Given a right circular cone, a plane that intersects the cone (not at the vertex) and is parallel to its edge will always result in a parabola, regardless of the shaper of the cone. Is this true or false?

What is the size of the matrix resulting from

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

3.4a=57.8 what is the the value of a