3 years ago

Someone, please help me!! I don't understand

1 answer:

7 0

All triangle equal 180 degrees so add the 53 and 90 and it’s 90 because it’s a right triangle 53+90= 143 then subtract 143 from 190 so 190- 143= 47 so the missing degree is 47

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sergiy2304 [10]

Answer:

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Step-by-step explanation:

In order for $x=-2$ to be a solution, the result after substituting must be 0:

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