Can somebody help ??

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

answer: i don't understand it

step-by-step explanation: sorry

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation: