Final answer:
To express 775 in scientific notation, you write it as 7.75 x 10^2.
Explanation:
To write 775 in scientific notation, you need to express it as a number between 1 and 10 multiplied by a power of 10. In this case, 775 can be written as 7.75 x 102. This is because you move the decimal point two places to the left to make 7.75, which is between 1 and 10.
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