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3 years ago

I need help i'm struggling with this work

Mathematics

2 answers:

valentinak56 [21]3 years ago

6 0

Answer:

$y=0.5x+2$

Step-by-step explanation:

Finding the inverse of a function is essentially finding the complete opposite of a given function. An easy trick can be used to find the inverse of a function. This trick is essentially thinking of the evaluator (f(x)) as another variable. Solve the function for (x) in terms of (f(x)); use inverse operations to do so. After completing this process, rewrite the function such that it is in the inverse function notation; switch the position of the (f(x)) and the (x), then indicate that it is an inverse function.

$f(x)=2x-4$

Inverse operations,

$f(x)=2x-4$

$f(x)+4=2x$

$\frac{f(x)+4}{2}=x$

Simplify,

$0.5f(x)+2=x$

Rewrite in inverse function notation,

$f^-^1(x)=0.5x+2$

$y=0.5x+2$

Mamont248 [21]3 years ago

3 0

I believe the correct answer is C I could be wrong tho

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HACTEHA [7]

In this question, the Poisson distribution is used.

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:

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In which

x is the number of sucesses

e = 2.71828 is the Euler number

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

Parameter of 5.2 per square yard:

This means that $\mu = 5.2r$ , in which r is the radius.

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We want:

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Thus:

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We have that:

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

$P(X = 0) = \frac{e^{-5.2r}*(5.2r)^{0}}{(0)!} = e^{-5.2r}$

Then

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$\ln{e^{-5.2r}} = \ln{0.01}$

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Thus, the radius should be of at least 0.89.

Another example of a Poisson distribution is found at brainly.com/question/24098004

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3 years ago

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3 years ago

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