The magnitudes 
, 
, and the angle ? between the vectors v and w are given. Round the requested magnitude or angle to the nearest tenth.
= 8, 
= 13, ? = 64°
Find the angle between v + w and w
A. 40.5°
B. 37.2°
C. 23.5°
D. 79.1°
Answer: C
Mathematics
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Graph the function. Specify the intervals over which the function is increasing and the intervals where it is decreasing.y = 6
A. Increasing -? < x < ?
B. Decreasing 0 ? x < ?
C. Decreasing 0 ? x < ?
D. Increasing 0 ? x < ?
Mathematics
Find the quadratic approximation of f at x = 0.f(x) = 
A. Q(x) = 6 + 
B. Q(x) = 6 - 
C. Q(x) = 6 - 
D. Q(x) = 6 + 
Mathematics
Determine if the given ordered triple is a solution of the system.(4, 3, -3)2x + 4y + z = 175x - 5y - z = 85x + y + 5z = 8
A. solution B. not a solution
Mathematics
Solve the equation.
= 0
A. 
B. 
C. {5, 2}
D. 
Mathematics