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April 16, 2014

Search: Math - Derivative of a polynomial function(check)

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Math - Derivative of a polynomial function(check)
The red squirrel population, p, in a neighborhood park can be modelled by the function p(t)= srqt(210t+44t^2), where t is time in year. a) Determine the rate of growth of the squirrel population at t= 2years Ans: find the 1st derivative and substitute 2 in the function. b) ...
Saturday, October 16, 2010 at 6:43am by Anonymous

Math - Derivative of a polynomial function(check)
your answers are correct
Saturday, October 16, 2010 at 6:43am by Reiny

Math - Derivative of a polynomial function
i just wanted to know if it is the correct way of going about with them, i forgot to put the (check) in the title.
Saturday, October 16, 2010 at 6:35am by Anonymous

Math - Derivative of a polynomial function
A flaming arrow is shot into the air to mark the beginning of the a festival. Its height, h, in meters after t seconds can be modelled by the function h(t)=-4.9t^2+24.5t+2 How fast is the arrow traveling when it hits the ground? Explain how you arrived at your answer. (prior ...
Monday, October 11, 2010 at 7:16am by Anonymous

Math - Derivative of a polynomial function
The way to solve this is explained in your subject title. Compute the derivative of the function, which is the speed, and calculate its value at t = 5.0803 s. The derivative is V(t) = dh/dt = -9.8t + 24.5 Plug in the value of t that you got (which was correct) and compute V
Monday, October 11, 2010 at 7:16am by drwls

Math - Derivative of a polynomial function
The population, p in thousands of bacteria colony can be modelled by the function p(t)=200+20t-t^2, where t is the time, in hours, t is greater than or equal to zero. a) Determine the growth rate of the bacteria population at each of the following times. i>3h ii>8h Ans: ...
Saturday, October 16, 2010 at 6:35am by Anonymous

Math - Derivative of a polynomial function
It seems to me that your question contains the answers, or at least the means of calculating them. Why just you don't just follow those directions?
Saturday, October 16, 2010 at 6:35am by drwls

math
The price p per kilogram when x kilograms of a certain commodity are demanded given by p=[{300}/{x+3}]+105 for 0 < x < 100 Find the revenue function.
Wednesday, May 25, 2011 at 10:53am by Function

Math - derivative of a rational function
find the 1st derivative of f(x) = x/(x-1)2 Is the 1st derivative f'(x)= -x-1/(x-1)^3
Friday, October 29, 2010 at 6:48am by Farah

Math - derivative of a rational function
yes , but you need brackets like this (-1-x)/(x-1)^3
Friday, October 29, 2010 at 6:48am by Reiny

Math - derivative of sinusoidal (check)
a) Find a function y=f(x) that satisfies the differential equation dy/dx = fifth derivative. This is one of the questions in my practice test, I tried the basic equation of the trig function such as f(x)= sin(x) or f(x)=-sin(x) however in the fourth derivative they reach the ...
Monday, November 29, 2010 at 5:53am by Farah

polynomial function
Please check my answers. Find the y-intercept of the polynomial function. f(x) = -x2 - 2x + 8 I got:y=8 f(x) = (x + 1)(x - 6)(x - 1)2 I got: y=-6 f(x) = -x2(x + 6)(x2 - 1) I got:y=0
Monday, October 15, 2007 at 3:54pm by Ann

math
The derivative of f(x)=square root of {x} with respect to x is given by f'(x)={1}/square root of {x}.it is true or false?
Wednesday, May 25, 2011 at 10:43am by Derivative

Writing equation of a polynomial function
Can you help me with the following questions, I dont understand. thanks! Write the equation of a polynomial function with the given characteristics. Use a leading coefficient of 1 or -1 and make the degree of the function as small as possible. #1. Crosses the x-axis at -4, 0, ...
Tuesday, October 23, 2007 at 4:26pm by Lisa

Writing equation of a polynomial function
for #1 x-intercepts of a function are solutions to the corresponding equation since there are solutions of -4,0,and 1 the function must have been f(x) = (x+4)x-0)(x-1) or f(x) = x(x-1)(x+4) . You can expand it or leave it as is for #2 if a graph "touches" the x-axis then there...
Tuesday, October 23, 2007 at 4:26pm by Reiny

graph of a polynomial
Sketch the graph of 1/12(x+2)^2(x-3)^2 and make sure the graph shows all intercepts and exhibits the proper end behavior. I can sketch the graph but how do I do the second part? Thanks What does the function do at x= inf, or x= -inf. That is the end behaviour.
Wednesday, January 31, 2007 at 1:23pm by Jen

