Aly drew 4 circles, each with a different diameter, on a piece of paper. For each circle, she laid a piece of string along the outline, and then measured the length of the string. Her results are shown in the table below. Circle Measurements Diameter Length of String 2 in 6.25 in 4 in 12.5 in 6 in 18.75 in 8 in 25 in Which conclusion could Aly come to about the circumference of a circle using this data? A. C 2 × d B. C 4.25 + d C. C 3 × d D. C 3.5 × d

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".

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

80 the answer is 80

step-by-step explanation: