Wednesday

April 16, 2014

April 16, 2014

Number of results: 218,251

**Math**

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

**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*

**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**

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*

**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**

oh! ok! thank you! so then m=6 and the equation of the tangent line would be y=6x Thank you!
*Tuesday, September 14, 2010 at 2:41pm by calc*

**geomtrey**

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

**Pre-Calc/Calc**

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

**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*

**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*

**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*

**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*

**Math**

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

**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*

**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*

**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*

**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*

**Solving system of linear equations**

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

**geometry**

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

**Math**

I'm currently taking IBMS and it has elements of several types of math classes (calculus, statistics, algebra, etc.). It is the "lowest" level IB Math class one can take, but not necessarily for students who have a low background in math. I know one student who dropped AP Calc...
*Tuesday, August 20, 2013 at 2:02am by Katherine*

**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*

**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*

**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*

**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*

**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*

**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*

**PreCalculas**

I found this nice applet to graph polar functions http://www.ies.co.jp/math/java/calc/sg_kyok/sg_kyok.html I set r(t) = cos(5*t/2) and set the range form -6.28 to 6.28 (appr. -2π to 2π) and the zoomed in a bit
*Thursday, February 2, 2012 at 6:46pm by Reiny*

**math calc**

thank you
*Friday, March 27, 2009 at 3:06pm by Manny*

**math calc**

hi
*Friday, March 27, 2009 at 3:06pm by Anonymous*

**Math (Calc 1)**

bm
*Saturday, November 20, 2010 at 10:34pm by ,m*

**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*

**Math (calc)**

yes that's what I thought. Thank you!
*Saturday, November 7, 2009 at 1:03pm by Elizabeth*

**Pre-Calc/Math**

Thank You! :D
*Monday, April 30, 2012 at 12:23am by Yadira*

**Math, Pre Calc**

Thanks!
*Wednesday, September 5, 2012 at 3:21pm by Alexis*

**Math, Calc**

since x=t+2, t=x-2 y = t^2+3 = (x-2)^2 + 3 So, (E)
*Thursday, April 25, 2013 at 11:15am by Steve*

**Pre Calc**

I don't see how to do this without a calculator sin ( - pi/12) csc ( (25 pi)/12)
*Friday, November 13, 2009 at 5:52pm by Pre Calc*

**Pre Calc**

I'm obviously suppose to get - sin 2 pi ok - sin ( (24 pi)/12) I don't see how to get that though
*Friday, November 13, 2009 at 5:52pm by Pre Calc*

**calc**

Find an equation of the tangent line to the curve at the given point. y = 6 x sin x P= (pi/2 , 3pi) i know the slope of a tangent line is equal to the first derivative. For that I got 6xcosx + 6sinx but idk how to put that into the y-y1=m(x-x1) formula to make the equation
*Tuesday, September 14, 2010 at 2:41pm by calc*

**Math (Calc)**

certainly, of course, lol
*Sunday, December 9, 2007 at 5:31pm by Reiny*

**math calc.**

Differentiate g(x)=x^(2^1/2)+(x^3/2^1/2)+e^(2^1/2)+(2e^x)^1/2
*Wednesday, July 9, 2008 at 1:07am by nam*

**math-calc**

I don't understand how to get the min??
*Friday, March 13, 2009 at 9:03pm by mkcolema*

**math-calc**

nevermind i got it! thanks!
*Friday, March 13, 2009 at 9:03pm by mkcolema*

**Math Pre-Calc.**

Thankyou :)
*Sunday, August 23, 2009 at 3:02pm by Soraya*

**Calc**

oh! I was trying to make it harder than it was! thank you!
*Wednesday, October 20, 2010 at 5:27pm by Math*

**Math- Calc**

53.6719
*Friday, October 29, 2010 at 6:56pm by asdgad*

**math/calc**

find y'' if x^4+y^4=16
*Wednesday, February 15, 2012 at 11:04am by angie*

**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*

**math (calc 2)**

x+y=3 x-4=-(y-l)^2 rotate about the x-axis
*Monday, February 1, 2010 at 12:05am by sally*

**Math AP Calc**

Thank you so much Reiny!
*Sunday, August 29, 2010 at 2:10pm by Leanna*

**Math-Calc AB**

e^(-x/2) + xe^(-x/2) = 0 solve for x
*Thursday, October 14, 2010 at 4:01pm by Michelle*

**math-calc**

find third derivate f(x)=x/x+1
*Sunday, February 27, 2011 at 2:04pm by shakira*

**math-calc**

As typed, without parenthesis f(x) = x/x + 1 f' = 0
*Sunday, February 27, 2011 at 2:04pm by Helper*

**Pre-Calc/Math**

cos2x = 2cos^2(x) - 1 = 2(4/9)-1 = 8/9-1 = -1/9
*Monday, April 30, 2012 at 12:22am by Steve*

**math calc**

integral of : x^2 square root of (x-1)
*Wednesday, May 16, 2012 at 6:19pm by riss*

**Help math calc**

F = P(1+rt) where t is years and r is rate
*Thursday, February 21, 2013 at 9:48am by Steve*

**math pre calc**

solve for X marticies 2 0 5 4 -1 3 =2 6 x -7
*Thursday, April 25, 2013 at 8:24am by JT*

**Math (Calc)**

I only get 4 answers though. I'm supposed to get 8
*Sunday, December 9, 2007 at 4:33pm by Bryan*

**Math-statistics**

For a i used my calc. The 1-Var Stats
*Friday, December 12, 2008 at 10:00pm by Jodine*

**Math Calc**

Find the linear approximation of f(x)=ln x at x=1 where L(x)=
*Friday, March 27, 2009 at 3:04pm by Manny*

**math 191- calc**

sect + tan t= (sqr 3)
*Monday, April 12, 2010 at 6:34pm by krista*

**math-calc**

derivate of 2sin(x)-cos(x)-cot(x)
*Sunday, February 27, 2011 at 2:03pm by shakira*

**math**

-312*pi/180 put it in your calc
*Sunday, February 19, 2012 at 4:41pm by jim*

**math pre calc**

solve for x. 8^6+3x=16
*Sunday, March 25, 2012 at 8:52pm by danielle*

**MATH, Calc**

e^0.08 = 1.0832 so, from t=0 to t=1, P grows by 8.32%
*Thursday, September 13, 2012 at 10:16pm by Steve*

**Differential Calc (Math)**

WOW! Thank you so much! You rock!
*Thursday, December 13, 2012 at 3:07pm by Joey*

**Math**

Please someone help with my pre calc question!
*Monday, February 11, 2013 at 9:20pm by Anthony *

**Math (Calc)**

ya sorry, I got it confused. Thanks for all the help.
*Sunday, December 9, 2007 at 4:33pm by Bryan*

**Math (Calc)**

Ya sorry it was sin (pi/24)
*Sunday, December 9, 2007 at 5:31pm by Bryan*

**Math Pre-Calc.**

just one intersection is possible as well
*Sunday, August 23, 2009 at 3:02pm by oneirocritic*

**Math Pre-Calc.**

how do u figures out the doamin and range???
*Sunday, August 23, 2009 at 2:52pm by Soraya*

**math/calc**

thank you and yes i had atypo i apologized it was y = x^2e^(-3x
*Wednesday, March 31, 2010 at 9:22am by miley*

**math calc!**

find the volume of solid bound by planes x=0 y=0 z=0 and x+y+z=7
*Sunday, May 9, 2010 at 5:15pm by college*

**calc**

hi im totally blanking how do i find the antiderivative of cos(0.5(x^2))? thanks!
*Monday, March 28, 2011 at 8:50am by math*

**math pre calc**

well you minus 8^6 to the other side and solve for x
*Sunday, March 25, 2012 at 8:52pm by Brandon*

**MATH, Calc**

P=0.3e^0.08t find the rate of growth.
*Thursday, September 13, 2012 at 10:16pm by Riley*

**Math ( Pre Calc) - correction**

oops my bad (x-1)(3x+2)(x^2+2)
*Tuesday, October 2, 2012 at 1:06pm by Steve*

**math/calc**

gotta find the first and second derivative of f(x)=x^2/(x-1) thanks for help!
*Thursday, October 18, 2012 at 10:25pm by anon*

