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Leona [35]
2 years ago
7

The Spinning Jenny reduced the number of workers necessary to _______. a.remove cotton seeds from fibers b.pump water from the m

ine c.plant seeds in a field d.turn yarn into cloth
Computers and Technology
1 answer:
bazaltina [42]2 years ago
5 0

The answer is D: Turn yarn into cloth.

During the industrial revolution, a number of new inventions in the textile industry greatly impacted this industry. However, it was the invention of the Spinning Jenny that is credited a lot. It helped move the textile industry from homes to factories and made wool spinning easier and faster. This invention, however, impacted the labor workforce. It reduced the amount of work needed to produce yarn. One worker was able to work 8 or more spools at once and rose to 120 due to technological advancements.

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9. Which of the following are true for all regular languages and all homomorphisms? (a) h (L1 ∪ L2)= h (L1) ∩ h (L2). (b) h (L1
mixer [17]

Answer:

h (L1 ∪ L2)= h (L1) ∩ h (L2).

This is true.

There will be w ∈  (L1 ∪ L2) for any s ∈ h (L1 ∪ L2) in such a way that s=h(w)

we can assume that w ∈ L1

So In this case h(w) ∈ L (S1). Hence s ∈ L(S1)

for any s ∈ h (L1) U h(L2)

We can assume that s ∈ L(S1)

There exists w ∈ L1 such that s= h(w)

In this case it is w ∈ L1 U L2 as well.

Hence , s ∈ h (L1 U L2)

Explanation

consider  = 0,1 and  = a,b and h(0) = a , h(1) = ab

(a) Consider L1 = 10,01 and L2 = 00,11

   Now L1 ∪ L2 = 00,01,10,11

   h (L1 ∪ L2) = h(00) , h(01) , h(10) , h(11) = h(0)h(0) , h(0)h(1) , h(1)h(0) , h(1)h(1)

  = aa, aab , aba , abab

Hence h (L1 ∪ L2) = aa, aab , aba , abab .

Here h (L1) = h(10) , h(01) = h(1)h(0) , h(0)h(1) = aba , aab

Hence h (L1) = aba , aab .

Here h (L2) = h(00) , h(11) = h(0)h(0), h(1)h(1) = aa, abab

Hence h(L2) = aa, abab.

Finally Hence , h (L1 ∪ L2)= h (L1) ∩ h (L2).

5 0
2 years ago
The area of a square is stored in a double variable named area. write an expression whose value is length of the diagonal of the
cestrela7 [59]

Answer:

The correct answer to the following question will be "Math.sqrt(area*2)".

Explanation:

  • The Math.sqrt( ) method in JavaScript is used to find the squares root of the given figure provided to the feature as a variable.
  • Syntax Math.sqrt(value) Variables: this function takes a single variable value that represents the amount whose square root is to be determined.
  • The area of the figure is the number of squares needed to cover it entirely, like the tiles on the ground.

Area of the square = side times of the side.

Because each side of the square will be the same, the width of the square will only be one side.

Therefore, it would be the right answer.

5 0
2 years ago
Given two integers as user inputs that represent the number of drinks to buy and the number of bottles to restock, create a Vend
ivann1987 [24]

Answer:

In C++:

#include <iostream>

using namespace std;

class VendingMachine {

 public:

   int initial = 20;};

int main() {

 VendingMachine myMachine;

   int purchase, restock;

   cout<<"Purchase: ";  cin>>purchase;

   cout<<"Restock: ";  cin>>restock;

   myMachine.initial-=(purchase-restock);

   cout << "Inventory: "<<myMachine.initial<<" bottles";  

   return 0;}

Explanation:

This question is incomplete, as the original source file is not given; so, I write another from scratch.

This creates the VendingMachine class

class VendingMachine {

This represents the access specifier

 public:

This initializes the inventory to 20

   int initial = 20;};

The main begins here

int main() {

This creates the object of the VendingMachine class

 VendingMachine myMachine;

This declares the purchase and the restock

   int purchase, restock;

This gets input for purchase

   cout<<"Purchase: ";  cin>>purchase;

This gets input for restock

   cout<<"Restock: ";  cin>>restock;

This calculates the new inventory

   myMachine.initial-=(purchase-restock);

This prints the new inventory

   cout << "Inventory: "<<myMachine.initial<<" bottles";  

   return 0;}

8 0
2 years ago
Write a method called printRangeOfNumbers that accepts a minimum, maximum numbers as parameters and prints each number from mini
timama [110]

Answer:

The method in python is as follows:

class myClass:

    def printRange(min,max):

         for i in range(min, max+1):

              print("{"+str(i)+"} ", end = '')

           

Explanation:

This line declares the class

class myClass:

This line defines the method

    def printRange(min,max):

This line iterates from min to max

         for i in range(min, max+1):

This line prints the output in its required format

              print("{"+str(i)+"} ", end = '')

5 0
2 years ago
Identify the articulation site that allows us to nod our head ""yes"".
Luden [163]

Answer:

Occipital bone-atlas

Explanation:

The occipital bone is a bone that covers the back of your head; an area called the occiput. The occipital bone is the only bone in your head that connects with your cervical spine (neck).  The occipital bone surrounds a large opening known as the foramen magnum.

The foramen magnum allows key nerves and vascular structures passage between the brain and spine. Namely, it is what the spinal cord passes through to enter the skull. The brainstem also passes through this opening.

The foramen magnum also allows 2 key blood vessels traversing through the cervical spine, called the vertebral arteries, to enter the inner skull and supply blood to the brain

8 0
2 years ago
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