The Aztecs succeeded in developing a remarkable urban landscape. The population of Tenochtitlan and Tlatelolco combined with that of the cities and towns of the surrounding lakeshore was approximately 500,000 by 1500 C. E. Three causeways connected this island capital to the lakeshore. Planners laid out the urban center as a grid where canals and streets intersected at right angles to facilitate the movement of people and goods.

Which of the following can be inferred about the Aztecs based on the above passage?
a. The Aztecs had a strong centralized government capable or organizing a large labor force.
b. The Aztecs had a large number of slaves, and efficient techniques to minimize slave rebellion.
c. The Aztecs conquered a pre-existing capital city.
d. The Aztecs had contact with urban planners from Eurasia.

Anew moon would be directly overhead at what time

(adapted from m. m. duguid and j. a. goncalo, living large: the powerful overestimate their own height. ) in a study of power and self-image, participants were not told the true purpose of the study; instead, they believed they were participating in a business simulation. researchers randomly assigned participants to a high power(n = 44) or low-power (n = 44) condition. in the high-power condition, participants recalled a time when they had power over others, and in the low-power condition, they recalled a time when others had power over them. participants were asked to adjust the height (in centimeters) of an electronic graphical image (an avatar)of themselves to reflect their personal appearance. results indicated a statistically significant difference in participants’ perceptions of their own height across the two conditions. participants in the high-power condition created taller self-images (mean = 6.0, standard deviation = 1.5) than participants in the low-power condition(mean = 4.0, standard deviation = 1.0). * describe independent variable- describe how researchers measured the independent variable- explain why the researchers can conclude that there is a cause-and-effect relationship between the independent and dependent variables. - explain what statistical significance means in the context of the study.- explain why debriefing would be necessary in the study. -

Is made of materials that are poor conductors, such as glass, plastic, or rubber. they are used in an attempt to keep an electrical current within safe boundaries. for example, the plastic coating on an electrical wire is and is designed to keep the electricity in the wire