The length of a rectangle is 4 more than twice its width. If the perimeter of the rectangle is 64 feet, find the dimensions of the rectangles

Which equation represents a circle with a center at (–3, –5) and a radius of 6 units? (x – 3)2 + (y – 5)2 = 6 (x – 3)2 + (y – 5)2 = 36 (x + 3)2 + (y + 5)2 = 6 (x + 3)2 + (y + 5)2 = 36

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 obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =