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IgorLugansk [536]
3 years ago
15

Quadratic formula x2 + 3x - 5 = 0

Mathematics
1 answer:
FrozenT [24]3 years ago
5 0

Answer:

2x +3x- 5= 0

5x-5=0

5x=0+5

5x=5

x=5÷5

x=1

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I would appreciate it if someone could help answer this problem:)
Vesna [10]

Answer:

x = 85°

Step-by-step explanation:

As noticed this is a Pentagon (5 sided polygon); therefore to find x, first we have to find the sum of it's interior angles;

Sum of interior angles of a pentagon = (n - 2) * 180°

=> Sum of interior angles of a pentagon = (5 - 2) * 180°

=> Sum of interior angles of a pentagon = 3 * 180

=> Sum of interior angles of a pentagon = 540

Now that we know the sum of interior angles, we can set up the equation and solve for x;

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455 + x = 540

x = 540 - 455

x = 85

Hope this helps!

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3 years ago
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Step-by-step explanation:

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2 years ago
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Dahasolnce [82]

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Step-by-step explanation:

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Answer:

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2 years ago
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