Line TS is the perpendicular bisector of QR. Which of the following must be true?

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

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