Answers created by Vince G.

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• An object experiences an impulse, moves and attains a momentum of #200# #kg* m/s# If its mass is #50# #kg#, what is its velocity?
  
• Are any apostrophes needed in the following sentence? If so where?: Their houses doors all had to be the same color.
  
• How do you solve #6x = 4x - ( - 18)#?
  
• How do you solve #9x+6y=3# and #-3x+y=14# using substitution?
  
• What is spectroscopy and it's types?Explain.
  
• What is an example of personification of the stairs?
  
• How do you express the phrase "9 minutes less than Bob's time" as an algebraic expression?
  
• How do you multiply #(-20x -12)(-19x -15)#?
  
• How do you solve #2(x-5+2)=6# using the distributive property?
  
• How do you solve #-6( n + 2) + 15= - 3n - 9#?
  
• How do you solve #x^2 +6x +8 =0# using the quadratic formula?
  
• A particle moves along a line so that its displacement at time t≥ 0 is given by s(t)=2t^3-24t+1, where s is measured in meters and t is measured in seconds. At what values of t does the particle change direction? Thank you!