What is 9,000.000.000.000.000.000.X 12.000.000.000.000.000.000.000.000. 000.000

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

In angle pqr find the measure of

During a wright loss challenge your friend goes from 125 pounds to 100 pounds. what was the percent weight loss