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The number y (in millions) of VCRs in use in the United States for the years 1990 through 2003 can be modeled by y=-0.17t^2+4.3t+60., where t=0 represents 1990 a. Using your graphing calculator...

At 10:15 am, Snail 1 crossed the 65cm mark with a velocity of 4cm/min. In a great burst of energy, snail 1 raced to the 90 cm mark in 3 minutes. His velocity as he crossed the 90 cm mark was 7 cm/min...

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