**math/calc**

quotient rule: f' = ((2x)(x-1) - (x^2)(1))/(x-1)^2 = x(x-2)/(x-1)^2 f'' = 2/(x-1)^3 Or, divide first: f = x^2/(x-1) = x+1 + 1/(x-1) f' = 1 - 1/(x-1)^2 f'' = 2/(x-1)^3
*Thursday, October 18, 2012 at 10:25pm by Steve*

**Pre-calc/Calc**

Which expression is equivalent to sin(3x) + sin x? A. 2cos(2x)sin x B. 2sin(2x)sin x C. -2sin(2x)cos x D. 2sin(2x)cos x E. -2cos(2x)sin x
*Wednesday, April 17, 2013 at 11:12am by Chris Math Hw Help*

**math-calc**

If f(x) is approximated by the tangent line y(x) near x = 0, then that means that: f(0) = y(0) f'(0) = y'(0)
*Sunday, October 19, 2008 at 10:07pm by Count Iblis*

**math-calc**

f(x)=(5x-4)e^2x How do you find the one critical number??
*Friday, March 13, 2009 at 8:56pm by mkcolema*

**Math**

No it is e^(2x)+10e^(x)-75=0. It has something to do with pre-calc if that helps.
*Sunday, December 20, 2009 at 7:54pm by Anonymous*

**Calc**

lim as x approaches negative infintiy (x^2+x^3) I just dont know where to start
*Wednesday, October 20, 2010 at 5:27pm by Math*

**Math- Calc**

it puts the lotion on its skin or else it gets the hose again
*Friday, October 29, 2010 at 6:56pm by jesus*

**Pre Calc , Math**

Find the 6 Trig ratios of -7Pie/3
*Sunday, January 2, 2011 at 9:50pm by Joe Daddy*

**Math Calc**

Find the tangent line to the curve (y-x)^2= 2y+4 at the point (2,6)
*Thursday, August 18, 2011 at 7:50pm by Lalee*

**Pre-Calc/Math**

(0,0),(9,-7). x = 0, Y = -7. r^2 = X^2 + Y^2, r^2 = 0 + (-7)^2 = 49, r = 7. secA = r/X = 7/0 = Infinite. cotA = X/Y = 0 / -7 = 0. sinA = Y/r = -7 / 7 = -1.
*Tuesday, February 7, 2012 at 12:03am by Henry*

**Pre-Calc/Math**

Prove the identit: cosxcotx+sinx=cscx
*Monday, April 30, 2012 at 12:23am by Yadira*

**Pre-Calc/Math**

Prove Identity: (1-cos2x/ tan x) = sin2x
*Monday, May 14, 2012 at 7:15pm by Yadira*

**Differential Calc (Math)**

the Taylor series for e^u = 1 + 1/1! u + 1/2! u^2 + 1/3! u^3 + ... the definition of e is lim(u->0) (1+u)^1/u
*Thursday, December 13, 2012 at 3:07pm by Steve*

**economic math**

used graphing calc. clear as day
*Friday, January 17, 2014 at 2:35pm by monroe unstuck*

**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*

**Math (Pre-Calc)**

By the way when is says the interval, it's [0, 2pi] The p's should be pi's
*Friday, November 30, 2007 at 4:27pm by Bryan*

**Math: Pre-Calc**

I don't quite follow the last three lines. Could you please explain?
*Friday, November 6, 2009 at 12:36pm by Angelina*

**math**

divide 4 by 14 on a calc and u get 0.214285714 round to nearest fourth: 0.2143
*Wednesday, February 9, 2011 at 3:53pm by Nadir*

**Math**

Starting from the formula cos^2(x)+ sin^2(x)=1, prove that tan^2(x)+1 =sec^2(x).
*Thursday, September 22, 2011 at 10:34pm by Calc Student *

**Math**

(1/25)^1/2 i know the answer is 0.02 but how do you find it in a fraction without using a calc?
*Sunday, September 25, 2011 at 4:13pm by Allie*

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