Perform the division.

A. x + 7
B. x - 12
C. x3 - 12
D. x2 + 7


Answer: A

Mathematics

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Find the unit tangent vector of the given curve.r(t) = (1 + t)3/2i   + (1 - t)3/2j  + tk

A. T(t) = i + j + k
B. T(t) = i - j + k
C. T(t) = i  - j + k
D. T(t) = i - j + k

Mathematics

Give the coordinates of the points shown on the graph.

A. A = (7, 4), B = (6, -4) B. A = (4, 30), B = (6, -4) C. A = (7, 4), B = (-4, 6) D. A = (7, 6), B = (4, 6)

Mathematics

Find the area of the shaded region.

A. 2 + 
B. 2 + ?
C. 2
D. 2 - 

Mathematics

Factor completely, if possible.r2- 4r + 4

A. (r - 4)(r + 4) B. (r + 2)2 C. (r - 2)2 D. (r - 2)(r + 2)

Mathematics