maximum determinant

Five thousand candidates appeared for an examination, which carried a maximum of 100 points. These points were found to be normally distributed with mean 39.5 and standard deviation 12.5. Determine approximately the number of candidates who secured more than 60 points. => 121 or..

Graph the quadratic function y = 3 x 2 . Indicate whether the parabola opens up or down. Determine the equation of the axis of symmetry and the coordinates of the vertex. Also mention if the vertex is a maximum or a minimum point. => Graph 1; opens up; x = 0; (0, 1); Minimum poi..

Determine the maximum number of positive and negative real solutions of the equation P ( x ) = x 4 - 4 x 3 + 7 x 2 -16 x +12= 0. Then solve the equation. => Positive: 1, Negative: 1, x = 1, - 3, 2 i or Positive: 4, Negative: 0, x = 1, 3, ± 2 i or Positive: 0, Negative: 4,..

Graph the quadratic function y = 3 x 2 - 2. Indicate whether the parabola opens up or down. Determine the equation of the axis of symmetry and the coordinates of the vertex. Also mention if the vertex is a maximum or a minimum point. => Graph A; opens up; y = 0; (- 1, 0); M..

Graph the quadratic function y = - ( 1 4 ) x 2 . Indicate whether the parabola opens up or down. Determine the equation of the axis of symmetry and the coordinates of the vertex. Also mention if the vertex is a maximum or a minimum point. => Graph B; opens down; x = 0; (0, -1); ..

The modulating signal is sampled at the basic rate, usually where f m is the maximum value. The amplitude of the modulation determines the amplitude of the transmitted pulse. The band-width will be great for exact pulse waveform, but may be reduced by a low-pass filter, ther..

The Action Spectrum is the curve plotted on a graph paper representing the amount of oxygen evolved or the amount of carbon dioxide fixed or any other action of photosynthesis at different wavelengths of light. It has been observed that the photosynthesis occurs maximum in blue and red r..

In an atom, the electrons present in various orbitals of the same subshell tend to exchange their positions which is associated with very small amount of energy. Half-filled and completely filled subshell configurations allow maximum exchange of electrons to take place. Therefore, such c..

Progressive waves Stationary waves The disturbance produced in the medium travels onward, it being handed over from one particle to the next. Each particle executes the same type of vibration as the preceding one, though not at the same time. There is no onward motion of the disturbanc..

Hydrometer is an instrument used for determining the density of a liquid. It usually consists of a glass float with a long thin stem which is graduated. The glass float is a large hollow bulb which increases the buoyancy so that the hydrometer floats. The narrow stem increases the sensiti..