Search: Calculus (can someone please verify this?)

Number of results: 106,306

Calculus
Simplify as much as possible: e^3ln5 Does the three become an exponent on 5? So.. =e^ln5^3 =25 Can someone verify this for me please?
Sunday, October 3, 2010 at 4:52pm by Jon

Calculus
Can someone please work this algebra. verify that y(x) = -ln (x - cx^2) satisfies the ODE x(e^y - y') = 2 where c is constant. I have been working through this and it is way too messy.
Tuesday, September 22, 2009 at 1:06am by Yamada

Calculus
Find the area enclosed by the following functions from x=0 to x=2: y=sqrt*(x+2) y=1/(1+x) I got 2/3(8)-ln3-2/3(sqrt*8) can someone please verify this?
Sunday, January 30, 2011 at 3:26pm by Rachel

Calculus
What is the integral of 1-tan^2theta from 0 to pi/3? Using the identity tan^2theta=sec^2theta-1, I got my answer to be 2pi/3 - sqrt*3 Can someone verify this for me please?
Saturday, January 22, 2011 at 7:39pm by Rachel

algebra
Could someone please verify if this rational equation is undefined? I think that it is: w/2 - 2/w = 0
Monday, January 25, 2010 at 12:21am by sam

maths
Using the following formula for a triangular number, verify that 1225 and 41 616 are triangular numbers. [Hint verify that there is an n for each number that satisfies the equation] e.g., t5 = 15 =(5+1)/2 tn = n(n+1)/2 so, should I plug in 1225 and 41,616 and work the equation...
Thursday, November 22, 2007 at 5:39pm by Lily

Math
Hi - I'm finding this question a bit tricky and think I answered it wrong, can someone please verify for me? Many thanks.... In triangle EFG, find the value of f, if e = 7.3 cm, g = 8.7 cm and <E = 73. Please help
Sunday, August 21, 2011 at 10:17pm by Dee

Calculus - Riemann Sum
Given a function f(x) = squr(3 + 2x), on [-1,1], subdivided into 4 equally large intervals, calculate the Riemann sum SR4 = 4Ei=1 f(xi)delta(x). my attempt at the solution: [-1,1], a = -1 and b = 1 delta(x) = 1 - (-1)/n = 2/n xi = a + delta(x)i xi = -1 + 2/n(i) so after adding...
Monday, August 6, 2012 at 10:07pm by Robert

Math Challenge check
Ah yes. I see which problem drew my ire. You posted the problem, and Damon provided a nice elegant solution, explaining how to draw the grid and count the boxes above the diagonal, and then you reposted his solution and asked someone else to verify it. If a point in his ...
Wednesday, November 2, 2011 at 7:23pm by Steve

Calculus
I need help with these two review calculus problems for my final exam. What is the derivative of a). (5x^2+9x-7)^5 b). Lne^x^3 For a. I got 50x+45(5x^5+9x-7)^4 For b. I got 3x^2 Can you verify please?
Monday, May 21, 2012 at 11:58am by Sam

early childhood
Can someone please help me with this? I think I have the right answer--just need verification. Which statement most accurately describes "normal" growth and development of the pre-school child? 1.It occurs at a uniform rate for all chidren. 2.It is a simple process. ...
Wednesday, April 11, 2007 at 8:44pm by Bethany

Biology help please
For which of the following organisms would you expect the DNA sequence to be least similar to the housefly’s? A)butterfly B)grasshopper C)monkey D)beetle im pretty sure its monkey but if someone else from connections could verify or help me out that would be great. or ...
Friday, December 7, 2012 at 2:53pm by BaileyBubble

calculus
How can we verify area of square and rectangle by calculus ?
Thursday, December 15, 2011 at 12:45pm by Abay

Pre Calculus
(cotx)(cscx)+secx=(csc^2x)(secx) Please help to verify this trigonometric identity.
Sunday, November 4, 2012 at 1:17pm by Marie

