Help on this math problem don't know how to do it
asked Sep 12 in Other Math Topics by anonymous

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3 Answers

Although the decimal point doesn't show in this number, it is actually positioned after the number itself, because the number is a whole number. So the decimal point comes after the 907.

Next we count how many digits there are between this position and the first digit of the number (1). There are 7 digits. Remember that.

Next, we place the decimal point immediately after the first digit: 1.2674907. To get the decimal point from where it was at the end, we had to move it 7 places to the left. This tells us the exponent of 10 that's needed to write the number in standard form, in other words we multiply by 10^7 which can also be written E7 (E stands for exponent).

The number in standard form is therefore 1.2674907 x 10^7 or 1.2674907E7. If you were handwriting the exponent of 10 it would be a superscript 7 on 10, but because we don't usually have superscript formats on a computer it's represented by 10^7.

answered Sep 12 by Rod Top Rated User (466,280 points)
answered Sep 13 by Paul Vincent (200 points)
12,000,000 + 600,000 + 70,000 + 4,000 + 900 + 7 = 12,674,907
answered Sep 13 by Mathical Level 10 User (55,960 points)
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