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Pre-Calculus Homework Solutions 11

# Pre-Calculus Homework Solutions 11 - Page 36 Practice Quiz...

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Page 36 Practice Quiz 2 1. M ¬ x 1 2 x 2 , y 1 2 y 2 ¬ 3 2 ( 4) , 1 2 3 ¬ 2 1 , 2 2 or 1 2 , 1 d ¬ ( x 2 x 1 ) 2 ( y 2 y 1 ) 2 AB ¬ ( 4 3) 2 [3 ( 1)] 2 AB ¬ ( 7) 2 4 2 49 16 AB ¬ 65 AB ¬ 8.1 2. M ¬ x 1 2 x 2 , y 1 2 y 2 ¬ 6 2 2 , 4 2 ( 8) ¬ 8 2 , 2 4 or (4, 2) d ¬ ( x 2 x 1 ) 2 ( y 2 y 1 ) 2 CD ¬ (2 6) 2 ( 8 4) 2 CD ¬ ( 4) 2 ( 12) 2 16 144 CD ¬ 160 CD ¬ 12.6 3. M ¬ x 1 2 x 2 , y 1 2 y 2 ¬ 10 2 ( 10) , 20 2 ( 20) ¬ (0, 0) d ¬ ( x 2 x 1 ) 2 ( y 2 y 1 ) 2 EF ¬ ( 10 10) 2 ( 20 20) 2 EF ¬ ( 20) 2 ( 40) 2 EF ¬ 400 1600 EF ¬ 2000 EF ¬ 44.7 4. m RXT ¬ m SXT m RXS 111 ¬ 3 a 4 2 a 5 111 ¬ 5 a 1 110 ¬ 5 a 22 ¬ a m RXS 2 a 5 2(22) 5 44 5 or 49 5. m QXS ¬ m QXR m RXS 4 a 1 ¬ a 10 91 4 a 1 ¬ a 101 4 a ¬ a 102 3 a ¬ 102 a ¬ 34 m QXS 4 a 1 4(34) 1 136 1 or 135 Angle Relationships Page 38 Geometry Activity: Angle Relationships 1. BCE DCA 2. DCB ACE 3. See students’ work. 4. ACD and ECB , DCB and ACE ; measures for each pair of vertical angles should be the same. 5. ACD and DCB , DCB and BCE , BCE and ECA , ECA and ACD ; measures for each linear pair should add to 180.
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