List the potential rational zeros of the polynomial function. Do not find the zeros.f(x) = 3x5 - 5x2 + 6x - 1
A. ± 1, ± 
B. ± 3, ± 
C. ± 1, ± 3
D. ± 1, ± 3, ± 
Answer: A
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Solve.Use the approximations ln 4 ? 1.386 and ln 5 ? 1.609 together with the properties of natural logarithms to calculate an approximation to ln 
.
A. 0.805 B. 0.693 C. 1.268 D. 2.589
Use rational exponents to simplify the expression, if possible. Then, write the answer in radical form.
A. 2187
B. 
C. 729
D. 243
Find the quotient and write in rectangular form. First convert the numerator and denominator to trigonometric form.
A. -4 i
B. -4 - 4i
C. - 2
- 2 i
D. -4
Let matrix A represent the sales (in thousands of dollars) of a toy company in 1994 in three cities, let B represent the sales in the same cities in 1995, and let C represent the sales in the same cities in 1996. 
A = 
; B = 
; C = 
What is the change in sales between 1994 and 1995?
What will be an ideal response?