Answers created by Ori Kiko

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• Q1) The valency of an element A is 3 and element B is 2. Write the formula of the compound forned by combination of A andB?
  
• How do you solve `x^3 + 2y^3` for x = 7 & y = 1?
  
• How many moles of gas are in a 4.5 meter cylinder at 105K with a pressure of 2.0atm?
  
• How do you solve `5( x - 2) - ( 4x + 4) = - 4`?
  
• Question #95d43
  
• Is `f(x) =(x-2)^3/(x^2/3+1)` concave or convex at `x=6`?
  
• How do you graph `f(x)= (2x^2+7x-15) / (x+5)` and identify all the asymptotes and domain?
  
• How do you solve `\frac { 4} { d + 8} = \frac { 7} { d - 18}`?
  
• 4 knives and 5 forks cost £4.90 in total. 7 knives and 3 forks cost £5.70 in total. How much do they each cost?
  
• What is `ln(i^2)` ?
  
• How do you find the vertex and the intercepts for `f(x)=x^2+7+6`?
  
• What is the vertex form of `y=4x^2 + 8x − 19`?
  
• How do you find the vertex and the intercepts for `y=x^2-2x-3`?
  
• Question #787e6
  
• For what values of x is `f(x) = e^(4x)-4e^(2x)+e^x` concave or convex?
  
• How do you divide `( -3x^3+ 16x^2-24x+9 )/(x + 1 )`?
  
• What are the points of inflection of `f(x)=cos^2x` on the interval `x in [0,2pi]`?
  
• If `f(x) =-e^(-2x-7)` and `g(x) = 3/x`, what is `f'(g(x))`?
  
• Question #a5e49
  
• Question #5d3e4
  
• How do you find the vertex of `f(x)= -6x^2+ 5x + 18`?
  
• Question #1427c
  
• How do you add `13\sqrt { 21x ^ { 13} } + 10\sqrt { 21x ^ { 13} }`?
  
• Question #3b507
  
• How do you simplify and find the restrictions for `(x^2+3x-18)/(x^2-36)`?
  
• How do you solve `\frac { 18} { x - 2} - \frac { 4} { x - 1} = \frac { 4} { x ^ { 2} - 3x + 2}`?
  
• Question #569f0
  
• Is `f(x) =sqrt((x-12)(-x+3))-x^2` concave or convex at `x=6`?
  
• Which quadrants and axes does `f(x)=x-sqrt(x+5)` pass through?
  
• Few Questions??