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neonofarm [45]
3 years ago
13

PLS HELP!!

Computers and Technology
1 answer:
Vera_Pavlovna [14]3 years ago
7 0

Answer:

A. f/2.8

Explanation:

A hole within a lens, through which light travels into the camera body is referred to as the APERTURE.

It is typically expressed as "f number" in photography. Basically, a fast lens is any lens with a maximum aperture of f/4 or more i.e f/2.8 , f/1.8 , f/1.4 etc.

The smaller the number is the bigger the maximum aperture is. Hence, the bigger the maximum aperture the more light that your lens will allow in.

Therefore, the ideal aperture settings for a fast lens is f/2.8

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) Perform error checking for the data point entries. If any of the following errors occurs, output the appropriate error message
emmainna [20.7K]

Answer:

In Python:

entry = input("Sentence: ")

while True:

   if entry.count(",") == 0:

       print("Error: No comma in string")

       entry = input("Sentence: ")

   elif entry.count(",") > 1:

       print("Error: Too many comma in input")

       entry = input("Sentence: ")

   else:

       ind = entry.index(',')+1

       if entry[ind].isnumeric() == False:

           print("Comma not followed by an integer")

           entry = input("Sentence: ")

       else:

           break

print("Valid Input")

Explanation:

This prompts the user for a sentence

entry = input("Sentence: ")

The following loop is repeated until the user enters a valid entry

while True:

This is executed if the number of commas is 0

<em>    if entry.count(",") == 0:</em>

<em>        print("Error: No comma in string")</em>

<em>        entry = input("Sentence: ")</em>

This is executed if the number of commas is more than 1

<em>    elif entry.count(",") > 1:</em>

<em>        print("Error: Too many comma in input")</em>

<em>        entry = input("Sentence: ")</em>

This is executed if the number of commas is 1

   else:

This calculates the next index after the comma

       ind = entry.index(',')+1

This checks if the character after the comma is a number

       if entry[ind].isnumeric() == False:

If it is not a number, the print statement is executed

<em>            print("Comma not followed by an integer")</em>

<em>            entry = input("Sentence: ")</em>

If otherwise, the loop is exited

<em>        else:</em>

<em>            break</em>

This prints valid input, when the user enters a valid string

print("Valid Input")

Note that: entry = input("Sentence: ") <em>is used to get input</em>

4 0
3 years ago
unlike the barcode-based tracking system, a radio frequency identification system offers a .
Over [174]

Unlike the barcode-based tracking system, a radio frequency identification system offers a <u>no-contact, no-line-of-sight reading, and tracking system</u>.

What is a tracking system?

A tracking system often referred to as <u>a locating system, is used to keep </u><u>track </u><u>of people or objects in motion and provide an accurate, timely sequence of location data for processing</u>. Human tracking should be understood; more information is provided below.

<u>Any stolen car can be kept </u><u>track </u><u>of across the nation</u> with the use of a tracking system, ensuring that it is returned as soon as possible. A tracking system is a crucial tool for making sure your personnel is safe.

To learn more about tracking system, use the link given
brainly.com/question/15237193
#SPJ4

8 0
1 year ago
Which 1898 film did George Melies create using camera trickery to create a illusion in which we now
8_murik_8 [283]

Answer:

four heads are better than one

Explanation:

4 0
3 years ago
Structured walk-throughs take place throughout the SDLC and are called _____ reviews, depending on the phase in which they occur
Tpy6a [65]

Answer:

design

Explanation:

Based on the information provided within the question it can be said that these are called design reviews. This is one of the most important parts of the development of a system. This focuses more on answering how something is going to be done in the system as opposed to answering what is going to be done for the system depending on the questions asked in the analysis phase.

5 0
3 years ago
This method adds newValue to the list at the specified index. If the index is invalid for the list, throw an IndexOutOfBoundsExc
EleoNora [17]

Answer:

i dont know

Explanation:

7 0
2 years ago
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