Hector has a floor plan showing his new house. on the floor plan, his bedroom is 3 inches wide and 3 1/2 inches long. the scale of the floor plan is 1/4 inch = 1 foot. what is the actual length of hector’s room?

Match each polynomial with its factorization.

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

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0