3.B; let xrepresent the length of the shadow. Usethe Pythagorean Theorem to solve for xto thenearest foot.122¬92x2144¬81x263¬x28¬xThe shadow is about 8 feet long.4.D5.D; the slope of the line in Kris’s graph can befound using points (0, 3) and (4, 11).((yx22yx11))14103or 2The slope of the line in Mitzi’s graph is the sameas the slope of the line in Kris’s graph, or 2. Sothe line in Mitzi’s graph has equation y2xb,or 2xyb. The only answer of this form is2xy1, sob1 or b1.6.B;mEFG¬mFDEmFED9x7¬5x5x9x7¬10x7¬xmEFG9(7)7707.C;ABDCBD, so CBDis a flip of ABDover the x-axis. Corresponding points have thesame x-coordinate and opposite y-coordinates.8.A; if we know BCCEthen ACB DCEbySAS.9.3s2(2s37)6s521s210.Brian’s second statement was the converse of hisoriginal statement.11. Explore:Creston (C) and Dixville (D) areendpoints of the base of an isosceles triangleformed by Creston, Dixville, and Milford. We are
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