Determine the inequality which matches the calculator graph. Do not use your calculator. Instead, use your knowledge of the concepts involved in graphing inequalities.
A. y ? -3x + 5
B. y ? 3x + 5
C. y ? 3x + 5
D. y ? -3x + 5
Answer: D
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Solve.Tom Quig traveled 210 miles east of St. Louis. For most of the trip he averaged 60 mph, but for one period of time he was slowed to 10 mph due to a major accident. If the total time of travel was 6 hours, how many miles did he drive at the reduced speed?
A. 50 mi B. 40 mi C. 30 mi D. 25 mi
Solve the problem. 3xy = z2 x - y + z = 3x2 + y2 - 2z2 = -72
A. {(3, 9, 9), (-3, -9, 9)} B. {(3, 9, 9), (9, 3, 9)} C. {(-3, -9, 9), (9, 3, 9)} D. {(3, 9, 9), (-9, -3, 9)}
Find the first year's depreciation using the sum-of-the-years'-digits method of depreciation. Round to the nearest dollar.
A. $15,556 B. $61,250 C. $8,750 D. $54,444
Decide whether or not the ordered pair is a solution to the equation.x + 5 = 0; (-5, 8)
A. Yes B. No