A box contains 100 balls, of which r are red, with r < 100. Suppose that the balls are drawn from the box one at a time, at random, without replacement. Determine the probability that the first ball is drawn will be red.

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

M.xyz =radians. covert this radian measure to its equivalent measure in degrees.