n the graphic below, ΔABC ≅ ΔDEF by SAS. In order for this to be true, what additional information must be given? AC≅ DF CB≅FE ∠A ≅ ∠D None of these choices are correct.

i think is g(1)=-1.

hope that i can

a is the right answer

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer: its c because when it has a magnet next to it it will move away from the mixture. hope this

step-by-step explanation: