Use the drop-down menus to complete the statements. the ordered pair given in the first row of the table can be written using function notation as. f(3) is. f(x) = –5 when x is

The perimeter of ? cde is 55 cm. a rhombus dmfn is inscribed in this triangle so that vertices m, f, and n lie on the sides cd , ce , and de respectively. find cd and de if cf=8 cm and ef=12 cm. the answer is not cd=20 and de=15. i have tried that one, it does not work.