Agolf ball, thrown upwards, rises at a speed of v metres per second.
the ball reaches a maximum height of h metres.
h is proportional to the square of v.
when v = 20, h = 8
work out the maximum height reached by the golf ball when v = 35

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe

What is the mean of the data set 125, 141, 213, 155, 281