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Pepsi [2]
3 years ago
5

The difference between an observational study and an experiment is that

Mathematics
1 answer:
spin [16.1K]3 years ago
6 0

explanation:

In an observational study, we measure or survey members of a sample without trying to affect them. In a controlled experiment, we assign people or things to groups and apply some treatment to one of the groups, while the other group does not receive the treatment

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A tree was 14 3/8 inches tall when it was first planted. Two years later, the tree was 21 1/8 inches tall. how much did the tree
Oxana [17]

Answer:

In two years, the tree grew 27/4in.

Step-by-step explanation:

21 1/8 - 14 3/8 = 27/4in.

hope it helped :)

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3 years ago
8 with a exponent of 2 +7
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Answer:

71

Step-by-step explanation:

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Raul works at a movie theatre. The function f(x) represents the amount of money in dollars Raul earns per ticket, where x is the
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Step-by-step explanation:

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The function g(x) represents the number of tickets Raul sells per hour, where x is the number of hours he works. The function is represented by

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f(g(x))= 3[√(5x^3)]^2 + 16

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4 years ago
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nancy earns $12.50 an hour cleaning houses, but doesn’t work on saturday or sunday. if she works from 8:00 am to 2:00 pm, how mu
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In a day, Nancy will earn $27.50.  In a week, Nancy will earn $437.50.

Step-by-step explanation:

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3 years ago
Billy is trying to convince Cynthia that all whole numbers are also natural numbers. To support his argument, Billy points out t
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