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Alexxandr [17]
3 years ago
15

Are the expressions -0.5(3x + 5) and -1.5x + 2.5 equivalent? Explain why or why not

Mathematics
2 answers:
Gelneren [198K]3 years ago
7 0

Answer:

Step-by-step explanation:

-0.5(3x + 5)   and   -1.5x + 2.5

-0.5(3x + 5)...distribute the -0.5 thru the parenthesis

-1.5x - 2.5

no, these are not equivalent.... one is -1.5x + 2.5 and the other is -1.5x - 2.5....not the same

Anna71 [15]3 years ago
3 0

Answer:

Both expressions are not equal

Step-by-step explanation:

First expression is

-0.5(3x + 5)

By multiplying

-1.5x - 2.5

2nd expression is

-1.5x + 2.5

Only Sign is different with 2.5 in both cases

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Answer:

A.

mean = 724.2

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B.

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C.

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Step-by-step explanation:

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A.

1. Mean = 18105/25

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B.

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Please check attachment for the full calculation of the standard deviation

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