BaileySponge

=Bailey McBride=

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September 22, 2008 pg. 32 # 21-22

21. Simplify l-7 + 8l + l-9l l-7 + -8l + l-9l 1+9=10 so the answer is J

22. A

September 23, 2008 pg. 83 # 65-68

65. 4.78d + 0d= 4.78d 66. -21p-76p(squared)-9+p= -20p-76p(squared)-9 67. 3.3t(squared) + 8.7t-9.4t(squared) + 5t= -6.1t(squared)+13.7t 68. 1.5m-4.2m-12.5v+4.2m=1.5m-12.5v

September 24, 2008 pg. 85 # 1-3, 5-10

1.-1/3 + 2/9 -9/27 + 6/27= -54/27 2. -3 + -17= -20 3. l-5l + (-5) + 5 0+5= 5 5. 2a x (-3b) 2x4 x (-3x-5) 8x15= 120 6. -b - a --5 - 4 5-4=1 7. (2a(squared)/(4b) (2x16)/(-20) 32/-20= -1.6 8. ? 9. 8x-12 10. 49t

September 25, 2008 no class

September 26, 2008 pg. 91 # 1-4 1. yes 2. no 3. no 4. no

September 29, 2008 Summarize the Associative and Commutative Property and use examples Associative Property: A property that uses parenthesis and you can regroup and still get the same answer/parenthesis move but the answer does not change (8+2) + 6=8+ (2+6) Commutative Property: A property that you can or multiply #'s in any order and produces same answer 4x5=5x4

September 30, 2008 No because on the left side, the exponent is squaring the entire problem and on the right side the exponent is squaring the individual number
 * 1) 2- An equation is true if each side of the equation simplifies to the same value or expression. Is the equation (a + b)² = a² + b² true? Explain.

October 1, 2008 pg. 116# 15-18 & #1

1. 15/7 + -3/6= 69/42= 23/14 15. 14k2- (-2k2)= 16k 16. 4xy+9xy=13xy 17. 6t+2-4t= 2t+2 18. 9x-4+3x= 12x-4

October 2, 2008 no class

October 3, 2008 pg. 119#1-9 1. x= 19 2. x= 5.2 3. x= 14 4. x= 33 5. x= 32 6. x= 3 7. x= 1/5 8. x= -9 9. x= 15/4

October 6, 2008 pg. 122#40-43 40. c=56 41. k=7 42. p=-4 43. y=30

October 7,2008 October 8, 2008 October 9, 2008 no class October 10, 2008