Answers created by Dawn A.

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• How do you solve the system of equations #y= - \frac { 7} { 2} x - 4# and #y = - \frac { 1} { 2} x + 2# by graphing?
  
• How do you multiply # (8-2i)(-3+7i) # in trigonometric form?
  
• What is the variance of {-4, 2, 3, 4, -15, 7, -8, -12}?
  
• How do you simplify #sqrt(196)#?
  
• How are z-scores used in the standardization of test scores?
  
• How do you get (cot) (csc) (sec) on my calculator?
  
• How do you find domain and range for #f(x) = abs(x-2)#?
  
• How do you solve #sqrtx (sqrt9 - 4÷3) = sqrt25#?