So there are two triangles here: Smaller one (ADE) and bigger one (ABC) and they both are similar.
So you can use proportions here.
AB / AC = AD / AE
AB = AD + DB = 6 + 1 = 7
AC = AE + 3
AD = 6
So plug in these values:
AB / AC = AD / AE becomes
7 / (AE + 3) = 6 / AE
Now do the cross multiply:
7 AE = 6 (AE + 3)
Now solve for AE:
7AE = 6AE + 18
AE = 18
3.95*10^9 move the decimal to the left untill it is in between the last ans 2nd to last number
I’m questioning whether or not the Gacha life thing matters or not.
Answer:
1.) r>-3/4 and 2.) 157<-1