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algol13
3 years ago
5

In a study to support drug discovery for patients with lung cancer, patients were divided into 3 groups based on the severity of

the disease. Smoking and alcohol consumption habits were recorded for all 3 groups. Is this an example of an observational study or experimental study
Mathematics
1 answer:
katrin [286]3 years ago
4 0

Answer:

It is an example of an observational study.

Step-by-step explanation:

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Y2-x3 when x=2,y=4 x1+x3-y2 when x=3 y=5 x4 divide x3 x=6 please help am bad at this
Katen [24]

Answer:

8 , 5 , 5.785

Step-by-step explanation:

y^2 - x^3

first just plug in the numbers and you get

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same pattern plug in the numbers

(3)^(1) + (3)^3 - (5)^2

multiply

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Addition

Subtraction so do 3+27 first and you get

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x^4 / x^3 plug it in

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multiply

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3 years ago
Step by step solution.
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Take 35 and divide by the ratio together = 3+4=7, 35/7= 5 x 3= 15
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Corey deposited $1,500 in a savings account that earns simple interest
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$1,517.25 would be the answer
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-4

Step-by-step explanation:

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Jean add 35 + 9. How can she solve using only equations to model her thinking?
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Answer:

( 35+9=44)

Step-by-step explanation:

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