State the domain of the rational expression.
A. {x|x ? 2}
B. {x|x ? 
, 2}
C. {x|x ? -2}
D. All real numbers
Answer: C
Mathematics
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Use the requested method to find the product.47 ? 43; use the Russian peasant method
A. 2031 B. 2121 C. 2021 D. 2011
Mathematics
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log17
A. 
log17mn - 
log178
B. 
log17m + 
log17n - log178
C. 
log17m ? 
log17n ÷ 
log178
D. 
log17m + 
log17n - 
log178
Mathematics
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set. 4x - 4y - 5z = -48 4x + 2y + 8z = 98-6x - 4y + 2z = -42
A. {(6, 5, 8)} B. {(5, -7, -8)} C. {(7, 8, 7)} D. {(5, 7, 8)}
Mathematics
Use the vectors u, v, and w in the accompanying figure to graph the vector. 
z - v
A. 
B. 
C. 
D. 
Mathematics