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let ∑ = {a, b}. Write a Context-Free Grammar for the language consisting of strings that have n copies of the letter a followed by n+1 copies of the letter b, where n > 0. i.e. L = {a n b n+1 , n > 0}
asked
Jan 19, 2021
Computers and Technology
college
1
answer
0
votes
101k
views
Suppose that government spending increases, shifting up the aggregate expenditure line. GDP increases from GDP1 to GDP2, and this amount is $200 billion. If the MPC is 0.8, then what is the distance between
asked
Jul 6, 2020
Business
high-school
1
answer
4
votes
99.0k
views
Read this passage from "The Read Story Behind the Discovery of Titanic's Watery Grave" Ballard and his crew erupted with cheers and applause. Someone opened a bottle of champagne for a toast, but the mood
asked
May 21, 2020
English
middle-school
2
answers
4
votes
128k
views
How are prefixes and suffixes alike? Select two options. Both are a type of affix. Both are the root of a word. Both can change a word's meaning. Both can be added to the end of a word. Both can be added
asked
Apr 25, 2020
English
middle-school
2
answers
2
votes
163k
views
A school needs 75 light bulbs. Bulbs come in packages of 8. How many packages should the school order?
asked
Feb 25, 2020
Mathematics
middle-school
1
answer
2
votes
166k
views
The United States rallied to the aid of Cuba in 1898 mainly because it had a need for revenge against Spain wanted to protect its own interests had a military base to protect wanted others to know freedom
asked
Dec 17, 2019
Chemistry
high-school
2
answers
5
votes
170k
views
What endeared the public to Will Rogers? A) his political intrigues B) his movie star status C) his humorous outlook D) his world travels
asked
Dec 1, 2019
History
high-school
1
answer
0
votes
92.4k
views
How many square inches of tin are needed to make the top of a can that is 10 inches in diameter? A) 62.8 in2 B) 78.5 in2 C) 227 in2 D) 314 in2
asked
Apr 13, 2019
Mathematics
middle-school
2
answers
3
votes
226k
views
I kinda get this problem but i just want to see what other answers people got to see if i did the question wrong.
asked
Oct 13, 2018
Mathematics
high-school
2
answers
5
votes
175k
views
The pitch of a sound wave refers to the loudness of a wave. True False
asked
Apr 24, 2018
Physics
high-school
2
answers
4
votes
34.8k
views
Which of the following is NOT true about the Pinckney Treaty?
asked
Feb 15, 2018
History
middle-school
1
answer
4
votes
78.6k
views
What is the description of the word discrimination
asked
Mar 2, 2017
Social Studies
high-school
2
answers
2
votes
85.8k
views
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