16. Debra says two squares of different sizes
can have the same perimeter. Is Debra
correct? Why or why not?

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

x = 25/2304

step-by-step explanation:

12cm

the answer is d

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )