You are designing a new system for detecting an explosive device. Your current design has a 1% false negative rate and a 5% false positive rate. The estimated frequency of actual devices through a typical security check point where the system will be employed is 1 in 5,000. Use the variables E to represent the explosive device and D (or D1 and D2) to represent the detector(s).

a)What is the probability that when the detector indicates the presence of an explosive device that the person is actually carrying one? Show your work?

b)On average, how many people will have to be detained and inspected for every device detected?

c)Now suppose you have additional equipment that gives you an independent test for the same types of devices, but it’s noisier: the false negative rate is 5% and the false positive rate is 10%. What is the probability of a device when both of them signal a detection? Show your work.

1. Explain why Critical Infrastructures Systems are so hard to protect and provide a recommendation of how to fix issues these issues for these types of systems.
2. Explain the three tiers of Risk Management and how they work together to provide a Risk Management Strategy for an Organization.
3. Please explain the IRP Process. We discussed 5 steps concerning this.
4. We talked about different Security Laws. In your opinion explain why it is so hard to pass an updated IT Security Law  
5. Explain the Risk Management Process (4 tasks) and explain the 4 ways to respond to risk and provide an example of each.
6. Explain the reason for having a Configuration Management Plan
7. Explain why Critical Infrastructures Systems are so hard to protect and provide a recommendation of how to fix issues these issues for these types of systems.
8. Explain the three tiers of Risk Management and how they work together to provide a Risk Management Strategy for an Organization.
9. Please explain the IRP Process. We discussed 5 steps concerning this.
10. We talked about different Security Laws. In your opinion explain why it is so hard to pass an updated IT Security Law  
11. Explain the Risk Management Process (4 tasks) and explain the 4 ways to respond to risk and provide an example of each.
12. Explain the reason for having a Configuration Management Plan

What does this program output
(make sure you can explain why the output is what it is)

#include <iostream>
using namespace std;

class A {
   int i;
public:
   A() {cout << "A()\n" ;}
   A(int x) :i(x) {cout << "A(int)\n" ;}
   A(const A& a) : i(a.i) {cout << "A(const A&)\n" ;}
   ~A() {cout << "A()\n" ;}
};

class B {
   A a;
public:
   B() {cout << "B()\n" ;}
   B(int x) :a(x) {cout << "B(int)\n" ;}
   B(const B& b) : a(b.a) {cout << "B(const B&)\n" ;}
   ~B() {cout << "~B()\n" ;}
};

B func(B k) {return k;}

int main() {
   B b1(2), b2;
   b2=func(b1);
   return 0;
}

1. Under what conditions are ketone bodies formed and what are their uses in the body?

2. Mammals are unable to use fatty acids in gluconeogenesis (synthesis of glucose from noncarbohydrate sources) because they lack an enzyme to convert acetyl- CoA to pyruvate. However, recent experimental evidence indicates that certain unusual fatty acids that have odd-numbered carbon chains can be converted to small quantities of glucose. As the odd-carbon chain fatty acid undergoes oxidation, one molecule of propionyl-CoA (3 carbons) is produced during the last cycle. What is the fate of this molecule?

A rigid tank with volume Vtank=20 liter is maintained at T1=300 C and initially contain m1=0.08 kg of water as shown in the figure. At some time, a valve is opened allowing Vin=2 liters of waters at Tin=20 C and Pin=20.0 MPa to enter the tank. The valve is shut and eventually all of the water in the tank comes to T2=300 C.

a)Locate state 1 and state in, the states of the water initially in the tank and the water added to the tank, respectively, on a sketch of a T-v diagram. Indicate on your diagram what two properties define each state as well as lines of constant pressures (isobars), lines of constant specific volume (isochors) and/or lines of constant temperatures (isotherms)).

b)What is the initial pressure in the tank (MPa)?

c)What is the mass of the water added to the tank (kg)?

d)Locate state 2, the final state of the water in the tank, on the T-v diagram from (a).

e) What is the final pressure in the tank (MPa)?

f) Explain how it is possible for the temperature of the water in the tank to remain constant at 3000C after adding water with much lower temperature ( 20oC ) to the tank.

g)On a P-v diagram overlay initial state and final state of water in the tank. Indicate on your diagram what two properties define each states and draw isotherms.

Bromate and bromide react in acidic solution.

                        BrO₃^-(aq) + 5 Br^-(aq) + 6 H⁺(aq) -> Br₂(aq) + 3 H₂O(l)

The kinetics were studied by measuring the rate of appearacne of Br₂ (orange color in solution). Use the following data to determine the rate law (i.e. determine E_a, x, y, and z).

                                    rate = Ae^-Ea/RT [BrO₃^-]^x[Br^-]^y[H⁺]^z

            KBr                 KBrO₃             H⁺                   H₂O                 T         initial rate

            0.0020M         0.0020M         0.020M

            ---------------------------------------------------------------------

            10.0mL            10.0mL            10.0mL            70.0mL            27^oC    1.44 x 10^-12M/s

            20.0mL            10.0mL            10.0mL            60.0mL            27^oC    2.88 x 10^-12M/s

            10.0mL            20.0mL            10.0mL            60.0mL            27^oC    2.88 x 10^-12M/s

            10.0mL            10.0mL            20.0mL            60.0mL            27^oC    5.76 x 10^-12M/s

            10.0mL            10.0mL            10.0mL            70.0mL            43^oC    4.63 x 10^-12M/s

• Create Course object class (Course.java)
  • Course object should be the following attributes:
    • Course id:12345
    • Instructor id: 9876
    • Room id: 101

I have everything written out but it won't compile, any help?

public class Course
{
   private int course id;
   private int instructor id;
   private int room id;

   Course()
   {
       setCourseID (13233);
       setInsID    (001);
       setRoomID    (101);
   }

   Course(int courseID, int instructorID, int roomID)
   {
       setCourseID    (courseID);
       setInsID        (instructorID);
       setRoomID        (roomID);
   }

   public int getCourseID()
   {
       return courseID;
}

public int getInsID()
   {
       return instructorID;
}

public int getRoomID()
   {
       return roomID;
}

{
       System.out.println("Course ID : " + getCourseID());
       System.out.println("Instructor ID : " + getInsID());
       System.out.println("Room ID : " + getRoomID());
   }
}

Match each term below with its definition:

When a turntable rotating at 16 rev/min is shut off, it comes to rest in 26 s. Assume constant angular acceleration.

(a) Find the angular acceleration.
rad/s²

(b) Find the average angular velocity of the turntable.
rad/s

(c) Find the number of revolutions it makes before stopping.
rev

Water Closet Co. wholesales bathroom fixtures. During the current year ending December 31, Water Closet received the following notes:

What are blended inheritance theory and one parent inheritance theory state? How were these theories disproved by mendel? explain

Write a C++ program to perform various calculations related to the fuel economy of a vehicle where the fuel economy is modeling using a polynomial of the form y = Ax² + Bx + C, where

y = fuel economy in miles per gallon (mpg)

x = speed in miles per hour (mph)

In particular:

Inputs: The user should be prompted to input the following information.

The values for coefficients A, B, and C used to model the fuel efficiency

The capacity of the fuel tank (in gallons).

The current amount of fuel in the tank (in gallons).

The current speed of the vehicle (in mpg)

The distance to be travelled on the current trip (in miles)

The cost per gallon for gasoline

The minimum speed, Smin, to be used in the table of Fuel Economy vs Speed

The maximum speed, Smax, to be used in the table of Fuel Economy vs Speed

The speed increment, Sinc, to be used in the table of Fuel Economy vs Speed

Functions: The program should use at least 4 user-defined functions (in addition to main) as described below.

MPG(A, B, C, Speed) – This function returns the fuel economy in mpg for a given speed in mph.

PrintTable(Smin, Smax, Sinc A, B, C) – This function will print a table of Speed (in mpg) and Fuel Economy (in mpg).

Use the range of speeds indicated with the speed increment indicated.

This function should call the function MPG above.

Fuel economy should be calculated using the coefficients A, B, and C provided.

Include a table heading with units.

Display speeds as integers and fuel economy with 2 digits after the decimal point (include trailing zeros).

MaxEconomy(Smin, Smax, Sinc A, B, C, MaxMPG, MaxMPH) – This function will return the maximum mpg and the corresponding speed value using the speed range and increment specified. This function should call the function MPG above.

Use at least one more useful (user-defined) function to calculate one or more of the program outputs.

Outputs: The program output should include the following:

Neatly summarize the input values

A table of Speed and Fuel Economy values (created by the PrintTable function above).

The maximum fuel economy (in mpg) and the corresponding speed (determined by the MaxEconomy function above).

The fuel economy (in mpg) at the current speed

The minimum fuel economy (in mph) and the corresponding speed. Note: This does not always occur at the minimum speed.

