Numerade

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A bolt manufacturer is very concerned about the consistency with which his machines produce bolts. The bolts should be 0.24 centimeters in diameter. The variance of the bolts should be 0.015. A random sample of 25 bolts has an average diameter of 0.23cm with a standard deviation of 0.1898. Can the manufacturer conclude that the bolts vary by more than the required variance at α=0.01 level? Step 4 of 5: Make the decision.

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Given a starting principal of $20000, and a nominal interest rate of 4.5% compounded daily (ie: compounded on each calendar day), determine the accumulated amount after a term of 14 years. Round your answer to the nearest dollar. Accumulated Amount = \$

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A well-mixed lake has five streams flowing in and one flowing out -- see data below. The data are from several different sources, so you have to deal with several different types of units. Inputs: Stream 1: A solution with 6 ppm Ca+2 and 0.02 mM Cl- with a flow rate of 4 x 10^7 liters yr^-1 Stream 2: A solution with no measurable Ca+2 or Cl- with a flow rate of 9 x 10^8 liters yr^-1 Stream 3: A solution with 0.4 mM Ca+2 and 0.3 mM Cl- with a flow rate of 10 x 10^7 liters yr^-1 Stream 4: A solution with 200 M Ca+2 and 8 ppm Cl- with a flow rate of 1.7 x 10^10 kg yr^-1 Stream 5: A solution with 15 ppm Ca+2 and 140 M Cl- with a flow rate of 1 x 10^9 kg yr^-1 Volume of the Lake: 450 km^3 Output: Stream 6: A solution with 0.35 mM Ca+2 and 0.50 mM Cl- with a flow rate of 13 x 10^8 liters yr^-1 Assume all solutions are dilute (density of pure water) and that the lake is well mixed. Fill in the table below for flow rate, Ca+2, and Cl- based on the requested units. Use scientific notation to express your answers. Significant figures will not be graded in this table. Don't forget to leave extra sig figs in earlier stages of calculations and to wait until your final answer in the later questions based on data from this table to round to the appropriate significant figures. Water flux Ca+2 (M) (X/T) Ca+2 flux (mol/yr) Cl- flux (mol/yr) Stream Cl- (M) 1 2 3 4 5 6 Total inputs X X Total outputs X X

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[30 pt] Compound A diffuses through a 4-cm-long tube and reacts as it diffuses. The equation governing diffusion with reaction is, for concentration given by A: $D \frac{d^2A}{dx^2} - kA^2 = 0$ At one end of the tube (x=0), there is a large source of A that results in a fixed concentration of 0.1 M. The other end of the tube is impenetrable to species A, so the boundary condition is dA/dx = 0 at x = L = 4 cm. Using the finite difference method with 20 even intervals, calculate A as a function of distance in the tube. Solve the equation in the form $MA - \Phi = b$ where M is a constant coefficient matrix, F contains the nonlinearity of the system, and b is a vector of constants. For the calculation, use k = 5 x 10$^{-6}$ L mol$^{-1}$ s$^{-1}$ and D = 10 x 10$^{-6}$ cm$^2$/s

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Find the average power generated by the source. Show all work.

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QUESTION 3 You know that the company's FCF next year will be $ 10 M and is expected to grow at 3% every year. What is the current Enterprise Value for Coca-cola? Put answer in $millions. (For example, if the answer is 1M, put 1, not 1,000,000)

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Please solve the following question, all parts. Consider the signal x(t) where x(t) = r(t) for t < 0 a) Find the value of x(t) at t = 0. b) Find the value of x(t) at t = 1. c) Using these values of a, determine the spectrum of x(t). Sketch the spectrum of x(t).

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Explain the contingent story for how the Federal Reserve's recent increases in U.S. short-term interest rates could lead to either a further rise or a pending fall in the value of the U.S. dollar relative to other global currencies. Give at least two explanations.

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List four factors, in the mid to late 19th Century, that contributed to the emergence and popularity of modern sports and sports spectatorship.

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Texts: Manufacturer (mid: integer, name: string, address: string) Product (pid: integer, pname: string, color: string, country: string) Make (mid: integer, pid: integer, cost: real) The Make relation lists the prices charged for products by Manufacturers. For every manufacturer that only manufactures products from Germany, write an SQL query to print the name of the manufacturer and the total number of products they manufacture.

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