use scientific notation to find out which of these is greater 645,987,034 645,897,430, or 546,786,340 write u answer in scientific notation expressed to the exact decimal place
To compare the numbers in scientific notation, we represent each number in the form a x 10^b, where a is the coefficient and b is the exponent.
645,987,034 = 6.45987034 x 10^8
645,897,430 = 6.4589743 x 10^8
546,786,340 = 5.4678634 x 10^8
Since the coefficients are in the same range, we can compare the numbers based on the coefficients:
6.45987034 x 10^8 > 6.4589743 x 10^8 > 5.4678634 x 10^8
Therefore, the greatest number is 645,987,034 when written in scientific notation.