the diameter of a standard olympic medal is 60mm given 1 inch = 2.54 calculate the circumference of the medal​

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

Issof claims that the scale factor is 1/2. which statement about his claim is correct

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?