Hello, I would like to ask anybody who knows , What does it mean : when someone wake up and saw a blue circle similar to the picture almost 2 times and it disappears and comes back may I know what might it be ?

C(x)=(2x^2+5x)/(x^3+8) what is maximum c(x)?

Anurse is reviewing the medication administration record of a client who reports having a dry productive cough for the past 2 weeks. which of the following medications should the nurse report to the provider? a. furosemide b. lisinopril c. diltiazem d. metoprolol

After examining mohammad and ordering and reviewing the results of an ecg test, dr. williams indicates that mohammad’s heart appears to be normal. what factors might be contributing to mohammad’s episodes of tachycardia?