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2 years ago

10

-8d-5d+7d=72 can you help me figure out d

1 answer:

Kryger [21]2 years ago

8 0

Answer:

d = -12

Step-by-step explanation:

Add -8 -5 +7

take that number : -6

72 divided by -6 = -12

d = -12

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3 years ago

The equation of the inner circle is x^2+y^2-8x-6y-11=0 and CB=2. Which statements are correct? Select all that apply.

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Step-by-step explanation:

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2 years ago

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2 years ago

According to a recent government report, the aging of the U.S. population is translating into many more visits to doctors' offic

olga_2 [115]

Answer:

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Step-by-step explanation:

Mean during a time period means that we use the Poisson distribution.

Poisson distribution:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given interval.

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A year has 12 months, which means that the monthly mean is $\mu = \frac{4}{12} = \frac{1}{3}$

What is the probability that an average person makes at least one MONTHLY visit to doctors' office and hospitals?

This is:

$P(X \geq 1) = 1 - P(X = 0)$

In which

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 0) = \frac{e^{-(\frac{1}{3})}*(\frac{1}{3})^{0}}{(0)!} = 0.7165$

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0.2835 = 28.35% probability that an average person makes at least one MONTHLY visit to doctors' office and hospitals

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3 years ago

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Lana71 [14]

Answer:

Step-by-step explanation:

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3 years ago