nickeh30
17.11.2021 •
Mathematics
How do i do this question help me please
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Ответ:
6
2(x - 5)
0
Step-by-step explanation:
f(x) = x/2 + 5
a) f(2) = 2/2 + 5
= 6
b)
we will replace f(x) with y
y = x/2 + 5
now we replace x with y and y with x
x = y/2 + 5
x - 5 = y/2
2(x - 5) = y
now replace y with
so
2(x - 5)
c)
= 2 (5 - 5)
= 0
Ответ:
S/15
Step-by-step explanation: