ayuda porfa, La impedancia eléctrica es la oposición al paso de la corriente eléctrica que circula a través de un conductor y se expresa utilizando números complejos. Si un gran circuito está formado por dos circuitos cuyas impedancias son z 1 = 3 - 4i ohmios y z 2 = 7 + 5i ohmios, ¿cuál es la impedancia total del gran circuito?

If your score on your next statistics test is converted to a z score, which of these z scores would you prefer: minus2.00, minus1.00, 0, 1.00, 2.00? why? a. the z score of 2.00 is most preferable because it is 2.00 standard deviations above the mean and would correspond to the highest of the five different possible test scores. b. the z score of 0 is most preferable because it corresponds to a test score equal to the mean. c. the z score of minus2.00 is most preferable because it is 2.00 standard deviations below the mean and would correspond to the highest of the five different possible test scores. d. the z score of minus1.00 is most preferable because it is 1.00 standard deviation below the mean and would correspond to an above average