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Goryan [66]
2 years ago
10

Graph the function. f(x) = x+3 ifx<2 12x-3 ifx22

Mathematics
1 answer:
xxMikexx [17]2 years ago
4 0

Answer:

so soryyyyyyyyy points its for the points so sorryyyyy

Step-by-step explanation:

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sergejj [24]

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Juan divided 1/2 jar of fish food into 7 equal parts. He feeds his fish one part each day.
amid [387]
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Researchers investigated the possible beneficial effect on heart health of drinking black tea and whether adding milk to the tea
Elanso [62]

Answer:

(a)  It is an experiment.

(b) Group III has been tested to compare the effect of tea

Step-by-step explanation:

24 volunteers are randomly selected to one of the three groups.

Group I drinks two cups of hot black tea without milk

Group II drinks two cups of hot black tea with milk

Group III drinks two cups of hot water but no tea.

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The average change of health status of three Groups can be measured and let it be X1', X2' and X3'. We can set up the hypothesis of no difference of heart health i.e H0 : µ1 = µ2 = µ3 against the alternative hypothesis that they are not equal. As the sample size is less than 30, we can use t-statistic.

Under the above logic, (a) it is an experiment.

(b) Group III has been tested to compare the effect of tea or to have comparison between GroupI and Group III.

4 0
3 years ago
Stacy earned $129.55 last week. Dave earned $127.95 last week. Carlos earned $127.05
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Answer:

The total earnings is $384.55

The least earnings is

$127.05

$127.95

$129.55

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