Questions asked by Jay M.

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• Find the radius and center of a circle with the equation #x^2 + y^2 - 8x + 2y + 8 = 0# ?
  
• What is the equation of an ellipse ?
  
• Given the equation #2x^2+2y^2+24x-81=0?#
  
• What is the altitude of the air balloon to the nearest 100ft given the information below ?
  
• How do you solve the below equation using reduced row-echelon form?
  
• What is the electric field strength, the energy stored and the electric flux density of ?
  
• What is the p.d of a capacitor with a capacitance of 3,300pF needs to store a 0.5mj of energy?
  
• Can you check my answer for simplifying -2[3(x - 2y) +7] + [3(2 - 5x) + 10] - 7[-2(x - 3) + 5]?
  
• How do I find for x with the given equation?