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   | A cubic equation | 2016-07-25 | 
  |  | Chinmay pose la question : x³-2x²-7x+5
 Penny Nom lui répond.
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   | The number of sides of a polygon | 2016-07-23 | 
  |  | Shriya pose la question : All the angles of a polygon are either 155° or 140°.
 There are twice as many angles of 155 °or  140°.
 Find the number of sides of the polygon
 Penny Nom lui répond.
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   | The temperature inside and outside a greenhouse | 2016-07-22 | 
  |  | Mehzad pose la question : Every day, the temperature in a greenhouse is at its low temperature, 70 degrees Fahrenheit, at 2 a.m. and at its high temperature, 84 degrees Fahrenheit, at 2pm. Its temperature increases linearly between 2 am and 2pm , and decreases linearly from 2 pm and to 2am. The outside temperature follows the same linear patterns, but has a low temperature of 60 degrees Fahrenheit at 2 am and a high temperature of 78 degrees Fahrenheit at 2 pm. At which of the following times will the temperature inside and outside the greenhouse be the same?
 
 a) 8:00 am
 b) 12:00 noon
 c) 4:00 pm
 d) The two temperatures will never be the same
 Penny Nom lui répond.
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   | Two equations with fractions | 2016-07-22 | 
  |  | kanesh pose la question : p/2+q/3=3
 
 p/4+2q/3=3
 Penny Nom lui répond.
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   | Which term of this sequence has value 8? | 2016-07-20 | 
  |  | Lauren pose la question : Hi there
 
 Which term in the sequence -2; -5/3; -4/3 ; -1; ... has a value of 8.
 
 Since term 2 and 3 of this sequence contain fractions which can be converted to recurring decimals.  What is the best way to work out the common difference here.
 
 I do however understand that to work out the nth term of an arithmetic series, the following formula Tn = a + (n-1)d.  In this series a = -2
 Penny Nom lui répond.
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   | Writing numbers in the form a/b | 2016-07-17 | 
  |  | Edward pose la question : How to write these numbers in form of a/b: -7, 0.175, -3.25, 37/10, -16, 1/3, 2.04
 Penny Nom lui répond.
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   | A congruence theorem for two right angled triangles | 2016-07-17 | 
  |  | Sayari pose la question : Hello.
Is it possible for two right angled triangles to have the same length of base and height and a different hypotenuse? If not so, then why in the congruence criteria RHS the hypotenuse is given more importance? It can also be like- 'two triangles are congruent if they are right angled and have the same base and height.'
Thank You.
 Penny Nom lui répond.
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   | The composition of a function with itself | 2016-07-17 | 
  |  | Mel pose la question : If f(1 + 3x) = 1 * x, solve f(f(x))
 Penny Nom lui répond.
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   | If x+y=7 and x^2+y^2=42, then xy equals? | 2016-07-17 | 
  |  | Mehzad pose la question : If x+y=7 and x^2+y^2=42, then xy equals?
 Penny Nom lui répond.
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   | A train from Erie to New York | 2016-07-14 | 
  |  | carol pose la question : a train leaves Erie with twice as many women as men. At York, 17 men get on and 16 women . How many men and women were originally on the train?off. There are now the same number of men as women
 Penny Nom lui répond.
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   | Lisa went for a run | 2016-07-14 | 
  |  | Olive pose la question : Lisa ran 3km north and then 4 km east what was her total distance
 Penny Nom lui répond.
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   | The perimeter and area of a shape | 2016-06-30 | 
  |  | Scott pose la question : If I have a 16 x 32 rectangle the square feet is 512. So if I take a rope 96 feet long , which is the lineal feet of the rectangle, and manipulate it to any shape I want does the square footage inside the rope stay at 512 square feet? Thanks in advance!
 Penny Nom lui répond.
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   | A 1.4 acre square | 2016-06-28 | 
  |  | Jamie pose la question : Dear Faithfullness,
 
 I was previously to be purchasing a square 1 acre plot, which I believe was to have 209feet, 4 sides perimeter.
 
 How big would a 1.4 acre site be?
 In sq feet length ie original 209ft + (the adeed 0.4)
 Penny Nom lui répond.
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   | Triakis | 2016-06-27 | 
  |  | Gordon pose la question : Some authorities treat "triakis" (and related terms "dyakis", "tetrakis", etc.) as attached prefixes; others treat them as separate adjectives. Thus I see one of the Catalan solids described as both "triakistetrahedron" and "triakis tetrahedron". Which usage is correct?
 Chris Fisher lui répond.
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   | Slope | 2016-06-27 | 
  |  | Ashiq pose la question : What is 1% slope if length 101 feet?
 Penny Nom lui répond.
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