The question is on the screenshot, thanks

Point B

Step-by-step explanation:

A 180 degree turn means that the point practically reflects over the y-axis.  The number of spaces away from (0,0) that Point Q was originally is the number of spaces that Point Q will still be from (0,0).  Point Q, like already said, will just be on the other side of the y-axis.  Point Q's original coordinates were (0,-4), which means that point Q was originally 4 units away from (0,0) on the x-axis on the left side of the y-axis.  That means with a 180 degree transformation, Point Q will be still 4 units away from (0,0) on the x-axis, but on the right side of the y-axis.  The new coordinate pair for Point Q would be (0,4), which is also where Point B is plotted on the graph.  Therefore, Point B would be the new image of Point Q.

the answer is 175.4379

step-by-step explanation:

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.