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4 votes
How many times greater is 2.3 x 10 to the power of -4 then 1.15 x 10 to the power of -8?

115
200
11,500
20,000

User Javid
by
6.4k points

1 Answer

6 votes

Answer:

20,000

Explanation:


\text{How many times greater is}\ 2.3*10^(-4)\ \text{then}\ 1.15*10^(-8)?


\text{Divide}\ 2.3*10^(-4)\ \text{by}\ 1.15*10^(-8):


(2.3*10^(-4))/(1.15*10^(-8))=(2.3)/(1.15)*10^(-4-(-8))=2*10^4=2*10,000=20,000


\text{Used:}\\\\(a^n)/(a^m)=a^(n-m)

User Laurent Legrand
by
7.0k points