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3 years ago

What is the rate of change of the cost with respect to the number of miles for the Yellow Cab Company?

Mathematics

1 answer:

Leona [35]3 years ago

7 0

Answer:

$2/mile

Step-by-step explanation:

Look at the graph. We see that two points on this line are (0, 2) and (9, 20).

The "run" is (9 - 0), or 9, and the "rise" is (20 - 2), or 18.

The slope of this yellow line is thus m = rise / run = (18 dollars) / (9 miles) = $2/mile

This slope of the yellow line is the incremental taxi fare per mile traveled and is speed of the car and is m = 2 mph.

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stiks02 [169]

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Neporo4naja [7]

Answer:

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3 years ago

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coldgirl [10]

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3 years ago

Suppose that the weights of 5400 registered female Labrador retrievers in the United States are distributed normally with a mean

Maurinko [17]

Answer:

$N= 4543$ Labrador retrievers

Step-by-step explanation:

We know that the mean $\mu$ is:

$\mu = 62.5$

and the standard deviation $\sigma$ is:

$\sigma=2.5$

The probability that a randomly selected Labrador retriever weighs less than 65 pounds is:

$P(X$

We calculate the Z-score for X =65

$Z = \frac{X-\mu}{\sigma}\\\\Z =\frac{65-62.5}{65}=1$

$P(X$

Looking in the table for the standard normal distribution we have to:

$P(Z$ .

Finally the amount N of Labrador retrievers that weigh less than 65 pounds is:

$N = P(X$

$N = 0.8413*5400$

$N= 4543$ Labrador retrievers

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3 years ago