Let f be the function given by f(x) = x + x + 1 x − 1 . Find and simplify f(a + 1).

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76

2,10,-50 next two numbers geometric sequence

The computer that controls a bank's automatic teller machine crashes a mean of 0.6 times per day. what is the probability that, in any seven-day week, the computer will crash less than 5 times? round your answer to four decimal places