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Stells [14]
2 years ago
13

PQ and QR are 2 sides of a regular 12-sided polygon.

Mathematics
1 answer:
Natali [406]2 years ago
3 0

Answer:

I think the answer is 150 degrees

all the interior angles of a dodecagon (A twelve sided polygon) is 1800 degrees and 1800 divided by 12 (All the angles) is 150

Sorry if this is wrong I don't really know a lot about dodecagons

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What is the solution of the system? Use the elimination method. 2x+y=206x−5y=12 Enter your answer in the boxes.
astraxan [27]

Answer:

The answer to your question is:   x = 7; y = 6

Step-by-step explanation:

                                             2x+y=20             ( 1 )  Multiply by 5

                                             6x−5y=12            ( 2 )

                               5 (2x+y=20)    = 10x + 5y = 100

                                          10x + 5y = 100

                                            6x − 5y =   12             Eliminate y

                                          16 x        = 112

                                           x = 112 / 16

                                           x = 7

                                 2(7) + y = 20                 Substitution

                                 14 + y = 20

                                 y = 20 - 14

                                 y = 6

7 0
3 years ago
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