A and B must be disjoint. You have, by the inclusion/exclusion principle, that

where the last term is required to prevent double counting. When

and

are disjoint, you have

and

, leaving you with
Answer:
A
Step-by-step explanation:
for D I draw it out and it didn’t make sense
It could be 5x, 5 being the digit, x being "a number"
Question in proper order:
Institute for Healthcare Improvement (IHI) proposed a process for quality improvement with steps known as "PDCA." When explaining the steps to a group of nurses interested in improving the process of medication reconciliation for heart failure patients with high rates of recidivism, the instructor states:
Select one:
a. C is for check if the process for change worked. Was there an improvement in accurate reconciliation? And what was learned? A stands for algorithm, which includes all steps of the process.
b. A stands for algorithm, which includes all steps of the process.
c. D stand for deviation, which is an alteration in the expected drugs ordered.
d. P stands for process. Following a top-down flowchart provides the steps for reviewing patient medications taken at home compared to those prescribed during hospitalization.
Answer and Explanation:
a. C is for check if the process for change worked. Was there an improvement in accurate reconciliation? And what was learned? A stands for algorithm, which includes all steps of the process.
67, 79, 81, 83, 83, 85, 87, 88, 89 then find the bumber in middle so answer is 83