SOLUTION: A train travels from station A to station B. The distance between the two stations is defined by the function 𝑑(𝑥) = 𝑥4 + 𝑥3+ 3𝑥2 + 4𝑥 − 𝑥 kilometers. If the

Question 1167400: A train travels from station A to station B. The distance between the two stations is defined by the function 𝑑(𝑥) = 𝑥4 + 𝑥3+ 3𝑥2 + 4𝑥 − 𝑥 kilometers. If the train travels from station A to B for 𝑡(𝑥) = 𝑥 hours without stopping at any station, do you think if the speed of this train will be 45 km/h, will it arrive on its destination for only 2 hours? If yes, how do you say so? If no, what do you think will be its estimated speed to arrive in time? Explain briefly. (hint* speed= distance/time)
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
The equation 𝑑(𝑥) = 𝑥^4 + 𝑥^3+ 3𝑥^2 + 4𝑥 − 𝑥 kilometers, shouldn't the last term -x be a number??
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