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TEA [102]
2 years ago
6

Find b and c, with showing your work.​​

Mathematics
1 answer:
SpyIntel [72]2 years ago
8 0

Answer:

AB = 90 degrees

AC = 60 degrees

Step-by-step explanation:

Since every triangles angles equal to 180 you first subtract 30 from 180 which is 150 degrees. You can see there is a square around a vertex which means that angle is 90 degrees. Now subtract 90 from 150 which is 60 degrees. So the last angle is 60 degrees.

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alexira [117]

Answer:

Option B

Step-by-step explanation:

Given quadratic equation is,

12a² + 9a + 7 = 0

By comparing this equation with standard quadratic equation,

hx² + kx + c = 0

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By using quadratic formula,

a = \frac{-k\pm\sqrt{k^2-4hc}}{2h}

  = \frac{-9\pm\sqrt{9^2-4(12)(7)}}{2(12)}

  = \frac{-9\pm\sqrt{81-336}}{2(12)}

  = \frac{-9\pm\sqrt{-255}}{24}

  = \frac{-9\pm i\sqrt{255}}{24}

a = \frac{-9+ i\sqrt{255}}{24},\frac{-9- i\sqrt{255}}{24}

Therefore, Option B will be the correct option.

3 0
2 years ago
A punch recipe calls for 1/2 gallon of ginger ale, 1/2 qt of
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Step-by-step explanation:

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Step-by-step explanation:

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