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For a certain​ country, the national debt was 18.45 trillion. Use scientific notation to put a number like 18.45 trillion in perspective. Complete parts​ (a) through​ (c).
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a. Express 18.45 trillion in scientific notation.

= ?

b.

Four years of​ tuition, fees, and room and board at a public U.S. college cost approximately

​\$40,000. Express this number in scientific notation.

= ?

c. Use your answers from parts​ (a) and​ (b) to determine how many citizens could receive a free college education for

​\$18.45trillion.The answer to part​ (c) in scientific notation is

= ?
citizens.

​(Use the multiplication symbol in the math palette as needed. Round to two decimal places as​ needed.)

The answer to part​ (c) in decimal notation is

= ?

citizens.

Sep 17, 2021

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a.)  18.45 trillion  is     18 450 000 000 000.00      =  ( move decimal 13 places) =  1.845 x 1013

b.)  40 000   =   4.0 x 104

c.)  What do you think?.......

Sep 17, 2021