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klio [65]
3 years ago
9

If f(x) = 2x - 9, then f(3) = -3. True False

Mathematics
2 answers:
DedPeter [7]3 years ago
6 0
True, if you plug 3 in where x is you will get the answer shown.
agasfer [191]3 years ago
3 0
True
work: f(3)=2(3)-9
f(3)=6-9
f(3)=-3
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What’s the correct answer for this?
Lynna [10]

Answer:

A.

Step-by-step explanation:

tan x= 6/8

usually tan θ = perpendicular / base

So,

we get perpendicular = 6, base = 8

Now using Pythagorean Theorem to find hypotenuse

hyp² = base² + Perp²

hyp² = 8² + 6²

hyp²= 64 + 36

hyp²=100

Taking sq root on both sides

hypotenuse = 10

Now

sin θ = Perpendicular / Hyp

sin x = 6 / 10

Now

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6 0
4 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:

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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)!}

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

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5 0
3 years ago
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Answer :

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The answer is A that’s the answer
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