Saturday

September 5, 2015
**Timerate problem(calculus)**

Sand is being dropped at the rate 10 metercube/min onto a conical pile. If the height of the pile is always twice the base radius, at what rate is the increasing when the pile is 8 m high?
*Monday, October 6, 2014 by Mike*

**calculus **

How to solve by completing the square? 1. 4(c+3)^2=1/4 2. (2p-5)^2=1/4 3. 2w^2-3w-3=0
*Monday, October 6, 2014 by Ayane*

**Calculus**

let F(x) = f(2x) and suppose that the derivative of F(x) = x^(2). Find the derivative of f(2x).
*Sunday, October 5, 2014 by Tom*

**Calculus**

So here is the question: Find and equation of the tangent line to the graph: 4)f(x)=e^(2x) passing through the point (0,0) I find derivative being f'(x) =2e^(2x) Then m = f'(0) = 2 put into point slope formula: (y-y1)=m(x-x1) y-0 = 2(x-0) which comes out to y=2x 0=2x...
*Sunday, October 5, 2014 by Tom*

**calculus**

Implicit diff. y^2 + 4xy +4y^2=40 2yy'+ _______ + 8y*y=0 I am confused with the 4xy. Would you write this out to be 4x*y'+4y OR 4x*4y' + 4y*4x'? Please help
*Sunday, October 5, 2014 by Annette*

**Calculus**

Integrate sqrt(x^2 + x) dx I have completed the squares and got x^2-x = (x+1/2)^2 -1/4 Now i dont know how to proceed, plz help me!
*Sunday, October 5, 2014 by Jamie*

**Calculus**

I have y = sin^2(3^(x)) which I rewrite as y = (sin(3^(x)))^2 I got the derivative using the chain rule as the following y' = 3(sin(3^x))^2 (cos(3x)) (3^(x)(ln(3)) Can anyone confirm whether this is right/wrong? Thanks
*Sunday, October 5, 2014 by Tom*

**Calculus**

Find the equation of the tangent to the curve y=3x^2+4x which makes a 45 degree angle with the negative x-axis
*Saturday, October 4, 2014 by Min-Gyu*

**pre-calculus**

It has been discovered in a certain state that the relationship between the number of snow shovels demanded varies linearly with its price. When the price per item was $ 38 ,2200 items were demanded; When the price was $ 49 , 2125 items were demanded. Determine the price per ...
*Friday, October 3, 2014 by irina*

**Calculus **

Find all values of x if any where the tangent line to the graph of the given equation is horizontal? y= x - sqrt (x) I am very confused would I work it like this? y = x - x^-1/2 then set x = 0? Please explain. thank you!
*Thursday, October 2, 2014 by Erin*

**pre calculus**

Use Hooke's Law for springs, which states that the distance a spring is stretched (or compressed) varies directly as the force on the spring. A force of 265 newtons stretches a spring 0.15 meter. (a) What force is required to stretch the spring 0.2 meter? (Round your ...
*Thursday, October 2, 2014 by tanner*

**Calculus**

True or false: a) if f(x) is continuous at a, then the limit of f(x) as x approaches a exists b) if the limit of f(x) as x approaches a exists, then f(x) is continuous at a My answer: a) false b) true
*Thursday, October 2, 2014 by Anonymous*

**calculus**

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. x+y=4,x=5−(y−1) 2 ;
*Wednesday, October 1, 2014 by jo*

**Stat**

Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution
*Wednesday, October 1, 2014 by Anonymous*

**Pre-Calculus/Trig...**

Help Please For the function defined by: f(x)= (x^2,x≤1) (2x+1,x>1) Define f(0). and also how would i graph f(x)?
*Wednesday, October 1, 2014 by Anonymous*

**Pre Calculus**

e^-x sqrt(3e^2x -5/4) = e^x No idea how to approach this.
*Wednesday, October 1, 2014 by Anonymous*

**Calculus**

Hi. I need help with finding the derivative of the function: y= [(sec^7 x)/7] - [(sec^5 x)/5] Thanks!
*Tuesday, September 30, 2014 by Darren*

**Calculus**

Hi! I need help finding the derivative of this function. f(x)= ln [(x(x-1))/(x-2)] Thank you.
*Tuesday, September 30, 2014 by Darren*

**Pre-Calculus/Trigonometry**

Express the following function, F(x) as a composition of two functions and f and g. f(x)= x^2/(x^2+4)
*Tuesday, September 30, 2014 by Anonymous*

**Pre-Calculus/Trigonometry**

For the sequence an = 4n + 5: find: the first five terms: find the sum of the first 25 terms: is it a arithmetic sequence? If so how can you tell, if not, why not?
*Tuesday, September 30, 2014 by Anonymous*

**Pre-Calculus/Trigonometry**

Solve the following system of equations algebraically. Verify the solution by using matrices. 8x-2y=5 -12x+3y=7
*Tuesday, September 30, 2014 by Anonymous*

**Pre-Calculus/Trigonometry**

For f(x)= 1/(x-5) and g(x)= x^2+2, find: a. (f o g)(x) b. (g o f)(6)
*Tuesday, September 30, 2014 by Anonymous*

**Stat**

Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution. what formula do i use????
*Tuesday, September 30, 2014 by Billy*

**Pre-Calculus/Trigonometry**

for f(x)= 1/(x^2-3), find: a. f(3) b.f(2+h)
*Tuesday, September 30, 2014 by Anonymous*

**Pre-Calculus/Trigonometry**

Solve the following system of equations algebraically. Verify your solution by using matrices. 3x-y=0 5x+2y=22
*Monday, September 29, 2014 by Anonymous*

**Calculus**

Solve the following e^-x (square root((3e^2x) - 5/4)) = e^x
*Monday, September 29, 2014 by Jon*

**Pre-Calculus/Trigonometry**

give an example of an arithmetic sequence also give an example of a system of equations with no solutions
*Monday, September 29, 2014 by Anonymous*

**Pre-Calculus/Trignometry**

am i right? for f(x)=2x+1 and g(x)=x^2-7 find (fog)(x. 2x^2-13 <--
*Monday, September 29, 2014 by Anonymous*

**Pre-Calculus/Trignometry**

Give an example of a function whose domain is [2,infinity).
*Monday, September 29, 2014 by Anonymous*

**Calculus**

r=log(cos^2(4theta)) what is the derivative of this?
*Monday, September 29, 2014 by Anonymous*

**Calculus**

What is the derivative of y=2^x?
*Sunday, September 28, 2014 by Anonymous*

**CALCULUS**

I need to find the unit normal vector given: r(t)= ti + (6/t) j where t= 3 I know I need to find the unit tangent vector first, which is r'(t) divided by the magnitude of r'(t). r(t) can be rewritten as ti+ 6t^-1 r'(t) = i- 6t^-2 = i- [6/ (t^2)] j For the magnitude...
*Sunday, September 28, 2014 by Dia*

**Calculus Minima Problems**

A small island is 2 km off shore in a large lake .A woman on the island can row her boat 10 km/hr and can run at a speed of 20 km/hr. If she rows to the closest point of the straight shore, she will land 6 km from a village on the shore. Where should she land to reach the ...
*Sunday, September 28, 2014 by Mike*

**Calculus Maxima/Minima**

An automobile traveling at the rate of 30 ft/sec is approaching an intersection. When the automobile is 120 ft. from the intersection, a truck, traveling at the rate of 40 ft/sec on a road at right angles with the automobile’s road crosses the intersection. How long after...
*Sunday, September 28, 2014 by Mike*

**Calculus**

A small island is 2 km off shore in a large lake .A woman on the island can row her boat 10 km/hr and can run at a speed of 20 km/hr. If she rows to the closest point of the straight shore, she will land 6 km from a village on the shore. Where should she land to reach the ...
*Sunday, September 28, 2014 by Mike*

**Pre-Calculus**

1.) Find (f - g)(x) if f(x) = 2x - 5 and g(x) = 4. 2.) Given f(x) = 4 and g(x) = 2x - 1, find (f - g)(x). Thanks so much! :)
*Sunday, September 28, 2014 by Susie*

**Calculus**

Hello, my question is the following: The derivative of f(x) = ln(x) is given by f'(x) = 1/x. Find an equation of the tangent line to the graph y = ln(x) that passes through the point (0,0). So if I go through this using the typical method I use I have the point slope ...
*Saturday, September 27, 2014 by Joshua*

