A square with a side length of 9cm will be long after a scale factor of 1.5 a. 6 cm

b. 7.5 cm

c. 10.5 cm

d. 13.5 cm

(if you just put something random for the points i will report)

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

step-by-step explanation:

goog be able to you with that maybe