Write the complex number in rectangular form using exact values if possible. Otherwise, round to one decimal place.5(cos 120° + i sin 120°)
A. 
+ 
i
B. - 
+ 
i
C. - 
+ 
i
D. 
+ 
i
Answer: B
Mathematics
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Solve the problem.Consider an election in which the votes were cast as follows. How many of Grafton's votes would Howard need to win the runoff election?
A. 124 B. 104 C. 129 D. Howard cannot win the runoff election.
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Determine whether the sequence is arithmetic.2, 6, 10, 14, 18, . . .
A. Arithmetic B. Not arithmetic
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Find a rectangular equation for the plane curve defined by the parametric equations.x = 5 tan t, y = 4 cot t
A. y = 
B. y = 
sin x
C. y = 
cos x
D. y = 
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Find the average rate of change for the function over the given interval.y = 5x + 7 between x = -1 and x = 0
A. 
B. - 
C. 5
D. -28
Mathematics