If the impedance of a resistor in a circuit is Z =4+3i ohms and the impedance of a second resistor is Z2 = 8-i ohms, find the total impedance of the two resistors when they are placed in series (the sum of the two impedances).
The total impedance is Ohms.

You are responsible for designing a new city. you are inspired by pierre charles l'enfant, who laid out the streets of our nation's capital. numbered streets run north and south, and lettered streets run east and west. avenues are named after states, and they intersect the streets on a diagonal. the streets are parallel and the intersections form similar triangles. 18th st. is 454 meters long and the intersection of 18th and k st. is 207 meters from connecticut ave. if 19th st. and k st. is 385 meters from connecticut ave., what is the length of 19th st.?

What is the size of the matrix resulting from

If a is a nonzero real number then the reciprocal of a is