Tayj91
29.01.2020 •
Mathematics
Identify the geometric mean of 3 and 48.
19
144
12
16
Solved
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Ответ:
To find f(-20), first figure out which piece x = -20 fits with.
Since -20 < -12, x = -20 first in the domain used by the third piece.
For f(-20), treat this function as if it was just f(x) = 3x-7.
f(-20) = 3(-20) -7
= -60 - 7
= -67