3 years ago

Which of the following choices will simplify (8 − 5)2 + + 4

Mathematics

1 answer:

babunello [35]3 years ago

7 0

Answer:10

Step-by-step explanation:

Using Bodmas

(8-5)=3

3*2=6

6++4=10

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The probability that Sandra gets a ride to work on any morning is 0.7. The probability that she gets a ride 3 times in a 5-day w

guajiro [1.7K]

Answer: The probability that she gets a ride 3 times in a 5-day work week is <u>0.31</u>.

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Step-by-step explanation:

By binomial distribution formula:

$P[X=r]=^nC_rp^rq^{n-r}$ , where n is the number of trials , r is the number of success, p is the probability of success and q is the probability of failure.

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Now, the probability that she gets a ride 3 times in a 5-day work week :

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The probability that she gets a ride at least 2 times in a 5-day workweek :

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