Use the Leading Coefficient Test to determine the end behavior of the polynomial function.f(x) = x - 3x2 - 2x3
A. y ? ? as x ? -? and y ? ? as x ? ?
B. y ? -? as x ? -? and y ? -? as x ? ?
C. y ? ? as x ? -? and y ? -? as x ? ?
D. y ? -? as x ? -? and y ? ? as x ? ?
Answer: C
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Perform the indicated operation.
- 
A. 
B. 
C. 
D. 
Solve the problem.A rectangular enclosure must have an area of at least 2400 yd2. If 
of fencing is to be used, and the width cannot exceed the length, within what limits must the width of the enclosure lie?
A. 0 yd ? width ? 30 yd B. 55 yd ? width ? 80 yd C. 30 yd ? width ? 55 yd D. 30 yd ? width ? 80 yd
Solve the problem.The area of a square is numerically 12 more than the perimeter. Find the length of the side.
A. 72 units B. 18 units C. 24 units D. 6 units
Solve the problem.Since 2001, electronic payments made to an online company have increased exponentially.
Let f(t) be the number of electronic payments in the year that is t years since 2006. A possible equation of f is 
Predict the number of electronic payments that will be made in 2020.
A. 467 thousand B. 1269 thousand C. 3449 thousand D. 23 thousand