Tuesday

February 9, 2016
Total # Posts: 79

**physics**

a ball bounces to 60% of its original height.what fraction of its mechanical energy is lost in each bouces?where does this energy go?
*January 21, 2016*

**Calculus**

Find the first partial derivatives and evaluate each at the given point. Function w = 2x^2y − 6xyz + 10yz^2 Point (2, 5, −3) wx(2, 5, −3) = wy(2, 5, −3) = wz(2, 5, −3) =
*November 17, 2015*

**Calculus**

A pharmaceutical corporation has two locations that produce the same over-the-counter medicine. If x1 and x2 are the numbers of units produced at location 1 and location 2, respectively, then the total revenue for the product is given by R = 700x1 + 700x2 − 2x1^2 −...
*November 17, 2015*

**Calculus**

Find the area of the unbounded shaded region. Y= 7/ SQRT (7-X)
*November 12, 2015*

**Calculus**

A professional athlete signs a four-year contract in which the earnings can be modeled by c = 300,000 + 750,000t, where t represents the year. (a) Find the actual value of the athlete's contract. =7200000 (b) Assuming an annual inflation rate of 4%, what is the present ...
*November 12, 2015*

**Calculus**

The marginal cost of a product is modeled by dC/dx =12/Cube root (12x+5) where x is the number of units. When x = 13, C = 160. (a) Find the cost function. (Round your constant term to two decimal places.) C= Ans- 3/2(12x+5)^2/3 +115.61 ???? (b) Find the cost of producing 70 ...
*November 10, 2015*

**calculus**

y = x^2 − 9x + 29/x − 5 relative maximum (x, y) = relative minimum (x, y) =
*October 10, 2015*

**calculus**

Identify any intercepts, relative extrema, points of inflection, and asymptotes. (If an answer does not exist, enter DNE.) y = x^3 + 3x^2 + 3x + 2 x-intercept (x, y) = y-intercept (x, y) = relative maximum (x, y) = relative minimum (x, y) = point of inflection (x, y) = ...
*October 10, 2015*

**calculus**

Identify any intercepts, relative extrema, points of inflection, and asymptotes. y = 4x^2 − 24x + 34 X-intercept ? (x, y) (smaller x-value) (x, y) (larger x-value) relative minimum (x, y)
*October 10, 2015*

**math- 165 calculas**

so i got x=9 but this is not correct
*October 6, 2015*

**math- 165 calculas**

An open box is to be made from a eighteen-inch by eighteen-inch square piece of material by cutting equal squares from the corners and turning up the sides (see figure). Find the volume of the largest box that can be made. figure ( a box and one side is 18-2x) v= ? in^3
*October 6, 2015*

**math- 165 calculas**

Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = 5x^2 + 1/ 7x^3 − 2x^2 + 5
*October 6, 2015*

**math- 165 calculas**

Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = x^3 − 3x^2 + 5x + 1/ x^2 − 5x + 3
*October 6, 2015*

**PHYSICS**

Why are cars made with bumpers that can be pushed in during a crash?
*September 2, 2015*

**math**

140400
*July 18, 2015*

**Physics**

Two forces are applied to a car in an effort to accelerate it, as shown below. The first force, F1 = 328 N, is applied at an angle α = 35° to the forward dashed line. The second force, F2 = 464 N, is applied at an angle β = 13° to the forward dashed line. (a...
*November 2, 2014*

**science**

a ladder is at rest with its upper end against a wall and the lower end on the ground .Is the ladder more likely to slip,when a man stands on it at the bottom or at the top?gove reason.
*October 23, 2014*

**mathematics **

A rectangular house with 60*50 feet dimension has a rectangular wall surrounding the garden around the house.the area of garden is same as area of house.so how far is wall from the house?
*June 30, 2014*

**Maths**

There is a square garden whose area is 425.5969sq.m.If from every side the length is decreased by 0.03m,then what will be the possible length of new square garden.
*June 25, 2014*

**Maths**

I have a three digit number such that the sum of the cubes of each digit number containing the same digits. Find my number
*June 25, 2014*

**poetry**

Poem. DayBreak Q.1 Who does the wind address to? Q2. "The night is gone,"What does the. world 'night' refer to ? Q3. What does the poem describe? Q4. "Not yet! In quiet-lie".What is the meaning of this line? Q5. What does the title of the poem ...
*May 27, 2014*

**Probability**

2) 0.4096
*March 7, 2014*

**S.ST**

Differentiate between physical and human capital.
*June 7, 2013*

**maths**

how, kaise aaya...
*June 4, 2013*

**maths**

kaise aaya...
*June 4, 2013*

**calculus**

can someone please asap
*May 4, 2013*

**calculus**

Let x = 1 and Δx = 0.01. Find Δy. (Round your answer to five decimal places.) f(x) = x/x^2 + 5
*May 4, 2013*

**math calculus**

0.04938
*May 4, 2013*

**math calculus**

The concentration C (in milligrams per milliliter) of a drug in a patient's bloodstream t hours after injection into muscle tissue is modeled by C = 3t/26 + t^3 Use differentials to approximate the change in the concentration when t changes from t = 1 to t = 1.5. (Round ...
*May 4, 2013*

**math calculus**

The revenue R for a company selling x units is R = 700x − 0.1^x2. (a) Use differentials to approximate the change in revenue as the sales increase from 2900 units to 3000 units. dR = $ (b) Compare this with the actual change in revenue. ΔR = $
*May 4, 2013*

**physics**

three point charges each of magnitude +q are located at the vertices of an equilateral triangle of side L. what magnitude of charge should be placed at the centroid of triangle to keep all the three charges in equilibrium?
*April 28, 2013*

**math calculus**

Find the absolute extrema of the function on the closed interval. Use a graphing utility to verify your results. (Round your answers to two decimal places. If an answer does not exist, enter DNE.) g(x) = (x^2 − 4)^2/3, [−5, 3] find absolute maximum (x, y) = ...
*March 31, 2013*

**math**

Find the absolute extrema of the function on the closed interval. Use a graphing utility to verify your results. (Round your answers to two decimal places. If an answer does not exist, enter DNE.) g(x) = (x^2 − 4)^2/3, [−5, 3]
*March 31, 2013*

**calculus**

Find dy/dx. 7xy^3 − x^2y = 6
*March 22, 2013*

**calculus**

Find dy/dx. y^3 = 8x^3 + 4x
*March 22, 2013*

**calculus**

Find the slope of the graph of the function at the given point. (If an answer is undefined, enter UNDEFINED.) x^3 + y^3 = 14xy, (7, 7)
*March 22, 2013*

**business communication**

Select a company of your choice in a sector that you would like to work in. Imagine that you have to make a brief presentation on this company to business school students. Develop:-a) A general and specific statement of purpose.b) The key idea.c) Your style of delivery.
*October 1, 2012*

**Physics**

Light of wavelength 550 nm in vacuum passes through a piece of crown glass of refractive index of 1.52. Find the velocity and frequency of light in crown glass.
*March 9, 2012*

**arithmetic**

In an AP the first term is 2 and the sum of the first five terms is one fourth of the sum of the next five terms. Show that the 20th term is -112.
*February 28, 2012*

**12th Grade Calculus **

how will you multiply y = ae^3x + be^-2x with dy/dx = 3ae^3x - 2be^-2x
*January 22, 2012*

**Calculus 12**

im solving for this log problem. The question is wht i ve asked
*January 21, 2012*

**Calculus 12**

Simple query. plz tell me in brief. How will u slove this -3 log 3 + log 2 + 2 log 4 Plz explain
*January 21, 2012*

**Class 12th Application of Derivatives**

Find a point on the parabola y = (x-4)^2, where the tangent is parallel to the chord joining (4,0) and (5,1). Solve this question using Lagrange's theorem. Answer is (9/2,1/4)
*July 6, 2011*

**Calculus : Derivative**

If tan^-1(x^2-y^2/x^2+y^2) = a, prove that dy/dx = x(1 - tan a)/y(1 + tan a) Please solve!!!
*June 15, 2011*

**Calculus : Derivative**

If y = x sin(a+y), prove that dy/dx = sin^2(a+y)/sin(a+y)-ycos(a+y) Please solve it
*June 15, 2011*

**Calculus : Derivative**

If xy log(x+y) = 1, prove that dy/dx = -y(x^2y +x+ y)/x(xy^2 + x + y)
*June 15, 2011*

**Class 12th Calculus**

If y = e^x cosx, prove that dy/dx sqrt(2) e^x . cos(x+ pie/4)
*June 10, 2011*

**Class 12th Calculus**

If y= (x-1)log(x-1)-(x+1)log(x+1), prove that dy/dx = log(x-1/1+x)
*June 10, 2011*

**Class 12th : Calculus**

If y = sqrt(x-1)+sqrt(x+1),prove that sqrt(x^2-1)dy/dx=1y/2
*June 9, 2011*

**CIVICS**

DEFINE THESE TERMS (I)AP AS THEID (II)CLAUSE (III) PREAMBLE
*May 15, 2011*

**Quadratic Equations**

any other easy method
*April 14, 2011*

**Quadratic Equations**

Can anybody tell me step wise step how to solve this quadratic equation? x^3-3x^2+4=0 Please tell me step wise step as i haven't solved such type of equations before. Thank You
*April 14, 2011*

