Determine whether the equation defines y as a function of x.y = 
A. Yes
B. No
Answer: A
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Find the average value of the function f over the given region.f(x, y) = 
over the square 1 ? x ? 4, 1 ? y ? 4.
A. 
2
B. 
2
C. 
D. 
A bus company operates four bus routes (A, B, C, and D) and 100 buses. The buses are apportioned among the routes on the basis of average number of daily passengers per route which is given in the following table.
The standard divisor represents
A. the number of buses required for 100,000 passengers. B. the daily average number of passengers per 100 buses. C. the number of passengers that one bus is able to transport per day. D. the daily average number of passengers per bus. E. none of these
Find the ending balance in the account register.
A. $488.19 B. $972.26 C. $1511.31 D. $766.35
The letters r and ? represent polar coordinates. Write the equation using rectangular coordinates (x, y).r = 10 sin ?
A. 
= 10y
B. x2 + y2 = 10y
C. x2 + y2 = 10x
D. 
= 10x