SUPERGRAVITY AND MATRIX-THEORY DO NOT DISAGREE ON MULTI-GRAVITON SCATTERING

We compare the amplitudes for the long-distance scattering of three gr avitons in eleven dimensional supergravity and matrix theory at finite N. We show that the leading supergravity term arises from loop contri butions to the matrix theory effective action that are not required to vanish by supersymmetry. We evaluate in detail one type of diagram-th e setting sun with only massive propagators-reproducing the supergravi ty behavior.