Evaluate the expression, given x = -2, y = 3, and a = -4.
A. -56
B. -14
C. -1
D. 56
Answer: B
Mathematics
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Use cross products to determine whether the pair of fractions is equivalent.- 
and - 
A. not equivalent B. equivalent
Mathematics
Simplify by taking the roots of the numerator and the denominator. Assume all variables represent positive numbers.
A. 
B. 
C. 
D. 
Mathematics
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.(-3x5y-6)(5x-1y)
A. -15x4y7
B. 
C. 
D. 
Mathematics
Divide.3,415 ÷ 4
A. 853 R 3 B. 853 R 2 C. 852 R 7 D. 853
Mathematics