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April 17, 2014

Search: Pre-Calc-Please check

Number of results: 118,168

Pre-Calc-Please check
Yes!
Tuesday, January 10, 2012 at 11:09am by drwls

Pre-Calc-please check
Thank you for checking
Wednesday, January 4, 2012 at 12:54pm by Bethany

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-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 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-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

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-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

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

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
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'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 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-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
Please check answer and help with one of them: 1. check please car in an accident speed of car is the s, d is length of skid=30 feet f is coefficient=0.5 use formula to find s=sqaure root of 30*f*d My answer is 21.21 because I took square root of 30(0.5)(30) 2. this one is ...
Sunday, September 18, 2011 at 2:57pm by Ellie

Pre-Calc
Please check answer and help with one of them: 1. check please car in an accident speed of car is the s, d is length of skid=30 feet f is coefficient=0.5 use formula to find s=sqaure root of 30*f*d My answer is 21.21 because I took square root of 30(0.5)(30) 2. this one is ...
Sunday, September 18, 2011 at 5:03pm by Elllie

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
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

Pre-calc
your two vectors are the same, so the angle between them is 0 check your typing.
Wednesday, May 30, 2012 at 10:16pm by Reiny

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

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

Bobpursley - pre calc
Bob, check my reply to your email from yesterday. It applies to this question.
Tuesday, November 2, 2010 at 12:13pm by Reiny

Pre-Calc-Please check
Is this correct? Using Rational Roots Theorem, list all possible rational root of f(x) = 2x^3 - 3x^2 + 5x+6 Possible roots are p/a = -+1, -+2, +-3, -+6. -+3/2
Tuesday, January 10, 2012 at 11:09am by Julia

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-please check
Please check this for me expand (3z-2b)^5 using Binomial Theorem (a+b)^n = n on top sigma in middle k=0 to right (n/k)a^(n-k)b^k (3a-2b)^5 = 5 on top sigma in middle k=0 on bottom(5/k)(3a)^5-k(-2b)^k (5/0)(3a)^5(-2b)^0+(5/1)(3a)^4(-2b)^1 +(5/2)(3a)^3(-2b)^2 +(5/3)(3a)^2(-2b)^3...
Wednesday, January 4, 2012 at 12:54pm by Bethany

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

Help please!! For pre-calc
Logx16=-2 how do you solve this?
Tuesday, December 10, 2013 at 8:47pm by Anonymous

pre calc trig check my work please
not quite, but you are close (sinx + cosx)/sinx = sinx/sinx + cosx/sinx = 1 + cotx you left out the "1"
Wednesday, October 20, 2010 at 11:32pm by Reiny

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
"He drew the picture with the parabola at points (-6,0) (6,0) (0,36)" The point (0,6) is not on the parabola, (0,36) is. The parabola is given as: y(x)=36-x² Given the rectangle is inside the parabola and above (I think) the x-axis, we define the four corners of the ...
Saturday, October 3, 2009 at 11:19am by MathMate

pre calc
find the exact solution algebraically and check it by substituting into the orginal equation. 1. 36(1/3)^x/5=4 2. 32(1/4)^x/3=2
Sunday, June 12, 2011 at 9:55pm by caleb

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

pre calc
find exact solution algebraically and check it by substituting into the original equation. 2(10^-x/3)=20 logtiny4(x-5)=-1
Sunday, June 12, 2011 at 10:08pm by celeste

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
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

Pre-Calc-Please check
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 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 = -1/5*1/2621444 = -1/1310702
Thursday, December 15, 2011 at 6:10pm by Sandra

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 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

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
A pre-calculus answer is -0.64 + kπ radians, where k∈ℤ.
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

Pre Calc
Thank you so much, i'm so stressed if its not too much trouble check out some of my other questions;)
Tuesday, August 31, 2010 at 7:31pm by Connor

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 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
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

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 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...
Thursday, December 15, 2011 at 8:43pm 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...
Thursday, December 15, 2011 at 8:44pm by Sandra

Pre-Calc-Please check answer
1. either have n=0 under the sigma, or use (2j+4) as the summand. 2. good work, but 4^9 = 262144. you have an extra 4. 1/5 * 1/262144 = 1/1310720 that dyslexia will get you every time. I noticed it right off, because no multiple of 5 ends in 2 :-) did you hear about the ...
Thursday, December 15, 2011 at 8:44pm by Steve

