Juliana Hatfield

Mathematics

16 January, 15:17

An airplane is loaded with cargo and ready to take o. Before it departs, an unknown number of 8 pound boxes, b, will be put on or taken o he plane, and a 215 pound crate will be put on. To keep the plane in balance, no more than 300 pounds may be taken o or put on the plane. Which inequality best describes this situation? A. j215 8bj 300 B. j8b + 215j 300 C. 300 8b 215 300 D. 300 215 8b 2. A machinist is directed to make a metal brace of length 7 in: 0:025 in: If ' is the length of the brace, this is the same as: A. j7 'j 0:025 B. j7 'j 0025 C. j' 0:025j 7 D. j' 0:025j 7 3. Which inequality has this graph for a solution?! 5 4 3 2 1 0 1 2 3 4 5 A. jx + 2j < 3 B. jx 2j < 3 C. jx 1j 2 4. Imagine the following scenario: The distance from your school, S, to your house, C, is no more than 28 miles. Which of the following is a correct model of the scenario? A. jS Cj 28 C. jS Cj 28 D. jS Cj = 28 5. What is the sum of the solutions to the equation 1 2 j2x + 6j + 2 =