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Olin [163]
2 years ago
14

(MULTIPLE CHOICE QUESTION)

Mathematics
2 answers:
sesenic [268]2 years ago
5 0

Answer: a or c

Step-by-step explanation:

weeeeeb [17]2 years ago
3 0

Answer:

Transitive property is used in step 4.

Step-by-step explanation:

Transitive property states that if

a = b \\b = c\\ then\\a = c

Here we have

\angle 5 \cong \angle 1\\\angle 1 \cong \angle 3\\then\\\angle 3 \cong \angle 5

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I know a trick! Go onto google... and search up this problem online without any capitals... all lowercase, you can sometimes find the answer to this, or the whole page!
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3x^+5x+2=0 <br> need work shown plz
Alexxandr [17]

Answer:

{3x}^{2}  + 5x + 2 \\  =  {3x}^{2}  + 3x + 2x + 2 \\  = 3x(x + 1) + 2(x + 1) \\  = (3x +2)(x + 1)

7 0
2 years ago
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The three lines given below form a triangle. Find the coordinates of the vertices of the triangle.
LenKa [72]

Answer:

  • (3, 5), (1, 2) and (5, 1)

Step-by-step explanation:

Make three systems with pairs of lines and solve them to work out the vertices.

1) <u>Line 1 and line 2</u>

  • -3x + 2y = 1
  • 2x + y = 11

<u>Double the second equation and subtract equations:</u>

  • -3x + 2y - 2(2x + y) = 1 - 2(11)
  • -3x - 4x = 1 - 22
  • -7x = - 21
  • x = 3

<u>Find y:</u>

  • 2*3 + y = 11
  • 6 + y = 11
  • y = 11 - 6
  • y = 5

The point is (3, 5)

2) <u>Line 1 and line 3</u>

  • -3x + 2y = 1
  • x + 4y = 9

<u>Triple the second equation and add up equations:</u>

  • -3x + 2y + 3(x + 4y) = 1 + 3(9)
  • 2y + 12y = 1 + 27
  • 14y = 28
  • y = 2

<u>Find x:</u>

  • x + 4*2 = 9
  • x + 8 = 9
  • x = 1

The point is (1, 2)

3) <u>Line 2 and line 3</u>

  • 2x + y = 11
  • x + 4y = 9

<u>Double the second equation and subtract the equations:</u>

  • 2x + y - 2(x + 4y) = 11 - 2(9)
  • y - 8y = 11 - 18
  • - 7y = - 7
  • y = 1

<u>Find x:</u>

  • x + 4*1 = 9
  • x + 4 = 9
  • x = 5

The point is (5, 1)

8 0
2 years ago
Simplify 12/5(10/3b+15/4) .
Elodia [21]
Step 1. Simplify 10/3b to 10b/3
12/5(10b/3 + 15/4)
Step 2. Distribute 
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7 0
3 years ago
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Can a triangle be formed with the sides lengths of 7 cm, 5 cm and 12 cm?
laiz [17]

Answer:

NO because 7+5=12

The sum must be larger (not equal to) the longest side. If it's exactly the same, there's no room to for the shorter two sides to angle up to form a triangle.

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