Factor completely.147x2 + 84x + 12
A. 3(7x - 2)2
B. 3(7x + 2)(7x - 2)
C. 3(49x + 4)2
D. 3(7x + 2)2
Answer: D
Mathematics
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An AC circuit has R = 8.2 Kê and xL = 2.4 Kê. Find the phase angle.
a. 2ø b. 16ø c. 22ø d. 10ø
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Divide.(12x7 - 18x5 + 21x2) ÷ (-3x2)
A. 12x5 - 18x3 + 21 B. -4x5 + 6x3 - 7 C. -4x5 - 18x5 + 21x2 D. -4x7 + 6x5 - 7x2
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Solve the system of linear equations.
A. 
B. 
C. 
D. 
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Solve.A musician plans to perform 5 selections for a concert. If he can choose from 8 different selections, how many different ways can he arrange his program?
A. 40 B. 32,768 C. 6720 D. 56
Mathematics