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2 years ago

Solve the system of linear equations using elimination. -5x + 3y = -19 -x – 3y = -11

Mathematics

2 answers:

coldgirl [10]2 years ago

8 0

3z=5.-x3y-z=-3.2x=6 there you go

Ierofanga [76]2 years ago

8 0

What the first person said

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2 years ago

A local animal rescue organization receives an average of 0.55 rescue calls per hour. Use the Poisson distribution to find the p

andreyandreev [35.5K]

Answer:

B) 0.894

Step-by-step explanation:

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.

A local animal rescue organization receives an average of 0.55 rescue calls per hour.

This means that $\mu = 0.55$

Probability that during a randomly selected hour, the organization will receive fewer than two calls.

$P(X < 2) = P(X = 0) + P(X = 1)$

In which

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

$P(X = 0) = \frac{e^{-0.55}*(0.55)^{0}}{(0)!} = 0.577$

$P(X = 1) = \frac{e^{-0.55}*(0.55)^{1}}{(1)!} = 0.317$

$P(X < 2) = P(X = 0) + P(X = 1) = 0.577 + 0.317 = 0.894$

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3 years ago

X+y+z=10<br> 6x+y+2z=37<br> y-z=10

garik1379 [7]

Ignore the scribbles
Search up Elimination and substitution

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2 years ago

Write an

agasfer [191]

Answer:

Step-by-step explanation:

y-(-2) = 1/2(x-12)

y+2 = 1/2x - 6

y = 1/2x -8

y = mx +b

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