Một máy bay bay với độ cao 1700m. Từ 1 đài quan sát ở mặt đất, người ta nhìn thấy 1 góc 25° so với mặt đất .Hyax tính khonage cách từ đài quan sát đến máy bay

You invested $5000 between two accounts paying 4% and 9% annual interest, respectively. if the total interest earned for theyear was $350, how much was invested at each rate? $was invested at 4% andwas invested at 9%.

One positive number is 9 more than twice another. if their product is 95, find the numbers

The length of the line segment joining the midpoints of sides ab and bc of the parallelogram abcd is 10. find the length of diagnol ac