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??