Khi sản xuất và bán ra x
(đvsp) thì chi phí phải trả là
( )
2 C x x x = + + 5 200 4000
(đvtt). Xác định số đvsp cần sản xuất và bán ra nếu chi phí đạt 5000 đvtt.
2. Doanh số bán hàng sau
t
năm tính từ năm 2015 được cho bởi công thức
( )
300
s t 10
t
= +
(đvsp). Tính doanh số bán hàng vào năm 2022.

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.

Here is another math questions. i will keep asking different questions. 4^2x=6

Alexandra drove from michigan to colorado to visit her friend. the speed limit on the highway is 70 miles per hour. if alexandra's combined driving time for the trip was 14 hours how many miles did alejandra drive?