3. Find the orthocentre of the triangle whose angular points are (0,0), (2, - 1), (- 1,3). [Note. Orthocentre is the point of intersection of the altitudes]

How does specialization enable countries to trade with one another? a country can make and sell goods affordably and buy goods that it is inefficient at making. a country can make what it chooses and sell its goods to other countries. a country can decide to buy everything it needs from other countries. a country can efficiently make goods that were once difficult to make.

How did the mali empire come to an end? a. rulers lost control of gao. b. they were conquered by axum. c. ghana took over their territory. d. sundiata was captured by mansa musa brainliest!

How did the end of the mexican american war result in growing sectionalism in the united states?