Determine if 0.7777777777777777... is rational or irrational and give a reason for your answer.
and
it is a decimal that terminates
it is the square root of a perfect square
it is a decimal that repeats
it is the square root of a non-perfect square
it is a decimal that does not repeat or terminate

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?

Let event a = you roll an even number on the first cube.let event b = you roll a 6 on the second cube.are the events independent or dependent? why?

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is