Find the axis of symmetry of the graph y = x2 + 9x + 20. O Y = - 4.5
O y = 4.5
O x = 4.5
O x = -4.5

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

i think it is 70

step-by-step explanation:

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed

answer: -0.5 would be the most likley outcome

step-by-step explanation: