Can a "special point" of a graph be a relative minimum and a zero at the same time? explain

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Which of these tools or constructions is used to inscribe a hexagon inside a circle?

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)