Find the magnitude of the steady-state response of the system whose system model is given by dx (t) / dt+x (t) =f(t), where f(t) = 2cos6.8t. Keep 3 significant figures.

I think I need help with the algebra in here.  how do you arrive at 3/4 R1 .  Also it os still unclear to me how do you set up the equation (multiply resistors on top/adding them at bottom)

Convert the following number from Gray code BCD code: 1001 Please show all the steps.

R148 R149 R150 If R148 is 18 Ohms, R149 is 13 Ohms, R150 is 25 Ohms, and there is 4 Amps flowing through R150, what is the current through R148? Please show 3 decimal places and don't include units in your answer (i.e. don't include A in your answer).

please type so that i can read your solution