SOLUTION: 642*(4.0*10to the negative 5 power ) express with appropriate significant figures .

SOLUTION: 642(4.010to the negative 5 power ) express with appropriate significant figures .

Question 777394: 642*(4.0*10to the negative 5 power ) express with appropriate significant figures .
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
When multiplying, the result is only as accurate as the term with the least amount of significant figures.

642 => 3 sig figs
4 => 1 sig fig
10^(-5) => 5 sig figs

642 * 4 * 10^(-5) = 0.02568 = 0.03

Here is some more information about significant figures:

https://www.nku.edu/~intsci/sci110/worksheets/rules_for_significant_figures.html
RELATED QUESTIONS
Performing the indicated operations and express final answer using the correct number of... (answered by math_tutor2020)

Two point charges each with 7.0×10−2 C of charge are 0.12 m apart. Knowing that k is... (answered by ikleyn)

Express the following number in standard decimal notation. Remember to use the... (answered by lynnlo)

express the following number to three significant figures and write it as a number btween (answered by cleomenius)

Give the correct number of significant figures for 2500, 2500., 0.0043, 0.06050 SHOW... (answered by Edwin McCravy)

express the following with negative exponents (3/2)power... (answered by Fombitz)

Perform these operations with the appropriate number of significant figures. (a)... (answered by MathLover1)

express 0.07569 to 3 significant... (answered by Alan3354)