Chord OC is the exact same length as RA becase the angles both say 4.7 so your answer is (D. 9.3)
Plz mark brainliest
Answer:
Two
Step-by-step explanation:
If x² = k, then x =±√k.
Depending on the value of k, the roots can be real or complex numbers.
Solution :
The monthly average salary and the standard deviation of the salaries of five different countries are provided. A person is interested in the relationship between the job performance, job satisfaction and the job compensation of the five different countries and try to compare them.
She calculated the z scores for accounting that makes $ ,500 per month as :
Country z-score for salary $ 1,500
Brazil
US 
China 
Slovakia 
Kuwait 
From above it is clear that an account from China getting z score of 53.83 will ne more pleased than other countries because the salary of $1,500 in one month for this particular country corresponds to the highest z score.
The best answer out of the ones provided would be c, confidence interval