Solve the inequality. Graph the solution set and write the solution set in set-builder notation.x2 + 4x + 4 ? 0
A. {x 
B. {x 
C. {x 
D. ?
Answer: C
Mathematics
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Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
A. 1248 B. 1440 C. 1280 D. 1552
Mathematics
Solve the problem.A coin is tossed upward from a balcony 
high with an initial velocity of 
During what interval of time will the coin be at a height of at least 
A. 0 ? t ? 1 (seconds) B. 0 ? t ? 5 (seconds) C. 4 ? t ? 5 (seconds) D. 5 ? t ? 10 (seconds)
Mathematics
Solve the inequality. Express your answer using interval notation.x + 1 < 4
A. (-?, 3]
B. (-?, 5)
C. (3, ?)
D. (-?, 3)
Mathematics
Graph the inequality.(x - 4)2 + (y + 3)2 ? 4
A. 
B. 
C. 
D. 
Mathematics