Answers edited by Pankaj Solanki

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• Question #4f1ca
  
• Question #e84ce
  
• An object's two dimensional velocity is given by `v(t) = ( sin(pi/3t) , 2cos(pi/2t )- 3t )`. What is the object's rate and direction of acceleration at `t=1`?
  
• A triangle has corners at `(1 , 3 )`, `(4 ,8 )`, and `(9 ,7 )`. What is the radius of the triangle's inscribed circle?
  
• An object is moving with a constant velocity of 278 m/s. How long will it take it to travel 7500 m?
  
• How do you simplify `2^2+ (-1.4+ 3^3/-43)+3^3-6.3+(-36+7.6-33^3)-2` using PEMDAS?
  
• What are the excluded values and how do you simplify the rational expression `(3y-27)/(81-y^2)`?
  
• Question #c2684
  
• What is the equation of the tangent line of `f(x)=ln(3x)/x^2-x^2` at `x=3`?
  
• How do you solve `3| 20- 9m | + 4= 25`?
  
• Question #e8598
  
• Please help me?