1. ABEF is a parallelogram, EBIDC Definition of parallelogram 2. AFIIBE, FElAB Part of lines FE and AB 3. AFICD Opposite sides of a parallelogram are Il Given 4. FDIIAC 5. ACDF is a parallelogram. Transitive

u what ia this? wait what grade work is thia how do i find what grade level im answerinv

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

y=mx+b

step-by-step explanation:

m slope, b y-intercept