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katrin2010 [14]
2 years ago
7

The times for running a 5K for a local charity event are Normally distributed, with a mean time of 28 minutes and

Mathematics
2 answers:
aev [14]2 years ago
8 0

Answer:

Answer: D- 37.45

Step-by-step explanation:

I got the answer right, but if you want the math: you find the z-score of 1.75 on the chart, multiply that by the standard deviation to get 9.45, and then add the mean of 28 to get 37.45 minutes

liq [111]2 years ago
7 0

Answer:19.12

I’m not sure if this is the answer but I need the points so here.

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Step-by-step explanation:

<u>We have:</u>

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The deep of the front end of the submarine at the end of a 1-minute drive is given by the following ratio:

cos (\theta) = \frac{x}{d}  

<u>Where:</u>

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The distance, d, is:

d = v*t = 10 \frac{m}{s}* 1 min * \frac{60 s}{1 min} = 600 m

Now, the deep is:

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I hope it helps you!

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