the number f of miles a ship is from its destination x hours after starting a voyage is given by f(x)=80-20x. the number f of miles a submarine is from its destination x hours after leaving port is shown in the graph below. state the distance and length of time of voyage.

Aparallel system functions whenever at least one of its components works. consider a parallel system of n components, and suppose each component works independently with probability 0.5. find the conditional probability that component n works given that the system is working

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm