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If a number is chosen at random from the set {-10, -5, 0, 5, 10}, what is the probability that it is a member of the solution set of both 3x - 2 < 10 and x + 2 > -8?
A.) 0 B.) 1/5 C.) 2/5 D.) 3/5 E.) 4/5 A 25-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on concrete 7 feet from the base of the building. If the top of the ladder slips down 4 feet, then the bottom of the ladder will slide out how many feet?
A.) 4 feet B.) 5 feet C.) 6 feet D.) 7 feet E.) 8 feet In the xy-plane, line l is perpendicular to the graph of the function f(x) = 5x - 2.
Line l could be the graph of which of the following functions? A.) g(x) = -5x B.) g(x) = (-1/5)x C.) g(x) = x - 2 D.) g(x) = (1/5)x E.) g(x) = 5x If x + y = a and x - y = b, then x =
A.) 1/2(a + b) B.) a + b C.) a - b D.) 1/2ab E.) 1/2(a - b) Which of the following is the equation of a straight line that has y-intercept 3 and is perpendicular to the line 4x - 2y = 6.
A.) 2y + 3x = - 3 B.) y + 3x = -2 C.) 2y - x = 6 D.) y - 2x = 4 E.) 2y + x = 6 |
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