Apiece of wire 7 m long is cut into two pieces. one piece is bent into a square and the other is bent into an equilateral triangle.

how much wire should be used for the square in order to minimize the total area?

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?