21 Write in scientific notation

Asked by AnneS2 on 20 Jun 05:05

Last updated by anonymous on 22 Jun 17:03

Answered by CherieS on 22 Jun 17:03

21. given that the decimal is after the 1

move the decimal to the right so it is after the first number

2.1

2.1X10^1 (to the 1 indicated by the number of spaces the decimal moves)