How do you find the arc length of a semi-circle?

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

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.

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)