Posted by ashley on Wednesday, February 10, 2010 at 9:09pm.
The average number of radioactive particles passing through a counter during 1 millisecond in a lab experiment is 4. What is the probability that more than 2 milliseconds pass between particles?

college  D, Wednesday, February 10, 2010 at 9:28pm
One side of a triangle is three times the shortest side. The third side is 7 feet more than the shortest side. The perimeter is 62 feet. Find all three sides.

algebra  ashley, Wednesday, February 10, 2010 at 9:45pm
x= shortest side
3x= side one
x+7 = third side
then you add all these together and set them equal to 62 and solve for x.