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astra-53 [7]
3 years ago
11

Given f as described below.

Mathematics
1 answer:
Illusion [34]3 years ago
6 0

Answer with Step-by-step explanation:

We are given that a function

f:W\rightarrow W

Assign each whole number to its largest place value digit.

f(4)=4

f(14)=4

f(194)=9

We have to find the value of x that makes the equation 7 a true statement.

When f(x)=7

Then, the possible values of x are 7,127,27,257,... .

Because f(7)=7

f(127)=7

f(27)=7

f(257)=7

Therefore, the value of x =7,127,257,27,..

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