In the recent year, about 20,700,000 passengers traveled by train in the united states. what is this number written in scientific notation?

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step-by-step explanation:

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his first public project he is asked to create a small scale drawing. the garden is a right triangle with base 25m and height 30m. are you trying to solve for the last side/hypotenuse? the irrational form of the answer would be 5\sqrt{61}