You are driving a car away from home. Your velocity (miles per hour) t hours after noon is given by v(t) = - 5t^4+ 41t^3-142t^2 + 170t. At noon you were 160 miles from home. Between 1:00pm and 3:15pm you drove blank miles. (Round answer to nearest tenth.)

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A: If you have any problem let me know here in comment box for this thankyou.

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Estimate of calculation