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4 years ago

Please help! It's due today.

Mathematics

2 answers:

Georgia [21]4 years ago

7 0

Answer:

Step-by-step explanation:

First substitute the numbers for x and y: -6(-9)-3(-6)+2(-9)

(the screenshot below will explain the rest)

enot [183]4 years ago

4 0

Answer:

Step-by-step explanation:

Pretty fun question to answer actually.

First step: replace all of the x's and y's with the numbers given to us in the equation.

We know that x = -6 and y = -9, so we can replace all of the x and y's in the equation with those two numbers.

Second step: Actually replace the x and y's.

xy - 3x + 2y (I'm replacing x and y with the numbers given to us)

(-6)(-9) - 3(-6) + 2(-9)

Third step: Let's work each operation now.

(-6)(-9) - 3(-6) + 2(-9)

(-6)(-9) = 54 (Remember that two negatives multiplied together make a positive)

-3(-6) = 18

2(-9) = -18 (A negative number multiplied by a positive number makes a negative number)

Fourth step: Add or subtract the results of the operation.

54 + 18 - 18 = 54.

If you have any questions or want me to go further into detail, then please leave a comment. Good luck!

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3 years ago

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irina [24]

Answer:

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Step-by-step explanation:

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3 years ago

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The diagonal of a rectangle is given by:
d = root ((L) ^ 2 + (W) ^ 2)
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(W) ^ 2 = (d) ^ 2- (L) ^ 2
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answer
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