Answer:
D. $92.30
Step-by-step explanation:
it what i got and its right lol
-x^4+3x^2
(0,9.8) and (10,1.2)
it makes the best line
chord CD is 11
just add 2 and 9
x1 = 2 -
x2= 2 +
x/4 + 6 = 7 + 1/4x
(x^2 - 1)/4x = 1
x^2 - 1 = 4x
x^2 - 4x -1 = 0
x= (4+)/2 = 2 -
x= 2 +