PreCalc ... need help fast
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A wave is described by the equation y = (4.5×10−2) sin (1.9x − 3.2t), where lengths are measured in meters and time in seconds. What is the displacement of a particle at position x = 2.7 m at time t = 5.8 s? Note: Remember
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A sine wave is traveling to the right on a cord. The lighter line in the figure represents the shape of the cord at time t = 0; the darker line represents the shape of the cord at time t = 0.10 s. (Note that the horizontal and
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When finding an equation of a sine and cosine graph can I use any of the three coordinates (that have the same y value ) to substitute for h and k? Is there a designated one?
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A plane progressive wave is represented by the wave equation: y=0.1sin(200 ðt20ðx/17) Where y is in millimetres, t is in seconds, and x is the distance from a fixed origin, O, in metres. Find: The frequency of the wave The
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During a 12hour period, the tides in one area of the Bay of Fundy cause the water level to rise to 6 m above average sea level and to fall 6 m below average sea level. The depth of the water at low tide is 2 m as measured against
asked by Sean on July 12, 2011 
trig
During a 12hour period, the tides in one area of the Bay of Fundy cause the water level to rise to 6 m above average sea level and to fall 6 m below average sea level. The depth of the water at low tide is 2 m as measured against
asked by Sean on July 13, 2011 
PreCalc
y =( (CA)/2 ) sin( (X  (A  ( (C  A)/2 ) ) )( pi/(CA) ) ) + (B  ( (BD)/2 ) How do I rearange this for this equation for the all of the variables including A, B, C, D, X were pi is the greek leter pi if you didn't notice this
asked by Jo on December 7, 2009