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in a particular survey of internet users 3763etwo to respondents say that they use social networking sites and 1303 respondents say that they do not use social networking sites what is the probability that a randomly selected person uses a social networking site? does the result suggest that it is likely ( with a probability of 0.5 or greater ) for someone to use social networking sites ? the probability that a randomly selected person uses a social networking site is

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Kielbasa Kings is an online wholesale distributor, with retail customers who order bulk shipments online. They have a one-year renewable lease on the firm's manufacturing facilities, equipment, and utilities. The annual rent is $100,000. They employ two workers at an annual salary of $30,000 each. The ingredients for each shipment cost $200. They currently sell 200 shipments a week for $1100 each. Increasing output by one shipment would cost an extra $1150. For this firm, $1150 is the: marginal cost. fixed cost. total cost. variable cost.

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Point B is a connector between members AB and BC that permits rotation. Point E is located to the left of P. Given $a = 5.7 \text{ m}$, $b = 4.3 \text{ m}$, $W = 1.4 \text{ N/m}$, and $P = 2.4 \text{ N}$, determine the normal force, shear force, and moment at points D and E.

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8 7 6 5 3 2 1 -6 -5 -4 -3 -2 -1 -1 -2 -3 -5 -6 -7 -8 1 2 3 4 5 6 Write an equation for the graph above. f(x) =

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5 1.5 points In a normal, non-dividing cell, you will likely find the Rb protein _____. (Select all that apply) Preventing E2F from transcribing S-phase genes In its 'inactive' form Allowing E2F to transcribe S-phase genes In its 'active' form

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In the circuit shown, both switch A and switch B are initially open and the capacitor is charged to 36 space mu C. Both switches are closed simultaneously. What is the magnitude of the current through the battery immediately after the switches are closed? a. 3.0 A b. 2.0 A c. 1.0 A d. 1.5 A e. 5.0 A

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Question (4) Determine the annual equivalent amount over 4 years for the following cash flow (CF) pattern. The nominal annual interest rate is x1%, and it is compounded x2. EOY CF 0 -$7500 1 -$2000 2 $14000 3 $18000 4 $4000

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6 inch-tall plant grew ( 3)/(4) of an inch one week and twice as much the following week. How tall is he plant now?

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The end of a pencil of mass m and length L rests in a corner as the pencil makes an angle \theta with the horizontal (x) direction (Fig. P8.82). If the pencil is released, it will rotate about point O with an acceleration $\alpha_1$. Suppose the length of the pencil is increased by a factor of 19.5 but its mass is kept the same; the pencil would then have an angular acceleration $\alpha_2$ when released. Find the ratio of $\alpha_1/\alpha_2$.

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Part II (50 points) Short Answer Questions 1. (20 points) Inheritance and Constructor Chain Inorganic Metal Semiconductor Heavy Metal Silicone Iron Figure 1 (1) (15 points) Coding the class tree, i.e. classes Iron and Silicon. Write all code in one source file, no need to split code for design and implementation. Write a complete C++ program to implement the class tree in Figure 1. We assume there is no property (data field) or method (member function) in any class. Every class in this tree must have one no-argument constructor. Inside every constructor, there should be only one output statement to print the name of this class. For example, the Inorganic class's no-argument constructor should print "Inorganic constructor". Add a line break at the end of the printout. In the main function, create one object from each leaf class of

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