Solve the inequality and express the solution set in interval notation. Graph the solution set on the real number line.3x > 2x - 4
A. (-?, -4)
B. [4, ?)
C. (-4, ?)
D. (-?, 4]
Answer: C
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Perform the indicated operations.4 ? (-26) + 22 ? (-21)
A. -1722 B. -566 C. -336 D. 1722
Subtract.585 - 321
A. 248 B. 264 C. 274 D. 364
Use a graphing utility to graph the function over the indicated interval and approximate any local maxima and local minima. If necessary, round answers to two decimal places.f(x) = 2 + 8x - x2; (-5, 5)
A. local maximum at (-4, 50) B. local minimum at (-4, 18) C. local minimum at (4, 50) D. local maximum at (4, 18)
Solve the problem.A rectangular box with volume 318 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base. Express the cost the box as a function of x.
A. C(x) = 3x2 + 
B. C(x) = 4x + 
C. C(x) = 3x2 + 
D. C(x) = 2x2 + 