Acircle has an arc whose measure is 80° and whose length is 88π, what is the diameter of the circle?

Find the quotient. 50a2 – 98b2 -5a +7b

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Find the volume of the solid whose base is the region bounded by f(x), g(x) and the x-axis on the interval [0, 1], and whose cross-sections perpendicular to the y-axis are squares. your work must show the integral, but you may use your calculator to evaluate it. give 3 decimal places for your answe