PA) = 0.50, P(B) = 0,40, and PA and B) = 0.15. What is PA or B)?
A. 0.55
B. 0.90
C. 0.75
D. 0.65

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11