Question

There are 812,000 gallons of water in an olympic training center's pool. Express this number in scientific notation.

A) .812 x 106
B) 8.12 x 105
C) 81.2 x 104
D) 812 x 103

Answer 1

.12×10^5

... i got this by taking the first number 8 and then counting the places behind the 8 which would be 5 so than you move the decimal place by 5 so you get 8.12 then you show theirs 5 places behind the 8 by adding the 10^5 so you get 8.12×105