Oct232009

POSTED AT 03:09 PM

Today we used three of the Rule of Exponents, along with the Distributive Property to simplify expressions.  Remember that when you:
 
a) multiply two powers having the same base, you add the exponents.
b) find a power of a power, you multiply the exponents.
c) find a power of a product, you find the power of each factor and then multiply.
 

Problem of The Day:
 
TV sets are manufactured so that their length-to-width ratio is a constant.  Their sizes represent the length of  the diagonal of the screen.  By what percent is the viewing area increased if you buy a 42-inch TV rather than a 37-inch TV?  Express your answer to the nearest tenth.  
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