The area of a compact disc is 78.53 square centimeters. What is the radius of the disc? Use pi = 3.14

Step-by-step explanation:

The area of a circle is found using this formula:

We know the area of the disc is 78.53 square centimeters and 3.14 is being used for pi.

We are solving for the radius, so we must isolate the variable r.

3.14 and r² are being multiplied. The inverse of multiplication is division, so divide both sides by 3.14

r is being squared, so we must take the square root of both sides.

The radius of the disc is about 5 centimeters.

choice b is correct

step-by-step explanation:

we have been given the following system of linear inequalities;

we are required to graphically determine the solution to these system of inequalities. using a graphing tool, the solution is as shown in the attachment below;

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step-by-step explanation:

nndncnd cnn

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