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spayn [35]
4 years ago
7

margos grade average in math was 92. then for seven months, her average dropped an average of five-eighths of a point per month

Mathematics
1 answer:
Margaret [11]4 years ago
6 0
92-7*\frac{5}{8}\\92-\frac{35}{8}\\92-4\frac{3}{8}\\82-\frac{3}{8}\\81\frac{5}{8}

81 5/8
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Step-by-step explanation:

6 0
3 years ago
Add the polynomials (−5x2+8x)+(2x2−3x+7)<br><br> -3x^2+5x+7<br><br> 7x^2+8x+11<br><br> -7x^2+11x+7
____ [38]
( - 5 x² + 8 x ) + ( 2 x² - 3 x + 7)
=  - 5 x² + 8 x + 2 x² - 3 x + 7
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4 0
3 years ago
Lines AD and EC meet at point B. Which of the following statements must be true? Select All that apply.
anastassius [24]

The angles produced are vertically opposite angles, thus opposite angles are <u>congruent</u>. The applicable statements are; A, B, C and D.

Lines AD and EC meeting at point B produces set of angles that are <u>congruent</u> (by vertical opposite property).

Now considering the given diagram, it can be observed that the following statements <u>are</u> applicable: A, B, C and D.

  • Option A is applicable because of the <em>rigid</em> transformation process of 180 ^{o} rotation about B.
  • Option B is applicable because D will be <em>located</em> on ray BA after the 180 ^{o} rotation.
  • Option C is applicable since both processes <em>are</em> true.
  • Option D is applicable since <ABC and <DBE are <em>vertically</em> opposite angles.
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Visit: brainly.com/question/24728573

3 0
3 years ago
Which relation below does NOT represent a function?
Allisa [31]
I think it is the bottom left
7 0
3 years ago
Find the value of each variable so that the quadrilateral is a parallelogram.
Vaselesa [24]

9514 1404 393

Answer:

  x = 21

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Step-by-step explanation:

The diagonals of a quadrilateral bisect each other, so each half of a diagonal is congruent to the other half.

  x -2 = 19

  x = 21 . . . . add 2

__

  y +1 = 26

  y = 25 . . . . subtract 1

4 0
3 years ago
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