Simplify. Write your answers in the form of a+bi, where a and b are real numbers.
A. - 
- 
i
B. - 
+ 
i
C. - 
- 
i
D. 
+ 
i
Answer: A
Mathematics
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Perform the indicated operation. Assume that all variables are nonnegative.
+ 3
+ 3
A. 6x
B. 19x
C. 19x
D. 6x
Mathematics
Solve the inequality, then graph the solution.-12 < 4y ? 4 
A. [-3, 1)
B. (-3, 1)
C. [-3, 1]
D. (-3, 1]
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 
, ? < ? < 
Find sin(2?).
A. 
B. 
C. - 
D. - 
Mathematics
Find an equation for the hyperbola described. Graph the equation.Center at (0, 0); focus at (
, 0); vertex at (4, 0)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Mathematics