Change 0.09×1.213.3×0.00025 in standard form?

After fixing whatever 1.213.3 is supposed to be, I suggest

getting out your calculator and just go wild pushing those buttons

If your question mean:

0.09 × 1213.3 × 0.00025

then

0.09 ∙ 1213.3 ∙ 0.00025 = 0.02729925

To change the expression 0.09×1.213.3×0.00025 into standard form, we need to simplify the expression first.

0.09 × 1.2133 × 0.00025 = 0.0000024786

Next, we need to express this number in standard form. In standard form, a number is written as a number between 1 and 10 multiplied by a power of 10.

To do this, we move the decimal point to the right until we have a number between 1 and 10. Count the number of places you moved the decimal point to the right. In this case, we moved it six places to the right.

So, the standard form of 0.09 × 1.2133 × 0.00025 is 2.4786 × 10^(-6).