Answers edited by Elijah T.

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• How do you find #lim (x^2+4)/(x^2-4)# as #x->2^+#?
  
• How did human beings develop altruism?
  
• What is the tension in a wire supporting a 1250.0 N underwater camera submerged in water? The volume of the camera is 8.3x10-2 m3.
  
• What are some examples of polysyndeton?
  
• A plane, whose speed in still air is 360 km/h flies directly from London to Rome, at a distance of 1400 km. The bearing of Rome from London is 135 degree and there is wind of 120 km/h blowing from North? Find?(see below)
  
• How do you solve #18f=-216#?
  
• How is antithesis different from paradox?
  
• What is the speed and mass of the object?
  
• What is the derivative of #sinx-x/2#?
  
• What is the net area between #f(x) = 2x-6 # and the x-axis over #x in [2, 4 ]#?
  
• Question #669dc
  
• What value would u give the actual index of refraction of the plastic block?
  
• Question #56ea9
  
• How do you simplify #(5x^4-13x^3+21x^2+x+10)/(5x-3)#?
  
• The sum of a number and 19 is at least 8.2. What is the number?
  
• How do you find the derivative of #ln(1+x^4)#?