Here are the newest items added to Quandaries & Queries:
start over

		Page 434/886

	x^3 y^(-6)		2008-01-24
		From Bill: I need help completing this negative exponents problem: x to the power of 3 multiplied by y to the power of negative 6. What would the process to solving this problem be? Answered by Penny Nom.
	Absolute value		2008-01-24
		From Cara: Give the absolute value of this equation. {-3 + 1} - {5 - 7} note: the brackets are the absolute value lines. Answered by Penny Nom.
	A 3 digit number		2008-01-23
		From Adrian: Consider a 3-digit number,abc,where a is not equal to c.Switch it so that it becomes cba.Subtract the lesser from the greater to obtain rst.Switch this so that it is tsr.Prove that rst+tsr=1089 Answered by Stephen La Rocque.
	Integration		2008-01-23
		From Russell: how to integrate 1/x ln^2 [x] dx Answered by Harley Weston.
	An integral		2008-01-23
		From Russell: I checked out the integration site, but would like an explanation for integrating this integral Tan^3[x] * _dx__ Cos^2[x] Hope this input is correct! the part that throws me off is Tan^3[x], if it was squared rather than cubed I would have a easier time dealing with this one. Answered by Harley Weston.
	Permuting the letters in ELEVEN		2008-01-23
		From Beth: (i) Find the number of distinct permutations that can be formed from all of the letters of the word ELEVEN. (ii) How many of them begin and end with E? (iii) How many of them have the 3 E's together? (iv) How many begin with E and end with N? Answered by Stephen La Rocque.
	Find the slope of the line with equation 7-3y=2x		2008-01-23
		From nell: Find the slope of the line with equation 7-3y=2x Answered by Stephen La Rocque.
	Percentage of what?		2008-01-23
		From Jenny: What is the difference in percentage between 31990 and 29990? Answered by Stephen La Rocque.
	Change a mixed fraction into a decimal		2008-01-23
		From Qiana: I need to know how to change a mixed fraction into a decimal. the mixed fraction is 9 1/2 Answered by Penny Nom.
	Out of school applications of Pythagoras Theorem		2008-01-23
		From Laura: Hi, I am currently working on a math summative in which I have to choose a real life subject and relate it back to the material in my grade 12 math class. I find the history and discovery behind the Pythagorean Theorem and Identity very interesting, but I have yet to find a real-life application of the equations. Yes, I know they are used for finding distances, heights etc., but realistically, how many people actually use it in those situations? Very few. I was hoping for a new application. Is the pythagorean theorem (sin^2x + cos^2x = 1) even applicable? Thank you, Laura Answered by Harley Weston.
	The smallest possible perimeter		2008-01-23
		From RS: If two points of a triangle are fixed, then how can the third point be placed in order to get the smallest possible perimeter of the triangle. Answered by Chris Fisher and Penny Nom.
	A parallelogram and a rhombus		2008-01-22
		From miguel: i have a problem proving a parallelogram a rhombus.. if a diagonal of a parallelogram bisects an angle of the parallelogram , then its a rhombus prove Answered by Stephen La Rocque and Walter Whiteley.
	Converting cubic inches to ounces		2008-01-22
		From kim: I am trying to find the formula to figure capacity in ounces for the following: a rectangle 18" long, .75" wide, .75" deep .... This is for an art project and the cost estimate. Thanks, Kim Answered by Penny Nom.
	A linear system		2008-01-22
		From Lisa: I am supposed to use augmented matrices to solve this system of equations. x - 3y = 5; 4x - 12y = 13. I think it is unsolvable but I want to be sure I am not just giving up. Thanks in advance for your help! Lisa. Answered by Stephen La Rocque and Brennan Yaremko.
	Number of points with integer coordinates which lie inside the triangle		2008-01-22
		From Saurabh: Number of points with integer coordinates which lie inside the triange whose verticies are (0,0) , (0,21) and (21,0) ??? Answered by Stephen La Rocque.

		Page 434/886