Search: Pre-Calc-Please check my answer-I think its correc

Number of results: 186,806

Pre-Calc-Please check my answer-I think its correc
In google type: quadratic equation online When you see list of results click on: Free Online Quadratic Equation Solver:Solve by Quadratic Formula When page be open in rectangle type: 2x^2 + 5x = 10 and click option: solve it! You wil see solution step-by-step.
Wednesday, September 7, 2011 at 1:47pm by Bosnian

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 ...
Wednesday, September 7, 2011 at 1:47pm by Sheila

Pre-Calculus/Trig Check please and help
correc, typo. -3x^2
Monday, September 5, 2011 at 8:52am by bobpursley

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

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/Math
Ohh it was hard me :/ .Do you think you can answer my other questions?
Monday, April 30, 2012 at 12:23am by Yadira

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

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

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
My question is I^793 I think the answer is just I because it is the only number that can go into it. Is that correct?
Saturday, October 31, 2009 at 1:57pm by Muffy

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 ...
Tuesday, September 27, 2011 at 9:20pm by Jonathan

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

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 ...
Saturday, October 3, 2009 at 11:19am by MathMate

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

Pre-Calc-Please check my answer-I think I have it
In google type: quadratic equation online When you see list of results click on: Free Online Quadratic Equation Solver:Solve by Quadratic Formula When page be open in rectangle type: 2x^2 + 5x = 10 and click option: solve it! You wil see solution step-by-step.
Wednesday, September 7, 2011 at 4:07pm by Bosnian

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-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 ...
Wednesday, September 7, 2011 at 4:07pm by Sheila

Pre-Calc-Please check
I have three questions: 1. What is the remainder of (x^3 + 2x^2 - 5x+4) /(x-3) I think the answer is 34?? 2. Evaluate (4+5i)(2+2i) =4(2) +4(2i) + 5i(2) + 5i(2i) = 8 + 8i + 10i+10i^2(-1) =-2 + 18i 3. Using Rational Roots Theorem, list all possible rational root of f(x) = 2x^3...
Monday, January 9, 2012 at 8:23pm by Julia

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 P lease check
Please check my answers; 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.Which is not a representation of (5,150 degree) (-5,-30 degree)I think it is this one? (-5,330 degree) (5,510 degree) 3....
Tuesday, September 27, 2011 at 3:55pm by Jonathan

Pre-Calculus
I posted earlier and didn't get an answer so I'm posting again-hoping someone could please check these two-I think they're correct Please check my answer: I think it's correct? 1.Find polar form of (-3,2) r=sqrt of (-3)^2 + 2^2)=sqrt (13) = 3.61 tan^-1(2/-3) = ...
Thursday, October 13, 2011 at 4:30pm by Courtney

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

Health care please check answer
Please check my answer thank you Verifying the accuracy of HCPCS codes is an important function in what ? I think that it is maintence of chargemasters
Tuesday, March 11, 2008 at 2:49pm by Rebbeckha

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

English please check my answer
please check to see if I have the right answer thank you The patient had a radiogram performed. What doed the root word indicate I think it's b
Thursday, March 20, 2008 at 5:59pm by Dakotah

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/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-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

To DrBob222(Please check Chem)
#4. I believe dissolv ing ammonium nitrate in H2O is a highly endothermic reaction. Look at the stam answer. #12. I think 10.8 kJ. Check me out on this. #14. I think you made a typo. The correct answer is not listed. I think you intended to write 3.16E-9 and not 3.16E9.
Thursday, June 21, 2012 at 11:34am by DrBob222

pre algebra
What do you think? I'll be glad to check your answer.
Sunday, June 20, 2010 at 7:11pm by Ms. Sue

pre algebra
What do you think? I'll be glad to check your answer.
Sunday, June 20, 2010 at 7:06pm by Ms. Sue

Physics-Please check answer
Damon helped me with this calc but I think the answer should be -20, not -22, could someone please check the calculation If a ball is thrown into the wall at 14 m/s and comes off at 6 m/s, what is change of velocity of the ball? I think it would be 14-6 = (-8 m/s) Is that ...
Wednesday, January 5, 2011 at 5:39pm by Russ

Pre-calc
answered this above I think
Saturday, January 1, 2011 at 1:53pm by Damon

calc: avg value
Find the average value of the function "f(x) = x^2 sqrt(1+x^3)" on the interval [0,2]. and this is what i did.. please check for mistakes. thanks :D f(x) = x^2 sqrt(1+x^3), [0,2] f ave = (1/(b-a))*inegral of a to b for: f(x) dx f ave = (1/(2-0))*integral of 0 to 2 ...
Monday, July 2, 2007 at 2:58pm by COFFEE

Calc..Help Please
I get the same derivative. You can post your numerical answer for a check if you wish.
Monday, February 20, 2012 at 6:12pm by MathMate

Pre-calc
I shouldve known better than to actually think i was gunna get help...
Wednesday, May 23, 2012 at 9:41pm by Xochil

pre-calc
forgot to put I am not a tutor I think this is right
Wednesday, January 12, 2011 at 6:31pm by helper

