Answer:
10
Step-by-step explanation:
Pythagorus thereom. So
8sq +6sq= xsq
64+36=100
Sq root 100 is 10
Answer:
The last one
Step-by-step explanation:
So 2 * -5 = -10
ITS -10 BECAUSE WHEN MULTIPLYING A EGATIVE AND POSITIVE NUMBER THE ANSWER IS ALWAYS A HEGATIVE.
So the last one is the best answer.
HOPE THIS HELPED
X-2
Hope this helps!
Vote me brainliest!
Yes, it is a rectangle the slope of ab is 1/5 the slope of cues it is a rectangle the slope of ab is 1/5 the slope of cd is also 1/5 the slope of bc is -1/6 so is da
Answer:
a) 0.2416
b) 0.4172
c) 0.0253
Step-by-step explanation:
Since the result of the test should be independent of the time , then the that the test number of times that test proves correct is independent of the days the river is correct .
denoting event a A=the test proves correct and B=the river is polluted
a) the test indicates pollution when
- the river is polluted and the test is correct
- the river is not polluted and the test fails
then
P(test indicates pollution)= P(A)*P(B)+ (1-P(A))*(1-P(B)) = 0.12*0.84+0.88*0.16 = 0.2416
b) according to Bayes
P(A∩B)= P(A/B)*P(B) → P(A/B)=P(A∩B)/P(B)
then
P(pollution exists/test indicates pollution)=P(A∩B)/P(B) = 0.84*0.12 / 0.2416 = 0.4172
c) since
P(test indicates no pollution)= P(A)*(1-P(B))+ (1-P(A))*P(B) = 0.84*0.88+ 0.16*0.12 = 0.7584
the rate of false positives is
P(river is polluted/test indicates no pollution) = 0.12*0.16 / 0.7584 = 0.0253
