Find all solutions of the equation in the interval [0, 2?).tan 2x = -1
A. 
B. 
C. 
D. 
Answer: D
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Set up an integral for the length of the curve.y = x5, 0 ? x ? 1
A. 
B. 
C. 
D. 
Examine the discriminant of each equation and determine the nature of the roots.7x2 = 4x - 2
A. One real solution B. No real solutions C. Two real solutions
Solve the problem.To find the distance AB across a river, a distance BC = 1,101 m is laid off on one side of the river. It is found that B = 112.8° and C = 12.0°. Find AB rounded to the nearest meter.
A. 279 m B. 230 m C. 233 m D. 282 m
Marcus Corporation currently sells 150,000 units per year at a price of $4.00 a unit. Its variable costs are 30 percent of sales, and its fixed operating costs are $300,000. What is Marcus's degree of operating leverage (DOL) at sales equal to 150,000 units?
A. 1.4× B. 2.2× C. 3.5× D. 2.0× E. 5.0×