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3 years ago

Please help with function notation question (see attached file)

Mathematics

1 answer:

adell [148]3 years ago

3 0

Answer:

3.5 and 5

Step-by-step explanation:

Given

f(x) = $\frac{x+5}{x}$

To evaluate f(2) substitute x = 2 into f(x)

f(2) = $\frac{2+5}{2}$ = $\frac{7}{2}$ = 3.5

Similarly for $f^{-1}$ (x)

$f^{-1}$ (2 ) = $\frac{5}{2-1}$ = 5

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I’m stuck and I would really like your help.

Neporo4naja [7]

Answer:

Answer: 1/12

Step-by-step explanation:

2/5x-4=8-3/5x.

We want to tank x out of the denominator by multiplying x on both sides.

2/5-4x=8x-3/5

Now we simplify

-12x=-1

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Put x in the equation to check it

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2 years ago

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Answer:

y + 8

Step-by-step explanation:

Smaller number = y (Given)

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Verification:

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3 years ago

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Step-by-step explanation:

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jolli1 [7]

Answer:

Step-by-step explanation:

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3 years ago

A taxi company charges $2.25 per ride plus $0.30 per mile. Enter a linear model represents the cost, C, as a function of d, the

Anna007 [38]

Answer:

C(d) = d(2.25) + m(0.3)

Step-by-step explanation:

A taxi company charges $2.25 per ride plus $0.30 per mile.

Let d represent number of rides..

Let m represent number of Miles...

Then let C represent the total cost for each ride at a specific number of Miles.

The linear model representing the cost as a function of d the total ride

C(d) = d(2.25) + m(0.3)

The values stand independently because the customer can choose a different right and a different mile.

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