When using a product detector to detect a DSB-SC system there are at least 2 critical factors concerning the carrier at the receiver. What is the result of having a receiver carrier which is 60 degrees out of phase with respect to the carrier at the transmitter? The detected signal will be scaled by 50%. Nil. The detected signal will not be scaled at all. The detected signal will be scaled by 70%. The detected signal will not be scaled as the statement is only correct in relation to the frequency of the receive and transmit carrier. The detected signal will be scaled by 25%.

Answer:

The answer is D

Explanation:

Because neither of them are wrong I dont know how to really tell you!

Stairs, ladders, or ramps are required at an elevation break of 19 inches or more.

This is to ensure the safety of those who use the facility, particularly people with disabilities. If there is a level change of more than 19 inches, it is suggested that a ramp or elevator be installed to make it more accessible. Ramps, ladders, and stairs are vital components of any building or construction that has an elevation break of 19 inches or more. Their function is to offer a secure and convenient way of accessing various floors within a facility, whether it's a residential or commercial structure.

The Americans with Disabilities Act (ADA) has laws that ensure that facilities are built to be accessible to individuals with disabilities. For instance, they provide guidelines on the minimum width of a ramp or the steepness of the stairs. This is to ensure that individuals who use a wheelchair or walker can easily navigate the building. If a building has an elevation break of more than 19 inches, then it is required to have a ramp that meets the guidelines of the ADA. This will make it easier for individuals with disabilities to move from one floor to the next.

Moreover, if the building is relatively large and has multiple floors, an elevator is recommended. The elevator will ensure that people with disabilities can quickly move around the building without any issues. In conclusion, stairs, ladders, or ramps are required at an elevation break of 19 inches or more. The ADA guidelines ensure that individuals with disabilities have access to all parts of the building. They stipulate the minimum width, height, and slope of a ramp, as well as the steepness of the stairs. When designing a building, it is crucial to consider these guidelines to make the facility accessible to all.

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Stairs, ladders, or ramps may be required at certain elevation breaks to ensure safe access between different levels.

In physics, when there is a change in elevation, stairs, ladders, or ramps may be required to provide a safe means of accessing different levels. The specific elevation break at which one of these options is required depedependsnds on various factors, such as the height and angle of the change in elevation, as well as any applicable building codes or regulations. For example, building codes may require the use of stairs for elevation breaks of a certain height, but ramps may be required for breaks above a certain threshold that accommodate individuals with mobility impairments.

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Semiconductors are formed by doping pure semiconductor materials. Examples include silicon, germanium, gallium arsenide, and indium phosphide. They are used in integrated circuits, transistors, solar cells, LEDs, lasers, and sensors, among other applications.

Semiconductors are formed through a process called doping, which involves intentionally adding impurities to a pure semiconductor material. The impurities, known as dopants, can introduce extra electrons (n-type doping) or electron deficiencies called holes (p-type doping) into the semiconductor lattice structure.

Examples of semiconductor materials include:

1. Silicon (Si): Silicon is the most widely used semiconductor material. It is abundant, has a well-developed manufacturing infrastructure, and exhibits good electrical properties for various applications.

2. Germanium (Ge): Germanium was one of the first materials used as a semiconductor. It has similar properties to silicon but is less commonly used in modern applications.

3. Gallium Arsenide (GaAs): Gallium arsenide is a compound semiconductor with superior electronic properties compared to silicon. It is used in high-speed devices such as microwave amplifiers, laser diodes, and solar cells.

4. Indium Phosphide (InP): Indium phosphide is another compound semiconductor that finds applications in telecommunications, fiber-optic networks, and high-frequency electronics.

Semiconductors are used in a wide range of electronic devices and technologies, including:

- Integrated Circuits (ICs): Semiconductors form the foundation of ICs, such as microprocessors, memory chips, and sensors, which are used in computers, smartphones, and various electronic devices.

- Transistors: Transistors, which are fundamental components of electronic circuits, are made using semiconductors. They are used in amplifiers, switches, and digital logic circuits.

- Solar Cells: Semiconductors like silicon and gallium arsenide are used in photovoltaic cells to convert sunlight into electricity.

- Light-Emitting Diodes (LEDs): LEDs use semiconductors to emit light efficiently and are used in displays, lighting, and optoelectronic applications.

- Semiconductor Lasers: Semiconductor lasers are used in telecommunications, optical storage devices, laser printers, and medical equipment.

