Mid-Chapter Quiz for Chapter 8 - Cengage

Mid- Chapter quiz for Chapter 843365.(d)(e) Students: 140; Nonstudents: 25; Major contributors: 35(f)(not possible)3195319546524657555515s1822xd27 30215x27xx8x18x118231951822x555y15yyx18x 1200499518z5100z5z5y115y1x18x1200140355x 5251x13520025z55s35d5y5 y12002001995z55z557z5y1y1x120033952200z5 92z55z5y17y12y2x120049950z100z4z555y15y into the first equation to obtainor will quiz for Chapter is not the is a solution. 26526 2016526 252 50248525s10d212s4d5?2s10, 4d5124fi25s1d212s22d5?2s1, solutionyx 4 1134 1 3 4 523 6x+9y=92x 3y=6434 Chapter 8 Systems of , 2d x55 2x510 2x26542x23s2d54 y52 , 24d, s1, 4dy54y524x51x523 05sx13dsx21d 05x212x23 52x252x12 52x252sx11d y52sx11d solutionyx423561 2 15364324xy =xy = 2 4(4, 4)(4, 4) solutionsyx 3 22345 3 4 5213y=1+2x x2y=x 1(2, 1)( 1, 2) , 2dyx1 15267 2 1 3 43214(4, 2)x=42x y= , 21dyx 256 4 3 2 123y=(5x 13)y=(1 2x)1133(2, 1) , 0dyx 2642 6 8 4648(8, 0)2x+7y=163x+2y= , 12d, s212, 5dyx 16 4 84816 8 1616x2+y

Mid-Chapter Quiz for Chapter 8 435 11. 190 13, 34 132 5 34 13 5 450 13 2 416 13 y 5 51 90 1322 32 x 5 2270 239 5 90 13 239x 52270 6 x 2 45x 1 288 5 18 6x 2 9s5x 2 32d 5 18 6x 2 9y 5 18 y 5 5x 2 32 5 x 2 y 5 32 ⇒ 2y 525x 1 32 12. s5, 10d 5 5 5 20 2 15 x 5 2s10d 2 15 y 5 10 1.1 y 5 11 0.4 y 2 3 1 0.7y 5 8

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