Please help due soon and i need to pass

If the value of cos330°is√3/2 then find cos 165°.

In the next 10 years, how do you think hipaa guidelines will affect the roles, responsibilities and tools of a medical transcriptionist

Do one of the following, as appropriate: (a) find the critical value z subscript alpha divided by 2 , (b) find the critical value t subscript alpha divided by 2 . 99%; nequals 17; sigma is unknown; population appears to be normally distributed.