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2 years ago

14

Erica earn 30,000 bonus points on her computer assignment this is 10 times as many bonus points as she earned last week how many

bonus points did Erica earn last week

1 answer:

yan [13]2 years ago

3 0

She earned 3,000 last week

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Students in a high school mathematics class decided that their term project would be a study of

weeeeeb [17]

The parameter of interest in this scenario is the proportion of all 1,000 students within the school who have "strict" parents or guardians.

<h3>How to calculate a test statistic?</h3>

In Mathematics, the test statistics of a given sample is calculated by using this formula:

$Z=\frac{x\;-\;u}{\frac{\sigma}{\sqrt{n} } }$

<u>Where:</u>

x is the sample mean.

u is the mean.

is the standard deviation.

n is the sample size.

In conclusion, a possible test statistic which can be used to estimate this parameter is the proportion of all students who have "strict" parents or guardians, based on the collected sample.

Read more on test statistic here: brainly.com/question/4621112

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1 year ago

Graph the line whose y-intercept is -7 and whose x-intercept is 1

vesna_86 [32]

Answer:

$y=7x -7$

Step-by-step explanation:

We are given two points, the y - intercept and the x - intercept.

The y - intercept being: ( 0, -7 )

The x - intercept being: ( 1, 0 )

The equation of a line in slope - intercept form is:

y = mx + b, where m is the slope and b is the y - intercept.

We already have the y - intercept. So far we have:

y = mx - 7

What we're missing is the slope.

To find the slope, we can use this formula:

$\frac{y_{2}-y_{1} }{x_{2}-x_{1}}$ , where $x_{2}$ and $x_{1}$ are the x - coordinates of both points and $y_{2}$ and $x_{1}$ are the y - coordinates of both points.

$m=\frac{0-(-7)}{1-0} \\\\m=\frac{7}{1}\\m=7$

We now have the missing piece, the slope, so the equation now is:

$y=7x -7$

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2 years ago

four friends are planning to meet at the local park. Mary and Teresa jog to the park. Kevin rides his bike to the park, and Manu

taurus [48]

Not sure this is a hard one

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2 years ago

Molly walked 3.45 miles on a hike. her sister walked 1.23 miles. her brother walked 0.85 miles. how much farther did molly walk

Oxana [17]

The answer is B......

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2 years ago

Read 2 more answers

I will give u brainliest plz I need help ),:

Whitepunk [10]

Answer:

(2,0)

Step-by-step explanation:

y=24x-48

8 0

2 years ago

Read 2 more answers