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2 years ago

Solve, y=8x-2, in order to put on a graph

Mathematics

1 answer:

Daniel [21]2 years ago

7 0

Answer:

$\mathrm{X\:Intercepts}:\:\left(\frac{1}{4},\:0\right),\:\mathrm{Y\:Intercepts}:\:\left(0,\:-2\right)$

Step-by-step explanation:

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When does a football hurled across a field have the lowest gravity force (A) when it has just left the quarterbacks hand. (B) wh

Svetllana [295]

Answer:

Step-by-step explanation:

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3 years ago

A fourth grade class of 28 students is given a standardized math test. The mean score of the 12 boys is 25 with a standard devia

Mashcka [7]

Answer:

The standard error for the sampling distribution is 1.323.

Step-by-step explanation:

Let <em>X</em> = scores of girls and <em>Y</em> = scores of boys.

The information provided is:

$\bar x=24\\s_{x}=4\\n_{x}=16\\\bar y=25\\s_{y}=3\\n_{y}=12$

As the population standard deviations are not known, use a pooled standard deviation to estimate the standard error of the sampling distribution.

The formula of pooled standard deviation is:

$S_{p}=\sqrt{\frac{s_{x}^{2}}{n_{x}^{2}}+\frac{s_{y}^{2}}{n_{y}^{2}}}$

Compute the standard error for the sampling distribution as follows:

$SE=\sqrt{\frac{s_{x}^{2}}{n_{x}^{2}}+\frac{s_{y}^{2}}{n_{y}^{2}}}=\sqrt{\frac{4^{2}}{16}+\frac{3^{2}}{12}}=\sqrt{1+\frac{9}{12}}=\sqrt{\frac{21}{12}}=1.323$

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3 years ago

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Answer:

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Step-by-step explanation:

12.6 + [1/2]2 = 13.6

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4 years ago