3 years ago

Solve the inequality. m/-5 < or = 4

Mathematics

1 answer:

Inessa05 [86]3 years ago

4 0

Answer:

M < or = -20

Step-by-step explanation:

Brainlist please

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(x, y) --> (y, x)

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3 years ago

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If a + b = 15, find the maximum value of a × b

Otrada [13]

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Step-by-step explanation:

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In the 1970s, due to world events, there was a gasoline shortage in the United States. There were often long lines of cars waiti

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Answer:

A line of cars will be about 9650000 feet

Step-by-step explanation:

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$9.65*1,000,000=9650000$

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3 years ago

Use the normal distribution to find a confidence interval for a proportion p given the relevant sample results. Give the best po

Brrunno [24]

Answer: (0.63, 7.07)

Step-by-step explanation:

The confidence interval for population proportion is given by :-

$\hat{p}\pm z_{\alpha/2}\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

Given : $\hat{p} =0.7$ ; $n=110$

Significance level : $1-0.90=0.1$

Critical value : $z_{\alpha/2}=1.645$

Now, a 90% confidence interval for population proportion will be :-

$0.7\pm (1.645)\sqrt{\dfrac{0.7(1-0.7)}{110}}\\\\\approx0.7\pm0.07\\\\=(0.7-0.07,0.7+0.07)=(0.63,\ 7.07)$

Hence, a 90% confidence interval for population proportion = (0.63, 7.07)

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2 years ago

A system of two equations contains one quadratic equation and one linear equation. the quadratic system of the equation is y=x^2

ruslelena [56]

Suppose the line is y=mx+b
when x=3, y=15, so 15=3m+b
when x=-1, y=-13, so -13=-m+b
solve the system of these two equation, you get m=7, b=-6
so the linear equation is y=7x-6

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3 years ago