- Sensors: Semiconductors are employed in various sensors, including temperature sensors, pressure sensors, gas sensors, and image sensors.

These are just a few examples of the widespread use of semiconductors in modern technology. Their unique electrical properties make them versatile for a wide range of applications.

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The angle of convergence γ for the given point in Puerto Rico is approximately 114.53425 degrees.

To find the angle of convergence γ, we need to convert the latitude and longitude from degrees, minutes, and seconds to decimal degrees.

Latitude: 17º59'39"

To convert minutes and seconds to decimal degrees, we divide the minutes by 60 and the seconds by 3600.

17º + (59/60) + (39/3600) = 17.9941667º

Longitude: 65º27'56.7"

Following the same conversion process:

65º + (27/60) + (56.7/3600) = 65.46575º

Now, we can use the formula for calculating the angle of convergence γ:

γ = 180º - |longitude|

Substituting the longitude value:

γ = 180º - |65.46575º| = 180º - 65.46575º = 114.53425º

Therefore, the angle of convergence γ for the given point in Puerto Rico is approximately 114.53425 degrees.

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Answer:

A series circuit.

Explanation:

Electrical current flowing from one component to the next is an example of a series circuit.

In a series circuit, the components (such as resistors, light bulbs, or other devices) are connected in a sequence, so that the same current passes through each component in the circuit. This means that there is only one path for the current to follow.

In a series circuit, the total resistance is equal to the sum of the individual resistances of the components, the total voltage across the circuit is equal to the sum of the voltage drops across each component, and the current remains constant throughout the circuit since there is no alternative path for it to flow.

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The environmental Protection Agency (EPA) has two programs that make a business an energy star which are Energy Star program and WaterSense.

This is an agency in the United States, designed to enforce regulations that protect the environment and natural resources.

The Agency does the following :

Hence, the environmental Protection Agency (EPA) has two programs that make a business an energy star which are Energy Star program and WaterSense.

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Answer:

Both technicians are right.

Explanation:

Unibody vehicles have their body, floor plan, and chassis formed into a single structure. These vehicles are generally lighter and more rigid than body-over-frame vehicles. The fact that they are lighter than body-over-frame vehicles means that they have lesser weight to power ratio, which means compared to a body-over-frame vehicle, they will use a lesser amount of fuel to move through the same distance than the body-over-frame would use. This makes unibody vehicles more fuel efficient. Body-over-frame types of vehicles  are made up of a separate body, mounted on a relatively rigid vehicle frame or chassis that carries the powertrain (the engine and drivetrain). This was the original method of building automobiles, is now used mainly for pickup trucks and SUVs.

The creep rate is constant in the steady state creep regime. Option d is answer.

In the steady state creep regime, the creep rate remains constant over time, indicating that the rate of deformation is balanced by the rate of recovery. This is also known as the secondary creep regime. In contrast, the creep rate increases over time in the primary and tertiary creep regimes. In the elastic strain regime, there is no permanent deformation, and therefore no creep.

Overall, understanding the different creep regimes is important in designing materials and structures that can withstand long-term loading at high temperatures and stresses.

Option d is answer.

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According to the research, research can facilitate the work of building technicians in the conception, materials to use and planning of the project.

They are experts in construction projects, supporting the design of plans, estimating costs, planning work methods, etc.

Research can facilitate the work of building technicians in the following ways:

Therefore, we can conclude that according to the research, research can facilitate the work of building technicians in the conception, materials to use and planning of the project.

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Answer:

Use a non digital multimeter.

Explanation:

If a digital multimeter displays "000" when reading amperage, the technician should adjust the multimeter to a higher amperage range.

This is because "000" typically indicates that the current being measured is too low for the current range selected on the multimeter.

By switching to a higher amperage range, the technician can get a more accurate reading and ensure that the multimeter is properly measuring the current in the circuit under test.

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The spacing between sidebands is equal to 6 kHz.

Given the following data:

A sideband can be defined as a band of frequencies that are lower or higher than the carrier frequency due to the modulation process. Thus, it will either be lower than or higher than the carrier frequency.

Generally, the frequency of the modulating signal is equal to the spacing between the sidebands. Therefore, a modulating signal of 3 kHz simply means that the lower sideband is 3 kHz higher while the upper sideband is 3 kHz lower.

Spacing = 3 kHz + 3 kHz = 6 kHz.

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tends to intensify when strong companies with sizable financial resources, proven competitive capabilities, and respected brand names hurdle entry barriers looking for growth opportunities and launch aggressive, well-funded moves to transform into strong market contenders.

A competitive analysis, also known as a competitor analysis, evaluates your company's performance in relation to other companies in your market providing equivalent products or services.

A competitor study identifies each participant's operational strengths, substantive shortcomings, product offers, market dominance, and missed opportunities, according to David Taffet, CEO of Petal, and focuses on finding market competitors positioned to intrude on your potential.

These are some ways competitor analyses aid in business improvement:

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Following are the true statements about the blackbody: 1. A blackbody is a perfect emitter of radiations. 2. A blackbody is a perfect absorber of radiation. 3. A blackbody is an idealized body that emits the maximum amount of radiation that can be emitted by a surface at a given temperature.

A blackbody is an idealized object that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. It is also an idealized emitter of radiation, and any radiation that is emitted is referred to as blackbody radiation. The following are true statements about blackbodies:

1. A blackbody is a perfect emitter of radiation.

2. A blackbody is a perfect absorber of radiation.

3. A blackbody is an idealized body that emits the maximum amount of radiation that can be emitted by a surface at a given temperature.

4. The emissivity of a blackbody is always equal to one, not less than one.

5. Blackbodies are objects that are considered ideal emitters because they emit electromagnetic radiation at every frequency with perfect efficiency.

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Blackbody radiation refers to the phenomenon that occurs when a perfect absorber and emitter of energy is placed in a cavity and allowed to come to an equilibrium temperature.

The following statements about the blackbody are true:A blackbody is a perfect emitter of radiationA blackbody is a perfect absorber of radiationA blackbody is an idealized body that emits the maximum amount of radiation that can be emitted by a surface at a given temperatureThus, options (A), (B), and (E) are true statements about the blackbody. The statement in option (C) that "A blackbody does not actually exist" is a common misperception. While it is true that a perfect blackbody does not exist in nature, scientists use an approximation of a blackbody for calculations called a blackbody radiator.Option (D) which states that "A blackbody has emissivity that is always less than one" is false. A blackbody has an emissivity of one (unity) which means that it emits all radiation incident upon it.

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Layer 3 of the OSI (Open Systems Interconnection) model, known as the network layer, is responsible for providing end-to-end communication between hosts in different networks.

The network layer is responsible for routing and forwarding data packets across different networks, as well as handling addressing and logical connectivity.

The main entities that live at layer 3 (the network layer) of the OSI model include:

Routers: Routers are network devices that operate at the network layer and are responsible for forwarding data packets between different networks. They use routing tables and protocols to determine the best path for data packets to reach their destination across multiple networks.

IP (Internet Protocol): IP is a network layer protocol that provides logical addressing and routing functionality. It is responsible for assigning unique IP addresses to devices on a network, and for routing data packets based on those IP addresses.

ICMP (Internet Control Message Protocol): ICMP is a network layer protocol that is used for sending error messages and operational information about network conditions. It is often used for diagnostic purposes, such as ping and traceroute, to check the connectivity and status of network devices.

Network Addressing: Layer 3 is also responsible for assigning and managing IP addresses, which are used to uniquely identify devices on a network.

Subnetting and VLANs: Layer 3 may also involve subnetting and VLANs (Virtual Local Area Networks), which are used for network segmentation and management to improve efficiency and security.

In summary, layer 3 of the OSI model includes routers, IP, ICMP, network addressing, and other protocols and technologies that are responsible for routing, addressing, and logical connectivity in a network.

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Answer:

105°touch sensce what I could wathskb

Answer:

The phase angle between the generator voltage and the resistor voltage in an AC circuit is determined by the relationship between the voltage and the current, as described by Ohm's Law.

At low frequencies, the resistor behaves as a purely resistive element, meaning that the current flowing through it is in phase with the voltage across it. Therefore, the phase angle between the generator voltage and the resistor voltage is 0 degrees.

However, as the frequency of the AC signal increases, the impedance of the resistor becomes more complex, with both resistive and reactive components. The reactive component of the resistor's impedance is proportional to the frequency of the signal, so as the frequency increases, the reactive component becomes more significant.

This reactive component causes the current to lead or lag the voltage, depending on the sign of the reactance. In the case of a purely resistive element, the current leads the voltage by 90 degrees. As the frequency increases, the current leads the voltage by a smaller angle because the reactive component of the resistor's impedance becomes less significant at higher frequencies.

Therefore, the phase angle between the generator voltage and the resistor voltage decreases as the frequency is increased, approaching 0 degrees as the frequency becomes very high.

Water is a great erode. Man-made levees must be tough. They are often built of rock and concrete. The correct option is A.

Man-made levees are designed to withstand the erosive power of water and prevent flooding in areas near bodies of water.

As such, they are constructed using strong and durable materials, such as rock and concrete, that can resist the forces of water and prevent erosion.

These materials provide a solid and stable foundation for the levees, which is important for ensuring their effectiveness in protecting against flooding.

Packed mud and dirt or sandbags and gravel may not provide sufficient strength and durability to withstand the erosive power of water and may not be suitable for building effective levees.

Thus, the correct option is A.

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Answer:

Tires or wheels? I think this is the answer. ^_^

Explanation:

The cluster head directs data transmission between clusters and controls the actions of its individual nodes.

The definition of power as the "capacity to accomplish work" refers to the capability to exert a force that compels an object to move. Even if the word is vague, it is clear what energy actually means: it is the force that causes objects to move. Kinetic energy and potential energy are the two categories of power.

Fossil fuels (coal, gas, and oil), nuclear energy, or renewable energy sources are the main energy sources. A secondary source of energy that is produced from fundamental energy sources is electricity.

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Answer:

Explanation:

a. When the car is being towed by the truck at a constant velocity on a level road, the net force acting on the car is zero. This means that the power required by the truck to maintain this velocity is equal to the power dissipated by frictional forces, which is given by:

Power = Force × Velocity

The force of friction can be calculated using the coefficient of rolling resistance and the weight of the car:

Force = coefficient of rolling resistance × weight

= 0.01 × 1300 kg × 9.81 m/s^2

= 127.53 N

The velocity of the car is not given, so we cannot calculate the power required by the truck.

b. When the car is being towed by the truck at a constant velocity of 60 km/h on a 35° uphill road, the power required by the truck can be calculated as follows:

Power = Force × Velocity

The force required to maintain this velocity can be resolved into two components: the force due to gravity acting downhill and the force due to friction acting uphill. The force due to gravity can be calculated using the weight of the car and the angle of the slope:

Force due to gravity = weight × sin(35°)

= 1300 kg × 9.81 m/s^2 × sin(35°)

= 7113.95 N

The force due to friction can be calculated using the coefficient of rolling resistance and the weight of the car:

Force due to friction = coefficient of rolling resistance × weight

= 0.01 × 1300 kg × 9.81 m/s^2

= 127.53 N

The net force required to maintain a constant velocity can be calculated as the vector sum of these two forces:

Net force = Force due to gravity - Force due to friction

= 7113.95 N - 127.53 N

= 6986.42 N

The velocity of the car can be converted to meters per second:

Velocity = 60 km/h × 1000 m/km / 3600 s/h

= 16.67 m/s

Now we can calculate the power required by the truck:

Power = Net force × Velocity

= 6986.42 N × 16.67 m/s

= 116,419.1 W

≈ 116.42 kW

Therefore, the power required by the truck to maintain a constant velocity of 60 km/h on a 35° uphill road is approximately 116.42 kW.

c. When the truck is accelerating the car on a level road from rest to 80 km/h in 10 seconds, the average power required can be calculated as follows:

First, we need to convert the final velocity to meters per second:

Final velocity = 80 km/h × 1000 m/km / 3600 s/h

= 22.22 m/s

The acceleration of the car can be calculated using the formula:

Acceleration = (Final velocity - Initial velocity) / Time

= (22.22 m/s - 0 m/s) / 10 s

= 2.22 m/s^2

The force required to accelerate the car can be calculated using Newton's second law:

Force = mass × acceleration

= 1300 kg × 2.22 m/s^2

= 2892 N

The power required to accelerate the car can be calculated using the formula:

Power = Force × Velocity

= 2892 N × (80 km/h × 1000 m/km / 3600 s/h)

= 226,595.6 W

The net force acting on the car is zero when it is being towed by the truck at constant speed along a flat road.

The power dissipated by frictional forces, which is determined by the following equation, is equal to the power needed by the vehicle to maintain this velocity.

Force and velocity are the components of power. Using the coefficient of rolling resistance and the vehicle's weight, one can get the force of friction.

Weight Force = Coefficient of rolling resistance = 0.01 × 1300 kg × 9.81 m/s^2 = 127.53 N

Therefore, The net force acting on the car is zero when it is being towed by the truck at constant speed along a flat road.

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A contractor has a job that should be completed in 100 days. At present, he has 80 men on the job and it is estimated that they will finish the work in 130 days. Of the 80 men, 50 are each paid ₱120.00 a day, 25 at ₱180.00 a day, and 5 at ₱250.00 a day. For each day beyond the original 100 days, a contractor has to pay ₱500.00.

liquidated damages.(a) How many more men should the contractor add so that he would complete the work on time?In the first case, we see that the contractor already has 80 men and they are working for 130 days to complete the job. So, we can use the following formula to determine the additional number of workers required to finish the work in 100 days.

b) If of the additional men, 2 are paid ₱180.00 a day, and the rest at ₱120.00 a day, would the contractor save money by employing more men and not paying the fine Let’s assume that the contractor adds 440 workers, of which 2 are paid ₱180.00 a day and the rest are paid ₱120.00 a day.

The total cost of the new workers is, therefore, ₱9600.00 + ₱4500.00 + ₱49800.00 = ₱63,900.00.The cost of liquidated damages would be calculated as follows:  $$LD = (130-100) \cdot 500 = ₱15,000.00$$.

Therefore, the contractor would save money if he employs more men and not pays the fine. The contractor’s savings would be:$$Savings = LD - Additional cost$$$$= 15000.00 - 63900.00 $$$$= -48900.00$$

Thus, we can see that the contractor would save ₱48,900.00 by employing more men and not paying the fine.

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i] The density of the pellet is 0.977 g/cm^{3}. ii] The macropore volume in cm^{3}/g is 0.205 cm^{3}/g. iii] The macropore void fraction in the pellet is 25.1%.iv] The micropore void fraction in the pellet is 49.0%. v] The solid fraction of the pellet is 25.9%. vi] The density of the particles is 1.222 g/cm^{3}.

i] To determine the density of the pellet, we can use the formula:

Density = Mass / Volume

Given that the mass of the pellet is 3.15 g and the volume is 3.22cm^{3}, we can calculate the density as follows:

Density = 3.15 g / 3.22 cm^{3}≈ 0.977 \(g/cm^{3\)

ii] The macropore volume in cm3/g can be calculated by dividing the macropore volume of the pellet (0.645 cm3) by the mass of the pellet (3.15 g):

Macropore volume = 0.645 cm^{3} / 3.15 g ≈ 0.205 \(cm^{3} /g\)

iii] The macropore void fraction in the pellet can be calculated using the formula:

Macropore void fraction = Macropore volume / Total volume of the pellet

Total volume of the pellet = Volume - Macropore volume = 3.22 cm^{3}- 0.645 cm^{3} = 2.575 cm^{3}

Macropore void fraction = 0.645 cm^{3} / 2.575 \(cm^{3}\)≈ 0.251 or 25.1%

iv] The micropore void fraction in the pellet can be calculated using the given micropore volume of the particles (0.40 cm^{3} /g) and the mass of the pellet (3.15 g):

Micropore volume in the pellet = Micropore volume/g x Mass

Micropore volume in the pellet = 0.40 \(cm^{3} /g\) x 3.15 g = 1.26 cm3

Micropore void fraction = Micropore volume in the pellet / Total volume of the pellet

Micropore void fraction = 1.26 \(cm^{3}\) / 2.575 \(cm^{3}\) ≈ 0.490 or 49.0%

v] The solid fraction of the pellet can be calculated by subtracting the sum of macropore and micropore void fractions from 1:

Solid fraction = 1 - (Macropore void fraction + Micropore void fraction)

Solid fraction = 1 - (0.251 + 0.490) ≈ 0.259 or 25.9%

vi] The density of the particles can be determined using the mass of the pellet (3.15 g) and the total volume of the particles:

Total volume of the particles = Volume - Macropore volume = 3.22 \(cm^{3}\)- 0.645 \(cm^{3}\) = 2.575\(cm^{3}\)

Density of the particles = Mass / Total volume of the particles

Density of the particles = 3.15 g / 2.575\(cm^{3}\) ≈ 1.222 \(g/cm^{3}\)

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You should wait at least 24 hours before staining pressure treated wood. This will give the wood time to dry out and the chemicals to cure. If you stain the wood too soon, the stain may not penetrate the wood properly and may not last as long.

Pressure treated wood is treated with chemicals to protect it from rot, decay, and insects. These chemicals can make the wood wet and can also make it difficult for stain to penetrate. If you stain the wood too soon, the stain may not be able to penetrate the wood properly and may not last as long.

