Wednesday

April 23, 2014

April 23, 2014

Number of results: 89,825

**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**

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

**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*

**Pre Calc**

please h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 0 2 2 5 7 6 7
*Monday, December 7, 2009 at 6:27pm by Jo*

**pre-calc help please !**

thank you !!!!
*Sunday, December 2, 2012 at 9:53pm by Monica*

**pre-calc help please !**

welcome!
*Sunday, December 2, 2012 at 9:53pm by Reiny*

**pre calc**

please help!!!!
*Friday, September 13, 2013 at 6:05pm by charlotte*

**Pre Calc**

Simplify (n+1)!/(n-1)! Help please?
*Sunday, March 15, 2009 at 9:24pm by MW*

**Pre-Calc-Please check**

Yes!
*Tuesday, January 10, 2012 at 11:09am by drwls*

**Pre-Calc Help!!!!!!!!!!!!!!!!1**

can someone help me please????
*Sunday, April 15, 2012 at 9:48pm by John*

**Pre-Calculus**

Can you show me how to find the rectangular equation: r=2cos(theta) + 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 7:49pm by Leah*

**Pre calc**

Please show your attempt.
*Wednesday, May 14, 2008 at 6:51pm by Damon*

**Pre-Calc**

Can someone please answer this?
*Saturday, September 10, 2011 at 2:20pm by Anonymous*

**Pre-Calc-please check**

Thank you for checking
*Wednesday, January 4, 2012 at 12:54pm by Bethany*

**Help please!! For pre-calc**

Logx16=-2 how do you solve this?
*Tuesday, December 10, 2013 at 8:47pm by Anonymous *

**Pre Calc**

Please disregard, I found your answer.
*Thursday, September 10, 2009 at 8:34pm by muffy*

**PRE-CALC**

Can you please explain the x-2 and x+1, I'm not sure how you got that.
*Friday, October 16, 2009 at 10:01pm by Muffy*

**Pre calc**

Please finish y+7=6/7x-30/7
*Friday, January 25, 2013 at 12:54am by Joe*

**Math**

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

**Help please!! For pre-calc**

The answer I think is wrong
*Tuesday, December 10, 2013 at 8:47pm by Anonymous *

**pre calc**

I'm not quite sure what you mean. Can you please elaborate
*Saturday, October 24, 2009 at 3:51pm by Muffy*

**Pre Calc (please explain)**

How do you know that it is supposed to have an a in front?
*Sunday, November 15, 2009 at 9:30pm by Bob Dylan*

**pre-calc**

Do you know how to do any of the requested items? Please post what you can do for checking.
*Saturday, January 22, 2011 at 7:00pm by MathMate*

**Pre-Calc**

cosx/(1+secx) Please help me simplify this expression.
*Thursday, November 1, 2012 at 6:34pm by Gaby*

**Pre-Calc - incomplete**

no diagram. more text, please.
*Tuesday, October 1, 2013 at 12:42am by Steve*

**Pre-Calc**

Can you someone please help me with this question??? Simplify cot(x + pi)
*Sunday, May 22, 2011 at 4:16pm by Emily*

**pre-calc **

cos x+sec x=2 if you could please show all work
*Tuesday, November 20, 2012 at 3:15pm by Haley*

**Help please!! For pre-calc**

A negative cant cHange to a positive without doing anything
*Tuesday, December 10, 2013 at 8:47pm by Anonymous *

**ap calc**

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

**Pre-Calc**

Determine the solution. x^2=|x|algebraically I have no idea how to proceed with this. Can you please help?
*Saturday, September 26, 2009 at 12:01pm by MUFFY*

**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*

**pre calc**

Simplify- (x^2+2x)/(x^2-x) *I got x(x+2) for the numerator and I couldn't get the denominator, but it was wrong help please
*Tuesday, February 23, 2010 at 11:21pm by Karissa*

**Pre-calc**

Could you possibly elabarate a little on to how you got those numbers please :) thanks you!
*Monday, April 9, 2012 at 1:42pm by Maya*

**pre-calc HELP PLEASE**

solve using identities for all angles (dont use multiple angle method)show work please cuz i am so confused. 2sin2x-3sinx=0
*Tuesday, April 24, 2012 at 7:01pm by Kimberly*

**PRE CALC **

please help me solve this partial-fraction decomposition! 12x-57/(x-3)(x-10)
*Sunday, May 15, 2011 at 11:32pm by esora*

**Pre-Calc-Please check my answer**

I believe you are trying to factor the polynomial. so x^2 -4x+3 (x-1)(x-3) =0 x= 1,3
*Tuesday, September 6, 2011 at 8:12pm by ALISON*

**Pre-Calc**

Please help me with this problem-I'm stuck (x-2)/(x+2) = (x+10)/x I'm not even sure where to start-Thanks for any help you can provide
*Sunday, September 18, 2011 at 1:34pm by Josh*

**Pre-Calc-Please check answer**

Thank you-I see where I made the mistake Funny!! I like that!
*Thursday, December 15, 2011 at 8:44pm by Sandra*

**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*

**PRE-CALC still stuck**

Pre-cal? V=kT V=kr^2 I=V(1/R)
*Sunday, October 18, 2009 at 5:55pm by bobpursley*

**pre calc**

A pre-calculus answer is -0.64 + kπ radians, where k∈ℤ.
*Monday, January 25, 2010 at 8:11pm by MathMate*

**Pre-Calc**

pre caculates is the ansewer to above is 25545872
*Saturday, October 3, 2009 at 11:19am by Anonymous*

**Pre Calc**

In triangle ABC, b=14, c=15, and cos a= 3/5. Find a)side a b) Sin B Help please?
*Monday, April 13, 2009 at 9:16pm by MW*

**Pre-Calc-Please check my answer**

You did this about the most difficult way. Consider: x^2-4x-3=0 (x-1)(x-3)=0 x= 1, or 3
*Tuesday, September 6, 2011 at 8:12pm by bobpursley*

**Math, Pre Calc**

Given that (+-2) and i are the roots of a 4th degree polynomical, find the equation. Please help! Thank you:)
*Wednesday, September 5, 2012 at 3:21pm by Nikki*

**Pre-Calc-please check**

please delete last two lines-that was just my work I calculated- it shouldn't e there actual answer is 243a^5-810a^4b + 1080a^3b^2 -720a^2 b^3 + 240ab^4-32b^5
*Wednesday, January 4, 2012 at 12:54pm by Bethany*

**Pre-Calc**

Can someone show me how to do this please. I am stuck. find a number x such that e^2x – 12e^x =13
*Thursday, December 9, 2010 at 1:16am by Roy*

**Pre-Calc-Please check**

Number three should read p/q = not p/a Thank you for letting me know the first two are correct
*Monday, January 9, 2012 at 8:23pm by Julia*

**Pre Calc**

lim x approaches 0 [1/x *((1/(sqrt(1+x))-1)] It will be easier to understand if you write it out.. How would I algebraically do this? (The answer is -1/2) Help please?
*Wednesday, March 18, 2009 at 8:32pm by MW*

**Pre-Calc-Please check my answer**

x^2 -4x + 3 = 0 factor (x-3)(x-1) = 0 x = 3 or x = 1 or complete the square as you tried x^2 -4 x = -3 note sign change of 3 x^2 - 4 x + 4 = -3 +4 = 1 (x-2)^2 = 1 x = 2 +/- 1 x = 1 or x = 3
*Tuesday, September 6, 2011 at 8:12pm by Damon*

**Calculus grade 12 exam review PLEASE HELP ASAP !!**

THANK U! to be honest i really hate calculus and i didnt really pay attention in the course. im going into kin (of arts) so its a pre-req but i wont be taking any math or calc courses in university, i dont know why its a pre req then. but thanks u so much
*Thursday, June 21, 2012 at 3:52pm by Sarah Berkley Adamson*

**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*

**pre-calc**

(1+tan x)^2= 2 tan x+2 please show all work
*Tuesday, November 20, 2012 at 3:20pm by Haley*

**Pre-Calc-Please check answer**

Should be sigma sign not signma sign
*Thursday, December 15, 2011 at 8:44pm by Sandra *

**Pre-Calc-Please check my answer**

I did do it the long way-you way is much simpler Thank you all
*Tuesday, September 6, 2011 at 8:12pm by Sheila*

