Lyra is canoeing with her scout troop. She needs to paddle north across the river to catch up to her troop where they
are having a picnic lunch on the opposite shore. The river's current travels east at 3 ft per second, and she can paddle
at 6ft per second.
By modeling this situation with vectors, a right triangle can be created.
1. Lyra attempts to paddle directly across the river, perpendicular to
the current. What will Lyra's speed be as she travels? Answer in
feet per second
2. What direction does Lyra travel? Answer in degrees north of east.

The heaviest 16% of all men in weight weigh more than how many pounds ?

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."

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9