Norma is running a race. Between timet = 0 min and t = '15 min, her speed is 4 miles an hour; between time t = 15 min and t = 30 min, her speed is 6 miles an hour. How far has she run? 0 2.5 miles 0 2.667 miles 0 3 miles 0 3.5 miles \fIf f(x) = cos(2x), which of the equations below describes the average rate of change of f(x) over the interval [0, 5]? [cos(2.5)]-[cos(2-0)] 5-0 o S cos (2x) da so So sin (2x) dx [cos(5)]-[cos(0)] 5-0If x) 2 tan 1 2 .13, which of the equations below describes the average value of x} over the interval [0, 2]? \fWhat is the average value of {(31) between 1:: = 0 and x = 11 fer x} = 2 ein(x}? 0 Ear 9'? W O 2w+2 '37 0 2w 2 1 An object moves along a path with a velocity aft) = Et2 t, and the initial position of the object is x(0) = 2. What is the equation for the position of the object when the acceleration is zero? 0 11613 u) do. 0 2f01(%u2 'u) do 0 2+1; en? u) du O 2+f01(%u2 'u) do An object is moving with v(t) = 2 sin(t) and the position X(0) = 1. What is the position of the object at t = 5? O 3.667 O 2.433 O 2.291 O 1.291