**Pre Calc**

sigh...sorry I'm so lost...we are not actually going over this know in school, this is just a practice problem, so yeah if you could please explain again? thnaks
*Thursday, December 17, 2009 at 7:51pm by jake*

**pre calc**

since you are asking about trig functions, it would be logical to assume that you can find the definitions. csc A = 1/sinA if that's difficult, please review your algebra I.
*Thursday, January 12, 2012 at 8:02pm by Steve*

**pre-calc helpppp**

Evaluate the expression under the given conditions (show steps please) sin(è/2); tan è = − 5 / 12 , è in Quadrant IV
*Saturday, April 21, 2012 at 7:42pm by John*

**PRE CALC PLEASE HELP!!!!!!!!**

find the solutions of the equation that are in the interval [0,2pi) 2-cos^2x=4sin^2(1/2x)
*Thursday, November 4, 2010 at 11:15pm by Hayli*

**Pre-Calc**

I am seeking help with this problem Please...Thank you! Find the point on the line y=x+3 in the xy-plane that is closest to the point (3, 2)
*Tuesday, December 7, 2010 at 8:55pm by Roy*

**Math**

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

**Pre-Calc-reiny please recheck**

Thank you for showing me the second one-just one question-is #1 correct the way I did it? Thank you
*Sunday, September 18, 2011 at 5:03pm by Elllie*

**Pre-Calc-Please check**

1. is correct 2. is correct
*Monday, January 9, 2012 at 8:23pm by Ben*

**Pre-Calc-Please check my answer**

Please help-I'm stuck really bad Thank you for any help you can provide What are the roots of the equation x^2 -4x + 3 = 0 x^2 - 4x = 3 x^2 +2(-2)x + -2^2 = -3 = -2^2 x^2 + -4x + 4 = 1 (x + -2)^2 = 1 qrt (x+-2)^2 = sqrt 1 x+-2 = plus or minus 1 therefore x=1 x=3 roots are 1 ...
*Tuesday, September 6, 2011 at 8:12pm by Sheila*

**pre calc**

write the form of the partial decomposition for the given rational expression. Don't solve for constants: 8x+10/x^2+7x-18 please show work!
*Thursday, May 12, 2011 at 2:22am by esora*

**Pre-Calc-Please check my answer**

Alison, I am sure Sheila was trying to do it by completing the square. Note taking half of the coef. of x and squaring it. Factoring is too easy.
*Tuesday, September 6, 2011 at 8:12pm by Damon*

**pre calc**

area of triangle XYZ given:side z=11 side x=7 and side y=13 what are the angles and area please? please explain
*Thursday, December 8, 2011 at 5:07pm by jim*

**Pre-Calc help NOW PLEASE!!!**

Evaluate the expression under the given conditions. tan(A+B); cosA=-1/7, A in quadrant 3, sinB=1/2, B in quadrant 2.
*Wednesday, April 18, 2012 at 3:33pm by Josh*

**Pre Calc**

find the magnitude and direction angle of the vector v, v=-2i+5j please help i have no idea how to do this. could you show me step by step?
*Wednesday, June 2, 2010 at 10:13am by Nate*

**Pre-Calc**

I'm so stuck-this stuff is so far above me right now-Please help (3x^3-5^2+6x-9)/(x+5) or can someone direct me to a site that can solve this and show the steps-I don't even know where to start Thank you
*Friday, September 9, 2011 at 10:25am by Jonah*

**Pre-calc PLEASE HELP!**

Could you tell me why you squared those numbers? Is there a formula? If I was doing sin instead, would 1^2 +y^2=√6^2 be in a different order? Also how did you get the 5? Isn't the square of 6 to the second power just 6?
*Friday, December 9, 2011 at 11:30am by Jill*

**PRE-CALC**

Determine the domain of the following function: f(x)=sqrt x-7/x^2-5x-6 I think the domain is [7,all real numbers) Can you please tell me if this is correct?
*Monday, September 21, 2009 at 8:41pm by MUFFY*

**Pre-Calc**

I am stuck solving this problem, any help please..Many thanks find all numbers x that satisfy the given equation ln(2x) ------- =2 ln(3x)
*Thursday, December 9, 2010 at 1:08am by Roy*

**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**

Use the fundamental identities and appropriate algebraic operations to simplify the expression. cosx / (1+sinx) Answer: secx Can someone please assist as to how I get to the answer?
*Thursday, April 28, 2011 at 9:11pm by Lizette*

**Pre-calc**

If llull=1 and llvll=3, and the vectors maek angles of 170 degrees and 130 degrees with the x-axis respectively, find the component form of the sum of u and V. Please help thanks!
*Monday, February 13, 2012 at 11:32pm by Casandra*

**Pre-Calc**

Please help me solve these two equations!! Divide and express as a polynomial: 12a^8b^5 - 9a^14b^15 + 6a^6b^10 _____________________________________ 3a^2b^5 Simplify: a/b - b/a __________ a-b/b
*Wednesday, November 27, 2013 at 9:15pm by Maggie*

**pre-calc**

Bobpursley already answered your question. What is it that you do not understand about his answer? Also -- please don't keep posting the same question -- even under different names.
*Friday, May 29, 2009 at 6:40pm by Ms. Sue*

**Pre-CALC**

Can anyone help me with this problem step by step please... Find the area inside the ellipse in the xy-plane determined by the given equation x^2 y^2 ____ + ___ =1 10 25
*Tuesday, December 7, 2010 at 9:09pm by Amy*

**Pre-Calc**

Simplify the difference quotient [f(2 + h) − f(2)]/h ; if h ≠ 0. f(x) = x2 − 3x I keep getting the answer wrong. I must be messing up my steps...Please Help
*Monday, January 20, 2014 at 11:59pm by Kerri*

**pre calc**

This is a long, long way from pre-calculus. 2,4 is in quadrant I when on any axis, it is not in a quadrant. In the case of 0,3 it is on the border between quadrants I,and II.
*Thursday, September 10, 2009 at 5:40pm by bobpursley*

**Pre-calc**

Pre calculus? This is stock Algebra II. put the equations in the form of ax^2+bx+c=0 then factor. for instance, c is already in that form. 2x^2+x-6=0 (2x-3)(x+2)=0 x= 3/2 x=-2 do the others the same method.
*Monday, January 25, 2010 at 5:18pm by bobpursley*

**Pre-Calc**

I have to solve these using matrices by hand. Can someone please help me? 2x-3y-2z=4 (1/4)x-(2/5)y+(3/4)z=(-1/3) -2x+1.3y-3z=5 Thank you so much! :)
*Monday, December 3, 2012 at 2:41am by Tori*

**pre calc**

its 2.4
*Monday, January 21, 2008 at 11:59am by Julie*

**PRE CALC**

THANK U
*Sunday, October 5, 2008 at 7:12pm by Karren*

**PRE CALC**

Yes.
*Sunday, October 5, 2008 at 7:12pm by bobpursley*

**pre calc**

okay thanks
*Monday, February 9, 2009 at 11:44am by kate*

**pre calc**

yes!
*Tuesday, March 31, 2009 at 8:19pm by Reiny*

**pre-calc**

and "c"?
*Monday, May 25, 2009 at 10:40pm by Anonymous*

**Pre Calc**

How did you get n?
*Wednesday, August 26, 2009 at 11:37am by Megan*

**Pre Calc**

How did you get n?
*Wednesday, August 26, 2009 at 11:37am by Megan*

**pre calc**

thank you!
*Sunday, August 30, 2009 at 3:30pm by gab*

**pre calc**

1,2,3,...
*Tuesday, September 8, 2009 at 6:09pm by bobpursley*

**pre calc**

is 4,5, and 6 as well
*Tuesday, September 8, 2009 at 6:09pm by jaz*

**PRE-CALC**

:) Thanks!
*Sunday, September 20, 2009 at 9:01pm by MUFFY*

**Pre-Calc**

Ok thanks.
*Thursday, September 24, 2009 at 8:59pm by MUFFY Question has been fixed*

**Pre-Calc**

You're welcome!
*Thursday, September 24, 2009 at 8:59pm by MathMate*

**PRE-CALC**

Thanks :D
*Friday, October 16, 2009 at 10:49pm by Muffy*

**pre calc**

What is x^2+y^2=4
*Thursday, October 29, 2009 at 6:14pm by bobpursley*

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