Answers edited by Lucy

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• The 20th term of an arithmetic series is 131 and the sum of the 6th to 10th terms inclusive is 235. Find the sum of the first 20 terms. Can someone please help??
  
• How do you solve #16^ { - 2v } = 64^ { 2v }#?
  
• How can this be solved?
  
• Help in absolute value question?!
  
• What is the discriminant of a quadratic function?
  
• how to solve cos^3x csc^3x tan^3x=csc^2x-cot^2x ?
  
• 8x3+y3+64-24xy factorize..?
  
• How do you find the roots, real and imaginary, of #y= -3x^2 -2x +(2x+1)^2 # using the quadratic formula?
  
• 1. Is (x-3)(x²+3x+6) a Difference of cubes? 2.Is(2x+4)(4x²-8x+16)the sum of cubes?
  
• How do you find the 7th term of the geometric sequence with the given terms a4 = -4, a6 = -100?
  
• An integer is one more than four times a number. If the product of the two integers is 39, then find the integers?
  
• What is the domain and range of #r(x)=sqrt(x+6)-1#?
  
• Which group on the periodic table is the least reactive? Why?
  
• How do you solve the rational equation #(y+2)/y = 1/(y-5)#?
  
• How do i solve this question?Find the size of each exterior angle of a regular octagon.
  
• Which expression represents the volume of the box in terms of x?
  
• What is the lim h → 0 (x+h)^1/2-(x)^1/2/h?
  
• Logarithms and Their Properties?
  
• How do you find the vertex and intercepts for #y = 4x^2 + 8x + 7#?
  
• Name the strong acid containing chlorine?
  
• What is the chemical formula for ATP?