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zhuklara [117]
2 years ago
6

Mary lost 30 pounds. Before her diet she weighed 180 pounds. What is the percent of change.

Mathematics
1 answer:
MA_775_DIABLO [31]2 years ago
5 0

Answer:

30 is 16.67% of 180

Step-by-step explanation:

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Integration by substitution is an integration method meant to "undo" the chain rule for differentiation. This method is useful for some integrands containing compositions of functions.

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The answer is Choice C.
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2 years ago
In a large population, 61 % of the people have been vaccinated. if 4 people are randomly selected, what is the probability that
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In a large population, 61% of the people are vaccinated, meaning there are 39% who are not. The problem asks for the probability that out of the 4 randomly selected people, at least one of them has been vaccinated. Therefore, we need to add all the possibilities that there could be one, two, three or four randomly selected persons who were vaccinated.

For only one person, we use P(1), same reasoning should hold for other subscripts.

P(1) = (61/100)(39/100)(39/100)(39/100) = 0.03618459
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8 0
2 years ago
The number of defective components produced by a certain process in one day has a Poisson distribution with a mean of 20. Each d
Kruka [31]

Answer:

The probability that exactly 15 defective components are produced in a particular day is 0.0516

Step-by-step explanation:

Probability function : P(X=x)=e^{-\lambda} \frac{\lambda^x}{x!}

We are given that The number of defective components produced by a certain process in one day has a Poisson distribution with a mean of 20.

So,\lambda = 20

we are supposed to find the probability that exactly 15 defective components are produced in a particular day

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P(X=15)=e^{-20} \frac{20^{15}}{15!}

P(X=15)=e^{-20} \frac{20^{15}}{15!}

P(X=15)=0.0516

Hence the probability that exactly 15 defective components are produced in a particular day is 0.0516

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2 years ago
It takes 40 cents worth of meat to make 2 sandwiches. What is the cost of the meat for 20 sandwiches?
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Answer:

400 cents or four dollars

Step-by-step explanation:

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