X+2y=12
-x=-y-6
how do you solve using substitution method

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.

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585