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spayn [35]
2 years ago
6

Katie earns $12 an hour. Which graph represents the relationship between the number of hours Katie works and her earnings,

Mathematics
2 answers:
klasskru [66]2 years ago
7 0

Answer:

first top left graph? 12×4 is 48 so that puts it about right

lutik1710 [3]2 years ago
4 0

Answer:

Top left graph

Step-by-step explanation:

Bottom left graph says she earns $10/hour, other right side graphs are just not even close, so the top left is the solution because it is over the $10/hour mark and has accurate numbers.

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What is the volume, in cubic inches, of a rectangular prism with a height of 19 inches, a width of 11 inches, and a length of 4
jolli1 [7]

Answer:

836

Step-by-step explanation:

4 times 19 times 11

7 0
2 years ago
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TiliK225 [7]
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3 years ago
A hypothesis test is conducted at the .05 level of significance to test whether or not the population correlation is zero. If th
finlep [7]

Answer:

Th computed value of the test statistic is 3.597

Step-by-step explanation:

The null and the alternative hypothesis is as follows:

Null Hypothesis:

\mathbf{H_o:} the population correlation coefficient is equal to zero

\mathbf{H_a:} the population correlation coefficient is not equal to zero

The test statistics for Pearson correlation coefficient is thus computed as :

t =\dfrac{r \sqrt{(n-2)}} { \sqrt{(1-(r)^2)} }

where;

r = correlation coefficient = 0.60

n = sample size = 25

So;

t =\dfrac{0.60 \sqrt{(25-2)}} { \sqrt{(1-(0.60)^2)} }

t =\dfrac{0.60 \sqrt{(23)}} { \sqrt{(1-0.36} }

t =\dfrac{0.60 *4.796} {0.8}

t = 3.597

Comparing to a critical value of t (23 degrees of freedom two-tailed value) = 2.069

Decision Rule:

Since computed value of t is greater than the critical value of t; We reject the null hypothesis and accept the alternative hypothesis.

Conclusion:

We conclude that the population correlation coefficient significantly differs from 0 at 5% (0.05) level of significance.

6 0
3 years ago
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makvit [3.9K]
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6 0
2 years ago
Kimiko works at the drive-thru window in a fast-food restaurant. At the end of a 2-hour shift, the display at her window shows t
Anastaziya [24]

Answer:

90 customers

Step-by-step explanation:

Total shift time  = 2 hours

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Average Time taken to serve 1 customer = 1 minute 20 seconds

lets convert  1 minute 20 seconds in fraction

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Thus,

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total time taken to serve x customer =x*Average Time taken to serve 1 customer = 4x/3 minutes

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Thus,

Kimiko served 90 customers and this is the number of customer which came through the drive thru during those 2 hours.

3 0
3 years ago
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