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Nookie1986 [14]
3 years ago
15

Please help me please!!!!!

Mathematics
1 answer:
kvasek [131]3 years ago
6 0
Since PQ is tangent to the circle, angle PQO is 90°.

Since the sum of angles of any triangle must be 180° we can say:

180-90-12=x  thus:

x=78°
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Aloha, thanks for using Brainly.

Step-by-step explanation:

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Gnoma [55]
40x+8x^2=0 can be solved for x (there are two solutions):

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Be certain to check these results.  substitute x = -5 into 40x+8x^2=0.  Is the resulting equation true or false?  Next, subs. x=-5 into 40x+8x^2=0.  Is the resulting equation true or false?
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