3 years ago

Find the slope and the y-intercept for the line. y=2/5x

Mathematics

1 answer:

kondor19780726 [428]3 years ago

3 0

Answer:

Slope= 2/5

y intercept = 0

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A random sample of 64 SAT scores of students applying for merit scholarships showed an average of 1400 with a standard deviation

Dennis_Churaev [7]

Answer: 95% confidence interval would be (1341.2,1458.8).

Step-by-step explanation:

Since we have given that

n = 64

Average = 1400

Standard deviation = 240

We need to find the 95% confidence interval for SAT scores.

So, z = 1.96

So, Interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1400\pm 1.96\times \dfrac{240}{\sqrt{64}}\\\\=1400\pm 1.96\times \dfrac{240}{8}\\\\=1400\pm 1.96\times 30\\\\=1400\pm 58.8\\\\=(1400-58.8,1400+58.8)\\\\=(1341.2,1458.8)$

Hence, 95% confidence interval would be (1341.2,1458.8).

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3 years ago

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Flura [38]

Answer:

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2 years ago

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Natali5045456 [20]

Answer:

NOT found in obtuse triangles

Step-by-step explanation:

you only talk about hypotenuse, adjacent, and opposite in right triangle

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2 years ago

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VladimirAG [237]

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2 years ago

How can i write a decimal whose value is greater then five tenths

IrinaK [193]

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Step-by-step explanation:

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1 year ago

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