Asinging contest eliminates contestants after each round. the number of contestants that go into round n is equal to the number of contestants in the previous round raised to the n-1/n -th power, rounded to the nearest integer. the number of contestants in round 2 is 243. how many contestants will be in round 5?

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Identify the polynomial. a2b - cd3 a. monomial b. binomial c. trinomial d. four-term polynomial e. five-term polynomial