How do you write #865*10^-7# in standard notation?

1 Answer
Jan 30, 2018

Answer:

British standard notation: #8.65xx10^-5#

Standard notation: #0.0000865#

Explanation:

If you mean scientific notation, which is standard form in Britain, the number would be:

#8.65xx10^-5#.

The decimal was moved two places to the left, so the exponent is increased by #2#, such that #2+(-7)=-5#.

If you mean standard form in which the number is expanded so that there is no exponent, the number would be:

#0.0000865#

The exponent #-7# means to expand the number by moving the decimal to the left #7# places.