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3 years ago

Which of the following statements accurately describes the early history of digital recording?

Computers and Technology

1 answer:

Alchen [17]3 years ago

6 0

I would like to say that it was D. If I am not correct, try asking this in history.

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A detective agency is looking to bust an arms sale. According to available intelligence, the sale is likely to happen in one of

Paha777 [63]

Answer:

Probability Distribution={(A, 4/7), (B, 2/7), (C, 1/7)}

H(X)=5.4224 bits per symb

H(X|Y="not C")=0.54902 bits per symb

Explanation:

P(B)=2P(C)

P(A)=2P(B)

But

P(A)+P(B)+P(C)=1

4P(C)+2P(C)+P(C)=1

P(C)=1/7

Then

P(A)=4/7

P(B)=2/7

Probability Distribution={(A, 4/7), (B, 2/7), (C, 1/7)}

iii

If X={A,B,C}

and P(Xi)={4/7,2/7,1/7}

where Id =logarithm to base 2

Entropy, H(X)=-{P(A) Id P(A) +P(B) Id P(B) + P(C) Id P(C)}

=-{(1/7)Id1/7 +(2/7)Id(2/7) +(4/7)Id(4/7)}

=5.4224 bits per symb

if P(C) =0

P(A)=2P(B)

P(B)=1/3

P(A)=2/3

H(X|Y="not C")= -(1/3)Id(I/3) -(2/3)Id(2/3)

=0.54902 bits per symb

4 0

2 years ago

1. Write a generic method that compares its 2 arguments using the equals method and returns true if they are equal and false oth

Ganezh [65]

Answer:

Explanation:

The following piece of code is written in Java. It creates the method as requested that takes in two generic objects and compares them using the .equals() built in Java method. This method will return True if the objects are identical or False if they are not. A test case is used in the code and the output can be seen in the attached image below.

public static <T> boolean comparePerez(T a, T b) {

return a.equals(b);

}

5 0

3 years ago

(tco 3) what vbscript boolean operator could be used to replace the nested selection structure in this pseudocode? if empmedical

Leto [7]

You want both conditions to be true, so you can "And" them.
In vbscript, the and is written as "And" (not as && like other languages), so you get:

<span>If (empmedicalins = "y") And (empdentalins = "y") Then
print empidnumber, emplastname, empfirstname
Endif</span>

3 0

2 years ago

Using the college registration example from section 6.7.3 as a starting point, do the following:

Arada [10]

Answer:

Explanation:

NCLUDE Irvine32.inc

TRUE = 1

FALSE = 0

.data

gradeAverage WORD ?

credits WORD ?

oKToRegister BYTE ?

str1 BYTE "Error: Credits must be between 1 and 30" , 0dh,0ah,0

main PROC

call CheckRegs

exit

main ENDP

CheckRegs PROC

push edx

mov OkToRegister,FALSE

; Check credits for valid range 1-30

cmp credits,1 ; credits < 1?

jb E1

cmp credits,30 ; credits > 30?

ja E1

jmp L1 ; credits are ok

; Display error message: credits out of range

E1:

mov edx,OFFSET str1

call WriteString

jmp L4

L1:

cmp gradeAverage,350 ; if gradeAverage > 350

jna L2

mov OkToRegister,TRUE ; OkToRegister = TRUE

jmp L4

L2:

cmp gradeAverage,250 ; elseif gradeAverage > 250

jna L3

cmp credits,16 ; && credits <= 16

jnbe L3

mov OkToRegister,TRUE ; OKToRegister = TRUE

jmp L4

L3:

cmp credits,12 ; elseif credits <= 12

ja L4

mov OkToRegister,TRUE ; OKToRegister = TRUE

L4:

pop edx ; endif

ret

CheckRegs ENDP

END main

8 0

3 years ago

if a person walks 10 metres due to south in 10 seconds 10 due east in the next 10 seconds and transmitted you're not in the next

Scorpion4ik [409]

Answer:

$\frac{1}{3}\ m/s$

Explanation:

The computation of the velocity by using the following formula is

As we know that

$Velocity = \frac{Displacement}{Total\ time\ taken}$

where,

Displacement is 10 meters

Total time taken is 30 seconds

Now placing these values to the above formula

So, the velocity of Dash is

$= \frac{10\ meters}{30\ seconds}$

$= \frac{1}{3}\ m/s$

We simply applied the above formula so that we can get the velocity and the same is to be considered

5 0

2 years ago