Write the following number by entering one digit in each box of the place value chart. (2\times10)+(6\times1)+\left ( 9\times\dfrac{1}{1000} \right )(2×10)+(6×1)+(9× 1000 1 )left parenthesis, 2, times, 10, right parenthesis, plus, left parenthesis, 6, times, 1, right parenthesis, plus, left parenthesis, 9, times, start fraction, 1, divided by, 1000, end fraction, right parenthesis Hundreds Tens Ones . Tenths Hundredths Thousandths . Now write the number in standard form.

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".

the square root of what number? if you add that, then someone will probably answer the question.