Determine the correct scientific notation form of the number. 0.000000084 a) 8.4 x 10−7 b) 8.4 x 10−8 c) 84 x 10−7 d) 84 x 10−9

0.000000084

we need to move the decimal 8 places to the right

8.4* 10^-8

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol