Which of the following represents the approximate circumference of a circle with a diameter of 5.8 ft? A. 9.106 ft C. 18.212 ft
B. 26.4074 ft D. 105.6296 ft

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm