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solmaris [256]
3 years ago
9

How do i find the unknown side length of #9?

Mathematics
1 answer:
Natali5045456 [20]3 years ago
4 0
You can find the unknown side length by using pythagorean theorem. a²+b²=c²
Simply plug-in numbers into the formula. Your answer is 80.
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5 0
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fomenos

Answer:

A= 150°

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Step-by-step explanation:

Since a line is 180°, you can write an equation for C. C+30°=180° , from here use algebra to find C. The value of C will be 150°. When the value of C is 150° , since they're supplementary angles, the value of A will also be 150°.

Important thing to note:

The value of all these angles combined together is 360°.

5 0
2 years ago
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Answer:

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\displaystyle \frac{(-7)-6}{4-(-6)}=\frac{-13}{10}=\boxed{-\frac{13}{10}}

Therefore, the correct answer is -13/10.

6 0
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