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March 25, 2017

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Number of results: 8

AP CAlc. AB Please helppp!!
f(x)=|x|+1 Let A(r) be the enclosed by the x axis, the line x=-2, the graph of the function f, and the line x=r for any r=>-2 A) Write A(r) as a piecewise function with its joints at r=0 Please walk me through each step i am really confused!!
September 8, 2014 by Lily

AP Calc. AB
1.For f(x)=sin^2(x) and g(x)=0.5x^2 on the interval [-pi/2,pi/2], the instantaneous rate of change of f is greater than the instanteneous rate of change of g for which value of x? a)0 b)1.2 c)0.9 d)-0.8 e)1.5 2. If g(x)=√(x) (x-1)^(2/3), then the domain of g'(x) is? a.{x...
October 19, 2014 by Jacke

AP CaLC. AB
A particle moves along the x-axis with the velocity at time t=>0 given by v(t)=t^2-3 cos(t). If the particle is at the origin when t=0, its position at the time when v=0, x=?? a. 5.276 b. 334.965 c. 15.276 d. 6.682 e. 2.670
January 3, 2015 by Rachel

calc
Use a linear approximation (or differentials) to estimate the given number. sqrt(99.6) so i think i start with f(x)=sqrt(100-x) so f'(x)= 1/2(100-x)^-1/2 (-1) using a=0 f(x)= 10 and f'(x)= -0.05 when using L(x)=f(a)+f'(a)(x-a) where x=a I get 10 + -0.05(x) and then i plug in ...
March 22, 2015 by kirsten

calc
A particle moves along the x-axis with velocity v(t) = t^2 − 1, with t measured in seconds and v(t) measured in feet per second. Find the total distance travelled by the particle from t = 0 to t = 2 seconds.
August 13, 2015 by Anonymous

Calc
Oil spilled from a ruptured tanker spreads in a circle whose area increases at a constant rate of 6.5 {\rm mi}^2{\rm /hr}. How rapidly is radius of the spill increasing when the area is 10 {\rm mi}^2? The radius is increasing at
November 3, 2015 by Smith

Pre calc aesthetic quadratic stuff
two numbbers have sum of 9 and product of 20. What singlevariable quadratic equation in form of ax^2+bx+c=0 can be used to represent the product of the two numbers
March 28, 2016 by Sik-kunt zyzz

Calc
You plan to paint a sphere of radius 200 cm with a coat of pain .2 cm thick. Use differentials to approximate the amount of paint that is needed. Use the equation for the volume of a sphere.
October 26, 2016 by Jenna

Calc
If a car is driving in a straight line with constant acceleration a, initial velocity v0, and initial position s0, find a formula for the position function of the car. How would I solve this equation?
November 1, 2016 by James

Calc
Water flows from a storage tank at a rate of 500 − 3t liters per minute. Find the amount of water that flows out of the tank during the first 13 minutes.
November 19, 2016 by Ian

pre calc
Which three of the twelve basic functions are bounded( above and below)? Three of the tweleve basic functions are even. Which are they?
December 17, 2009 by kate

Calc
When you are solving for the point of intersection between planes do you follow the same steps when solve for the point of intersection between lines?
October 17, 2010 by C

Calc
A particle moves along a path described by x=cos³t and y=sin³t. The distance that the particle travels along the path from t=0 to t=π/2 is... Thank you!
April 25, 2011 by Erica

Pre-Calc B
How do I find zeros on a graph of a cubic function? I can tell that two of the zeros are -4 and 3 because they show on the graph, but how do I find the other?
January 20, 2012 by Emma

pre-calc
simplfy the expression by double angle formula or a half angle formula. cos^2(x/2)-sin^2(x/2) 2sin(x/2)cos(x/2)
April 22, 2012 by Amanda

CALC
Determine the maximum and minimum of each function on the given interval. a)  = 2x^3 − 9x^2 ,−2 ≤ x ≤ 4 b)  = 12x − x^3 ,  x∈ [−3,5]
April 17, 2013 by PLEASE HELP

Pre-Calc (Prove the identity)
Prove the identity. (show steps please!) Thank you! tan^2(x/2+π/4)=(1 + sin x)/(1 − sin x)
November 24, 2013 by Anonymous

Calc
A particle is moving along the curve y= 3 \sqrt{3 x + 4}. As the particle passes through the point (4, 12), its x-coordinate increases at a rate of 4 units per second. Find the rate of change of the distance from the particle to the origin at this instant.
March 15, 2009 by Trey

CALC 2
Let an = Hn - ln(n), where Hn is the nth harmonic number Hn = 1 + 1/2 + .... + 1/n a. Show that an > 0 for n>= 1 (Hint: show Hn >= integral from 1 to n+1 dx/x) b. Show {an} is decreasing by interpreting an - an+1 as a positive area. (Hint: use the previous part) c. ...
April 6, 2014 by Bae

Calc
A particle is moving along the curve y= 4 sqrt{2 x + 2}. As the particle passes through the point (1, 8), its x-coordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.
April 21, 2014 by Lucy

pre-calc
two observers 3 miles apart and facing each other find that the angles of the elevation of a balloon in the same vertical plane with themselves are 28degree and 31 degree respectively.find the distance from the balloon to the observer located at the 31 angle?
November 6, 2012 by Haley

Pre-Calc.
Write the standard form of the ellipse x^2+4y^2+6x-8y+9=0 I'm not sure how to start it, I think I need to set it equal to one because eventually it needs to end up equal to one but I'm not certain. I know the answer is (x+3)^2/4 + (y-1)^2/1=1 but have no idea how to get there...
March 6, 2015 by Julissa

MATH - CALC
Use calculus and algebraic methods to do a complete analysis (i.e., intervals of increase and decrease, intercepts, critical points, points of inflection, and intervals of concavity) for each of the following functions and then sketch a graph of the function. (19 marks) ƒ(x...
May 27, 2016 by Ab

Math Calc
Which of the following statements is/are true 1. If f'(c)=0 then f has a local maximum of minimum at x=c 2. If f is continuous on [a,b] and differentiable on (a,b) and f'(x)=0 on (a,b) then f is constant on [a,b] 3.The Mean Value theorem can be applied to f(x)=1/x^2 on the ...
January 5, 2017 by Ke$ha

pre calc
My teacher asked for the EXACT VALUES of sin(pi/6) cos(pi/4) csc(pi/3) I have to figure it out without a calculator? Also, if I was to do with it with a calculator, would csc be typed as 1/sin?
December 9, 2011 by Jill

Pre-Calc
A farmer is making a pig pen next to the barn. He has enough materials to build 50 feet of fencing. a)what is the largest area he can fence in? b)what are the dimensions of the pen with the largest area?
February 19, 2014 by John

calc
The velocity of a particle moving along the x-axis is v(t) = t2 – 2t, with t measured in minutes and v(t) measured in feet per minute. To the nearest foot find the total distance travelled by the particle from t = 0 to t = 3 minutes..
August 22, 2015 by Anonymous

Pre-Calc help
- Determine the​ quarter points of y=2−3cos(4x−π) (Type an exact answer using π. Type ordered pair) TEACH ME HOW TO GET THE ANSWERS AND THANKS!.
August 4, 2016 by chichi

calc.
find the sum of the series of (-2)^n/3^n+1. This is an alternating series... what if we rewrite it as an= (1/3)* (-2/3)^(n) Divide any nth term by the n-1 term and see if you get a ratio term r. This might be a geometric series.
April 17, 2007 by kelly

calc 2
given x=2cos(t)+t*sin(t) and y=2sin(t)-t*cost(t), with t:[pi, 2pi] find all critical values. by finding dy/dx and setting it equal to zero, i only find one value, t=6.121, within that domain. that gives you x=.987. I'm suppose to get three other answers. How do i do this?!
May 20, 2007 by Mischa

Math (Pre-calc)
I need to know how to solve this for my review questions. Thanks! The wheel on a racing bike have a radius of 14 in. How fast is the cyclist traveling in mph if the wheels are turning at 280 revolutions per minute. find the exact value of the expression. Sin(2pi/3)+ tan(3pi/4)
May 28, 2014 by matt

pre-calc
Two nonvertical lines have slopes m1 and m2, respectively. The lines are parallel if ___ and the ___ are unequal; the lines are perpendicular if ___.
January 8, 2012 by nelly

Calc 2 Urgent Surface Area
Find the area of the surface generated when y=4x and x=1 is revolved about the y-axis. We have to use the surface area formula.
December 14, 2016 by Melissa

calc
how would you do this improper integral 1/(x-1) from 0 to 2 this is improper at one, so I split it up into two integrals ln(x-1) from 0-1 and ln(x-1) from 1-2 I then did for the first one the (lim t->1(-) of ln(t-1))-(ln(0-1)) and then the same thing for the second part I ...
February 9, 2008 by sarah

Physics
A sphere of radius 10 cm is charged to a potential of 500V. Calculate the outward pull per unit area. Ans: 1390 * 10^-8 N/m^2 -------- I'm sure the calc is simple, but how do I calculate "outward pull" from voltage?
December 24, 2009 by Sean

Calc. Help Please.
Find the value of the definite integral using sums, not antiderivatives: int= integral sign int((x + 2)/(x^(3/2)),x= 16..25)dx Please help... even just showing me how to get started would be greatly appreciated.
April 5, 2011 by CM

PRE-CALC
A biased coin has a 0.4 probability of landing on tails. The random variable X, based on a single toss of the coin, is defined as follows: X = 0 if heads appears; X = 1 if tails appears. What is the mean value of X? A) 0.7 B) 0.5 C) 0.4 D) 0.3 E) 0.6
March 24, 2014 by Anonymous

chem
sample of 1.00g of BaSO4 and a similar sample of 1.00g of CaSO4 were added to water at 25 Celsius to give 1L of solution. Calc. the concentration of Ba2+, Ca2+, and SO4^2- ions present in the solution?
August 3, 2014 by mike

AP CALC. AB
2. A cubic function is a polynomial of degree 3 and has the form y=mx^3+bx^2+cx+d; m≠0. What is the maximum quantity of local extreme values a given cubic function can have? a. 2 b. 1 c. 0 d. 3 Is it (a)?? 2. Let f(x)=xln(x). The minimum value attained by f is a) there ...
December 6, 2014 by Darcy

Calc
A Norman window is constructed by adjoining a semicircle to the top of a rectangular window as shown in the figure below. If the perimeter of the Norman window is 24 ft, find the dimensions that will allow the window to admit the most light.
November 4, 2015 by Coc

Calc
A particle starts at the point (−3, 0), moves along the x-axis to (3, 0), and then along the semicircle y = sqrt(9 − x^2) to the starting point. Use Green's Theorem to find the work done on this particle by the force field F(x, y) = <2x, x^3 + 3xy^2> .
November 8, 2016 by Taylor

AP Calc. AB
Create two different functions for which the left-hand limit at zero is 0 and for which the right hand limit at zero is 8
August 31, 2014 by Jacke

calc
Find the point on the graph of y = x2+1 that is closest to the point (3,1). d = √[(x-3)^2+(y-1)^2] d = √[(x-3)^2+(x^2+1-1)^2] d = √[(x-3)^2+(x^2)^2] d = [(x-3)^2+x^4]^1/2 d' = 1/2 [(x-3)^2+x^4)^1/2 [2(x-3)+4x^3] 0 = [1(2x-6+4x^2)] / [2√(x-3)^2+x^4] 0 = ...
March 17, 2016 by omar

Calculus
ok I don't understand how this was done inergral(y2 and y1) pgywdy = 1/2 pgw(y2^2 - Y1^2) ok it's been a while sense calc I rember you add one to the power of the term that was a dervitative and divide by that power hence (1/2)(y2^2 - Y1^2) but what happened to the y term ...
October 24, 2009 by Calculus

Calc
A plane flying horizontally at an altitude of 1 mi and a speed of 510 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 6 mi away from the station. (Round to the nearest whole number.)
November 8, 2009 by Peter

PRE CALC
Use matrices to solve the system. (If the system has infinitely many solutions, express your answer in terms of c, where x = x(c), y = y(c), and z = c. If the system has no solution, enter NONE for each answer.) 5x+2y-z=2 x-2y+2z= -1 3y+z= -17 ive done tons of these but this ...
June 7, 2011 by gabs

calc related rates
A street light is at the top of a 18 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 45 ft from the base of the pole?
October 24, 2011 by Bernardo

college calc
Give a formula for the function illustrated using a vertical shift of an exponential function. The two points marked on the graph are A=(−1,17) and B=(1,2). The red horizontal line is given by y=1, and is a horizontal asymptote of the function. What is the equation?
September 6, 2012 by harry

Calc Help
S'(t)= -147.78e^(-0.2t) S=7389 units when t=0 find the function that describes the number of daily sales t days after the end of the campaign Really stuck can someone help me to just find the function so I can head in the right track for the rest of the question
April 10, 2007 by Evan

Calc I
I need to find the equations of the tangent and normal line for x^2-y^2=16, at the point (-5,3). I have to show every detail for my work...then use graphing software to enter my equations, so can anyone help me showing all the details of the work so that I can figure it out?? ...
June 28, 2011 by Kejo, Help!!!!

Pre-Calc-Please check answer
1.Write 4+6+8+10 in sigma notation: I came up with sigma in the middle 3 on top j=0 on the bottom 2n+4 to the right of the signma sign 2. Find the 10th term of the sequence -1/5,-1/20,-1/80 this was a geometric sequence so I said a(subscript10) = -1/5*1/4^(10-1) =-1/5*(1/4)^9...
December 15, 2011 by Sandra

Pre-Calc-Please check answer
1.Write 4+6+8+10 in sigma notation: I came up with sigma in the middle 3 on top j=0 on the bottom 2n+4 to the right of the signma sign 2. Find the 10th term of the sequence -1/5,-1/20,-1/80 this was a geometric sequence so I said a(subscript10) = -1/5*1/4^(10-1) =-1/5*(1/4)^9...
December 15, 2011 by Sandra

Pre-Calc
Convert Q = 2e^8t to form Q = ab^t Round all calculated values to three decimal places Q= my answer I got 2(2.980.9579)^t I don't think this is correct. I took 2e^8t and tried solving for just e^8 then tried to convert... It turned out messy
October 3, 2014 by Tobi

Pre-Calc
I have two questions how do you solve cos x=sqrt2-cosx on the interval of [0,2pi) and how do you verify sin^2(theta)/1-cos(theta)=1+cos(theta) without negating it to equal 1?
November 14, 2010 by Daniel

calc
is the integral of 2x/(x^3-x) =-1/2ln(x+1)+1/2ln(x-1) I got this by doing this: (\=integral sign) 2\1/(x^2-1) 2\1/(x+1)(x-1) =A/(x+1)+B/(x-1) =Ax-A+Bx+B=1 Ax+Bx=0 B-A=1 B=1+A (1+A)x+Ax=0 x+Ax+Ax=0 1+AB=0 2A=-1 A=-1/2 B+1/2=1, B=1/2 etc.
January 27, 2008 by sarah

math 191 calc
((sqr 3)sin t)-((sqr 1)+(sin^2)*t)=0
April 12, 2010 by krista

calc-tangent line
find the equation to the line tangent to y=(x+3)^(1/3) at x=-3.
December 9, 2012 by daryl

AP CALC. AB
Let f(x)=3/x. If the rate of change of f at x = c is three times its rate of change at x = 2, then c = ?
October 3, 2014 by Rachel

Pre-Calc
How do I simplify (tan x/(1 + sec x))+((1 + sec x)/(tan x))?
October 8, 2015 by Anonymous

trig/pre -calc
hello, i don't quite understand how to do this type of problem: 1. find the exact value of sin (pi/3). even more confusing is 2. find the exact value of csc^-1 (1). i would appreciate any kind of help! thank you!
July 14, 2008 by brandy

multiple integration; calc 4
The electrical charge distribution on a circular plate of radius R meters is given by the function f(x,y) = kx (1- sin y) in coulomb/m^2. Integrate the function over the entire plate to find the total charge Q.
November 4, 2009 by john

pre calc
a salt shaker is sitting 4cm from the center of a lazy susan. phoebe small spins the lazy susan through an angle of 120. how do i set this up to find how many radians the shaker turned?
January 4, 2010 by jill

Pre-calc help!
A vector has x component -7.9 and y component 10.5 What is the direction of the vector to the nearest tenth of a degree? I tried doing tantheta=10.5/-7.9, however I keep getting a negative angle less than one degree which I hope is not right. Help!
July 31, 2010 by Anonymous

Calc
You need 50 pounds of two commodities costing $1.25 and$1.60 per pound. a) Verify that the total cost is y=1.25x + 1.60(50 - x), where x is the number of pounds of the less expensive commodity. b) Find the inverse function of the cost function.
December 6, 2010 by Erica

Applied Calc 2
he marginal cost function for a manufacturing company is given by dollars per box, where q is the number of boxes manufactured. If , find the total cost of manufacturing 10 boxes. Round to the nearest dollar.
October 12, 2011 by Anonymous

pre calc
use an appropriate half-angle formula to find the exact value ofthe expression. tan22.5 write the product as a sum sinxsin5x write the sum as a product sin2x-sin7x
July 12, 2012 by Anonymous

CALC
the productivity of a person at work (on a scale of 0-10) is modeled by a cosine function: 5cos (pie/2t) +5, where t is in hours. If the person starts work at t=0, being 8:00 am, at what times is the worker the least productive? a) 12pm B) 10 am and 2pm C) 11 am and 3 pm D) 10...
May 11, 2013 by samantha

pre-calc help
Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) 5 sin^2(x)- 21 sin(x)+ 4 =0
November 27, 2013 by Kate

Pre calculus
Find all roots f(x)- x^3+2x^2-15x+30 Factor f(x) completely. I can't find any roots and always get a remainder with 1, -1, 2, -2 What do you do if you cannot find a root?? Using Calc button on ti84 I got X= -5.619 Y=1.4E-11 Still can't find zeros...
April 5, 2014 by Steve

calc
Give the starting value a, the growth rate r, and the continuous growth rate k. Round the answer for r to two decimal places Q = 0.414(e^0.885)^t a = ? r = ?% k = ?% I found a to be 0.414 but when finding the percentage for r and k I got stuck.
October 3, 2014 by lenny

Calc.
The upper right-hand corner of a piece of paper, 12 in. by 8 in., as in the figure, is folded over to the bottom edge. How would you fold it so as to minimize the length of the fold? In other words, how would you choose x to minimize y?
March 30, 2015 by Jamie

pre-calc
A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying Sk+1 completely. Show your work. Sn: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + n(n + 1) = [n(n + 1)(n + 2)]/3 Sk: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + k(k + 1...
April 16, 2015 by Ciara

Pre Calc
Write a quartic function that has roots that are 3+5i, -4 and 7 and f(-3)=53. I have tried it a bunch of times and can't seem to get it. (x-3+5i)(x-3-5i)(x+4)(x-7) I multiplied them together x^4-9x^3+24x^2+66x-952 I was a little unsure what f(-3)=53 means. I thought I should ...
November 15, 2009 by Zach

Help plz on Calc
The portion of the ellipse x^2/9+y^2/4=1 with x greater than or equals to 0 is rotated about the y-axis to form a solid S. A hole of radius 1 is drilled through the center of S, along the y-axis. Find the exact volume of the part of S that remains. Show all steps. (Hint: use ...
May 6, 2015 by Linda

calc 1
For the limit lim x → 2 (x3 − 5x + 3) = 1 illustrate the definition by finding the largest possible values of δ that correspond to ε = 0.2 and ε = 0.1. (Round your answers to four decimal places.) i set it up like this 1-0.2</x^3-5x+3/<0.2+1 0....
February 4, 2016 by feather

Math (calc)
An open box with a square base is to have a volume of 12ft^3. Find the box dimensions that minimize the amount of material used. (round to two decimal places). it asks for the side length and the height. Please help asap due in a few hours. Thank you
February 8, 2017 by Kyle

Chemistry
A .682 g sample of an unknown weak monoprotic acid, HA, was dissolved in sufficient water to make 50mL of solution and was titrated with a .135 M NaOH solution. After the addition of 10.6mL of base, a pH of 5.65 was recorded. The equivalence point was reached after the ...
May 10, 2007 by Sara

Chemistry
NEWW- 0.10 M methylamine (CH3NH2) kb= 4.38e-4 calc the percent ionization so i did the ICE table to find that x=6.62e-3 (that was a typo the first time) and then i divided by .1 and then multiplied by 100. but i got the wrong answer whats did i do wrong? my answer was 6.62% ...
February 15, 2009 by Spencer

Pre-calc
A cardboard box with an open top and a square bottom is to have a volume of 45 ft3 . Use a table utility to determine the dimensions of the box to the nearest 0.1 foot that will minimize the amount of cardboard used to construct the box.
September 26, 2010 by Julie

Pre-Calc
Show that cos(pi - θ) = -cos θ for every angle θ
December 2, 2009 by Frankie

Calc
The graph of f ′(x) is continuous and increasing with an x-intercept at x = 0. Which of the following statements is false? The graph of f is always concave up. The graph of f has an inflection point at x = 0. The graph of f has a relative minimum at x = 0. The graph of the ...
December 15, 2016 by Muhammad Ahmed

calc
im so confused :( Willie Makit blows up a spherical balloon. He recalls that the volume is V=4/3Pi*r^3. In order for the radius to increase at 2cm/sec, how fast must Willie blow air into the balloon when the radius is 3 cm?
December 29, 2010 by me

Calc 2: Area under the curve
Find the area of the region enclosed between y=2sin(x and y=3cos(x) from x=0 to x=0.4pi Hint: Notice that this region consists of two parts. Notice: I'm getting 1.73762 but apparently that is wrong.
April 20, 2011 by sam

Calc I
I really need assistance!! I am to write an equation so that I can graph it. I do not understand how to graph OR write the equation for: x^2-y^2=16 for a tangent and normal line??? I keep coming up with the wrong answers...and the problem is I was not given any points of (x,y...
June 28, 2011 by Kejo

Applied Calc 2
the marginal cost function for a manufacturing company is given by dollars per box,c'(q)=q^2-10q+30 where q is the number of boxes manufactured. If , find the total cost of manufacturing 10 boxes. Round to the nearest dollar.
October 12, 2011 by Anonymous

calc 3
A woman walks due west on the deck of a ship at 4 mi/h. The ship is moving north at a speed of 15 mi/h. Find the speed and direction of the woman relative to the surface of the water. (Round your answers to one decimal place.)
September 1, 2012 by abby

Differentials (calc)
Solve the Poisson equation ∇^2u = sin(πx) for 0 ≤ x ≤ 1and 0 ≤ y ≤ 1 with boundary conditions u(x, 0) = x for 0 ≤ x ≤ 1/2, u(x, 0) = 1 − x for 1/2 ≤ x ≤ 1 and 0 everywhere else. Hint: break this up as into two ...
December 7, 2015 by Help please!

Quick calc question
A particle moves on a line away from its initial position so that after t hours it is s = 4t^2 + t miles from its initial position. Find the average velocity of the particle over the interval [1, 4]. Include units in your answer.
January 29, 2016 by Mel

calc
A car is heading northwest at 80 km/h and a truck is heading east at 60 km/h. Determine the velocity of the truck relative to the car.
May 5, 2010 by Anonymous

Calc
If f(x)= sec x, find f"(Pi/4) I am not sure how to take the 2nd derivative? f'(x)= sec x tan x f"(x)=??? Is it f"(x)= (sec x tan x)(sec^2x)??? Please Help!
October 24, 2010 by CMM

Calc
f(x)=x^3-3x^2-3x-8/(-3x^2-4x-6) Find the equation of the non-vertical asymptote. What is the smallest value of x at which f(x) intersects its non-vertical asymptote?
March 11, 2012 by Elli

math pre calc
solve sin theta = 1/2,90 degrees less than theta less than 180 degrees
January 14, 2013 by Rosagne

calc rates
the radius, r, of a circle is growing at a rate of 3 cm/s. Find the rate of change of the area of the circle when the radius is 5 cm
April 14, 2015 by Anonymous

pre calc
Find the values of b such that the system has one solution. x^2 + y^2 = 36 y= x+b and then they give me an answer box b=_________ (smaller value) b=_________ (larger value) i have absolutely no idea how to even begin this and what they are asking. could some please help and ...
June 7, 2011 by gabs

pre-calc please help!!
an open box with a volume of 1500cm cubed is to be constructed by taking a piece of cardboard of 20 cm by 40 cm, cutting squares of sides length x cm from each corner and folding up the sides. show that this can be done in two ways, and find exact dimensions of the box in each...
November 10, 2011 by steph

Stat Help Please
Yearly stock returns on India's Sensex Index are well described by a Normal model with a mean of 18.36% and a standard deviation of 14.65%. give the stock return cutoff for the middle 30% of all years. I used TI-83 Calc. for these. Can someone check them? Thank you! Q1=InvNorm...
March 10, 2013 by Taylor

Calc 2
A hemispherical plate with diameter 10 ft is submerged vertically 2 ft below the surface of the water. Express the hydrostatic force against one side of the plate as an integral and evaluate it. (Round your answer to the nearest whole number. Recall that the weight density of ...
March 24, 2016 by TayB

Calc
Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = x i + y j + z4 k S is the part of the cone z = sqrt(x2 + y2) ...
November 23, 2016 by Anon

Calc
Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = xy i + yz j + zx k S is the part of the paraboloid z = 2 − ...
November 23, 2016 by Anon

Calc
Evaluate the surface integral S F · dS for the given vector field F and the oriented surface S. In other words, find the flux of F across S. For closed surfaces, use the positive (outward) orientation. F(x, y, z) = xy i + yz j + zx k S is the part of the paraboloid z = 2 − ...
November 23, 2016 by Taylor

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