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Problem 7: Some of the dust storms on Mars result in very large optical depths. If, as measured by some robotic craft on the surface of Mars, $\tau \approx 9$ during a storm, what percent of the incoming light from the Sun actually reaches the surface of Mars? You may assume that the atmosphere has constant density of dust and other particles.

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How does workplace stress, especially in the Indian IT sector, affect mental health and work-life balance?

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Enrico is a addicted to illegal drugs which one of the following services would he require

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In the market for strawberries, the equilibrium price decreased and the equilibrium quantity decreased

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proteins that contain a zinc finger motif share what function? protease DNase RNase Transcription factor

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The formula $S = C(1+r)^t$ models inflation, where $C$ = the value today, $r$ = the annual inflation rate (in decimal form), and $S$ = the inflated value $t$ years from now. If the inflation rate is 3%, how much will a house now worth $57,000 be worth in 5 years? Round your answer to the nearest dollar. The house will be worth $ (Round to the nearest dollar as needed.)

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d. Mg Write the balanced equation for the reaction between permanganate and oxalic acid

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b) longer than the conventional payback period c) the same as the conventional payback period d) no way to know Problem G: 19) How many years will it take for your investment of $1,000 to grow by a factor of 5 given that the annual interest rate is 10%? a) 5.6 years b) 12.0 years c) 16.9 year d) 22.5 years Problem H: 20) What is the capital recovery cost for a machine that costs $20,000, has a service life of 4 years? Assume an interest

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Given the retrieval example in the slides which we reviewed in class, tf-idf example: Inc.Itc. Document: car insurance auto insurance. Query: best car insurance. Term Query Document Pro tf- tf-wt dp idf wt n'liz tf-wt wt n'liz raw e e auto 0 0 5000 2.3 0 0 1 1 1 0.52 0 best 1 50000 1.3 1.3 0.34 0 0 0 0 0 car 1 1 10000 2.0 2.0 0.52 1 1 0.52 0.27 insurance 7 1000 3.0 3.0 0.78 2 1.3 1.3 0.68 0.53. Exercise: What is N, the number of docs? Doc length = 1 + 0 + 1 + 1.31.92. Score = 0 + 0 + 0.27 + 0.53 = 0.8. d1 (already done) car insurance auto insurance. d2 (new doc) car auto insurance auto. d3 (new doc) car car auto insurance car. Compare the scores between the three documents, then normalize the results. 2. Repeat for all three docs for the Jaccard coefficient, then normalize the results. 3. This question will illustrate the difference between using Euclidean distances between the query and the documents versus using vector dot product between the query and the documents. Suppose we have the following documents and query: query vocabulary d1 d2 d3 3 1 2 car auto insurance 1 0 1 200 0 200 3000 0 3000 a) Find the similarity scores using 1 + log(tf) only using unit vector dot products between the documents and the query. b) Find a score for all three documents based upon the distance. Use the equation distance = sqrt(qt1-dt1**2 + qt2-dt2**2 + qt3-dt3**2) and use the distances as the score for all three documents (** means squared). t is the term entry.

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determined with the information provided 17. The slope of the given function is 1000p 18. What is the equilibrium price and equilibrium quantity? a. $300; 10,000 b. $3; 7000 c. $200; 1000 d. $2; 700 19. What do you think would happen to the price of hot dogs if quantity demanded is less than quantity supplied? a. the price will increase b. the price will stay the same a. 8 b. $-1/4$ c. $1/8$ d. 0 c. the price will increase and then decrease d. the price will decrease e. cannot be determined with the information given Screens 9-10 of 13

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amparo s.