SOLUTION: 3. In 2002, Home Depot’s sales amounted to $58,200,000,000. In 2006, its sales were $90,800,000,000. a. Write Home Depot’s 2002 sales and 2006 sales in scientif

Algebra ->  Graphs -> SOLUTION: 3. In 2002, Home Depot’s sales amounted to $58,200,000,000. In 2006, its sales were $90,800,000,000. a. Write Home Depot’s 2002 sales and 2006 sales in scientif      Log On


   

Question 121753: 3. In 2002, Home Depot’s sales amounted to $58,200,000,000. In 2006, its sales were $90,800,000,000.

a. Write Home Depot’s 2002 sales and 2006 sales in scientific notation.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!

Sales figures for 2002:


58200000000 Start with the given number



5.82 Place a decimal between the first digit 5 and the second digit 8.

Now how many spots to the right must the decimal move to go from the number 5.82 to the number 58200000000?

The decimal needs to move 10 places to the right. So this is equivalent to multiplying 5.82 by 10%5E10 to move the decimal 10 places to the right. Notice how the exponent 10 corresponds to the number of spots the decimal needs to move.


So putting all of this information together, we get

5.82%2A10%5E10


This means that the number 58200000000 in scientific notation is 5.82%2A10%5E10


In other words, 58200000000=5.82%2A10%5E10



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Sales figures for 2006:





90800000000 Start with the given number



9.08 Place a decimal between the first digit 9 and the second digit 0.

Now how many spots to the right must the decimal move to go from the number 9.08 to the number 90800000000?

The decimal needs to move 10 places to the right. So this is equivalent to multiplying 9.08 by 10%5E10 to move the decimal 10 places to the right. Notice how the exponent 10 corresponds to the number of spots the decimal needs to move.


So putting all of this information together, we get

9.08%2A10%5E10


This means that the number 90800000000 in scientific notation is 9.0%2A10%5E10


In other words, 90800000000=9.08%2A10%5E10