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December 20, 2014

Posts by James


Total # Posts: 1,893

Calculus 2
thanks!
November 3, 2012

Calculus 2
Sorry it's *(-5)^n and I don't think its absolutely convergent, am I correct?
November 3, 2012

Calculus 2
n=1 series to infinity (-5^n)/n^3 does it absolutely converge, diverge or conditionally converge. Would I be applying the ratio test?
November 3, 2012

math
whats the angle of one end of a 13 ft.by2 by 4 ,,2ft.high and other end level?
November 3, 2012

Computer Science
Question #1. 1. Say that L is regular over 0, 1. Is the set, {x|x = 0y,y ∈L } also regular? 2. For two regular languages (a) Is M*L=L*M for any alphabet? (b) Is it true if the alphabet is only {0,1}? (c) Is it true if the alphabet is only {0}? 3. If L is regular, is the ...
November 3, 2012

Physics
You dont have to give me the answer but explaining a way to get there would help
November 2, 2012

Physics
As part of a physics experiment, you stand on a bathroom scale in an elevator. Though your normal weight is 690 N, the scale at the moment reads 588 N. (a) Is the acceleration of the elevator upward, downward, or zero? (b) Calculate the magnitude of the elevator's ...
November 2, 2012

Physics
h=1.5 d=2
November 1, 2012

Math
How do you round 0.0694 to the greatest place?
November 1, 2012

Algebra
A clothing company makes two basic products- shirts and pants. The company has 50 labor hours per day in the cutting department and 70 hours available in the sewing department. It takes 12 minutes to cut a shirt and 15 minutes to sew it. It takes 13 minutes to cut pants and 18...
November 1, 2012

college math
two bakeries produce three types of cookies, chocolate chip, sugar, and peanut butter. the cookies are produced in batches containing some of each type of cookie. the cooks will not break up a batch, so you must buy an entire batch of cookies if you want any cookies. mrs. ...
October 31, 2012

algebra
two bakeries produce three types of cookies, chocolate chip, sugar, and peanut butter. the cookies are produced in batches containing some of each type of cookie. the cooks will not break up a batch, so you must buy an entire batch of cookies if you want any cookies. mrs. ...
October 31, 2012

Calculus 2
The question is: n=0 E to infinity 4+sin(n)/3^n Does it converge or diverge? i'm doing this hw problem and I believe it converges according to other example? Is this the case?
October 30, 2012

Calculus 2
Does Series n=1 to infinity 1/2n+1 converge or diverge? I'm thinking it converges, because p would be < 1 right? I'm a little confused.
October 29, 2012

Physics
Just got the answer a little bit ago. Treat it as a roller coaster question. It's work conservation so the total work done by gravity is the total work in the system. This causes the sphere to move forward as well as to rotate. By playing around with the kinetic and ...
October 26, 2012

physics
If a race car completes a 4mi oval track in 73.2s, what is the average speed in units of mi/h?
October 23, 2012

physics
If a race car completes a 4mi oval track in 73.2s, what is the average speed in units of mi/h?
October 23, 2012

physics
If a race car completes a 4mi oval track in 73.2s, what is the average speed in units of mi/h?
October 23, 2012

math
both are correct, just use a claculator
October 23, 2012

Physical Science
A block of ice at 0^\circ {\rm C} is dropped from a height that causes it to completely melt upon impact. Assume that there is no air resistance and that all the energy goes into melting the ice. What is the height necessary for this to occur.
October 18, 2012

Calculus
I got the dz/dy derivative to be: cos(x-y)/sin(x-y) I got the d^2z/dydx derivative to be: -(sin(x-y))^2 - (cos(x-y))^2/ (sin(x-y))^4
October 16, 2012

Calculus
Find the d^3z/dydx^2 partial derivative of: ln[sin(x-y)] The answer is supposed to be 1/2; however, I cannot figure out how to get this answer. Any help is appreciated.
October 16, 2012

English
My prompt is: Explain, in an essay with a thesis, why student papers must be relevant and how that relevance is achieved in their writing. (The requirements of this essay include why and how. Address both in the thesis) I'm pretty sure I need to address rhetorical stance ...
October 14, 2012

statistics
A researcher wants to study the spending habits of customers of a local shopping mall. The mall manager claims that the average spending per customer is $70, but the researcher believes that the average is less than $70. A simple random sample of 350 shoppers is obtained. The ...
October 13, 2012

multplication
When multiplying is there a rule stating that the numbers being multiplied can't have the same two last numbers as the product or the numbers can't end with the same numbers that were multiplied?
October 12, 2012

Pre-calc
Use the given zero to find the remaining zeros of the function: h(x)=x^4-15x^3+55x^2+155x-1476 Zero:5-4i I multiplied [x-(5-4i)][x-(5+4i)] and got x^2-10x+9. The example I have says to divide that by h and get a second quadratic equation that is also a factor of h. I have to ...
October 10, 2012

Trig.
Never mind, I figured it out.
October 9, 2012

Trig.
I'm trouble solving for theta. Any help is appreciated. 0.73377324 = sin(theta)/cos(theta)
October 9, 2012

