Answer:
9.847 %
Step-by-step explanation:
Be p1 the probability that the mammogram detect breast cancer in a woman.
p1=81%.
The probability 'P' that independent and consecutive 'n' singular events with p probability occur is:

In this case:
P: Probability that breast cancer be detected on 11 women with breast cancer.

%
Answer:
a triangle that is rotated about a given point.
Step-by-step explanation:

Taking natural logs of both sides, we get
0.015t=ln 3
t = ln 3/0.015 = 73.24
The answer is 73.24 years.