If (x-y)=15 what is the value of x^2 -2xy+y^2​

its 60

4 x 12 = 48

3 x 4 = 12

48 + 12 = 60

yeeeet

e^-kt = n/n0 = 0.79  

-kt = ln 0.79  

t = - ln 0.79/0.0001  

= 2357 years

step-by-step explanation:

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true