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lesya692 [45]
3 years ago
13

Ray has to type an invoice using the QWERTY keyboard. Along with letters and numbers, he also has to insert the dollar sign. Whi

ch keys should Ray use to type the dollar sign?
Computers and Technology
1 answer:
olganol [36]3 years ago
4 0

Answer:

Shift and 4 at the same time, or hold shift and press 4.

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Assume the variable myWord references a string. Write a statement that uses a slicing
givi [52]

Answer:

"myWord[-5:]"

Explanation:

So whenever you slice a string, the syntax in python is expressed as:

string[a:b:c]

where a=start index (this is included in the sliced string)

b = end index (this is excluded from the sliced string)

c = increment

If any of these are included, they are set to default values, where a=0, b=len(string), and c=1.

The increment isn't necessary here, and it's just so you know the syntax a bit more

Anyways, I'm assuming when the question asks to display "the last 5 characters in the string" it means in order? e.g "abcdefghijk" -> "ghijk" and not "abcdefghijk" -> "kjihg"

The last piece of information to know is what a negative index represents.

For example if I have the piece of code

"

string = "hello world"

print(string[-1])

"

This will output "d", and the negative 1 represents the last letter. If you did -2, it would output the 2nd to last letter and so on.

So to print the last 5 characters, we simply use the -5 as the starting index.  

"

string = "hello world"

print(string[-5:])

"

This will print "world" or in other words, the last 5 letters. The reason for this is because the -5 in the first spot means the starting index is the 5th to last letter, and when you have the : after the -5, this is the way of telling python you're slicing the string, and not indexing 1 character. You don't need to include another value after that, because it will default to the last index of the string, or more specifically the last index + 1, since the last index is still included.

So the last thing to know, is that if the string isn't greater than 5 characters, it just prints the entire string, and no errors are raised. You can test this out your self as well. So whenever you have a string that's less than 5 characters the entire string is outputted.

3 0
2 years ago
Describe how a black and white image could be represented in binary
SIZIF [17.4K]

Answer:

Each pixel in an image is made up of binary numbers. If we say that 1 is black (or on) and 0 is white (or off), then a simple black and white picture can be created using binary. To create the picture, a grid can be set out and the squares coloured (1 – black and 0 – white).

5 0
3 years ago
Read 2 more answers
What is the simplest way to permanently get rid of an unwanted file? A. Go to the Start menu and then delete the file. B. Erase
vazorg [7]

C. Send it to the recycle bin and empty the recycle bin
7 0
4 years ago
Which body of water is most likely to be a marine ecosystem?
Sophie [7]

Answer:

The body of water that is most likely to be a marine ecosystem would be an estuary.

Explanation:

An estuary is a widened, often funnel-shaped mouth of a river, where fresh river water and salt sea water are mixed and thus brackish water is created, and where tidal differences can be observed. When a river flows as a system of branches, it is called a delta.

Estuaries often have a great natural value. They typically consist of swallows and salt marshes that are very rich in invertebrates and thus have a great attraction for birds, among other things.

4 0
3 years ago
Which of the following documents should beprepared before the commencement of a softwareproject?
ludmilkaskok [199]

Answer:

Software requirement specification

Explanation:

requirement specification is the first step before proceeding with any project.

we should validate our output at all phases with software requirement specification

7 0
3 years ago
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