2017-05-24 05:42:46 +0200 | received badge | ● Famous Question (source) |
2017-05-24 05:42:46 +0200 | received badge | ● Popular Question (source) |
2017-05-24 05:42:46 +0200 | received badge | ● Notable Question (source) |
2013-09-22 10:38:11 +0200 | commented question | Determine the y-value at the maximum? Okay, thanks so much, will do! :) |
2013-09-20 15:56:30 +0200 | asked a question | Dome with a parabolic shape? This is my last question for today!! Usually I'm good at math, but I've been sick for over a year and am now finding it hard to concentrate. :P Here is the question: The dome over a town hall has a parabolic shape. The dome measures 48 m across and rises 12 m at its centre. a) Determine the quadratic equation that models the shape of the dome. I already did this and here is my answer. Please correct me if I'm wrong. :) First Zero: (0,0) x1 = 0 Second Zero: (48,0) x2 = 48 Determining the location of the axis of symmetry: x1 + x2 / 2 = 0 + 48 / 2 = 48 / 2 = 24 Therefore, the location of the axis of symmetry is x = 24. b) A vertical column needs to be attached to the dome at a point that is 4 m away from its rim. How tall is the dome at this point? I tried solving this but got lost. c) The dome sits on top of the town hall, which is 20 m high. How high does the column have to be, to reach from the floor to the dome? I did not get to that one because I know I need information from the other two questions in order to solve this. :P Thank-you so much! |
2013-09-20 15:47:25 +0200 | asked a question | Determine the y-value at the maximum? Please help me determine the y-value at the maximum regarding this parabola. I tried solving it 2 times! The shape of the parabola is open down so has a maximum at itÂ’s summit. The math question gave a table and data. I figured out the zeros and axis of symmetry. Here is the necessary information: First Zero: (0,0) x1 = 0 Second Zero: (80,0) x2 = 80 Equation of the axis of symmetry: x1 + x2 / 2 = 0 + 80 / 2 = 80 / 2 = 40 Thanks! |
2013-09-20 15:40:18 +0200 | asked a question | Determine the exact location of the centroid of triangle CDE..Please help! Triangle CDE has vertices C(-2,4), D(6,2), and E(-4, -2). Determine the exact location of the centroid of triangle CDE. I need help with this math question. I tried solving it multiple times but got stuck. :/ Please help. :) Thanks! |