For the current speed, trip distance, number of gallons currently in the tank, and cost per gallon for fuel (show the value of each), display the following:

The fuel economy (in mpg)

Speed for the trip (in mph)

The fuel cost for the trip.

The number of gallons that will be used for the trip.

The time to reach the destination.

State how many times you will need to stop for gas. Assume that the tank must be filled when it is 10% full.

State the number of gallons of gas will be left in the tank at the end of the trip.

State the number of miles until the next time the tank must be filled (after the trip).

Repeat the above if you drive at the speed for maximum fuel economy. Also state how many gallons of gas were saved and how much money was saved by driving at the speed for maximum fuel efficiency.

Use a suitable number of digits for all numeric outputs and include units when appropriate.

Error Checks: The program should check for appropriate ranges for inputs and allow the user to re-enter any incorrect inputs, including:

Fuel tank capacity: 0 to 20 gallons

Current amount of fuel in tank: 20% - 100% of fuel tank capacity

Current speed of vehicle: 20 to 80 mph

Distance to be travelled: Must be > 0

Cost per gasoline: Must be > 0

Minimum speed for table (Smin): Integer value where 20 < Smin < 50

Maximum speed for table (Smax): Integer value where (Smin + 10) < Smax < 80

Speed increment for table (Sinc): Integer value where 0 < Sinc < (Smax – Smin)/5

Re-running the Program: Include a loop that will give the user the option of re-running the program.

Question 1

The GCD is the greatest common denominator. Euclid found that if A=Bx +R then GCD(A,B)=GCD(A,R). Prove this is true. Show working

Question 2

The approach Euclid in calculating the GCD used was novel as it was an ________process to solve a complex problem, hence formed the first _______.

Question 3

The difference between a breadth first search (BFS) and a depth first search (DFS) is that in the DFS you traverse all the first branch before proceeding to the next branch.

a) True

b) False

1. Question 4 If a Graph is defined as a diagram showing the relation between variable quantities, typically of two variables, each measured along one of a pair of axes at right angles, OR a diagram representing a system of connections or interrelations among two or more things by a number of distinctive dots, lines, bars, etc, which is correct?

   1. The first definition as graphs need axes

   2. The second definition as more general so covers all graphs

   3. Neither as they are too vague

Question 5

Find a c such that f(n) is O(n2) when f(n) = 1/4 n2 + 15 n + 115. Justify this answer.

Question 6

If f(n)= 10* log n then Big-O of f(n) is O(n)

a) True

b) False

Suppose we are given an arbitrary digraph G = (V, E) that may or may not be a DAG. Modify the topological ordering algorithm so that given an input G, it outputs one of the two things:

a. A topological ordering thus establishing that G is a DAG.

b. A cycle in G thus establishing that it is not a DAG.

The runtime of your algorithm should be O(m+n) where m = |E| and n = |V|

Which of the following statements is (are) correct?
(x) A choice by Molly to buy more muffins at $2 per muffin than at the price of $3 per muffin is an example of
the law of demand and it is illustrated as a movement along Molly’s demand curve for muffins.
(y) A choice by Albert to buy more Tony’s pizza because of a recent increase in the price of Polly’s pizza is
illustrated as a shift to the right of Albert’s demand curve for Tony’s pizza and reflects an increase in
demand for Tony’s pizza.
(z) If George has a change in behavior and is now willing to buy less apple pie at every price, then his
demand curve for apple pie will shift to the left.
A. (x), (y) and (z)
B. (x) and (y) only
C. (x) and (z) only
D. (y) and (z) only
E. (y) only

Which of the following statements is (are) correct?
(x) Assume pizza and soda are complements. If the price of pizza decreases, then both the demand for soda
will increase and the demand curve for pizza will shift to the right.
(y) Assume Lipton green tea and Arizona green tea are close substitutes. If the price of Lipton tea decreases,
then the quantity demanded of Lipton tea will increase and the demand for Arizona tea will decrease.
(z) Assume Hershey chocolate bars and Mars chocolate bars are substitutes. If the price of Hershey chocolate
bars decreases, then the demand curve for Mars chocolate bars will shift to the left.
A. (x), (y) and (z)
B. (x) and (y) only
C. (x) and (z) only
D. (y) and (z) only
E. (y) only

Which of the following is NOT a determinant of demand?
A. the expected price of the good next month
B. the price of a resource that is used to produce the good
C. the price of a complementary good
D. the price of a substitute good
E. A and B, only