in this picture lines AB and CD are parallel. Find the measures of the following angles. Explain your reasoning.

a. <BCD = 38 degrees, b. <ECF = 38 degrees, c. <DCF = 142 degrees

Step-by-step explanation: <BCD is 38 degrees because if ABC is 38 then BCD is 38. <ECF is also 38 degrees because it is a vertical angle to <BCD and <BCD is 38 degrees. Since there is a straight line it equals 180 degrees. And since <ECF is 38 degrees we subtract 38 from 180 to get 142 degrees. <DCF = 142 degrees

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.