Multiply the polynomials and simplify by combining like terms.(5y2 - y + 3)(-4y3 - 6y + 3)
A. -20y5 + 6y2 + 9
B. -20y5 + 4y4 - 42y3 + 21y2 - 21y + 9
C. -20y5 - 4y4 - 42y3 + 21y2 - 21y - 9
D. 20y6 + 4y4 + 42y3 + 21y2 - 21y + 9
Answer: B
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with n = 10 steps.
A. 
B. 
C. 
D. 
Express the vector as a product of its length and direction.
i - 
j + 
k
A. 
B. 
C. 
D. 
The following chart shows some figures from an income statement. Prepare a vertical analysis by expressing each item as a percent of net sales. Round percents to the nearest tenth of a percent.
A. 57.6%, 13.3%, 54.2%, 4.8% B. 57.6%, 13.5%, 12.5%, 8.3% C. 57.6%, 23.0%, 12.5%, 8.3% D. 57.6%, 13.3%, 7.2%, 4.8%
Solve the problem.If a polygon, of n sides has 
n(n - 3) diagonals, how many sides will a polygon with 230 diagonals have?
A. 23 sides B. 25 sides C. 22 sides D. 24 sides