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Flura [38]
3 years ago
6

The question is below

Mathematics
2 answers:
saul85 [17]3 years ago
7 0

Answer:

60 degrees

Step-by-step explanation:

The sum of the angles in a triangle are 180 degrees. The angles look the same size, so divide 180 by 3, and you get 60 degrees

SpyIntel [72]3 years ago
6 0

Answer:

x = 54°

Step-by-step explanation:

The sum of the interior angles of a polygon is

sum = 180° (n - 2) ← n is the number of sides

Here n = 5, thus

sum = 180° × 3 = 540°

Each interior angle is therefore 540° ÷ 5 = 108°

Since the triangles are congruent then x = 108° ÷ 2 = 54°

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Cy+4=d−9y solve for y
tiny-mole [99]

Answer:

Answer:

y= d−4 /c+9

Step-by-step explanation:

cy+4=d−9y

Step 1: Add 9y to both sides.

cy+4+9y=d−9y+9y

cy+9y+4=d

Step 2: Add -4 to both sides.

cy+9y+4+−4=d+−4

cy+9y=d−4

Step 3: Factor out variable y.

y(c+9)=d−4

Step 4: Divide both sides by c+9.

y(c+9)  c+9 = d−4 /c+9

y= d−4 /c+9

3 0
3 years ago
Read 2 more answers
7. Find DE.<br> 11-25<br> E<br> А<br> 4x + 1<br> D<br> С
Arlecino [84]

Answer:

  • DE = 37

Step-by-step explanation:

AD = DC and BE=EC ⇒

DE = 1/2AB

  • 4x + 1 = 1/2(11x - 25)
  • 2(4x + 1) = 11x - 25
  • 8x + 2 = 11x - 25
  • 11x - 8x = 2 + 25
  • 3x = 27
  • x = 27/3
  • x = 9

DE = 4*9 + 1 = 36 + 1 = 37

3 0
2 years ago
Read 2 more answers
-25 + 4(2x + 5) = -61
irina [24]

Answer:

X= -7

Step-by-step explanation:

-25 + 8x +20 = -61

8x  -5 = -61

8x = -56

x = -7

3 0
2 years ago
I need help. A building with a height of 48 m casts a shadow that is 30 m long. A person standing next to the building casts a s
lutik1710 [3]

Answer:

1.28 m

Step-by-step explanation:

48/30 = x/.8

cross multiply

30x = 48(.8)

30x = 38.4

x = 38.4/30

x = 1.28 m

8 0
3 years ago
In the solution of the equation 5 + 3x = - 2x + 9, 2x is added to the equation first. Which of the following should be done next
Mama L [17]
Subtract 5 from both sides to isolate x.
6 0
2 years ago
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