Solve the equation.
(7 - x) = x
A. -4
B. 
C. 4
D. 7
Answer: C
Mathematics
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Solve the problem.To solve the rational inequality 
? 2, you can first write the inequality with 0 on one side and the other side expressed as a single fraction. What value or values of x make the denominator of that fraction equal to 0?
A. {-3, -2} B. {-3} C. {-2} D. {2}
Mathematics
Use multiplication to check the answer. If an answer is incorrect, find the correct answer.
A. Correct B. Incorrect; should be 156 C. Incorrect; should be 155 R72 D. Incorrect; should be 155 R76
Mathematics
Graph the solution set of the system of inequalities or indicate that the system has no solution.x2 + y2 ? 813x + 4y ? 12
A. 
B. 
C. 
D. 
Mathematics
Find the derivative.
A. 
B. 
C. 
cos(x2 - 7)
D. 
Mathematics