Which function is equivalent to y=x2-10x+9?

a: y=(x+5)^2+16
b: y=(x-5)^2-16
c: y=(x-5)^2+16
d: y=(x+5)^2-16

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

Answer this 30 points and brainliest!

Will give brainliest what is the value of x? enter your answer in the box.