A square PORS is shown on the coordinate grid.

Which transformations will result in a figure with the same shape, with the same size, and in the same location as PQRS?

A) reflection across the x-axis followed by reflection across the y-axis

B) reflection across the y-axis followed by another reflection across the y-axis

C) clockwise rotation of 90° about the origin followed by reflection across the y-axis

D. clockwise rotation of 180° about the origin followed by reflection across the x-axis

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.

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation:

0.85% : )

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).