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Calculus (can someone please verify this?)

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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?

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.

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?

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?

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...

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?

Pre-Calculus
Can someone please help me with this problem? De Moivre’s theorem states, “If z = r(cos u + i sin u), then zn = rn(cos nu + i sin nu).” • Verify de Moivre’s theorem for n = 2. a. Provide a correct proof that includes written justification for each step.

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...

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

algebra
Could someone please verify if this rational equation is undefined? I think that it is: w/2 - 2/w = 0

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...

Calculus Help Please!!!
Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answers to three decimal places.) ln(1 + x) ≈ x Y1= I ln(1+x)-x I Y2= 0.1 ...

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 ...

calculus
How can we verify area of square and rectangle by calculus ?

Science-HELP?
A map of Florida is an example of a(n) ________. *I researched this a little bit and I thought it might be peninsula. Can someone verify this for me please? There aren't any choices either.

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 ...

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...

Pre Calculus
(cotx)(cscx)+secx=(csc^2x)(secx) Please help to verify this trigonometric identity.

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. 3.It has ...

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 don't know how to find the slope of x=1

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

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

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.

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 confident that I correctly found ...

calculus
Can someone please tell me what the word "WHOLE" AND "IRRATIONAL" MEAN IN CALCULUS? THANKS

calculus
Verify the identity: arctanx + arctan(1/x)=∏/2 using calculus theory. (Hint: Differentiate the left hand side of the identity)

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 explain ...

Chemistry
Please help verify my answer. Not confident it is right: please verify my answer: Consider the following REDOX reaction: Zn(s) + Pb+2(aq) �� Zn+2(aq) + Pb(s) a. Write the oxidation and reduction half-cell reactions. Zn(s) + Pb+2(aq) �� Zn+2(aq) + Pb...

Chemistry
Please help verify my answer. Not confident it is right: please verify my answer: Consider the following REDOX reaction: Zn(s) + Pb+2(aq) �� Zn+2(aq) + Pb(s) a. Write the oxidation and reduction half-cell reactions. Zn(s) + Pb+2(aq) �� Zn+2(aq) + Pb...

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,...

Pre Calculus
(secx)/(tanx)+(cscx)/(cotx)=secx+cscx Please help me verify this trigonometric identity.

linear algebra urgent
For the orthogonal matrix A = 1/sqrt(2) -1/sqrt(2) -1/(sqrt(2)) -1/sqrt(2) verify that (Ax,Ay)=(x,y) for any vectors x and y in R2. Can someone please explain this

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

calculus
Verify Clairaut's theorem for u=ln(x^(2)-y^(2)).

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(s...

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...

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) ...

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)

Calculus AB
Verify if the given equations are solutions to the differential equation. dy/dt=k(y-a) i) y=1-ae^(kt) ii) y=a+Ce^(kt)

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

calculus
verify that y=C1e^2x + C2e^-3 is a solution of the differential equation y''+y'-6y=0

calculus
Verify the Identity: (Tanx + 1)/(secx + cscx) = sinx

calculus
Verify the identity: (tanx+1)/(secx+cscx) = sinx

Calculus
Givenƒ(x) = ex, verify that lim h->0 (e^x+h - e^h)/h + e^x and explain how this illustrates that ƒ′(x) = ln e • ƒ(x) = ƒ(x)

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) ...

Calculus Help Please!!!
Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answers to three decimal places.) ln(1 + x) ≈ x xE

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!

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?

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)

Pre Calculus
Verify the identity: cos x + sin x tan x = sec x.

calculus
verify the Intermediate Value Theorem if F(x)=squre root of x+1 and the interval is [3,24].

Calculus
Verify this question 1. Determine lim as x->3 (3x-8)/(4x-12), if it exists. (3(3)-8)/(4(3)-12) =1/0 Therefore it doesn't limit doesn't.

pre - CALCULUS
Verify the identity. Show your work. (1 + tan2u)(1 - sin2u) = 1

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!!!

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

Calculus Help Please!!!
Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answers to three decimal places.) fourth root of (1 + 2x)≈ 1 + (1/2)x

Pre calculus
Verify Sinx-sinxcos^2x =sin^3x Need every step!!!

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?

precalculus
Solve the system of equations at the right by the method of substitution. Verify your results by using a graphing utility. x2+y2-4x+6y-5=0, x+y+5=0 answer: x=-y-5 (-y-5)2+y2-4(-y-5)2+6y-5=0 y=√5-5, y=-5-√5 x+√5-5+5=0 x=-√5 x-5-√5+5=0 x=√5 y=√5-5, y=-5-√5, x...

math
Verify that the function satisfies the three hypotheses of Rolle's Theorem on the given interval. Then find all numbers c that satisfy the conclusion of Rolle's Theorem. (Enter your answers as a comma-separated list.) f(x) = 5 − 6x + 3x2, [0, 2] can someone please ...

Business
Can someone verify which of the statement is most accurate regarding reinforcement theory My ans is A

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

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

calculus
can someone please help me with these 3 questions: 1) Evaluate the limit. lim_(x->infinity) (ln(ln(4 x)))/(4 x) 2)Find y ' and y ". y= ln(5 x)/x^7 3)y =(arctan)(x - sqrt(1+x^2)) for this question i got y = -1/(2(1+x^2))which was wrong. Please and thank you!

