If AC = 206, find the value of Then find AB and BC

B is the midpoint. AB+BC=AC

Since B is the midpoint, lets take AB and BC to be x.

x+x = 206

2x = 206

x = 103

Therefore the value AB and BC is 103.

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

where did you get them? if you picked from the grass, is is probably poisonous.

step-by-step explanation: