Tuesday

January 17, 2017
**Calculus algebra review**

((1/2+h) -(1/2)) / h found LCD of numerator ((2)-(2+h)/2(2+h))/h is it 1

*Tuesday, January 17, 2017 by sarah*

**Calculus (Sequences)**

Hello, here is a picture of the question I am trying to solve, I believe the answer to be C, but I would just like some confirmation/correction. goo. gl/gWfhVn

*Tuesday, January 17, 2017 by Tim*

**AP Calculus**

Consider the function f(x) = 1/4x^4 - 5/3x^3 - 3/2x^2 + 15x - 3. A. Find the relative extrema for f(x); be sure to label each as a maximum or minimum. You do not need to find function values; just find the x-values. B. Determine the interval(s) where f(x) is increasing (if any...

*Monday, January 16, 2017 by Steph*

**Calculus **

I would like to make sure my answer is correct: Question: the base of a solid is the triangular region with the vertices (0,0), (2,0), and (0,4). Cross sections perpendicular to the x-axis are semicircles. Find the volume of this solid. My Work: âˆ«[0,2] (pi/2...

*Monday, January 16, 2017 by Rose*

** calculus **

Find the values for the following functions. If f(x)=2^x, show that f(x+3) -f (x-1)=15/2f(x) If G(x)= sin 2x, find G(0),G(1/4 pie),and G(7/8 pie)

*Monday, January 16, 2017 by jacob*

**calculus**

Find the domain of the variable x for which the following equations determine y as a real function of x. If G(x)= sin 2x, find G(0),G(1/4 pie),and G(7/8 pie) can someone help me please!

*Monday, January 16, 2017 by jacob*

**Vector Calculus**

Can someone help me with this please. A vector field in cylindrical polar co-ordinates is given by V = R RË† + R 3 s i n ( Ï† ) c o s ( Ï† ) Ï†Ë† + 3 z kË† where RË†, Ï†Ë†, kË† ...

*Monday, January 16, 2017 by Ariana*

**Calculus **

I would like to know if my answers are correct: Disclaimer: We are allowed to keep our answers in formula form 1. Use the washer method to find the volume of the solid that is generated by rotating the plane region bounded by y=x^2 and y = 2-x^2 about the axis y=-1 My Work: [...

*Monday, January 16, 2017 by Daisy*

**calculus **

Find the domain of the variable x for which the following equation determine y as a real function of x. y - xy = 5

*Sunday, January 15, 2017 by nabs*

**vector calculus**

Can someone help me with this please. A vector field in cylindrical polar co-ordinates is given by V = R RË† + R 3 s i n ( Ï† ) c o s ( Ï† ) Ï†Ë† + 3 z kË† where RË†, Ï†Ë†, kË† ...

*Sunday, January 15, 2017 by Ariana*

**Applied calculus **

A rectangular plot requires 2000 m of fencing to enclose it. If one of the dimensions is x meters, express the area y (m2) as a function of x. Determine the range of x.

*Saturday, January 14, 2017 by jayden*

**Calculus **

From each corner of a square of tin, 12 cm on a side, small squares of side x are removed and the edges are turned up to form an open box. Express the volume V (cm3) as a function of x. Determine the range of x.

*Saturday, January 14, 2017 by jayden*

**Calculus**

Find any critical numbers of the function f(Ã˜)= 2secÃ˜ +tanÃ˜, 10Ï€ < Ã˜ < 12Ï€ A. 67Ï€/6 B. 71Ï€/6 C. 63Ï€/6 D. A and B

*Friday, January 13, 2017 by hhhhh*

**Calculus**

Find the value of the derivative of the function f(x)=7-|X| at the extrema point (0,7)? A. Does not exist B. 0 C. 7 D. -7

*Friday, January 13, 2017 by hhhhh*

**Calculus**

If f is differentiable at x=c, which of the following statements must be true? A. f is continuous at x=c B. f^1 is continuous at x=c^1 C. f is continuous at y=c D. f is continuous at y^1=c

*Friday, January 13, 2017 by hhhhh*

**Calculus**

A surgical laser is cutting an incision in the eye according to the equation x^2-4y^2=9, y>0. The incision rates vary to allow for curvature of the eye. When x=5, dx/dt=300 manometers per second. What is dy/dt at that moment? A. 18.75 manometers per second B. 93.75 ...

