Factor completely.64a3 - 27b3
A. (4a - 3b)(16a2 + 9b2)
B. (4a + 3b2)(16a2 - 12ab + 9b2)
C. (4a - 3b)(16a2 + 12ab + 9b2)
D. (64a - 3b)(a2 + 12ab + 9b2)
Answer: C
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Write an equation for a function that has a graph with the given characteristics.The shape of y = ?x? is vertically stretched by a factor of 2.8. This graph is then reflected across the x-axis. Finally, the graph is shifted 0.65 units downward.
A. f(x) = 2.8?x? - 0.65 B. f(x) = 2.8?-x? - 0.65 C. f(x) = -2.8?x? - 0.65 D. f(x) = 2.8?x - 0.65?
Answer the question.In 2000 your salary increased by 5% . In 2001 you received a 5% pay cut. After the two changes, how does your salary compare to your original salary?
A. Cannot be determined from the information given B. It is lower. C. It is higher. D. It is unchanged.
Find the interval of convergence of the series.
A. -5 < x < 9
B. - 
< x < 
C. -5 ? x ? 9
D. 1 ? x < 3
Solve the equation.
= 2.7
A. {2.7, -2.7} B. {729} C. {2.7} D. {-2.7}