Question If the figure below is regular pentagon, find the value of x and the perimeter of the pentagon.
2x + 4
a
3x - 1
X=
Perimeter =
units

For what value of (y) is 3^3/3^y =1/9

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota