Solve the problem.Suppose that f(x) = 3x. If f(x) = 
, what is x?
A. 4
B. -4
C. 3
D. -3
Answer: B
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Describe the given set of points with a single equation or with a pair of equations.The circle in which the plane through the point (10, -1, -2) perpendicular to the x-axis meets the sphere of radius 26 centered at the origin.
A. x2 + y2 + z2 = 676 and z = 10 B. x2 + y2 + z2 = 576 and y = 10 C. x2 + y 2 + z2 = 476 and y = 10 D. x2 + y2 + z2 = 676 and x = 10
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. Give the solution.
A. {2} B. (1, 2] C. [-4, 2) D. [1, 2)
Solve the problem.In a sale, the price of a computer is reduced from $1580 to $1285. Find the discount and the rate of discount. Round the discount rate to the nearest tenth of a percent if necessary.
A. $285; 22.2% B. $295; 23% C. $285; 18% D. $295; 18.7%
Provide an appropriate response.Fill in the blank with "always greater than," "sometimes greater than," "always less than," or "cannot be determined," whichever response is correct. When dividing a positive fraction by 
, the answer is 
the fraction.
A. always greater than B. always less than C. sometimes greater than D. cannot be determined