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Aleonysh [2.5K]
3 years ago
8

If a base is negative, how will you know whether the answer is positive or negative before evaluating it?

Mathematics
2 answers:
jeka943 years ago
5 0
You can determine if the answer is positive or negative because the even numbers are positive and the odd numbers are negative
Gwar [14]3 years ago
3 0

Sample Response: When evaluating a power with a negative base, the solution is positive or negative depending on whether the exponent is odd or even. If odd, the value will be negative. If even, the value will be positive.


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The athletic club at school sold raffle tickets to raise money for equipment. The club sold a total of 1050 tickets,515 to teach
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Answer:

Probability of the teacher or other staff is 0.7143

Step-by-step explanation:

pr(teacher or other staff) = pr(teacher) + pr(other staff) - pr(teacher and other staff)

Total number of tickets = 1050

Number of tickets sold to teachers = 515

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pr(teacher) = \frac{515}{1050}

                 = 103 \frac{2}{10}

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pr(other staff) = \frac{235}{1050}

                    = 47 \frac{2}{10}

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Since the picking of the wining ticket is mutually exclusive, then;

pr(teacher and other staff) = 0

Thus,

pr(teacher or other staff) = 0.4905 + 0.2238 - 0

                                         = 0.7143

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3 years ago
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