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AysviL [449]
3 years ago
14

Klay's lunch cost $6. This is $2 less than Ella's lunch cost. How much did

Mathematics
2 answers:
Andrew [12]3 years ago
7 0

Answer:

$6 + $2 = x

x = $8

Step-by-step explanation:

RUDIKE [14]3 years ago
3 0

Answer:

 6+2=8 6+2=x       x=8

Step-by-step explanation:

6+2=8       6+2=x

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For each of the following studies, say whether you would use a t test for dependent means or a t test for independent means.
Shtirlitz [24]

Answer:

1. T test for independent means

2. T test for dependent means

3. T test for dependent means

Step-by-step explanation:

In number 1, the two groups are unrelated. The first group has 25 subjects and they're all unemployed. The second group has 24 subjects and their employment status is not stated and might not be the same all through. Also, the first group is receiving a new type of job skills program while the second group is taking the standard job skills program.

- The groups in the experiment are unrelated

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- The purpose of the research is unreasonable - the researcher seeks to measure how well all 49 subjects perform on 'a' job skills test! No comparison between the scores or mean scores of the two groups.

In number 2, the researcher uses the same subjects and also measures the same variable but twice. This is a good example of a study where the t test for dependent means can be taken. Same applies in case 3.

5 0
3 years ago
Select all of the expressions that have a value between 0 and 1
MrRissso [65]
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8 0
2 years ago
In a right –angled triangle, the length of hypotenuse and shorter sides are 13 cm and 5 cm respectively. Work out the other side
stellarik [79]

Answer: The other side is 12 cm.

Step-by-step explanation:

  • a^{2} + b^{2} = c^{2}
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7 0
3 years ago
A convenience store sells a coffee mug that comes
madreJ [45]

Answer:

The cost of the mug is of $6.50.

Step-by-step explanation:

The cost of the mug and r refills is given by the following equation:

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Cost of the mug:

The cost of the mug is found when no refills are bought, that is, C when r = 0, which is C(0)

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The cost of the mug is of $6.50.

7 0
3 years ago
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