3 years ago

Solve the system by substitution. 2x + 10y = -32 x = -9y

Mathematics

1 answer:

Ad libitum [116K]3 years ago

3 0

Answer:

point form (-36,4) equation form x=−36,y=4

Step-by-step explanation:

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The lengths of text messages are normally distributed with a population standard deviation of 4 characters and an unknown popula

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Answer:

The answer is " $(25.32, 30.68)$ "

Step-by-step explanation:

Given:

$\bar x = 28\\\\ \sigma = 4\\\\n =26\\\\$

When $98\%$ confidence level so, the z:

$\alpha = 1 - 98\% = 1 - 0.98 = 0.2\\\\\frac{\alpha}{2} =\frac{0.02}{2} = 0.01\\\\Z_{\frac{\alpha}{2}} = Z_{0.01} = 1.645\ \ \ ( Using \ z \ table )\\\\$

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When 98% confidence interval estimate of the population mean is,

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Step-by-step explanation:

You will make 10 triangles

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