*Friday, January 13, 2017 by hhhhh*

**Calculus**

What is dy/dx given that xy^2-xy+x=y?

*Friday, January 13, 2017 by hhhhh*

**Calculus**

Which of the following is written in explicit form? A.y=x B.x^2-6xy-9y^2=0 C.y=0 D. y= -âˆš1-x^2

*Friday, January 13, 2017 by hhhhh*

**Calculus**

What is the derivative of h(x)= 3x+2/x^2-5?

*Thursday, January 12, 2017 by hhhhh*

**Calculus**

What is dy/dx when y=(x^2 - 4x ) ^3 ? A. 3(x^2 -4x)^2 B. (6x - 12) (x^2 -4x)^2 C. 3(2x - 4)^2 D. 6x^2(2x-4)^2

*Thursday, January 12, 2017 by hhhhh*

**Calculus**

What is the derivative of k(x)=sin x cos x? A. -sin x cos x B. -2 sin x cos x C. 2 cos^2x-1 D. sin^2x - cos^2x

*Thursday, January 12, 2017 by hhhhh*

**Calculus **

If the position function in feet for a free-falling particle on Planet X is s(t)= -8t^2 +16 + 64, what is the velocity of the after 2 seconds in feet per second? A. -32 B. -16 C. 16 D. 64

*Thursday, January 12, 2017 by hhhhh*

**Calculus**

From each corner of a square of tin, 12 cm on a side, small squares of side x are removed and the edges are turned up to form an open box. Express the volume V(cm3) as a function of x. Determine the range of x.

*Wednesday, January 11, 2017 by nabeel*

**Calculus**

f'(x)=sqrt(x)*sin(x) The first derivative of the function f is given above. If f(0)=0, at which value of x does the function f attain it's minimum value on the closed interval [0,10]? I know the answer is 6.28, but I need steps as to why. Please and thank you.

*Wednesday, January 11, 2017 by Mike*

**PLEASE HELP BEEN STUCK ALL DAY CALCULUS**

The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of Â±0.2 inch. What is the resulting possible error in the volume of the cylinder? Include units in your answer.

*Wednesday, January 11, 2017 by Someone*

**Calculus Please Help**

The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of Â±0.2 inch. What is the resulting possible error in the volume of the cylinder? Include units in your answer. my answer 30.16

*Wednesday, January 11, 2017 by Someone*

**Calculus Please Help**

evaluate the table and find d/dx [g[f(2x)]] at x=1 f(x) 6,1,6,2 f'(x) 1,2,5,7 g(x) 1,4,4,3 g'(x) 4,5,5,-4

*Wednesday, January 11, 2017 by Someone*

**Calculus**

Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(2x) in the interval [0, 2Ï€]. MY ANSWERS: x = Ï€/2 x = 3Ï€/2

*Wednesday, January 11, 2017 by Someone*

**Calculus**

a 160-inch strip of metal 20 inches wide is to be made into a small open trough by bending up two sides on the long side , at right angles to the base. the sides will be the same height , x. if the tgrough is to have a maximum volume, how many inches should be turned up on ...

*Wednesday, January 11, 2017 by Someone*

**Calculus**

The radius of a 12 inch right circular cylinder is measured to be 4 inches, but with a possible error of Â±0.2 inch. What is the resulting possible error in the volume of the cylinder? Include units in your answer. V = Ï€rÂ²h = 16Ï€r...

*Wednesday, January 11, 2017 by Someone*

**Calculus**

The end behavior of f(x)=(2+x^2)/(x^2-36) most closely matches which of the following: y=1 y=-18 y=2 y=0 I still don't get this based on steve's answer will someone please help?

*Wednesday, January 11, 2017 by Someone*

**Calculus**

if f(x)= |(x^2-9)(x^2+1)| how many numbers in the interval [-1,1] satisfy the mean value theorem? None 1 2 3 Will someone please explain in detail?

