X^2-8y+4x+4=0 what is the directrix and vertex​

4

step-by-step explanation:

the correct answer is d

hope this

hi! i think the answer is 1/2 : )

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm