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simplify the following problem

Algebra
Tutor: None Selected Time limit: 0 Hours

(3.1 x 1012)+(2 x 1010)


*bold numbers are exponents 

Apr 12th, 2015

(3.1 x 1012)+(2 x 1010)=

(3.1 x 1012)+(0.02 x 1012)

In the above case, the bases are added

3.1+0.02

3.12*10^12

Apr 12th, 2015

i dont understand


Apr 12th, 2015

(3.1 x 10^12)+ (2 x 10^10) =

The bases are made to the same exponents so that they can be added and raised to the exponents

In the above case,

3.1 x 10^12 will remain the same

2 x 1010= 0.02 x 10^12

(3.1 x 10^12)+ (0.02 x 10^10) =

The bases are then added since they have the same power

3.1+0.02= 3.12

The final answer is 3.12x 10^12

3.12x 10^12


Apr 12th, 2015

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