Countable and uncountable sets: a. show that if a is countably infinite, then a x a is countably infinite. b. is the set of all bit strings of finite length countable or uncountable? if countable, show how you would enumerate the set. if uncountable, give a proof by diagonalization. c. is the set of all bit strings of infinite length countable or uncountable? if countable, show how you would enumerate the set. if uncountable, give a proof by diagonalization.

What expression is equivalent to 42x-56y

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct