In government class, Nadia computed the amount of debt of the federal government after a third of it was paid in 1995. The calculator displayed the number 3.28E12. What is this number in scientific notation?

Question

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Answer 1

The number displayed on the calculator, 3.28E12, is already in scientific notation. It can be interpreted as:

\[ 3.28 \times 10^{12} \]

This means 3.28 multiplied by 10 raised to the 12th power. In standard decimal form, this number is:

3,280,000,000,000.

So, the number 3.28E12 in scientific notation is \( 3.28 \times 10^{12} \).

Answer 2

In chemistry class, Carlos calculated the number of molecules in 100 moles. The calculator displayed the number 6.02E25. What is the number of molecules in 100 moles in scientific notation?

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Answer 3

The number displayed on the calculator, 6.02E25, is already in scientific notation. It can be written as:

\[ 6.02 \times 10^{25} \]

This means 6.02 multiplied by 10 raised to the 25th power.

Thus, the number of molecules in 100 moles, expressed in scientific notation, is \( 6.02 \times 10^{25} \).

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