Jiao walks in wearing a T-shirt, which is what she always wears when it's sunny. The probability she'd be wearing a T-shirt if it's sunny out is almost 100%. But there's only about a 50% probability that she'd be wearing a T-shirt if it's not sunny out. Which piece of evidence that it's sunny is stronger, and why

How is working backward similar to solving an equation?

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.