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A freight train leaves the train station 1 hour before a passenger train. The two trains are traveling in the same direction on parallel tracks. If the rate of the passenger train is 5 mph faster than the freight train, how fast is each train traveling if the passenger train pases the freight train in 11 hours?
In a simple graph, must every vertex have degree that is less than the number of vertices in the graph? Why?
(a) Write an equation in x and y for the number of gallons of gas sold. (b) Write an equation in x and y for the amount of money received.
for the remaining 30% you choose randomly among the 5 answers. What percent of the answers should you expect to get right?
differential equations1 compute y and y and then combine these derivatives with y as a linear second-order differential
Important information about Mixture, A tank contains 1320L of pure water.A solution that contains .o1kg of sugar per liter enters a tank at the rate 3L/min
Determine the radius of convergence of the power series n=1Σ∞ (-1)n (3n / n4n) xn. Show that the power series converges for x = 4/3. Determine the sum of the power series =1Σ∞ n(n - 1)(-3/4)n.
Which country seems to have a more unequal distribution of income? For data, consult the World Bank's World Development Indicators online database or the CIA's World Factbook, also available online. Note which data source you used.
Formulate the above as linear programming problem. Solve (a) by graphical method. Solve using simplex method.
If the perimeter fence costs $5 per yard and the fence down the middle costs $3 per yard, determine the dimensions of the corral so that the fencing cost will be as small as possible.
Fenton and Farrah Friendly, husband-and-wife car dealers, are soon going to open a new dealership
An urn has 11 balls that are identical except that 2 are white, 4 are red, and 5 are blue. A sample of 2 is selected at random. Use exact fractions or round to at least 4 decimal places for your answers.
mathematical problem solvingthe goal of any mathematics course is to introduce you to a variety of methods used to
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