Mathematics, 02.08.2019 13:00 kay7060
Find the product and express it in scientific notation. 3.1 x 10-4 x 8.5 x 10-2
Answers: 1
![=26.35\times10^{-4+(-2)}\ \ [\because\ a^n\times a^n=a^{m+n}]](/tpl/images/0161/8378/c7a35.png)
![=26.35\times10^{-4-2)}\ \ [\because\ (+)(-)=(-)]](/tpl/images/0161/8378/dfdb6.png)
![=26.35\times10^{-(4+2))}\ \ [\because\ -a-b=-(a+b)]](/tpl/images/0161/8378/2a7a6.png)
![=26.35\times10^{-6}\ \ [\because\ -a-b=-(a+b)]](/tpl/images/0161/8378/173f9.png)
[∵In scientific notation the decimal number has only one number at the left-side of the decimal.]
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Find the product and express it in scientific notation. 3.1 x 10-4 x 8.5 x 10-2...
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