Find the reference angle for ?. ? = 215°
A. -35°
B. 125°
C. 35°
D. -55°
Answer: C
Mathematics
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Solve the equation 
for ?y. Round your answers to two decimal places, if necessary.
?
A. 
or 
B. 
or 
C. 
or 
D. None of the above.
Mathematics
Solve the problem.A person has a zero balance on a credit card. The person uses the credit card to buy 2 DVDs at a cost of $11.99 per DVD. What is the new balance?
A. -23.98 dollars B. -13.99 dollars C. 23.98 dollars D. -11.99 dollars
Mathematics
Perform the operation and write the result in the standard form.(6 - 7i)(7 - 4i)
A. 28i2 - 73i + 42 B. 14 - 73i C. 14 + 73i D. 70 - 25i
Mathematics
Add or subtract. Simplify the answer.
- 
A. 
B. 
C. 
D. 
Mathematics