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MAVERICK [17]
3 years ago
12

4-One possible performance multiplication enhancement is to do a shift and add instead of an actual multiplication. Since 9 * 6,

for example, can be written (2 * 2 * 2 + 1) * 6, we can calculate 9 *6 by shifting 6 to the left 3 times and then adding 6 to that result. Show the best way to calculate 13 * 7 using shifts and adds/subtracts. Assume both inputs are 8-bit unsigned integers.
Computers and Technology
1 answer:
pychu [463]3 years ago
3 0

Answer:

Check the explanation

Explanation:

The above question can be sovled in the below step by step way:

15 can be written as 16-1 = 24 -1

Therefore, 15 *13 = (24 -1)*13

= 13*24 - 13

Now, when we left shift a number we multiply it by 2k .Where k is no of times we left shifted it.

Therefore, 13*24 = shift 13 to left 4 times

15 * 13 = shift 13 to left 4 times and subtract 13 from it.

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A(n) _____ exists when there are functional dependencies such that XY is functionally dependent on WZ, X is functionally depende
Nat2105 [25]

A partial dependency exists.

We have two types of dependency. The partial dependency and the transitive dependency.

The answer here is partial dependency. It occurs when the attribute only depends on some parts of the element. In such attribute, the primary key is the determinant.

It can be shown as;

XY→WZ , X→W and XY is the primary key or the only candidate key

Read more at brainly.com/question/9588869?referrer=searchResults

3 0
3 years ago
Read 2 more answers
can someone tell me what to do i’m kinda stuck and don’t know what he’s telling me to do pls ill give brainlist and points
Alexandra [31]

Answer:

Well a debtor is basically someone owing someone money, basically someone in debt. He’s telling cup head boy to take care of the people who owe him or someone else their or his money. Thats basically it.

8 0
3 years ago
Which strategies for effective presentations is Ian using in his opening? Check all that apply.
Fofino [41]

Answer:

A. using a hook in his opening

B.  detailing the speech’s objectives

E. letting his audience know what to expect

Explanation:

Opening his speech using a quotation is a strategy of using a narrative hook, or simply hook, by Ian. Giving a grand and enticing opening is what makes an audience to pay attention and listen to what the speaker has to say in his speech. So, first strategy used by Ian is using a hook in his opening.

Another strategy used by Ian is giving objective details of his speech. By outlining what he will be covering in his speech, Ian is letting his audience know what to expect from the speaker and his speech, and also gave details of his speech.

So, option A, B, and E are correct.

5 0
3 years ago
Read 2 more answers
Which type of systems development is characterized by significantly speeding up the design phase and the generation of informati
nydimaria [60]

Answer:

Joint Application Development (JAD)

Explanation:

Joint Application Development is a method of application development that  lay emphasis on the up-front aspect of the application development cycle whereby steady communication between the designers and the intended users of the application under development by coming together in collaborative workshop styled discussions known as JAD sessions involving the mediators, facilitator, observers, end users, experts, and developers. As such with JAD process application development result in fewer errors high quality and is completed in lesser time.

3 0
3 years ago
Write a program that allows a user to choose to roll between 1 and 100 dice between 1 and 1000 times
s344n2d4d5 [400]

Answer:

Here is a Python program that allows a user to choose to roll between 1 and 100 dice between 1 and 1000 times. The program uses a while loop to continuously prompt the user for input until they enter a valid number of dice and rolls. It also uses a for loop to simulate the dice rolls and a random module to generate random numbers for the dice rolls.

import random

while True:

   # Prompt the user for the number of dice to roll

   num_dice = int(input("Enter the number of dice to roll (1-100): "))

   if num_dice < 1 or num_dice > 100:

       continue

   # Prompt the user for the number of rolls to perform

   num_rolls = int(input("Enter the number of rolls to perform (1-1000): "))

   if num_rolls < 1 or num_rolls > 1000:

       continue

   # Simulate the dice rolls and print the results

   for i in range(num_rolls):

       roll = 0

       for j in range(num_dice):

           roll += random.randint(1, 6)

       print(f"Roll {i+1}: {roll}")

   # Ask the user if they want to roll again

   again = input("Roll again? (Y/N): ").upper()

   if again != "Y":

       break

Explanation:

In this program, we first import the random module to use its randint function to generate random numbers for the dice rolls. We then enter a while loop that will continuously prompt the user for input until they enter a valid number of dice and rolls. Within the while loop, we prompt the user for the number of dice to roll and the number of rolls to perform. If the user enters an invalid number of dice or rolls, we continue back to the beginning of the loop and prompt the user again.

Once the user has entered a valid number of dice and rolls, we use a for loop to simulate the dice rolls. For each roll, we use another for loop to roll the specified number of dice and add up the results. We then print the total for each roll. After all of the rolls have been performed, we ask the user if they want to roll again. If they enter "Y", we continue back to the beginning of the while loop to prompt them for new input. If they enter anything else, we break out of the while loop and end the program.

Overall, this program allows a user to choose to roll between 1 and 100 dice between 1 and 1000 times, and simulates the dice rolls using random numbers and loops.

8 0
1 year ago
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