Abstract Algebra Answers

4 kitchen assistants can prepare 10kg of vegetables in 45 minutes.how long will it take 20 assistance to prepare the same amounts?

Let A be a commutative ring with unity and let F be a field. Let f be a homomorphism from A onto F. Prove that ker F is a maximal ideal in A.

Let F be a field and let J be an ideal in F[X]. Prove that J is prime if and only if its generator is irreducible over F.

Let f be a homomorphism from Z to Z. Prove that either f(x) = 0 for every x in Z, or f(x) = x for every x in Z.

The tv costs $320. This is $40 more than four times what the old is worth let "w" represent what its worth. and write an equation

Hi. I have collected data on how learners with different cofnitive styles use reading strategies. I have two groups of subjects. One cognitive style of FD and one FI, each groups has three members.They have read a text and used strategies. Group one used 34 stratgies but 20 were used by subject one 10 by subject 2 and 4 by sugject 3. Group two used 19 strategies. 4 by subject 1, 10 by subject 2 and 5 by subject 3. What statestical test can I use to see if the differnce between the two groups is significant.
Thank you

number of sides of polygons

The length of an objects shadow varies directly with its height. A boy who is 4 feet 6 inches tall casts a shadow that is 6 feet 3 inches long. What is the height of a tree that casts a shadow that is 25 feet long?

Find an equation for the linear model of the situation below and use it to make a prediction.
A train is traveling north at a constant rate. At 3:00 P.M it is 55 miles north of a city. At 4:15 P.M. it is 80 miles north of the city. If d represents the distance in miles, and t represents the time in hours, how many miles north if the city will the train be at 5:45 P.M.?

At a country club, 35 people play golf, 28 swim, and 24 play tennis. Of these people, 6 play golf and tennis only, 9 play golf and swim only, and 7 play tennis and swim only. 8 people do all three activities. How many members are there all together?