Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 7, ? = 60°
A. v = 7
B. v = 7
C. v = 7
D. v = 7
Answer: C
Mathematics
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Perform the indicated operation. Simplify if possible.
+ 7
A. 
B. 
C. 
D. 
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Find the slope of the line in the figure or state that the slope is undefined.
A. m = -3
B. m = 3
C. m = - 
D. m = 
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Write as a percent. Round to the nearest hundredth of a percent when necessary.
A. 5.82 % B. 17.18 % C. 1.72 % D. 58.2 %
Mathematics
Find the coordinates of the vertex for the horizontal parabola defined by the given equation.x = -(y - 3)2 + 9
A. (9, 3) B. (9, -3) C. (-3, 9) D. (3, 9)
Mathematics