Answers edited by David O.

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• How do you simplify #sqrt80+sqrt20#?
  
• What are the foci of the ellipse given by the equation 16x^2 + 9y^2 + 64x + 108y + 244 = 0??
  
• What are all square roots of #100/9#?
  
• What answer ? y = x2 + 7x – 5 can be written in the form y = (x + a)2 + b.
  
• In a regular polygon the wxterior angle is one fifth of an interior angle. How many sides has the polygon?
  
• Suppose the probability that it will rain tomorrow is 0.7. (a) What are the odds that it will rain tomorrow? (b) What are the odds that it will not rain tomorrow?
  
• What is the equation of the tangent line of #f(x) =((x-1)^3(x^2+2))/(e^x-1)^4# at #x=2#?
  
• How do you simplify #sqrt(24x^3yz)#?
  
• How do you find the length of the curve for #y=x^(3/2) # for (0,6)?
  
• If #f(x) = sqrt(x - 5)#, for #x ≥ 5#, what is the inverse of #f(2)# ?
  
• How do you differentiate #[(2x^3) - (4x^2) + 3] / x^2 #?
  
• How do you solve #7u-10u^2=1#?
  
• How can I simplify this trigonometry expression? Thanks!
  
• What are the intercepts for #Y=-2x^2-8x+6#?
  
• How do you differentiate #(3+2x - x^2)^(1/2)#?
  
• How do you graph #x^2+y^2-6x-14y+42=0#?
  
• How do you find the distance between (-3,0) and (4,0)?
  
• How does exponential growth differ from logistic growth?
  
• Solve this equation? I don't get it.
  
• How do you find the exact value of sin ( sin^-1 3/8)?
  
• Find the angle between the tangents to the circle x² + y² - y -3 =0 at the point where x=1 and find their point of intersection?
  
• How do you factor #x^(-3/2) + 2x^(-1/2) + x^(1/2)#?
  
• How do you write the algebraic expression for "the sum on two consecutive number"?
  
• What is the inverse function of #f(x)=(x+1)^2#?
  
• Given that the inverse of h(a) = 3, what is the value of a ?
  
• How do you find the exact value of 3 over the square root of 8?
  
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