Solve the inequality. Graph the solution set and write it in interval notation.-
x < 2
A. [-6, ?)
B. (-6, ?)
C. (-?, -6]
D. (-?, -6)
Answer: B
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Solve the problem.The stiffness of a rectangular beam is proportional to its width times the cube of its depth. Find the dimensions of the stiffest beam than can be cut from a cylindrical log. (Round answers to the nearest tenth.)
A. w = 7.0 in.; d = 11.4 in. B. w = 5.0 in.; d = 11.4 in. C. w = 6.0 in.; d = 10.4 in. D. w = 7.0 in.; d = 9.4 in.
Determine whether the given quadratic function has a minimum value or maximum value. Then find the minimum or maximum value and determine where it occurs.f(x) = -3x2 - 3x
A. Minimum is - at x =
.
B. Maximum is - at x =
.
C. Maximum is at x = -
.
D. Minimum is at x = -
.
Answer the question.Which pair of values of x and y makes x - 4y equal 2?
A. x = 10 and y = 2 B. x = 14 and y = 4 C. x = 2 and y = 10 D. x = 4 and y = 14
Solve the equation. -
=
A. {34} B. {-23} C. {23} D. {46}