Question

use the references to access important values if needed for this question. write each of the following numbers to 3 significant figures in exponential or scientific notation. write each number with only one non - zero digit before the decimal point. 7670 0.000571 0.000844 168000 submit answer retry entire group 9 more group attempts remaining

Explanation:

For 7670:

Step1: Identify significant figures

The number is 7670. The first three significant figures are 7, 6, 7.

Step2: Convert to scientific notation

We move the decimal point 3 places to the left to get \(7.67\times10^{3}\) (since \(7670 = 7.67\times1000=7.67\times 10^{3}\)).

For 0.000571:

Step1: Identify significant figures

The number is 0.000571. The first three significant figures are 5, 7, 1.

Step2: Convert to scientific notation

We move the decimal point 4 places to the right to get \(5.71\times10^{-4}\) (since \(0.000571=\frac{5.71}{10000} = 5.71\times10^{-4}\)).

For 0.000844:

Step1: Identify significant figures

The number is 0.000844. The first three significant figures are 8, 4, 4.

Step2: Convert to scientific notation

We move the decimal point 4 places to the right to get \(8.44\times10^{-4}\) (since \(0.000844=\frac{8.44}{10000}=8.44\times 10^{-4}\)).

For 168000:

Answer:

s:

• \(7670 = \boldsymbol{7.67\times10^{3}}\)
• \(0.000571=\boldsymbol{5.71\times10^{-4}}\)
• \(0.000844=\boldsymbol{8.44\times10^{-4}}\)
• \(168000=\boldsymbol{1.68\times10^{5}}\)