y=(c+b)/ab. Hope this helped, could I possibly get brainliest?
won't it be 3.2 because A square has four sides so you multiply 0.8 by 4
2y/(y²-8y+5) - 1/(y-5)=
2y/(y-5)(y-3) - 1/(y-5)=
Least common multiple=(y-5)(y-3)
2y-1(y-3) / (y-5)(y-3)=
2y-y+3 / (y-5)(y-3)=
y+3 / (y-5)/y-3)
Answer : (y+3) / (y-5)(y-3).
you did right, congratulations!!.
The amount of passwords possible is:

Since he only tries once for the first try we get:

Thus there is a:

Chance he will guess the password on his first try.
H(k) = k^2 - k so we just substitute in 10 for K.
h(10) = 10^2 - 10. 100 - 10 = 90
h(10) = 90.