Calculus
Verify if correct or not please =) What is the slope of the normal to y= (x^2-1)/(x+5) at (1,0) a) -3 b) -1/2 c) -1/3 d) 1/3 Answer is A, -3. ---------------------------------------- What is the y-intercept of the line that is tangent to f(x)=4/(3x+1) at (-1, -2)? a)-5 b) -3/4...
Tuesday, February 21, 2012 at 2:17am by Jake

Pre-Calculus
Verify: 1/(1-sintheta) * 1/(1+sintheta) = sec^2theta sec^2theta is the answer, it would be great if someone can do the steps for me. thank you.
Monday, January 23, 2012 at 11:48am by natalie

Calculus (can someone please verify this?)
Gravel is being dumped from a conveyor belt at a rate of 30 ft^3/min. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 19 feet high? Vol = (1/3)pi (h^2/4)(h...
Tuesday, April 12, 2011 at 4:48pm by Cecille

Algebra
I need to write an equation for when the slope is 5/3 and the y-intercept is (0,-3) I got Y = 5/3x +o Cn someone verify for me please also i dont know how to find the slope of x=1
Sunday, March 18, 2012 at 6:01pm by Amy

calculus
find the equationss of both tangenr lines to the curve defined by y=(1/x^2), x cannot equal 0 from the external point P(0,1). I tried but i got one equation. Can you please verify if it is: y=-0.38x-1. Thanks
Thursday, March 4, 2010 at 6:08pm by Anonymous

math
Can someone help me solve the following....using elimination methods 1) 5x+7y=43 -4x+y=25 2)9x-9y=36 7y-3x=-14 I think the answers are would the answer to number 1 be (-4.26,1.52)? would the answer to number 2 be (-0.5,-6.5)? Can someone please verify or tell me what I did ...
Saturday, March 13, 2010 at 7:19pm by Holly

calculus
Can someone please tell me what the word "WHOLE" AND "IRRATIONAL" MEAN IN CALCULUS? THANKS
Tuesday, September 2, 2008 at 12:39pm by Mike

4th grade math
I believe it it 8/52 because there are 2 multpiple of ten in each suits and there are 4 types of suits. Will someone please verify this. All you will have to do now is simplify the answer.
Wednesday, March 17, 2010 at 4:01pm by Anonymous

Physics, Calculus(alot of stuff together)= HELP!!!
Can someone please check my Calculus work and see if it is correct? THANK YOU =D
Sunday, September 16, 2007 at 7:12pm by ~christina~

calculus-can someone please help me with this ques
find the rate of change of f(x)=x^2+4 a. from -2 to 0 b. from 1 to 3 c. from -2 to 1 please show work
Sunday, December 16, 2012 at 10:47pm by confused--Please help!!!!

math
I need to simplify the following rational exponent: (64n^9)^2/3 I've done the following but don't think this is right: = 3|64n^18 = 4n^2.62 I don't know how to type in the root symbol so I used | to mean root. Can someone please verify this and if incorrect please ...
Thursday, November 18, 2010 at 12:27pm by Dania

Calculus
can someone please explain 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 7 0 4 1 1 4 5
Sunday, November 1, 2009 at 12:14am by Calculus

Calculus
can someone please explain 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 7 0 4 1 1 4 5
Saturday, October 31, 2009 at 11:45pm by Calculus

Pre Calculus
(secx)/(tanx)+(cscx)/(cotx)=secx+cscx Please help me verify this trigonometric identity.
Thursday, November 1, 2012 at 7:31pm by Lainey

calculus
Verify the identity: arctanx + arctan(1/x)=∏/2 using calculus theory. (Hint: Differentiate the left hand side of the identity)
Wednesday, December 7, 2011 at 3:59pm by NYSNC

Calculus
Please verify the answers~ Thank you! 1. Which of the following is the x-intercept of the plane 2x-4z+1=0? a) P(2,0,-4) b) P(0,0,0) c) P(-1/2,0,0) d) P(0,0,1/4) Answer is C. 2. Which of the following is not a direction vector for the plane 3x-2y-z+4=0? a) v(3,-2,-1) b) v(0,-2,...
Tuesday, April 10, 2012 at 2:37am by Antia

