Write -621,000 in scientific notion

-6.21 x 10^5

Step-by-step explanation:

The negative only comes when the numbers are in the decimal to right such as 0.1 when its on the left side it just mean positive power such as 6.0= a positive, negative power = 0.6 count how many numbers there are (6) then get the last number as the whole number and the rest are behind (-6.21) count all the numbers besides the last number (6) now that is your power so you get -6.21 x 10^5

center= (-2,0)

radius= sqrt2/2

step-by-step explanation:

c.35

step-by-step explanation:

8+13=21

21+8=29

29+6=35