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3 years ago

Write an equation in slope-intercept form for the line with the slope -1/5 and y-intercept 9

Mathematics

1 answer:

ale4655 [162]3 years ago

4 0

Answer:

$y=-\frac{1}{5}x+9$

Step-by-step explanation:

y=mx+b

m = slope

b = y-intercept

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I'll help you darling

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3 years ago

For the function y=3x−1, when the input (x)= 7, the output (y) = ?

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Answer:

y=3x-1 (replace x with 7 )

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2 years ago

Use the given data to find the 95% confidence interval estimate of the population mean μ. Assume that the population has a norma

loris [4]

Answer: For 95% Confidence Interval:

Upper Limit = 110.2

Lower Limit = 97.8

95% Confidence Interval = [97.8, 110.2]

Step-by-step explanation:

Given that,

Mean(M) = 104

Standard Deviation(SD) = 10

Sample Size(n) = 10

Formula for calculating 95% Confidence Interval are as follows:

Standard error(SE) = $\frac{SD}{\sqrt{n} }$

= $\frac{10}{\sqrt{10} }$

= 3.164

⇒ M ± $Z_{0.95}$ × SE

= 104 ± (1.96)(3.164)

= 104 ± 6.20

∴ Upper Limit = 104 + 6.20 = 110.2

Lower Limit = 104 - 6.20 = 97.8

So,

95% Confidence Interval = [97.8, 110.2]

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3 years ago