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Research paper thumbnail of Chapter 2. Technical Mathematics Signed Numbers

2-29. (a)-6 0 C; (b)-17 0 C; (c) 36 0 C 2-30. L = 2 mm[(-30 0 C) – (-5 0 C)] = 2 mm(-25) =-50 mm... more 2-29. (a)-6 0 C; (b)-17 0 C; (c) 36 0 C 2-30. L = 2 mm[(-30 0 C) – (-5 0 C)] = 2 mm(-25) =-50 mm; Decrease in length. Algebra Review 2-31. x = (2) + (-3) + (-2) =-3; x =-3 2-32. x = (2) – (-3) – (-2) = +7; x = +7 2-33. x = (-3) + (-2)-(+2) =-7; x =-7 2-34. x =-3[(2) – (-2)] =-3(2 + 2) =-12; x =-12

Research paper thumbnail of Chapter 2. Technical Mathematics Signed Numbers

2-29. (a)-6 0 C; (b)-17 0 C; (c) 36 0 C 2-30. L = 2 mm[(-30 0 C) – (-5 0 C)] = 2 mm(-25) =-50 mm... more 2-29. (a)-6 0 C; (b)-17 0 C; (c) 36 0 C 2-30. L = 2 mm[(-30 0 C) – (-5 0 C)] = 2 mm(-25) =-50 mm; Decrease in length. Algebra Review 2-31. x = (2) + (-3) + (-2) =-3; x =-3 2-32. x = (2) – (-3) – (-2) = +7; x = +7 2-33. x = (-3) + (-2)-(+2) =-7; x =-7 2-34. x =-3[(2) – (-2)] =-3(2 + 2) =-12; x =-12

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