9. If f(1)=8 and f(n)={f(n-1)+2 then which of the following is the value of f(3)? (1) 5
(3) 3
(2) 7
(4) 6

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

In angle pqr find the measure of