1. The difference between two numbers is 45. Three times the larger number less five times the smaller number is 75. Find the numbers

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

Which of the following statement about pascal's triangle are true?

Which number line represents the solution set for the inequality - x 24?