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Anna11 [10]
4 years ago
5

Evaluate the expression when m=-3. 2 m” +8m-7 HELP ASAP

Mathematics
2 answers:
11Alexandr11 [23.1K]4 years ago
4 0
The answer is: -3^2+8(-3)-7=-40
ryzh [129]4 years ago
4 0

Answer:

-22

Step-by-step explanation:

I'm assuming you don't need an explanation because this is just a short answer question.

Hope this helps! :)

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How much will you pay for 5 pounds of shrimp if the cost is 2 pounds for $10.99?
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3(x-7) = 2 (x - 12) <br> i need help fast
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A bag has 8 number tiles numbered one through eight. You draw a number tile, replace the tile and draw a second tile. What is th
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3 years ago
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Can someone help me with both of the or may be one
azamat

Question 6

Given:

QR = RS

QR = x + 6

RS = 4x

To find:

Length of line segment QS

Steps:

We know QR = RS, so substituting we get,

x + 6 = 4x

     6 = 4x - x

     6 = 3x

  6/3 = x

     2 = x

      x = 2

Now,

QS = QR + RS

QS = x + 6 + 4x

QS = 2 + 6 + 4(2)

QS = 2 + 6 + 8

QS = 8 + 8

QS = 16 units

Therefore, the length of QS is 16 units

Question 7

Given:

QR = RS

QR = 2x - 2

RS = 2x

To find:

Length of line segment QS

Steps:

We know that QR = RS, so substituting the values we get,

          QR = RS

      3x - 2 = 2x

3x - 2 - 2x = 0

     3x - 2x = 2

               x =2

Now,

QS = QR + RS

QS = 3x - 2 + 2x

QS = 3(2) - 2 + 2(2)

QS = 6 - 2 + 2(2)

QS = 6 - 2 + 4

QS = 4 + 4

QS = 8 units

Therefore, the length of QS is 8 units

Happy to help :)

If u need any help feel free to ask

7 0
3 years ago
Read 2 more answers
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