MA129 Study Guide - Final Guide: Liquid Oxygen

• School: WLU
• Department: Mathematics
• Course: MA129
• Professor: Shane Bauman

Document Summary

Check that your test paper has no missing, blank, or illegible pages. Note that test questions appear on both sides of the paper. Insu cient justi(cid:133)cation will result in a loss of marks. 3 35: [4 marks] let a =(cid:20) 2 (cid:0)4. Determine each of the following: (a) 3a (cid:0) b (b) bc. 1: [4 marks] simplify each of the following expressions. (a) (cid:0)2x3y(cid:0)2(cid:1)3 (xy4)(cid:0)2 (b) x2 (cid:0) 4 x2 + 3x (cid:0) 10 (cid:1) 6x2 (cid:0) 3x x2 + 7x + 10: [5 marks] solve the following inequality for x. 2: [5 marks] solve the system of linear equations if it is consistent, or prove that there is no solution if the system is inconsistent: x (cid:0) 2y + z. = (cid:0)1 (cid:0)10x + 4y + 8z = 4: [3 marks] a business-copier repair company charges a (cid:133)xed amount f , plus an hourly rate r for a service call.