**Maths: Algebra Matrices Class 12th**

matrix{{0, 1, -1}, {2, 1, 3}, {1, 1, 1}} matrix{{1, -1, x}} matrix{{0}, {1}, {1}}=0 Find the value of x Don't give me the direct answer. Please tell me how to go about this. Draw in your notebook and then solve
*April 11, 2011*

**math**

from the top of a cliff 50 m high the angle of depression of the top and bottom of tower are observed to be 30 and 45 degree resp. find h of tower ?
*December 18, 2010*

**calculus**

A particle is moving along the curve y = 2 √{3 x + 7}. As the particle passes through the point (3, 8), its x-coordinate increases at a rate of 4 units per second. Find the rate of change of the distance from the particle to the origin at this instant.
*October 26, 2010*

**11th Grade Physics**

A stone falls from a tower and travels 100m in the last second before it reaches the ground. Find the height of the tower
*August 5, 2010*

**11th grade Physics**

My answer please!!!
*July 24, 2010*

**11th Grade Physics**

I want the answer wht is this all
*July 22, 2010*

**Grade 11th Physics**

then how to do it!!!
*July 9, 2010*

**Grade 11th Physics**

A bus starts from rest and accelerates uniformly for 20 seconds to a speed of 18 km/h. It then moves with a uniform velocity and it is finally brought to rest in 100 meteres with a constant retardation. If the total distance travelled is 0.5km. Find the accelration, ...
*July 9, 2010*

**Grade 11th Physics**

Sir my teacher solved it!!!
*July 8, 2010*

**Grade 11th Maths**

This problem is related to Chapter-Sets. Please solve the question using x method. x method means x ∈ A ∩ B Q. If AUB=Ø, then prove that A=Ø,B=Ø
*June 29, 2010*

**Grade 11th Maths**

This problem is related to Chapter-Sets. Please solve the question using x method. x method means x ∈ A ∩ B Q. If A-B=A then show that A∩B=Ø
*June 29, 2010*

**Grade 11th Maths**

This problem is related to Chapter-Sets. Please solve the question using x method. x method means x ∈ A ∩ B Q. If A⊂B, then prove that B'⊂A'
*June 29, 2010*

**Grade 11th Maths**

This problem is related to Chapter-Sets. Please solve the question using x method. x method means x ∈ A ∩ B Q. For any sets A and B. Prove that A∩B⊂A and A∩B⊂B.
*June 29, 2010*

**Grade 11th Chemistry**

How many molecules of water and oxygen atoms are present in 0.9g of Water. this numerical is based on Mole Concept. Kindly solve it!!!
*June 28, 2010*

**11th Grade Physics**

I want two examples based upon law of conservation of charge i know the definition just want two examples!!!
*June 25, 2010*

**11th grade**

f(x)=g(x) n wht answer will come = 18 I hope u got it!!!
*June 15, 2010*

**11th Grade Maths **

Thank You but i did before you anyways thx
*May 12, 2010*

**11th Grade Maths **

I'm waiting for my answer
*May 12, 2010*

**11th Grade Maths **

The difference between the two acute angles of a right- angled triangle is 2 π/5 radians. Express the angles in degrees. I’ve multipled 2 π/5 * 180/ π and got the result 72 degree But the answer is 81 degree and 9 degree. Please explain me!!!
*May 12, 2010*

**Chemistry 11th Grade**

I did without ur instructions. And got the answer. And i Know the Law of Multipe Proportion
*May 2, 2010*

**Chemistry**

I want a software that can make carbon bonds like C-C. It can be made by paint also but a software is required to make tougher bonds. Tell me the website to download the carbon bonding software
*May 2, 2009*

**Chemistry**

Tell me a website from where i can get full information regarding IUPAC nomenclature of organic chemistry. It's rules, inforamtion everything.
*April 8, 2009*

**Physics**

What is the dimesnional formula of length, mass, volume, time, radius, force, frequency of evolution, velocity, gravity, tension
*April 5, 2009*

**Physics**

Escape velocity from the surface of earth depends upon mass of the earth and radius of the earth. Find the realtion between these quantities dimensionely.
*April 5, 2009*

**10th Maths ch-polynomials**

Obtain all zeros of f(x)= x3 + 13x2 + 32x + 20, if one of it's zero is -2
*October 15, 2008*

**Geometry**

Ab||cd i.e. They are similar so u can fk them
*March 4, 2007*

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