COMPUTERS AND TECHNOLOGY HIGH SCHOOL

The first coolant used in refrigeration was _____. ammonia Freon® ice tetrafluoroethane

Answers

Answer 1
Answer: Ice was the first coolant used in Refrigeration. 
Answer 2
Answer:

The first coolant used in refrigeration was

B.) Ice

Related Questions

Rear brakes do less work during hard braking than the front brakes because ________.
Why is information so important?
Well-produced video clips add value when they help explain a procedure or show movement that cannot be captured in a photograph.
A Compliance Program with well written policies and procedures: a. can be successful if consistently reviewed and maintained b. cannot be effective due to the sheer volume presented c. will be effective if read by management d. will not be successful without the proper oversight
The small gear that is driven by the motor shaft of a rotisserie is called a

What is the output of the following program?if<- 1
repeat
j+1
repeat
display i *j
j<- j+2
until j = 5
if <- i +1
until i = 5

Answers

What subject is this for I’m kind of lost here

Write a program to input the day of a week and print holiday if it is Saturday

Answers

DAY=int(input(“Please enter the number of day: ”))
if DAY==1:
… print(“The day is Monday and a working day”)
…elif DAY==2:
… print(“The day is Tuesday and a working day”)
…elif DAY==3:
… print(“The day is Wednesday and a working day”)
…elif DAY==4:
… print(“The day is Thursday and a working day”)
…elif DAY==5:
… print(“The day is Friday and a working day”)
…elif DAY==6:
… print(“The day is Saturday and a holiday”)
…elif DAY==7:
… print(“The day is Sunday and a working day”)
…else:
… print(“Invalid number”)

A database program helps to ____________.a. Organize, send, and retrieve e-mails quickly
b. Deliver elegant presentations to a large audience easily
c. Create professional documents with an intuitive WYSIWYG interface
d. Organize, store, and retrieve large amounts of information easily

Answers

Answer: (D) Organize, store, and retrieve large amounts of information easily

Explanation:

 The database program basically helps to store and organize the data or information easily in the database system. The database program is the backbone of the business information system and we can also retrieve the huge amount of data easily.

 It basically provide various types of functions such as we can easily create the file, update. data entry and also report the file. Now a days, the data program is famous by the term DBMS (Database management system).

Therefore, Option (D) is correct.

D. A database is software which is designed to store massive amounts of data and organize them in such a way that information can easily be worked on (added, deleted, moved, etc...).

Can a syntax error occur in a block-based code? Why or why not?

Answers

The environment stops two instructions from snapping together if they cannot be combined to form a valid assertion. Via preventing syntax problems in this way, block-based programming environments maintain the practice of writing programs by piecemeal assembly of statements.

Why do syntax errors happen?

When a programmer enters an incorrect line of code, they have made a syntax error. Missing punctuation or misspelled names are the two most common syntax mistakes. In either a compiled or an interpreted programming language, a syntax error prevents the code from running.

The source code contains a syntax error, but the object code does not. A source program is created by a programmer using a word processor or editor and written in high level language.

To learn more about Syntax error refer to:

brainly.com/question/24822807

#SPJ1

What do developers do to support software products?

Answers

Developers have basic ways in supporting their own products, one is that they keep having updates their software products to keep it up to date. Second is that the attend to the needs of the costumers such as bugs and errors that are needed to be fixed.

Write a SELECT statement that returns three columns: EmailAddress, OrderID, and the order total for each customer. To do this, you can group the result set by the EmailAddress and OrderID columns. In addition, you must calculate the order total from the columns in the OrderItems table.Write a second SELECT statement that uses the first SELECT statement in its FROM clause. The main query should return two columns: the customer’s email address and the largest order for that customer. To do this, you can group the result set by the EmailAddress column.

Answers

Answer:

Select EmailAddress,max(total) from (Select EmailAddress, OrderID, sum(total) as total from OrderItems group by EmailAddress, OrderID) group by EmailAddress

Explanation:

First step is group the rows by email and order id and sum de total of orders

Select EmailAddress, OrderID, sum(total) as total from OrderItems group by EmailAddress, OrderID

Then you use the above query as a subquery grouping by the email and selecting the max value by client

Select EmailAddress,max(total) from (Select EmailAddress, OrderID, sum(total) as total from OrderItems group by EmailAddress, OrderID) group by EmailAddress
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