Thursday
May 5, 2016

# Posts by Yoona

Total # Posts: 41

math
a rectangu7loar field is to be enclosed with exactly 240 meters of fencing materials. if the length is 8 meters more than the width, find the dimensions of the field with solution pls.
January 13, 2015

math for me!!!!!!
Wait what is the answer then??
June 2, 2014

calculus
The three pigls are building their houses while the brik=ck house building pig and the stick house building pig are working at a steady rate, the straw house building pig(knowing the wolf will arrive first at his house) is frantically increasing his rate of building by 2feet/...
March 29, 2012

calculus
3. Let f be the function defined by f(x)=ln(2+sinx) for pi<=x<=2pi a. Find the absolute maximum value and the absolute minimum value of f. Show the analysis that leads to your conclusion. b. Find the x-coordinate of each inflection point on the graph of f. Justify your ...
February 13, 2012

calculus
1. Let f be the function that is defined for all real numbers x and that has the following properties. (i) f''(x)=24x-18 (ii) f'(1)=-6 (iii) f'(2)=0 a. Find each x such that the line tangent to the graph of f at (x, f (x)) is horizontal b. Write an expression ...
February 13, 2012

calculus
5. If f (x)=(2x+1)^4 then the 4th derivative of f(x)=0 at x = 0 is..
February 12, 2012

calculus
2. Let f(x) = ksin(kx), where k is a positive constant. Find the area of the region bounded by one arch of the graph of f and the x-axis
February 12, 2012

calculus(Lab)
Well, first graph the graph of f(x)=-1/10x^2 + 3 2. We are going to approximate the area between f and the x-axis from x = 0 to x = 4 using rectangles (the method of Riemann sums). This is not the entire area in the first quadrant, just most of it. Draw four inscribed ...
January 25, 2012

Research paper(economics)
how many Parks and Resorts does Disney have? It's for an economic projects. thank you
January 21, 2012

Research paper(economics)
thank you. Really appreciate it
January 21, 2012

Research paper(economics)
so is it profitable? I'm novice when it comes to economics
January 21, 2012

Research paper(economics)
How do you find how Ebay is doing economically, like an economic overview.
January 21, 2012

calculus
5. Let for and f(x)=12X^2 for x>=0 and f(x)>=0 a. The line tangent to the graph of f at the point (k, f(k)) intercepts the x-axis at x = 4. What is the value of k? b. An isosceles triangle whose base is the interval from (0, 0) to (c, 0) has its vertex on the graph of f...
January 3, 2012

calculus
6. Determine a, b, c, and d so that the graph of y=ax^3+bx^2+cx+d has a point of inflection at the origin and a relative maximum at the point (2, 4). Sketch the graph.
January 3, 2012

calculus
3. The radius r of a sphere is increasing at a constant rate of 0.04 centimeters per second. (Note: The volume of a sphere with radius r is v=4/3pir^3 ). a. At the time when the radius of the sphere is 10 cm, what is the rate of increase of its volume? b. At the time when the ...
January 3, 2012

calculus
2. Consider the function f defined by f(x)=(e^X)cosx with domain[0,2pie] . a. Find the absolute maximum and minimum values of f(x) b. Find the intervals on which f is increasing. c. Find the x-coordinate of each point of inflection of the graph of f.
January 2, 2012

calculus
sorry for the double post
January 2, 2012

calculus
2. Consider the function f defined by f(x)=(e^X)cosx with domain[0,2pie] . a. Find the absolute maximum and minimum values of f(x) b. Find the intervals on which f is increasing. c. Find the x-coordinate of each point of inflection of the graph of f.
January 2, 2012

calculus
1. A sheet of cardboard 3 ft. by 4 ft. will be made into a box by cutting equal-sized squares from each corner and folding up the four edges. What will be the dimensions of the box with largest volume? so I did V=lhw and found l=4-2h and w=3-2h I also distributed them in the ...
December 18, 2011

calculus
3. Given the function defined by y = x + sinx for all x such that -π/2<=x<=3π/2 a. Find the coordinate of all maximum and minimum points on the given interval. Justify your answers. b. Find the coordinates of all points of inflection on the given interval. ...
December 18, 2011

calculus
5. Find the point (x, y) on the graph of y=sqr(x) nearest the point (4, 0).
December 18, 2011

