Simplify.
A. 35
B. 
C. 35x2
D. 
Answer: A
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For the triangle, based on the side lengths given, decide whether it is equilateral, isosceles, or scalene. 
A. scalene B. isosceles C. equilateral and isosceles
If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.r(t) = (5 cos t)i + (8 sin t)jFind the acceleration vector.
A. a(t) = (-5 cos t)i + (-8 sin t)j B. a(t) = (5 cos t)i + (8 sin t)j C. a(t) = (5 sin t)i + (8 cos t)j D. a(t) = (-5 sin t)i + (-8 cos t)j
Graph the system of inequalities and the points of intersection of the graphs. Label the points of intersection with their coordinates.y ? x2 - 2y + 2x < 13 
A. 
B. 
C. 
D. 
Provide an appropriate response.What are the elements of the third row of the following matrix? 
A. 1, -5, 2, 6 B. 3, 4, 2 C. -2, 1, 3, 4 D. -2, -1, 2