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