Answers created by Joe B.

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• How shall I proceed in this sum? If #x=sint# and #y=sin2t#, prove that (i) #(1-x^2)(dy/dx)^2=4(1-y^2)# (ii) #(1-x^2)(d^2(y)/dx^2)-xdy/dx+4y=0#
  
• What is the number rounded to the nearest thousand? # 12,543#
  
• A) 9.80g of water vapor condenses on a soda can at 100.0°C? Given : latent heat of vaporization 2260 J/g latent heat of fusion 334 J/g (i) State the phase change for the above process (ii) Calculate the amount of energy transfer
  
• How do you differentiate #f(x) = (sinx)/(1-cosx)# using the quotient rule?
  
• When taking a 7 question multiple choice test,where each question has 5 possible answers,it would be unusual to get ...........or more questions correctly by guessing alone?
  
• Who was elected President of the United States partially because of his heroics in the Spanish-American War?
  
• Is #f(x) =(x+4)^3/(x^2/3+1)# concave or convex at #x=8#?
  
• If #f(x)= tan2 x # and #g(x) = sqrt(-4x-3 #, how do you differentiate #f(g(x)) # using the chain rule?
  
• How can you simplify 24 minutes:40 minutes?
  
• How do you find the GCF of #7x^2, 15xy#?
  
• Looking for answers for a)iv), a)v) and c)... Is my brain not working or are the answers in my book wrong? An explained answer is much appreciated!
  
• Earth's motion... help me!? is it C
  
• How many pints are in a cup?
  
• The general solution of the equation 2sin x+1=0 is?
  
• Using the picture, what DEGREE MEASURE does a + b equal?
  
• What is #-35\div 5#?
  
• Jaziel is painting a wall. He has a ladder that is 12 feet long and places the base of the ladder 4 feet from the wall. To the nearest foot, how high does the ladder reach up the wall?
  
• Question #e7a87
  
• Question #dedf0