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B and F

Step-by-step explanation:

If we take the equation given and work out the problem, then we are able to see the equations that match it. Here is the work:

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B and F

Step-by-step explanation:

Let's see what we get if we expand the parentheses. Remember that when expanding parentheses, we need to find the sum of the products of the "outside number" with each of the "inside terms". In this case, the outside number is -9 and the inside terms are (2/3x) and 1. So:

-9(2/3x + 1) = -9 * (2/3x) + (-9) * 1 = -9(2/3x) - 9 * (1) = -9(2/3x) - 9

From this, we can choose B and eliminate both A and C.

Now, let's simplify -9(2/3x):

-9 * (2/3x) = -18/3x = -6x

Put this back in:

-9(2/3x) - 9 = -6x - 9

So, eliminate D and E and choose F.

The answers are B and F.

Hope this helps!

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation: