If two triangles are congruent, which of the following statements must be
true? Check all that apply.
A. The triangles have the same shape, but not the same size.
B. The corresponding angles of the triangles are congruent.
C. The triangles have the same shape and size.
D. The corresponding sides of the triangles are congruent.
SUBM

C. The triangles have the same shape and size.

B with C together also is accepted.

Two triangles are congruent if their corresponding sides are equal in length, and their corresponding angles are equal in measure.

Step-by-step explanation:

All the rest are wrong.

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