Answer:9
Step-by-step explanation:
The answer got to be 6. So 6+3=9
Answer:
Below in bold.
Step-by-step explanation:
y = 2x²-4
First find x in terms of y:
2x² = y - 4
x² = (y - 4)/2
x = √ [(y - 4)/2]
Now replace x by the inverse f-1(x) and y by x:
f-1(x) = √ [(x - 4)/2] (Note: it's the positive square root only)
Answer:
C. 130
Step-by-step explanation:
90 + 40 + ? = 180
? = 50 (the remaining angle)
Therefore, x = (180 - 50)
x = 130
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