Would Greatly appreciate the help: A person stands at a window on the 9th floor of an office tower. He measures the angle of elevation to be 25 and the angle of depression to be 36 of the top and the base of a tower. The person knows that he made the measurements 40m above the ground. Determine the height of the tower to the nearest tenth of a meter.

30 determine the coefficient on x 12 y 24 x12y24 in ( x 3 + 2 x y 2 + y + 3 ) 18 . (x3+2xy2+y+3)18. (be careful, as x x and y y now appear in multiple terms! )

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?