Multiply the conjugates. Assume all variables have nonnegative values.(
+ y)(
- y)
A. x - 2y
B. 13x - y2
C. 14x
D. x + 2y
Answer: B
Mathematics
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Solve the problem.The physics department of a college has 7 male professors, 10 female professors, 14 male teaching assistants, and 9 female teaching assistants. If a person is selected at random from the group, find the probability that the selected person is a teaching assistant or a female.
A. 
B. 
C. 
D. 
Mathematics
Graph the function.y = 
+ 7
A. 
B. 
C. 
D. 
Mathematics
Use the information given about the angle ? to find the exact value of the indicated trigonometric function.tan ? = 
, ? < ? < 
Find sin 
.
A. 
B. - 
C. 
D. - 
Mathematics
Use the figure below. Determine whether the given statement is true or false. 
C + D + G + I + J = 0
A. True B. False
Mathematics