Answer: -3
Step-by-step explanation:
Since AB and BC are congruent, ABE is equivalent to CBE. ABE+CBE=ABC. So the answer would be 80 degrees.
Answer:
Step-by-step explanation:
Answer:
Independent.
Step-by-step explanation:
Independent events:
Two events, A and B, are said to be independent if the probability of both happening is the same as the multiplication of the probabilities of each happening, that is:

Thus, P(A and B)=P(A)•P(B) is used when two events are independent.