Three students are finding the sum of the two expressions below by grouping like terms and then combining like terms. (9x + 4y) + (2x - 6y)
Student A
Student B
Student C
Group like terms
9.2 - 2. + 4y - 6y 9x + 2x - 4y - 6y 9x + 2x - 4y + 6y
Combine like terms 7x - 2y
11x - 10y
11x + 2y
Which student added the two expressions correctly?
Student A
Student B
O Student C
O None

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

Zroms according to the synthetic division below, which of the following statements are true? check all that apply. 352 -2 6 -12 12 2 4 0 i a. (x-3) is a factor of 2x2 - 2x - 12. b. the number 3 is a root of f(x) = 2x2 - 2x - 12. c. (2x2 - 2x - 12) = (x + 3) = (2x + 4) d. (2x2 - 2x-12) - (x-3) = (2x + 4) e. (x+3) is a factor of 2x2 - 2x - 12. o f. the number -3 is a root of fx) = 2x2 - 2x - 12. previous

X+ y = 5 ; x - y =3 solve using linear combination