Perform the indicated operations.(3x2 - xy - y2) + (x2 + 7xy + 10y2)
A. 4x2 + 8xy + 11y2
B. 3x2 + 7xy + 10y2
C. 4x2 + 6xy + 9y2
D. 2x2 - 8xy - 11y2
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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Set the viewing rectangle of your graphing calculator to 
by 
to solve the problem.Graph the following set of parametric equations for 0 ? t ? 2? and identify the letter of the alphabet that the graph resembles.x1 = -2 - 1.2 sin(0.7t),y1 = 3 - 1.2 cos(0.7t)x2 = -2 + 1.2 sin(0.7t),y2 = 0.6 + 1.2 cos(0.7t)
A. C B. O C. S D. U
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Simplify using scientific notation. Express the answer in standard notation.
A. .004 B. 40 C. 4 D. .04
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Find the average.99, 109, 85, 105, 82, 109, 83
A. 84 B. 109 C. 96 D. 99
Mathematics