Complete the square
x²-8x-65=0

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

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

How many grams the dog will eat in 3 days?