Write the vector v in the form ai + bj, given its magnitude 
and the angle ? it makes with the positive x-axis.
= 7, ? = 30°
A. v = 
i + 
j
B. v = - 
i + 
j
C. v = 
i + 
j
D. v = 
i + 
j
Answer: D
Mathematics
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+ 
= 1
A. 
B. 
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The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(0, 1)
A. constant B. increasing C. decreasing
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Perform the indicated operation and write the answer in simplest form.- 
? - 
A. 
B. - 
C. 
D. - 
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