What is the following sum? Assume x>0 and y20 y +2.Vx®yt + xy 1) oxy? Jy - 2xy? V 2xy. Xy+2xy? V O 4xy Nx5y8 0 2xy xy​

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

Find the perimeter of the figure shown above. a. 50 cm c. 30 cm b. 64 cm d. 60 cm select the best answer from the choices provided a b c d