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omeli [17]
3 years ago
14

What would the inverse be?

Mathematics
1 answer:
marta [7]3 years ago
8 0
Find the inverse of f(x)=2x-3.

1) replace "f(x)" with "y."   Then y=2x-3.
2) interchange x and y.  Then x=2y-3.                   x+3
3) solve this result for y.  Then 2y=x+3, or   y=----------------
                                                                                  2
                            -1           -1           x+3                        
4) replace y with f   (x):    f    (x) = ---------
                                                           2

This is the procedure, with the answer given.
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4 0
3 years ago
Find the length of the arch
posledela
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Help me solve for 16 and 17
Makovka662 [10]

Answers:

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3 0
3 years ago
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I need help on this problem please help me.
a_sh-v [17]

Answer:

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Step-by-step explanation:

Let x represent the quantity of 75% solution needed. The total amount of alcohol in the 60% mixture will be ...

75%·x + 10%·45 = 60%·(x+45) . . . . . there will be x+45 mL of solution in the end

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22.5/0.15 = x = 150 . . . . . . . . . . . . . . mL of 75% solution needed

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Step-by-step explanation:

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