At the end of fiscal year 2004, the federal debt of Country C is $278,560,125,000. What is the closest estimation of this amount? Express your answer in the form of a single digit times an integer power of 10. (1 point);
3 * 10 ^ - 11;
2.79 * 10 ^ 11
; 3 * 10 ^ 11;
2 * 10 ^ 11 9
The closest estimation of the federal debt of Country C at the end of fiscal year 2004 is 2.79 * 10^11.
The closest estimation of the federal debt of Country C at the end of fiscal year 2004 is 2.79 * 10^11.
To find the closest estimation of the federal debt of Country C at the end of fiscal year 2004, we need to express it in scientific notation. In scientific notation, a number is written as a single digit (between 1 and 9.99) multiplied by a power of 10.
The given debt amount is $278,560,125,000. We need to move the decimal point in this number to have only one non-zero digit to the left of the decimal point.
By moving the decimal point 11 places to the left, we can express the debt amount as 2.78560125. Now, the closest single digit value is 2, and we multiply it by 10 raised to the power of 11 because we moved the decimal point 11 places to the left.
Therefore, the closest estimation of the federal debt of Country C at the end of fiscal year 2004 is 2 * 10^11.