Numerade

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Develop your own cladogram using the alien species found on the next slide. Your tree must be logical and MUST include the following: a. A minimum of 5 organisms, including an outgroup b. A minimum of 5 traits Recode the characters as ancestral or derived ( 0 or 1 ). The outgroup will receive all, or almost all, 0 's. Any character the same as the outgroup's character also received a 0; otherwise, it receives a 1. Total the number of characteristics in each column

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Use the given inverse of the coefficient matrix to solve the following system. $$5x_1 + 3x_2 = -9$$ $$-6x_1 - 3x_2 = 2$$ $$A^{-1} = \begin{bmatrix} -1 & -1 \\ 2 & \frac{5}{3} \end{bmatrix}$$

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Suppose the real rate is 8 percent and the inflation rate is 2 percent. What rate would you expect to see on a Treasury bill

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Latent inhibition refers to which phenomenon? Group of answer choices Repeated presentation of a neutral stimulus impairs its later ability to elicit a conditioned response The resurfacing of a response previously believed to have been unlearned The gradual deterioration of conditioned responses Learned helplessness

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Which type of population distribution does this population most likely show? These are Nesting Australasian gannets at the Muriwai colony in New Zealand. Group of answer choices Uniform Random Clumped

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Questions 21-27 are based on the following information. Three friends, Tom and Josh, are discussing their investments. - Tom has a total of $50,000 available for investment, and decides to invest in an efficient portfolio. He first borrows another $20,000 and invests a total of $70,000 in the market portfolio. - Josh has invested $30,000 in Norman Harvey Holdings Ltd and $20,000 in BJ Hi-Fi Ltd. The correlation between Norman Harvey and BJ Hi-Fi is 0.7. The following table shows the expected return, standard deviation and beta of Josh's stocks, the market portfolio and the risk-free asset. Asset Exp Return Std Dev Beta Norman Harvey Holdings Ltd 18.1% 15.3% 1.3 BJ Hi-Fi Ltd 12.2% 9.9% 0.85 Market portfolio 7.7% 9.2% 1 Risk-free asset 2.8% 0% 0 What is the expected return on Tom's portfolio?

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Solve 3x^(2) + 2 x = -1. If the solutions are complex, write in standard a + b ⅈ form

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Problem #4: For a Triprotic Acid, the pH at the first equivalence point is NOT dependent on the concentration. There are two equilibriums involved, write them: 1) 2) (There is a proof, research it) You can calculate the pH by taking the average of pKa1 and pKa2. $pH = \frac{(pKa_1 + pKa_2)}{2}$ Complete the following Table to obtain a summary of various points in the titration of a Triprotic Acid and the resulting pH at that point. Point in the titration of $H_3A$ Major ions present in the aqueous solution $H_3A$ pH is calculated by Use $K_{a1}$ and an ICE table No Base added Before the first equivalence point At the first equivalence point Between the 1$^{st}$ and 2$^{nd}$ equivalence points At the 2$^{nd}$ equivalence point Between the 2$^{nd}$ and 3$^{rd}$ equivalence points At the 3$^{rd}$ equivalence point Past the third equivalence point $A^{3-}, OH^-$ $pH = \frac{(pKa_1 + pKa_2)}{2}$

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The following voltaic cell has been constructed: Zn | Zn$^{2+}$ (0.02 M) || I$_3^-$ (0.75 M), I$^-$ (0.02 M) | Pt The half-reactions and reduction potentials are: I$_3^-$ + 2e$^-$ --> 3I$^-$ +0.563 V Zn$^{2+}$ + 2e$^-$ --> Zn(s) -0.763 V What is the cell potential (E$_{cell}$) for the voltaic cell as written? 1.523 V 1.129 V 1.458 V 1.721 V

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A team of dogs accelerates a 100 kg dogsled from 0 to 5.0 m/s in 3.0 s. To answer the following questions you can assume that the acceleration of the sled is constant and neglect any friction between the sled and snow. a) What is the magnitude of the force exerted by the dogs on the sled? b) What is the work done by the dogs on the sled in the 3.0 s ? c) What is the instantaneous power of the dogs at the end of the 3.0 s? d) What is their instantaneous power at $t = 1.5$ s?

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juan c.