Me ajudem log de (x-1) na base 4= 1/2

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

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

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0