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Neporo4naja [7]
2 years ago
13

True of false Rise is the vertical change between any two points on a line

Mathematics
1 answer:
zaharov [31]2 years ago
8 0

Answer:

True

Step-by-step explanation:

brainliest

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A newspaper reports that the population mean annual salary of a full-time college professor in a certain region is exactly $127,
Leya [2.2K]

Answer:  

Option B) Fail to reject the null hypothesis that the true population mean annual salary of full-time college professors in the region is equal to $127,000.                

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ =  $127,000

Sample mean, \bar{x} = $126,092

Sample size, n = 160

Alpha, α = 0.10

Sample standard deviation, σ = $8,509

First, we design the null and the alternate hypothesis

H_{0}: \mu = 127000\text{ dollars}\\H_A: \mu \neq 127,000\text{ dollars}

We use Two-tailed t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

t_{stat} = -1.35

Now, t_{critical} \text{ at 0.10 level of significance, 159 degree of freedom } = \pm 1.654

Since,                  

The calculated t-statistic lies in the acceptance region, we fail to reject and accept the null hypothesis.

Option B) Fail to reject the null hypothesis that the true population mean annual salary of full-time college professors in the region is equal to $127,000.

8 0
3 years ago
URGENT!!!!!!! Need help now
bulgar [2K]

Answer: 9 m + 7 n - 6 mn + 4 m

Step-by-step explanation:

m + 3 n + 6 mn - 4 .... for this expression , it is already in its simplified form as we can not add any term together because they are not have the same variables.

9 m + 7 n - 6 mn + 4 ..... this also is already simplified

7 m - 9 n - 6 mn + 4 ..... the same thing with this

9 m + 7 n - 6 mn + 4 m .... this particular can still be further simplified because we have 9m and 4m having the same variable and we can therefore add them together , the simplified form of the expression will be

13m + 7n - 6mn

8 0
3 years ago
Rosalinda is drawing a picture for her mom. She has a box of
trasher [3.6K]

Answer:

4 crayons

Step-by-step explanation:

The box has 8 crayons, 8 times 1/2 is 4. The other way is dividing. 8/2 is also 4.

She will use 4 crayons.

8 0
3 years ago
What is the measure of angle 1?
svp [43]

Answer:

88°

Step-by-step explanation:

Since we have 2 parallel lines, first we use the Corresponding Angles Postulate.

Since angle 2 is corresponding to the 92° angle,

angle 2 = 92°

Now we know that angle 1 and angle 2 are supplementary.

This means:

angle 1 + angle 2 = 180°

<em>(substitute known values)</em>

angle 1 + 92 = 180

<em>(subtract 92 on both sides)</em>

<h2>angle 1 = 88°</h2><h2></h2>

Hope this helps, please say thanks if it does!

3 0
2 years ago
In your own words, explain the steps you would need to take to find a slope from data in a table.
OverLord2011 [107]

Answer:

Pick two points on the line and determine their coordinates. Determine the difference in y-coordinates of these two points (rise). Determine the difference in x-coordinates for these two points (run). Divide the difference in y-coordinates by the difference in x-coordinates (rise/run or slope).

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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