Indicate whether the statement is true always, sometimes, or never.To find the quotient 
, multiply numerator and denominator by 5 + 3i.
A. Always
B. Sometimes
C. Never
Answer: A
Mathematics
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Find zw or 
as specified. Leave your answer in polar form.z = 10(cos 30° + i sin 30°)w = 5(cos 10° + i sin 10°)Find 
.
A. 5(cos 3° + i sin 3°) B. 5(cos 20° + i sin 20°) C. 2(cos 3° + i sin 3°) D. 2(cos 20° + i sin 20°)
Mathematics
Solve the problem.The following shows a summary of Marco's bank account activity over the past month. Add the values in the Amount column to find his current balance. 
A. $1734 B. $744 C. $984 D. $1974
Mathematics
Solve the problem. Round to the nearest unit.569 is 11.9% of what?
A. 478,200 B. 4,782 C. 1 D. 47,820
Mathematics
Factor completely.169s2 - 64t4
A. (169s + t2)(s - 64t2) B. (13s - 8t2)2 C. (13s + 8t2)(13s - 8t2) D. (13s + 8t2)2
Mathematics