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rocio hart

rocio h.

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Multiple Answer 5 points Which of the following are used chemist in a forensiclab? (check all that apply) Optic gel plates \( X \)-ray HPLC Optical analysis Projector determation analysis Gas chromatography Mass spectrometer

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Determine whether the given vectors are linearly dependent or independent. (a) $v_1 = (4, 2, -2)^T$, $v_2 = (5, 4, -3)^T$, $v_3 = (4, 5, 6)^T$ (b) $v_1 = (1, 0, 3, 0)^T$, $v_2 = (0, 2, 0, 4)^T$, and $v_3 = (1, 2, 3, 4)^T$.

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Is the group "invertebrates" a valid monophyletic group? Yes, because only vertebrates are deuterostomes. Yes, because it includes all organisms without backbones. No, because the common ancestor to all the invertebrates is also an ancestor of the vertebrates. No, because most animals are vertebrates.

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Which of the following statistics is most resistant to the inclusion of outliers in a data set? mean median variance standard deviation

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Question 14 At the optimum combination of two inputs... 3 pts a) Cost are minimized for the production of a given output. b) The marginal rate of technical substitution equals the ratio of the input prices. c) The slopes of the isoquant and isocost curves are equal. d) Profit is maximized e) All of the above

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Text: Need Help on A, B, C, D Thanks! Homework: Chapter 2 Homework Save Score: 0.2 of 1 pt 2 of 4 (4 complete) HW Score: 80%, 3.2 of 4 pts %) P2-2 (similar to) * Transaction costs In late December, you decide for tax purposes to sell a losing position that you hold in Twitter, which is listed on the NYSE, so that you can capture the loss and use it to offset some capital gains, thus reducing your taxes for the current year. However, since you still believe that Twitter is a good long-term investment, you immediately sell your 1,100 shares of Twitter and then in early February buy them back. Charles Schwab charges a commission of $4.95 for online stock trades, and for broker-assisted trades, there is an additional $25 service charge, so the total commission is $29.95. a. Suppose that your total transaction costs for selling the 1,100 shares of Twitter in December were $59.95. What was the bid/ask spread for Twitter at the time your trade was executed? b. Given that Twitter is listed on the NYSE, do your total transaction costs for December seem reasonable? Explain why or why not. c. When your February statement arrives in the mail, you see that your total transaction costs for buying the 1,100 shares of Twitter were $47.95. What was the bid/ask spread for Twitter at the time your trade was executed? d. What are your total round-trip transaction costs for both selling and buying the shares, and what could you have done differently to reduce the total costs? a. The bid/ask spread for Twitter, at the time your trade was executed, is $0.27. (Round to the nearest cent.) Enter your answer in the answer box and then click Check Answer.

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The Board of Directors has been presented with the plan for the following year and there is a substantial negative cash flow situation projected. What are the considerations that should be raised by Board members?

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Moving to another question will save this response. Question 4 Question 4 of 6 1 points Air has a flow rate of 5.835 Kg/hr and contains ethanol of mass fraction 0.22. The ethanol is recovered by absorption in a tower by using 2,079 Kg/hr of fresh water. If the exit mass fraction of ethanol in air is 0.01, calculate the concentration of ethanol in exit water in mass fraction. Moving to another question will save this response. Question 4 of 6

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Compute the closed form for each of the following. Write each as a number or a polynomial in $n$. Note that the closed form solution of each will not have a summation in it. For example, the closed form for $\sum_{i=1}^n i$ is $\frac{1}{2}n^2 + \frac{1}{2}n$. Also, be sure to expand your polynomials. For example, $\sum_{i=1}^n i$ should be written as $\frac{1}{2}n^2 + \frac{1}{2}n$ and not as $\frac{1}{2}n(n+1)$. Be sure to show your work. (a) $\sum_{i=25}^n 5$, where $n$ is a positive integer whose value is at least 25. (b) $\sum_{i=1}^n 6(i+3)$ (c) $\sum_{i=1}^n (3i^2 + 2i - 4)$ (d) $\sum_{j=33}^{57} 31$ (e) $\sum_{j=1}^n (2j^2 - n + 3)$ (f) $\sum_{i=1}^n \sum_{j=1}^i (i+j)$ (g) $\sum_{i=1}^n \sum_{j=1}^n \sum_{k=1}^n (3i - 1)$ (h) $\sum_{i=1}^n \sum_{j=i}^n 2j$

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Enter size of the first array: 0 Enter size of the second array: 0 The union is: {} Enter size of the first array: 5 Enter 5 distinct elements of the first array: Enter element a: index#0: 1.0 Enter element as index#1: 5.0 Enter element ac index#2: 3.0 Enter element at index 3: 12.0 Enter element at index#4: 7.5 Enter size of the second array: 4 Enter 4 distinct elements of the second array: Enter element, as index#0: 12.0 Enter element at index#1: 5.0 Enter element ac index#2: 20.0 Enter element. at index#3: 45.5 The union is: {1.00 5.00 3.00 12.00 7.50 20.00 45.50 } Enter size of the first array: 0 Enter size of the second array: 4 Enter 4 distinct elements of the second array: Enter element at index#20: 12 Enter element at index#13: 7.0 Enter element at index#2: 3.5 Enter element at index#3: 10.0 The union is: {12.00 7.00 3.50 10.00 } Enter size of the first array: 3 Enter 3 distinct elements of the first array: Enter element at index%30: 6.0 Enter element at index#13: 2.0 Enter element at index%2: 4.0 Enter size of the second array: 3 Enter 3 distinct elements of the second array: Enter element at index#30: 4.0 Enter element at index#13: 6.0 Enter element at index#2: 2.0 The union is: {6.00 2.00 4.00 }

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