What is the solution of 3 + x = 9?

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle. he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1