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	Solve the equation completely cos 2x = 1		2017-06-08
		Lava pose la question : Solve the equation completely cos 2x = 1 Penny Nom lui répond.
	The derivative of x^1/3		2015-11-08
		omar pose la question : hi can help me am teacher ask me about x^1/3 Derivation definition . Penny Nom lui répond.
	Is a square a trapezoid?		2015-01-26
		Katie pose la question : Can a trapezoid sometimes be a square? Penny Nom lui répond.
	Rates, percentages and units		2014-12-30
		Kenneth pose la question : Hello: If percentages have no units, why are some percentages called rates, as in interest rate, or perhaps a tax rate of 7% as an example? A rate has units of different quantities. I thank you for your reply. Robert Dawson lui répond.
	Planar curves		2014-12-13
		ann pose la question : what does planar curve mean in your definition of a cone? Penny Nom lui répond.
	Trig functions and the unit circle		2014-10-02
		Jake pose la question : I was wondering what conclusions can be drawn about the trigonometric functions and how they work about the circle. Can you also please give me an explanation for it? Thank you. Penny Nom lui répond.
	Tangent of theta		2012-01-17
		stahl pose la question : explain what the 'tangent of theta' means. Draw and label a diagram to help with your explanation. Harley Weston lui répond.
	The derivative of f(x) = (x+1)^1/2		2011-09-05
		Carla pose la question : Find the derivative using the limit process of f(x) = (x+1)^1/2 Harley Weston lui répond.
	Using the limit definition		2010-06-06
		Meagan pose la question : Using the limit definition find the derivative of 3/(2x^2) Harley Weston lui répond.
	Differentiating y= square root(x-1)		2009-09-29
		edith pose la question : describe the x-values at which f is differentiable. y= square root(x-1) Penny Nom lui répond.
	Vector spaces		2009-07-05
		Nazrul pose la question : How can I prove that m(a+b)=ma+mb where a and b are two vectors. Thank you. Harley Weston lui répond.
	The derivative using limits		2009-04-21
		Kirstin pose la question : I am trying to take the limit of f(x) = [f(x+h)-f(x)] / h If you try taking the limit by substituting the limiting value h=0, you get 0/0, which of course is not the right answer. You rewrite f(x+h)-f(x) so it has a factor of h in it, which you cancel with the h in the denominator before you substitute h=0. But I am not sure how to do this. Thanks. Robert Dawson lui répond.
	A rectangular prism		2009-01-13
		nika pose la question : How many bases does a rectangular prism have? What are they? Harley Weston lui répond.
	The definition of the sine function		2007-11-22
		Indrajit pose la question : I need a explanation in this theory.......if sinθ = p/h...then sin 90 deg. = p/h or 1 = p/h or p=h .....how can a perpendicular be equal to a hypotenuse.??? Harley Weston lui répond.
	The derivative of f(x)=1/(x-1)		2007-09-21
		Michelle pose la question : im having trouble finding the derivative of f(x)=1/(x-1) using the f(x+h)-f(x)/h method. Stephen La Rocque lui répond.
	Trig functions for angles not between 0 and 90 degrees		2007-07-16
		Tim pose la question : My question: Why is the value of a trigonometric function, the same, for an angle over 90 degrees and its reference angle? How are the angle and its reference related? Do they both form a triangle that has equal sides? Penny Nom lui répond.
	Inclusive definitions		2005-12-14
		Layla pose la question : recently the solvable quandary of 5+5+5=550 came up (the question says that you have to put 1 straight line somewhere in the equation to make it true with out turning the "=" into a "not=" sign). So two answers were put forward: 545+5=550 (the use of a line converting a + into a 4) AND 5+5+5(less than or equal to)550 There is currently an argument about the second solution. The disagreement is about whether this sign can be used. One person is arguing that the "less than or equal to" sign defines that the number on the left is in the range 550 and below. The other is saying that since the number (which is clearly defined with no variables) can never equal 550, then the "less than or equal to" sign cannot be used in this case. Which one is the correct definition? Walter Whiteley lui répond.
	Is a square a rectangle?		2004-11-21
		Carol pose la question : I am a teacher. In an FCAT sixth grade review test, there was a question to the students to draw a square and then they referred to it as a rectangle. What is the definition that makes a rectangle a square that can be taught to the students without confusing them. Walter Whiteley lui répond.
	The sides of a circle		2004-01-07
		Helena pose la question : My name is Helena and I am 10 years old. On a resent math exam I was asked the question" How many sides does a circle have?" and I wrote down none. The teacher said the answer was one side. Chris Fisher lui répond.
	Definitions and descriptions		2003-06-08
		Tammy pose la question : MY DAUGHTERS TEACHER ASKED HER TO GIVE BOTH A DESCRIPTION AND A DEFINITION OF THE FOLLOWING ... CIRCLE, SQUARE, TRIANGLE,HEXAGON...... THE LIST GOES ON. WHAT IS THE DIFFERENCE BETWEEN DEFINITION AND DESCRIPTION ? DO A CIRCLE FOR AN EXAMPLE PLEASE. Penny Nom lui répond.
	The vertex of a cone		2003-03-27
		Holly pose la question : I read your response to Callie about whether a cone has a vertex or not. Is it ONLY a vertex if both halves of the cone are together or can one half of the illustration have a vertex? Walter Whiteley lui répond.
	Can a square be a rhombus?		2003-03-04
		Beth pose la question : Can a square be a rhombus? Some sources say yes, some say no. Some sources define a rhombus as a quadrilateral and parallelogram with equal sides, but without right angles. Some sources say a square is a special case of a rhombus. Clarity, please! Walter Whiteley lui répond.
	A polygon		2001-09-11
		Sueling pose la question : what is the smallest polygon. what is a polygon. Penny Nom lui répond.
	A prism		2001-01-18
		Nigel Ayling pose la question : What is the mathematical definition of a prism, I am confused by the following definitions as they appear to be contradicto... Walter Whiteley lui répond.
	Is a square a rectangle?		2000-02-15
		Jaireh pose la question : This is something that aroused a debate in class: A rectangle was defined as a parallelogram with 4 right angles. A square was defined as a parallelogram with 4 congruent sides and 4 right angles. I need written and conclusive proof that some rectangles can or cannot be squares. I tried insisting that some of them can.. but without proof nobody will listen. Walter Whiteley lui répond.
	Pyramids and prisms		2000-01-18
		Tyler pose la question : What's the definition of a Triangular Prism and a Triangular pyramid. Penny Nom lui répond.
	Algebra		2000-01-18
		Candis pose la question : I want to know what exactly is Algebra? Not how to do it, or methods. Just what is it? Allen Herman lui répond.
	Isosceles triangles		1999-10-12
		Amber pose la question : In defining the types of triangles, our class was stumped by a question asked by one of the student. Maybe you could help. The definition of an equilateral triangle is a triangle with three congruent sides. The definiton of an isosceles triangle is a triangle with at LEAST two congruent sides. The question is, if an isosceles triangle only requires at Least two of the sides to be congruent, could an equilateral triangle be called an isosceles triangle? Penny Nom, Walter Whiteley and Chris Fisher lui répond.

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