How do you express #50,000,000# in scientific form?

1 Answer
Apr 13, 2017

Answer:

#5 xx 10^7#

Explanation:

Scientific notation is a way of writing very big or very numbers using powers of 10.

The powers of #10# are: # 10," "100," "1000," "10000 ...# etc

#100 = 10^2" and 100,000 = 10^5# and so on.

#400# means there are 4 hundreds, or
#400 = 4 xx 100 = 4 xx 10^2#
#435# means there is a bit more than 4 hundreds, or

#4.35 xx100 = 4.35xx 10^2#

There is always only ONE digit before the decimal point.

#5color(red)(0,000,000.) = 5 xx10^color(red)(7)#

Count how many place holders there are.

#5color(red)(1,300,000.)# would be written as #5.35 xx 10^color(red)(7)#