Chem
Balance the following redox reactions in acidic solution by the half-reaction method Br–(aq) + I–(aq) + HClO(aq) = Br2(l) + IO3 + Cl–(aq)
October 7, 2012

Physics
A 1830-kg car is traveling with a speed of 19.8 m/s. What is the magnitude of the horizontal net force that is required to bring the car to a halt in a distance of 63.1 m? Not sure about the equation to use for this queation.
October 7, 2012

history
c
October 6, 2012

Math
what is the future value of $8000 a year for 28 years at 7.5%
October 5, 2012

Calculus
Find the absolute maximum and minimum vales of the set D. F(x,y) = x^2 + y^2 - 2x, D is the closed triangular region with vertices (2,0), (0,2), and (0,-2). I know that I have to find Fx(x,y) and Fy(x,y) but I'm not sure where to go from there. Any help is appreciated. Fx(...
October 4, 2012

Computer Science
Where can I find college grants and scholarships for men 2 deviations below standard in height?
October 4, 2012

Algebra
To keep his basketball team hydrated, Daniel mixes a powdered sports drink with cold water. For best taste the mix should be 96% water. If Danial has used 16 scoops of powder and added two quarts of water, how many gallons of water should he add, given than each scoop is 1/4 ...
October 3, 2012

Trigonometry
I need help on both of these... Find the exact value of cotx if the terminal side of angle x contains the point (-5,-12). Find the exact value of secx for angle x that has a terminal side containing the point (-1,squareroot3)
October 2, 2012

Trigonometry
Express 3 rad in degree measure and approximate to four significant digits
October 2, 2012

physics
A ball is thrown straight up with an initial speed of 30 m/s. How high does it go? Assume the acceleration of gravity is 10 m/s 2 . Answer in units of m
October 1, 2012

Math
if its linear, its a straight line. If its a quadratic, it looks like either a hill or a valley. It makes an arc. If its exponential, its a curve
October 1, 2012

Calculus
Never mind. I figured it out. L(x,y) = f(2,5) + fx(2,5)(x-2) + fy(2,5)(y-5) L(x,y) = 6 + 1(x-2) - 1(y-5) = 6+x-2-y+5 = x-y+9 L(2.2,4.9) = 2.2-4.9+9=6.3
September 30, 2012

Calculus
Given that f is a differentiable function with f(2,5) = 6, fx(2,5) = 1, and fy(2,5) = -1, use a linear approximation to estimate f(2.2,4.9). The answer is supposed to be 6.3. Here's what I've done so far: L(x,y) = f(2,5) + fx(2,5)(x) + fy(2,5)(y) L(x,y) = 6 + x - y L(2...
September 30, 2012

Physics
particle A moves along the line y = 30m with a constant velocity of magnitude 3.5 m/s and parallel to the x axis. At the instant particle A passes the y axis, particle B leaves the origin with 0 initial speed and constant acceleration of magnitude 0.50 m/s2. What angle θ ...
September 30, 2012

Philosophy
How might Hobbes argue that from the time of reformation (1517), with decline in the power of the pope, to WW1 no sufficient structure existed to support the Just War Theory?
September 30, 2012

Quantum Physics
They didn't say.. They just asked for the energy level that will emit a photon in an infrared region
September 30, 2012

Quantum Physics
An electron drop to what energy level is likely to emit a photon in the infrared region?
September 30, 2012

physics
two stones with initial speeds of 13 m/s and are thrown at an angle 30 degrees, one below the horizontal and one above the horizontal. What is the distance between the points where the stones strike the ground?
September 29, 2012

physics
two stones with initial speeds of 13 m/s and are thrown at an angle 30 degrees, one below the horizontal and one above the horizontal. What is the distance between the points where the stones strike the ground?
September 29, 2012

physics
two stones with initial speeds of 13 m/s and are thrown at an angle 30 degrees, one below the horizontal and one above the horizontal. What is the distance between the points where the stones strike the ground?
September 29, 2012

understanding observation behavior
Which of the following method depends on heavily on the observers memory.
September 28, 2012

assessing development cognitive language observat
There are several strategies that can help preschool children Foster language production one strategy that involves asking questions after a child. speaks to encourage him or her to continue talking is called?
September 28, 2012

assessing development cognitive language observat
When preschool child is first learning to print. alphabet letters he or she print letters upside down or backwards the teacher should.
September 28, 2012

