Answers edited by Sidharth

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• How do you find the exact value of #cos ((2pi)/9) cos (pi/18)+sin ((2pi)/9) sin (pi/18)#?
  
• How do you simplify #sqrt(50)-sqrt(2)#?
  
• Why are alkenes and alkynes more reactive?
  
• What is #sqrt{-sqrt3 + sqrt (3 + 8 sqrt (7 + 4 sqrt3#?
  
• Question #35cc8
  
• Question #e755c
  
• How do you simplify radical expressions with variables?
  
• How do you solve #3tan^3x = tan x# in the interval 0 to 2pi?
  
• How do you factor #2x^2+3x-2#?
  
• Whats the missing term in the geometric sequence 36, __, 4?
  
• Question #47095
  
• Given a jar of gas (fixed volume and pressure) at 273.15K, the temperature is lowered to 0K, what happens to the volume?
  
• How do you factor quadratic equations with a coefficient?
  
• What does #-sin(arccos(2))+tan(arccos(4))# equal?
  
• What number is 36% of 96?
  
• How do you solve #log_2(x)+log_3(x+1) = 2#?
  
• Question #f7898
  
• Is cos x sin x = 1 an identity?
  
• How do you find the 13th term of the geometric sequence with a3 = 24 and a5 = 96?
  
• How do you factor the trinomial #x^2 - 14x + 24#?
  
• Question #7bf7a
  
• How do you simplify rational numbers?
  
• Two spheres are placed so that their centers are #2.5# #m# apart. The force between the two spheres is #2.50*10^-12# #N#. What is the mass of each sphere if one sphere is twice the mass of the other sphere?
  
• How do I find the first term of a geometric sequence?
  
• What is the area of this regular hexagon?
  
• How do you factor #2x^2+3x-2#?
  
• A rectangular Persian carpet has a perimeter of 240 inches. The length of the carpet is 24 in. more than the width. What are the dimensions of the carpet?
  
• Simplify the following?
  
• How do you write the rational expression #(x^3+5x^2+6x)/x^-4# in simplest form?
  
• What is a polynomial function with the roots -1, 2, and 3?
  
• How do you prove: #cosx- (cosx/(1-tanx))= (sinxcosx)/(sinx-cosx)#?
  
• How do you factor #xy + xz + wy + wz#?