At the given point, find the line that is normal to the curve at the given point.x3y3 = 8, normal at (2, 1)
A. y = 2x - 3
B. y = 
x
C. y = -2x + 5
D. y = - 
x + 2
Answer: A
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?Which of the following is not part of the process of constructing a histogram?
A. ?Grouping data into equal size numerical intervals. B. ?Grouping data in non-numerical categories. C. ?Finding the frequency in each interval. D. ?Graphing data, with intervals on the horizontal axis and frequency on the vertical axis. E. ?The sum of the frequencies equals the total number of data.
Find the interval of convergence of the series.
A. 5 ? x ? 7 B. x ? 7 C. -? < x < ? D. 0 ? x ? 12
Solve the problem.The speed of a stream is 5 mph. If a boat travels 
downstream in the same time that it takes to travel 
upstream, what is the speed of the boat in still water?
A. 15 mph B. 18 mph C. 17 mph D. 10 mph
Multiply and simplify.
? 
A. x - y
B. x2 - y
C. 1
D. 