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Sergeu [11.5K]
2 years ago
9

Name the technique used to separate the mixture of colours in black ink ​

Computers and Technology
2 answers:
Savatey [412]2 years ago
8 0
Since the water carries the different pigments at different rates, the black ink separates to reveal the colors that were mixed to make it. In this experiment, you're using a technique called chromatography.

So the answer is chromatography
Nitella [24]2 years ago
6 0

Answer:

chromatography

hope it helps

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By clicking the update automatically<span> checkbox when inserting the date and/or time into a Word document... hope this helps!!!!</span>
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Write a simple hello world program in python 3
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print("hello world")

Explanation:

a hello world program is simply a program that prints out hello world.

for this you would need to remember to have the same number of brackets on each side and to write print. Also remember when printing to include speech marks.

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Libby wrote an email to her friend. She pressed Shift and the number key 2 together to enter the email address. Which symbol did
exis [7]

When Libby wrote the email to her friend, she typed the '@' symbol. When pressing SHIFT and 2 together, it pastes this aforementioned symbol. However, there isn't any specific name for the symbol. As a matter as fact, there are several names that this symbol goes by.

The most famous name this symbol is called is the "at symbol" or the "at sign". In terms of a formal name, "commercial at" would be a good one.

Here's an example with the symbol:

[email protected]

This is essentially telling the email server where to send your email. From this, they'll know it's located at brainly.com! It's pretty neat.

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This is going to get taken down but I dont care add me on discord cause ima bored<br> -Red-#9847
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I WILL

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6 0
3 years ago
Determine whether or not the following pairs of predicates are unifiable. If they are, give the most-general unifier and show th
Evgen [1.6K]

Answer:

a) P(B,A,B), P(x,y,z)

=> P(B,A,B) , P(B,A,B}  

Hence, most general unifier = {x/B , y/A , z/B }.

b. P(x,x), Q(A,A)  

No mgu exists for this expression as any substitution will not make P(x,x), Q(A, A) equal as one function is of P and the other is of Q.

c. Older(Father(y),y), Older(Father(x),John)

Thus , mgu ={ y/x , x/John }.

d) Q(G(y,z),G(z,y)), Q(G(x,x),G(A,B))

=> Q(G(x,x),G(x,x)), Q(G(x,x),G(A,B))  

This is not unifiable as x cannot be bound for both A and B.

e) P(f(x), x, g(x)), P(f(y), A, z)    

=> P(f(A), A, g(A)), P(f(A), A, g(A))  

Thus , mgu = {x/y, z/y , y/A }.

Explanation:  

Unification: Any substitution that makes two expressions equal is called a unifier.  

a) P(B,A,B), P(x,y,z)  

Use { x/B}  

=> P(B,A,B) , P(B,y,z)  

Now use {y/A}  

=> P(B,A,B) , P(B,A,z)  

Now, use {z/B}  

=> P(B,A,B) , P(B,A,B}  

Hence, most general unifier = {x/B , y/A , z/B }  

b. P(x,x), Q(A,A)  

No mgu exists for this expression as any substitution will not make P(x,x), Q(A, A) equal as one function is of P and the other is of Q  

c. Older(Father(y),y), Older(Father(x),John)  

Use {y/x}  

=> Older(Father(x),x), Older(Father(x),John)  

Now use { x/John }  

=> Older(Father(John), John), Older(Father(John), John)  

Thus , mgu ={ y/x , x/John }  

d) Q(G(y,z),G(z,y)), Q(G(x,x),G(A,B))  

Use { y/x }  

=> Q(G(x,z),G(z,x)), Q(G(x,x),G(A,B))

Use {z/x}  

=> Q(G(x,x),G(x,x)), Q(G(x,x),G(A,B))  

This is not unifiable as x cannot be bound for both A and B  

e) P(f(x), x, g(x)), P(f(y), A, z)  

Use {x/y}  

=> P(f(y), y, g(y)), P(f(y), A, z)  

Now use {z/g(y)}  

P(f(y), y, g(y)), P(f(y), A, g(y))  

Now use {y/A}  

=> P(f(A), A, g(A)), P(f(A), A, g(A))  

Thus , mgu = {x/y, z/y , y/A }.

7 0
3 years ago
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