Write the complex number in rectangular form.9(cos 180° + i sin 180°)
A. -9
B. 9i
C. -9i
D. 9
Answer: A
Mathematics
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Plot the complex number.-5 - i
A. 
B. 
C. 
D. 
Mathematics
Evaluate, if possible
A. 
B. 
C. 3
D. 
Mathematics
Solve the equation.4x2 - 32x + 60 = 0
A. {3, 5} B. {0, 3, 5} C. {4, 3, 5} D. {-3, -5}
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
? 
A. 
B. 
C. 
D. 
Mathematics