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astraxan [27]
3 years ago
14

Last one I promise!! Help me plz I will help u

Mathematics
1 answer:
Murrr4er [49]3 years ago
5 0
Answer is 
C. it's one half the area of rectangle of length 4 units and 3 units

because
Area of rectangle = 4 x 3 = 12
Area of triangle = 1/2(4)(3) = 6

so Area of triangle is one half the area of rectangle of 4 and 3 units
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2 x - 5 + 7 y - 3 = 9 x - 1 - y -8 Solve For X AND Y (SHOW WORK PLEASE)
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Answer:

\large\boxed{\sf x = \frac{8y+1}{7} }

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<u>Group the Variable's</u>:

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3 0
2 years ago
Read 2 more answers
X2-3xy-5xy-7y2+4x2+8y2
Zepler [3.9K]

For this case we must simplify the following expression:

x ^ 2-3xy-5xy-7y ^ 2 + 4x ^ 2 + 8y ^ 2

We must add similar terms taking into account that:

  • Equal signs are added and the same sign is placed.
  • Different signs are subtracted and the major sign is placed.

(x ^ 2 + 4x ^ 2) + (- 3xy-5xy) + (- 7y ^ 2 + 8y ^ 2) =\\5x ^ 2-8xy + y ^ 2

Thus, the simplified expression is:

5x ^ 2-8xy + y ^ 2

Answer:

5x ^ 2-8xy + y ^ 2

4 0
3 years ago
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