Express the number in terms of i.-
A. -
i
B. 9i
C. -9i
D. 
i
Answer: C
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Find the inverse of the function.f(x) = 
, x ? 5
A. f-1(x) = x + 5, x ? 0 B. Not a one-to-one function C. f-1(x) = x2 - 5, x ? 0 D. f-1(x) = x2 + 5, x ? 0
A French restaurant offers a menu consisting of 4 different appetizers, 5 different salads, 3 different soups, 7 different main courses, and 8 different desserts. The restaurant offers different combinations of "fixed price dinners" on different days of the week.On Sundays, the "fixed price dinner" consists of a main course, a dessert, and any two of the other three types of items (i.e., appetizer and soup, or appetizer and salad, or soup and salad). Assuming you don't pass on any of these, how many "fixed price dinners" are possible on Sundays?
A. 2632 B. 2688 C. 1344 D. 3360 E. none of these
Provide an appropriate response.The train holds 175 passengers. It departs daily at 9:00 a.m. Let x represent the time and y represent the number of passengers. Write an equation which represents the relationship between the number of passengers on the train and the train's departure time. Describe the graph of this equation, and identify the intercepts.
What will be an ideal response?
Use the binomial theorem to expand the expression.(x - y)5
A. -x5 + 5x4y - 10x3y2 + 10x2y3 - 5xy4 + y5 B. x5 + 5x4y + 10x3y2 + 10x2y3 + 5xy4 + y5 C. x5 - y5 D. x5 - 5x4y + 10x3y2 - 10x2y3 + 5xy4 - y5