What is the surface area of the cube? drag and drop the correct surface area to match the cube. cube with edge length = 3.2 m a 12.8 b 19.2 c 51.2 d 61.44

Both the red and blue line segments stretch from the center of the circle to a point on the circle. the length of the blue segment is 5. how long is the red line segment?

I’m stuck on this equation, anyone got the answer?

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6