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In scientific notation, what is the sum of [tex]$670,000,000 + 700,000,000$[/tex]?

A. [tex]$1.37 \times 10^{-9}$[/tex]
B. [tex]$1.37 \times 10^7$[/tex]
C. [tex]$1.37 \times 10^8$[/tex]
D. [tex]$1.37 \times 10^9$[/tex]
E. [tex]$137 \times 10^{15}$[/tex]

Answer :

To solve this problem, let's add the two numbers together and then express the result in scientific notation.

1. Add the Numbers:

[tex]\[
670,000,000 + 700,000,000 = 1,370,000,000
\][/tex]

2. Convert the Result to Scientific Notation:

Scientific notation expresses a number as a product of a number (between 1 and 10) and a power of 10. For the number [tex]\(1,370,000,000\)[/tex], you want to express it as [tex]\(a \times 10^b\)[/tex], where [tex]\(1 \leq a < 10\)[/tex].

[tex]\[
1,370,000,000 = 1.37 \times 10^9
\][/tex]

So, the sum of [tex]\(670,000,000\)[/tex] and [tex]\(700,000,000\)[/tex] in scientific notation is [tex]\(1.37 \times 10^9\)[/tex].

Thus, the correct answer is:

[tex]\[
1.37 \times 10^9
\][/tex]

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