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Answer: angle 1=129 degrees
Step-by-step explanation:
180 - 99 - 30 = 51
all the angles of a triangle should add up to be 180 degrees
51+99+30=180
angle 1 is supplementary to the angle that is 51 degrees so it would be 129 degrees. 180-51=129
Answer:
Step-by-step explanation
First, let's remember the equation for point-slope form and how to find the 'm' value:

Now plug your m value and (x1, y1) into point-slope form:

No because 2/5 equals 4/10, which is .4, not .25 :)