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3 years ago

It is impossible to use a computer without a mouse. Is this statement true or false?

Computers and Technology

1 answer:

anastassius [24]3 years ago

4 0

The correct answer is C, as hot keys do perform functions a computer mouse could.

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Do you watch markiplier?

ki77a [65]

Answer: Yes

Explanation: He is cool

5 0

3 years ago

Read 2 more answers

Write the pseudocode for this flowchart

MrMuchimi

Answer:

Explanation:

class TimeToSleep() {

main bunch of stuff (string argos) {

int age;

string comedy;

bool guess;

public bool imTheMasterMethod() {

guess = true;

while (guess) {

comedy = "You forgot to put the flowchart, you meathead!";

println(comedy);

scan("%d", &age);

if (age < 18) {

println("Go to sleep kiddo!");

}

6 0

3 years ago

explain why the database system would not allow a tuple to be inserted into the database through this view

Andrej [43]

For the view of Exercise 4.18, explain why the database system would not allow a tuple to be inserted into the database through this view.
For reference
For the database of Figure 4.12, write a query to find the ID of each employee with no manager. Note that an employee may simply have no manager listed or may have a null manager. Write your query using an outer join and then write it again using no outer join at all.
OUTER JOIN
select e.ID from employee e left outer join manages m on e.ID = m.ID
where m.manager_id is null;
NO OUTER
select e.ID from employee e where e.ID not in (select m.ID from manages m) or e.ID in (select m.ID from manages m where m.manager_id is null);

6 0

3 years ago

According to the order of operation in Excel: a. Excel performs exponentiation, then multiplication, then division, then subtrac

Ilya [14]

Answer:

Option is b is correct answer. Excel performs exponentiation, then multiplication and division, then addition, and subtraction, it is correct order of operation in Excel. It is important to remember when you write any formula in Excel having different mathematical operators like +/ -/ ^/ etc, it follows a specific order and performs calculations in specific order which is termed as order of operator precedence. Each of mathematical operator has its precedence and executes in a special order set by Excel.

Explanation:

As we already know order of precedence of each mathematical operator is different in Excel. The order of operations for Excel is as follows:

Evaluate elements in parentheses.
Evaluate 'ranges' ().
Evaluate 'intersections' (empty spaces).
Evaluate 'unions' (,).
Perform negation (-).
determine percentages (%).
Perform exponentiation (^).
Perform multiplication (*) and division (/), both are of equal precedence.
Perform addition (+) and subtraction (-), both are of equal precedence.
Evaluate text operators like (&).

Perform comparisons like (=, <>, <=, >=).

Answer details

Grade: Middle

Subject: Computers and Technology

Chapter: Order of precedence of mathematical operators

Keywords: precedence in Excel, operators precedence etc

7 0

4 years ago

his exercise creates a program to convert the temperature values form Fahrenheit to Celsius for a list of 10 temperature values

MissTica

Answer:

def fahrenheit_to_celsius(temperature):

c = (temperature - 32) / 1.8

return c

temperature_list = [-10, -5, 0, 10, 20, 32, 40, 50, 60, 75.2]

i = 0

while i < 10:

print(str(temperature_list[i]) + " degrees Fahrenheit = " + str(fahrenheit_to_celsius(temperature_list[i])) + " degrees Celsius")

i += 1

Explanation:

*The code is in Python.

Create a function named fahrenheit_to_celsius that takes one parameter, temperature

Convert the temperature to celsius using the formula

Return the result of the conversion

Create a list holding ten temperatures

Create a while loop that iterates 10 times. Inside the loop, call the function to convert the each temperature in the list and print the result

5 0

3 years ago