Write a situation in which positive and negative numbers are used to describe values that have opposite meaning. what does 0 represent in this situation

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Find the area of the regular hexagon if a side is 20 cm.