Todd's friend olivia is flying her stunt plane at an elevation of 6.3 km. from the ground, todd's used to plane moving directly toward him from the west at a 49 degree angle of elevation. 3 minutes later he turns around and sees the plane at an elevation of 8.3 km moving away from him to the east at a 65 degree angle of elevation. how fast is olivia flying in kilometers / hour

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

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.