Find the distance between the given point Q and the given line.Q(-9, 1, 10); x = -5 + 3t, y = 1 - t, z = 7 + 4t
A. 5
B. 6
C. 5
D. 6
Answer: A
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Use a half-angle formula to find the exact value of the expression.sin 
A. 
B. - 
C. 
D. - 
Find all points where the function has any relative extrema or saddle points and identify the type of relative extremum.f(x,y) = x2 + 2y2 - xy2
A. Relative maximum at (0, 0) and saddle points at (2, 2) and (2, -2) B. Relative minimum at (0, 0) and saddle points at (2, 2) and (2, -2) C. Relative minimum at (0, 0) and relative maxima at (2, 2) and (2, -2) D. Saddle point at (0, 0) and relative minima at (2, 2) and (2, -2)
Simplify the expression, if possible.3log3 7
A. 3 B. 21 C. 7 D. 10
Find the slope-intercept form of the equation of the line that passes through the given point and has the indicated slope m. Select correct answer for the line. ? P(0, -7), m = 8 ?
A. 
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B.
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D.
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E.
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