Refer to Problem 77. In getting my swimming pool ready for summer, I usually buy the following supplies. Use rounding to estimate the total cost: 8 boxes of baking soda at 89 cents per box; 20 gallons of bleach at $1.29 for 96 ounces; 8 pounds of chlorine stabilizer at $11.99 for a 4-pound bottle; and four 24-can cases of refreshments at 60 cents per can. 77. One of the most valuable uses of estimation is to roughly keep track of the total cost of items when shopping. Use rounding to estimate the total cost of the following items at a grocery store: 4 cans of green beans at 79 cents each; 8 cups of yogurt at 49 cents each; a 29-ounce steak at $5.80 per pound; 4 energy drinks at $1.29 each; and 100 ounces of mineral water at $3.08 per gallon. ( Hint: You may need to look up conversions for units of weight and volume.)
Refer to Problem 77. In getting my swimming pool ready for summer, I usually buy the following supplies. Use rounding to estimate the total cost: 8 boxes of baking soda at 89 cents per box; 20 gallons of bleach at $1.29 for 96 ounces; 8 pounds of chlorine stabilizer at $11.99 for a 4-pound bottle; and four 24-can cases of refreshments at 60 cents per can. 77. One of the most valuable uses of estimation is to roughly keep track of the total cost of items when shopping. Use rounding to estimate the total cost of the following items at a grocery store: 4 cans of green beans at 79 cents each; 8 cups of yogurt at 49 cents each; a 29-ounce steak at $5.80 per pound; 4 energy drinks at $1.29 each; and 100 ounces of mineral water at $3.08 per gallon. ( Hint: You may need to look up conversions for units of weight and volume.)
Solution Summary: The author estimates the total cost of the items using the round off method.
Refer to Problem 77. In getting my swimming pool ready for summer, I usually buy the following supplies. Use rounding to estimate the total cost: 8 boxes of baking soda at 89 cents per box; 20 gallons of bleach at $1.29 for 96 ounces; 8 pounds of chlorine stabilizer at $11.99 for a 4-pound bottle; and four 24-can cases of refreshments at 60 cents per can.
77. One of the most valuable uses of estimation is to roughly keep track of the total cost of items when shopping. Use rounding to estimate the total cost of the following items at a grocery store: 4 cans of green beans at 79 cents each; 8 cups of yogurt at 49 cents each; a 29-ounce steak at $5.80 per pound; 4 energy drinks at $1.29 each; and 100 ounces of mineral water at $3.08 per gallon. (Hint: You may need to look up conversions for units of weight and volume.)
2. Consider the ODE
u' = ƒ (u) = u² + r
where r is a parameter that can take the values r = −1, −0.5, -0.1, 0.1. For each value of r:
(a) Sketch ƒ(u) = u² + r and determine the equilibrium points.
(b) Draw the phase line.
(d) Determine the stability of the equilibrium points.
(d) Plot the direction field and some sample solutions,i.e., u(t)
(e) Describe how location of the equilibrium points and their stability change as you increase the
parameter r.
(f) Using the matlab program phaseline.m generate a solution for each value of r and the initial
condition u(0) = 0.9. Print and turn in your result for r = −1. Do not forget to add a figure caption.
(g) In the matlab program phaseline.m set the initial condition to u(0) = 1.1 and simulate the ode
over the time interval t = [0, 10] for different values of r. What happens? Why? You do not need to
turn in a plot for (g), just describe what happens.
The following are suggested designs for group sequential studies. Using PROCSEQDESIGN, provide the following for the design O’Brien Fleming and Pocock.• The critical boundary values for each analysis of the data• The expected sample sizes at each interim analysisAssume the standardized Z score method for calculating boundaries.Investigators are evaluating the success rate of a novel drug for treating a certain type ofbacterial wound infection. Since no existing treatment exists, they have planned a one-armstudy. They wish to test whether the success rate of the drug is better than 50%, whichthey have defined as the null success rate. Preliminary testing has estimated the successrate of the drug at 55%. The investigators are eager to get the drug into production andwould like to plan for 9 interim analyses (10 analyzes in total) of the data. Assume thesignificance level is 5% and power is 90%.Besides, draw a combined boundary plot (OBF, POC, and HP)
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.
Solve ANY Optimization Problem in 5 Steps w/ Examples. What are they and How do you solve them?; Author: Ace Tutors;https://www.youtube.com/watch?v=BfOSKc_sncg;License: Standard YouTube License, CC-BY
Types of solution in LPP|Basic|Multiple solution|Unbounded|Infeasible|GTU|Special case of LP problem; Author: Mechanical Engineering Management;https://www.youtube.com/watch?v=F-D2WICq8Sk;License: Standard YouTube License, CC-BY