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posted by  jo3 08 on 5/19/2008 9:46:26 AM  |  status: Live  

Can someone help me with my math homework please

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Simplify the expression.Write your answer using exponets.
1.(-7)9(-7)2      
2. (53)8
3.               122   *   124          this is a fraction.          * = multiplacation sighn
                                    
                        123
Use the table
 
 
Unit Meters Tera Giga Mega Kilo Hecto
Meters 1012 109 106 103 102
     
4. How many hectometers are there in 1 gigameter?
5.How many  kilometers are there in 1 terameter?
 
Simplify the expression.
6. x4 * x                                 * = multiplacation sighn
7. (9pq)2
8. (-5m6)2  *  m3
9. 1 * y11                          FRACTION
    y
10. (- 1 )5            That is -1 over t as a fraction to the fith power
          t
11.( a8 )4               That is a to the 8th power over 2b
       2b
         

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posted by KRam41 on 9/29/2008 1:08:30 AM  |  status: Live
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Response Details:
You really should try to separate questions in the future. You should really try to understand exponent rules:

Same base, add exponents:


Exponent to an exponent, multiply exponents:

Exponents distributive under multiplication


Using these rules (some of them explained again in words), the following answers are obtained:

Part I
1) same base multiplied, add exponents
2) exponent to an exponent, multiply exponents
3) same base multiplied (add exponents) and same base divided (subtract exponents)

Part II
4)
5)

Part III
6) same base multiplied, add exponents
7) exponents are distributive over multiplication (not addition)
8)combination of mentioned rules
9)
10)
11)
Info may be a bit off, but just a thought!
(",) KRam41

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