The total length of a road trip was 16.1 hours. if highway signs are posted every 0.7 hours, including one at the end of the road trip, how many highway signs will there be on the road trip?

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

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

What ia the sum if the first 7 terms of the geometric series