Accuplacer Practice Test

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Question: 1 / 400

Convert 120,500,000,000,000,000,000 to Scientific Notation.

1.205x10^20

Scientific notation is a way of writing numbers that are very large or very small, using powers of 10. In this case, the number given is extremely large and can be written as 1.205x10^20 in scientific notation. This means that the decimal point is moved 20 places to the left, giving the number a power of 10.

Option B would be incorrect because the decimal point is in the wrong place, making the number 10 times smaller.

Option C would be incorrect because the decimal point is moved too far to the right, making the number 100 times smaller.

Option D would be incorrect because the decimal point is in the wrong place, making the number 100 times larger.

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12.05x10^19

120.5x10^18

1.25x10^21

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