Calculate the area of a circle with a radius of 2 cm and a circle with a radius of 4 cm. leave your answers in terms of pi.

See below in bold.

Step-by-step explanation:

Area of a circle with radius 2 cm = πr^2 =  π * 2^2 = 4π cm^2.

Area of a circle with radius  4 cm = πr^2 =  π * 4^2  = 16π cm^2.

The graph is plotted below.

One ordered pair as solution is (0, 0).

Step-by-step explanation:

Given:

The inequality is given as:

In order to plot it, we first replace '≥' by '=' sign. This gives,

Now, we plot the above line. For that, we need the x and y intercepts.

At x-intercept, y = 0. So,

The point is (5, 0)

At y-intercept, x = 0. So,

The point is (0, -5)

Now, plot these two points and draw a line passing through these two points. The graph is shown below.

Now, replace '=' by '≥' sign. Since, 'y' is greater than equal to 'x - 5'. So, the solution region is above the given including the values on the line.

Therefore, any ordered pair in the solution region is a solution of the given inequality. From the graph, one such ordered pair is (0, 0).

This can be verified from the inequality also.

So, one ordered pair is (0, 0).