Marc's Journal Entry

Hey there you guys 8D! Were supposed to make a post for the best journal entry for the past two units that we've done...I chose the entry for the test of both chapter 7 and 5, which made it so much easier.

Entry: March 19,2010 ******************(Start)

Today we basically corrected our tests. There are a few questions people had trouble with, but I'm not completley sure if they were the ones.
(^2=Squared)

19. Write a simplified expression for the area of the following figure. What is the area of this figure?
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20. Apply the distributive property to simplify: 2x(x-4)-3x(x-4)

=2x^2-8x-3x^2+12x (combine like-terms)
=2x^2-3x^2-8x+12x
=x^2+4x
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21. A pool table is twice as long as it is wide. If the area of the pool table is 2.88m^2, what are the dimensions of the table.

We are also to try and play a game called "Save the Zogs", in http://www.mathplayground.com/

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