calculus
1. A sheet of cardboard 3 ft. by 4 ft. will be made into a box by cutting equal-sized squares from each corner and folding up the four edges. What will be the dimensions of the box with largest volume?
December 18, 2011

calculus(differentian)
x=(6-2y²)/(1+y) differentiate with respect to y I saw this in a question here but..I dont get how the person go that answer.
December 4, 2011

calculus(QUICK QQUESTION!!)
if f(t) were continious on the interval [-2,1] but youo were only given the function for t=-2,-3/2,-1,-1/2 ..,3/2 and 2, explain how would you apporximate f'(1)
December 1, 2011

calculus
They're actaully 2 question :D 1.find the rate of change of the distance between the orgin and a moving point on the graph of y=x^2+1 if dx/dt=2 centimeters per second when x=1. 2.A triangular trough is 12 feet long and 3 feet across the top. it ends are isosceles ...
November 30, 2011

Calculous
A dunction is continious on the closed interval [-3,3] such that of f(-3)=4 and f(3)=1. The functions F' anf F'' have the properties shown below Ok there's supposed to be a table but you cant really see it -3<x<-1 F'(x) is positive F''(X) is ...
November 21, 2011

AP Calculous
f(x) is both functions.. I dont know why the system didnt let me keep the spaces to show that
November 21, 2011

AP Calculous
let f be the function defined by |x-1|+2 for X<1 f(x)= ax^2-Bx, for X>or equal to 1. where a and b are constants a)if a=2 and b=3 is f continious for all x? justify your answer b)describe all the values of a and b for which f is a continious function c) For what values ...
November 21, 2011

Calculous
the figure shows the graph of F', the derivative of a function f. the domain of the function f is the set of all X such that -3< or equal to x<or equal to 3 a)for what values of x in the domain does f have a relative max and amin? justify b) for what values of x is ...
November 21, 2011

Calculous
let f be the function defined by |x-1|+2 for X<1 f(x)= ax^2-Bx, for X>or equal to 1. where a and b are constants a)if a=2 and b=3 is f continious for all x? justify your answer b)describe all the values of a and b for which f is a continious function c) For what values ...
November 21, 2011

Calculous
let f be the function defined by f(x)=12x^2/3 -4X a)find the intervals on which f is increasing I got the rest of the question but I'm still not getting the increasing/decreasing thing
November 20, 2011

Calculous
thanks!!! that was VERY helpful!!
November 20, 2011

Calculous
opps it is x(t)=t^3-6t^2+9t+11 Sorry!!
November 20, 2011

Calculous
A particle moves along the c-axis so that at time t its position is given by x(t)=t^2-6^t+9t+11 a)What is the velocity of the particle at t=0 b)During what time intervals is the particle moving to the left? c)What is the total distance traveled by the particle t=0 to t=2
November 20, 2011

AP Calculous
let f be the function defined by f(x)=3X^5 -5X^3 +2 a) on what interval is f increasing? b) on what interval is the graph of f concave upward? c)Write the equation of each horizontal line tangent to the graph of f
November 20, 2011

calculous
thank you!!!!!!!!!!! I dont think any of my teachers would deticate some of their time for us:D
November 7, 2011

calculous
A particle moves on the x –axis so that its position at any time is given by x(t) = 2t3 + 1. a. Find the acceleration of the particle at t = 0. b. Find the velocity of the particle when its acceleration is 0. c. Find the total distance traveled by the particle from t = 0 ...
November 7, 2011

calculus
5. Let f be the function given by f(x) = x3- 7x + 6. a. Find the zeros of f b. Write an equation of the line tangent to the graph of f at x = -1 c. Find the x coordinate of the point where the tangent line is parallel to the secant line on the interval [1, 3].
November 7, 2011

AP Calculous
A particle moves on the x –axis so that its position at any time is given by x(t) = 2t3 + 1. a. Find the acceleration of the particle at t = 0. b. Find the velocity of the particle when its acceleration is 0. c. Find the total distance traveled by the particle from t = 0...
November 6, 2011

calculous
I'm in AP calc. We still didnt learn what descartes rule is.. Can you be more explisive please?
November 5, 2011

calculous
3.Given the function f defined by f(x)=2x^3-3x^2-12x+20 a.Find the zeros of f b.Write an equation of the line perpendicular to the graph of f at x = 0 c. Find the x and y coordinates of all points on the graph of f where the line tangent to the graph is parallel to the x axis.
November 5, 2011

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