The endpoints of jk are j(-25,10) and k(5,-20). what is the y-coordinate of point l, witch decides jk the into a 7: 3 ratio?

5- (-25) = 30 which is the x distance

30 * 7/10 = 21

-25+21 = -4  the x coordinate  

110--20 = 30 which is the y distance

30 * 7/10 =21

10 -21 = -11 is the y coordinate

(-4, -11)  is the point to split the segment into a 7:3 ratio

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

well my understanding of this question is they want you to use the y=14.1x -2.3 and put the coordinates they gave you onto the line segment of   y=14.1x -2.3

step-by-step explanation: