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Debora [2.8K]
1 year ago
11

From the list of problems below, check all that are known to be NP-complete. You do not need to justify your answer. (Set cover)

Given a graphGand an integerk, find a set of verticesUof size at mostksuch that every edge is adjacent to at least one vertex inU. (Max SAT) Given a CNF formula and an integer g, find a truth assignment that satisfies at leastgclauses. (Linear programming) Given am×nmatrixA, and vectorsb∈Rm,c∈Rn, find the solution of maxcTx s.t. Ax≤bx≥0​(MST) Given an undirected, weighted graphG=(V,E)find a minimum spanning tree ofG, or outputs FALSE if such tree does not exist.
Engineering
1 answer:
White raven [17]1 year ago
7 0

Any computing issue that falls within the category of NP-complete problem has yet to find an effective solution algorithm.

<h3>Which problems are NP-complete?</h3>
  • Any of a family of computer problems that have no effective solution algorithm are referred to as NP-complete issues.
  • The traveling salesman problem, satisfiability issues, and graph-covering issues are only a few examples of the significant computer science issues that fall under this category.
  • The difficulty of NP and NP-Complete issues is equal. If a problem is included in both NP and NP-Hard Problems, it is said to be NP-Complete.
  • This statement, "This problem can change into an NP-complete problem on a non-deterministic Turing machine," is untrue for the obvious reason that while any problem in P is also a problem in NP, no problem in P is an NP-complete problem (unless P=NP, of course). If P is an NP problem and all NP problems convert into NP-complete problems, then P must also undergo this transformation.

To learn more about NP-complete problem refer to:

brainly.com/question/17218056

#SPJ4

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3 years ago
Air is pumped from a vacuum chamber until the pressure drops to 3 torr. If the air temperature at the end of the pumping process
malfutka [58]

Answer:

The final pressure is 3.16 torr

Solution:

As per the question:

The reduced pressure after drop in it, P' = 3 torr = 3\times 0.133\ kPa

At the end of pumping, temperature of air, T = 5^{\circ}C = 278 K

After the rise in the air temperature, T' = 20^{\circ}C = 293 K

Now, we know the ideal gas eqn:

PV = mRT

So

P = \frac{m}{V}RT

P = \rho_{a}RT          (1)

where

P = Pressure

V = Volume

\rho_{a} = air\ density

R = Rydberg's constant

T = Temperature

Using eqn (1):

P = \rho_{a}RT

\rho_{a} = \frac{P}{RT}

\rho_{a} = \frac{3 times 0.133\times 10^{3}}{0.287\times 278} = 0.005 kg/m^{3}

Now, at constant volume the final pressure, P' is given by:

\frac{P}{T} = \frac{P'}{T'}

P' = \frac{P}{T}\times T'

P' = \frac{3}{278}\times 293 = 3.16 torr

7 0
4 years ago
To be safe, the engineers making the ride want to be sure the normal force does not exceed 1.8 times each persons weight - and t
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Answer:

μ = 0.55

Explanation:

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Kisachek [45]

Answer:

True, True

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