* 1.2 × 10 -4

* .12 × 10 -3

* 1.2 × 10 4

* 12 × 10 -5

Okay, so if you're trying to figure something like this out quickly, look at the exponent number, and see if it's positive or negative. If it's positive, move the decimal in your number to the right. If it's negative, move the decimal in your number to the left. Easy trick my science teacher taught me :)

In this case, it's going to be .12 x 10 -3 because if you do that decimal trick, you move the decimal three places. .00012

In this case, it's going to be .12 x 10 -3 because if you do that decimal trick, you move the decimal three places. .00012

B. 1.2 x

Step-by-step explanation:

Scientific notation is a way of writing very large or very small numbers. A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10. For example, 650,000,000 can be written in scientific notation as 6.5 ✕ 10^8. Or, in this case it's the opposite since we have a negative number. Since it's a decimal it's multiplied by 10 still but the exponent is negative. All we need to do to find what the exponent would be in this case is to count the number of zeros before the "12." There are 4 zeros before the 12. So your exponent would be -4. Now all we need to do is write out "equation" per say.

1.2 x 10^-4

Hope this helps and have a nice day!

1.2 x 10^-4

Scientific notation is basically a number (that must be between 1 and 10) multiplied by a power of 10. Notice to get a number between 0 and 10, you must move the decimal point 4 places to the right to obtain 1.4; therefore, your power of 10 is 10^-4.

Scientific notation is basically a number (that must be between 1 and 10) multiplied by a power of 10. Notice to get a number between 0 and 10, you must move the decimal point 4 places to the right to obtain 1.4; therefore, your power of 10 is 10^-4.

Step-by-step explanation:

the following expressions is 0.00012 , write it in scientific notation

In scientific notation we put the decimal point after the first number

to get the decimal point after 1, we move 4 units to the right

To move 4 units to the right , we put

Scientific notation is

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