Answers edited by Roy Ø.

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• Use the first and second derivatives of the function y = x^3-3x^2-9x+15 to find the intervals of increase and decrease. Help!?
  
• What is 1.5 divided into 3 =?
  
• What are Polar Coordinates?
  
• How do you solve this quadratic equation #2x^2- 10+ 7=0#?
  
• Solve for #x#? #e^(2x)-5=ln(x)+7# Please and thank you!!
  
• How do you simplify #\sqrt { 49a ^ { 15} }#?
  
• Light from the Sun takes 8 minutes to reach Earth. How long does it take to reach Mars?
  
• E^4x + 3e^-4x = 6 x=?
  
• #int 1/(1+x^3) dx# is equal to?
  
• A family has 3 children. Find the probabilities. A) all boys B) All boys or all girls C) Exactly two boys or two girls D) At least one child of each gender What are the probabilities?
  
• My proof for this limit using the definition is correct? #lim to 2^+ (1/(x-2)) = +\infty#
  
• How to convert 10 radian in degree minutes and seconds ?
  
• Is #f(x)=-7x^3+x^2-2x-1# increasing or decreasing at #x=-2#?
  
• 24np/18p^2?
  
• How do you solve #x^2+14x + 49= 19#?
  
• (6p^2q^2) - (9pq^3)?
  
• How do you solve #12x – 5x < 6(x + 7)#?
  
• Graph 7 is similar to graph 8, how are they different?
  
• How do you translate "the product of a number and three" into a mathematical expression?
  
• How do you solve #y = 2/3x - 7# and #2x - 3y = 21# by graphing?
  
• How do you simplify #(3sqrt7 - 6sqrt5)(4sqrt7 + 8sqrt5)#?
  
• How do you determine the limit of #(x+2)/(3x^2)# as x approaches 0-?
  
• How do you solve the inequality #9x^2-6x+1<=0#?
  
• What is the difference in volume between a baseball with a diameter of 1.75 in and a soccer ball with a diameter of 9.50 ​in?
  
• Two angles are supplementary. One angle is 5 degrees less than four times the other. What are the measures of the angles?
  
• How I finish this proof using the definition of limit for this #lim_(x to 2) (-1/(x-2)^2) =-\infty #?
  
• How do I solve this ?
  
• How do you solve #5/7x-3/14=-3/8x+3/4#?
  
• What is #Arctan (-1/3 * sqrt3)#?
  
• If angle ABC = angle XYZ what is the mesure of A? Let c= 12, z=18, and x=27
  
• How to solve #4sin^2((3x+pi)/6)=3#?
  
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