Give the domain of the function.f(x) = 
A. (-?, 4) ? (4, 9) ? (9, ?)
B. (-?, -4) ? (-4, 9) ? (9, ?)
C. (-?, -9) ? (-9, 4) ? (4, ?)
D. (-?, -9) ? (-9, -4) ? (-4, ?)
Answer: C
Mathematics
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At what points is the given function continuous?f(x, y, z) = ln(x + y + z - 8)
A. All (x, y, z) such that x + y + z ? 8 B. All (x, y, z) such that x + y + z > 8 C. All (x, y, z) D. All (x, y, z) in the first octant
Mathematics
Find the difference.- 
- 
A. - 
B. - 
C. 
D. 
Mathematics
Provide an appropriate response.By using matrix reduction, solve the system: 
What will be an ideal response?
Mathematics
Evaluate the expression.641/3
A. 4 B. 256 C. 12 D. 768
Mathematics