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Solve the Problem tt Units Are Sold t>0t > 0 , Is Given By

Question 29

Multiple Choice

Solve the problem.
-The profit made when tt units are sold, t>0t > 0 , is given by P=t2−30t+209P = t ^ { 2 } - 30 t + 209 . Determine the number of units to be sold in order for P=0P = 0 (the break- even point) .


A) t>11t > 11
B) t=−11t = - 11 or t=−19t = - 19
C) t=30t = 30
D) t=11t = 11 or t=19t = 19

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