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Serggg [28]
3 years ago
10

What is 778,400,000 in scientific notation?

Mathematics
2 answers:
Anna11 [10]3 years ago
7 0

First of all, this could be easily done with a calculator but it's 7.8^8

FinnZ [79.3K]3 years ago
4 0

When working with very large or very small numbers, scientists, mathematicians, and engineers use scientific notation to express these quantities. Scientific notation is a mathematical abbreviation, based on the idea that it is easier to read an exponent than to count many zeros in a number. Very large or very small numbers need less space when written in scientific notation because the position values ​​are expressed as powers of 10. Calculations with long numbers are easier to do when using scientific notation

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Kayla’s dollhouse has 15.15 square feet downstairs and 6.45 square feet upstairs. What is the estimated total area if you round
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  • The area of Kayla's dollhouse upstairs = 15.15 square feet

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  • To find the estimated Total area of Kayla's dollhouse, we would apply the Addition Operation

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Area of the dollhouse upstairs + Area of the dollhouse downstairs

Rounding to the decimals to the nearest tenth

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15.2 square feet + 6.5 square feet = 21.7 square feet

The estimated total area of Kayla's dollhouse is  21.7 square feet

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