Which number is greatest?




In the scientific notation we have two possible cases:
1) If the exponent is negative, the decimals move to the left
2) If the exponent is positive, the decimals are turned to the right.
We have then the following numbers:
[tex] 2.89 * 10 ^ {-8} = 0.0000000289
1.997 * 10 ^ 2 = 199.7
8.9 * 10 ^ {-6} = 0.0000089
5 * 10 ^ {-6} = 0.000005
[/tex]
Answer:
Therefore, the largest number is:
[tex] 1.997 * 10 ^ 2 = 199.7 [/tex]