Answers edited by Maggie

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• How can the universe be infinite?
  
• What is the equation of the line tangent to #f(x)= x^5-e^x # at #x=2#?
  
• What is #cot(theta/2)# in terms of trigonometric functions of a unit #theta#?
  
• What is the standard form of #y=(x+3)(x^2 - 3x + 9) #?
  
• What's the LCM of 6 and 8?
  
• How many elements is the earth made of?
  
• How does asteroseismology work?
  
• If a particle moves according to the equation #s = t3 – 6t2 + 9t – 5#, how do you find the acceleration when the velocity is #0# (#s# is in cm).?
  
• When energy (in any of its forms) enters a black-hole, is that energy destroyed or absorbed?
  
• How do you implicitly differentiate #-1=xy^2+x^2y-e^y-sec(xy) #?
  
• How do you factor the expression #5x^2 + 14x - 3#?
  
• How do you find the roots of #x^2-x=6#?
  
• How does the wave mechanical model of the atom differ from the bohr model?
  
• How do you find the y intercept of an exponential function #q(x) = -7^(x-4) -1#?
  
• Question #02291
  
• Question #e395e
  
• How do you graph the system #x - 4y >= -4# and #3x + y <= 6#?
  
• Question #664de
  
• How far away is Jupiter from Saturn?
  
• A diver launches off of a 25 m cliff with a speed of 5 m/s and an angle of 30° from the horizontal. How long does it take the diver to hit the water?
  
• What are neutrinos? Where are they found?
  
• What is the vertex form of #y=-3x^2-2x+1#?
  
• How do you express #0.0001/0.04020# as a decimal?
  
• How do you simplify #15^12-15^11#?
  
• How do you factor the expression # 15x^2 - 33x - 5#?
  
• How does weak force differ from the other fundamental forces?
  
• How do you find all the zeros of #4x^3-4x^2-9x+9# with 1 as a zero?
  
• Question #04c37
  
• How do you convert x=3 to polar form?