find the probability that a randomly selected point withing the circle falls in the red shaded area r=4 2.5 cm 3 cm can someone tell me the answer please.

What are correct trigonometric ratios that could be used to determine the length of ln

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

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.