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 square ...

calculus
find the sum. use the summation capabilities of a graphing utility to verify your result. 5 Sigma (3a) k=2 ??

introduction to business
The rate the feds charges members banks for short term loans is called: A.reserve requirement b. discount rate c. margin rate d. federal rate My answer is B Discount rate can someone please verify...thanks in advance

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...

Math Homework Help
Hello! I'm having problems with these two math problems. I've tried to solve them but I got nowhere. If someone could please help me, that would great! Thanks again! :) Directions: Verify the identity for each problem. 1.) cot^2y(sec^2-y-1)=1 2.) cosx+sin xtan x=sec x

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.

Pre-Calculus/Trigonometry
Solve the following system of equations algebraically. Verify your solution by using matrices. 3x-y=0 5x+2y=22

Calculus
Can someone please tell me how to derive V=4/3pi(r)^3 to get x^2+y^2=r^2?

Pre calculus
f(x)={ x+5, if x>0 3, if x<=0 Graph the function can someone please help

Pre-Calculus/Trigonometry
Solve the following system of equations algebraically. Verify the solution by using matrices. 8x-2y=5 -12x+3y=7

Pre-Calculus/Calculus
I am too embarassed to ask this Calculus (really pre-calculus) question in tutoring, because I know I should know. Is the inverse of f(x)=3x-1 actually f(x)=1/3x+1? How do I find it? What if it asks the same equation replaced with f to the -1 power (x)? I think I know how the ...

Calculus
can someone please prove the difference rule to me? d/dx[f(x)-g(x)]=d/dx f(x)- d/dx g(x) plz help

Calculus
int x^9*(sin(x^5)) Can someone please explain me how to do this integral?

Calculus
int x^9*(sin(x^5)) Can someone please explain me how to do this integral?

Calculus
please solve it let f be the function defined over { 0 , ∞ ) as ∫ f(x) = x(ln(x)-1)^2 for x>0 and let (c) be its representative curve , we admit that f is continous at x=0 a ) determine lim f(x) / x as x approaching 0 b) find lim f(x) as x approaching infinity ...

calculus--please helpp
if the line 3x-4y=0 is tangent in the 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?????

Management
Can someone verify my answer please? during a change-planning phase, the change agent communicates information gathered through diagnosis directly to the effected people. this process is called, A. direct feedback B. team building C. evaluation D. sensitivity training My ...

Algebra
Can someone verify if my answers are correct? Solve. 1/x+6-1/x-6 My answer is: -12/x^2-36 Solve. 1/x+5+2=5/x+5 My answer is: -3 Subtract. Express your answer in simplest form. 13x/30-4x/15 My answer is: x/6 Can someone verify if my answers are correct? Solve. 1/x+6-1/x-6 My ...

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!!

Calculus AB
Could someone please help me with this? Calculate the instantaneous rate of change of f <note: f(x)=(x-6)/(x+6)> at x=6.

math
Solve 4a2 + 25 = –20a by factoring. Verify your solution Solve and verify the following equation: 13x2 + 35x + 21 = –12x2 – 25x – 15

Chemistry
Rank the following three elements in order of increasing Young'sModulus: Ge, Sn, Si. My answer is as follows: Sn<Ge<Si. I am not sure if this correct. Can someone verify. Thanks.

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.

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**

English
To look with admiration at someone or something is to ______ but to look at something very closely is to _____. If we seek to verify something, we are seeking to find out if what we heard _____. If you doubt someone's veracity, you doubt that he or she is ________

Teacherd aide
3.   Which of the following techniques to arouse curiosity would work best with junior high students? A. Set up a curiosity corner. B. Use a "feelie" box. C. Use a teaser to introduce the topic. D. Set up a discovery learning center. I believe it is letter D, but I'm not...

calculus
Can someone please help me find the arc length of this curve? x = 3y^(4/3) - 3/32y^(2/3) y is between -64 and 64

Calculus
Can someone please tell me how to find the following integral? cos^4(2q)*sin(2q) dq

Pre-Calculus
Can someone please explain how eccentricity can be used to classify conics.

Calculus
(b) Find a solution of the initial-value problem. (Hint: First verify that all members of the family y = 4/x + C are solutions of the given equation.) y' = −1/4y^2 y(0) = 0.25

Pre Calculus
Verify the following identity 2 tan x/1+tan^2 x = sin 2x

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.

URGENT! Last calculus question!
Hey! So, I was wondering if someone could answer this. I am mad studying for my exam and I still have a few questions left that I just don't have time to answer, and the assignment is due tomorrow. Thanks and here is the question: Use calculus and algebraic methods to do a ...

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

calculus
verify the following identity cos(x+y) + cos(x-y)=2cosxcosy

calculus
f(x)=(9x^2–8)^6(4x^2–5)^11 Find f'(x) I got (9x^2-8)^6 *11(4x^2-3)^10*8x+((4x^2-3)^11)6(9x^2-8)^5(18x) but im doing something wrong can someone check my work please

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