Suppose a railroad rail is 6 kilometers and it expands on a hot day by 19 centimeters in length. approximately how many meters would the center of the rail rise about the ground.

In triangle abc segment de is parallel to the side ac . (the endpoints of segment de lie on the sides ab and bc respectively). find de, if ac=20cm, ab=17cm, and bd=11.9cm;

Which composition of similarity transformations maps polygon abcd to polygon a'b'c'd'? a dilation with a scale factor less than 1 and then a reflection a dilation with a scale factor less than 1 and then a translation a dilation with a scale factor greater than 1 and then a reflection a dilation with a scale factor greater than 1 and then a translation

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?