**Calculus**

2. The slope of the tangent line to the graph of the exponential function y=2^x at the point (0,1) is the limit of (2^x-1)/x as x approaches 0. Estimate the slope to three decimal places. My work: (-1,0.5) (-0.5,0.586) (-0.9,0.516) (-0.999,0.5) (0,empty) (0.0001, 0.693) (0.001...
*Friday, September 26, 2014 by Anonymous*

**Calculus**

1. Evaluate the function at the given numbers (correct to six decimals places). Use the results to guess the value of the limit,or explain why it does not exist. F(t)=( t^(1/3) - 1)/(t^(1/2) - 1) ; t= 1.5,1.2,1.1,1.01,1.001; The limit of F(t) as t approaches 1. My work: t=1....
*Friday, September 26, 2014 by Anonymous*

**Pre-Calculus**

Help please If f(x)=8x and g(x)=2x+1 find (fog)(x) 16x^2+8x 16x+1 16x+8 10x+1
*Friday, September 26, 2014 by Anonymous*

**Pre-Calculus**

Help Please Solve the following system of equations. Round your answers to the nearest tenth. Your answer will be in the form: (M,N). Find M + N, rounded to the nearest tenth. 5x+2y=7 -2x+6y=9
*Friday, September 26, 2014 by Anonymous*

**Pre-Calculus**

Hello! I need help with these 2 questions: 1.) Describe how the graphs of f(x) = |2x| and g(x) = -|2x| are related. a.) All of these. b.) The graph of g(x) is a reflection of the graph of f(x) over the y-axis. c.) Non of these. d.) The graph of g(x) is a reflection of the ...
*Friday, September 26, 2014 by Paris*

**Calculus**

A man standing 9 feet from the base of a lamppost casts a shadow 6 feet long. If the man is 6 feet tall and walks away from the lamppost at a speed of 30 feet per minute, at what rate, in feet per minute, will his shadow lengthen?
*Thursday, September 25, 2014 by Mike Nguyen*

**calculus 1**

a ladder 20 ft. long rests against a vertical wall.If the bottom of a ladder slides away from the wall at a rate of 4 ft./sec, how fast is the top of the ladder sliding down the wall when the bottom of the ladder is 12 ft. from the wall? x^2 +y^2 = 20^2 x^2 + y^2 = 400 ...
*Thursday, September 25, 2014 by hasel*

**Calculus **

I am so lost, I have no idea what to do next. Find the equation of the tangent line to the graph at the indicated point f(x) =x^2 +x ; a=-1 I started out using f(-1)= (-1+h)-(-1)/h but i am so lost on what to do next. I have tried to look at examples in the book, but i do not ...
*Thursday, September 25, 2014 by Erin*

**Calculus**

It is known that the quantity demanded of a certain make of portable hair dryer is x hundred units/week and the corresponding wholesale price is shown below where p is in dollars. p = sqrt(225 - 5x) The supplier will make x hundred units of hair dryers available in the market ...
*Thursday, September 25, 2014 by Andre*

**Calculus **

The following table shows the percentage of the U.S. Discretionary Budget allocated to education in 2003, 2005, and 2009 (t=0 represents 2000) Year t 3 5 9 Percentage p(t) 6.8 7 6.2 (a) Compute and interpret the average rate of change of P(t) (b) Over the period 2003-2009 (...
*Wednesday, September 24, 2014 by Ellen*

**Math-calculus**

At a certain point on the beach, a post sticks out of the sand, it's top being 76 cm above the beach. The depth of the water at the post varies sinusoidally with time due to the motion of the tides. The depth d is modeled by the equation d=40+60cos(PI/2(t-2)) where t is ...
*Wednesday, September 24, 2014 by Matt*

**Calculus**

At what point does the normal to y=-5-1x+3x^2 at (1, -3 ) intersect the parabola a second time? Answer: Note: You should enter a cartesian coordinate. The normal line is perpendicular to the tangent line. If two lines are perpendicular their slopes are negative reciprocals -- ...
*Wednesday, September 24, 2014 by Megan*

**Pre-Calculus**

Help please Find the equation, in standard form, of the line passing through the points (2,-3) and (4,2). 5x-2y=16 y=5/2x+8 5x+2y=16 2x-3y=9
*Wednesday, September 24, 2014 by Anonymous*

**Pre-Calculus**

Help please What is the slope of the line x = 4? would it be undefined??
*Wednesday, September 24, 2014 by Anonymous*

