There are 4 marbles in a bag: one red, one green, one blue, and one orange. What is the probability of reaching into the bag and selecting a blue marble, then an orange marble?

The weights of players in a basketball league are distributed normally. the distance (d) of each player's weight (w) from the mean of 86 kilograms was computed as follows: d = |w - 86| if d is greater than 7 for approximately 5% of the players, what is the approximate standard deviation of the players' weights? a. 1.75 kilograms b. 3.5 kilograms c. 4.3 kilograms d. 7 kilograms

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

The figure below shows rectangle abcd and the triangle eca on a coordinate plane.which of the following expressions represents the perimeter of triangle of triangle eca in units