CREATE TABLE table_79747 ("Year" FLOAT, "Entrant" TEXT, "Chassis" TEXT, "Engine" TEXT, "Points" FLOAT)

In 1970, what entrant had a cosworth v8 engine?
SELECT "Entrant" FROM table_79747 WHERE "Engine" = 'cosworth v8' AND "Year" = '1970'
SELECT "Entrant" FROM "table_79747" WHERE "Engine" = 'cosworth v8' AND "Year" = '1970'