If $(x + y)^2 = 1$ and $xy = -4$, what is the value of $x^2 + y^2$? Please Help!!

The monetary value earned for selling goods or services to customers is called a.) revenue b.) assets c.) money d.) accounting

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?

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.