Multiply. Simplify by combining like terms.
2
A. 81x2y2 - 
xy - 
B. 81x2y2 + 2xy
C. 
x2y2 + 2xy + 81
D. 
x2y2 - 2xy + 81
Answer: C
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Sketch the graph and show all relative extrema and inflection points.y = 12x - x3
A. 
Inflection point: (0, 12)
B. 
Relative maximum: (2, 16)
Relative minimum: (-2, -16)
Inflection point: (0, 0)
C. 
Relative maximum: (-2, 16)
Relative minimum: (2, -16)
Inflection point: (0, 0)
D. 
Relative maximum: (0, 12)
Twenty teenagers were asked to give their current savings account balances. Use the balances shown in the list to complete the frequency distribution table and construct a histogram. 123?1296?899?3189?31452425?620?2700?2459?10801250?661?2119?2499?26502500?1500?1499?1620?2399 
What will be an ideal response?
Determine which elementary row operation(s) applied to the first matrix will yield the second matrix.
, 
What will be an ideal response?
Determine the order of the matrix.
A. 1 × 4 B. 4 C. 4 × 1 D. 1