Use a sketch to find the exact value of y.y = cot
A. 
B. 
C. 
D. 
Answer: D
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What property of whole-number multiplication justifies the equality?5(x + 8) = 5x + 5 ? 8
A. Commutative property B. Distributive property C. Multiplicative-identity property D. Associative property
Select the more reasonable temperature for the item.Making hot tea90°C90°F
A. 90°C B. 90°F
Solve the problem.Suppose a cost-benefit model is given by f(x) = 
,where f(x) is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 95%, and round to the nearest dollar.
A. $5900 B. $5605 C. $19,000 D. $112,100
Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. Determine where the function is increasing and where it is decreasing. If necessary, round answers to two decimal places.f(x) = x3 - 3x + 3, (-2, 2)
A. local maximum at (1, 1) local minimum at (-1, 5) increasing on (-2, -1) and (1, 2) decreasing on (-1, 1) B. local maximum at (-1, 5) local minimum at (1, 1) increasing on (-1, 1) decreasing on (-2, -1) and (1, 2) C. local maximum at (1, 1) local minimum at (-1, 5) increasing on (-2, -1) decreasing on (-1, 1) D. local maximum at (-1, 5) local minimum at (1, 1) increasing on (-2, -1) and (1, 2) decreasing on (-1, 1)