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3 years ago

How do you find inverses

Mathematics

2 answers:

pshichka [43]3 years ago

7 0

Answer:

1. First, replace f(x) with y . ...

2. Replace every x with a y and replace every y with an x .

3. Solve the equation from Step 2 for y . ...

4. Replace y with f−1(x) f − 1 ( x ) . ...

5. Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.

Step-by-step explanation:

MrMuchimi3 years ago

5 0

How To Find Inverses:

1. First, replace f(x) with y . ...

2. Replace every x with a y and replace every y with an x .

3. Solve the equation from Step 2 for y . ...

4. Replace y with f−1(x) f − 1 ( x ) . ...

5. Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.

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Step-by-step explanation:

For Chuck's trip:

D=RT

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T= 104 / (R+4)

For Dana's trip:

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Set both equation for Chuck's and Dana together

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Then we cross multiply

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8R = 384

To get R, divide both side by 8

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This means Dana's speed is 48mph

Chuck's speed will be: 48mph+4mph = 52mph

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Step-by-step explanation:

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