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You and a friend race across a field to a fence and back. your friend has a 50-meter head start. the equations shown represent you and your friend's distances dd (in meters) from the fence tt seconds after the race begins. find the time at which you catch up to your friend. you: d=∣−5t+100∣d=∣−5t+100∣ your friend: d=∣−313t+50∣∣

Asinusoidal function whose frequency is 1/6pi

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.