the rule (x, y) + (-x, y) maps a abc to a a'b'c'.
which statement correctly describes the relationship between a abc and a abc?
the triangles are not congruent because a a'b'c' is a translation of a abc, and a
translation is not a rigid motion.
o
the triangles are congruent because a a'b'c' is a reflection of a abc , and a
reflection is a rigid motion

fil-
the triangles are not congruent because a a'b'c' is a reflection of a abc,
reflection is not a rigid motion.
the triangles are congruent because a a'b'c' is a rotation of a abc, and a rotation
is a rigid motion.

tropical storm katrina, and it made landfall between miami and fort lauder-dale, florida, as a category 1 hurricane (a storm that, on the saffir-simpson scale, exhibits winds in the range of 74–95 miles per hour [119–154 km per hour]). sustained winds of 70 miles per hour (115 km per hour) lashed the florida peninsula, and rainfall totals of 5 inches (13 cm) were reported in some areas. the storm spent less than eight hours over land. it quickly intensified when it reached the warm waters of the gulf of mexico.

this should answer you're question

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.