6. A bus travels 20 km in 30 minutes. What is the average speed of an object? O A. 20 kn/h O B. 30 km/h O C. 40 km/h O D. 50 km/h

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i

For every corresponding pair of cross sections, the area of the cross section of a sphere with radius r is equal to the area of the cross section of a cylinder with radius and height 2r minus the volume of two cones, each with a radius and height of r. a cross section of the sphere is and a cross section of the cylinder minus the cones, taken parallel to the base of cylinder, is the volume of the cylinder with radius r and height 2r is and the volume of each cone with radius r and height r is 1/3 pie r^3. so the volume of the cylinder minus the two cones is therefore, the volume of the cylinder is 4/3pie r^3 by cavalieri's principle. (fill in options are: r/2- r- 2r- an annulus- a circle -1/3pier^3- 2/3pier^3- 4/3pier^3- 5/3pier^3- 2pier^3- 4pier^3)