Questions asked by Wonderer

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• How do you find the formula for the sum of this?
  
• How can this limit exist?
  
• How do you solve standard cubic equations, and is there a general formula like there is for quadratics?
  
• How do you convert this to partial fractions?
  
• If 1 mole of H2SO4 is dissolved in water, how many moles of hydroxonium ions are produced?
  
• Why do the vast majority of people asking questions never say thanks for the answer?
  
• Do you have to integrate to solve this?
  
• When converting polar equations in Cartesian equations, how do you deal with #theta# when it is on its own?
  
• Can someone help me?. I am having trouble understanding exactly what concavity and convexity of a function really mean.
  
• Does the sign change either side of a point of inflection?
  
• Can someone please explain this?
  
• How do you differentiate #y=arcsin(x)#?
  
• What is the complement of B relative to A for sets A = #[1,5,8,10,12]# and B = #2,4,5,8,11]#?
  
• What is the symmetric difference of sets A and B?
  
• What is the radius of the arc?
  
• How do you derive the quadratic formula? Thanks
  
• What is the sum of #sum_(r=1)^(100)(2r+1)#?
  
• Does #cos(arccos(x))=x#?
  
• (1 point) A rock is thrown into a still pond and causes a circular ripple. If the radius of the ripple is increasing at a rate of 4 feet per second, how fast is the circumference changing when the radius is 20 feet?
  
• Am I wrong about this?
  
• A net force of 10N acts on a mass of 25kg for 5 seconds. What is the acceleration?
  
• An body with a mass of #6 kg# is on a slope at an incline of #pi/5 #. If the body is being pushed up the slope with a force of # 4 N#, what is the minimum coefficient of friction required for the body to remain at rest?
  
• A truck pulls boxes up an incline plane. The truck can exert a maximum force of 4,000N. If the plane's incline is #(5π)/8# and the coefficient of friction is #9/8#, what is the maximum mass that can be pulled up at one time? Thanks
  
• Is there a formula for finding the orthocenter of a triangle from its coordinates?.
  
• Will the Socratic team ever design a new badge for featured answers?
  
• Is there financial gain in the Socratic app?
  
• Is it my imagination, or have a lot of contributors jumped the Socratic ship already?
  
• If you have 1 litre of #H_2SO_4# at 96% w/w, what is the volume of water it contains?.