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zaharov [31]
3 years ago
7

In 1980 the population of detroit michigan was approximately 1,200,000.If the population decreased at an annual rate of 14.6% ov

er the next vacate , what was the population of detriot in 1990, 10 years later
Mathematics
1 answer:
stealth61 [152]3 years ago
8 0

Answer:

  247,605

Step-by-step explanation:

Each year, the population is multiplied by a factor of (1 -14.6%) = 0.854. Multiplying by that factor for 10 years gives the value ...

  1,200,000×0.854^10 ≈ 247,605

The population in 1990 is predicted to be 247,605.

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Answer:

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Step-by-step explanation:

As the heights of adults is normally distributed with mean=69 and standard deviation=2.5 so, the percent of men that are between 64 and 66.5 inches tall can be calculated as

P(64<X<66.5)=P[ (64-69)/2.5<(X-μ)/σ<(66.5-69)/2.5]

P(64<X<66.5)=P(-2<Z<-1)

P(64<X<66.5)=P(-2<Z<0)-P(-1<Z<0)

P(64<X<66.5)=0.4772-0.3413=0.1359

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IgorLugansk [536]

Answer:

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Step-by-step explanation:

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