40) Start at -2. Add 12. My answer is 10

Did I do that correctly is the answer correct

Yes that is correct

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last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

ummm seems that u didnt post the attachement !