Multiply and simplify.
? 
A. 1
B. 
C. -1
D. 0
Answer: A
Mathematics
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Convert the number to the indicated base.53six to base three
A. 100three B. 1020three C. 1120three D. 111three
Mathematics
Solve the system of nonlinear equations using the method of elimination.
A. (-2, 0), (2, 0), (0, -2) B. (-2, 0), (0, 2), (0, -2) C. (-2, 0), (2, 0) D. (-2, 0), (2, 0), (0, 2)
Mathematics
Fill in the blank with one of the words or phrases listed below. 
When two lines intersect, four angles are formed. Two of these angles that are opposite each other are called 
angles.
A. vertical B. adjacent C. supplementary D. complementary
Mathematics
Divide. Express the quotient in lowest terms.
÷ 
A. 
B. 
C. - 
D. 
Mathematics