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ICE Princess25 [194]
3 years ago
15

Suppose I have two DFAs D1, D2 and I perform the product construction on them to get a DFA for the union of their languages. Wha

t is always true about the resulting DFA D?
(a) The number of states in D is equal to the maximum of the number of states in both of D1, D2.
D.) If L(D1) = ∅, then L(D) = L(D2).
Computers and Technology
1 answer:
Musya8 [376]3 years ago
8 0

Answer:

Explanation:

If L(D1) = L(D2), the D has every state being final

If L(D1) = L¯(D2), the D has every state being final

If L(D1) = ∅, then L(D) = L(D2).

If L(D1)=Σ, L(D) = L(D2)

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Well if you add it up , if one cup of coffe is $1, then in one year it would be $365 on coffe.
7 0
3 years ago
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When selecting font size in a document, ____ points equals one-inch-tall text?
IgorC [24]
Hello <span>Jhigg4685 
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3 0
3 years ago
A laptop computer has two internal signals: An unplugged signal, which is '1' if the laptop's power supply is connected, and '0'
Brums [2.3K]

Answer:

The correct usage is a NOR gate which is indicated in the explanation.

Explanation:

The truth table for the given two signals, namely

p=unplugged signal

q=low battery signal

can  form a truth table of following form

Here p has 2 states

1 if the power supply is connected

0 otherwise

Similarly q has 2 states

0 if the battery has reached almost zero state

1 otherwise

As the condition for the Hibernate Signal is given as to only activate when the battery is low and the power supply is not connected. This indicate that the value of Hibernate signal should be 1 when both p and q are 0.

Using this condition, the truth table is formed as

unplugged signal | low battery signal |  Hibernate Signal

            0               |                 0             |             1

            0               |                 1              |             0

            1                |                 0             |             0

            1                |                 1              |             0

Now the truth table of NOR is given as

a    |     b    |  a or b   |   ~(a or b)

0    |     0    |      0      |        1

0    |     1     |      1       |        0

1     |     0    |      1       |        0

1     |     1     |      1       |        0

This indicates that the both truth tables are same thus the NOR gate is to be used for this purpose.

6 0
3 years ago
should variables that contain numbers always be declared as integer or floating-point data types? why or why not? name potential
Stells [14]

No, it is not necessary that variables that contain numbers should always be declared as integer or floating-point data types.

It is not necessary that variables that contain numbers should be declared as integer and floating point data types. Because number can be declared with different data types.  As we know that data type is a vital aspect in programming. It describes the type of a value that is contained in a variable. It is the data type based on which memory is allocated to a number or any type of variables.

Numbers can be whole decimal/fractional, signed, unsigned, small, and long. Simply, they exist in a variety of values. According to their values range, the amount of memory is reserved.

Different programming languages offer different data types to store numbers, depending on their types and size. Let’s consider some examples of data types used in programming languages in order to declare variables holding numbers.

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  • To deal with number type variables, Java has six predefined data types, such as int, long, short, byte, float, and double.
  • JavaScript uses a single data type called 'number' to declare numbers.
  • In C++, two fundamental data types, int and float, are used to represent numeric variables. But C++ is not only limited to these two data types. The data type char can also store numbers. Other data types for declaring numbers as variables are derived from int, float and char, such as short int, long int, signed int, unsigned int, double, long double, signed char, unsigned char etc. etc.

So in concluding remarks, declaring a number type variable is not only limited to using integers and floating-points data types. Rather it entirely depends on the respective programming language, and size and type of the number to be stored in the variable.

You can learn more about data types at

brainly.com/question/13438922

#SPJ4

6 0
2 years ago
A ____ is a key-dependent, one-way hash function that allows only specific recipients(symmetric key holders) to access the messa
Alexxx [7]

Answer: (C) MAC

Explanation:

MAC is stand for the message authentication code and it is one of the key dependent hash function. Message authentication provide the data integrity and also the origin of data authentication.

  • It basically allow the specific recipients known as the holder of the symmetric key.
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On the other hand, all the options are incorrect as they are not the key dependent hash function.

Therefore, Option (C) is correct.

7 0
3 years ago
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