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k0ka [10]
2 years ago
8

Please help with 2. 3. and 4.

Mathematics
2 answers:
Y_Kistochka [10]2 years ago
6 0

Answer:

2. Since it is equilateral, we just set up an equation with using any two sides (since they are all equal)

12x - 22 = 10x - 6

12x - 10x - 22 = -6

2x - 22 = -6

2x = 22 - 6

2x = 16

x = 16/2

x = 8

Each side = 74

3. Same formula for this. Get any two sides and setup the equation.

4x - 25 = x + 14

4x - x - 25 = 14

3x = 25 + 14

3x = 39

x = 39/3

x = 13

Each side = 27

4. This one is also simple. Since DE = EF. We substitute its sides with the equations.

8x - 13 = 5x + 17

8x - 5x - 13 = 17

3x - 13 = 17

3x = 17 + 13

3x = 30

x = 30/3

x = 10

DE and EF = 67

DF = 31

Mashcka [7]2 years ago
5 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

the second one is correct. the first one is wrong because shape C also has those angles. the third one is wrong because shape C also has no perpendicular sides. the fourth one is wrong because shape C also has 2 pairs of angles with the same measure.

5 0
3 years ago
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Craig is designing a new cylinder-shaped can for a pet food company. He wants the height of the can to be 40 mm and the radius o
devlian [24]
The height of the can for this case is given by:
 h = 40 mm
 The radius of the can is given by:
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The diameter of the can will be:
 
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3 years ago
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cricket20 [7]

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Step-by-step explanation:

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Diagram shows a section of a bridge between the points A and K. The length of line segment is 640 meters. ∆ABC, ∆CDF, and ∆FJK a
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AK = 640
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ΔCDF is the big triangle.

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If a soccer team played 160 games and won 65% of them, how many games did they win?
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