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allochka39001 [22]
3 years ago
14

At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 20 m

inutes and a standard deviation of 5 minutes. Using the empirical rule, what percentage of customers have to wait between 5 minutes and 35 minutes?
Mathematics
1 answer:
Georgia [21]3 years ago
6 0

Answer: About 99.7% of the population wait between 5 minutes and 35 minutes.

Step-by-step explanation:

According to the Empirical rule,

If a population is normally distributed, then

About 99.7% of the population lies within 3 standard deviations from the mean.

Here, Population is normally distributed with Mean = 20 minutes , standard deviation = 5 minutes

By empirical rule,

About 99.7% of the population wait between (20-3(5)) minutes and (20+3(5)) minutes.

About 99.7% of the population wait between 5 minutes and 35 minutes.

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Step-by-step explanation:

if the tank is filled with a cap on field to capacity how many half gallons of bottles are filled it will be about well first you have to think how much is half a gallon and it's a half of a gallon is 2 quarts how big is the tank that's what you want to know if you want to fill it up cuz I haven't gotten this 2 quarts tell me how big is the tank

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Consider the functions f and g defined by \[f(x) = \sqrt{\dfrac{x+1}{x-1}}\qquad\qquad\text{and}\qquad\qquad g(x) = \dfrac{\sqrt
tino4ka555 [31]

Answer:

The given functions are not same because the domain of both functions are different.

Step-by-step explanation:

The given functions are

f(x)= \sqrt{\dfrac{x+1}{x-1}}

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First find the domain of both functions. Radicand can not be negative.

Domain of f(x):

\dfrac{x+1}{x-1}>0

This is possible if both numerator or denominator are either positive or negative.

Case 1: Both numerator or denominator are positive.

x+1\geq 0\Rightarrow x\geq -1

x-1\geq 0\Rightarrow x\geq 1

So, the function is defined for x≥1.

Case 2: Both numerator or denominator are negative.

x+1\leq 0\Rightarrow x\leq -1

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From case 1 and 2 the domain of the function f(x) is (-∞,-1]∪[1,∞).

Domain of g(x):

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4 0
4 years ago
Jordan lives 6 kilometers due south of his parents' house and 4 kilometers west of his grandparents' house. On his birthday, Jor
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Answer:

Step-by-step explanation:

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