Calculus (can someone please verify this?)
"30 = (1/12)pi(19^2) dh/dt " Shouldn't it be 30 = (1/4)πh^2 dh/dt? dV/dt = dV/dh * dh/dt dh/dt = dV/dt / dV/dh =30 / (πh^2/4) I get 0.1058 ft/min. Check the unit for the answer, as well as the format (decimals? how many? exact expressions?) the ...
Tuesday, April 12, 2011 at 4:48pm by MathMate

math
Hi - I'm finding this question a bit tricky and think I answered it wrong, can someone please verify for me? Many thanks.... In ƒ¢ EFG, find the value of f, if e = 7.3 cm, g = 8.7 cm and ÚE = 73‹. my answer was 4.73 cm but I'm not ...
Sunday, August 21, 2011 at 1:39pm by Dee

Calculus
please someone help me out, this question is driving me crazy!!!
Wednesday, September 28, 2011 at 8:24pm by please help!!!

Calculus - Verify?
tyvm <3
Sunday, February 20, 2011 at 11:50am by Aric

Calculus
can someone please please help me with this cause i have more questions like it, but i can't figure out how to do it.
Saturday, February 25, 2012 at 6:29pm by Labiba

Calculus
The radius of a tank can not exceed 5m, and the height can not exceed 12 m. Is it possible to construct a tank with a volume of 900m^3? If it is possible, determine the minimum amount of material required to make the tank. When i solve it, the radius exceeds the restrictions...
Friday, March 19, 2010 at 8:42pm by Jeff

Calculus: Derivatives
I'm having trouble understanding what derivatives in calculus (instantaneous speed) is. Can someone please explain it to me, or provide some easy links to learn from? Thanks!
Sunday, September 9, 2007 at 8:32pm by Joe

calculus
Verify this equation, y = 4^x-1 You need parentheses. Is it, y = 4^(x - 1)? Or, y = 4^(x) - 1? Or ?
Sunday, January 30, 2011 at 1:44pm by helper

Chemistry
Following question I need help with part b) Please verify my answer for part a) too if possible. Consider the following reaction for silver tarnishing: 3Ag2S(s) + 2Al(s) -> 6Ag(s) + Al2S3(s) a. State the oxidation number for each element in the reaction. 3Ag2S(s) + 2Al(...
Tuesday, June 14, 2011 at 8:09pm by Dexter

calculus-can someone please help me with this ques
Given the following polynomial, find a. the zerros and the multiplicity of each b. where the graph crosses or touches the x-axis c. number of turning points d. end behavior f(x)=(x-1)(x-5) **please show work**
Monday, December 17, 2012 at 1:04am by confused--Please help!!!!

Biology
After you post YOUR answer, someone will be glad to verify it for you. Sra
Tuesday, November 8, 2011 at 4:37pm by SraJMcGin

calculus-can someone please help me with this ques
Given the following polynomial f(x)=(x-1)(x-5), find A.the zeros and the multiplicity of each one b. where the graph crosses or touches the x-axis c.the number of turning points d. the end behavior Please show work.
Monday, December 17, 2012 at 6:13pm by Ladybug--Please help!!!!

Organic Chemistry
I think i solve my own question, not sure if I am correct, someone please verify it for me. Since 4.24g/100ml then .424g/10ml, thus 0.5-.424g (dissociated)=.076g (lost during heating). 0.3g/100ml is 0.03g/10ml at 0c during cooling Then 0.424g-0.03g=0.394g thus, this is the ...
Monday, February 14, 2011 at 1:31am by PEd

Calculus help me please!
Find the value of k so that f(x)= {3x^2+kx+4 if x<0 and 2sqrt(x+4) if x >or equal to 0} is differentiable at x=0 can someone please provide help!!!
Sunday, November 27, 2011 at 2:29pm by kali mata

calculus
please help! Find an equation of the tangent line to the curve at the point (-1, 1). y = 5x3 - 6x. y=? ...............i keep getting y=x+2 and its wrong. can someone please help?
Tuesday, January 25, 2011 at 10:30pm by nic

calculus
Verify the identity: (tanx+1)/(secx+cscx) = sinx
Wednesday, May 2, 2012 at 11:46am by ASH

calculus
Verify the Identity: (Tanx + 1)/(secx + cscx) = sinx
Tuesday, May 1, 2012 at 1:34pm by CLF

pre calculus
verify functions f and g are inverses of each other by showing that f(g(x)) = x and g(f(x)) = x. f(x)= 5/(2 -x) g (x) = 2 - 5/x
Wednesday, December 21, 2011 at 10:42am by anon

algebra II
How do you verify inverses? the question is y=3x-3... we know how to make an inverse but how do you verify it using composition?
Wednesday, February 15, 2012 at 8:54pm by nicole and brian!

calculus-can someone please help me with this ques
Find all zeros of the following polynomial. Write the polynomial in factored form. f(x)=x^3-3x^2+16x-48 I put: x^2(x-3)+16(x=3) (x-3)(x^2+16) For zeros: x-3=0 x=0 **My teacher stated check the equation solution again. What is the value for x and hence what is the zero for the ...
Thursday, December 27, 2012 at 5:08pm by allison--Please help!!

calculus
can someone please asap
Saturday, May 4, 2013 at 2:48pm by akash

pre calculus
Can someone please help me with this???????
Thursday, December 15, 2011 at 7:40pm by anon

Algebra
Would someone please verify my answer for the solution set of (x+20)(x -10)(x+11)>0, {x|(-20,-11)<x<(10,infinity sign)}
Sunday, May 30, 2010 at 11:07am by Daniel

Chemistry
I tried to solve it..can someone verify if 50 total molecule is the correct answer?
Friday, October 31, 2008 at 3:36am by Songyi

Chemistry
okay can someone verify these values The partial pressure of each gas is 1.946, 2.3345, 6.54478
Tuesday, September 23, 2008 at 1:28am by Sarah

Algebra
Would someone please verify my answer for the solution set of (x+20)(x -10)(x+11)>0, {x|(-20,-11)<x<(10, ‡)}
Sunday, May 30, 2010 at 11:07am by Daniel

Pre Calculus
Verify the identity: cos x + sin x tan x = sec x.
Wednesday, March 23, 2011 at 11:40am by Kim

calculus
find the complex zeros of the polynomial function. write f in factored form. f(x)=x^3-10x^2+42x-72 please show work.
Saturday, December 22, 2012 at 10:54pm by Jimmy-can someone please help

adult education
I need help with someone to go over my eassy with me can someone please help me.This is my first time using this site so I don't know how it really works SOMEONE PLEASE HELP ME!!
Wednesday, October 27, 2010 at 5:02pm by jennifer

Calculus
Verify please and thank you~ Does the line (x-7)/3=(y+8)/6=(z+4)/5 and the point P(10,-2,1) determine a plane? Answer: Yes, it is a plane because when I substituted the point P(10,-2,1) into the equation, I got the coordinates (1,1,1) If the coordinate became to be (0,0,0) ...
Sunday, April 8, 2012 at 1:47pm by Jenny

Chemistry
Sorry for double posting but I got a solution of [CN-] = 0.0036 M. Can someone verify if that is right.
Monday, August 10, 2009 at 10:04am by ChemHurts

SCI 275
If you would post your answer, someone will correct/verify it. I don't think anyone will be willing to write it for you.
Saturday, November 24, 2007 at 10:22pm by Student

Calculus and vectors
Verify please and thank you~ 1. Does the line (x-7)/3=(y+8)/6=(z+4)/5 and the point P(10,-2,1) determine a plane? Answer: Yes, it is a plane because when I substituted the point P(10,-2,1) into the equation, I got the coordinates (1,1,1) If the coordinate became to be (0,0,0) ...
Monday, April 9, 2012 at 8:22pm by Antia

calculus
verify that y=C1e^2x + C2e^-3 is a solution of the differential equation y''+y'-6y=0
Tuesday, April 10, 2012 at 11:35am by mari

calculus
verify the Intermediate Value Theorem if F(x)=squre root of x+1 and the interval is [3,24].
Friday, December 9, 2011 at 8:02pm by piyatida

