Find the LCM of the given polynomials.8x - 72, x2 - 9x
A. 8x - 9
B. 8x(x - 9)
C. 8x2 - 9
D. 8x2 - 72
Answer: B
Mathematics
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Factor completely.20x4 + 31x2 + 12
A. (5x2 - 4)(4x2 - 3) B. (20x2 + 3)(x2 + 4) C. (4x2 + 1)(5x2 + 12) D. (4x2 + 3)(5x2 + 4)
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Simplify the expression. Assume that variables represent nonzero numbers.
3
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A projectile is fired with an initial velocity of 400 feet per second at an angle of 70° with the horizontal. To the nearest foot, find the maximum altitude of the projectile.
A. 2191 ft B. 2200 ft C. 2208 ft D. 2224 ft
Mathematics
Find the difference.12 - (-1)
A. 11 B. -13 C. 13 D. -11
Mathematics