An engineering construction firm is currently working on power plants at three different sites. Let ai denote the event that the plant at site i is completed by the contract date. Use the operations of union, intersection, and complementation to describe each of the following events in terms of a1, a2, and a3, draw a venn diagram, and shade the region corresponding to each one.

Jane has 3 applesshe gives away 23 - 2 = 1jane has 1 apple lefthope this

B.  earth orbits at a slower rate than the rate at which the moon orbits earth.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.

Iwill need a picture or a question so i can !