Sunday

April 20, 2014

April 20, 2014

Number of results: 113,508

**pre-calc**

oops! don't know why I put AP Calc, it's actually pre-calc....
*Friday, September 18, 2009 at 8:52pm by muffy*

**ap calc**

OOPS, I meant Pre-Calc not ap Calc sorry
*Saturday, October 10, 2009 at 2:45pm by MUFFY*

**MATHS**

A CONE WAS CONSTRACTED FROM PLASTIC, HAVE A HEIGHT OF 20cm (PART C). THE LID IS MADE UP OF HEMISPHERE HAVE RADIUS 0F 5cm (PART A) AND PYRAMID HAVE VOLUME OF 81,667cm³. THE LID FITS EXACTLY OVER THE CONE. A) CALC. THE VOL. OF PART A. B) CALC. THE VOL. OF PART C. C) CALC. THE ...
*Monday, August 9, 2010 at 8:16am by MTHOMBENI BAFANA*

**Studying for Calc**

I have a quiz on derivatives coming up and I really want to do well, but i'm not sure how to go about studying calc. i have no trouble studying for other subjects, but i'm doing poorly in calc and i need to make some changes in my study habits. any suggestions? i usually work ...
*Tuesday, October 7, 2008 at 4:22pm by Elizabeth*

**Calc**

Can someone help me with this calc problem? lim as x->0 (tan^3 (2x))/(x^3)
*Thursday, January 8, 2009 at 4:22am by Nick*

**Pre Calc**

Does this: sqrt 3x-4=(x-4)^2-3 Multiply out to: x^4-16x^3+90^2-211x+173 I then need to put it in the graphing calc and see what the roots are.
*Thursday, September 10, 2009 at 8:34pm by muffy*

**Pre-Calc/Calc**

Looks like C to me
*Wednesday, April 17, 2013 at 11:05am by Steve*

**calculus (limits)**

lim h>0 sqrt(1+h)-1/h not sure how to factor this; not allowed to use L'Hopital's Rule. (that isn't taught at my school until Calc II & I'm in Calc I).
*Saturday, January 22, 2011 at 2:09pm by John*

**physics**

an aeroplane is travelling horizontally at a speed of 80ms and drops a crate of emergency supplies.To avoid damage,the max vertical speed of the crate on landing is 20ms. a)calc d max height of the aeroplane when the crate is dropped b)calc d time taken for the crate to reach ...
*Thursday, January 19, 2012 at 2:59pm by Shanti*

**calc/physics**

350 J
*Monday, April 23, 2007 at 3:46pm by derek*

**Physics-calc**

What it P representing? Position?
*Saturday, September 12, 2009 at 1:31pm by Hannah*

**Physics**

Looks ok to me, I didn't do calc work.
*Tuesday, January 5, 2010 at 6:04pm by bobpursley*

**physics-non calc**

What is the question?
*Thursday, October 14, 2010 at 2:40pm by bobpursley*

**Calc or Pre calc**

I am having trouble doing this problem. I know how to do indefinate integrals, but I don't know how to do definate integrals. Can you show me how to do this. Evaluate 5 (x^3-2x)dx 2
*Wednesday, May 14, 2008 at 9:42pm by jennifer*

**help chem!:/**

a) Calc. PH of 0.010 M HF and 0.030 M KF e) calc. PH Zn(OH)2 in wAter
*Thursday, March 15, 2012 at 9:03pm by ALISON*

**Physics**

oh, thank you. I forgot to do that after my calc homework
*Sunday, October 30, 2011 at 7:14pm by Millie*

**Maths**

You can graph it, if you calc is a graphing calc. graph y=x^2+8x+5, where it crosses the x axis, is the solutions.
*Thursday, September 17, 2009 at 6:00pm by bobpursley*

**Pre-Calc**

I'm stuck on a pre-calc problem. I need to find y as a function of x, where the constant c is a positive number for In(y-1)+In(y+1)= -x+c express your question as ln[(y-1)(y+1)] = -x+c change that to exponential form e^(-x+c) = (y-1)(y+1) e^(-x+c) = y^2 - 1 y^2 = e^(-x+c) + 1 ...
*Wednesday, May 9, 2007 at 12:36pm by Sarah*

**physics**

calc the buoyant force on a 2 L helium balloon
*Thursday, December 6, 2012 at 5:00pm by chris*

**physics repost**

Thinking is correct. I didn't check calc work.
*Friday, April 4, 2008 at 12:08pm by bobpursley*

**physics calc based**

Had problems with the same question.
*Sunday, January 24, 2010 at 1:06pm by Dom *

**Physics with Calc**

35° = 0.611 radians, so .611r = 840
*Wednesday, July 17, 2013 at 1:01am by Steve*

**Calc and Physics**

Damon and Reiny. Thanks for your quick and thorough responses.
*Sunday, December 16, 2012 at 2:03am by Daryl*

**Math**

It is math, i take a pre-calc/calc class. sorry!
*Sunday, September 28, 2008 at 4:49pm by sam*

**physics repost**

I didnt check calc work, but thinking is correct.
*Friday, April 4, 2008 at 12:10pm by bobpursley*

**Pre-Calc**

Can you show me how to find the rectangular equation of r=2costheta + 3 sin theta All I need is an example to work off I was absent today from Pre-Calc and I have homework to do and no explanation with them-Please help with this one Thank you
*Monday, October 3, 2011 at 6:33pm by Leah*

**Math**

If (a,-3) is a point on the graph of y=x^2+4x, what is the value of a? so far i have -3=x^2+4x i can do the problem on my graphing calc but we can't use a graphing calc on the test so i need to know how to do it by hand. what do i do next?
*Wednesday, January 20, 2010 at 10:29pm by Karen*

**Calc based Physics**

E is approximately (Q/A)/e(o) so rearranging the formula we get AEe(o)=Q hence Q= 2.26e-5
*Saturday, February 11, 2012 at 12:39am by Ted*

**Physics**

first calc: hf=hi+vi*t-4.9t^2 second calc: hf=hi-4.9(t-2)^2 0=40+vi*t-4.9t^2 0=40-4.9(t-2)^2 well, two equations, two unknowns. start the with the second, solve for time, then put that into the first equation and solve for vi.
*Friday, November 12, 2010 at 1:31pm by bobpursley*

**Pre-calc/Calc**

Looks like D to me. sin u + sin v = 2 sin(½(u+v)) cos(½(u−v))
*Wednesday, April 17, 2013 at 11:12am by Steve*

**physics 2**

I would suggest on the other three, do them on paper, check the orders of magnitudes, then verify it on the calc.
*Saturday, January 30, 2010 at 9:25pm by bobpursley*

**physics**

Well it's a bit too late for that. I'm already in Calc 2 so is there anyway you can just explain this problem to me so I can finish my work.
*Sunday, August 15, 2010 at 9:35am by Skyler*

**last calc question, i promise!**

ALSO ALSO ALSO - on my first calc question (a couple posts down!), i added more to the problem that i forgot, so i need help with that too.
*Friday, February 20, 2009 at 12:26am by jane*

**Physics**

paste this into the google search window: 2*6.470*6.02E23 You need to learn how to be friends with your calc.
*Friday, November 20, 2009 at 6:35pm by bobpursley*

**C code**

Write a .c file named calc that: - Takes arguments from the command line - Solves a simple math problem - Returns the result as an exit status calc.c: //this is the function that gets called when the executable is run. int main(int argc, char * argv[]){ //I've given you the ...
*Wednesday, February 6, 2013 at 9:04pm by Nick*

**Calc**

By the way, I used vector components rather than laws of cosines as math people might do it. My thing is physics.
*Sunday, June 29, 2008 at 7:01pm by Damon*

**Physics**

it be easier to explain if i had my book, the answer may not be a 100% rgt because my calc is in my car, why u post this? need help with homework?
*Thursday, March 6, 2008 at 7:56am by A51AN*

**physics-non calc**

a hammer was released from rest vi=0m/s taking 1.12 seconds to fall 1 meter. How do you solve that
*Thursday, October 14, 2010 at 2:40pm by charles*

**physics-A person walks**

I dont understand??? how do you solve the answer in km. Do you do "(sign of 25)<in calc> multiplied by(3.8km)"?????
*Thursday, September 24, 2009 at 10:41pm by Anonymous*