Math (Check)
The equation y = a^x is a decreasing function a = 1) 1 2) 2 3) -3 4) .25 I think that the correct answer is 3) -3...but I am not sure why? Can anyone please check if I am right and explain why? Please....Thank you for your help!!!
Monday, March 9, 2009 at 7:11pm by jess

Health insurance please check answer
please check my answer thank you very much :) Which health insurance program is designed to complement the retirment survivor , and disability insurance enacted under the Title II of the Social Security Act? I think the answer is Medicare
Monday, March 3, 2008 at 9:55am by Lauren

Pre-Calc
Please check my answers; 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.Which is not a representation of (5,150 degree) (-5,-30 degree)I think it is this one? (-5,330 degree) (5,510 degree) 3....
Tuesday, September 27, 2011 at 1:59pm by Jonathan

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 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
so that is the answer
Thursday, January 14, 2010 at 5:38pm by kim

pre calc
so that is the answer for a and b
Monday, January 4, 2010 at 4:58pm by kate

Steve pre calc
What is the right hand limit of f(x)= |x-9|/x-6 as x approaches 7? I think it's 1.
Wednesday, November 28, 2012 at 11:51am by Leandra

Pre-Calc
I know about Descartes Rule but I don't really get how to figure this out-Please check my answers- I don't get this one find number of possible positive and negative real roots of f(x) = x^4-x^3+2x^2 + x-5 I think there are 3 sign changes so there are 3 positive but I ...
Monday, September 12, 2011 at 5:27pm by Jaclyn

Pre Calc
Someone did answer it, however, I believe that their answer is incorrect. Also, I changed my answer a bit. I'm sorry, I messed up but I am becoming very frustrated with this problem.
Thursday, September 10, 2009 at 8:34pm by muffy

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 my answers;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.Which is not a ...
Tuesday, September 27, 2011 at 5:48pm by Jonathan

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

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

Pre-Calc
it depends on what you mean by (fg)(3) What I think you are working with is a convolutions f convolution g of 3 is = (x-4)^2 - 8 when x=3) or = 1-8 or -7
Sunday, October 2, 2011 at 5:03pm by bobpursley

Pre-calculus-check answer please
Write the standard form of the equation of the circle that is tangent to the line x=3 and has center at (-2,-7). Answer: (x+2)^2+(y+7)^2=49 Is this correct?
Monday, October 13, 2008 at 11:48am by Lucy

English
Please check for any errors and correc them. Thanks!!! As we discussed, I have made reservations for three days for a sweet of rooms at the North British Hotel in Glasgow Scotland. There are three connection rooms in the sweet. It should suite your needs quite satisfactorily. ...
Wednesday, April 20, 2011 at 11:27pm by ANGELA

Pre-Calculus/Trig Check please and help
Could someone please check the first one and help me with the second one. I'm stuck-Thank you 1.What are theroots of the following polynomial equation? (x+2i)(x-5)(x-2i)(x+8) = 0 I think the roots are -2i,5,2i,-8-you take out the roots as opposites of what are in the ...
Monday, September 5, 2011 at 8:52am by Tabitha

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

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
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
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 ...
Tuesday, September 27, 2011 at 7:14pm by Jonathan

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

Health care please check my answer
Please check my answer thanks What does term Apex represent . A 65 year old has a murmor over the apex of the heart. A. tip B. nearest the middle C. front D. Back I think it is A tip
Wednesday, March 19, 2008 at 11:10pm by Kaleigh-Anne

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

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

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
yes but i still dont get the answer!!!
Tuesday, June 7, 2011 at 10:54pm by gabs

pre calc
which one is the correct answer
Thursday, January 14, 2010 at 5:38pm by kim

Pre Calc
So I was correct the answer is i right?
Saturday, October 31, 2009 at 1:57pm by Muffy

Pre-Algebra
I think the answer is 3.2 but please tell me if I'm wrong
Monday, October 1, 2012 at 8:47am by Anonymous

Pre-calc
The question is solve for cosx= 0.60 on the interval [0,2pi). The answer is to be posted in radians. I don't understand how to find the answer.
Thursday, October 7, 2010 at 6:03pm by Katie

Pre Calc
They are different by 3 PI. Think about the sine function with a difference of 3PI, it changes sign. So, it is right, as if you add 3 pi, the sign changes, they are the SAME answer.
Thursday, December 10, 2009 at 6:24pm by bobpursley

PRE CALC
Use matrices to solve the system. (If the system has infinitely many solutions, express your answer in terms of c, where x = x(c), y = y(c), and z = c. If the system has no solution, enter NONE for each answer.) 5x+2y-z=2 x-2y+2z= -1 3y+z= -17 ive done tons of these but this ...
Tuesday, June 7, 2011 at 10:54pm by gabs

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

Pre calc
Please finish y+7=6/7x-30/7
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-Calculus-check answers
I agree about the sign change but your answer d makes the graph shorter, not taller. I think b)
Sunday, August 10, 2008 at 12:26pm by Damon

Pre Calc
shut up u put the answer
Wednesday, October 19, 2011 at 8:32pm by gaaay

Pre-Calc
y=cos^-1(6pi/7) Is the answer undefined? Thanks for your help.
Tuesday, February 8, 2011 at 12:58am by Johanna

pre calc
pleasse help!!! i don't need the answer just how to do it
Thursday, September 10, 2009 at 8:03pm by Steph

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