Simplify by writing with positive exponents. Evaluate if necessary. Assume that all variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Find v ? u.v = 4i - 7j and u = -9i - 6j
A. -5i - 13j B. -78 C. -36i + 42j D. 6
Mathematics
Find a number to replace the question mark so that the given fractions are equivalent.
= 
A. 3 B. 63 C. 21 D. 42
Mathematics
Graph.-3x = -5
A. 
B. 
C. 
D. 
Mathematics
Answer the question.What is the least and maximum number of lines obtainable with 6 points?
A. 2, 15 B. 1, 15 C. 1, 18 D. 1, 9
Mathematics