The perimeter of the square is 2.25x and the equilateral triangle is 1.5x + 6. What is the value of x?

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

For each proportion find the unknown number x 1/5/8=×/15

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?