CREATE TABLE table_35780 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Record" TEXT)

What is the score of the visiting Hartford Whalers game from April 11?
SELECT "Score" FROM table_35780 WHERE "Visitor" = 'hartford whalers' AND "Date" = 'april 11'
SELECT "Score" FROM "table_35780" WHERE "Date" = 'april 11' AND "Visitor" = 'hartford whalers'