What is the value of z in the triangle? enter your answer in the box. round your final answer to the nearest hundredth.
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X+ y = 5 ; x - y =3 solve using linear combination

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.