What is the difference of scientific notation. 0.00067 - 2.3 x 10^-5

a. 6.47 x 10⁻⁴

b. 6.47 x 10⁻⁵

c. 4.4 x 10⁻⁵

d. 4.4 x 10¹

For this case we must find the difference of the following expressions:

For the second expression we must run the decimal 5 times to the left, because the exponent is negative, that is:

We subtract:

Represented in scientific notation we have:

Option A

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation: