Answers created by Xytl

• Back to user's profile
• How do you find the distance between (-2,3), (-1,7)?
  
• How do you simplify `3(3x+3)+7(x-4)`?
  
• How do you factor `9x^3-x`?
  
• If coefficient of correlation, “r” between two variables is zero, does it mean that there is no relationship between the variables?
  
• How do you solve `(x-4)/(x-2) = (x-2)/(x+2) + (1)/(x-2)`?
  
• How do you solve `49b^2 + 84b + 32 = 0` by completing the square?
  
• What is `3m^8n * (-9mn^2)`?
  
• How do you find the slope that is perpendicular to the line `y=3x+2`?
  
• The ratio of boys to girls in a school choir is 4:3. There are 6 more boys than girls. If another 2 girls join the choir, what will be the new ratio of boys to girls?