At what points is the given function continuous?f(x, y, z) = 
A. All (x, y, z) ? ± (6, -5, -8)
B. All (x, y, z) ? (0, 0, 0)
C. All (x, y, z)
D. All (x, y, z) ? (6, -5, -8)
Answer: D
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Solve.For a resistor in a direct current circuit that does not vary its resistance, the power that a resistor must dissipate is directly proportional to the square of the voltage across the resistor. The resistor must dissipate 
watt of power when the voltage across the resistor is 13 volts. Find the power that the resistor must dissipate when the voltage across it is 26 volts.
A. 
watts
B. 
watt
C. 
watt
D. 
watt
Find the composite function for the given functions and state the domain. h ? g ? f for f(x) = 
, g(x) = 
, and h(x) = 4x+ 8
A. 
+ 2
B. 4
+ 8
C. 
D. 
+ 8
Add or subtract.(3 - 3i) + (2 + 6i)
A. -5 - 3i B. 1 + 9i C. 5 - 3i D. 5 + 3i
Perform the indicated operations. Simplify where possible.
+ 
A. 
B. 
C. 0
D. 