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Question: 1 / 400

Write 1.5x10^10 in expanded form:

1,500,000,000

15,000,000,000

The given number is in scientific notation, which is a shorthand way to write numbers that are very large or very small. It consists of a number between 1 and 10 (1.5 in this case) and a power of 10 (10^10 in this case). To write it in expanded form, we multiply the number by 10 raised to the power. In this case, this would look like 1.5 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 x 10 = 15,000,000,000, or 15 billion.

A 1,500,000,000 is incorrect because it is missing a zero in the expanded form.

C: 1,500,000 is incorrect because it equates to 1.5 x 10 x 10 x 10 x 10 x 10, where the power is 5, not 10.

D: 150,000,000 is incorrect because it equates to 1.5 x 10 x 10 x 10 x 10 x 10 x 10, where the power is 6, not

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1,500,000

150,000,000

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