Numerade

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Suppose the coworker weighs 980.0 N . If the lift is being made at constant speed, what is the Up-Down component of the contact force on the coworker by the ground on which he is standing? Let Up be positive.

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c. If car imports are banned, Chinese car producers will better off and Chinese car consumers will be worse off. A polygon in the figure shows the surplus that will shift fror consumers to producers. Which area(s) would represent this "transfer"? B C D E F G

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A solid 1.250 in. diameter shaft is subjected to a torque of T = 280 lb ft and an axial load P acting as shown in the figure. If the largest tensile normal stress in the shaft must be limited to 10500 psi, what is the largest load P that can be applied to the shaft? y T H (1) B P

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A three-phase induction motor develops 32 kW when running at 88 percent efficiency at a power factor of 0,7 lagging. Calculate the readings on each of the two wattmeters connected to indicate the input powe

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How do we correctly calculate the Stirling number of the second kind for S(9,5)?

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Required Information [The following information applies to the questions displayed below.] Nicole has decided that she is going to start her business, Nicole's Getaway Spa (NGS). A lot has to be done when starting a new business. Here are some transactions that have occurred prior to April 30. a. Received $94,000 cash when issuing 9,400 new common shares. b. Purchased land by paying $6,500 cash and signing a note payable for $10,500 due in three years. c. Hired a new aesthetician for a salary of $2,400 a month, starting next month. d. NGS purchased a company car for $32,000 cash (list price of $35,000) to assist in running errands for the business. e. Bought and received $850 in supplies for the spa on credit. f. Paid $210 of the amount owed in (e). g. Nicole sold 100 of her own personal shares to Raea Gooding for $900. 3. Prepare a classified balance sheet at April 30 using the information given in the transactions. Include Retained Earnings with a zero balance. NICOLE'S GETAWAY SPA Balance Sheet

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(a) indicate which of the following statements are true and which are false Justify your answer. i. Vc E Z+,3y E Z+ such that x = y+1 ii. 3c e Z+,Vy e Z+ such that c =y+1 iii. 3x E Z+,3y E Z+ such that x= y+1 (b) Given the following argument: " The football game will be cancelled only If it rains " 'it rained, therefore the football game was cancelled" Assume p means " it rains" whereas q means "football game cancelled' i. Translate this argument to a symbolic form. ii. Construct the truth table. iii. Determine if this argument is a valid argument or not. (c) Say whether or not the following argument is a valid argument. Explain your answer. (a) Successful candidates for this job must have either a Master's degree or five years of work experience (b) Johnny has a Master's degree (c)Johnny got the job (d) .:. Johnny does not have five years of work experience d) Let P() and Q() be two predicates and suppose D is the the domain of x. For the statement forms in each pair, determine whether they have the same truth value for every choice of p(), Q() and D, or not. i.3x E D,(P()^Q(x)),and(Sx e D,P(x))^(3x e D,Q(r)) ii.Vx e D,(P()v Q(x)),and(Vx e D,P(x))V(Vx e D,Q(c))

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The accompanying data table shows reaction distances in centimeters for the dominant hand for a random sample of 40 independently chosen college students. Smaller distances indicate quicker reactions. Complete parts (a) through (c) below. Click the icon to view the data table. OA a. Make a graph of the distribution of the sample, and describe its shape. Make a graph of the distribution. For values on the boundary of two bins, place that value into the bin on the left. Choose the correct graph below. Frequency 18 12 6 0 0 6 12 18 24 Distance (cm) Frequency 18 12 6 0 0 6 12 18 24 Distance (cm) The distribution is slightly skewed to the right. b. Find, report, and interpret a 95\% confidence interval for the population mean. The 95\% confidence interval is \boxed{~cm} to \boxed{~cm}. (Round to two decimal places as needed. Use ascending order.) OC Frequency 18 12 6 0 0 6 12 18 24 Distance (cm) Reaction distances (in centimeters) 7.5 8 7 6 3 9 12 13 10 4 9 6 6 6 12.5 14.5 14.5 14 11.5 11.5 12 12.5 9.5 8.5 10.5 10 15 20.5 18.5 2.5 2.5 0.5 5.5 3 2.5 X

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QUESTION 10 What is the total interest paid on a 30-year mortgage for $747,000 if it is charged 8% interest, compounded monthly?

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An investor must choose what proportion of wealth to spend on each of two assets, X and Y, and let w be the proportion of wealth spent on X (so 1 - w is spent on Y). So the return to the chosen portfolio is R = wX + (1-w)Y. The asset returns are random, with E(X) = a, E(Y) = 0.01, and the variance of X is given by the final digit of your Student ID number and the following table: Final digit 0 1 2 3 4 5 6 7 8 9 of ID a 0.06 0.02 0.03 0.04 0.05 0.04 0.03 0.06 0.02 0.06 For instance, if your ID number is 20556897, the final digit is 7 and so from the table a = 0.06 and y = 0.002. i. Find the fraction of the portfolio to be invested in asset X if the investor wishes to maximize the expected return to the portfolio. Explain your answer. ii. Find the fraction of the portfolio to be invested in asset X if the investor wishes to minimize the variance of the return to the portfolio. Explain your answer. iii. If the investor minimizes the portfolio variance, find the expected return for the portfolio.

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jose manuel s.