Write the equation for the plane.The plane through the point P(10, 2, 8) and perpendicular to the line 
A. 4x + 9y - z = -50
B. 4x + 9y - z = 50
C. 4x + 9y + z = 50
D. 4x + 9y - z = 21
Answer: B
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Solve.(x - 7)(x + 3) ? 0
A. (-?, -3] ? [7, ?) B. (7, ?) C. (-?, -7] ? [3, ?) D. (7, -3)
Solve the problem.Using the Maclaurin series for ln(1 + x), obtain a series for 
.
A. 
B. 
C. 
D. 
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.x2 - x - 63
A. (x + 7)(x - 9) B. prime C. (x - 63)(x + 1) D. (x - 7)(x + 9)
The figure below is a square ABCD with center O. (M, N, P, and Q are the midpoints of the sides.)
Which of the following rotations is a symmetry of the square?
A. a 60° clockwise rotation with center O B. a 90° clockwise rotation with center A C. a 90° clockwise rotation with center O D. a 90° clockwise rotation with center P E. none of these