Of the marbles in a bag, 3 are red, 4 are blue, and 4 are green. Sandra will randomly choose one marble from the bag. Fill in the blanks in parts a and b.

(98 points) i need with 5 questions. answer definitions are welcomed, but not necessary.

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.