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3 years ago

How was WiFi discovered?

Computers and Technology

1 answer:

postnew [5]3 years ago

7 0

Answer:

An Australian scientist by the name of John O'Sullivan was inspired by Stephen Hawking's theory of evaporating black holes and their subsequent radio waves. He set out to find them and prove the theory correct. (Wi-Fi was discovered on accident)

You might be interested in

The function below takes a single parameter number_list which is a list that can contain integers and floats. Complete the funct

Andreas93 [3]

Answer:

def getLargest(number_list):
new_list = []
for x in number_list:
if(isinstance(x, int)):
new_list.append(x)
largest = max(new_list)
return largest

Explanation:

Firstly, create a function getLargest() that take one input parameter, number_list.

The function will filter out the float type number from the list by using isinstance() method (Line 5). This method will check if a current x value is an integer. If so, the x value will be added to new_list.

Next, use Python built-in max function to get the largest integer from the new_list and return it as output.

6 0

3 years ago

whenever I try to make an account it says it can't sign me up at this time or something- can you help?-

Rus_ich [418]

Answer:

You can try emailing tech support and describing your issue. In order to get the best help as quickly as possible, try providing screenshots of what happens when you sign in or describe everything you see on the screen when the problem occurs, and quote error messages directly when possible.

5 0

3 years ago

Programmers can use sql on systems ranging from pcs to mid-size servers.

zaharov [31]

It is false that Programmers can use SQL on systems ranging from PCs to mid-size servers.

Applications for structured query language can be found in a wide range of sectors, mostly in those that deal with database-related tasks. It might be used, for example, by a data analyst to query data sets and produce precise insights. On the other hand, a data scientist might use this programming language to add data to their models.

Businesses and other organizations use SQL tools to create and modify new tables as well as access and edit information and data in their databases.

A database is a tool for gathering and organizing data. Databases can store data about people, things, orders, and other things. Many databases begin in a spreadsheet or word processor. Many firms find it beneficial to move them to a database made by a database management system as they grow larger.

SQL helps manage the data kept in databases, enabling users to get the precise data they require when they need it.

To learn more about SQL click here:

brainly.com/question/13154090

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4 0

1 year ago

What are the 49 questions for creat and edit Excel assessment

castortr0y [4]

Answer:

1. What is the keyboard shortcut key to lock cell references in a formula

2. What are the shortcut keys for Auto Sum?

3. What are the shortcut keys to insert a new row in an Excel spreadsheet?

4. What are the shortcut keys to group rows so you can expand/contract a section of data?

5. Which of the following Excel features allows you to select/highlight all cells that are formulas?

6. What are the keyboard shortcut keys to paste special?

7. Assuming cell A1 is displaying the number "12000.7789". What formula should be used to round this number to the closest integer?

8. What are the keyboard shortcut keys to edit formula in a cell?

9. What are the keyboard shortcut keys to insert a table?

10. In which tab of the ribbon can you change Workbook Views to Page Break Preview?

11. What is the best practice for financial modeling in excel?

12. Which of the following features cannot be found in the Data ribbon?

13. The shortcut keys to increase the number of decimal places are

14. What are the shortcut keys to open up the Find and Replace window?

15. Which tab of the ribbon should you go to for removing grid lines on a worksheet?

16. What is a cell address in Excel?

17. What do you mean by Relative cell referencing and Absolute cell referencing in MS Excel?

18. How can you restrict someone from copying a cell from your worksheet?

19. How is a Formula different from a Function in Excel?

20. Mention the order of operations used in Excel while evaluating formulas.

21. What is the difference between count, counta, and countblank?

22. What is the shortcut to add a filter to a table?

23. How can we merge multiple cells text strings in a cell?

24. How many report formats are available in Excel?

25. What is a Pivot Table?

26. How do you find duplicate values in a column?

27. How can you remove duplicate values in a range of cells?

28. What are the wildcards available in Excel?

29. What is Data Validation? Illustrate with an example.

30. How do you create a column in a pivot table?

31. How does a Slicer work in Excel?

32. What are macros in Excel?

33. What is the What-If Analysis in Excel?

34. What is the difference between a function and a subroutine in VBA?

35. What is the difference between This Workbook and Active Workbook in VBA?

36. How do we check whether a file exists or not in a specified location?

37. Write a VBA function to calculate the area of a rectangle.

38. Write a VBA function to check if a number is a prime number or not.

Explanation:

I think these questions are enough for you.

4 0

2 years ago

Select the two true statements about functions with parameters:

kondor19780726 [428]

Answer:

Option (B) and (C) is the correct option to the following question.

Explanation:

Because the function is the module of the program and we call that function again and again anywhere whenever we need that function in the program.

Function is used to carry out any operation which is used in the program many times and it creates the program short and simple.

For example: if we need to add or multiply two numbers many times in the program then, we create one or two functions for addition and subtraction or one program for both, when we need them we call them.

4 0

3 years ago