Solve the system of linear inequalities.y > 
x - 3y ? -x + 3
A. 
B. 
C. 
D. 
Answer: D
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For the curve r(t), write the acceleration in the form aTT + aNN.r(t) = (t + 3)i + (ln(cos t) - 3)j + 3k
A. a = (sec t tan t)T + (sec t)N B. a = (-sec t tan t)T - (sec t)N C. a = (sec t tan t)T - (sec t)N D. a = (-sec t tan t)T + (sec t)N
Solve the inequality, then graph the solution.-16r - 16 ? -4(3r + 8)
A. (4, ?)
B. (-?, 4]
C. [4, ?)
D. (-?, 4)
Perform the indicated operations and write the resulting polynomial in descending order of degree.(9m2n - 8mn + 8mn2) - (3m2n + 7mn - 4mn2)
A. 6m2n - 3 B. 6m4n2 - 15mn + 12m2n4 C. 6m4n2 - 15m2n2 + 12m2n4 D. 6m2n - 15mn + 12mn2
Use the quadratic formula or graphing methods to solve the inequality.9x2 ? 3 - 3x
A. x ? 
? -0.768
B. 
? -0.768 ? x ? 
? 0.434
C. x ? 
? -0.768 or x ? 
? 0.434
D. x ? 
? 0.434