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Vikentia [17]
3 years ago
6

2x + 5 - 6x + 21 = 2(3x - 5) - 4

Mathematics
1 answer:
Svetllana [295]3 years ago
8 0

2x + 5 - 6x + 21 = 2(3x - 5) - 4

distribute

2x+5 -6x +21 = 6x-10 -4

combine like terms

-4x +26 = 6x -14

add 4x to each side

26 = 10x -14

add 14 to each side

40 = 10x

divide by 10

4 =x

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Answer: \sqrt{66}

Step-by-step explanation:

The Pythagorean Theorem says that a^2 + b^2 = c^2  where a and b are the two legs.  

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4^2 + \sqrt{50} ^2  = C^2

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Step-by-step explanation:

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3 years ago
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3 years ago
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Answer:

Equation of line in slope-intercept form that passes through (4, -8) and is perpendicular to the graph y= \frac {2}{5} x - 3 is below

y = - \frac {5}{2} x + 2

Step-by-step explanation:

Slope of the equation  y= \frac{2}{5} x -3   is  m_1 = \frac{2}{5}

Since slopes of perpendicular lines are negative reciprocal of each other, therefore slope of other line is given as

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Equation of line in point slope form is given as

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Here  (x1, y1) = (4, -8)

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Simplifying it further  

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