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
Could somebody please check this for me? Dtermine whether the graph of each equation is symmetric with respect to the origin, the x-axis, the y-axis, and the line y=x or the line y=-x. I came up with the line being symmetric to the x-axis, the y-axis, and the line y=x. I'm not...
Monday, October 8, 2007 at 2:13pm by Natalie

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
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
I tried a few steps and got nowhere. At that point, I simply take any angle, e.g. 44 degrees, and test it in the equation. LS was not equal to RS. check your typing
Tuesday, February 9, 2010 at 7:00pm by Reiny

Pre-Calc
Ok so far Don't let the fractions scare you 1/1.7 - 1/2.3 = 1/x .15345 = 1/x , take reciprocal of both sides, (flip it) 1/.15345 = x/1 x = 6.5 check: 1/2.3 + 1/6.5 = .5886 1/1.7 = .2882 (close enough)
Sunday, December 6, 2009 at 9:49pm by Reiny

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

Pre-Calc-Please check I'm desperate
Please check my answers I really need to do my homeowrk!;This are polar coordinates we're studying-I'm almost positive the first two are correct. 1.Which of the folowing is another representation of (-3,pi)? (3,120degree) (3,0 degree)I think it is this one?? ((-3,0 degree) 2....
Tuesday, September 27, 2011 at 9:20pm by Jonathan

Pre-Calc/TrigPlease check this answer I redid
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 and 3
Tuesday, September 6, 2011 at 5:05pm by Sheila

pre calc trig check my work please
sin x + cos x -------------- = ? sin x sin x cos x ----- + ----- = sin x sin x cos x/sin x = cot x this is what i got, the problem is we have a match the expression to the equation work sheet and this is not one of the answers. need to figure out what im doing wrong so i can ...
Wednesday, October 20, 2010 at 11:32pm by Anna

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

Pre-Calc-Please check my answer-I think its correc
Could someone please check these-I had tried one last night but it was really wrong so I'm been working-hopefully these are correct. What are the roots of the equation and answers have to be simplified 2x^2 + 5x-10 =0 2x^2 + 5x-10+10=0+10 2x^2 + 5x = 10 2x^2 + 5x/2 = 10/2 2x^2...
Wednesday, September 7, 2011 at 1:47pm by Sheila

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
check your typing, is this the way you wanted it to look like ? Don't try to form fractions instead place numerator and denominatr within brackets and use / to show the division bar. e.g. (4x -9)/(x^2+6x-7)
Wednesday, November 27, 2013 at 9:15pm by Reiny

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

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

Algebra II-Please check calc
1) yes 2) yes
Wednesday, April 6, 2011 at 11:13am by bobpursley

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(/2); tan = − 5 / 12 , in Quadrant IV
Saturday, April 21, 2012 at 7:42pm by John

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 trig check my work please
I do not see why you changed the + into a ÷, namely: from: sin x cos x ----- + ----- = sin x sin x (which I see as sin/sin+cos/sin) But sin x/sin x = 1, and cos x/sin x = cot x so the sum is 1 + cot x.
Wednesday, October 20, 2010 at 11:32pm by MathMate

Pre Calc
My denominators in the checks should have been 11 not 10, so ... let's test it: if t = 2.9 F = 300sin(5pi/11)(-1.1) + 500 = 200 ..... Check! if t=5.1 F = 300sin(5pi/11)(1.1) + 500 = 800 .... Check!!!! (I committed a typo, then cut and pasted that typo)
Sunday, December 6, 2009 at 11:17pm by Reiny

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

Pre-Calc-Please check my answer-I think I have it
Could someone please check these-I had tried one last night but it was really wrong so I'm been working-hopefully these are correct. What are the roots of the equation and answers have to be simplified 2x^2 + 5x-10 =0 2x^2 + 5x-10+10=0+10 2x^2 + 5x = 10 2x^2 + 5x/2 = 10/2 2x^2...
Wednesday, September 7, 2011 at 4:07pm by Sheila

Pre-Calc-Please check my answer-I think I have it
Could someone please check these-I had tried one last night but it was really wrong so I'm been working-hopefully these are correct. What are the roots of the equation and answers have to be simplified 2x^2 + 5x-10 =0 2x^2 + 5x-10+10=0+10 2x^2 + 5x = 10 2x^2 + 5x/2 = 10/2 2x^2...
Wednesday, September 7, 2011 at 4:07pm by Sheila

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