Answers created by harshharshharsh

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• How did scientists determine the speed of the expansion of the universe?
  
• How do you solve #4x^(1/4) -3 = 21#?
  
• How do you find the slope that is perpendicular to the line #y= -1/2x + 4#?
  
• What is the standard form of #y=-3(x-1)^2-1 #?