recently the company pfizer released results from their vaccine trial that is 90% effective. if 50 people take the vaccine, what is the probability that it will be effective for all of them

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

For each sentence below, find the value of x that makes each sentence true. (515) 5 = 25* x= (813)2 = 4* x=