A prospector thinks there is an even (50-50) chance that his property contains oil. Any property suspected to have oil can go through two independent tests. The first test is 80% reliable; if there is oil on the property, it reports positive 80% of the time, and it reports negative 80% of the time whenener there is no oil. For the second test, it reports positive 75% of the time when there is oil, as well as reporting positive 50% of the time when there is no oil. Required:
What is the probability the property has oil, given that both tests report positive?

a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

(by the way, do you mind marking me as brainliest? i'd greatly appreciate it! mahalo! x3)

step-by-step explanation:

no solution.

-60.75

step-by-step explanation:

just add the numbers then put the negative sign on it