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Leona [35]
3 years ago
6

Help pls!

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
6 0

Answer:

A

Step-by-step explanation:

Tresset [83]3 years ago
5 0

Answer:

A

Step-by-step explanation:

He first need to know where its   heading and on what route then he should detirmine if he is going to another stop lastly he needs to know how long it will take then decide the best bus then he needs to hop on the bus and think on what he"ll do on the next trip

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Greg run 5 miles in 38 minutes. At the same rate, how many miles would he run in 57 minutes?
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Answer:

ince you are just starting, i would say anywhere from 40-45 minutes, you should be averaging about 7-8 minutes per mile.

Step-by-step explanation:

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Triangle abc is an isosceles triangle in which ab=ac what is the perimeter of abc
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Please help asap 25 pts
Usimov [2.4K]

(22,12) m=4

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2 years ago
For an intramural sports program at a particular college, the time to run one mile is recorded for 200 male students in the prog
Greeley [361]

Answer:

Devon has the lower z-score, so he ran the mile faster relative to his gender.

Step-by-step explanation:

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Who ran the mile faster relative to their gender?

The lower the percentile of time ran, the faster. So whoever has the lower z-score ran the mile faster.

Devon

His best time to run the mile is 6.6 minutes.

These times are approximately normal with mean 8 minutes and standard deviation 1 minute.

We have to find Z when X = 6.6, \mu = 8, \sigma = 1. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{6.6 - 8}{1}

Z = -1.4

Kendall

Her best time to run the mile is 5.7 minutes.

These times are approximately normal with mean 7.5 minutes and standard deviation 2 minutes.

We have to find Z when X = 5.7, \mu = 7.5, \sigma = 2. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{5.7 - 7.5}{2}

Z = -0.9

Devon has the lower z-score, so he ran the mile faster relative to his gender.

3 0
3 years ago
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