Y is inversely proportional to the square of x. A table of values for x and y is shown.

Х| 1 2 3 4
Y| 4 1 4/9 1/4

a) Express y in terms of x.
b) Work out the positive value of x when y = 25

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

What is the distance between the points 4,10 and -3,-14 on the coordinate plane

Yvaries directly as x. y =90 when x=6. find y when x=13