Katie+Serafen

Assignments:
 * 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.

No it is not true. For the first one to be right, you would add a and b together and then square it. They went ahead and squared a and b when they were not together and you can not do that.

Sponge:


 * 1: September 18, 2008: Integers are whole numbers and their opposites. Whole numbers cannot be negative. Integers can be negative, but whole numbers cannot be negative.


 * 2: September 22, 2008:              number 21= [1]+[9]=10 G        number 22= A

65. 4.78d 66: -20p -76p2 -9 67: -6.1t2 + 13.7t 68: 1.5m - 12.5v
 * 3: September 23, 2008

NO CLASS
 * 4:September 24, 2008

Page 85: 1. 1/9                                               X-1/9 2. -20 3. 5 5. 120 6. 1 7. -1.6 8. A=-5 +t             after temperature=A       increase temperature=t -5+13=A               8 degrees fahrenheit=A 9. 8x-12 10. 49t
 * 5:September 25, 2008

Page 91 (1-4)
 * 6: September 26, 2008

1. yes 2. no 3. no 4. no

The associative property uses parenthesis to group equations and move them around. 3 (5+6)=5 (6+3) The commutative property just rearranges the numbers and the order doesn't matter. 5+7+8=8+5+7
 * 7: September 29, 2008

ASSOCIATIVE-The movement of parenthesis to regroup numbers in addition or multiplication problems to produce the SAME answer. COMMUTATIVE-To change the order of the numbers in an addition or multiplication expressions to produce the same answer.


 * 8: September 30, 2008: NO SPONGE-TEST


 * 9: October 1, 2008: NO CLASS


 * 10: October 2, 2008:  page 116 (15-18 and 1 extra problem)

15. 16k2 16. 13xy 17. 2t +2 18. 12x -4 extra problem: 23/14

Page 119 (1-9 checkpoint)
 * 11: October 3, 2008

1. x=19 2.5.2=x 3. x=14 4. 33=x 5. x=32 6. 3=x 7. x=.2    X 1/5 8. x=-9 9. x=3 3/4

Page 122 (40-43)
 * 12: October 6, 2008

40. c=56 41. k=7 42. -4=p 43.y=30