Find the coordinate vector [x]B of the vector x relative to the given basis B.b1 = 
, b2 = 
, x = 
, and B = 
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Consider the graph below, which gives the velocity of an object moving along a line. Assume time is measured in hours and distance is measured in miles. The areas of the three regions bounded by the velocity curve and the t-axis are also given. 
(a) What is the displacement of the object over the interval [0, 6]?(b) What is the total distance traveled by the object over the interval [2, 6]?
A. (a) 41 miles (b) 34 miles B. (a) 27 miles (b) 21 miles C. (a) 13 miles (b) 6 miles D. (a) 13 miles (b) 34 miles
Find the distance from P1 to P2.P1 = (-1, -1, 2) and P2 = (3, 0, 3)
A. 3
B. 
C. 
D. 4
Find the least common denominator of the rational expressions.
and 
A. (x + 5)(x - 3)(x + 6) B. (x - 3)(x + 6) C. (x - 5)(x + 3)(x + 6) D. (x + 5)(x - 3)
Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 