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ra1l [238]
3 years ago
10

How many edges does a dodecahedron have ?

Mathematics
2 answers:
balu736 [363]3 years ago
4 0

Answer:

12

Step-by-step explanation:

posledela3 years ago
4 0
I think it’s 30 to be honest I looked it up and it said it was 30 hopefully this helps
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How do you classify a triangle by its sides
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3 years ago
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Solve.<br><br> −7x = x2 + 12
adelina 88 [10]

Answer:

x = - 4 , x = - 3

Step-by-step explanation:

- 7x = x^2 + 12

Take all terms to one side of equation.

x^2 + 7x + 12 = 0

Find which 2 numbers multiply to give 12 and add to give 7.

a × b = 12

a + b = 7

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x^2 + 4x + 3x + 12 = 0

Factorise each pair of terms separately.

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Bring out common factor of ( x + 4 ) and factorise.

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AND

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THEREFORE:

x = - 4 , x = - 3

5 0
3 years ago
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Step-by-step explanation:

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