문제 101
In Exercises 101–106, solve each equation.
문제 103
In Exercises 101–106, solve each equation.
문제 105
In Exercises 101–106, solve each equation.
문제 107
If 5 times a number is decreased by 4, the principal square root of this difference is 2 less than the number. Find the number(s).
문제 108
If a number is decreased by 3, the principal square root of this difference is 5 less than the number. Find the number(s).
문제 140
In Exercises 137–140, determine whether each statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. The equation |x| = - 6 is equivalent to x = 6 or x = - 6.
문제 143
Solve for x:
문제 1
In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. (1, 6]
문제 3
In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. [- 5, 2)
문제 5
In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. [- 3, 1]
문제 7
In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. (2, ∞)
문제 9
In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. [- 3, ∞)
문제 11
In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. (- ∞, 3)
문제 13
In Exercises 1–14, express each interval in set-builder notation and graph the interval on a number line. (- ∞, 5.5)
문제 15
In Exercises 15–26, use graphs to find each set. (- 3, 0) ∩ [- 1, 2]
문제 17
In Exercises 15–26, use graphs to find each set. (- 3, 0) ⋃ [- 1, 2]
문제 19
In Exercises 15–26, use graphs to find each set. (- ∞, 5) ∩ [1, 8)
문제 21
In Exercises 15–26, use graphs to find each set. (- ∞, 5) ⋃ [1, 8)
문제 23
In Exercises 15–26, use graphs to find each set. [3, ∞) ∩ (6, ∞)
문제 25
In Exercises 15–26, use graphs to find each set. [3, ∞) ⋃ (6, ∞)
문제 27
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. 5x + 11 < 26
문제 29
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. 3x - 7 ≥ 13
문제 31
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. -9x ≥ 36
문제 35
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. 4(x + 1) + 2 ≥ 3x + 6
문제 37
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. 2x - 11 < - 3(x + 2)
문제 39
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. 1 - (x + 3) ≥ 4 - 2x
문제 41
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. x/4 - 3/2 ≤ x/2 + 1
문제 43
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. 1 - x/2 > 4
문제 45
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. (x - 4)/6 ≥ (x - 2)/9 + 5/18
문제 47
In all exercises, other than exercises with no solution, use interval notation to express solution sets and graph each solution set on a number line. In Exercises 27–50, solve each linear inequality. 4(3x - 2) - 3x < 3(1 + 3x) - 7
Ch. 1 - Equations and Inequalities
