Solve for x in the proportion. If possible, reduce the known fraction first.
= 
A. x = 
B. x = 
C. x = 
D. x = 
Answer: D
Mathematics
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Perform the indicated operation. Write the answer in the form a + bi.
(cos 16° + i sin 16°) ? 
(cos 14° + i sin 14°)
A. 
+ 
i
B. 
- 
i
C. 
+ 
i
D. 
+ 
i
Mathematics
Find the product.(3y2 - 10)(3y2 + 10)
A. 9y4 - 60y2 + 60 B. 9y2 + 100 C. 3y2 - 100 D. 9y4 - 100
Mathematics
Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
Mathematics
Determine which value(s), if any, must be excluded from the domain of the variable in the expression.
A. x = 6, x = 8 B. x = 2, x = -2 C. x = 0 D. x = -6, x = -8
Mathematics