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3 years ago

Is this statement true or false?

Mathematics

2 answers:

daser333 [38]3 years ago

8 0

False your answer is false

Leya [2.2K]3 years ago

3 0

Answer:

false

Step-by-step explanation:

used cars can often have higher interest rates

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Find the value of X. The find each angle measure. Please show work.

user100 [1]

60 + 3x + x + 20 = 180

4x = 180 - 20 - 60 = 100

x = 25

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x + 20 = 45

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nevsk [136]

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Step-by-step explanation:

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2 years ago

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Natalija [7]

B.

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3 years ago

The manager of a fast-food restaurant determines that the average time that her customers wait for service is 3.5 minutes.The ma

Lana71 [14]

Answer:

The advertisement should use 16 minutes.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

$f(x) = \mu e^{-\mu x}$

In which $\mu = \frac{1}{m}$ is the decay parameter.

The probability that x is lower or equal to a is given by:

$P(X \leq x) = \int\limits^a_0 {f(x)} \, dx$

Which has the following solution:

$P(X \leq x) = 1 - e^{-\mu x}$

The probability of finding a value higher than x is:

$P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}$

The manager of a fast-food restaurant determines that the average time that her customers wait for service is 3.5 minutes.

This means that $m = 3.5, \mu = \frac{1}{3.5} = 0.2857$

What number of minutes should the advertisement use?

The values of x for which:

$P(X > x) = 0.01$

$e^{-\mu x} = 0.01$

$e^{-0.2857x} = 0.01$

$\ln{e^{-0.2857x}} = \ln{0.01}$

$-0.2857x = \ln{0.01}$

$x = -\frac{\ln{0.01}}{0.2857}$

$x = 16.12$

Rounding to the nearest number, the advertisement should use 16 minutes.

5 0

2 years ago

Which of the following is NOT true about unit rates?

lisov135 [29]

A, it’s the move for that wuestion

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2 years ago