Imagine you have a piece of string. imagine cutting the string in half, and noting the measure of the piece. if you repeat this process until you cannot cut anymore string in half, what do you suppose happens to the measurement of the strings as the number of pieces rises?

Answer with explanation:

Let the length of string = x unit

⇒When it is cut into half ,

Length of string will be

and when again it is cut into half ,then the length of string will be  

and when it is again cut into half length then length of string will be  .

→And this process continues.

→If you look at the length of strings , it follows geometric progression having Common ratio equal to   that is second string Length divided by first string length.

→The length of string will be of negligible as the number of pieces rises but it will be not equal to Zero.

⇒If you want to find the length of string after it is cut into n parts of , it will be equal to

answer: the answer is 35%

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".