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2 years ago

For how many minutes did Lynn run at a greater speed than Kael? 12 17 23 28.

Mathematics

1 answer:

Archy [21]2 years ago

4 0

Answer:

28 minutes.

Step-by-step explanation:

We can see from our graph that 12 minutes after starting the race Lynn left Kael behind and he ran at a greater speed till the race ended after 40 minutes.

To find total number of minutes Lynn ran faster than Kael we will subtract 12 from 40.

Therefore, Lynn ran at a greater speed than Kael for 28 minutes.

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Answer:

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2 years ago

The ages of trees in a forest are normally distributed with a mean of 25 years and a standard deviation of 4. Approximately what

harkovskaia [24]

Answer:

78.88%

Step-by-step explanation:

We have been given that

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The z-score formula is given by

$z-\text{score}=\frac{x-\mu}{\sigma}$

For $x_1=20$

$z_1=\frac{20-25}{4}\\\\z_1=-1.25$

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Now, we find the corresponding probability from the standard z score table.

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0.8944 - 0.1056

= 0.7888

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3 years ago

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Answer:

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