At what points is the given function continuous?f(x, y, z) = 
A. All (x, y, z) such that x ? 0 and y + z ? 0
B. All (x, y, z) in the first octant
C. All (x, y, z) such that x - y - z ? 0
D. All (x, y, z)
Answer: D
Mathematics
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A. {60} B. {25} C. {50} D. {40}
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Round the following decimal to the indicated place. 4.054; hundredths
A. 4.06 B. 4.07 C. 4.05 D. 4.04
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Find the solution set of the equation. If the equation has no solution write ? and if the equation is an identity so state.
+ 
= 
- 
A. 
B. ?
C. {44}
D. 
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Simplify the expression, writing the answer as a single term without negative exponents.
A. 
B. 
C. 
D. 
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