Write words to make the expression 36÷4

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

Find the vertex of the function given below y=x^2-6x+1

Solve the given system of equations. 2y= -x+9 , 3x-6= -15