Simplify the mathematical expressions to determine the product or quotient in scientific notation Round so the first factor goes to the tenths place. 3.3x103

3.7

2.1x10-3

(8.6x107).(9.1x1073)

(6.9x105) (4.8x10–3)

(3.7 X 102). (4.6 x 10-3)

(1.4 x 10-6). (5.7 x 108)

(3.1 x 105)-(5.3 x 10-9)

(7.3 X 102). (6.1 x 10-7)

a) (This expression is written in scientific notation), b) , c) (This expression is written in scientific notation), d) , e) , f) , g) , h) , i)

Step-by-step explanation:

Each expression is checked and analyzed hereafter:

a) (This expression is written in scientific notation).

b)

c) (This expression is written in scientific notation).

d)

e)

f)

g)

h)

i)

it is b)

hope this : )

step-by-step explanation: