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N76 [4]
3 years ago
14

The domain of discourse is the members of a chess club. The predicate B(x, y) means that person x has beaten person y at some po

int in time. Give a logical expression equivalent to the following English statements.a) No one has ever beat Nancy.b) Everyone has been beaten before.c) Everyone has won at least one game.d) No one has beaten both Ingrid and Dominic.e) There are two members who have never been beaten.
Engineering
1 answer:
satela [25.4K]3 years ago
8 0

Answer:A. No one has ever beat Nancy.

Explanation:

The dormain of discourse in a simple language is the set of entities upon which our discussions are based when discussing about something.

The dormain of discourse is also known simply as universe, can also be said to be a set of entities o

upon which certain variables of interest in some formal treatment may range.

The dormain of discourse is generally attributed to Augustus De Morgan, it was also extensively used by George Boole in his Laws of Thought.

THE LOGICAL UNDERSTANDING OF THE THE QUESTION IS THAT NO ONE HAS EVER BEAT NANCY.

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Compared to 15 mph on a dry road, about how much longer will it take for
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Answer:

8 to 10 times

Explanation:

For dry road

u= 15 mph        ( 1 mph = 0.44 m/s)

u= 6.7 m/s

Let take coefficient of friction( μ) of dry road is 0.7

So the de acceleration a = μ g

a= 0.7 x 10  m/s ²                         ( g=10 m/s ²)

a= 7 m/s ²

We know that

v= u - a t

Final speed ,v=0

0 = 6.7 - 7 x t

t= 0.95 s

For snow road

μ = 0.4

de acceleration a = μ g

a = 0.4 x 10 = 4 m/s ²

u= 30 mph= 13.41 m/s

v= u - a t

Final speed ,v=0

0 = 30 - 4 x t'

t'=7.5 s

t'=7.8 t

We can say that it will take 8 to 10 times more time as compare to dry road for stopping the vehicle.

8 to 10 times

7 0
3 years ago
Read 2 more answers
Military glorification through mosaics, relief carvings and triumphant arches are often associated with?
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Military glorification through mosaics, relief carvings and triumphant arches are often associated with roman architectural monument and is the correct choice.

<h3>What is a Monument?</h3>

This can be defined as a structure which is usually large and is used to commemorate the history of an influential person. This helps to serve as an example and also a reminder as to why the performance of good deeds are important

The use of military glorification through mosaics, relief carvings and triumphant arches were also often used by the Romans in other to commemorate war victories and the succession of a new ruler which is known as the emperor.

Read more about Roman monuments here brainly.com/question/15786258

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2 years ago
If the car passes point A with a speed of 20 m&gt;s and begins to increase its speed at a constant rate of at = 0.5 m&gt;s 2 , d
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Answer:

a = 1.68m/S^{2}

Explanation:

Please kindly find the attached file for explanations

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Technician A says the small base circuit of a transistor controls current flow. Technician B says the small emitter circuit cont
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Answer:

A

Explanation:

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