Simplify the expression.
A. x2 + xy + y2
B. x - y
C. x2 - xy + y2
D. x2 + y2
Answer: C
Mathematics
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Which of the following integers fulfill the following conditions: For n = an integer, n < –2 or
n 
1?
?
A.
?n = –3, n = 1
B.
?n = –1, n = 1
C.
?n = –4, n 
1
D.
n?–2, n = 0
E.
?–2 < n< 1
Mathematics
Provide an appropriate response.Determine whether the function 
has a maximum, a minimum, or neither at the origin.
A. Maximum B. Minimum C. Neither
Mathematics
Graph the inequality.x2 + y2 > 49
A. 
B. 
C. 
D. 
Mathematics
Decide whether the expression has been simplified correctly.(4b)9 = 49b9
A. No B. Yes
Mathematics