is shown.

Mathematics

1 answer:

DochEvi [55]3 years ago

3 0

Answer:

Step-by-step explanation:

(1, 4)

(-1, 0), (3, 0)

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Answer:

1050

Step-by-step explanation:

There are 30 teachers.

1:35

Multiply each part of the ratio by 30.

1×30:35×30

30:1050

There are 1050 learners.

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3 years ago

What fraction is equal to 9/36

Lemur [1.5K]

The answer is 1 / 4

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ANTONII [103]

Answer:

Step-by-step explanation:

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3 years ago

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Marta_Voda [28]

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3 years ago

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The u.s. department of health and human services collected sample data for 772 males between the ages of 18 and 24. that sample

soldier1979 [14.2K]

The 99% confidence interval for the true mean is given by:

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

where:

$\bar{x}$ is the sample mean = 69.7
$\sigma$ is the standard deviation = 2.8
$z_{\alpha/2}$ is the test statistics = 2.58 for for 99% confidentce interval.
n is the sample size = 772.

Therefore, the 99% confidence interval is:

$69.7\pm2.58\left( \frac{2.8}{\sqrt{772}} \right)=69.7\pm2.58(0.1008) \\ \\ =69.7-0.26\leq\mu\leq69.7+0.26 \\ \\ =69.44\leq\mu\leq69.96$

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3 years ago

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