Thursday
June 20, 2013

# Search: Pre-calc help please!!!

Number of results: 82,766

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...
Wednesday, May 9, 2007 at 12:36pm by Sarah

pre-calc help please !
welcome!
Sunday, December 2, 2012 at 9:53pm by Reiny

pre-calc help please !
thank you !!!!
Sunday, December 2, 2012 at 9:53pm by Monica

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
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

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 Help!!!!!!!!!!!!!!!!1
can someone help me please????
Sunday, April 15, 2012 at 9:48pm by John

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

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

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

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

pre-calc
where did you ge the 7/6?
Thursday, September 27, 2012 at 10:51pm by Ms. Sue please help!

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

Pre-Calc
Saturday, September 10, 2011 at 2:20pm by Anonymous

Pre calc
Wednesday, May 14, 2008 at 6:51pm by Damon

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

Pre calc
Friday, January 25, 2013 at 12:54am by Joe

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
Thursday, September 10, 2009 at 8:34pm by muffy

Pre-Calc
Thursday, November 1, 2012 at 6:34pm by Gaby

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

Pre-Calc/Calc
Looks like C to me
Wednesday, April 17, 2013 at 11:05am by Steve

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

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 (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
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
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

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
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

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

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
A pre-calculus answer is -0.64 + k&pi; radians, where k&isin;&#8484;.
Monday, January 25, 2010 at 8:11pm by MathMate

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
I have no idea how to do this problem I thought you would have to do something with the diagonals but not sure... The parallel sides of a trapezoid are 4 and 10 centimeters long and the oblique sides are 8 and 12 centimeters long. Fi9nd the angles and the area of the trapezoid
Monday, October 5, 2009 at 1:43pm by Pre Calc

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

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

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
Sunday, May 15, 2011 at 11:32pm by esora

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

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

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

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

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
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

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

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

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

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

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

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

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

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

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
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

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
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 helpppp
Evaluate the expression under the given conditions (show steps please) sin(è/2); tan è = &#8722; 5 / 12 , è in Quadrant IV
Saturday, April 21, 2012 at 7:42pm by John

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
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

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...
Tuesday, September 6, 2011 at 8:12pm by Sheila

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/Calc
Looks like D to me. sin u + sin v = 2 sin(½(u+v)) cos(½(u&#8722;v))
Wednesday, April 17, 2013 at 11:12am by Steve

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

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
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
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
use properties of the trigonometric function to find the exact value of each expression. Do no use a calculator. sec ( - pi/18) * cos (37 pi)/18 I do not see how to do this problem. Every time I do it out I get a reference angle of twenty degrees which isn't on the unit ...
Friday, November 13, 2009 at 2:40pm by Pre Calc

Could you tell me why you squared those numbers? Is there a formula? If I was doing sin instead, would 1^2 +y^2=&#8730;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
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
how did you go from the first line to the next in these lines sec(2PI +Pi/18)cos(37PI/18) sec(37pi/18)cos(37PI/18) 1/cos * cos= 1
Friday, November 13, 2009 at 2:40pm by Pre Calc

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
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
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
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
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
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
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
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
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 5 8 1 5 2 7 6 5
Friday, November 13, 2009 at 6:52pm by Pre Calc

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

Calculate the exact values of the cot(theta) and sin(theta) for the acute angle theta if sec(theta)= the square root of 6. Thank you so much!
Friday, December 9, 2011 at 11:30am by Jill

Pre-Calc
Thank you!
Thursday, November 1, 2012 at 6:34pm by Gaby

Pre Calc
Thank you :)
Tuesday, September 4, 2012 at 2:59pm by Gaby

Pre-Calc
thank you!
Wednesday, May 2, 2012 at 10:17pm by Zoey

pre calc
g(1/2)=-(1/2)^2+7(1/2)-7
Wednesday, January 25, 2012 at 10:05am by Dorene

Pre-Calc
thank you
Wednesday, September 28, 2011 at 9:18am by Johnathan

Pre-Calc
Thank you.
Sunday, September 11, 2011 at 6:18pm by Anonymous

PRE CALC
x=1, y=-4, z=-5
Tuesday, June 7, 2011 at 10:54pm by Mgraph

PRE CALC
thank you! :)
Sunday, May 15, 2011 at 11:32pm by Anonymous

Pre Calc
HELP!
Thursday, November 18, 2010 at 8:04pm by Sharon

Pre-Calc
2-2 = 0
Sunday, April 10, 2011 at 9:23pm by PsyDAG

Pre-Calc
2-2
Sunday, April 10, 2011 at 9:23pm by Chelsey

pre-calc
(3^-2+4^-2)^-1/2
Wednesday, February 16, 2011 at 7:10pm by megan

pre-calc
(3^-2+4^-2)^-1/2
Wednesday, February 16, 2011 at 7:10pm by megan

Pre Calc
thanks!
Monday, February 14, 2011 at 10:32pm by Giselle

pre calc
4* 2^x 2^y = 4*2^(x+y) but 4=2^2 so 2^(2+x+y)
Tuesday, December 21, 2010 at 6:32pm by Damon

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