**Pre-Calculus**

Help please, am i correct? The border line of the linear inequality 4x-2y < 1 is solid. True False <--
*Wednesday, September 24, 2014 by Anonymous*

**Pre-Calculus**

help please Identify the slope and intercept of the following linear equation. y=3/7x-5 Slope: 3/7; intercept: 5 Slope: -5; intercept: 3/7 Slope: 5; intercept: 3/7 Slope: 3/7; intercept: -5
*Wednesday, September 24, 2014 by Anonymous*

**calculus**

Z=square root of(x^2+y^2) + xy Find the partial derivatives: x, xx, y, yy, xy. Thanks.
*Wednesday, September 24, 2014 by jean*

**Pre-Calculus**

help please in what form is the following linear equation written: 3x-2y=4 Slope-intercept Point-slope Standard Rise-run
*Wednesday, September 24, 2014 by Anonymous*

**Calculus I**

Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
*Wednesday, September 24, 2014 by Anonymous*

**calculus**

Find the interval [a, b] on which the function f(x) = 2 x3+3 x2−12 x+3 is decreasing. Enter your answer as: [a, b] for some constants a, b.
*Wednesday, September 24, 2014 by Anonymous*

**calculus**

Find the derivative of (6x^2+4y^2)/(3x+7y)=3 using implicit and quotients rule. Thank you!
*Tuesday, September 23, 2014 by MathLover*

**Calculus**

A sinusoidal section is to be built as part of a roller coaster track. The high point is h=27 m at a horizontal distance d=0 m. It has a low point at h=-3 m at d=50 m. a. Write an equation expressing h in terms of d. b. The lengths of the horizontal timbers used to build the ...
*Tuesday, September 23, 2014 by Nick*

**Calculus**

Scorpion Gulch and Western Railway are preparing to build a new line through Rolling Mountains. They have hired you to do some calculations for tunnels and bridges needed on the line. You set up a Cartesian coordinate system with its origin at the entrance to the tunnel ...
*Tuesday, September 23, 2014 by Nick*

**calculus**

Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
*Tuesday, September 23, 2014 by Anonymous*

**calculus**

Suppose that the number of bacteria in a plate of food is given by N(T)= 10T^2 - 40T + 200, -1<=T<=20 where T is the temperature of the food in degrees Celsius. Suppose that the temperature of the food when it is left out on a picnic table is given by T(t)= 4t + 10, 0<...
*Tuesday, September 23, 2014 by Anonymous*

**Calculus**

A spacecraft is in an elliptical orbit around the earth. At the time t=0 hours, it is at its apogee (highest point), d=1000 km above the earth's surface. It is at its perigee (lowest point) d=100 km above the surface 50 minutes later. a. Assuming that d varies sinusoidally...
*Tuesday, September 23, 2014 by Nick*

**Pre-calculus/Trignometry**

Which of the following is a correct equation for the line passing through the point (-1,4) and having slope m = -3? A. y-4=-3(x+1) B. y=-3x+1 C. 3x+y=1 D. y=-1/4x-3
*Tuesday, September 23, 2014 by Anonymous*

**Calculus I**

I have to determine if this function is either odd or even or neither. f(x)=x^3*abs(x^3) + x^3 I do not know how to approach this question as the absolute value is giving me trouble. Please help. Thanks.
*Tuesday, September 23, 2014 by Anonymous*

**College Pre-Calculus**

find a function m such that m(f) is the number of miles in f feet
*Tuesday, September 23, 2014 by Anonymous*

**Calculus**

At a certain point on the beach, a post sticks out of the sand, its top being 76 cm above the beach. The depth of the water at the post varies sinusoidally with time due to the motion of the tides. The depth d is modeled by the equation d=40+60cos(pi/6(t-2)) where t is the ...
*Monday, September 22, 2014 by Nick*

**AP Calculus BC**

A giant soda glass is formed by rotating the graph of f(x)= .03x^2+1.125, 0<=x<5 f(x)= -.2(x-5)^2+1.875, 5<=x<6 f(x).1(x-6)^2+1.675, 6<=x<=7 about the x axis a) If the measurements are in inches, find the capacity of the glass in cubic inches B) If 16.3787 cm...
*Monday, September 22, 2014 by Zaina*

