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Trava [24]
3 years ago
15

How to find and discover what is m∠A?

Mathematics
1 answer:
vodka [1.7K]3 years ago
6 0

Answer: 113, 57, and 66

Step-by-step explanation:

The sum of all of the interior angles can be found using the formula S = (n - 2)*180. It is also possible to calculate the measure of each angle if the polygon is regular by dividing the sum by the number of sides.

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What is the value of x?
uranmaximum [27]

Answer:

x=\frac{160-51}{2} =54.5°

Step-by-step explanation:

"Theorem 9-13: The measure of an angle formed by two secants, two tangents, or a secant and a tangent drawn from a point outside the circle is equal to half the difference of the measures of the intercepted arcs."

Basically no matter what other circle, secant or tangent you get, you just use the formula Outer\angle=\frac{far.point - near.point}{2}

If you need the outer angle, just put the other angles in and solve

If you need the far or near point angle, re-arrange the formula to get that value.

6 0
3 years ago
2<br> 6-2___ help please <br> 7<br> (30points)
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6 - 2 2/7 = 
6 - 16/7 =
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8 0
3 years ago
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The Pythagorean theorem is true for all similar triangles.<br> A. True<br> B. False
Afina-wow [57]
False. It only relates to the sides of a right triangle in a simple way, so that if the lengths of any two sides are known, the length of the third side can be found.
5 0
3 years ago
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Solve the equation 25x²+100x+200=0.
k0ka [10]

Answer:

x = -2+2i ,x = -2-2i

Step-by-step explanation:

given,

equation 25x²+100x+200=0

dividing the equation by 25 on both side

x²+4x+8=0

using

x = \dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

x = \dfrac{-4\pm \sqrt{4^2-4\times 1\times 8}}{2}

x = \dfrac{-4+ \sqrt{4^2-4\times 1\times 8}}{2},x = \dfrac{-4-\sqrt{4^2-4\times 1\times 8}}{2}

x = \dfrac{-4+ \sqrt{-16}}{2},x = \dfrac{-4-\sqrt{-16}}{2}

x = \dfrac{-4+ 4i}{2},x = \dfrac{-4-4i}{2}

x = -2+2i ,x = -2-2i

6 0
3 years ago
What is 428.2 in word form
Sergeeva-Olga [200]

Answer:

four hundred twenty eight and two tenths

Hope this helps

-Amelia

5 0
3 years ago
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