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Rufina [12.5K]
3 years ago
15

Researchers investigated the possible beneficial effect on heart health of drinking black tea and whether adding milk to the tea

reduces any possible benefit. Twenty-four volunteers were randomly assigned to one of three groups. Every day for a month, participants in group 1 drank two cups of hot black tea without milk, participants in group 2 drank two cups of hot black tea with milk, and participants in group 3 drank two cups of hot water but no tea. At the end of the month, the researchers measured the change in each of the participants’ heart health.
Did the researchers conduct 1 drank two cups of hot black tea participants in group 3 drank two d the change in each of the participants' heart bealth. t an experiment or an observational study?
Mathematics
1 answer:
Gemiola [76]3 years ago
6 0

Answer:

Dayum u smart smart

Step-by-step explanation:

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Step-by-step explanation:

7 0
3 years ago
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ehidna [41]

Answer:

Therefore, on the graph;

The height = 7.5 units

And base = 5.0 units

Attached is an image for further information;

Step-by-step explanation:

Given that;

1 unit on the grid represent 2m of the garden;

Ratio = 1/2 unit/m

For the height;

height h = 15m

On the graph;

h = 15m × 1/2 unit/m

h = 7.5 units

For the base;

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b = 10m × 1/2 unit/m

b = 5 units

Therefore, on the graph;

The height = 7.5 units

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6 0
3 years ago
What is the value of y when the value of x is 1 Car mileage for a hybrid car
Svetllana [295]

Answer: 60

Step-by-step explanation:

Just got the wrong answer to see what it was

8 0
4 years ago
The expression below represents Julias annual salary after tyears interpret the meaning of the expression 25,000(1.04) interpret
LuckyWell [14K]
Given that the expression for Julia's salary after t years is given by:
25000(1.04)^t
This can be interpreted as follows:
Initial salary is $25000
growth rate is 0.04=4%
thus the correct answer is:
<span>D salary is 25,000 growth rate is 4% per yr</span>
8 0
4 years ago
If the scale factor of my dilation is 4 , what is happening to my shape ?
anygoal [31]

Answer:

The shape is the same

Step-by-step explanation:

we know that

A dilation is a non rigid transformation, that change the size but not the shape of the original  figure

so

If the dilation scale factor is 4, the figure size increases by 4, but the shape remains the same

4 0
3 years ago
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