Anoted psychic was tested for esp. the psychic was presented with 260 cards face down and was asked to determine if the card was one of 5 symbols: a star, cross, circle, square, or three wavy lines. the psychic was correct in 70 cases. let p represent the probability that the psychic correctly identifies the symbol on the card in a random trial. assume the 260 trials can be treated as an srs from the population of all guesses. to see if there is evidence that the psychic is doing better than just guessing, we test h0: p=0.2 ha: p> 0.2

Drag and drop the answers into the boxes to complete this informal argument explaining how to derive the formula for the volume of a cone. since the volume of a cone is part of the volume of a cylinder with the same base and height, find the volume of a cylinder first. the base of a cylinder is a circle. the area of the base of a cylinder is , where r represents the radius. the volume of a cylinder can be described as slices of the base stacked upon each other. so, the volume of the cylinder can be found by multiplying the area of the circle by the height h of the cylinder. the volume of a cone is of the volume of a cylinder. therefore, the formula for the volume of a cone is 1/3 1/2 1/3πr^2h 1/2πr^2h πr^2h πr^2

What expression is equivalent to 42x-56y

Which number line represents the solution set for the inequality -1/2x> 24?