Approximate the coordinates of each turning point by graphing f(x) in the standard viewing rectangle. Round to the nearest hundredth, if necessary.f(x) = -2x2 + 8x - 10
A. (-2, -2)
B. (-2, 18)
C. (2, 18)
D. (2, -2)
Answer: D
Mathematics
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Find the eccentricity e of the hyperbola.8x2 - 9y2 = 72
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B. 
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D. 
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Perform the indicated operation. Simplify, if possible.
+ 
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B. 
C. 
D. 
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Evaluate the expression for the given values. Expression your answer as a fraction unless otherwise indicated.
x = 9, y = 10
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B. 
C. 
D. 
Mathematics
Graph the curve whose parametric equations are given.x = 4 tan t, y = 2 sec t; 0 ? t ? 2?
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B. 
C. 
D. 
Mathematics