sokehs9
10.03.2021 •
Mathematics
The sum of 38 and twice a number x is 124. What is -2x - 5?
A)
-101
B)
-91
C)
46
D)
86
Solved
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Ответ:
Answer is in the photo. I can't attach it here, but I've uploaded it to a file hosting. link below! Good Luck!
cutt.ly/Kzv78uJ
Ответ:
f^-1 (-15) = -6
f^-1(4) + f(9) = 0
Step-by-step explanation:
f^-1 (-15) =
Look where the output is -15 and find the x value ( x=-6)
Since where are using the inverse function, the input becomes the output and the output and the output becomes the input
f^-1 (-15) = -6
f^-1 (4) = -11 (inverse function)
f(9) = 11 ( regular function)
f^-1(4) + f(9) = -11+11 = 0