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3 years ago

If f(x) = 2x+1/x-4 what is the value of f^-1(3)

Mathematics

1 answer:

Olegator [25]3 years ago

3 0

Answer:

f^-1(3) = 1.719 or f^-1(3) = 0.149

Step-by-step explanation:

for inverse function x and y coordinates are flipping so graph the function and find for what x - coordinate y- coordinate = 3

in case that f(x) = $2x + \frac{1}{x-4}$ than f^-1(3) = 1.719

in case that f(x) = $2x + \frac{1}{x} -4$ than f^-1(3) = 0.149

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3 years ago

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Answer:

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- the probability she will not win the dinner for two is 0.984

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Step-by-step explanation:

Given the data in the question;

fortune cookies; $1 per cookies

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a) Lisa bought 12 cookies. What is the probability she will win the dinner for two?

P( she will win ) = Number of cookies bought / Total number of cookies

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P( she will not win ) = 0.984

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b) Lisa's expected earnings can be found by multiplying the value of the dinner by the probability that she will win. What are Lisa's expected earnings? (Round your answer to two decimal places.)$

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Lisa's earning = $35 × 0.01615

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Therefore, Lisa's expected earnings is $0.57

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Lisa's contribution = ( 12 × $1 ) - $ 0.57

Lisa's contribution = $12 - $0.57

Lisa's contribution = $11.43

Therefore, Money she effectively contributed to the hiking club is $11.43

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