Damian mixed two samples together:a red liquid that smells irritating and a black
solid with no smell. He analyzed the results
and found two ending substances. One of
the ending substances was a yellow solid.
This ending substance is made up of the
repeating group of atoms shown above.
Which of the diagrams to the left shows the
repeating groups of atoms that make up the
samples Damian mixed together?

i dont quite have a answer i just need points sorry good luck tho .

point a is the center of this circle.

the ratio of the lengths of (ef/bc) and (ad/ih) is 2: 1.

step-by-step explanation:

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".