Choose all the answers that apply. Without decomposers: dead organisms would pile up, matter would not be recycled, chemical nutrients would not return to the soil, an ecosystem is unbalanced, the sun's energy cannot be used

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?