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Ellen works for a high-speed rail company that wants to develop a new rail line. Ellen's project is to find a train that is the second fastest in the world. The Shinkansen Bullet Train in Japan is reported to go as fast as 320 kilometers per hour. The TGV train in France can reach speeds of 89.44 meters per second. Explain to Ellen how to find what speed her new train must go to be the second fastest in this group. Then, find an appropriate speed for Ellen's train in miles per hour and use the formula distance = speed • time to find how far the train can go in 2.5 hours.
Let S be the conic surface z = 3 sqrt (x^2 + y^2), where z is greater than or equal to 0 and less than or equal to 3. Find (double integral over S) z dS.
total cost of producing x toasters per day is given by C = (1/10xsquared+20x+25)and the selling price for each toaster is (44-1/5x). how many toasters should be produced each day in order to maximize the total profit.
find the eqation ofa parabola whose foci are (5,2)and whose equation of diectrix is 2x+3y=0
sketching the graph of cosecant function and identifying its asymptotes.graph y csc 0.5x pi2 and y cos 0.5x pi2 on
Find the mean and standard deviation of the profit (in dollars) the retailer makes from selling a batch of lightbulbs and find an interval with the property that the retailer
In 1988, the speed of a central processing unit (CPU) of a personal computer was approximately 8 megahertz. In 1996, the speed of a personal computer's CPU was 200 megahertz. What percent increase in speed does this represent?
Explain how regression and analysis can be used to test a Survey?
suppose the manufacturer of advil a common headache remedy recently developed a new formulation of the drug that is
Create an Euler diagram to determine whether the syllogism is valid or invalid: Some nurses are patient.
a plane is flying horizontally at an altitude of 2 mi and a speed of 400 miles per hour passes directly over a stadium. find the rate at which the distance from the plane to the stadium is increasing when the plane is 4 mi away from the station?
How many 3-letter codes can be formed using the letters A,B,C,D and E?
Find the five month moving average
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