Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 9, ? = 225°
A. v = 9
B. v = 9
C. v = 9
D. v = 9
Answer: C
Mathematics
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A. 
B. 
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An object is thrown from the origin of a coordinate system with the x-axis along the ground and the y-axis vertical. Its path, or trajectory, is given by the equation 
. Find the object's maximum height.
?
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