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ikadub [295]
3 years ago
15

Simplify the expression using properties of operations. 5(x−4)+2x

Mathematics
1 answer:
Elena-2011 [213]3 years ago
7 0
1st: 5x-20+2x (distribute the 5 to the numbers in the parenthesis) distribution property

2nd: 7x-20 (add like terms aka 5x and 2x) I believe commutative property of addition

Finished!
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3 years ago
What is the vertex of y=-3x^2+6x+15? Help is much appreciated.
DENIUS [597]

Answer:

<u>(1, 18)</u>

Step-by-step explanation:

Rewrite the equation in vertex form by completing the square for -3x^2 + 6x + 15. This = -3(x - 1)^2 + 18.

Set y equal to the new right side.

y = -3(x - 1)

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3 years ago
What is the slope of this graph
Elden [556K]

Answer:

The slope of the line = m = 2

Step-by-step explanation:

Given

The points

  • (0, 0)
  • (1, 2)

To determine:

The slope of this graph

Determining the slope between (0, 0) and (1, 2)

  • (x₁, y₁) = (0, 0)
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Using the formula

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               =  [2 - 0] / [1 - 0]

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Thus, the slope of the line = m = 2

8 0
3 years ago
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