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3x=sqrt(7)
x=sqrt(7)/3

hi, i got the answer. not sure if anyone done math labs online, how do you input this

|dw:1349872076838:dw|

034 what in the world is wrong with your x's lol

yes, i work this the same, however when inputing it online, coming back incorrect
maybe the symbol

@Lukecrayonz hahaha why???

Looks like a 2pi or 2r or something :P

what ever it looks like but its my habit

help, how to write the correct solution set (4-3x)^2=39?

Expand (4-3x)^2

expand?

If you expand it you get: (4-3x)*(4-3x)=9x^2 -24x +16

and then = 9x^2 -24x +16 -39 =0=9x^2 -24x -23

and use the abc formula

i mean the Quadratic formula

I'm dutch, sorry

@ Frank 1991yes I got what you where saying

@Frank1991, i meant have to simplify all radicals. heck its multiply choice

use the square root property to solve for the equation. (x-9)^2=64

in the last case you could say \[\sqrt{(x-9)^{2}}=\sqrt{64}=8=x-9\]

so x = 8+9

oh that is strange you could check what wolframalpha is saying

@Frank1991 sure thing

Yes wolfram alpha is also saying something different

I forgot about that a sqaure could also be negative

so we got one answer but forgot about the second

yes

@Frank1991 .. thanks

|dw:1349875404939:dw|

@johnson32 got it

second one: 1048=16 *t ^2 => t = squarroot( 1048/16) = ...

I hope it helped @johnson32

@Frank1991 , so you got 0% interest rate,

@mayankdevnani , yes thank you got that one solve already

no r is the intrest rate

@Frank1991 , I got 65.5 seconds for the object falling at

so use the quadratic formula for: r^2 +2r +(1-3000/3370.8) = 0 and r would be your answer

got it

oh the 3000 and 3370.8 should switch

You obtain r = -2.06 or r=0.06

r=-2.06 makes no sense because there is an increase not a decrease, so your final answer is 0.06

got it? @johnson32

yes I got it, thank you