Rounding to 3 significant figures and scientific notation

Question

Hi, how do I round 786936.25 then writing the answer in scientific notation?

Answer 1

The exact value of what you submitted, in scientific notation, is 7.8692625×10⁵

 

If you wish to round it, you must state to how many significant digits the rounding should be.  For example, rounded to 3 signif. digits, it's 7.87×10⁵