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
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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) (Show Source): You can put this solution on YOUR website!
Sales figures for 2002:
Start with the given number
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 to the number ?
The decimal needs to move 10 places to the right. So this is equivalent to multiplying by 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
This means that the number in scientific notation is
In other words,
----------------------------------------------------------------
Sales figures for 2006:
Start with the given number
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 to the number ?
The decimal needs to move 10 places to the right. So this is equivalent to multiplying by 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
This means that the number in scientific notation is
In other words,
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