Calculus
Givenƒ(x) = e^x, verify that lim (e^x+h-e^h) / h = e^x h->O = and explain how this illustrates that ƒ′(x) = ln e • ƒ(x) = ƒ(x)
Tuesday, July 15, 2008 at 12:30pm by Vanessa

Calculus and vectors-Help~David
Rectangular prism is defined by vectors (2,0,0)(0,9,5) and (0,0,3). Find the volume. I have done this so far, would anyone please verify this. (2,0,0)(0,9,6) (0-2, 9-0, 6-0) =(-2,9,6) (-2,9,6)(0,0,3) =(2,-9,-3) (2)(-9)(-3)=54 cm^3 Therefore volume is 54 cm^3
Thursday, March 22, 2012 at 11:25pm by Jake

Math Challenge Check
Excuse me? The answer was posted, with a detailed description of how it was derived, and you want someone else to verify it? Puhhhlleeeeze!
Tuesday, November 1, 2011 at 7:24pm by Steve

Calculus
i am still lost can someone please explain
Monday, January 11, 2010 at 8:29pm by hardik

Calculus
Can someone please tell me how to derive V=4/3pi(r)^3 to get x^2+y^2=r^2?
Sunday, March 23, 2008 at 1:31am by Jess

Calculus - Verify?
Find the slope of the tangent line to the curve (a lemniscate) 2(x^2+y^2)^2 = 25(x^2-y^2) it is at pt (3,1)
Sunday, February 20, 2011 at 11:50am by Aric

calculus-can someone please help me with this ques
Given the following polynomial find, a. zeros and the multiplicity of each b. number of turning points c. end behavior f(x)=(x-1)(x-5) a. the multiplicity of (x-1)(x-5) x=1 and x=5----is this correct b. number of turning points I had f(x)-0 at turning points BUT my teacher ...
Tuesday, December 18, 2012 at 6:44pm by Jimmy-can someone please help

calculus
First we calculate f'(x)=4*((8-2*x)/(2*sqrt((8-x)*x))+1) Equate it to zero and solve for x f(x)=0 => ((8-2x)/(2sqrt((8-x)x))+1)=0 (8-2x)/(2sqrt((8-x)x))=-1 (8-2x)=-2sqrt((8-x)x) Square both sides: (8-2x)^2=4(8-x)*x) Solve the quadratic to get x= 4±2&...
Friday, March 4, 2011 at 1:48pm by MathMate

Calculus
int x^9*(sin(x^5)) Can someone please explain me how to do this integral?
Sunday, September 4, 2011 at 5:28pm by Carole

Calculus
int x^9*(sin(x^5)) Can someone please explain me how to do this integral?
Sunday, September 4, 2011 at 1:45pm by Carole

Pre calculus
f(x)={ x+5, if x>0 3, if x<=0 Graph the function can someone please help
Monday, July 4, 2011 at 3:49pm by HELP

Repost- Calculus; someone please help
is the max. area 3.6945? thanks.
Wednesday, February 9, 2011 at 10:18pm by Amanda E.

Honors Pre-Calculus
Can you or someone else please clarify your explanation. Thank you.
Tuesday, September 11, 2007 at 9:04pm by Anonymous

Pre calculus
Verify Sinx-sinxcos^2x =sin^3x Need every step!!!
Sunday, February 10, 2013 at 7:46pm by Kristen

Calculus
If f(x)=cos(x)*e^(sin(x)) then f'(x) = -1.82747... To find the problem you have, I suggest you verify if f(x) is as defined above, and what did you get for f'(x)?
Friday, December 2, 2011 at 9:23pm by MathMate

pre cal
can someone please show me how to verify this identity? (sec x/csc x minus cot x) minus (sec x/csc x + cot x)= 2 csc x
Thursday, May 12, 2011 at 2:22am by Vania

calculus-can someone please help me with this ques
x-3 = 0 means x = 0 so the polynomial is zero at x = 3 also at - 4 i and at + 4 i
Thursday, December 27, 2012 at 5:08pm by Damon

calculus-can someone please help me with this ques
a- x-1 and x-5 both have odd mult. of 1 b- (1,0) and (5,0)
Monday, December 17, 2012 at 6:13pm by Rachel