**algebra 2**

take the antilog of each side: x=antilog 2.4 = 10^2.4 Put this in your calc, or in the google search window (google calc) 10^2.4
*Sunday, March 23, 2008 at 7:44pm by bobpursley*

**chemistry**

liquid heptane C7H16 is completely combusted to produce CO2 and H2O: C7H16 + 11O2 --> 7CO2 + 8H2O the heat combustion for one mole of C7H16 is -4.85*10^-3 CO2 heat of comb. = -393.5 H2O h of c= -285.8 a) calc. the vale of heat of cumbustion for C7H16 in kJ/mol a .0108 mol ...
*Wednesday, March 10, 2010 at 7:28pm by hilde*

**physics EM**

nvm found it elsewhere. turns out i had my calc in degrees instead of radians. dont you just hate when that happens.
*Monday, April 7, 2008 at 4:51pm by Spencer*

**physics calc based**

In the product F = qB (vectors), take q = 2 (neglecting the units of charge, q) and v = 2.0 i + 4.0 j + 6.0 k and F = 4.0 i + (-20 j) + 12 k . What then is B in unit-vector notation if Bx=By ?
*Sunday, January 24, 2010 at 1:06pm by hannah *

**Physics w/ Calc**

6.235/.0023=2710i 7.83/.0023=3404j = (2710)i-(3404)j
*Sunday, October 16, 2011 at 8:08pm by Anonymous*

**math**

ln x=44/12 x=e^(44/12) [put that in your calc, or in the google search window (google calc).
*Sunday, March 23, 2008 at 8:06pm by bobpursley*

**Physics, Calculus(alot of stuff together)= HELP!!!**

You have the integration right, I did not check the calc work. The boundry values apply to the density (2.7,9.3) and you applied them correctly.
*Sunday, September 16, 2007 at 7:12pm by bobpursley*

**Physics with Calc**

A point charge of 1.8uC (microcoulumbs) is at the center of a Gaussian cube 55 cm on edge. What is the net electric flux through the surface?
*Saturday, February 5, 2011 at 12:35pm by Robert*

**Physics**

The numbers are correct, but the words are not. The first thing you did was mgh, not 1/2 m v^2 So yes, it is mgh+1/2 mv^2 I didn't check calc work.
*Monday, December 7, 2009 at 5:20pm by bobpursley*

**College Physics II (Calc-Based)**

Okay so my equation was set up correctly and should read.. (1.00x10^-9)(1.90m^3)/(8.314x308.15) Correct? So my R would be 2.67724^-12?
*Thursday, August 29, 2013 at 4:47pm by Andrew*

**Calc or Pre calc**

To get the definite integral subtract the value of the indefinite integral at x=2 from the value at x=5. The arbitrary cnstant c will cancel out. The indefinite integral is x^4/4 - x^2 + C. The definite integral is (625/4) - 25 -[16/4 - 4].
*Wednesday, May 14, 2008 at 9:42pm by drwls*

**geomtrey**

Handy trig calculators can be found at http://www.rapidtables.com/calc/math
*Friday, February 15, 2013 at 2:12pm by Steve*

**Math for liberal arts**

a handy calculator that works in multiple bases can be found at http://ostermiller.org/calc/calculator.html
*Thursday, August 30, 2012 at 4:42pm by Steve*

**Physics 1 (Calc Based)**

angular position= 1/2 acceleraiton*time^2+ wi*time + initial position
*Wednesday, March 31, 2010 at 12:59pm by bobpursley*

**Physics**

A body covers a distance of 25m in the 5th sec of its motion and 40m in the 8th sec.of its motion. Calc.initial velocity and acceleration.
*Wednesday, July 4, 2012 at 12:43pm by Mohan *

**Calc-Based Physics**

You are lost in the process of resolving a vector into components, then the addition of those components. Here is what I suggest. Go to the nearest college bookstore, or Barnes Noble, or such, and get the study guide Schaum's Outline Series: College Physics. There are a a ...
*Thursday, October 11, 2007 at 10:30pm by bobpursley*

**Calc-Based Physics**

You are lost in the process of resolving a vector into components, then the addition of those components. Here is what I suggest. Go to the nearest college bookstore, or Barnes Noble, or such, and get the study guide Schaum's Outline Series: College Physics. There are a a ...
*Thursday, October 11, 2007 at 10:30pm by bobpursley*

**physics**

Ok. If you used your calc to get 23E-9 from 9E9*1.6E-19*1.6E-19/(1E-10)^2 then you are right. I dont know where you got the distance apart from, that of course can change the answer.
*Saturday, March 29, 2008 at 9:27pm by bobpursley*

**physics**

Deceleration: 16 = 20 + Ta 16 - 20 = 10a a = -0.4 m/s2 Braking force = 300 X 0.4 = -120 N Please check the above calc and give comments!
*Sunday, November 21, 2010 at 5:17pm by Raymond*

**geometry**

first off, trig functions are just numbers. they have no units (such as meters). Maybe those little m's are meant to be ° symbols. If sin(x) = 8/32, x = 14.48° did you visit the trig site I provided? http://www.rapidtables.com/calc/math
*Friday, February 15, 2013 at 3:57pm by Steve*

**Calc**

Profit=p(-p^2+33p+9)-9(-p^2+33p+9)+100 How do I simplify this so I can take the derivative For Further Reading * Calc - Michael, Sunday, November 25, 2007 at 4:17pm Profit=p(-p^2+33p+9)-9(-p^2+33p+9)+100 p(-p^2 + 33p + 9) Just distribute the p in. -9(-p^2 + 33p + 9) Find the ...
*Sunday, November 25, 2007 at 8:20pm by Ben*

**Pre-Calc/Calc**

Which set of parametric equations corresponds to this rectangular equation? y=2x-(x^2 / 10) A. x=4t, y=4t-(t^2 /10) B. x=2t, y=8t-(4t^2/10) C. x=2t, y=4t-(4t^2/10) D. x=.5t, y=2t-(t^2/10) E. x=t, y=t-(t^2/10)
*Wednesday, April 17, 2013 at 11:05am by Chris Math Hw Help*

**Calc-Based Physics**

Break each vector into two components. Not having a diagram, I cant help. But I suspect one component should be aimed along whereever the angles are being measured from, and the other angle perpendicular to that. Then add like components.
*Thursday, October 11, 2007 at 7:40pm by bobpursley*

**Solving system of linear equations**

http://math.la.asu.edu/~kolossa/119/calc.html
*Sunday, February 22, 2009 at 5:55pm by bobpursley*

**physics**

R=.28*165 (calc this) plug into following equation and that will give you W =I^2*R =1030^2*R b. P(loss)= IV =1030(720000) <---changed into V from kv =741400000 divide answer from part a by this number to get the percentage
*Friday, September 17, 2010 at 10:52pm by lynette*

**College Physics II (Calc-Based)**

the number of molucles is n*avagradro's number R? Pressure is Pa, volume in m^3, T i Kelvins... R has to be in Pa-M^3/mole.kelvins or 8.314
*Thursday, August 29, 2013 at 4:47pm by bobpursley*

**Calc**

I mean feet, not meters. Yes, acceleration is crazy. It should increase during the propulsion phase and it should be g, 32 ft/s^2 down, after the engine cuts out. I assume this is math class and certainly not a physics class :)
*Friday, February 22, 2008 at 4:06pm by Damon*

**calc**

Use L’Hopital’s rule to find the limit of this sequence (n^100)/(e^n) ...If you do L'Hop. Rule it would take forever, right? You would always get an (e^n) at the bottom and will have to use the L'Hop. rule 100 times to find the limit...100*n^99, 9900n^98, and etc. Is there a ...
*Wednesday, February 1, 2012 at 4:55pm by lola*

**Calculus II**

http://marauder.millersville.edu/~bikenaga/calc/parts/partspf.html
*Tuesday, February 24, 2009 at 2:43pm by bobpursley*

**Physics-I forgot the magnetic field calc**

I forgot that the earth's magnetic field is 50 micro Tesla
*Saturday, April 23, 2011 at 5:04pm by Russ*

**Geometry**

Handy trig calculators can be found at http://www.rapidtables.com/calc/math just plug in your value for 22 degrees, get the sine, and then multiply by 11. Hard to believe that someone with access to a computer can't figure out how to get some calculations made. Heck, google ...
*Friday, February 15, 2013 at 11:34am by Steve*

**physics calc based**

Don't you mean the vector cross product F = q V x B ? You need to write an equation for the three components of B (with Bx = By) by rewriting the above equation for the individual components. Then solve for the Bz and Bx=By components
*Sunday, January 24, 2010 at 1:06pm by drwls*

**geometry**

or http://www.rapidtables.com/calc/math/Arctan_Calculator.htm
*Thursday, January 12, 2012 at 1:03pm by Damon*

**Calc**

A student is in a 20 week calc class. The function f(t)=50-50e^0.2t f(t) measures the students problem speed in t weeks -how many problems per hour can a student solve at the beginning of the course - how many problems per hour can a student solve halfway through the course -...
*Friday, July 20, 2012 at 2:07pm by Marshall*

**Math**

mosey on over to http://www.rapidtables.com/calc/math/Arctan_Calculator.htm
*Thursday, February 28, 2013 at 11:32pm by Steve*

**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?
*Thursday, December 24, 2009 at 2:21pm by Sean*

**Calc**

how do I do this?
*Sunday, December 9, 2007 at 6:41pm by Britt*

**Calc**

Thank you.
*Thursday, September 10, 2009 at 5:58pm by Katie*

**Calc**

Thank you!
*Monday, October 26, 2009 at 3:10am by Patrick*

**Calc**

Thank you!
*Sunday, November 8, 2009 at 7:47pm by Lee*

**calc**

1 - 1/x
*Sunday, November 22, 2009 at 12:31pm by Reiny*

**Calc :)**

You are welcome!
*Wednesday, February 24, 2010 at 5:52pm by MathMate*

**CALC :)**

You're welcome!
*Saturday, May 29, 2010 at 8:34pm by MathMate*

**calc**

(e^x + e^-x)/2=1
*Sunday, October 17, 2010 at 10:41pm by BOB*

**calc**

(e^x)e^x+1)/(e^x-1)=8
*Monday, October 18, 2010 at 10:48pm by Vinny*

**Calc**

0 and 1
*Wednesday, December 2, 2009 at 1:10pm by derek*

**Calc 2**

y=... or r=...?
*Monday, April 18, 2011 at 1:24pm by Mgraph*

**Calc 3**

with .... ?
*Wednesday, July 13, 2011 at 7:45pm by Reiny*

**Calc**

yes
*Wednesday, October 12, 2011 at 7:10pm by in the same class*

**calc**

what is h?
*Wednesday, December 28, 2011 at 5:43pm by Eliza *

**Calc**

Thanks!
*Friday, January 20, 2012 at 7:34pm by Kris*

**calc**

thanks
*Thursday, March 29, 2012 at 8:40am by naseba*

**calc**

thanks!
*Sunday, July 15, 2012 at 2:04pm by Anonymous*

**Calc**

Thanks!
*Wednesday, July 18, 2012 at 3:11am by Jim *

**Calc 3**

thank you!!!!!!
*Saturday, September 22, 2012 at 5:04pm by Becky*

**Calc**

(B)
*Friday, April 26, 2013 at 11:59am by Steve*

**Calc.**

a
*Tuesday, March 2, 2010 at 9:40pm by Alex*

**Calc**

hi
*Sunday, November 8, 2009 at 7:47pm by Anonymous*

**Calc pt2**

Original question: Posted by Lost One on Tuesday, March 5, 2013 at 12:04pm. Let f(x) = (2/3)x^3 - 2x + 1 with a restricted domain of [1,infinity]. What is the value of (f-1)'(x) when x = 13? •Calc - Steve, Tuesday, March 5, 2013 at 12:58pm since x = f^-1(y) and dx/dy = 1/y' f...
*Tuesday, March 5, 2013 at 2:25pm by Lost One*

**physics**

well, the first step to the second is wrong, there is no way 260+21N became 54726 Newtons. I dont follow your last step (didn't punch it in the calc), but you have to take sqrt of the sum of forces, I dont see where you did that. Resultant= sqrt(xforeces + y forces)
*Thursday, October 1, 2009 at 5:56pm by bobpursley*

**chemistry**

pi = MRT Convert ug vitamin B12 to mols mols = grams/molar mass. Then mol/L = M and substitute into the first equation and solve for pi in atm. Here is a site to convert atm to H2O. http://www.aqua-calc.com/convert/pressure/atmosphere
*Monday, February 25, 2013 at 2:32am by DrBob222*

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