It is believed that 4% of children have a gene that may be linked to juvenile diabetes. researchers at a firm would like to test new monitoring equipment for diabetes. hoping to have 21 children with the gene for their study, the researchers test 733 newborns for the presence of the gene linked to diabetes. what is the probability that they find enough subjects for their study?

2

step-by-step explanation:

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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".