Answers created by David O.

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• Why do some answers have several edits by the same person?
  
• The perimeter of a rhombus is 64 in. What is the length of each side of the rhombus? Explain
  
• How do I simplify this expression? Sin²(-x)-Sin(-x)/1-sin(-x)
  
• How do you solve #2= \frac { 10+ r } { 7}#?
  
• A spherical balloon inflated at a rate of 4pi cm^3/sec. initial volume of balloon 0, how fast is radius expanding after 9 sec (r=0.03m)?
  
• How do vectors apply in real life?
  
• Will a vector at 45° be larger or smaller than its horizontal and vertical components?
  
• The sum of two rational numbers is -1/2. The difference is -11/10. What are the rational numbers?
  
• How do you solve #3y^2-12=0#?
  
• What is the slope of #5y=1/3x+1#?
  
• How do you solve #5x^2 - 125 = 0#?
  
• How do you simplify #(2x^2+6x+4)/(4x^2-12x-16)#?
  
• How do you find the slope and intercept of #y=-3/5x+2#?
  
• What is the solution to the equation #3x-6=-2x+9#?
  
• Is it possible to factor #y=-8x^2 +8x+32#? If so, what are the factors?
  
• How are overdetermined linear systems important to statistics?
  
• How do you find the slope of the curve #f(x)=sqrt(x-1)# at the point x=5?
  
• What is the central limit theorem?
  
• How do you simplify #(11y)/sqrt3#?
  
• What is the slope of any line perpendicular to the line passing through #(2,2)# and #(3,-5)#?
  
• How does probability differ from odds?
  
• What is event of getting a number greater or equal to 3 when rolling a die?
  
• What is the surface area of the solid created by revolving #f(x)=xsqrt(x-1)# for #x in [2,3]# around the x-axis?
  
• How do you differentiate #f(x)=x^3*sqrt(x-2)-sinxcosx# using the product rule?
  
• How do you multiply #(2i)(1-4i)(1+i)#?
  
• What is the polar form of #( 4,9 )#?
  
• What is the equation of the line normal to #f(x)=3x^2 -x +1 # at #x=-3#?
  
• Solve this equation? I don't get it.
  
• How do you find the derivative of #xsqrt (1-x)#?
  
• What is the equation of the tangent line of #f(x) =((x-1)^3(x^2+2))/(e^x-1)^4# at #x=2#?
  
• 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?
  
• How do you solve #7u-10u^2=1#?
  
• How do you work out: (tan(x)cos(x))/(sin(x))?
  
• How can I simplify this trigonometry expression? Thanks!
  
• How do you find the length of the curve for #y=x^(3/2) # for (0,6)?
  
• What are all square roots of #100/9#?
  
• How do you solve the system #x - 2y = 2 # and #x + y = 5#?
  
• A ladder 10 ft long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 0.8 ft/s, how fast is the angle between the ladder and the ground changing when the bottom of the ladder is 8 ft from the wall?
  
• 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?
  
• How do you differentiate #[(2x^3) - (4x^2) + 3] / x^2 #?
  
• How do you differentiate #(3+2x - x^2)^(1/2)#?
  
• What are the foci of the ellipse given by the equation 16x^2 + 9y^2 + 64x + 108y + 244 = 0??
  
• How do you factor #x^(-3/2) + 2x^(-1/2) + x^(1/2)#?
  
• How do you simplify #sqrt80+sqrt20#?
  
• If #f(x) = sqrt(x - 5)#, for #x ≥ 5#, what is the inverse of #f(2)# ?
  
• Given that the inverse of h(a) = 3, what is the value of a ?
  
• How do you determine the solution in terms of a system of linear equations for #x^2 + y^2 = 13#, #2x-3y = -6#?
  
• How do you write the algebraic expression for "the sum on two consecutive number"?
  
• How do you find the exact value of sin ( sin^-1 3/8)?
  
• What are the intercepts for #Y=-2x^2-8x+6#?
  
• How do you simplify #sqrt(24x^3yz)#?
  
• What is the inverse function for #f(x) = x/(x-2)#?
  
• How do you find the exact value of 3 over the square root of 8?
  
• How do you find the distance between (-3,0) and (4,0)?
  
• What is the inverse function of #f(x)=(x+1)^2#?
  
• How does exponential growth differ from logistic growth?
  
• 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?