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Elenna [48]
3 years ago
15

-2(-7n-8)=-39+3n. plz solve and explain the answer​

Mathematics
1 answer:
Anna35 [415]3 years ago
7 0

Answer:

n = -5

Step-by-step explanation:

-2(-7n-8)=-39+3n

Distribute

14n +16 = -39 +3n

Subtract 3n from each side

14n -3n +16 = -39 +3n -3n

11n +16 = -39

Subtract 16 from each side

11n +16 -16 = -39 -16

11n = -55

divide by 11

11n /11 = -55/11

n = -5

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As you can see from the graph x is valid for all real numbers. This is true because this function is continuous. Another characteristic of this function is that it is periodic.

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What are the domain and range of f(x) = 4* – 8?
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Answer:

domain: {x | x is a real number}

range: {y l y> -8}

Step-by-step explanation:

f(x) = 4x² – 8 is a parabola, a U shape.

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f(x) = ax² + bx + c

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The circle will form a sphere. (See 1st figure attached)

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Find the slope of the line. On a coordinate plane, a line goes through (0, negative 6) and (2, 0). a. Negative one-third c. 3 b.
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The slope of the line that passes through between (0, -6) and (2, 0) is: C. 3.

<h3>What is the Slope of a Line?</h3>

The slope of a line can be defined as the measure of the ratio of the vertical distance to the horizontal distance that exists between two points on a coordinate plane.

<h3>How to Find the Slope of a Line?</h3>

If we are given two points on a line, (x1, y1) and (x2, y2), the slope (m) is the rise/run = change in y / change in x = (y2 - y1)/(x2 - x1).

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Plug in the values into the slope formula to find the slope:

Slope (m) = (0 - (-6)) / (2 - 0)

Slope (m) = (0 + 6) / (2 - 0) [minus multiplied by minus is plus]

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Thus, the slope of the line that passes through between (0, negative 6) and (2, 0) is calculated as: C. 3.

Learn more about slope on:

brainly.com/question/3493733

#SPJ1

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