Evaluate the surface integral. S xz dS S is the boundary of the region enclosed by the cylinder y2 z2

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

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?

Answer! if you don’t mind, can you explain