AnswersNC-Math 2 Fall 2nd 9 WeeksRadical Equations and Extraneous Roots

Performance Task: Roller Coaster Design Answers

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Which equation is equivalent to ?

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A
x + 11 = 225
B
x + 121 = 225
C
StartRoot x EndRoot = 15 + 11
Option C
D
StartRoot x EndRoot = 15 minus 11
Option D
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The formula that relates the length of a ladder, L, that leans against a wall with distance d from the base of the wall and the height h that the ladder reaches up the wall is . What height on the wall will a 15-foot ladder reach if it is placed 3.5 feet from the base of a wall?

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A
11.5 feet
B
13.1 feet
C
14.6 feet
D
15.4 feet

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