How do you write 0.000495 in scientific notation?

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Answer 1 · 2017-12-10T02:27:34

#4.95 xx 10^(-4)#

"Scientific Notation" has ONE digit to the left of the decimal point, then the remaining significant digits, and then the exponential multiplier.

#0.000495# has three significant digits. Moving the decimal point to after the first digit requires moving it four places to the right, or #10^(-4)#.

The resulting notation is:

#4.95 xx 10^(-4)#

Answer 2 · 2017-12-13T09:11:58

#=4.95xx10^(-4)#

#Axx10^n#

where

#1 <= A < 10, ninRR#

#0.000495#

we need to move the dp so that it is between the 4 and 9

and then we will adjust the power of 10 as follows

thus

#0.000495=4.95-:10000#

#=>0.000495=4.95xx1/10000#

#=4.95xx1/10^(4)#

#=4.95xx10^(-4)#