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IgorLugansk [536]
3 years ago
6

Show that the points A(2,-2), B(14, 10), C(11, 13) and

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
6 0

Answer:

  is not a rectangle

Step-by-step explanation:

The midpoints of the diagonals are ...

  AC midpoint = ((2, -2) +(11, 13))/2 = (13/2, 11/2)

  BD midpoint = ((14, 10) +(-2, 1))/2 = (6, 11/2)

The midpoints of the diagonals are different, so this is not a rectangle or any sort of parallelogram.

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Solve the rational equation (3x^2+1)/(x-1) + x =4 + 4/(x-1)
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Answer:

The answer to your question is letter D

Step-by-step explanation:

Rational equation

                               \frac{3x^{2} + 1}{x - 1} + x = 4 + \frac{4}{x - 1}

Simplify

                             \frac{3x^{2} + 1 + x(x - 1)}{x - 1} = \frac{4(x - 1) + 4}{x - 1}

Cancel the denominators and expand

                            3x² + 1 + x² - x = 4x - 4 + 4

Simplify                                              

                            4x² - x + 1 - 4x = 0

                            4x² - 5x + 1 = 0

Factor

                            4x² - 4x - 1x + 1 = 0

                            4x(x - 1) - 1(x - 1) = 0

                             (4x - 1)(x - 1) = 0

                            x₁ = 1/4        x₂ = 1

4 0
3 years ago
Factor the following problems<br><br> -13=-4a-2b+c<br> 3=4a+2b+c<br> 5=16a+4b+c<br><br> Please Help!
Pie
1) -13 = -4a - 2b + c
 -13 = -2(2a + b) + c

2) 3 = 4a + 2b +c
  3 = 2(2a + b) + c

3) 5 = 16a + 4b + c
5 = 4(4a + b) + c

[ Final Answers are in bold ]

Hope this helps!
8 0
3 years ago
X y
aalyn [17]
Answer is
<span>C) y = -2x + 3 </span>

when x = 0, y = 3
when x = 1, y = -2(1) + 3 = -2 + 3 = 1
when x = 2, y = -2(2) + 3 = -4 + 3 = -1

solutions matched the table above
5 0
3 years ago
Read 2 more answers
(Geometry) PLZ HELP ASAP
Marianna [84]

Answer:

121 square feet

Step-by-step explanation:

The area of a triangle is the height multiplied by the base divided by 2. Since this is a right triangle, you can simply use the two legs for this. The area of this triangle is therefore:

\dfrac{24.2\cdot 10}{2}=\dfrac{242}{2}=121

Hope this helps!

5 0
3 years ago
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Alexus [3.1K]
I believe they both had 7/8
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