Factor completely.x2 + 5xy - 104y2
A. (x + 13y)(x - 8y)
B. (x - 13y)(x + 8y)
C. (x - y)(x + 8y)
D. (x - 13y)(x + y)
Answer: A
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 4 sin t - sin 4t, y = 4 cos t - cos 4t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Use Method I to simplify the complex rational expression.
A. k - 6
B. 
C. 
D. 
Find the derivative of the function.y = 
A. y ' = 
B. y ' = 
C. y ' = 
D. y ' = 
Solve the application using the percent equation. Answer with a complete sentence.Alex and Juana went on a 45-mile canoe trip with their class. On the first day they traveled 27 miles. What percent of the total distance did they canoe?
A. They canoed 0.6% of the total distance. B. They canoed 200% of the total distance. C. They canoed 2% of the total distance. D. They canoed 60% of the total distance.