Han and tyler are each completing homework online. Their progress bars are shown below. Han is doing the assignment on his iphone, while Tyler is using an ipad. Tyler says, “The arc length on my progress bar measures 4.75 cm and Han’s is 2.25cm, so I’ve done more work than him.

Which is the graph of the piecewise function f(x)? f(x)=[tex]f(x) = \left \{ {{-x+1, x\leq 0 } \atop {x+1, x\ \textgreater \ 0}} \right.[/tex]

If you are dealt 4 cards from a shuffled deck of 52? cards, find the probability that all 4 cards are diamondsdiamonds.

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.