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Bingel [31]
3 years ago
5

I need help on this question please

Mathematics
1 answer:
ollegr [7]3 years ago
3 0
The correct answer is A. 2.5 meters. One meter has approximately 3 feet, so it would make sense for a car to be about 7.5 feet in length

Hope this helps
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Doug, a student in this class, knows how to write programs in JAVA. Everyone who knows how to write programs in JAVA can get a h
In-s [12.5K]

Missing Part of Question

Explain which rules of inference are used in the above

Answer:

Universal instantiation, Modus ponens and Existential generalization

Step-by-step explanation:

Splitting the Statement into two, we have

"Doug knows how to write program is Java"

and

"Doug can get a high paying job"

Represent Doug with x. Then the statements is rewritten as

P(x) = "x knows how to write program is Java"

and

Q(x) = "x can get a high paying job"

In logic, A premise is a statement in an argument that provides reason or support for the conclusion.

So, Statement 1 can be written as

1. P(x) ---- Premise

Then, we have

2. Vx(P(x) --> Q(x)) -- Premise. This mean that P(x) for all values in the domain.

The universal instantiation of (2) leads to

3. P(Doug) --> Q(Doug)

The modus ponens of the above gives

4. Q(Doug)

The existential generalisation from above gives

5. ƎxQ(x)

Which means someone in this class can get a high paying job.

PS:

Universal Instantiation is a valid rule of inference from a truth about each member of a class of individuals to the truth about a particular individual of that class; it is represented by VxP(x).

Existential Generalisation is a valid rule of inference that allows one to move from a specific statement, or one instance, to a quantified generalized statement, or existential proposition.

It is represented as ƎxP(x)

4 0
3 years ago
Help me on 8 and 9 plz
klasskru [66]
8. first 12 bags for 54m^{2} [/tex]  
 54 ÷ 12 = 4.5
we know: 1 bag for 4.5m^2
36 ÷ 4.5 = 8
so 36m^2 we must use 8 bags

9. \frac{5}{8}x2 =5x2/8= 10/8 = 5/4 = 1.25

 hope it helped you
5 0
3 years ago
Assume log bx = 0.49. Evaluate.<br> Logbx^2
Snowcat [4.5K]

Step-by-step explanation:

Use exponent property of logs.

logb(x²) = 2 logb(x) = 2(0.49) = 0.98

8 0
3 years ago
Solve the system of equations. <br> 9x+11y=2 <br> 3x+4y=4
Ronch [10]

Answer:

X= -12 Y=10

Step-by-step explanation:

4 0
2 years ago
A=160, b=110, C=54. What is the distance between AB?
Schach [20]

Answer:

50

Step-by-step explanation:

answer is 50

3 0
2 years ago
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