Who is correct and why? kayla is correct; the center is a fixed point in the middle of the sphere. kayla is correct; the center is a line segment from the center to the surface of the sphere. raymond is correct; the radius is the fixed point in the middle of the sphere. raymond is correct; the radius is a chord that is from the center to the surface of the sphere.

Abee with velocity vector r'(t) starts out at (5, −5, −3) at t = 0 and flies around for 5 seconds. where is the bee located at time t = 5 if 5 0 r'(u)du = 0?

Acircle has a circumference of 28.36 units what is the diameter of the circle

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.