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wel
3 years ago
13

How do you prove a parallelogram using these 2 triangles, somebody needs to explain this to me?

Mathematics
1 answer:
Bingel [31]3 years ago
8 0

RQP=ONP

Since R is the midpoint of MQ, then MR and RQ are equal.

Since R is the midpoint of MQ, then P must be the midpoint of NQ

The triangles are congruent and the trapezoid is three or those triangles.

RQR reflected is a triangle inside the trapezoid. The triangles at the left and right of the trapezoid are congruent.

Since all the triangles are the exact same, then they have the same height and same length.

So you connect them without like sliding a triangle up a little bit.

The 4 congruent triangles add up to be a parallelogram.

I don't know if this is what you learned in class or where ever you did learn it but this is my way (not where-I-learned-it-from's way).

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Determine the slope of the line given the graph 3,-3 and 0,2
BigorU [14]

Answer:

\displaystyle m = \frac{-5}{3}

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

Coordinate Planes

  • Reading a coordinate plane
  • Coordinates (x, y)

Slope Formula:                                                                                                          \displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify points</em>

Point (0, 2)

Point (3, -3)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope <em>m</em>

  1. Substitute in points [Slope Formula]:                                                              \displaystyle m = \frac{2 + 3}{0 - 3}
  2. Simplify:                                                                                                             \displaystyle m = \frac{-5}{3}
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3 years ago
A recipe calls for 1/4
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3 0
3 years ago
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What is the equation of the line that contains point ( -2,1) and has a slope of 4
marshall27 [118]

Answer:

y=4x+7

Step-by-step explanation:

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6 0
3 years ago
What is 60 out of 70 as a percentage?
bearhunter [10]
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6 0
3 years ago
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Which line has an equation of y=-5x+4 in slope-intercept form?
tino4ka555 [31]

You can figure the line for each pair of points, or you can try the points in the equation you have and see which are on the line.


First answer: x=1, y=-5×1 +4 = -1 . . . not 9. (1, 9) is not a point on the line


Second answer: x=2, y=-5×2 +4 = -6 . . . not -14. (2, 14) is not a point on the line


Third answer: (see the calculation for the first answer) . . . -1 ≠ 1. (1, 1) is not a point on the line


Fourth answer: (see the calculation for the second answer) We know that (2, -6) is on the given line. Checking (4, -16), we find it is as well.



The appropriate choice is the 4th answer:

... a line passing through the points (2, -6) and (4, -16)

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3 years ago
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