Question 1180428
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The answer 5.294*10^(-23) from the other tutor has 4 significant digits, not 3.<br>
The number of decimal places is not the same thing as the number of significant figures.<br>
In particular, in scientific notation, there is always 1 significant figure to the left of the decimal point; so a number in scientific notation with n significant figures will have (n-1) digits after the decimal point.<br>
ANSWER: (1/2)^74 written in scientific notation with 3 significant figures is 5.29*10^(-23)<br>