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dsp73
4 years ago
12

Subtract −7n+2 ​​from 2n−1 A:9n−3 B:−5n+1 C:9n + 1 D:−9n+3

Mathematics
2 answers:
cestrela7 [59]4 years ago
8 0
-7n+2 -(2n-1)= -7n+2-2n++1
-9n+3
d is correct
Ivahew [28]4 years ago
3 0
The answer is 9n-3 i took the test that what is was so it would be A 9n-3

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valentina_108 [34]

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5 0
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Read 2 more answers
A randomized study compared the effectiveness of two mosquito repellents. The treatment group using Spray A reported a mean of 3
BlackZzzverrR [31]

Answer:

The difference of the means is not significant because the re-randomizations show that it is within the range of what could happen by chance.​

Step-by-step explanation:

Given that:

The treatment group using Spray A reported a mean of 3.5 mosquito bites.

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After the data are  re-randomized; the differences of the means are shown in the dot plot. The dot plot is attached in the file below;

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The difference of the means is not significant because the re-randomizations show that it is within the range of what could happen by chance.​

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Sveta_85 [38]

Answer:

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6 0
3 years ago
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kogti [31]

Answer:

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Step-by-step explanation:

(-4+1)+(10-51)

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-44

5 0
4 years ago
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