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Chapter 1 test - Review Question #13 of 28 13. A chemist wants to mix a 60% alcohol solution with 9 liters of a 66% alcohol solution to produce a solution that is 62% alcohol. How many liters of the 60% alcohol solution should be used? Answer = liters

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Cars arriving for gasoline at a Shell station follow a Poisson distribution with a mean of 10 per hour. A. Determine the probability that over the next hour, only one car will arrive. Probability = ◻ B. Compute the probability that in the next 5 hours, more than 25 cars will arrive. Probability = ◻

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This young hippopotamus used to weigh $ 245 \mathrm{~kg} $. His weight has increased by $ 20 \% $. How many kilograms $ (\mathrm{kg}) $ does he now weigh?

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Q2. To prevent water pressure from pushing gate AB open, a small extension, or lip, is provided at A. If the gate is 4m wide (measured perpendicular to the plane of the figure), determine the force acting on the lip. The density of water is $10^3$ kg/m$^3$. Take $g = 9.81$ m/s$^2$. The area moment of inertia of a rectangle of width $b$ (perpendicular to the plane of the paper) and length $l$ is $I = \frac{bl^3}{12}$. See figure A.1 in the appendix of your textbook.

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Give an example that explains how the procurement process is essential for organizations to create and deliver products and/or services to their customers.

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Judy currently earns a bi-weekly salary of $1,250.00, and the federal and Alberta TD1s on file show claim codes of 2. The union recently negotiated a new contract, and Judy's salary has been increased to $1,300.00. There has been a lapse of 5 pay periods since the increase should have taken effect. Calculate Judy's income tax for both the regular payment and the retroactive increase. This will be paid on one check.

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Polynomial codes are typically used for the detection of transmission errors in computer networks. Consider a polynomial code which is based on the CRC-12 generator polynomial G(X) = X12 + X11 + X3 + X2 + X + 1 . a) Given the message polynomial M(X) = X15 + X12 + X11 + X10 + X7 + X5 + X + 1, compute the corresponding valid code polynomial T(X). b) What error patterns can be detected by this generator polynomial, and what fraction of errors can be detected by this generator polynomial?

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5. x + y + z = 90 10x + 10y + z = 0 x - 9y + z = 190

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Suppose Z varies directly as x and Z(x) is 119 when x = 6. Write a complete statement for the function Z.

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A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below: Spinner Results Color Frequency Red 7 Blue 15 Green 6 Yellow 5 Purple 8 Based on these results, express the probability that the next spin will land on purple as a decimal to the nearest hundredth.

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