Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.
(log4 x + log4 y)
A. 
B. log4 
C. log4 
+ log4 
D. log4 
Answer: D
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Solve the problem.Alamo, Brushy, Chet, and Dolly are in an armadillo race. Chet is the slowest. Dolly is faster than Alamo, but slower than Brushy. Name the finishing order of the armadillos.
A. Alamo, Dolly, Brushy, Chet B. Brushy, Alamo, Dolly, Chet C. Alamo, Brushy, Dolly, Chet D. Brushy, Dolly, Alamo, Chet
Evaluate the expression 
for each choice of a, b, and c.5x2 + 6 = x
A. 
+ 
i
B. 2
C. 
+ 
i
D. 1 - 
Graph the ellipse and label the center.
+ 
= 1
A. C(0, 3)
B. C(3, 0)
C. C(-3, 0)
D. C(0, -3)
Solve the system by substitution. If the system is inconsistent or dependent, say so.
A. (15, 1) B. (0, -6) C. infinite number of solutions of the equation -6x - 18y = -2; dependent system D. empty set solution; inconsistent system