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3 years ago

What is the equation of the line graphed below in slope-intercept form

Mathematics

2 answers:

Greeley [361]3 years ago

7 0

Answer is b because the slope is -1/2 and the y intercept is -2

JulijaS [17]3 years ago

5 0

Answer:D is correct

Step-by-step explanation:D is correct.Because it's a down line,and it's y-intercept is 2

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What does it mean to “solve for a variable”?

madam [21]

Answer:

it means to find the undefined number

we should solve for the variable to find the answer to the equation

we solve for the variable by using the elimination method

Step-by-step explanation:

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3 years ago

Someone please help <br> WILL GIVE BRAINLIEST

Flauer [41]

Answer:

y=3x+1

Step-by-step explanation:

I'm very bad at explaining things so im sorry if this doesn't make any sense

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2 years ago

Bradley owns 2 surfboards and 4 wet suits. If he takes one surfboard and one wet suit to the beach, how many different combinati

photoshop1234 [79]

Answer:

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Step-by-step explanation:

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2 years ago

James earned a total of $900 last week.This total was $10 less than five times the amount he earned last week. How much money di

Hoochie [10]

Hello!

Let's change it to an equation.

$5x - 10 = 900$

Switch the equation around

$900 = 5x - 10$

First add 10 from 900

$900 + 10 = 910$

$5x = 910$

Divide both sides by 5

$\frac{5x}{5} = \frac{910}{5}$

$\framebox{x = 182}$

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3 years ago

Suppose a simple random sample of size n is drawn from a large population with mean mu and standard deviation sigma. The samplin

Sidana [21]

Answer:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

6 0

3 years ago

Read 2 more answers