Solve.Andy works part time at a watch repair shop in the mall. Today, Andy's shift was 6 hours long. How many seconds did Andy work today?
A. 3600 seconds
B. 8640 seconds
C. 360 seconds
D. 21,600 seconds
Answer: D
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Rewrite the system of inequalities, adding slack variables or subtracting surplus variables as needed.2x1 + x3 ? 562x1 + x2 ? 34 x1 + x3 ? 28
A. 2x1 + x3 - s1 = 56 2x1 + x2 + s2 = 34 x1 + x3 + s3 = 28 B. 2x1 + x3 - s1 = 56 2x1 + x2 - s2 = 34 x1 + x3 - s3 = 28 C. 2x1 + x3 + s1 = 56 2x1 + x2 + s2 = 34 x1 + x3 + s3 = 28 D. 2x1 + x3 + s1 = 56 2x1 + x2 - s2 = 34 x1 + x3 - s3 = 28
Solve the inequality.
> 0
A. (-3, 2) or (2, 3) B. (-3, 2) or (3, ?) C. (-?, -3) or (2, 3) D. (-?, -3) or (3, ?)
Multiply.(-10x - 7)2
A. 100x2 + 49 B. -10x2 + 49 C. -10x2 + 140x + 49 D. 100x2 + 140x + 49
Solve the inequality.x3 - 7x2 - 18x > 0
A. (-9, 0) or (2, ?) B. (-2, 0) or (9, ?) C. (-?,-2) or (0, 9) D. (-2, ?)