**calculus**

Q: Suppose that for all xE(0,5), f(x) is between 1+x and 3+sin((pi)(x)). Find lim x->2 f(x). Is this question related to the intermediate value theorem? It is confusing me, can anyone help out? I am not certain of what xE(0,5) is defining, is that a set of x values or am I ...
*Sunday, September 21, 2014 by Josh*

**pre calculus**

Use a calculator to find the approximate value of sin-1( 0.635).
*Saturday, September 20, 2014 by math*

**Calculus**

To estimate the height of a building, a stone is dropped from the top of the building into a pool of water at ground level. How high is the building if the splash is seen 6.7 seconds after the stone is dropped? Use the position function for free-falling objects given below. (...
*Friday, September 19, 2014 by Zoey*

**Pre-Calculus Questions**

Hi! Can someone help me with these? Thanks! 1.) Determine the slope and the y-intercept of the equation of the line passing through the points (-5, 3) and (1, -3). Write the equation of the line in slope intercept form. 2.) Determine the x- and y- intercepts and use them to ...
*Friday, September 19, 2014 by Lanie*

**Pre-Calculus**

Hi! I need help with these two. Here's the link for both pictures. 1.) Determine the intervals over which the function is increasing, decreasing, or constant. Write your answer in interval notation. Link for photo: file:///C:/Users/Cynthia/Downloads/Save.PNG 2.) ...
*Friday, September 19, 2014 by Faith*

**calculus**

Summarize all the pertinent information obtained by applying the final version of the graphing strategy Curve-sketching techniques to f,and sketch the graph of f. f(x)=(x-1)^3(x+3)
*Friday, September 19, 2014 by maribel*

**calculus**

f(x)=8x^3-2x^4 and sketch a graph of f.
*Friday, September 19, 2014 by maribel*

**calculus**

How to find the x and y coordination of all inflection points? f(x) = x^4- 12x^2?
*Friday, September 19, 2014 by maribel*

**Math (Pre-Calculus)**

Can someone help me with this? Thanks! Find the zeros of the function algebraically. f(x)=x^2-8x+15 ---------------- 10x
*Thursday, September 18, 2014 by Ben*

**Pre-Calculus**

1.) Which equation represents a function? A. y=-2x+1 B. x=y^2-1 C. y^2=1/3x D. None Of These E. x=4 2.) The zeros of a function f are the x-values for which f(x) = 0. True or False?
*Thursday, September 18, 2014 by Sofia*

**math calculus 3**

find a formula for a function g( x,y,z) whose level surfaces are planes parallel to z=3x-2y+7
*Thursday, September 18, 2014 by annaloris*

**Calculus **

Calculate the average rate of change of the given function f over the intervals [a, a+h] where h=1, 0.1, 0.01, 0.001, and 0.0001. I have no clue how to do this. Any help would be appreciated. Thanks I know I use the formula f=f (a+h) - f (a)/h Then do I need to plug in the -2x...
*Tuesday, September 16, 2014 by John*

**Pre-Calculus**

Hi! I'm having trouble with this math question; can someone help? Thanks! :) Given the function f(x)=x^2+9, solve. a.) Find f(-3) b.) Find f(x-2)
*Tuesday, September 16, 2014 by Tiffany*

**Calculus I**

Suppose we have a metal bar of length L0 metres at temperature T0 in degrees Celsius.When the bar is heated or cooled, the length of the bar changes. The amount that the length changes is proportional to the product of the temperature change and the original length of the bar ...
*Tuesday, September 16, 2014 by Anonymous*

**Calculus**

I do not understand what this question is asking and how to get the result for it: "Suppose we have a metal bar of length L0 metres at temperature T0 in degrees Celsius.When the bar is heated or cooled, the length of the bar changes. The amount that the length changes is ...
*Tuesday, September 16, 2014 by Anonymous*

**Pre-Calculus/Trigonometry**

Help please Which of the following is the equation of a line that passes through the points (2,5) and (4,3)? y = -x + 7 y = x + 7 y = 2x + 5 y = -2x + 5
*Tuesday, September 16, 2014 by Anonymous*

**differential calculus**

a SECURITY CAMERA is centered 50 feet above a 100-foot hallway. it is easiest to design the camera with a constant angular rate of rotation, but this results in a variable rate at which the images of the surveillance area are recorded. so, it is desirable to design a system ...
*Tuesday, September 16, 2014 by =)*

**differetial calculus-related rates**

LINEAR VS ANGULAR SPEED A wheel of a radius 30 centimeters revolves at a rate of 10 revolutions per second.A dot is painted at a point P on the rim of the wheel. a)find dx/dt as a function of ϴ. b)use a graphing utility to graph a function in part (a) c)when is the ...
*Tuesday, September 16, 2014 by =)*

**differential calculus**

ANGLE OF ELEVATION A balloon rises at a rate of 4 meters per second from a point on the ground 50 meters from an observer.Find the rate of change of the angle of elevation of the balloon from the observer when the balloon is 50 meters above the ground. please show all ...
*Tuesday, September 16, 2014 by =)*

**differential calculus**

ADIABATIC EXPANSION when a certain polyatomic gas undergoes adiabatic expansion,its pressure p and volume V satisfy the equation pV^1.3 =k,where k is constant.Find the relationship between the related rates dp/dt and dV/dt. this is a problem of related rates please show all ...
*Tuesday, September 16, 2014 by =)*

**Calculus **

find an equation of the tangent line to the graph of the function f through the point (xsub0, ysub0) not on the graph. TO find the point of tangency (x,y) on the graph of f, solve the equation ....
*Tuesday, September 16, 2014 by Anonymous*

**Calculus-Math**

The ordering and transportation cost C for components used in a manufacturing process is approximated by the function below, where C is measured in thousands of dollars and x is the order size in hundreds. C(x) = 12((1/x)+((x)/(x+3))) (a) Verify that C(2) = C(15). C(2) = 54/5 ...
*Monday, September 15, 2014 by Karen*

**pre-calculus**

At a selling price of $ 54 , a lamp company breaks even on total sales of $ 3564 . If the company's overhead is $ 396 , find the marginal production cost per lamp and find the profit on sales of 145 lamps.
*Monday, September 15, 2014 by Anonymous*

**Pre-Calculus/Trigonometry**

Am I right? Which of the following is the equation of a line that passes through the point (3,2) and is parallel to the y-axis? y = 3 x = 2 y = 2 x = 3 <---
*Monday, September 15, 2014 by Anonymous*

**Pre-Calculus/Trigonometry**

Help please What is the slope of the line that passes through (1,0) and is parallel to y = 3x + 5?
*Monday, September 15, 2014 by Anonymous*

**calculus**

Can you help me solve this problem? I really don't know what to do. I solve problems like for example the rate of change of the elevation but I just encountered this kind of problem so I really don't know what to do. Please help me The endpoints of a movable rod of ...
*Monday, September 15, 2014 by y*

**Pre Calculus **

A motorboat travels 48 miles down a river in the same time it takes to travel 32 miles up the river. If the rate of the current is 4 miles per hour that is the rate of the boat still water?
*Monday, September 15, 2014 by Jody*

**AP Calculus**

Find an equation of all tangent lines for the curve x^2-xy+y^2=16 x=-2 2x-(xy'+y(1))+2yy'=0 2x-xy'+y+2yy'=0 y'(-x+2y)=-2x-y y'=-2x-y/-x+2y y'=-2(0)-y/-(0)+2y y'=-y/2y Not sure what to do now?
*Sunday, September 14, 2014 by Selena*

**Pre-Calculus**

Find all the rational zeros of the polynomial, and then find the irrational zeros P(x)= 2x^4+15x^3+31x^2+20x+4
*Sunday, September 14, 2014 by Drue*

**Pre-Calculus**

Find a polynomial with integer coefficients that satisfies the given conditions. P has degree 2 and zeros 2 + i and 2 − i.
*Sunday, September 14, 2014 by Drue*

**Pre-Calculus**

Two polynomials P and D are given. Use either synthetic or long division to divide P(x) by D(x),and express the quotient P(x)/D(x) in the form P(x)D(x) = Q(x)+ R(x)D(x) . P(x) = 6x^4 − 3x^3 + 29x^2, D(x) = 3x^2 + 13
*Sunday, September 14, 2014 by Jose*

**Pre-Calculus**

Find all the real zeros of the polynomial. Use the quadratic formula if necessary. 4x^3 − 10x^2 + 9
*Sunday, September 14, 2014 by Jessica*