How is 0.00069 written in scientific notation?
A)69 x 10^–5
B)6.9 x 10^4
C)0.69 x 10^–3
D)6.9 x 10^–4
My Choice is A
I was thinking on it and I am going to change my answer to D
Yep, Its D, 6.9 x 10^-4. (:
it's D for sure
To convert a number to scientific notation, you need to move the decimal point until there is only one non-zero digit to the left of the decimal point.
In the number 0.00069, the first non-zero digit is 6. By moving the decimal point 4 places to the right, we get the number 6.9.
Since we moved the decimal point to the right, the exponent should be negative. The number 0.00069 can be written as 6.9 x 10^–4.
Therefore, the correct choice is D) 6.9 x 10^–4.