Find the exact real value of arcsin (the quantity negative square root of three divided by two.)

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?