The weight of male babies less than two months old is the United States is normally distributed with mean 12.3 pounds and a standard deviation 3.8 pounds.

a. find the 84th percentile of baby weights
b. find the 11th percentile of baby weights
c. find the third quartile of baby weights

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".

how am i supposed to answer

step-by-step explanation:

kbmflmklbhml; bmlzb; bdhzz

step-by-step explanation: