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Rufina [12.5K]
2 years ago
10

Write the line of code to calculate the area of a circle with radius 3 and store it in a variable called

Computers and Technology
1 answer:
zloy xaker [14]2 years ago
3 0

Answer:

area = 2.14 * 3 ** 2

Explanation:

No clue what language you use but this should be pretty universal. To find the area of a circle you use pi(r) ^ 2 or pi times radius squared

\pi r^{2}

In python it looks like this:

>>> area = 3.14 * 3 ** 2

>>> print(area)

28.26<em> <Printed text</em>

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To locate all the documents in a Mongo database that match an expression, use the _____________ method.
Lena [83]

Answer:

find()

Explanation:

When dealing with MongoDB the method that needs to be used in this scenario would be the find() method. This method basically returns all of the records that exist in the collection on which it is called, if no parameter is passed. If you pass a parameter/expression then only the records that match completely the expression will be returned to the user, otherwise nothing is returned. For example, on a database (db) we would call the following

db.find() ... This will return all records

db.find({specific}) ... This will return only the records that match specific.

4 0
3 years ago
Select all the correct answers.
inysia [295]

Answer:

Buyers can source products from anywhere in the world.

Your purchases are delivered to the location you specify.

Explanation:

E-commerce refers to the process of buying and selling goods and services through the internet or the virtual world. The economic and business transaction done through this process constitutes electronic commerce or e-commerce.

Two advantages for buyers are that the <u>buyer can source the goods and products from all over the world and also get them delivered at the location specified</u>. This allows for an easy and effortless transaction and also saves the buyer's time and energy. With things available at just a touch of an electronic screen, the buyer can get products from anywhere and get them delivered at his/ her doorstep or for that matter, anywhere he/she wished it delivered, with no extra effort from his side.

Thus, the correct answers are the third and fourth options.

4 0
3 years ago
Convert to binary 140
Ber [7]

00110001 00110100 00110000

5 0
3 years ago
Given the list of customer segments below please create a new list of the names of the segments only using(a) a for loop(b) a li
Alchen [17]

Answer:

new_segment = [ ]

for segment in segments:

   new_segment.append({'name': segment, 'average_spend': money})

print( new_segment)

Using list comprehension:

new_segment =[{'name': segment, 'average_spend': money}  for segment in segments]

Using map():

def listing(a):

   contain =  {'name': segment, 'average_spend': money}

   return contain

new_segment = [ ]

new_segment.append(map( listing, segment))

print(list(new_segment)

Explanation:

The python codes above create a list of dictionaries in all instances using for loop, for loop in list comprehension and the map function which collect two arguments .

7 0
3 years ago
Please help,
MAXImum [283]

Answer:Answer I think it might be true Explanation in the Explanation

Explanation: So I think it might be true because Ergonomics is the science of conforming the workplace and all of its elements to the worker, and in the question it says that "How a product relates to the human body", so I think it might be true, Sorry if I got this wrong.

GOOOOOOD LUUUUUCCCCCCKK

8 0
3 years ago
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