Perform the indicated operation. Simplify, if possible.
- 
A. 
B. 
C. 
D. 
Answer: C
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Describe the given set of points with a single equation or with a pair of equations.The circle of radius 8 centered at the point (2, -4, 4) and lying in a plane parallel to the xy plane
A. (x - 2)2 + (y - 4)2 = 82 and x + y = -2
B. (x - 2)2 + (y - 4)2 = 82 and z = 4
C. 
2+ 
2= 82 and z = 4
D. 
2 + 
2+ 1 = 82
Graph the rational function.f(x) = 
A. 
B. 
C. 
D. 
Solve the equation.(x + 4)(x2 + 6x - 27) = 0
A. {4, 9, -3} B. {-4} C. {-4, -9, 3} D. {4}
Solve the problem.A college student earned $8800 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 
and the rest at 
If he received a total of $572 in interest at the end of the year, how much did he invest at 
A. $1466 B. $4400 C. $6600 D. $2200