A group of students is discussing situations that can be modeled by exponential decay. Which of the following students are correct? Select ALL that apply. Student Response

The final value is larger
than the initial value.

The final value is smaller
than the initial value.

The base is less than 1 but
greater than 0

The base is greater than 1.

step-by-step explanation:

jjj

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".

ab will be equal to