how do you write 0.000006643 in scientific notation?

Answer 1

6.643 x 10^-6 (ten raised to the negative 6th power)

You count how many decimal places you have to move to only include the significan figures (6643). You have to move 6 places to the right to make it 6.643, so you get 10^-6. (Negative b/c you moved to the right).

Answer 2

Scientific notation looks complex, but it really isnt. First of all the format of standard from is << a number from 1-10 x10^something>> Remember 10 to the power of x is just a one with x number of zeros after it.

First write the number so that you get a number between 1 & 10, so 6.643.

Now look: to get the original 0.000... number, how many decimal points do you need to go back from 6.643? Yes, its 6 back, or -6. This is the power.

So its 6.643 x 10^-6

Note: negative powers of ten means that the notation number gets small when written a real "full" number. A positive power means that its bigger.

Sorry, I know this isnt very clear, hope that helps!

Answer 3

In scientific notation, you always write it as one digit followed by a decimal point followed by other digits. To do this, you have to multiply it by 10 to the power of something. In this case, you had to shift the decimal six places to the right, so it is 10^-6.

If it was shifted 3 places to the left, it would be 10^3.

Answer 4

ANSWER: 6.643 * 10^-6 (10 is raised to the negative 6th power)

Answer 5

Is this math or chemistry?
anyway, the answer is 6.643*10^-6

Answer 6

6.643 x 10^-6

Answer 7

6.643 x 10^-6

Answer 8

***********9
6643. X 10

* used to take up space dont write it like that

Answer 9

6643E-9