Numerade

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What is the final value of sum? (Write the number below.) x = 20 sum = 0 while x > 4: sum += x x = x / 2 print(sum)

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Enhancing Performance: Mental Training for Coaches, Athletes, and ParentsEnhancing Performance: Mental Training for Coaches, Athletes, and Parents

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Find all the second-order partial derivatives of the following function. $w = \frac{3x - 3y}{2x^2 + 3y}$ $\frac{\partial^2 w}{\partial x^2} = \square$

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The recursive definition of a Fibonacci Number is F(n) = F(n-1) + F(n-2), where F(0)=1 and F(1)=1. What is the value of Fib(2)?

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Problem 2 (10 points) Draw a simple, connected, directed graph with 8 vertices and 16 edges such that the in-degree and out-degree of each vertex is 2. Show that there is a single (nonsimple) cycle that includes all the edges of your graph, that is, you can trace all the edges in their respective directions without ever lifting your pencil. (Such a cycle is called an Euler tour.)

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Question 5 (1 point) Saved A $100,000 grant results in a $1500 per month scholarship forever with the first scholarship given at the end of one month. What is the monthly interest rate? 0.015228 0.014778 0.015000 0.192484 0.195618

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Source voltage (Vs) = 9.0V Frequency (f) = 99Hz a. Find Xc b. Find Is the current leading or lagging the voltage in this circuit

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Steam at 295°C and 9.00 bar absolute is expanded through a nozzle to 230°C and 4.00 bar. Negligible heat is transferred from the nozzle to its surroundings. The approach velocity of the steam is negligible. The specific enthalpy of steam is 3044 kJ/kg at 295°C and 9.00 bar and 2923 kJ/kg at 230°C and 4.00 bar. Use the open system energy balance to calculate the exit speed of the steam.

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(1) For $x(t)$ shown in the figure below, sketch the following two signals: (a) $x(2t+2)$ (b) $x(1-3t)$

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Which is NOT a force of evolution? Genetic drift Speciation Natural selection Gene flow 1 1 point Two populations of fish live in the same lake - some live primarily at the bottom, and some primarily stay at the top. They do not reproduce with each other because they do not travel to opposite parts of the lake. What is going on? Gametic isolation Behavioral isolation Temporal isolation Ecological isolation Hybrid sterility 2 1 point A population of dandelions live in the same large open area of land. A housing development is built in the center, and now there are two areas of land, separated by all the houses. The dandelions on one side of the development are not in contact with (and therefore cannot reproduce with) the dandelions on the other side. If they become different species, what will have happened? Allopatric speciation Gametic isolation Sympatric speciation Parapatric speciation

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jose antonio l.