Answers created by ms

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• Question #261e4
  
• A cilinder has a radius of 5 cm and on top of the cilinder there is a funnel of 25 cm radius. Every hour, 2 liters of water comes in the cilinder. How do you know how high the water is standing in the cilinder in 5 hours ?
  
• If Y varies inversely as the cube root of x. If y = 4 when x = 27, how do you find y when x = 8?
  
• Question #961ab
  
• Find the coefficient of #xy^8# in the expansion of #(x-y^2)^5#?
  
• How do you find the product #(q+r)^2(q-r)#?
  
• How do you add all the odd numbers between 1-99 inclusive?
  
• Question #2a294
  
• What is the weighted average of the masses of all the naturally occurring isotopes of an element called?
  
• What is the shorthand electron configuration for As?
  
• What are inactive gases?
  
• George weeded 2/5 of the garden and Tiffany weeded some, too when they were finished, 4/15 of the garden still needed to be weeded. What fraction of the garden did Tiffany weed?
  
• If y varies directly as x, and y=9 when x=4, how do you find y when x=16?
  
• A force of 20 N accelerates a 2 kg object. How much force is needed to give the same acceleration to a 20 kg object?
  
• How do you solve #6n=4n+3#?
  
• How do you factor completely #2x^3+2x^2-12x#?
  
• What are the 3 states of matter and how are their particles arranged?
  
• How do you solve #3tanx-sqrt3=0# and find all solutions in the interval #[0,2pi)#?
  
• A plane takes off at an angle of elevation of 15 degrees and travels in a straight line for 3,000 meters. What is the height of the plane above the ground at this instant?
  
• How do you solve #x+3y=6# and #x=7-3y#?