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Dmitrij [34]
3 years ago
13

An energy drink manufacturer wants to find out the effect of different amounts of their product on the maximum anaerobic power l

evel for rowers. Would an experimental or observational study design be more appropriate?
Mathematics
1 answer:
Licemer1 [7]3 years ago
5 0

Answer:

An experimental study

Step-by-step explanation:

An experimental study should be used. This will enable the energy  drink manufacturer to have an experimental group and control group. Using experimental study, the effect of independent variables on the dependent variables can be determined with the amount of the drink consumed as the controlled factor.

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Four brothers and their sister have the average age 7. Four brothers have the average age 6. How old is the sister?
AnnyKZ [126]

Answer:

11 years old

Step-by-step explanation:

If four brothers have the average age 6, then the sum of their ages is

4\cdot 6=24

years.

Let x years be the age of sister. If four brothers and their sister have the average age 7, then

\dfrac{24+x}{5}=7.

Multiply this equation by 5:

24+x=35\Rightarrow x=35-24=11.

The sister is 11 years old.

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Answer:

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Step-by-step explanation:

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OlgaM077 [116]

there are 13 people in line

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jonny [76]

Answer:

128

Step-by-step explanation:

32/0.25=128

3 0
3 years ago
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