Decide whether or not the functions are inverses of each other.f(x) = (x - 4)2, x ? 4; g(x) = 
A. No
B. Yes
Answer: A
Mathematics
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Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.x + y + z= 7x - y + 2z=72x + 3z=14
A. {(- 
+ 7, 
, z)}
B. {(- 
- 7, 
, z)}
C. {(- 
- 7, 2z, z)}
D. {(- 
+ 7, 2z, z)}
Mathematics
Evaluate and simplify completely. Write your answer as a mixed number if possible.18
- 6
A. 11
B. 11
C. 12
D. 11
Mathematics
Find 31% of 360oRound your answer to the nearest tenth.
A. 90.0o B. 82.8o C. 117.8o D. 111.6o E. 108.0o
Mathematics
Express the sum in sigma notation.3 + 6 + 9 + 12 + 15
A. 
B. 
C. 
D. 
Mathematics