A maxm speed of 55 mph means that the speed has to be lexx than or equal to 55
x <= 55
The mass of the first shipment at time t is

The mass of the second shipment at time t is

At time t, the ratio of m₁ to m₂ is

Therefore as a percentage,

Answer: B. 81.2%
Answer: v(t)= 2(t-3)^2-32
-32 thousand dollars
Step-by-step explanation:
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