Math, asked by taeshu, 1 year ago

.plz solve ques no. 2

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Answers

Answered by Anonymous

0

Answer:

2.8

Step-by-step explanation:

Let b = f^(-1)(7).

Then...

b = f^(-1)(7)

=> 7 = f(b)

=> 7 = 5b - 7

=> 5b = 14

=> b = 2.8

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