The distance AB rounded to the nearest tenth need help

d

step-by-step explanation:

d 600 because 15*10*2=300

300+300=600

step-by-step explanation:

secant-secant formula:

(whole secant) x (external part) =           (whole secant) x (external part)

(8+y-2) *8=                                           (y+4+6) *6

(y+6)*8 = (y+10) *6

distribute

8y+48 = 6y +60

subtract 6y from each side

2y +48 = 60

subtract 48 from each side

2y = 12

divide by 2

y = 6

sv =     (y+4+6)

sv   = 6+4+6

sv = 16

this would be 35. 35 + 5 = 40. you take the known constant and subtract by the answer of the equation and you get y.