The shorter sides of an acute triangle are x cm and 2x cm. the longest side of the triangle is 15 cm.
what is the smallest possible whole-number value of x?
6
7
8
9

c. live where it’s cold and icy

the answer is c on e2020, bud.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.