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gulaghasi [49]
2 years ago
15

When diving, a bald eagle can reach a speed of 200 miles per hour. What is this speed in feet per second? Round to the nearest h

undredth if necessary
Mathematics
1 answer:
LenaWriter [7]2 years ago
3 0

Answer:

A mile is equal to 5280 feet

You start off with

200 miles per hour

If you multiply 200 by 5280 you can find the speed in feet per hour

1,056,000 feet per hour

There are 60 minutes in an hour

If you divide 1,056,000 by 60 you can find the speed in feet per minute

So 17,600 feet per minute

Then if you divide that by 60 you can find the speed in feet per seconds

It is 293 1/3 or 293.333 feet per second.

Step-by-step explanation:

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Answer:

28

Step-by-step explanation:

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The mean life of a certain brand of auto batteries is 44 months with a standard deviation of 3 months. Assume that the lives of
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Answer:

99.7%

Step-by-step explanation:

Using the z score formula

z-score is z = (x-μ)/σ

where:

x = raw score

μ = population mean

σ = population standard deviation.

a) for x = raw score = 35

μ = population mean = 44

σ = population standard deviation =3

z = (35 - 44)/3

z = -9/3

z = -3

b) for x = raw score = 53

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σ = population standard deviation =3

z = (53 - 44)/3

z = 9/3

z = 3

We would use the standard normal distribution table to find their probabilities

P(Z<=-3)=0.0013499

P(Z<=+3)=0.99865

So P(-3<=Z<=3)=0.99865 - 0.0013499 = 0.9973

Converting to percentage = 0.9973 × 100 = 99.73%

Therefore, the percentage of auto batteries of this brand that have a life of 35 to 53 months to one decimal place is 99.7%

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