Find the equation of the least squares line.A study was conducted to compare the average time spent in the lab each week versus course grade for computer students. The results are recorded in the table below. Number of hours spent in lab (x) Grade (percent)(y) 10 96 11 51 16 62 9 58 7 89 15 81 16 46 10 51
A. y = 1.86 + 88.6x
B. y = 0.930 + 44.3x
C. y = 88.6 - 1.86x
D. y = 44.3 + 0.930x
Answer: C
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Solve the equation.
+ 8 = 0
A. 
B. 
C. 
D. ?
Solve the problem. Round to the nearest dollar unless otherwise stated.The Men's Shop made the following purchases of dress shirts:Beginning inventory:50 shirts at $73.89March:60 shirts at $46.90 June:75 shirts at $83.35August:35 shirts at $76.43A September inventory found 131 shirts remaining. Find the inventory value using the weighted average, FIFO, and LIFO methods. Round amounts to the nearest cent.
A. Weighted average: $9190.72 FIFO: $8258.85 LIFO: $9911.20 B. Weighted average: $15,434.80 FIFO: $9679.59 LIFO: $10,012.33 C. Weighted average: $9190.72 FIFO: $9911.20 LIFO: $8258.85 D. Weighted average: $9188.67 FIFO: $6143.90 LIFO: $10,918.85
Divide.6.3 ÷ (0.09)
A. 
B. 62.1
C. 6.21
D. 70
Rewrite the statement so the inequality symbol points in the opposite direction.2.11 < 2.43
A. 2.11 > 2.43 B. 2.43 > 2.11 C. 2.11 ? 2.43 D. 2.43 ? 2.11