To express 7090000 in standard form, we need to write it as a number between 1 and 10 multiplied by a power of 10.
To do this, we count the number of digits in the original number, excluding any leading zeros. In this case, there are 7 digits.
Next, we move the decimal point in the original number to the left until there is exactly one non-zero digit to the left of the decimal point. We count the number of places we moved the decimal point and use that as the exponent of 10 in the standard form.
In this case, we can move the decimal point 6 places to the left to get 7.09, which has one non-zero digit to the left of the decimal point. Therefore, we can write 7090000 in standard form as:
7.09 x 10^6
Note that this is the same as 7,090,000, but written in a different way that makes it easier to compare with other numbers and perform calculations.
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