*Wednesday, January 11, 2017 by Someone*

**Calculus**

A particle moves along the x-axis with position function s(t) = e^cos(x). How many times in the interval [0, 2Ï€] is the velocity equal to 0? 1< My answer 2 3 More than 3 I don't really get this question will someone please explain it to me?

*Wednesday, January 11, 2017 by Someone*

**calculus**

The bending moment (BM) along a beam BM = 30x -5x2 kNm where x is the distance in metres from the left hand end. Find the position and value of the maximum bending moment.

*Wednesday, January 11, 2017 by Sammy*

**Calculus**

Can you please help me get the solution to this limit without using squeeze theorem and l'hopitals rule lim x to 0 of x^3 sin(1/x) lim x to 0 of x^2 sin^2(1/x)

*Wednesday, January 11, 2017 by Liv*

**Calculus**

The end behavior of f(x)=(2+x^2)/(x^2-36) most closely matches which of the following: y=1 y=-1 y=2 y=0 There is no leading coefficient so I am not sure what the answer is.

*Wednesday, January 11, 2017 by Someone*

**calculus**

A particle is moving with the given data. Find the position of the particle. a(t) = t2 âˆ’ 5t + 3, s(0) = 0, s(1) = 20 s(t) =

*Tuesday, January 10, 2017 by lisa*

**pre-Calculus**

Make a conjeture about the symmetry of a) a product of two odd functions b) a product of two even functions c) a product of an odd function and an even function

*Tuesday, January 10, 2017 by Kevin*

**AP Calculus**

Ship A is sailing due west at 8km/hr when it sees ship B northwest of its present position. If ship B is sailing due south at 3km/hr, then how close will they come on their courses?

*Monday, January 9, 2017 by J*

**Pre-Calculus**

Tommy is building a rectangular playpen for his pigs where one side of the play area is a side of his barn. He has enough material to make a fence with a total length of 160 feet. write a funciÃ³n that represents the playpen's Ã¡rea in terms of its...

*Sunday, January 8, 2017 by Kevin*

**Pre-Calculus**

A cylinder's height is 5cm longer than the radias of its base. Write a funciÃ³n modeling the cylinder's volume in terms of its diameter.

*Sunday, January 8, 2017 by Calvin*

**Pre-Calculus**

Squares of side length x are removed from the 4 corners of an 11in by 8.5in piece of paper. The sides are then folded up to create an open-top box. Write a funcion that determines the volume of the box and determine the functions range. How much should be cut from the corners ...

*Sunday, January 8, 2017 by Calvin*

**calculus**

how do I graph this using the first and second derivative and three sign charts. i have to label the inflection point, extreme values and the intercepts also. f(x)= x^3-6x^2

*Sunday, January 8, 2017 by angie*

**calculus**

Water leaking onto a floor creates a circular pool with an area that increases at the rate of 3 square inches per minute. How fast is the radius of the pool increasing when the radius is 10 inches?

*Sunday, January 8, 2017 by angie*

**Calculus**

What is the largest possible product of two non-negative number whose sum is 1

*Sunday, January 8, 2017 by Josh*

**calculus**

What is the largest possible product of two negative number whose sum is 1?

*Sunday, January 8, 2017 by Josh*

**calculus**

is my answer to this question correct A spherical balloon is losing air at the rate of 2 cubic inches per minute. How fast is the radius of the ballon shrinking when the radius is 8 inches. Answer= .0024

*Sunday, January 8, 2017 by Josh*

**calculus**

Is this the correct answers for these questions Verify the means value theorem holds on the interval shown. Then, find the value c such that f'(c)=(f(b)-f(a))/(b-a) b.f(x)=x^3=x-4 on [-2,3] c= square root 7/3 c. f(x)= x^3 on [-1,2] c= square root 1 d. f(x)= Sqr. root of x...

*Sunday, January 8, 2017 by Angela*

**calculus**

A spherical balloon is losing air at the rate of 2 cubic inches per minute. How fast is the radius of the ballon shrinking when the radius is 8 inches.

*Sunday, January 8, 2017 by Josh*

**calculus**

Given, F(n+1)-12f(n)=0. nâ‰¥1, where F(1)=-3 find the solution to the equation.

*Sunday, January 8, 2017 by .....*

**calculus**

find the maximum and minimum value of the function f(x)= x-x^3 on the interval [-2,2] I also need help with this question What is the largest possible product of two negative number whose sum is 1?

*Sunday, January 8, 2017 by jake*

**calculus**

Verify the means value theorem holds on the interval shown. Then, find the value c such that f'(c)=(f(b)-f(a))/(b-a) a. f(x)= x-1/x on [1,3] b.f(x)=x^3=x-4 on [-2,3] c. f(x)= x^3 on [-1,2] d. f(x)= Sqr. root of x on [0,4]

*Sunday, January 8, 2017 by angela*

**More calculus**

A garden is to be designed in the shape of a circular sector, with radius r and central angle theta. the garden is to have a fixed area A. for what value of R and theta will the length of the fencing be minimized?

*Friday, January 6, 2017 by Kriss*

**Calculus**

Find all values of a, B so that the function f(x)=1 if x>3, f(x)=ax-10 if x<3, and f(x)=B otherwise is continuous everywhere. I think a is continuous everywhere since ax-10 is a polynomial, and b is continuous at x=3.

*Friday, January 6, 2017 by Kriss*

**Calculus**

use implicit differentiation to find dy/dx if 5xy+x^2y=10 Is this correct answer for this question (-5y-2xy)/(12x)

*Friday, January 6, 2017 by Angie *

**calculus**

find the equation of the tangent line to the graph of -x^2+2y^2+3x=-2 at the points with x-coordinates x=4

*Thursday, January 5, 2017 by angie*

**calculus**

use implicit differentiation to find dy/dx if 5xy+x^2y=10

*Thursday, January 5, 2017 by angie*

**calculus**

Use the definition of derivative: lim(as h approaches 0) (f(x+h)-f(x)/(h) to find f(x)=(1)/(2x).

*Thursday, January 5, 2017 by angie*

**calculus**

f'(-2) if f(x)= g(h(x))^3 Chart x= -3,-2,-1,0,1,2,3 g(x)= 0,1,3,2,0,-2,-3 h(x)= 1,2,0,3,-1,-2,0 g'(x)= 1,2,-1,-2,-2,-1,0 h'(x)= 0,-3,-2,3,-2,0,1

*Thursday, January 5, 2017 by angie*

**Calculus**

Find f'(1) if f(x)=(h(x))^3 Chart: x= -3,-2,-1,0,1,2,3 g(x)= 0,1,3,2,0,-2,-3 h(x)= 1,2,0,3,-1,-2,0 g'(x)= 1,2,-1,-2,-2,-1,0 h'(x)= 0,-3,-2,3,-2,0,1

*Thursday, January 5, 2017 by angie*

**calculus**

f'(-2) if F(x)=g(h(x))

*Thursday, January 5, 2017 by Anonymous*

**Calculus**

How do you find the total distance a particle travels on a given interval on a graph and net distance?

*Thursday, January 5, 2017 by John*

**Calculus**

Water is drained out of tank, shaped as an inverted right circular cone that has a radius of 6cm and a height of 12cm, at the rate of 3 cm3/min. At what rate is the depth of the water changing at the instant when the water in the tank is 9 cm deep? Give an exact answer showing...

*Thursday, January 5, 2017 by Ke$ha *

**calculus**

how do i get the answer for this limit limit x to 0 (4^2x-1) without using direct substitution my work so far is limit x to 0= (4^2x-1) = (4^2x/4^-1) is it correct?

*Thursday, January 5, 2017 by Anonymous*

**Calculus**

Two horizontal forces,Â Â andÂ , are acting on a box, but onlyÂ Â is shown in the drawing.Â Â can point either to the right or to the left. The box moves only along the x axis. There is no ...

*Wednesday, January 4, 2017 by Xavier*

**math - calculus help!**

An inverted conical tank (with vertex down) is 14 feet across the top and 24 feet deep. If water is flowing in at a rate of 12 ft3/min, find the rate of change of the depth of the water when the water is 10 feet deep. 0.229 ft/min 0.449 ft/min 0.669 ft/min 0.778 ft/min 44.90 ...

*Wednesday, January 4, 2017 by Danni*

**integral calculus**

integrate: [ cos ^ 2 (x) * sin (x) / ( 1 - sin(x) )] - sin (x)

*Monday, January 2, 2017 by jason*

**integral calculus**

Integrate (((cos^2(x)*sin(x)/(1-sin(x)))-sin(x))dx thanks

*Monday, January 2, 2017 by Mycah*

**calculus-add**

(2y-1)dy/dx=(3x^2+1) given that x=1 when y=2 plz show step thanks 2) (a)find the general solution of the equation (x-2)dy/dx+3y(x-1)/(x+1)=1 b)given the boundary condition y=5 when x=-1,find the particular solution of the condition given in (a) a little help would do thanks i ...

*Sunday, January 1, 2017 by ...*

**calculus**

(2y-1)dy/dx=(3x^2+1) given that x=1 when y=2 plz show step thanks

*Sunday, January 1, 2017 by ...*

**integral calculus**

integral of (dx/(coth^2(2x)*sinh^2(2x)) help, thanksss

*Saturday, December 31, 2016 by Mycah*

**calculus help**

the bend moment M of a beam is given by dm/dx=-w(1-x) where w and l are constants.determine M in terms of x given that M=wl^2/2 plz show me working step

*Friday, December 30, 2016 by ...*

**Calculus**

How do I find the limit of x/x as x approaches 0?

*Wednesday, December 28, 2016 by Anonymous*

**calculus**

solve for dy/dx=(x^2+y^2)/xy by substitution. Plz help step

*Wednesday, December 28, 2016 by ...*

**Calculus**

The Question: A particle moves along the X-axis so that at time t > or equal to 0 its position is given by x(t) = cos(âˆšt). What is the velocity of the particle at the first instance the particle is at the origin? So far I was able to determine that the ...

*Tuesday, December 27, 2016 by Stephen*

**calculus help me plz too hard show step**

charge Q coulombs at time t seconds is given by the differential equation RdQ/dt+Q/C=0, where c is the capacitance in farafd and R the resistance in ohms.solve the equation for Q given that Q=Qo where t=0 plz show step plz plz plz

*Tuesday, December 27, 2016 by ...*

**calculus too hard**

the velocity of a chemical reaction is given by dx/dx=k(a-x) where x is the amount transfered in time t,k is a constant and a is the condition at time t=0 when c=0 solve the equation and determine x in terms of t? Plz show work plz plz

*Monday, December 26, 2016 by ...*

**Calculus 3**

F(x, y) represents a velocity field of a fluid over a surface S defined by z = 6 âˆ’ 3x âˆ’ 2y. If the magnitude of the velocity in the direction of the unit normal vector, nÌ‚, on S is 3zâ„âˆš...

*Sunday, December 25, 2016 by Help me pls!*

**Calculus**

If y = 2x - 8, find the minimum value of the product of xy. I think this is -8.

*Thursday, December 22, 2016 by Anonymous*

**calculus**

when a circular plate of metal is heated in an oven, its radius increases at the rate of 0.01 cm/min. At what rate is the plate's area increasing when the radius is 60 cm?

*Wednesday, December 21, 2016 by angie*

**calculus**

A 13 foot ladder is leaning against a house when its base starts to slide away. By the time the base is 12 ft. from the house, the base is moving at the rate of 10ft./s. How fast is the top of the ladder sliding down the wall then?

*Wednesday, December 21, 2016 by angie*

**calculus**

A Veterinarian has 80 feet of fence and he wants to enclose a rectangular dog-run along the back side of his office building. He will not fence the side along the building. What are the dimensions of the dog-run that give the maximum area he desires?

*Wednesday, December 21, 2016 by angie*

**calculus**

Jen needs to make a flyer for her dog's birthday party. She wants the flyer to contain 40 square inches of printed portion and she wants to use 1 inch of each side as well as 2 inches of top and bottom of the paper for decoration. What size paper should Jen choose in order...

*Wednesday, December 21, 2016 by angie*

**calculus**

find the location and values of any global extrema of F(x)= x^3-3x^2-9x on the interval [-2,4] (you must show your work by finding critical points

*Wednesday, December 21, 2016 by angie*

**calculus **

Find two numbers whose product is 16 and whose sum of squares is minimum

*Wednesday, December 21, 2016 by angie*

**calculus**

f(x)=âˆ’x3 âˆ’x2 +16x+16 1. Calculate fâ€²(x). 2. Calculate fâ€²â€²(x). 3. Find the x values such that f(x) = 0. Note: this can be done by factoring. 4. Find the stationary point/s. Note: a ...

*Tuesday, December 20, 2016 by R*

**Pre- calculus**

Change the equation to rectangular coordinates: r= 2(sin theta-cos theta)

*Monday, December 19, 2016 by Meredith*

**pre calculus**

change the equation to rectangular coordinates: r= 2(sin theta -cos theta)

*Monday, December 19, 2016 by Meredith *

**Pre calculus**

in the equation r= 5/(sin theta +2cos theta) the letters r and theta represent polar coordinates. Write the equivalent equation using rectangular coordinates. Thanks :)

*Monday, December 19, 2016 by Meredith *

**pre calculus**

in the equation (x-4)^2+y^2=16 the letters x and y represent rectangular coordinates. Write the equivalent equation using polar coordinates. solve for r

*Monday, December 19, 2016 by Meredith *

**Calculus**

A chemical substance is draining from a conical filtering system at a rate of 100 cubic centimeters per minute into a cylindrical storage tank below. The conical filter and cylindrical tank each have a diameter of 60 centimeters, and the height of the cone also measures 60 ...

*Monday, December 19, 2016 by Luke*

**Calculus**

The horizontal position of an object from a point of origin in meters is modeled by the function x(t)= (1+sin(t))/(2+cos(t)) where t is measured in minutes and 0 is less than or equal to t which is less than or equal to 5. A) show that x(t)= (2cos(t)+sin (t)+1)/(2+cos(t))^2 B...

*Monday, December 19, 2016 by Rodger*

**Calculus Help 3 Questions**

3.The position (feet traveled) of a car is given by the equation s(t)= 4t2 + 4t. Find the time when the car is going the same speed as its average speed over the interval 0 to 10 seconds. A)t=0 B)t=2.5 C)t=5 D)t=10 E)Never 4. Consider the curve given by x2 + sin(xy) + 3y2 = C...

*Sunday, December 18, 2016 by Prince@18*

**Calculus**

Please help me. 1. Use the definition of the derivative to find f'(x), if f(x)=x^-2 2.Find the derivative of y=3t^5 - 5âˆšt + 7/t

*Sunday, December 18, 2016 by Jamie *

**Calculus**

A light on the ground moving at 0.5 m/s approaches a man standing 4 m from a wall. How fast is the tip of the manâ€™s shadow moving when the light is 10 m from the wall?

*Sunday, December 18, 2016 by Anonymous*

**Math, calculus, advanced functions, pre calculus**

An investments value, V(t) is modelled by the function V(t)=2500(1.15)^2, where t is the number of years after funds are invested A) find the instantaneous rate of change in the value of the investment at t=4, what intervals would you choose? Why? My question is ... Which ...

*Saturday, December 17, 2016 by Ruffin *

**calculus**

find the area of the region bounded by the curves f(x)=x-x^3 ; g(x)=x^2-x ; over [0,1]

*Saturday, December 17, 2016 by lis*

**Calculus Finals Review sheet!! Explanation needed**

Here is a graph of the derivative y' of a continuous, differentiable function. For approximately what values of x between ÃƒÂ¢Ã‹;â€ Ã¢â;‚¬â„¢5 and 5 does the original ...

*Saturday, December 17, 2016 by Prince@18*

**calculus**

hey can someone help me with these i need help Consider the curve given by x2 + sin(xy) + 3y2 = C, where C is a constant. The point (1, 1) lies on this curve. Use the tangent line approximation to approximate the y-coordinate when x = 1.01. Question 19 options: 0.996 1 1.004 ...

*Saturday, December 17, 2016 by hassan*

**calculus**

can you guys help me with these questions Which of the following could be the units for dy/dx if y is the surface area of a tumor and x is the radius of the tumor? square millimeters per millimeter millimeters per centimeter meters per second gallons per hour meters per radian...

*Saturday, December 17, 2016 by hassan*