Find the LCD for the given fractions.
and 
A. 4
B. 48
C. 16
D. 12
Answer: D
Mathematics
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Factor completely.20z4 + 3z2 - 9
A. (4z4 + 3)(5z - 3) B. (4z2 + 3)(5z2 - 3) C. (5z2 + 3)(4z2 - 3) D. (5z4 + 3)(4z - 3)
Mathematics
Solve the inequality. Express your answer using interval notation.3x + 7 ? 2x + 12
A. (-?, 5)
B. [5, ?)
C. [19, ?)
D. (-?, 5]
Mathematics
Graph the system of inequalities. Shade the region that represents the solution set.y > x210x + 3y ? 30 
A. 
B. 
C. 
D. 
Mathematics
Find the nth term an of the geometric sequence.1.4, -0.98, 0.686, -0.4802, . . .
A. an = -1.4(0.7)n-1 B. an = 1.4(-0.7)n C. an = 1.4(-0.7)n-1 D. an = -1.4(0.07)n
Mathematics