Express the number as the product of prime factors. Write the answer in exponential form.45
A. 52 ? 3
B. 32 ? 5
C. 9 ? 5
D. 33 ? 5
Answer: B
Mathematics
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If r is a positive number and the point (x, y) is in the indicated quadrant, decide whether the given ratio is positive or negative.IV, 
A. Negative B. Positive
Mathematics
Find the angle between the given vectors, to the nearest tenth of a degree.t = 
, s = 
A. 47.7° B. -70.3° C. 160.3° D. 19.7°
Mathematics
Solve the system of equations by the elimination method. Check your solutions. For any dependent equations, write your answer in ordered pair form.
A. {(3, 9)} B. {(4, 9)} C. ? D. {(4, 8)}
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics