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Find the rate of change of total profit, in dollars, with respect to time where R(x)=3x and C(x)=0.03x2+0.5x+80, when x=11 and dxdt=19.
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Box 1: Enter your answer as an integer or decimal number. Examples: 3, -4, 5.5172
Enter DNE for Does Not Exist, oo for Infinity
34.96
Box 2: Select the best answer
dollars per day