Math - polynomial function
Write a polynomial function with integral coefficients having the given roots. 1.) 0, -1/2, 6 2.) +or- 5i
Sunday, September 12, 2010 at 9:03pm by Jason

Math ( Polynomial )
3B) ax^2 + bx + c = a (x-alpha) (x-beta) Evaluate the derivative of the square of both sides at x = 0.
Saturday, April 13, 2013 at 11:36pm by Count Iblis

Math - Simple rational Function (check)
A pollutant has been leaking steadily into a river. An environmental group undertakes a clean-up of the river. The amount of pollutant in the river after t years the clean-up begins is given by the equation N(t)=0.5t+(1/(10t+1)) a) What quantity of pollutant was in the river ...
Monday, October 25, 2010 at 8:24am by Anonymous

Polynomial Function
Could you please check my answers? Find an nth degree polynomial function with real coefficients satisfying the given conditions. 1. n=3; 3 and i are zeros; f(2)=20 -I got: f(x)=-4^3+12x^2-4x+12 3.n=3;4 and i zeros;f(-3)=60 -I got:f(x)=6x^3+24x^2+6x+24
Tuesday, October 9, 2007 at 9:05pm by Soly

Polynomial Function
f(x) = (x-3)(x-1)(x-a) That function must be zero when x = 1 or 3. Select the constant a so that f(2) = 20 (-1)(1)(2-a) = 20 a-2 = 20 a = 22
Tuesday, October 9, 2007 at 7:10pm by drwls

Check!!!
okay so the question is: A unit circle center at the origin undergoes a series of transformations. The equation of the resulting graph is (x-3)^2+ (y+4)^2= 25 describe the transformation the unit circle underwnt Answer: The original circle was centered at the origin and had ...
Wednesday, February 14, 2007 at 3:54pm by math

Math - derivative of f(x) (check)
I used the chain rule... my working is above y = u^3 where u= (x^2-1) so dy/du = 3u^2 and du/dx = 2x then dy/dx = 3u^2(2x) so after that substitute u 3(x^2-1)^2(2x) =6x(x^2-1)^2 and I expanded it and got 6x^5-12x^3+6x is that correct? because a computer generated answer says ...
Wednesday, October 27, 2010 at 11:19am by Anonymous

Math - derivative of f(x) (check)
f(x)= (x^2-1)^3,is its derivative f'(x)= 6x^5 -12x^3 + 6x. Is there an alternative answer, because a computer generated answer is diff then mine. please help.
Wednesday, October 27, 2010 at 11:19am by Anonymous

Math - derivative of f(x) (check)
I majorly confused here, I am using a computer software which gives me a different answer and i am doubting my work over an over again, the computer software tells me: "squaring the expression means multiplying the expression by itself" and then they expand 6x[(x-1)(x-1)][x+1...
Wednesday, October 27, 2010 at 11:19am by Anonymous

Calculus derivative
Find the slope and an equation of the tangent line to the graph of the function f at the specified point. f(x)=-1/3x^2+5x+5: (-1, -1/3) Answer: f’(x)=-2/3x + 5 y=-2/3x -1 I re-worked the problem and got f'(x)=5, y=5x+ 14/3 This is from a multiple choice test and this is not an...
Wednesday, June 15, 2011 at 7:54am by Steff

polynomial
(cx-d)(2x^2 - 3x - 2) = ax^3 - 11x^2 + bx + 2 2cx^3 - (3c+2d)x^2 - (2c-3d)x + 2d = ax^3 - 11x^2 + bx + 2 2c = a 3c+2d = 11 2c-3d = -b 2d = 2 so, d=1 3c+2=11 c=3 -3 = b a = 6 check: (3x-1)(2x^2 - 3x - 2) = 6x^3 - 11x^2 - 3x + 2
Saturday, December 17, 2011 at 8:15am by Steve

