Write the vector u as a sum of two orthogonal vectors, one of which is the vector projection of u onto v, projvu u = (9,0), v = (0,-9)

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

Atriangle has a side lengths of 18cm, 80 cm and 81cm. classify it as acute obtuse or right?

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.