Given the regular decagon (10-sided polygon), which statements are true? choose all that applya. the polygon has 90° rotational symmetryb. the polygon has 36° rotational symmetryc. the polygon has 144° rotational symmetryd. the polygon has point symmetry

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation:

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)