Q. How do you write 1,990 in scientific notation?_____×10_____
Find Coefficient: What will be the coefficient when 1,990 is written in scientific notation?We need to move the decimal to the left until the number is greater than or equal to 1 and less than 10.Coefficient: 1.99
Sign of Exponent: Would 1,990 have a positive or negative exponent when written in scientific notation?1,990 is a number greater than 10. It will be represented by a positive exponent.
Calculate Exponent: What is the exponent when 1,990 is written in scientific notation?We moved the decimal to the left 3 times to make the coefficient 1.99.1,990=1.99×103Exponent: 3
Write in Scientific Notation: Fill in the values to write 1,990 in scientific notation.Substitute 1.99 for the coefficient and 3 for the exponent in the expression a×10b.Scientific notation: 1.99×103
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