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is3535
 one year ago
so hard help
is3535
 one year ago
so hard help

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freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[\frac{2 \times 10^{21}}{8 \times 10^3} =\frac{2}{8} \times \frac{10^{21}}{10^3} \\ \text{ first step : write } \frac{2}{8} \text{ as a decimal } \\ \text{ second step : write } \frac{10^{21}}{10^3} \text{ as } 10^\text{some number } \\ \text{ using law of exponents } \\ \text{ after performing these two steps I have one more for ya }\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.2ok good and what does 10^(21)/10^3 simplify to in the form I asked

freckles
 one year ago
Best ResponseYou've already chosen the best response.2do you know law of exponents?

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[\frac{x^n}{x^m}=x^{nm} \\ \text{ so } \\ \frac{10^{21}}{10^3}=?\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.2not too sure how you got that from the rule I just listed

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[\frac{x^n}{x^{m}}=x^{nm} \\ \frac{10^{21}}{10^3}=10^{213}=10^?\] what is 213 ?

freckles
 one year ago
Best ResponseYou've already chosen the best response.2ok \[\frac{2 \times 10^{21}}{8 \times 10^{3}}=.25 \times 10^{18} \\ \text{ now to write in scientific notation } \\ \text{ you want to make sure there is 1 digit to the left of the decimal } \\ \text{ this digit cannot be 0 }\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[.25 \times 10^{18}=2.5 \times 10^?\] so we need to figure out what this ? needs to be and we are done

freckles
 one year ago
Best ResponseYou've already chosen the best response.2\[.25 \times 10^{18} =(2.5 \times 10^{1}) \times 10^{18} \\ =2.5 \times 10^{1} \times 10^{18} \\ =2.5 \times 10^{1+18} \\ =2.5 \times 10^{17}\] is right

is3535
 one year ago
Best ResponseYou've already chosen the best response.02.5 x 10^17 is my answer

freckles
 one year ago
Best ResponseYou've already chosen the best response.2dw:1442256696718:dw

is3535
 one year ago
Best ResponseYou've already chosen the best response.02.5 x 10^17 is my answer
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