3 years ago

Help please and make sure the answer is right! Please :(

Mathematics

1 answer:

likoan [24]3 years ago

8 0

You see how these 2 angles marked are both inside the 2 parallel lines?

And they are on opposite side of the transversal, the line crossing the 2 parallel lines?

These 2 angles are alternate interior angles and they are equal, I think you can do the last part by yourself.

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Suppose the line of best fit for some data points has a slope of 4.915. If the mean of the x-coordinates of the data points is 1

8_murik_8 [283]

Using the slope-intercept formula, y=mx+b where m is the slope of the line and b being the y-intercept, by direct substitution, the y-intercept can be directly be obtained,
y=mx+b
14.347 = (4.915)(10.088) + b
therefore, the y-intercept, b = -35.236

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3 years ago

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What is the slope of the following line?

serg [7]

U use y=mx+b to find the slope, and the answer would be m=-3

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2 years ago

What is 4-6+8 divided by 2+3-7+63times 3535

zvonat [6]

Answer:

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Step-by-step explanation:

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3 years ago

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A random sample of 70 printers discovered that 25 of them were being used in small businesses. find the 95% limit for the popula

kvasek [131]

Answer:

The sample proportion of printers used in small business is:

$\hat{p}=\frac{25}{70}=0.3571$

The 95% confidence interval for the population proportion of printers that are used in small businesses is:

$\hat{p} \pm z_{\frac{0.05}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n} }$

Where:

$z_{\frac{0.05}{2}}=1.96$ is the critical value at 0.05 significance level

$\therefore 0.3571 \pm 1.96 \sqrt{\frac{0.3571(1-0.3571)}{70} }$

$0.3571 \pm 0.1122$

$\left ( 0.3571 - 0.1122, 0.3571 + 0.1122 \right)$

$\left(0.245,0.469 \right)$

Therefore, the 95% confidence interval for the population proportion of printers that are used in small businesses is (0.245 , 0.469)

7 0

3 years ago

I have to turn this in today lol help pls:)

mrs_skeptik [129]

400, if you can buy 4 tickets for $6 you can buy 400 for $600

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3 years ago