Topic: coefficients list of topics
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31 items are filed under this topic.

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	Coefficients		2013-11-27
		From kim: in the expression below, what number is the coefficient of y? y2+3y+4 Answered by Penny Nom.
	A parabola		2012-06-04
		From Madeline: In a parabola, I need to know what "a" b and c determine. I think that a determines the width of the parabola, but I am not exactly sure what b, and c do. Answered by Robert Dawson.
	A fourth degree polynomial function with real coefficients		2010-10-30
		From Ryan: Question from Ryan, a student: What is the fourth degree polynomial function with real coefficients that has -1,1 and I as zeros and such that f(x)=160 Answered by Harley Weston.
	A polynomial with integer coefficients		2010-10-23
		From Adori: Question from Adori, a student: Find a polynomial with integer coefficients that has the given zeros: 2/3, 4, root of 3i, root of -3i. Answered by Harley Weston.
	Constants and coefficients		2010-03-12
		From lourdes: identify the coefficients, constant term(s), and like terms of the expression. 8x + 9 - 3x 17 - 2a + 5a - 1 7m - 7 + 6m - 6 -10 -15r -22r + 8 Answered by Penny Nom.
	Coefficients		2009-11-17
		From Da'mon: The Coefficients of the expression 8 - 5x - 4 + 3x are 5 and 3 Whether the statement is true or false. Answered by Penny Nom.
	Leading terms and leading coefficients		2009-03-31
		From Susan: Write the polynomial P(x)=x^3-3x^4+17x+11-4/3x^2 in descending order. Identify the leading term and the leading coefficient. Answered by Penny Nom.
	Constants, and coeficiants		2009-01-10
		From Kelsey: I am having trouble trying to remember what like terms, constants, and coeficiants are. My math teacher hasent been explaining it very well and i was wondering how to remember what they are, and what they are? I dont understand the concepts. Answered by Stephen La Rocque.
	Coefficients, Like Terms, and Constants		2008-08-14
		From Maddie: How Would I Answer This Problem?   Coefficients Like Terms Constants 3x+7       4m+(-3n)+n       6kp+9k+kp-14       -8y+6ab+7-3ba       c+2c+c-5c+1       I Would Really Appreciate It If You Could Help Me Sincerely, Maddie Answered by Penny Nom.
	n choose r equals n-1 choose r plus n-1 choose r - 1		2008-07-14
		From fae: Prove that ( n ) = ( n – 1) + ( n - 1 ) ( r )         ( r )        (r-1) NOTE: the ( ) should be one for n taken r and so on. but there is no one big ( ) that will cater two lines Answered by Janice Cotcher.
	A quadratic equation with odd coefficients		2008-04-15
		From Manashi: If p,q,r be any odd integers, then prove that the roots of the quadratic equation px^2+qx+r=0 can't be rational . Answered by Stephen La Rocque.
	Coefficients		2006-11-02
		From Kilihea: How do you factor the following expression so that the coefficient is 1? 4x+8 and -3x-27 Answered by Haley Ess.
	Prove that 2nCn is less than 4n, for all positive integers n?		2006-10-01
		From Anna: How can I prove that 2nCn is less than 4n, for all positive integers n? Answered by Penny Nom.
	What are the 3rd and 4th terms of (2x-y)^7?		2006-06-18
		From April: What are the 3rd and 4th terms of this sequence: (2x-y)7? I'm having an issue with this...is there any easier way to get it without completely factoring the whoooole thing out? Answered by Penny Nom.
	Coefficients, constants and like terms		2005-10-05
		From Elizabeth: In the equation -8y+6ab+7-3ab what are the coefficients; the like terms and constants? Answered by Penny.
	Binomial distribution		2003-12-17
		From Lesley: my daughter is having difficulty with the following formula P(X=x) = ( n over x) px (1-p) n-x The teacher has given them the formula but not taught them how to apply it or understand it. Answered by Penny Nom.
	Newton's binomial theorem		2003-08-30
		From William: According to page 126 of Murtha & Willard's "Statistics and Calculus" (Prentice-Hall, 1973), Newton's binomial theorem can proved inductively. I suppose that was his method, which I would like to see. Answered by Penny Nom.
	Successive coefficients in Pascal's Triangle		2002-12-27
		From Quincy: There is a formula connecting any (k+1) successive coefficients in the nth row of the Pascal Triangle with a coefficient in the (n+k)th row. Find this formula Answered by Penny Nom and Walter Whiteley.
	A complex quadratic		2002-10-06
		From Michael: I would like to know, how to solve this Complex number: quadratic equation. ix 2 + x -i = 0 Answered by Harley Weston.
	Successive coefficients in the nth row of Pascal's Triangle		2002-06-10
		From Tim: There is a formula connecting any (k+1) successive coefficients in the nth row of Pascal's Triangle with a coefficient in the (n+k)th row. find this formula. Answered by Penny Nom.
	Pascal's Triangle		2002-04-02
		From Brian: It's about (a+b)x. I remember there a triangle with numbers to remember for a faster solution. Can you please teach me? Answered by Penny Nom.
	A degree 5 polynomial		2002-02-17
		From Carla: Write an equation for a polynomial of degree 5 given the following zeros: -7+3i, -2+sqrt(13), 6 Answered by Penny Nom.
	Undetermined coefficients		2001-11-22
		From Hoda: The equation is: y" - 2y' + y = t et + 4 We need to use The method of Undetermined coefficients. I have tried assuming that the solution is Atet+Bet+C, but all I get is C=4 and I tried (At2+Bt+C)et+D, but again I get 0=0 when I calculate the first and second derivatives, so i get no information on the constants. Any suggestions? Answered by Harley Weston.
	Lucas' theorem		2001-10-09
		From Tania: How could I demonstrate: nCp is congruent to floor(n/p) (modulo p)? where rCk is a binomial coefficient, rCk = r(r-1)...(r-k+1)/k(k-1)...1, and p is a prime number Answered by Richard McIntosh.
	A quadratic function		2001-05-10
		From A parent: A quadratic function is given by f:x------ax2+b If the two points A(2, 2) and B (0, -8) are on the graph of the function, then find a and b. Answered by Penny Nom.
	A dollar, quarter, dime, nickle and penny		2001-01-07
		From Sarah: Arnold has a dollar coin, one dime, one quarter, one nickel, and a penny. The number of different sums of money that can be formed using three coins is... Answered by Penny Nom.
	6-49		2000-09-14
		From Steve: In our state lottery you must choose 6 numbers (1-49). How many different combinations are there? They can be in any order. Answered by Harley Weston.
	Binomial coefficients		2000-03-21
		From Howard Lutz: How do you find each successive numerical term in this equation y+dy=(x+dx)5 =x5+5*x4dx+10*x3(dx)2+10*x^2(dx)3+5*x(dx)4+(dx)5 I would appreciate an explanation of the method to find the numeric coefficient in a binomial expansion Answered by Penny Nom.
	Multinomial coefficients		1999-12-03
		From Suraj Das: Is there a formula for the expansion of (a+b+c) to the nth power? Does it have to do with Pascal's triangle? Answered by Penny Nom.
	Cannonballs		1999-01-27
		From Roger King: How many cannonballs can be stacked in a triangular pyramid? Answered by Penny Nom.
	What's the next term?		1998-11-12
		From Ilia: What the formula and explonation for formula for next patterns: 1) 1, 4, 10, 20, 35, 56, 84,... 2) 0, 6, 30, 90, 210, 420,... Thanks! Answered by Penny Nom.

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