The probability of sandy flipping a coin twice and getting heads both times is 0.25. the probability of john's spinner stopping on the color red is 1/4.
which of these events is more likely?
-sandy flips a coin twice and gets heads both times.
-john's spinner stops on the color red.
-neither. both events are equally likely.

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55

`if you have a set of parallel lines a and b cut by transversal x, if angle 1 = 167 degrees, what is angle 4 and why. also what is the measure of angle 5 and why? you need to use the names of the angle relationship and explain. ''.