Math - derivative of sinusoidal (check)
y = sinx y ' = cosx or dy/dx = cosx y '' = -sinx y ''' = -cosx y '''' = sinx y ''''' = cosx so for y = sinx the first derivative or dy/dx = cosx and the fifth derivataive = cosx so f(x) = sinx
Monday, November 29, 2010 at 5:53am by Reiny

polynomial
That is not a polynomial. It is the difference of two monomials. Combine similar terms ('x' terms and constants). 7x - 2x = ___ 4 - 9 = ___ Then express the results as a new monomial. ___x + ___. Fill in the blanks
Friday, May 27, 2011 at 1:12am by drwls

Polynomial
Create a polynomial that describes the perimeter of the outside figure: x + 8, 5, x, x, 2x, x + 8, 34 and inside figure: x + 12.
Monday, December 13, 2010 at 10:49am by Judith

Graphs of polynomial functions
What do polynomial functions look like? And what can be consider a polynomial function? Would a graph that is like an upside down V be considered as a graph of a polynomial function?
Tuesday, October 9, 2007 at 10:37pm by Jessi

Derivative
I need to find the derivative of (x) / (x^2 +1) I got x^2 + 1(1) - x(2x) all divided by (x^2 +1)^2. Now I just need to simplify it and I think I'm complicating things for myself. The final function I ended up with the first time around was (-2x^2) / (x^2+ 1). Then I tried ...
Wednesday, October 30, 2013 at 11:01pm by Anonymous

derivative
In google type: wolfram alpha When you see list of results click on: Wolfram Alpha:Comutation Knowledge Engine When page be open in rectangle type: 2x^2(3-4x)^2 and click option = After few seconds you will see everything about that function. Then click option Derivative: Show...
Saturday, June 11, 2011 at 11:31am by Bosnian

Calculas
Given f(x)=x^3−2x+5/x+4 and f′(3)=a/b, where a and b are coprime positive integers, what is the value of a+b? Details and assumptions f′(x) denotes the derivative of f(x).
Saturday, March 16, 2013 at 8:35am by Derivative of f(x)

derivative
29) Find the derivative of the function. F(X)=2x^2(3-4x)^2 This is what I have so far. I am usually pretty good at simplifying but I am missing something here. f'(x)=2x^2(4)(3-4x)^3(-4) + (3-4x)^4(4x) Here is where I go wrong. (Answer from book) =4x(3-4x)^3(-12+3) Thanks for ...
Saturday, June 11, 2011 at 11:31am by Steff

Math - Simple rational Function (check)
Consider the function f(x) = x/(x-1) Are there any turning points? Explain how this could help you graph f(x) for large values of x? Ans: turning points is another word for checking the concavity, and therefore i find the second derivative and equate it to zero and see where ...
Monday, October 25, 2010 at 10:45am by Anonymous

Derivative
what is the derivative of sin(x^(1/2)) and (sin(x))^(1/2)? Is there a difference? Thanks! Yes, there is a difference. Use the chain rule.
Sunday, September 24, 2006 at 3:55pm by Jin

Derivative
Hmmm I get x^3 + 3x^2*y + y^3 = 4 3x^2 + 6xy + 3x^2 y' + 3y^2 y' = 0 y'(3x^2 + 3y^2) = -3x^2-6xy y' = -x(x+2y)/(x^2+y^2) you must have lost a factor of 3 somewhere x + y^2= xy^2 1 + 2yy' = y^2 + 2xyy' y'(2y-2xy) = y^2-1 y' = (y^2-1) / 2y(1-x) you must have missed a sign change...
Wednesday, March 20, 2013 at 12:06am by Steve

derivative
find the first and second derivatives of (Ax^2+Bx+c)e^(3x) should i distribute e^3x into the prenthesis? or is there an easy way.... b/c when i distribute it i get a long answer..... for i get yp'=2Axe^3x+e^3xAx^2+Be^3x+e^3xBx+e^3x+ce^3x is that correct...please help me.... ...
Wednesday, November 19, 2008 at 10:30am by mary

derivative
F(X)=2x^2(3-4x)^2 another way f(x) = 2x^2(9 - 24x +16 x^2) = 18 x^2 - 48 x^3 +32 x^4 take the derivative of that = 36 x - 144 x^2 + 128 x^3 = 4x ( 9 - 36 x + 32 x^2) = 4 x (3-4x)(3-8x) Unless you have a typo, I have it right and the book has it wrong.
Saturday, June 11, 2011 at 11:31am by Damon

