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Mathematics
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Determine if the equations in the given pair are equivalent. Each equation has only one solution.k - 12 = 1 and k = 13
A. Equivalent B. Not equivalent
Mathematics
Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = i - j, w = 2i + 4j
A. 116.6° B. -18.4° C. 18.4° D. 108.4°
Mathematics
Solve the inequality. Graph the solution set and write the solution set in set-builder notation.4x2 + 19x - 5 ? 0
A. 
B. 
C. 
D. 
Mathematics
Find the sum of the series.
A. 21 B. 12 C. 42 D. 23
Mathematics