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Rudiy27
3 years ago
14

Please help with this im really confused and please explain abit with words. please and thanks!

Mathematics
1 answer:
Hatshy [7]3 years ago
5 0

Step-by-step explanation:

just add all the given angles and equate it with 540° and then find x

x/2 + x/2 + x - 25 + 100 + x - 15 = 540°

3x + 60 = 540°

3x = 540 - 60

x = 480/3

x = 160°

on checking, the given shape values of x-25 and x - 15 are both still obtuse angles thus the answer is correct.

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Find the roots. 2x 2 + 7x - 15 =0
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So you always want to pull out the gcf first but since there isn't one, we can move on.
so we can make an acb chart which is multiplying the a value and the c value and find factors that of that product that will equal the b value.
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c value is -15
b value is 7
-30 factors to equal 7 = 10, -3
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Answer:

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Step-by-step explanation:

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