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maria davis

maria d.

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Time left 1:37:16 Hide A scientist has isolated a novel, fastidious (difficult to culture) microorganism. Unfortunately, the organism has become contaminated with Mycoplasma spp. Which of the following ingredients is the most likely culprit, and what unique trait of Mycoplasma spp. has facilitated its ability to contaminate that ingredient? Select one: a. 10 mL major metals, sterile, autoclaved b. 1 mL trace metals, sterile, autoclaved c. 1 mL ammonium chloride, sterile, autoclaved d. 1 mL vitamin solution, filter sterilized e. 0.2 mL Acetate (1 M), sterile, autoclaved Clear my choice Next page

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Find: Ch. 18 Synthetic Scheme: identify compounds A-G. $NH_2$ $AlCl_3$ $Cl$ $HNO_3/H_2SO_4$ A B Zn[Hg], HCl $Na_2Cr_2O_7, H_2SO_4, H_2O$ C D NBS, heat $NH_3$ potassium t-butoxide F E $H^+/H_2O$ G

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In Decemeber of 2020, the SEC filed a lawsuit against the company Ripple because the SEC believed that the sales of XRP (Ripple's cryptocurrency) were being sold as unregistered securities. The SEC came after Ripple because they did not get proper approval to be selling the tokens. Ripple was being fined $2 billion, and began to put up a fight. They argued that XRP was not a security, and it was just a cryptocurrency, much like Bitcoin (meaning it is classified as a commodity). Fast forward to July of 2023, where in court, judge Analisa Torres declared XRP not a security. It is a commodity, and because of the ruling, Ripple is forced to pay a fine of $125 million instead of the initial $2 billion. Despite the court ruling in favor of Ripple, the SEC is continuing to go after Ripple, filing an appeal in October of 2024. This legal battle continues to wage on between the 2 parties, and an end is not in sight. *Note that the 125 million dollar fine was because institutional sales were being treated as securities, not sales to retail* Knowing that cryptocurrencies are listed as commodities and are taxed as such, why do you think the SEC has filed an appeal? What do they have to gain? *Note that XRP is the third largest cryptocurrency with 150 billion dollar market cap* If the SEC wins the appeal, what do you think that means for the sale of many other cryptocurrencies?

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Use the following information to answer the last 4 questions. A company wants to figure out the proportion of its batteries that will last more than 5 years. They want a 95% confidence interval with an error bound of 3%. Use the formula to determine the number of samples that need to be taken. $n = \hat{p}\hat{q}(\frac{1.96}{EB})^2$

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is one of the Rs involved in design and implementation of any case-based reasoning (CBR) application. a. Retain b. Reason c. Reserve d. React

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4. (10 pts) Use logarithmic differentiation to find the derivative of the function with respect to \( x \). \[ y=x^{\tan x} \]

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Question 6 Use the following information to calculate pKa, report your findings to 2 significant figures. pH = 8.0 [A-] = 0.615 M [HA] = 0.345 M Question 7 Use the following information to calculate pKa, report your findings to 2 significant figures. pH = 7.0 [A-] = 0.556 M [HA] = 0.444 M

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2) Consider the following list of weak acids $C_6H_5COOH$ $K_a = 6.5 \times 10^{-5}$ $C_6H_5OH$ $K_a = 1.3 \times 10^{-10}$ $HCOOH$ $K_a = 1.7 \times 10^{-4}$ For each of the following questions circle the correct answer. a) The strongest acid $C_6H_5COOH$ $C_6H_5OH$ $HCOOH$ b) The strongest base $C_6H_5COO^-$ $C_6H_5O^-$ $HCOO^-$ 3) For each of the following pairs of substances circle the one that is the stronger acid. You should be able to do this without looking up values for $K_a$ for the acids. a) $H_2S$ $H_2O$ b) $HIO_2$ $HIO_3$ c) $HIO_2$ $HBrO_2$

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blem 5-(30 points) R1 ? L E + C R2 Vs Given: L = 1 H, C = 2 F, R? = 2 ?, R? = 4 ? i?(t) = 2sin(4t + \frac{?}{2}) A V?(t) = 10 cos(40t + \frac{?}{2}) V Express the source in phasor form Find the impedances Clearly show how to find the current through the inductor - equations only - no complex math needed

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Shankar Company uses a perpetual system to record inventory transactions. The company purchases inventory on account on February 2 for $22,000, with terms 2/10, n/30. On February 10, the company pays for the inventory that was purchased on account. Record the inventory purchase on February 2 and the payment on February 10. (If no entry is required for a particular transaction/event, select "No Journal Entry Required" in the first account field.) View transaction list Journal entry worksheet < 1 2 Record the purchase of inventory on account. Note: Enter debits before credits. Date February 02 General Journal Debit Credit Record entry Clear entry View general journal >

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