I.) 8
180 - 140 = 40.. divide that by 5 since it’s 5x, which’ ll leave you with 8.
Answer:
X=80
Step-by-step explanation:
65 + 35=100
180-100=80
THIS QN USES THE Z THEOREM
Answer:
Yes!
Step-by-step explanation:
Yes, because 2>1.
Option 3
Step-by-step explanation:
You bring the like-terms together and then do the math
Answer:
0.405 or 40.5%
Step-by-step explanation:
Let event A=having a periodontal disease
event B=having a heart attack
we are given
P(A)=P(having a periodontal disease)=0.30
P(B)=P(having a heart attack)=0.15
P(A/B)=P(have a periodontal disease/have a heart attack)=0.81
P(B/A)=P(have a heart attack/have a periodontal disease)=?
P(A/B)=P(A∩B)/P(B)
P(A∩B)=P(B)*P(A/B)=0.15*0.81=0.1215
P(B/A)=P(A∩B)/P(A)=0.1215/0.3=0.405
There is 40.5% probability that if someone has periodontal disease will have a heart attack.
