Answers: 2
Mathematics, 21.06.2019 14:10, emmaccanttlon
Plzzz plzz maths ! quadratic sequences =an^2+bn 1) 1,6,15,28,45 2)5,18,39,68,105 3) 1,8,21,40,65 4) 7,24,51,88,135 5) -1,2,9,20,35
Answers: 3
Mathematics, 22.06.2019 01:00, SpeechlessZzz9920
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)
Answers: 3
How to solve 22 - 5x = -2(3 + 6x) ??...
Mathematics, 24.03.2020 03:59
Mathematics, 24.03.2020 03:59
Mathematics, 24.03.2020 03:59
Mathematics, 24.03.2020 03:59
Mathematics, 24.03.2020 03:59
Mathematics, 24.03.2020 03:59
Mathematics, 24.03.2020 04:00