Graph the piecewise function. {3x-5 if x <= -1
f(x) = {-2x+ 3 if -1 = 4
Pleas hurr
I will give like 30 point

The perimeter of △cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.