PLEASE HELP ME I WILL MAKE YOU BRAINIST IF YOU ANSWER
A group of students is arranging squares into layers to create a project. The first layer has 6 squares. The second layer has 12 squares. Which formula represents an arithmetic explicit formula to determine the number of squares in each layer?

a1 = 6; an = 6 + a(n − 1), n > 0
a1 = 6; an = 6 ⋅ a(n − 1), n > 0
a1 = 6; an = 6 ⋅ a(n + 1), n > 0
a1 = 6; an = 6 + a(n + 1), n > 0

6.5

step-by-step explanation:

you said it was in the question

~courtney

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl