Let F be the radial force field F=xi+yj. Find the work done by this force along the following two curves, both which go from (0, 0) to (5, 25). (Compare your answers!) A. If C1C1 is the parabola: x=t, y=t2, 0≤t≤5x=t, y=t2 , 0≤t≤5, then ∫C1F⋅dr=?

B. If C2 is the straight line segment: x=5t2, y=25t2, 0≤t≤1x=5t2,  y=25t2, 0≤t≤1, then ∫C2F⋅dr=?​

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.

Which of the following represents a function? 50 !

The john nash mall used 17,4000 kilowatt hours in may, with a peak load of 92 kilowatts. the demand charge is $5.95 per kilowatt, and the energy charge is $0.08 per kilowatt hour. the fuel adjustment charge is $0.017 per kilowatt hour. what is the total electricity cost for may?