Mathematics
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OpenStudy (anonymous):
please write in scientific notation
(2 x 10*7*)(1.3 x 10-*3*)
Inside the *'s are exponents
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OpenStudy (anonymous):
be a good boy
OpenStudy (anonymous):
So\[(2\times10^{7})(1.3\times10^{-3})\]?
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
please help
OpenStudy (anonymous):
just pop that sucker into a calculator.
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OpenStudy (anonymous):
what do i do with exponents
i know its 2.6x10?
OpenStudy (anonymous):
i dont know the expontent answer
OpenStudy (unklerhaukus):
\[(2\times10^{7})(1.3\times10^{-3})\]\[=(2\times1.3)(10^7\times10^{-3})\]\[=2.6\times10^4\]
OpenStudy (anonymous):
so i subtract the expontent?
OpenStudy (anonymous):
Yup
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OpenStudy (anonymous):
wait so how would you do this (4 x 102)(15 x 103)
OpenStudy (unklerhaukus):
no add exponents
OpenStudy (anonymous):
2 and 3 are exponents
OpenStudy (anonymous):
the oens after the 10's
OpenStudy (unklerhaukus):
(7)+(-3)=4
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OpenStudy (anonymous):
\[(2* 10^7)(1.3 * 10^{-3})=2*1.3*10^7*10^{-3}=2.6*10^4\]Clearly, not typing fast enough.....
OpenStudy (anonymous):
yeah
OpenStudy (anonymous):
but can you help with this one
OpenStudy (anonymous):
so i have two examples?
OpenStudy (unklerhaukus):
\[(4 \times 10^2)(15 \times 10^3)\]
\[=(4 \times15)( 10^3\times 10^2)\]
\[=(4 \times15)( 10^{3+2})\]
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OpenStudy (anonymous):
oh thanks so much
OpenStudy (anonymous):
so 60x10*5*
OpenStudy (anonymous):
?
OpenStudy (unklerhaukus):
yeap, it is that easy
OpenStudy (anonymous):
well heres the prob
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OpenStudy (unklerhaukus):
but i would write that as
60x10^5
OpenStudy (anonymous):
the answer says 60x10*6*
OpenStudy (anonymous):
you sure you dont multiply the exponents?
OpenStudy (unklerhaukus):
\[60\times 10^5=6\times10^6\]
OpenStudy (anonymous):
that is a choice too
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OpenStudy (unklerhaukus):
\[x^n\times x^m=x^{n+m}\]
OpenStudy (anonymous):
Simplify: (x - 8)2 please help
OpenStudy (anonymous):
?????
OpenStudy (unklerhaukus):
ok for scientific notation one numeral before the decimal place is correct
OpenStudy (anonymous):
@UnkleRhaukus u my hero luv yah boy or girl no weird
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OpenStudy (unklerhaukus):
(x - 8)^2
\[=(x-8)^2=(x-8)(x-8)=x(x-8)-8(x-8)=\cdots\]
OpenStudy (anonymous):
uncle
OpenStudy (anonymous):
help me with this then please?
OpenStudy (unklerhaukus):
; )
OpenStudy (anonymous):
its a division one
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OpenStudy (anonymous):
im a little girl and thank u
OpenStudy (unklerhaukus):
did you complete that last one @davidbecerra ?
OpenStudy (anonymous):
yes answer was 6x10*6*
OpenStudy (anonymous):
one day @UnkleRhaukus we will be married and rich luv yah again
OpenStudy (anonymous):
help with this please
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OpenStudy (unklerhaukus):
one day,
OpenStudy (unklerhaukus):
yer
OpenStudy (anonymous):
im single and adult text me plz
OpenStudy (anonymous):
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