question archive A 17?-foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 9 feet from the base of the building
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A 17?-foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 9 feet from the base of the building. How high up the wall does the ladder? reach?
The ladder reaches ? feet up the wall. ?(Round to the nearest? hundredth.)