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DIFFERENTIAL EQUATIONS-NEXTGEN WILEYPLUS
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- Problem 3 When a red blood cell is pumped it moves a distance s (in millimetres), in a given time, t, (in seconds) described by the following equation: s = 0.005t2 + vot In this equation, vo is the initial velocity, in mm s-1. Distance is measured in millimetres and time is measured in seconds. Use the equation to find how long it takes a red blood cell to travel a distance of 1000 mm. The cell had an initial velocity of 4 mm s1. -btV62 -4ac x = 2a (quadratic formula) To use the quadratic formula, the equation needs to be in form at? + bt +carrow_forward1.- Solve S² (4-x-y) dxdyarrow_forwardDiscuss whether a solution exist for this problem.arrow_forward
- I need to solve for question number 21.arrow_forwardProblem 8. Water flows into a tank at 6t2 + 1 gallons per minute for 0 < t< 2, with t in minutes. If the tank held 32 gallons when t water, in gallons, was in the tank when t = 1? 2, how mucharrow_forwardConsider the following equation. 3 12t- 6t2 dt = 0 One solution to the equation is x = 3. The other solution is x = Enter an exact number only.arrow_forward
- If e =5 and y = 7, what is the value of 2x - y 18 /1arrow_forwardLet us revisit a question from a few problem sets ago with slightly different numbers. A patient takes 200 mg of an antibiotic every 6 hours. The half-life of the drug (the time it takes for half of the drug to be eliminated from the blood) is 6 hours. Let dn denote the amount (in mg) of medication in the bloodstream after n doses, where d₁= 200. 1. Explain why dn+1 = 0.5dn + 200, d₁= 200 is the correct recurrence relation. 2. Use the recurrence relation to write down the expressions for d2, d3, and d4. Do not simplify- instead, keep powers of 0.5 in your answers. 3. You should see that each dn is a geometric sum. We are interested in finding the long-term (steady state) amount of antibiotic in your blood, i.e., limno dn. Write this limit as an infinite series using summation (E) notation. 4. Evaluate the geometric series from the previous part using the geometric series formula. 5. Previously we used the recurrence relation dn+1 = 0.5dn + 200, d₁ = 200 and the assumption that dn→ L to…arrow_forwardIn each of Problems 25 through 31: (a) Find an integrating factor and solve the given equation. (b) Use a computer to draw several integral curves.arrow_forward
- PROBLEM 2: The profit of a company is given by the function below, where P is the profit and n is the number of sales. Calculate the percent change in profit as sales increase from 115 to 120 units using differentials. P = 100xe¬x/400arrow_forwardI think you made a mistake. Why did you substitute v for h in step two if you had already said v was equal to h'? If we "Substitute the second equation into the first equation to eliminate h' " we are still left with 120h....arrow_forwardHelp me solve thisarrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage