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Rzqust [24]
3 years ago
5

Show your work for this one

Mathematics
2 answers:
Klio2033 [76]3 years ago
4 0

Step-by-step explanation:

multipy the two sides by 2

n+4= -16

move the constant to the right change its sign

n= -16 - 4

calculate the difference

N= - 20

Nutka1998 [239]3 years ago
3 0

Answer:

n=-20

Step-by-step explanation:

1) Subtract 2 from both sides.

\frac{n}{2} =-8-2

2) Simplify −8−2  to −10.

\frac{n}{2} =-10

3) Multiply both sides by 2.

n=-10*2

4) Simplify 10 * 2 to 20.

n=-20

<u><em>Therefor, the answer is </em></u><u><em>n = - 20.</em></u>

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Determine a polynomial that represents the area of the parallelogram.<br> A=
sp2606 [1]

Answer:

4b² - 16

Step-by-step explanation:

The formula to find the area of a parallelogram equals bh, where b = base and h - height. We're given the base as 2b + 4 and the height as 2b - 4.

  • (2b+4)*(2b-4)=(2b+4)(2b-4)
  • (2b+4)(2b-4)=(2b)(2b)+(2b)(-4)+(4)(2b)+(4)(-4)
  • 4b^2-8b+8b-16
  • 4b^2-16

Therefore, the answer is 4b² - 16.

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Step-by-step explanation: Hope this help :D

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3 years ago
Identify the x- and y- intercepts of this equation. 5 − 4 = 20
Alinara [238K]

T he x and y intercepts of the equation: 5x-4y=20 are : y-intercept is (0,-5) and x-intercept is (4,0)

So, Option D is correct.

Step-by-step explanation:

we need to identify the x and y intercepts of the equation: 5x-4y=20

Finding x-intercept

For finding x-intercept put y=0

We are given the equation:

5x-4y=20

Solving:

5x-4y=20\\5x-4(0)=20\\5x=20\\x=\frac{20}{5}\\x=4

So, x-intercept is (4,0)

Finding y-intercept

For finding y-intercept put x=0

We are given the equation:

5x-4y=20

Solving:

5x-4y=20\\5(0)-4y=20\\-4y=20\\y=\frac{20}{-4}\\y=-5

So, y-intercept is (0,-5)

the x and y intercepts of the equation: 5x-4y=20 are :y-intercept is (0,-5) and x-intercept is (4,0)

So, Option D is correct.

Keywords: x and y intercepts

Learn more about x and y intercepts at:

  • brainly.com/question/1502731
  • brainly.com/question/11705002
  • brainly.com/question/1332667

#learnwithBrainly

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3 years ago
What is the slope of a line passing through the points (-1,-4) and (2,2)
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