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3 years ago

13

Given the following Grammar and the right sentential form draw a parse tree and show the phrases, simple phrases and handle.S →

AbB | bAcA → Ab | aBBB → Ac | cBb | ca) baabccBbc b) ccBbcbbbB c)baBcBbbc

2 answers:

IRISSAK [1]3 years ago

7 0

Answer:

<u>Answer is written in attached document.</u>

Shtirlitz [24]3 years ago

4 0

Answer:

Find the answer in the attached in the order

Option a, Option c and Option b

Explanation:

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Which do you think would cause the most destruction to the organisms in a food web: taking away the carnivores, taking away the

kotegsom [21]

Answer:

Explanation:

I do not have access to your diagram but based on what I know, a food web cannot sustain itself without decomposers. They are the main guys who break down dead animals, plants into organic or inorganic nutrients which are needed by the primary producers to grow. So if decomposers are not there then producers cannot produce and thus herbivores cannot live and carnovers die out as well. Hope this makes sense.

Check out: https://www.nationalgeographic.org/encyclopedia/decomposers/

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3 years ago

g . 3. For each of the following statements Write the statement as an English sentence that does not use the symbols for quan 2.

lubasha [3.4K]

Answer:

(a)

( ∃x ∈ Q) ( x > √2)

There exists a rational number x such that x > √2.

( ∀x ∈ Q) ( ( x ≤ √2)

For each rational number x, x ≤ √2.

(b)

(∀x ∈ Q)(x² - 2 ≠ 0).

For all rational numbers x, x² - 2 ≠ 0

( ∃x ∈ Q ) ( x² - 2 = 0 )

There exists a rational number x such that x² - 2 = 0

(c)

(∀x ∈ Z)(x is even or x is odd).

For each integer x, x is even or x is odd.

( ∃x ∈ Z ) (x is odd and x is even)

There exists an integer x such that x is odd and x is even.

(d)

( ∃x ∈ Q) ( √2 < x < √3 )

There exists a rational number x such that √2 < x < √3

(∀x ∈ Q) ( x ≤ √2 or x ≥ √3 )

For all rational numbers x, x ≤ √2 or x ≥ √3.

3 0

3 years ago

6.27 LAB: Convert to binary - functions Write a program that takes in a positive integer as input, and outputs a string of 1's a

Olin [163]

Answer:

//Convert any decimal number to binary number

//Program is written in C++ Programming Language

// Comments are used for explanatory purpose

// Program starts here

#include <iostream>

using namespace std;

// Main Method declared here

int main()

{

int x;

cout<<"Enter any integer number: ";

cin>>x;

DecBin(x);

return 0;

}

// Here a function named DecBin is declared along with an integer variable, x

void DecBin(int x)

{

// Declare an array to store the resulting binary digits

int bindigit[32];

// counter for binary array

int kount = 0;

while (x > 0) {

// Store the remainder of each division in the declared array

bindigit[kount] = x % 2;

x = x / 2;

kount++;

}

// Loop to print the binary digits in reverse order

for (int j = i - 1; j >= 0; j--)

{

cout << bindigit[j];

}

}

// End of Program

4 0

3 years ago

A generator operating at 50 Hz delivers 1 pu power to an infinite bus through a transmission circuit in which resistance is igno

olga55 [171]

Answer:

critical clearing angle = 70.3°

Explanation:

Generator operating at = 50 Hz

power delivered = 1 pu

power transferable when there is a fault = 0.5 pu

power transferable before there is a fault = 2.0 pu

power transferable after fault clearance = 1.5 pu

using equal area criterion to determine the critical clearing angle

Attached is the power angle curve diagram and the remaining part of the solution.

The power angle curve is given as

= Pmax sinβ

therefore : 2sinβo = Pm

2sinβo = 1

sinβo = 0.5 pu

βo = $sin^{-1} (0.5) = 30$ ⁰

also ; 1.5sinβ1 = 1

sinβ1 = 1/1.5

β1 = $sin^{-1} (\frac{1}{1.5} )$ = 41.81⁰

∴ βmax = 180 - 41.81 = 138.19⁰

attached is the remaining solution

The critical clearing angle = $cos^{-1} 0.3372$ ≈ 70.3⁰

3 0

3 years ago

How has the use of computers in manufacturing changed the way products are produced? Give three examples.

yulyashka [42]

1.technology is more advanced
2.speakers and noise
3.quality and view including color format

6 0

3 years ago