Physics
A woman driving at a speed of 23 m/s sees a deer on the road ahead and applies the brakes when she is 210 m from the deer. If the deer does not move and the car stops right before it hits the deer, what is the acceleration provided by the car's brakes?
September 26, 2012

math
is 25 the answer?
September 26, 2012

math
please answer my question i really need help
September 26, 2012

math
So i should do 30/6=5 5*5=25
September 26, 2012

math
30 30 30 30 okay now what?
September 26, 2012

math
cause i need five squares to cover a aquare with a side length of 30 inches without over lappigng but i am really confused
September 26, 2012

math
i did 30 divided by 5 and i got six
September 26, 2012

math
2?
September 26, 2012

math
how many squares with sides that are 6 inches long and needed to cover a aquare with a side length of 30 inches without over lappigng i put 1 am i correct?
September 26, 2012

math
no because 548 rounded to the nearest 10 is 550, this 550-130 is 420
September 25, 2012

hands on variables
n+2x10 when n=5
September 25, 2012

math
how many boxes can 372 be equally divided into?
September 25, 2012

mathematics
given that (the square root)1,225 = 35, evauluate 250(to second power)
September 25, 2012

math
um thanks
September 25, 2012

math
thank you and one more question, what is a trick i can apply when i am asked to find the cube root of something? i am taking a test on friday and i want to know so i can get a good grade on it.
September 25, 2012

math
what is the cube root of 9,261?
September 25, 2012

Lang Arts
There is not right a wrong answer but think wisley :)
September 25, 2012

Lang Arts
Yes ms.sue will help you (sorry)
September 25, 2012

Lang Arts
Context clues. Ms.sue cannot give you the answers Jamin Go back in the story and use context clues
September 25, 2012

Math
a factory has a machine which bends wire at a rate of 8 units of curvature per second. how long does it take to bend a straight wire into a circle of radius 5?
September 24, 2012

math
238x123= ?
September 23, 2012

social studies
thank you
September 21, 2012

social studies
i need 5 major events that occurred during presidency of Franklin pierce. And i need 3 major accomplishments during presidency of Franklin pierce
September 21, 2012

science
yes they do to see if their hypothesis is correct
September 21, 2012

science
scientist do experimental tests more than once
September 21, 2012

math
5t=t-7
September 18, 2012

business
In what ways do different ideologies and political systems influence the environment in which MNCs operate?
September 9, 2012

Computer Science: NQC
Write a complete NQC program that spins for 2 minutes a Lego motor connected to the RCX output port B.
September 8, 2012

math
20.007 in expanded form
September 6, 2012

math
Using the equation y=(3x+2)(x+2) determine the x intercepts, the axis of symmetry and the vertex. I changed this equation into factored form because originally it was in standard form. Im having trouble with the x-intercepts. I want to say -2, -2 but I know that can't be ...
September 1, 2012

5th Grade Math
20.007 in expanded form
August 31, 2012

math
I think i need to explain this method using SOH CAH or TOA
August 31, 2012

math
lets say you have a tree or a flagpole. Describe how you would measure this object using right angled triganometry
August 31, 2012

math trig
I think i have to use soh cah toa instead of similar triangles
August 31, 2012

math trig
lets say you have a tree or a flagpole. Describe how you would measure this object using right angled triganometry
August 31, 2012

math
round each to the place indicated
August 28, 2012

social studies
Is the former name of the Democratic Republic of the Congo Zaire?
August 26, 2012

math
name three numbers less than 20 that cannot be arranged into arrays with two rows
August 24, 2012

physics
A train is speeding along a straight, level track at +20.0 m/s when the engineer applies the brakes, which results in an acceleration of -0.894 m/s2 as long as the train is in motion. How far does the train move during the 70 sec after the brakes are first applied?
August 24, 2012

Math
In X over 8 = 2 how do i find X?
August 22, 2012

vectors
A sailboat is out on the water for a cruise. First it sails at a rate of 4.93 m/s, at an angle of 120.0° for a period of 65.0 minutes. The wind then shifts and the vessel makes progress at a rate of 2.19 m/s, at an angle of 85°, for a period of 35.0 minutes. What is ...
August 21, 2012

math
Triangle ABC is similar to triangle FGH. Angle A measures 42 degrees. Angle G measures 49 degrees. Find the measure of angle H
August 20, 2012

College Chemistry
The sun bombards the earth with about 1KJ m^-2s^-1. Calculate the maximum mass of pure ethanol that can be vaporized in 10 min from a beaker left in strong sunshine, assuming the surface area of the ethanol t be 50cm^2.
August 15, 2012

math
Express 3/8 as decimal number
August 10, 2012

Physics
I've found that: v(f)^2 = v(i)^2 -2g(y - y(i)) gives me 17.2 m/s. However, this way doesn't account for the angle, so I don't think it's the right way to solve this.
July 28, 2012

Physics
I've been using: v(f)^2 = v(i)sin(45)^2 - 2g(y-y(i)) Then I use: v = sqrt((v(f)^2 + v(i)^2) However, doing this gives me 18.6 m/s instead of 17.2 m/s. Any help would be greatly appreciated.
July 28, 2012

Physics
3. A projectile is launched at 10.0 m/s in a direction 45.0 degrees above the horizon. It hits the ground 10.0 m below its initial position. What is its speed just before hitting the ground? Ignore air resistance. The answer is supposed to be 17.2 m/s.
July 28, 2012

Physics
Three masses that are 10 kg each are located at the corners of an equilateral triangle, with side length of 0.55m. What is the magnitude of the total force acting on one mass due to the other two masses? The answer is supposed to be 3.82e-08 N. Any help is appreciated. I'm...
July 28, 2012

chemistry
Suppose you mix 50 grams of CO and 10 grams of H2. How many grams of methanol can be produced?
July 26, 2012

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