4. Choose the best answer. A point is a location in space that has neither size nor
O
existence
dimension
O understanding
O proof

Trigonometry help asap

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

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles