Use the equation D = 10(log I + 16), where D is the number of decibels of a sound and I is the intensity of the sound in watts per square centimeter. Round decibels to the nearest whole number. The loud sound made by an animal can be heard from hundreds of miles away. The intensity of the sound is 690 watts/cm2. Find the number of decibels of sound emitted by the animal. D =
decibels

Asays "we are both knaves" and b says nothing. exercises 24–31 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by smullyan [sm78]) who can either lie or tell the truth. you encounter three people, a, b, and c. you know one of these people is a knight, one is a knave, and one is a spy. each of the three people knows the type of person each of other two is. for each of these situations, if possible, determine whether there is a unique solution and determine who the knave, knight, and spy are. when there is no unique solution, list all possible solutions or state that there are no solutions. 24. a says "c is the knave," b says, "a is the knight," and c says "i am the spy."