Use the properties of logarithms to expand the expression as a sum, difference, and/or constant multiple of logarithms. (Assume all variables are positive.)
?
?
A. 3log8 x + 3log8 y + 3log8 z
B. 3log8 x + 3log8 y - 3log8 z
C. 
D. 3log8 x - 3log8 y - 3log8 z
E. 3log8 x - 3log8 y + 3log8 z
Answer: D
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Compute.-?24?
A. - 
B. 24
C. 0
D. -24
Determine whether the system corresponding to the given augmented matrix is consistent or inconsistent. If it is consistent, give the solution.
A. consistent; x = 7, y = -3, z = -5; (7, -3, -5) B. consistent; x = 7 + 5z, y = -3 - 9z, z any real number or {(x, y, z)|x = 7 + 5z, y = -3 - 9z, z any real number} C. consistent; x = 7 - 5z, y = -3 + 9z, z any real number or {(x, y, z)|x = 7 - 5z, y = -3 + 9z, z any real number} D. inconsistent
Use the graph to determine the domain and range of the function.
A. domain: all real numbers range: all real numbers B. domain: all real numbers range: {y|y ? 0} C. domain: {x|x ? 0} range: {y|y ? 0} D. domain: {x|x ? 0} range: all real numbers
Simplify the expression.(-4)-2
A. 
B. - 
C. -16
D. 16