4 years ago

What is the sum of 4.9 × 10^2 and 6.8 × 10^3?

1 answer:

5 0

The correct answer is letter choice E.
The answer is letter choice E because 4.9 times 10 to the 2nd power which is 490. Then you calculate 6.8 times 10 to the 3rd power which is 6800.
After you calculate these two equations you then add the answer which is 6800+490 which equals (=) 7290.
Letter choice E is the only accurate answer to equal to 7290. How I figured this out is by calculating 7.29 times 10 to the 3rd power the correct answer to this equation is 7290.
It matches equivalently with the problem so the answer is E.

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