Calculus II
please someone help this is due tomorrow and i don't know where to start with solving this!
Wednesday, October 17, 2012 at 1:43pm by Lauren

Repost- Calculus; someone please help
Yes it is the right equation. Good job!
Wednesday, February 9, 2011 at 10:18pm by Kate

Calculus
Apparently it diverges to negative infinity. Can someone please explain to me why?
Friday, October 22, 2010 at 8:34pm by Hannah

calculus
Iamhaving a really hard time trying to understand this question. Can someone please show me how to work this question. Give the following polynomial, find a. the zeros and the multiplicity of each b. where the graph crosses or touches the x-axis c. number of turning points d. ...
Tuesday, December 18, 2012 at 11:55am by Sammy-Please,please help!!!!

calculus
find the sum. use the summation capabilities of a graphing utility to verify your result. 5 Sigma (3a) k=2 ??
Thursday, April 18, 2013 at 1:18pm by jessica

Calculus AB (AP)
Hi, I have a calculus test tomorrow and I understand how to complete all of the problems, but I am unsure behind the reasoning of taking two derivatives. Can someone please explain the following: 1. g(x)=e^(f(x)) g'(x)=e^(f(x))f'(x) 2. f(x)=Integral from 0 to 3x of the...
Wednesday, April 13, 2011 at 2:47am by Jake

calculus-can someone please help me with this ques
I have two questions if someone can PLEASE help. 1.solve the equation in the real number system. x^4+11x^3+24x^2-23x+35=0 **Please show work** 2.Use the remainder theorem to find the remainder. When f(x)is divided by x-3. Then use the factor theorem to determine whether x-3 is...
Sunday, December 30, 2012 at 5:12am by Jennifer

calculus--please helpp
if the line 3x-4y=0 is tangent in hte first quadrant to the curve y=x^3+k, find k. all i know is that its related to finding a derivative and i m basically completely lost....can please someone provide me some help?????
Friday, October 14, 2011 at 1:54pm by krishna

Math SOmeone please please help
Find the derivative of the function. g(u) = (5+u^2)^5(3-9u^2)^8 Could someone please explain the steps that would lead me to the answer? I'm completely stuck.
Monday, February 21, 2011 at 11:15pm by Anonymous

calculus
Determine the quadratic function f, whose graph is given. **The graph given is (0,-2) and (3,-11) The vertex is (3,11) and the y-intercept is -2 So, f(x)= **Please help me understand how to do this question. Could you please show work?**
Tuesday, December 18, 2012 at 4:50pm by Jimmy-can someone please help

Calculus
Verify that the volume of a cylinder of radius r and height h is given be the formula v= pi*r^2*h using cylindrical shell method.
Thursday, March 18, 2010 at 6:56am by drew

math
Do 3x^2-7x+2=0 verify that the sum of the solution is -b/a and verify that the product of the solution is c/a
Sunday, April 8, 2012 at 5:38pm by Emma

Calculus
Verify this equation, y = 4^x-1 You need parentheses. Is it, y = 4^(x - 1)? Or, y = 4^(x) - 1? Or ? Are you Jamal? Please don't change screen names. And, which is it? In this problem, rotation is about the x-axis. In the 'Jamal' problem, rotation is about the y-axis.
Sunday, January 30, 2011 at 1:42pm by helper

Algebra2 Verify Identity
Verify the Identity: csc(x)+sec(x)/sin(x)+cos(x)=cot(x)+tan(x) the left side of the equation is all one term.
Wednesday, June 2, 2010 at 6:10pm by wruck

science
I believe the noble gas group or Group O. Hopefully someone can verify that. I apologize if that is wrong.
Wednesday, April 9, 2008 at 3:37pm by mtd

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