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irina [24]
3 years ago
13

Simplify the following expression by combining like terms 2x+7x^2-5x+8x^2

Mathematics
1 answer:
olga2289 [7]3 years ago
3 0

Answer:15x^2-3x

Step-by-step explanation:

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Marylou buys a package of 500 jewels to decorate 4 different pairs of jeans. She uses the same number of jewels on each pair of
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3 years ago
Which of the following represents y > 2x - 3?
Oksanka [162]

Answer: Choice A

The two characteristics here are:

  1. The boundary line is a dashed line. This visually indicates to the reader "points on the boundary do NOT count as solutions". Think of the boundary as an electric fence you cannot touch, but can get closer and closer to. We aren't including boundary points directly because of the lack of "or equal to".
  2. The shading is above the boundary, due to the "greater than" sign. This only works if we have y isolated.

The graph of choice B is y \le 2x-3 since we have a solid line and shading below the solid line. This time points on the boundary are part of the solution set.

7 0
2 years ago
I need help in this plz!!!!
Mashutka [201]

Step-by-step explanation:

1) = {5(x+y)} - 2x

= 5x + 5y - 2x

= 3x + 5y

2)= {2(p×q)} + (p×q)

= (2p×2q)+ p×q

= 4pq + pq

= 5pq

3)= 6a + (8b + 2a)

= 8a + 8b

= 8(a+b)

4)= 3x² + ( x²+7x)

= 4x² + 7x

= x(4x+7)

8 0
3 years ago
Read 2 more answers
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