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3 years ago

Please help it is math

Mathematics

1 answer:

olasank [31]3 years ago

4 0

Answer:

A linear function has the form y=mx+b

A line has a proportional relationship if y/x is always the same ratio for any value.

The slope m=(y2-y1)/(x2-x1) for some two points on a line is always constant, else it wouldn't create a line.

A line won't be proportional if you adapt b because the ratio of y/x won't match the slope anymore.

In the end this means all lines with proportional relationships must intersect (0,0) or in other words f(0)=0.

This happens if they have the shape y=mx.

Step-by-step explanation:

hope this helps pls mark me brainliest

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Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is μd =

swat32

Answer:

Test statistic, $t_{s} = -0.603$ (to 3 dp)

Step-by-step explanation:

Deviation, d = x -y

Sample mean for the deviation

$\bar{d} = \frac{\sum x-y}{n}$

$\bar{d} = \frac{(28-6) + (31-27)+(20-26)+(25-25)+(28-29)+(27-32)+(33-33)+(35-34)}{8} \\\bar{d} = -0.625$

Standard deviation: $SD = \sqrt{\frac{\sum d^{2} - n \bar{d}^2}{n-1} }$

$\sum d^{2} = (28-26)^2 + (31-27)^2 +(20-26)^2 +(25-25)^2 +(28-29)^2 +(27-32)^2 +(33-33)^2 +(35-34)^2\\\sum d^{2} = 63$

$SD = \sqrt{\frac{63 - 8 * (-0.625)^2}{8-1} }$

SD =2.93

Under the null hypothesis, the formula for the test statistics will be given by:

$t_{s} = \frac{ \bar{d}}{s_{d}/\sqrt{n} } \\t_{s} = \frac{- 0.625}{2.93/\sqrt{8} }$

$t_{s} = -0.6033$

6 0

3 years ago

Piscou possède 2021 pièces d'or. Il les répartit en piles contenant des nombres de pièces consécutifs.

anzhelika [568]

Question in English:

Tom has 2,021 gold coins. He divides them into piles containing consecutive numbers of pieces. if it has more than two piles, how much is in the highest pile?

Plzzzzz give me Brainliest!!!!!

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3 years ago

suppose you have $11000 to invest. which of the two rates would yield the larger amount in 5 years: 6% compounded monthly or 5.8

umka21 [38]

Answer:

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Step-by-step explanation:

The monthly rate being compounded when the interest is 6% per year is ...

6%/12 = 0.5%

so the multiplier each month is

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The monthly multiplier when 5.86% is compounded continuously is ...

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3 years ago

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Westkost [7]

Answer:

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Step-by-step explanation:

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Substitute:

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3 years ago

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