To determine if the pressure treated wood is dry enough to stain, you can try the "sprinkle" test. Sprinkle water on the wood. If the water beads or pools on the surface, the wood is not dry enough to stain. If the water is absorbed within 10 minutes, the wood is dry enough to stain.

It is also important to consider the weather conditions when staining pressure treated wood. If it is hot and humid, the wood may not dry as quickly. If it is raining, you should not stain the wood at all.

By waiting at least 24 hours before staining pressure treated wood, you can help to ensure that the stain will penetrate the wood properly and will last as long as possible.

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In the radio communication system, multipath is the propagation phenomenon that causes diffusion or reflection in multiple different directions of a signal.

Multipath is a propagation mechanism that impacts the propagation of signals in radio communication. Multipath results in the transmission of data to the receiving antenna by two or more paths. Diffusion and reflection are the causes that create multiple paths for the signal to be delivered.

Diffraction occurs when a signal bends around sharp corners; while reflection occurs when a signal impinges on a smooth object. When a signal is received through more than one path because of the diffraction or reflection, it creates phase shifting and interference of the signal.

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Answer:

the answer c or e or do wha t the first guy do

Inspect the rotor for damage, check thickness, clean, install properly, and torque lug nuts.

Defien torque.

Torque is a measure of the twisting force that causes an object to rotate around an axis or pivot point. It is often expressed in units of pound-feet (lb-ft) or Newton-meters (N-m). Torque is important in many mechanical applications, including automotive engineering, as it determines the ability of a vehicle's engine to generate power and move the vehicle forward. In the context of automotive engineering, torque is the force that is applied to the wheels to turn them and move the vehicle.

If a rotor has been refinished on and off-car brake lathe, here are some things you should do:

1. Inspect the rotor for any visible damage or defects, such as cracks, warping, or excessive wear.

2. Check the thickness of the rotor to ensure that it is still within the manufacturer's specifications.

3. Clean the rotor with brake cleaner to remove any debris or contaminants.

4. Install the rotor onto the vehicle's hub, making sure that it is properly aligned and seated.

5. Torque the lug nuts to the manufacturer's specifications.

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Answer:

the range of K can be said to be :  -3.59 < K< 0.35

Explanation:

The transfer function of a typical tape-drive system is given by;

\(KG(s) = \dfrac{K(s+4)}{s[s+0.5)(s+1)(s^2+0.4s+4)]}\)

calculating the characteristics equation; we have:

1 + KG(s) = 0

\(1+ \dfrac{K(s+4)}{s[s+0.5)(s+1)(s^2+0.4s+4)]} = 0\)

\({s[s+0.5)(s+1)(s^2+0.4s+4)]} +{K(s+4)}= 0\)

\(s^5 + 1.9 s^4+ 5.1s^3+6.2s^2+ 2s+K(s+4) = 0\)

\(s^5 + 1.9 s^4+ 5.1s^3+6.2s^2+ (2+K)s+ 4K = 0\)

We can compute a Simulation Table for the Routh–Hurwitz stability criterion Table as  follows:

\(S^5\)             1                     5.1                          2+ K

\(S^4\)            1.9                   6.2                           4K

\(S^3\)             1.83            \(\dfrac{1.9 (2+K)-4K}{1.9}\)          0

\(S^2\)        \(\dfrac{11.34-1.9(X)}{1.83}\)       4K                         0

S          \(\dfrac{XY-7.32 \ K}{Y}\)        0                            0

\(\dfrac{1.9 (2+K)-4K}{1.9} = X\)

\(\dfrac{11.34-1.9(X)}{1.83}= Y\)

We need to understand that in a given stable system; all the elements in the first column is usually greater than zero

So;

11.34  - 1.9(X) > 0

\(11.34 - 1.9(\dfrac{3.8+1.9K-4K}{1.9}) > 0\)

\(11.34 - (3.8 - 2.1K)>0\)

7.54 +2.1 K > 0

2.1 K > - 7.54

K > - 7.54/2.1

K > - 3.59

Also

4K >0

K > 0/4

K > 0

Similarly;

XY - 7.32 K > 0

\((\dfrac{3.8+1.9K-4K}{1.9})[11.34 - 1.9(\dfrac{3.8+1.9K-4K}{1.83}) > 7.32 \ K]\)

0.54(2.1K+7.54)>7.32 K

11.45 K < 4.07

K < 4.07/11.45

K < 0.35

Thus the range of K can be said to be :  -3.59 < K< 0.35