Math - derivative of cosine
I answered your later question first, but this one follows the same kind of reasoning. for a max slope we need the derivative of dy/dx = -4sin(x/2) which is 2cos(x/2) setting that equal to zero ... 2cos(x/2) = 0 cos(x/2) = 0 x/2 = π/2, 3π/2 , 5π/2, and 7π/2...
Saturday, November 6, 2010 at 2:22pm by Reiny

zeros of a polynomial
polynomial is x^3 - x^2 -11x + 15 If 3 is the zero of the polynomial, when you divide this polynomial with x-3, the remainder has to be 0? yes. If y=x^3 - x^2 -11x + 15, when y=0 the roots are on the axis.
Thursday, February 1, 2007 at 6:24pm by Jen

Math - Graphing a function
Graph the function below. Determine the domain, range, and horizontal asymptote. Please show all of your work. Submit your graph to the Dropbox. f(x) = (3/2)^(4-x)
Monday, June 6, 2011 at 2:17pm by CheezyReezy

Polynomial Functions
What do polynomial functions look like? And what can be consider a polynomial function? Would a graph that is like an upside down V be considered as a graph of a polynomial function?
Wednesday, October 10, 2007 at 9:03pm by Jessi

Math (Quadratic Function)
Suppose p(x)=ax^2+bx+c is a quadratic polynomial satisfying p(7)−p(3)=214. Determine the value of p(9)−p(1).
Sunday, April 28, 2013 at 9:49am by Bob

function
given that f(x)= 3-7x+5x^2-x^3, factorise the polynomial completely, hence state the set of values of x for which the function is equal or less than zero .
Saturday, December 17, 2011 at 8:26pm by kingwendu

polynomial functioms-check
Can you please check my work and answers. Find the x-intercepts of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. 1.f(x) = (x + 1)(x - 3)(x - 1)^2 -I got -1 crosses the x-axis, 3 crosses the x-...
Monday, October 15, 2007 at 4:13pm by Jesse

Math ( Polynomial )
3C) ax^2 + bx + c = a (x-alpha) (x-beta) Expand the logarithm of both sides in powers of x, equate the coefficient of x^4 of both sides.
Saturday, April 13, 2013 at 11:36pm by Count Iblis

Math ( Polynomial )
3) ax^2 + bx + c = a (x-alpha) (x-beta) A) We can write: alpha^2/beta + beta^2/alpha = (alpha^3 + beta^3)/(alpha beta). Putting x = 0 in the polynomial gives: c = a alpha beta ----> alpha beta = c/a To find alpha^3 + beta^3, expand the logarithm of the polynomial in powers ...
Saturday, April 13, 2013 at 11:36pm by Count Iblis

Math ( Polynomial )
If the polynomial, x^4 - 6x^3 + 16x^2 - 25x + 10 is divided by another polynomial x^2 - 2x + k, the remainder comes out to be x + a, find k + a, please work the complete solution instead of giving simply an answer.
Saturday, April 13, 2013 at 11:04am by Jack

Math ( Polynomial )
This time three questions - 1. If (x^2 - 1 ) is a factor of polynomial ax^4 + bx^3 + cx^2 + dx + e, show that a + c + e = b + d = 0. 2. Let R1 and R2 be the remainders when polynomials x^3 + 2x^2 - 5ax - 7 and x^ 3 + ax^2 - 12 x + 6 are divided by ( x + 1 ) and ( x - 2 ) ...
Saturday, April 13, 2013 at 11:35pm by Jack

Math ( Polynomial )
This time three questions - 1. If (x^2 - 1 ) is a factor of polynomial ax^4 + bx^3 + cx^2 + dx + e, show that a + c + e = b + d = 0. 2. Let R1 and R2 be the remainders when polynomials x^3 + 2x^2 - 5ax - 7 and x^ 3 + ax^2 - 12 x + 6 are divided by ( x + 1 ) and ( x - 2 ) ...
Saturday, April 13, 2013 at 11:36pm by Jack

math
Explain why the function f(x)={x^2-9}/{x-3} is discontinuous at x=3.
Wednesday, May 25, 2011 at 10:38am by Function

math
The function f(x)=(x-2)^4 has an inflection point at x=2.It is true or false.
Wednesday, May 25, 2011 at 10:45am by Function

math
The function f(x)=x(x-1)(x-2) has stationary points at x=0, x=1 and x=2.true or false.
Wednesday, May 25, 2011 at 10:49am by Function

Math - derivative of f(x) (check)
f(x) - x/(x-1) then f'(x) = -1/(x-1)^2 is that correct?
Tuesday, October 26, 2010 at 6:35am by Anonymous

Math - derivative of f(x) (check)
do you mean, f(x) = x/(x-1) *equal sign* if so, it's correct. :)
Tuesday, October 26, 2010 at 6:35am by jai

Math - derivative of f(x) (check)
yes, that's the derivative. did you expand your answer? or how did you do it?
Wednesday, October 27, 2010 at 11:19am by jai

Math - derivative of f(x) (check)
yes, your answer is correct. :) i think that simplification means to factor 6x(x^2-1)^2 into 6x[(x-1)^2][(x+1)^2]
Wednesday, October 27, 2010 at 11:19am by jai

Math - derivative of sinusoidal (check + help)
h(t) 0.6cos(2t) + 08 sin(t) h'(t) = v(t) = -1.2sin(2t) + 0.8cos(t) find the vertical displacement when the velocity is 0.8m/s how do i solve v(t) = 0.8m/s I tried the normal way by equating and factoring, however two answers are obtained and the second method is the identity: ...
Sunday, November 28, 2010 at 2:24am by Farah

Polynomial- Doublecheck2
I asked this earlier, but I didn't get an answer. I'm glad though, because I found a couple of typos. I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they are right, but just ...
Sunday, April 3, 2011 at 12:31am by Brittany

Calculus derivative
recall that if y = e^u where u is a function of x, y' = e^u du/dx Now, a^x = (e^(ln a))^x = e^(x*ln a) so, y' = e^(x*ln a) * ln a = ln a * a^x makes sense, since if a>e, ln a > 1, and the curve rises more steeply
Thursday, September 27, 2012 at 8:31am by Steve

math
The graph of y=|2x+c| passes through the points (1,2) and (0,4) . Find the value of the constant c . Sketch the graph of y=|2x+c| .
Saturday, March 30, 2013 at 10:52am by Modulus Function

Function
Write a function rule for the area of a parallelogram whose base is 4 inches more than its height. What is the area of the parallelogram when its height is 8 inches?
Monday, May 6, 2013 at 8:48pm by Anon

Function
Fahrenheit and Celsius are two measures of temperature. The temperature in degrees Celsius is equal to five ninths of 32 less than the temperature in degrees Fahrenheit. What is a function rule that represents this situation?
Monday, May 6, 2013 at 8:20pm by Anon

Function
Note that one root is x=1. Call it a lucky guess. That means that (x-1) is a factor of x^3-3x^2+2. Use long division to get the other factor: x^2 -2x -2 That factors into (x - 1 -sqrt3) and (x - 1 + sqrt3) That should tell you all three roots: 1, 1 + sqrt 3 and 1 - sqrt 3
Tuesday, July 22, 2008 at 9:28pm by drwls

function
consider the function g(x)=x^3+5x^2-4x+4.determine: 1)g(37) 2)the value of x between zero and a hundred such that g(x)=145456 how do i do this? 1) put in 37 for x, and compute. 2) put in 145456 in for g(x), and solve for x. for the first one, just substitute 37 for x and ...
Friday, May 25, 2007 at 5:09am by Emma

Function
Draw a vertical line, calling the left side F for Fahrenheit, and the right side C for Celsius Consider the top of the line to be the boiling point of water and the bottom the freezing point of water On the C side, mark the top 100 and the bottom 0, (very logical) On the F ...
Monday, May 6, 2013 at 8:20pm by Reiny

Math
How do you find critical points in a function? For example, find the critical points in f(x)=12+2x^2-x^4 please help me somebody find the derivative and set it equal to zero
Wednesday, February 21, 2007 at 6:53pm by Math

Calculus
Find the revenue function R(x) when P(x) is P9x)= 50- 0.002x I am getting 50x -0.002x^2 can anyone check, thanks.
Saturday, April 14, 2012 at 4:27pm by Math-check

CALCULUS/DERIVATIVE
A common problem encountered by the oil industry is to determine the most cost-effective route to connect various wells in an oil fertile area. The attached map is a copy of a section of a U.S. Geographical Survey contour map with a wetland area outlined. An existing oil well ...
Thursday, April 1, 2010 at 5:43pm by Damon

poloynomial function
Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 1) -2, -1, 1 2) i, 4 3) i, 2 - √3 4) 1, 4, 1 + √2
Saturday, June 2, 2012 at 1:03pm by arron

dividing a polynomial by a polynomial
(-6v^2 - 4 + 9v +v^3)/ (v - 4)i am just a little lost can someone explain this to me. thanks. Arrange the polonomial in descending order... v^3-6v^2 +9v -4 Then divide. v-4 !v^3-6v^2 +9v -4 The first term is v^2, so v^2*(v-4) is v^3-4v^2 subtracting that from the polonomial ...
Monday, August 1, 2005 at 7:11pm by Angel007

bio (homeostasis)check
Please Check this for me. 1. Which process involves both passive and active transport? a.)facilitated diffusion<---- b.)cotransport c.)bulk transport d.)transport through electrogenic pumps e.)osmosis 2. How does the liver in a healthy body respond to elevated blood sugar ...
Saturday, February 9, 2013 at 10:17pm by A

Calculus-Function
sketch the graph of a function in neighborhood x=2 that satisfies these conditions f(2)=3 f'(2)=2 f"(2)=-1 you can find a specific function that satisfies all of the given conditions i know the first derivative gives you critical points, and second derivative gives you points ...
Monday, April 29, 2013 at 12:22am by Liliana

Math - Simple rational Function (check)
I get the second derivative as f''(x) = 2/(x-1)^3. If f''(x) = 0 then there are no solutions, hence there are no turning points. Am i correct? But how does that help me graph f(x) for large values.
Monday, October 25, 2010 at 10:45am by Anonymous

Math- pplication of Sin and Cos&thier derivative
An oceanographer measured a set of sea waves during a storm and modelled the vertical displacement of waves in meters using the equation h(t)=0.6cos2t+0.8sint, where t is the time in seconds. a) Determine the vertical displacement of the wave when the velocity is 0.8m/s b) ...
Saturday, November 20, 2010 at 1:30pm by Farah

calculus
express P and A as a function of L and W Then just use the chain rule to find the derivative (d/dt)
Monday, January 20, 2014 at 12:26am by Steve@Math

lisa
This is a question given to me to answer:How is dividing a polynomial by a binomial similar to or different from the long division you learned in elementary school? Can understanding how to do one kind of division help you with understanding the other kind? This is my answer: ...
Thursday, January 21, 2010 at 5:00pm by Math

Polynomial Function
Could you help me with the following problem, I dont understand how to do it. Find an nth degree polynomial function with real coefficients satisfying the given conditions. 1. n=3; 3 and i are zeros; f(2)=20
Tuesday, October 9, 2007 at 7:10pm by Jen

polynomial function
correct
Monday, October 15, 2007 at 3:54pm by Reiny

polynomial function
all correct.
Monday, October 15, 2007 at 3:54pm by bobpursley

polynomial function
p(w)=4w^3-3w-4; find p(-4) and p(1/4)
Wednesday, September 28, 2011 at 8:57pm by bea

polynomial function
p(w)=4(w)^3-3w-4; find p(-4) and p(1/4)
Monday, November 14, 2011 at 1:47am by bea

polynomial function
p( - 4 )= 4 * ( - 4 ) ^ 3 - 3 * ( - 4 ) - 4 = 4 * ( - 64 ) + 3 * 4 - 4 = -256 + 12 - 4 = - 248 p( 1 / 4 )= 4 * ( 1 / 4 ) ^ 3 - 3 * ( 1 / 4 ) - 4 = 4 * 1 / 64 - 3 / 4 - 4 = 4 / ( 4 * 16 ) - 3 / 4 - 4 = 1 / 16 - ( 3 * 4 ) / ( 4 * 4 ) - ( 4 * 16 / 16 ) = 1 / 16 - 12 / 16 - 64 / ...
Monday, November 14, 2011 at 1:47am by Bosnian

polynomial function
thank you very much
Monday, November 14, 2011 at 1:47am by bea

Polynomial Functions-help
write a polynomial function that has given zeros and has a leading coefficient of 1. 2,i,-i
Friday, October 12, 2007 at 10:50pm by Anonymous

math
(TEMPERATURE CHANGE) The rate at which the temperature of an object changes is proportional to the difference between its own temperature and the temperature of the surrounding medium. Express this rate as a function of the temperature of the object
Saturday, November 12, 2011 at 9:29pm by math

Polynomial Functions-help
What do polynomial functions look like? And what can be consider a polynomial function? Would a graph that is like an upside down V be considered as a graph of a polynomial function?
Friday, October 12, 2007 at 10:50pm by Jessi

CALCULUS
Find a formula for the inverse of the function. y=x^2-x, x>=(greater than or equal to) 1/2 Please give me a step by step explanation. I think my algebra is wrong... Ty
Saturday, February 1, 2014 at 9:16am by MATH

Form a polynomial
must have complex conjugates of complex zeros given: (x+8)(x+i)(x-i)(x+8-i)(x+8+i) Multiply out. Have fun.
Wednesday, March 27, 2013 at 10:33am by Damon

DISCRETE MATHS
We need to show that 4 divides 1-n2 whenever n is an odd positive integer. If n is an odd positive integer then by definition n = 2k+1 for some non negative integer, k. Now 1 - n2 = 1 - (2k+1)2 = -4k2-4k = 4 (-k2-4k). k is a nonnegative integer, hence -k2-4k is an integer. ...
Thursday, October 24, 2013 at 11:20pm by Don(please check my math)

Math- polynomial functions
5/3 is a single real number (c+1)(c+1) = 0 c = -1 or -1 two identical real roots (vertex of parabola on axis)
Sunday, December 11, 2011 at 6:36pm by Damon

Math: Polynomial inequalities
Inequalities involving parabolas can get interesting. Solve as an equation: 2t^2 - t -3 = 0 (t+1)(2t-3) = 0 t = -1 or 3/2 Think now of the graphs of 2t^2 - 3 and t You want the region where the parabola is below the line. That is, -1 <= x <= 3/2 Of course, you can do ...
Tuesday, October 18, 2011 at 3:34pm by Steve

kaley
find the points at which the graph of 4x^2 - 4x + 12y^2 -6y = 10 has a vertical and horizontal tangent line. For the vertical only solve for y and for the horizontal only solve for x. I got the deriviative to be: (8x-4)/(-24y + 6). For the horizontal, x = 1/2 For the vertical ...
Monday, November 2, 2009 at 9:00pm by math

MATH
Expand f(x)=ln (1+x/1-x) in a Taylor Series about x=0. You must express your answer using summation notation. ---This is what I tried to do--- So I was thinking of taking the derivative of ln(1+x/1-x) and get 2/x^2-1 And then use the identity 1/1-x= sum x^k So then it will be ...
Tuesday, December 4, 2012 at 2:27pm by A.

Calculus AB (AP)
1) d/dx e^(u) is always (u')(e^(u)). In other words, take the original function and multiply it by the derivative of u (f(x)). 2) The 2nd FTC: Take the b (top number of the integral) and plug that in for t. Multiply by the derivative of b. b'(f(b)).
Wednesday, April 13, 2011 at 2:47am by A

Graphing polynomial functions
Graphing it on your graphing calculator? Or Graphing it on paper? On paper, you have zeros at -3, -1, and at x=2 At large negative x, (check me), the fuction is positive. At x between -3 and -1, it is negative, nad between x of -1 and 2 it is positive, and greater than two it ...
Saturday, October 20, 2007 at 1:45pm by bobpursley

Math - derivative of cosine
y=8cos((1/2)x)+10 dy/dx = -4sin((1/2)x) What is the maximum slope from 0 - 4(pi)? I tried equating the endpoints, but it does not work, can someone teach me how to find maximums and minimums?
Saturday, November 6, 2010 at 2:22pm by Farah

Algebra function problem, check/help?
Set up a function for the following situation: The output of a function is 8 less than 3 times a number. B) Find the input when the output is 13? Would your equation look like: 8<3=13? Or am I doing this wrong? Please help!
Tuesday, October 19, 2010 at 3:22pm by Allyson

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