Answers edited by Özgür Özer

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• The smaller of two similar triangles has a perimeter of 20cm (#a+b+c=#20cm). The lengths of the longest sides of both triangles are in proportion 2:5. What is the perimeter of the larger triangle? Please explain.
  
• What are the points of inflection, if any, of #f(x)=x^4-x^2+5 #?
  
• How do you factor: #y= x^2 -6x + 9 #?
  
• The altitude of an equilateral triangle is 12. What is the length of a side and what is the area of the triangle?
  
• How do you graph the system of linear inequalities #y>=1# and #x<=6# and #y<2x-5#?
  
• How do you solve #log(x+1) = 2 + log x#?
  
• How do you find the inverse of #f(x)=3^(x+2)#?
  
• Given a set # {-15,1,200,x,1} #, for what x would the mean of the set be -15?
  
• How do you factor #9x(3x-9)^2 + (3x-9)^3#?
  
• The second angle of a triangle is twice the first angle. The third angle is 20 degrees more than the first angle. What is the first angle?
  
• How do you evaluate #log_4(1/4)#?
  
• What is the distance between #(2,5) # and #(9,1)#?
  
• The interior angles of a triangle are #(x+10)°#, #(3x)°#, and #(2x+30)°#. What is the value of #x#?
  
• How do you convert 210 degrees to radians?
  
• How do you find the x and y intercepts for #y = -6x + 6#?
  
• What is the inverse of #f(x)= -log_5 (x-3)# ?
  
• What are the angle measures of a 5-12-13 right triangle?
  
• Given a set # {12, x ,17} #, for what x would the mean be 14?
  
• What is the inverse of #y=log(x+1)?# ?