The largest doll is 7 inches tall. Each of the other falls is 1 inch shorter than the next larger doll. Complete the table that compares the surface areas of the volumes of the seven dolls. 7,6,5,4,3,2,1 is the height I’m looking for the surface area and volume can someone help me I’m confused on the math 8.4 lesson on big ideas math Blue:CC 8th grade

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".

false

step-by-step explanation:

false : it can not go to 9 the highest that part can go is 7

here is your proof

b.   e = 7.5h

hope this , lovely!