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VMariaS [17]
2 years ago
5

A sequence of data values separated by commas can be made into a list by enclosing the sequence in what type of symbols?

Computers and Technology
1 answer:
Dovator [93]2 years ago
3 0

Answer:

square brackets [ ]

Explanation:

In python programming language a list is a data structure type that contains data values which can be of different data types separated by commas and enclosed in a pair of square brackets. in the example below, I have created a list and initialized the values

MyList = [ 2,3,4,5,"David", 2.5, 5.8].

This list contains three different data types integers, float and a string

This code below will produce the output that is attached as an image

<em>MyList = [2,3,4,5,"David"]</em>

<em>print(MyList[0])</em>

<em>print(MyList[1])</em>

<em>print(MyList[2])</em>

<em>print(MyList[3])</em>

<em>print(MyList[4])</em>

<em>Observe that list follow the zero-based indexing</em>

You might be interested in
(Package Inheritance Hierarchy) Package-delivery services, such as FedEx®, DHL® and UPS®, offer a number of different shipping o
lys-0071 [83]

Answer:

Check the explanation

Explanation:

note: code is implemented as per the main method provided:

code:

using System;

public class Package

{

string senderName11;

string senderAddress1;

string senderCity1;

string senderState1;

string senderZip1;

string recipientName1;

string recipientAddress1;

string recipientCity1;

string recipientState1;

string recipientZip1;

decimal weight1;

decimal costPerOunce1;

public string SenderName11

{

get { return senderName11; }

set { senderName11 = value; }

}

public string SenderAddress1

{

get { return senderAddress1; }

set { senderAddress1 = value; }

}

public string SenderCity1

{

get { return senderCity1; }

set { senderCity1 = value; }

}

public string SenderState1

{

get { return senderState1; }

set { senderState1 = value; }

}

public string SenderZip1

{

get { return senderZip1;}

set { senderZip1 = value; }

}

public string RecipientName1

{

get { return recipientName1; }

set { recipientName1 = value; }

}

public string RecipientAddress1

{

get { return recipientAddress1; }

set { recipientAddress1 = value; }

}

public string RecipientCity1

{

get { return recipientCity1; }

set { recipientCity1 = value; }

}

public string RecipientState1

{

get { return recipientState1; }

set { recipientState1 = value; }

}

public string RecipientZip1

{

get { return recipientZip1; }

  set { recipientZip1 = value; }

}

public decimal Weight1

{

get { return weight1; }

set

{

if (value > 0)

weight1 = value;

else

Console.WriteLine("Weight1 can't be less tha zero");

}

}

public decimal CostPerOunce1

{

get { return costPerOunce1; }

set

{

if (value > 0)

costPerOunce1 = value;

else

Console.WriteLine("Cost per ounce can't be less than zero");

)

{

SenderName11 = senderName11;

SenderAddress1 = senderAddress1;

)

{

TwoDayDeliveryFee = twoDayDeliveryFee;

}

public override decimal CalculateCost()

{

return base.CalculateCost() + TwoDayDeliveryFee;

}

OvernightDeliveryFeePerOunce = overnightDeliveryFeePerOunce;

}

public override decimal CalculateCost()

{

return (CostPerOunce1 + OvernightDeliveryFeePerOunce) * Weight1;

}

}

class TestPackages

{

static void Main(string[] args)

{

Package regularPackage = new Package

(

"Peter Anderson",

"123 Main St, Ashville, NC 27111 ",

"Ashville",

"NC 27111",

"MN 55416",

"Mary Brown",

"456 Broad St Benson, NC 27222",

"St. Petersburg",

"Benson",

"NC 27222",

160M,

0.1M

);

Console.WriteLine("\nRegular Package: ");

  Console.WriteLine(" Sender's Name: {0}",

      regularPackage.SenderName11);

  Console.WriteLine(" Sender's Address: {0}",

      regularPackage.SenderAddress1);

  Console.WriteLine(" Recipient's Name: {0}",

       regularPackage.RecipientName1);

  Console.WriteLine(" Recipient's Address: {0}",

       regularPackage.RecipientAddress1);

  Console.WriteLine(" Weight1: {0}"

, regularPackage.Weight1);

  Console.WriteLine(" Cost Per Ounce: {0:C}",

       regularPackage.CostPerOunce1);

  Console.WriteLine("Shipping Cost: {0:C}",

       regularPackage.CalculateCost());

Console.WriteLine(regularPackage.CalculateCost());

 

TwoDayPackage twoDayPackage = new TwoDayPackage

(

"Peter Anderson",

"123 Main St 123 Main St, Ashville, NC 27111",

"Ashville",

"NC 27111",

"MN 55416",

"Mary Brown",

"456 Broad St",

"St. Petersburg",

"Benson",

"NC 27222",

160M,

0.1M,

1.5M

);

  Console.WriteLine("\nTwo-Day Package: ");

  Console.WriteLine(" Sender's Name: {0}",

  twoDayPackage.SenderName11);

Console.WriteLine(" Sender's Address: {0}",

twoDayPackage.SenderAddress1);

  Console.WriteLine(" Recipient's Name: {0}",

   twoDayPackage.RecipientName1);

  Console.WriteLine(" Recipient's Address: {0}",

   twoDayPackage.RecipientAddress1);

  Console.WriteLine(" Weight1: {0}", twoDayPackage.Weight1);

  Console.WriteLine(" Cost Per Ounce: {0:C}",

   twoDayPackage.CostPerOunce1);

  Console.WriteLine(" Flat Fee: {0:C}",

   twoDayPackage.Weight1);

  Console.WriteLine(" Shipping Cost: {0:C}",

   twoDayPackage.CalculateCost());

OvernightPackage overnightPackage = new OvernightPackage

(

"Peter Anderson",

"123 Main St 123 Main St, Ashville, NC 27111",

"Ashville",

"NC 27111",

"MN 55416",

"Mary Brown",

"456 Broad St Benson, NC 27222",

"St. Petersburg",

"Benson",

"NC 27222",

160M,

0.1M,

1.5M

);

Console.WriteLine("\nOvernight Package: ");

  Console.WriteLine(" Sender's Name: {0}",

   overnightPackage.SenderName11);

  Console.WriteLine(" Sender's Address: {0}",

   overnightPackage.SenderAddress1);

  Console.WriteLine(" Recipient's Name: {0}",

   overnightPackage.RecipientName1);

  Console.WriteLine(" Recipient's Address: {0}",

   overnightPackage.RecipientAddress1);

  Console.WriteLine(" Weight1: {0}",

   overnightPackage.Weight1);

  Console.WriteLine(" Cost Per Ounce: {0:C}",

   overnightPackage.CostPerOunce1);

  Console.WriteLine(" Additional Cost Per Ounce: {0:C}",

   overnightPackage.OvernightDeliveryFeePerOunce);

  Console.WriteLine(" Shipping Cost: {0:C}",

   overnightPackage.CalculateCost());

Console.WriteLine(overnightPackage.CalculateCost()); Console.ReadKey();

}

}

The Result can be seen below:

8 0
2 years ago
Translate each of these statements into logical expressions using predicates, quantifiers, and logical connectives. a) Something
yKpoI14uk [10]

Answer:

Let P(x) = x is in the correct place

Let Q(x) =  x is in the excellent place

R(x) denotes the tool

Explanation:

a) Something is not in the correct place.

P(x) is that x is in the correct place so negation of ¬P(x) will represent x is not in the correct place. ∃x is an existential quantifier used to represent "for some" and depicts something in the given statement. This statement can be translated into logical expression as follows:

                                                    ∃x¬P(x)

b) All tools are in the correct place and are in excellent condition.

R(x) represents the tool, P(x) represents x is in correct place and Q(x) shows x is in excellent place. ∀ is used to show that "all" tools and ∧ is used here because tools are in correct place AND are in excellent condition so it depicts both P(x) and Q(x). This statement can be translated into logical expression as follows:

                                       ∀ x ( R(x) → (P(x) ∧ Q(x))

c) Everything is in the correct place and in excellent condition.

Here P(x) represents correct place and Q(x) represents excellent condition ∀ represent all and here everything. ∧  means that both the P(x) and Q(x) exist. This statement can be translated into logical expression as follows:

                                              ∀ x (P(x) ∧ Q(x)

7 0
2 years ago
Select the correct text in the passage.
sergejj [24]

Answer:

2. Scientists use seismometers to measure the earthquake activity that occurs beneath a volcano. They then predict the eruption of that volcano.

Explanation:

The options are:

1. Before a volcano erupts, earthquake activity beneath the volcano decreases.2. Scientists use seismometers to measure the earthquake activity that occurs beneath a volcano. They then predict the eruption of that volcano.3. When a volcano erupts, the amount of carbon dioxide and sulfur dioxide emitted decreases. 4.Scientists measure the amount of these gases to determine the amount of magma present in the volcanic reservoir.

The answer is certainly 2. as seismometers are being used to find out the details of the earthquake activities which occur inside a volcano. And with this information, the volcanologists then predict the eruption of that particular volcano. Hence, the 2nd option does not have any factual errors, and all the others have factual errors.

5 0
2 years ago
After running the following pseudocode, what will the value of VARIABLE be? 1. Set value of VARIABLE to 5 2. Increase the value
Nutka1998 [239]

Answer:

10

Explanation:

you start with 5       5

you add 3                8

the variable is not odd so skip         8

the variable is even so add 1            9

the variable is odd so add 1              10

10

hope this helps <3

8 0
2 years ago
Create an array w with values 0, 0.1, 0.2, . . . , 3. Write out w[:], w[:-2], w[::5], w[2:-2:6]. Convince yourself in each case
larisa86 [58]

Answer:

w = [i/10.0 for i in range(0,31,1)]

w[:]  = [0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0]

w[:-2] = [0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8]

w[::5]= [0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0]

w[2:-2:6] = [0.2, 0.8, 1.4, 2.0, 2.6]

Explanation:

List slicing (as it is called in python programming language ) is the creation of list by defining  start, stop, and step parameters.

w = [i/10.0 for i in range(0,31,1)]

The line of code above create the list w with values 0, 0.1, 0.2, . . . , 3.

w[:]  = [0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0]

since start, stop, and step parameters are not defined, the output returns all the list elements.

w[:-2] = [0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8]

w[:-2] since  stop is -2, the output returns all the list elements from the beginning to just before the second to the last element.

w[::5]= [0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0]

w[::5] since  step is -2, the output returns  the list elements at index 0, 5, 10, 15, 20, 25,30

w[2:-2:6] = [0.2, 0.8, 1.4, 2.0, 2.6]

the output returns the list elements from the element at index 2  to just before the second to the last element, using step size of 6.

6 0
2 years ago
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