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drek231 [11]
3 years ago
8

HELP NEEDED! Evaluate: 8 + -12 - -12/2

Mathematics
2 answers:
hoa [83]3 years ago
5 0

Answer:

2

Step-by-step explanation:

svp [43]3 years ago
3 0

Answer:

2

Step-by-step explanation:

because if 8+-12= about-4 so if you have a negative number plus a positive it equals a negative number then you have -4 minus -12 equals a positive is 8 because if its negative and negative it equals a positive number then you have 8/2 and it equals 4 because that slash is a divided sign all together it is 8+-12-(-12)/2=2

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Answer:

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Step-by-step explanation:

information given

\bar X=10.6 represent the sample mean  

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Replacing the info given we got:

We can replace in formula (1) the info given like this:  

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

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