31 207 826 written in scientific notation correct to 3 significant figures is:

Question

BlackTom AI · Accepted Answer

The task is to write 31 207 826 in scientific notation, keeping 3 significant figures.
First, identify the magnitude: 31,207,826 is a number between 10^7 and 10^8, so the scientific notation form will have an exponent of 7 when normalized to a decimal between 1 and 10.
Next, convert to decimal form: 31,207,826 = 3.1207826 × 10^7.
Now, round to 3 significant figures. The digits 3, 1, and 2 give 3.12 as the significand, and the following digit (0) doesn’t affect rounding since it’s already within the 3 sig figs.
Thus, the correctly rounded scientific notation is 3.12 × 10^7.
The provided answer option '3.12 × 10^7' matches this result exactly.
Note: The answer options are not shown in the prompt, so this explanation focuses on evaluating the stated correct form rather than comparing against other alternatives.

FMT001 Week 2 Quiz |LA006

31 207 826 written in scientific notation correct to 3 significant figures is:

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FMT001 Week 2 Quiz |LA006

31 207 826 written in scientific notation correct to 3 significant figures is:

查看解析

登录即可查看完整答案

类似问题

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Select the smallest number in the following list.2.8 x 1042881.1928.8 x 102

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