Numerade

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According to the following reaction, how many moles of hydrofluoric acid will be formed upon the complete reaction of 0.385 moles silicon tetrafluoride with excess water? silicon tetrafluoride (s) + water (l) \rightarrow hydrofluoric acid (aq) + silicon dioxide (s) ____ moles hydrofluoric acid

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There are an unlimited number of firms that may potentially enter the market to produce a product. Each firm "i" has a cost of production given by variable costs and a fixed cost of a non-transferrable $250 license to operate. The variable costs for the firm are VC($q_i$) = 0.025$q_i$^2. You must show your work to receive any credit. 1. Working with the profit function. a. Write out the firm's profit function. b. What quantity maximizes the firm's profit? c. For which prices will the firm want to enter this market? d. For which prices will the firm produce if it has already entered the market? e. Using what you found in part 1b. and 1c. write out the firm's supply function.

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The IEEE 754 Single Precision Floating Point Number representation system does not have a sign bit for exponents. Explain how exponent signing is achieved.

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2. Discuss how climate change and ecosystem changes and destruction influence disease emergence.

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2. In tossing a fair coin, let X=Number of trials until the first head appears. Find $E(X)$ and $Var(X)$

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For questions 6 and 7, a sample of argon gas has a volume of 735 mL at a pressure of 1.20 atm and a temperature of 112 °C. What is the final volume of the gas, in milliliters, when the pressure and temperature of the gas sample are changed to the following, if the amount of the gas does not change? Show your work. 6) 658 mmHg and 281 K 7) 0.55 atm and 75 °C

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Suppose that X is a random variable with probability density function given by: $f_x(x) = \begin{cases} k(x^3 + x), & 0 \le x \le 2; \\ 0, & \text{otherwise.} \end{cases}$ (Note that you must determine the value of the constant $k$ in part 1 below and use it in all subsequent parts of this problem.) 1. Calculate the value of $k$ so that $f_x$ is a valid probability density function. (2 pts) $k = $ (please write your answer in the form a/b) 2. Calculate the probability $P(X = 0.5) = $ . (2 pts) 3. Calculate the probability $P(X \le 1) = $ . (2 pts) (please write your answer in the form a/b) 4. Calculate $E_x$, the expected value of X in the form a/b) 5. Calculate $\sigma^2$, the variance of X form a/b) . (2 pts) (please write your answer . (2 pts) (please write your answer in the

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Problem 12 - Show that the function satisfies the wave equation âˆ‚Â²z/âˆ‚tÂ² - âˆ‚Â²z/âˆ‚xÂ² = sin(wct)sin(wx)/(4z)

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added to the gas. The A) 5740.0 B) 4920.0 C) 3280.0 D) 2460.0 E) 4100.0 6. The volume of 25 moles of an ideal monatomic gas ($c_v$=1.5R) is increased from 0.2 $m^3$ to 0.5 $m^3$ at a constant temperature of 400 K. The initial pressure (in kPa) of the gas is. A) 415.7 B) 498.8 C) 582.0 D) 261.9 E) 332.6 1 mol of an ideal monatomic gas ($c_v$=1.5R) is increased from 0.2 $m^3$ to 0.5 $m^3$ at a In is closest to c

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2. Suppose that when Sam's income was $48 per week, he purchased 12 units of good X at a price of $2 per unit and 24 units of good Y at a price of $1 per unit. When the price of good X fell to $1, ceteris paribus, he increased his purchase of good X to 16 units and his purchase of good Y to 32 units. a. Is good X a Giffen Good? How do you know? b. How does the substitution effect impact the quantity demanded of Y? Is good Y a normal or inferior good? How can you be sure?

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laura m.