Simplify the complex number to its rectangular form.9j - 
A. 9 + 2j
B. 11j
C. -2 + 9j
D. 7j
Answer: D
Mathematics
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Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 
D. 
Mathematics
Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. x = 0.4 B. x = 6.88 C. x = 5.6 D. x = 31.5
Mathematics
Solve the problem.If a single fair die is rolled, find the probability of a 5 given that the number rolled is odd.
A. 
B. 
C. 
D. 
Mathematics
Tell whether the given rational expression is proper or improper.
A. proper B. improper
Mathematics