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2 years ago

Could someone explain how to solve this

Mathematics

2 answers:

ozzi2 years ago

7 0

Answer:

y=\frac{4x}{5}-5

Step-by-step explanation:

linear equation

y=mx+b

We can see that when x=0 y= -5

THis means that b= -5 so we have

y=mx-5

We then know that when x=5 y= -1 so we have

-1=5m-5

Solve this and get m= 4/5

So we have

$y=\frac{4x}{5}-5$

Pani-rosa [81]2 years ago

4 0

Answer:

f(x) = $\frac{4}{5}$ x - 5

Step-by-step explanation:

f(5) = -1 and f(0) = -5 mean that f has points at (5, -1) and (0, -5).

You can find the slope using the two points:

slope = $\frac{-1 - (-5)}{5 - 0}$ = $\frac{4}{5}$

Then use point-slope form to make equation:

y - (-5) = $\frac{4}{5}$ (x - 0)

y + 5 = $\frac{4}{5}$ x

y = $\frac{4}{5}$ x - 5

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3 years ago

Read 2 more answers

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stira [4]

Answer:

$H_{0}: \mu= 185$ and $H_{a}: \mu > 185$

Step-by-step explanation:

The null hypothesis $H_{0}$ states that a population parameter (such as the mean, the standard deviation, and so on) is equal to a hypothesized value. We can write the null hypothesis in the form $H_{0}: parameter = value$

In this context, the investigator's null hypothesis should be that the average total weight is no different than the reported value by the FAA. We can write it in this form $H_{0}: \mu= 185$ .

The alternative hypothesis $H_{a}$ states that a population parameter is smaller, greater, or different than the hypothesized value in the null hypothesis. We can write the alternative hypothesis in one of three forms

$H_{a}: parameter > value\\H_{a}: parameter < value\\H_{a}: parameter \neq value$

The investigator wants to know if the average weight of passengers flying on small planes exceeds the FAA guideline of the average total weight of 185 pounds. He should use $H_{a}: \mu > 185$ as his alternative hypothesis.

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3 years ago

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lilavasa [31]

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago