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September 1, 2014

Homework Help: College

Post a New Question | Current Questions

college algebra
what is the domain of (square root of x) +7?
Monday, October 21, 2013 at 3:58pm

History
1) The Proclamation of 1763 called for (1point) Settlers to move westward. A war. A halt to westward expansion Native Americans to move west. 2) The most inhuman aspect of the triangular trade was the (1point) Southern Route Merchant trade route Middle Passage Fishing trade 3...
Monday, October 21, 2013 at 12:03pm

college physics
One athlete in a race runnng on a long, straight track with a constanct speed v1 is a distance d behind a second athlete running with a constant speed v2. (a) Under what circumstances is the first athlete able to overtake the second athlete? (Use v_1 for v1, v_2 for v2, and d ...
Monday, October 21, 2013 at 11:57am

College Physics
A 27.7-cm-by-27.7-cm checkerboard has a mass of 103.1 g. There are four 27.7-g checkers located on the checkerboard, as shown in the figure. Relative to the origin located at the bottom left corner of the checkerboard, where is the center of mass of the checkerboard-checkers ...
Sunday, October 20, 2013 at 9:51pm

College Physics
A fire hose 4.79 cm in diameter is capable of spraying water at a velocity of 17.1 m/s. For a continuous horizontal flow of water, what horizontal force should a fireman exert on the hose to keep it stationary?
Sunday, October 20, 2013 at 2:09pm

college physics
Why do the passengers in high- altitude jet planes feel the sensation of weight while passengers in the International Space Station do not?
Sunday, October 20, 2013 at 2:04pm

Math (College Pre-Cal)
Find a formula for(f o g)(x)assuming that f(x)= e^(4-7x)and g(x)= ln(x). Give your answer in the simplest form.
Sunday, October 20, 2013 at 1:50am

college history
The evolution of the socio-political and cultural milieu that created the conditions necessitating and including the formation of the: (a) Declaration of Independence (b) the Constitution (including the Bill of Rights)
Saturday, October 19, 2013 at 12:58pm

college physics
If an automobile had a 100% efficient engine transferring all of the fuel's energy to work, would the engine be warm to your touch? Would its exhaust heat the surrounding air? Would it vibrate? Would any of its fuel go unused? There are really no 100% percent efficient ...
Friday, October 18, 2013 at 9:44pm

english
(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
Friday, October 18, 2013 at 6:10pm

math
You and your friend are saving for college. You have $50 and are added $10 each week to your savings. Your friend has $20 and he is adding $20 each week to his savings. a. what system of equations would be a good model for this situation? Let x be number of weeks and y be the ...
Friday, October 18, 2013 at 1:14pm

College
Do the Counselors, at the Colleges, suppose to give their students good advises, of how to continues, and to further there Education, and to supervised how to UPGRADE their Continuing Education? YES? OR NO? WHY?
Friday, October 18, 2013 at 11:54am

Health
1). State how each of the six risk behaviors could affect one of your goals. A: Each of the six risk factors could affect my goal of becoming an actress immensely. Drug and alcohol use, poor dietary problems, and tobacco use could harm my physical health, making me unable to ...
Thursday, October 17, 2013 at 7:36pm

college physics
Show that 480W of power is expended by a weightlifter when lifting a 60-kg barbell a vertical distance of 1.2m in a time interval of 1.5s.
Thursday, October 17, 2013 at 3:50pm

College Chem
Oxygen gas has a Henry's law constant of 1.66*10^-6 M/mm Hg at 40 degree C when dissolving in water. If the total pressure of gass (O2 gas plus water vapor) over water is 1.0 atm, what is the concentration of O2 in the water in grams per milliliter? Pressure of the water ...
Tuesday, October 15, 2013 at 10:11pm

english language arts 2
Identify the comma rule that the following sentence breaks: Although she loved her parents Sarah was eager to leave for college and be independent.
Tuesday, October 15, 2013 at 6:36pm

Algebra 0110 College
1) A rectangle has perimeter 38 feet and an area of 78 square feet. Find the dimensions of the rectangle assuming the width is smaller than the length. L= W= 2) A rectangular canvas picture measures 9 inches by 7 inches. The canvas is mounted inside a frame of uniform width, ...
Tuesday, October 15, 2013 at 4:07pm

College readiness
Rent-it-Right rents compact cars for $38 plus $0.15 per mile. Lucia rented a car for 3 days and was charged $150. How many miles did she drive?
Monday, October 14, 2013 at 10:29pm

college math
The classification of closed orientable surfaces says that they are all spheres with a certain number of handles attached. For example, a sphere is a sphere with 0 handles. A torus is a sphere with one handle. A two holed torus is a sphere with two handles etc. How does one &...
Monday, October 14, 2013 at 8:13pm

College Algebra
Find the standard form of the equation of the parabola with the given characteristics and vertex at the origin. Passes through the point (-5, 1/8); vertical axis. There is no focus of the parabola or equation given, so how am I suppose to solve this problem?
Monday, October 14, 2013 at 3:33pm

College Algebra
Find the standard form of the equation of the parabola with the given characteristics and vertex at the origin. Passes through the point (-1, 1/8); vertical axis. There is no focus of the parabola or equation given, so how am I suppose to solve this problem?
Monday, October 14, 2013 at 3:31pm

college algebra
the following rational function gives the number of days it would take two construction crews, working together, to frame a house that crew 1 (working alone)could complete in t days and crew 2 (working alone) could complete in t+3 days. f(t)=(t^2+3t)/(2t+3). (a) if crew 1 ...
Monday, October 14, 2013 at 1:04pm

College Physics
Tarzan swings on a vine from a cliff to rescue Jane, who is standing on the ground surrounded by snakes. His plan is to push off the cliff, grab Jane at the lowest point of his swing, and carry them both to the safety of a nearby tree (see figure). Tarzan's mass is 76.1 kg...
Sunday, October 13, 2013 at 11:20pm

College Physics
Although they don’t have mass, photons—traveling at the speed of light—have momentum. Space travel experts have thought of capitalizing on this fact by constructing solar sails—large sheets of material that would work by reflecting photons. Since the ...
Sunday, October 13, 2013 at 8:21pm

College Physics
The electron-volt, eV, is a unit of energy (1eV = 1.602 ·10–19 J, 1 MeV = 1.602 ·10–13 J). Since the unit of momentum is an energy unit divided by a velocity unit, nuclear physicists usually specify momenta of nuclei in units of MeV/c, where c is the ...
Sunday, October 13, 2013 at 5:23pm

college essay
can someone help me edit this My Song My existence thus far has been a musical performance. The world is my stage, the platform upon which I express myself creatively. My life is the reputable melody that I play on my guitar, and the notes are my memories and life experiences...
Sunday, October 13, 2013 at 9:39am

College probability and statistics
The current license plates in New York State consist of three letters followed by four digits. ( i ) How many possible distinct license plates can there be? ( ii ) How many possible distinct license plates could there be if the letters O and I and the digits, 0 and 1 were ...
Saturday, October 12, 2013 at 5:30pm

college statistics
7. Mary goes into the supermarket. The probability that she buys (a) regular coffee is .30, (b) decaffeinated coffee is .40, and (c) that she buys both is .30. What is the probability that she buys regular coffee, decaffeinated coffee, or both?
Thursday, October 10, 2013 at 10:51pm

college statistics
2. A researcher has developed a new questionnaire for measuring dominance and would like to estimate the population parameters for the test scores. The questionnaire is administered to a sample of n = 25 subjects. This sample has an average score of mean = 43 with SS = 2400. ...
Thursday, October 10, 2013 at 10:51pm

reading interpretation
(1) After my interview with these four young people, I reflected on the quiet sense of "difference" I sensed with many of these Upward Bound students. (2) As a college teacher who has also taught seventh-grade science, I have some experience with the faces and ...
Thursday, October 10, 2013 at 12:33pm

college algebra
Need help in finding all vertical, horizontal, and slant asymptotes, x- and y-intercepts, and symmetries of f(x)=(x-3)/(x-4)
Wednesday, October 9, 2013 at 7:29pm

Mendipather college
What are the significant challenges to effective governance in india?
Wednesday, October 9, 2013 at 4:47am

college physics
A conductor in a shape of a spherical shell of radii 10 and 12cm in charged to 20 micro coloumb. 1) Find the electric field at the following radii: 2,11,15 cm. 2)Find the electric potential at each of these radii. Repeat part 1 and a -5 microcoloumb point charge is being ...
Wednesday, October 9, 2013 at 3:59am

College: Chem 1
What would be the molar concentration of the solute in each of the following solutions? a. 0.50 L containing 38.6 g of NaClO4 b. 0.25 L containing 41.5 g of C4H8O
Tuesday, October 8, 2013 at 11:58pm

college chem
a compound containing
Monday, October 7, 2013 at 3:16pm

estraellamountaincommunity college
an American football field is a rectangle with a perimeter of 1040 feet the Lenght is 200 feet more than the width find the demensionof the field
Monday, October 7, 2013 at 12:11am

College Math 45
Mrs. Brown has 17 children in her first-grade class, and Mr. Lopez has 20 children in his second-grade class. The principal has been asked to select 1 student from one of the classes to appear at a PTA meeting. How many ways can the selection be made?
Sunday, October 6, 2013 at 11:23pm

college physics
The charge per unit length on a long, straight filament is -87.0 µC/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b...
Sunday, October 6, 2013 at 8:27pm

college physics
The charge per unit length on a long, straight filament is -87.0 µC/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b...
Sunday, October 6, 2013 at 6:26pm

college physics
The charge per unit length on a long, straight filament is -87.0 µC/m. (a) Find the electric field 10.0 cm from the filament. Distances are measured perpendicular to the length of the filament. (Take radially inward toward the filament as the positive direction.) MN/C (b...
Sunday, October 6, 2013 at 4:54pm

question
if your a highschool student for the the summer can you go to community college and earn credit for highschool
Saturday, October 5, 2013 at 9:57pm

College Algebra
A rancher wishes to enclose a rectangular partitioned corral with 1932 feet of fencing. What dimensions of the corral would enclose the largest possible area? Find the maxium area.
Friday, October 4, 2013 at 12:54pm

algebra 1
You work in the local mailroom at a college. One of your duties is to sort local mail from all of the other mail. You can sort 8 pieces of mail in 10 seconds. How many pieces of mail should you be able to sort in 45 minuets?
Thursday, October 3, 2013 at 11:56pm

Algebra 1
You work in the local mailroom at a college. One of your duties is to sort local mail from all of the other mail. You can sort 8 pieces of mail in 10 seconds. How many pieces of mail should you be able to sort in 45 minuets?
Thursday, October 3, 2013 at 9:38pm

College Statistics
Suppose we want to model the number of rats captured in a single trap in a day, where the average number caught is 5 (i.e. X ∼ Poi(5)). (a) What is the probability of catching 6 rats in one trap in a day? (b) What is the probability of catching 12 rats in 2 traps in a ...
Monday, September 30, 2013 at 9:09pm

College Statistics
For X ∼ Bin(n, p), show that E(X) = np and Var(X) = np(1 − p) Our book defines this as true, but I don't know how to actually prove it.
Monday, September 30, 2013 at 9:07pm

college math
1/100000-1/10000
Monday, September 30, 2013 at 7:51am

Math (College Pre-Cal)
The exact conversion between the English measurement system and the metric system is given by the equation 1 inch= 2.54 cm. Let f(x) be the number of miles in x meters. Find a formula for f(x). Give an exact answer.
Sunday, September 29, 2013 at 11:06pm

college physics
An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction and has a magnitude of 6.4N ; a second force has a magnitude of 5.0N and points in the negative y direction.
Sunday, September 29, 2013 at 10:24pm

algebra
Kelly plans to put her graduation money into an account and leave it there for 4 years while she goes to college. She receives $750 in graduation money that she puts it into an account that earns 4.25% interest compounded semi-annually. How much will be in Kellys account at ...
Sunday, September 29, 2013 at 6:53pm

Wayne community college
When a 0.101 kg mass is suspended at rest from a certain spring, the spring stretches 3.80 cm. Find the instantaneous acceleration of the mass when it is raised 5.90 cm, compressing the spring 2.10 cm.
Sunday, September 29, 2013 at 6:20pm

college physics
Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Saturday, September 28, 2013 at 3:59am

statistics
The typical amount of sleep per night for undergraduate college students has a bell shaped distribution with a mean of 7 and a standard deviation of 1.90 hours. Based on this distributional information we can conclude that at least 95 % of this population sleep ...
Friday, September 27, 2013 at 5:46pm

algebra
Miranda's financial aid stipulates that her tuition not exceed $1200. If college charges a $45 registration fee plus $475 per course, what is the greatest number of courses for which Miranda can register. Miranda can register for at the most ???? courses
Friday, September 27, 2013 at 2:51am

college math
A professor wants to supplement her pension with investment interest. If she invests $26,000 at 4% interest, how much more would she have to invest at 7% to achieve a goal of $2,300 per year in supplemental income?
Wednesday, September 25, 2013 at 7:16pm

English
What's a good introduction for an essay about Pressure that Working College Students Face? please help (:
Monday, September 23, 2013 at 3:44pm

Florida career college
The medical practice uses 48-inch-wide shelving units, which hold 46 inches of files per shelf. There are eight shelves. This means each unit can hold 8x46 inches = 368 inches . How many shelving units does the practice need to store its patient records?
Monday, September 23, 2013 at 8:45am

College physics
If you throw a ball horizontally while standing on a skateboard, you roll backward with a momentum that matches that of the ball. Will you roll backward if you hold onto the ball while going through the motions of throwing it? Explain in terms of momentum conservation.
Sunday, September 22, 2013 at 10:07pm

college physics
a) Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Sunday, September 22, 2013 at 5:47pm

college physics
A rod 14.0 cm long is uniformly charged and has a total charge of -20.0 µC. Determine the magnitude and direction of the electric field along the axis of the rod at a point 36.0 cm from its center. N/C
Saturday, September 21, 2013 at 2:43am

college physics
In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is approximately 0.542 multiplied by 10-10 m. (The actual value is 0.529 multiplied by 10-10 m.) (a) Find the electric force exerted on each particle, ...
Saturday, September 21, 2013 at 2:43am

college physics
(a) Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Saturday, September 21, 2013 at 2:42am

Math (College Level Mathematics)
Fourier sin series for f(x) = 1, 0 < x < Pie is given by 1 = 4/n E 1/ (2n-1) times sin (2n-1) x, (0 < x < n). Using this, find the Fourier sinc series for f(x)= 1, on 0 < x < c where c > 0. Then find the Fourier series for g(x), x > 0 where g(x) = 1, 0...
Saturday, September 21, 2013 at 1:17am

Math (College Level Mathematics)
Fourier cosine series correspondence for f(x)= x, o < x < pie given by x ~ pie / 2 - 4/n, E infinity on top and n=1 on bottom. cos (an-1)/x / (2n-1)squared, (0 < x < Pie). Explain why this correspondence is actually an equality for 0 is less than or equal to x and...
Saturday, September 21, 2013 at 1:08am

Math (College Level Mathematics)
Let c > 0 be a constant. For F E Cp (-C, C), the Bessel inequality is ao squared/ 2 + N E n = 1 (an squared + bn squared) is less than or equal to 1/C { c on top, c on bottom [ f (x)] squared of x, N = 1, 2, ... Where an and bn are the Fourier coefficients for f (x), -c <...
Friday, September 20, 2013 at 10:54pm

College Physics 1
A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 6.17 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 25° when they move past the window, as the ...
Friday, September 20, 2013 at 4:39pm

College Algebra
Need help in working this problem - the cost of renting an edger is $16.50 for the first hour and $10.95 for each additional hour. How long can a person have the edger if the cost must be less than $55.00? (This is a question under the inequalities section)
Wednesday, September 18, 2013 at 8:35am

college physics
A rod 14.0 cm long is uniformly charged and has a total charge of -20.0 µC. Determine the magnitude and direction of the electric field along the axis of the rod at a point 36.0 cm from its center. N/C toward the rod away from the rod
Wednesday, September 18, 2013 at 4:14am

college physics
In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton, where the radius of the orbit is approximately 0.542 multiplied by 10-10 m. (The actual value is 0.529 multiplied by 10-10 m.) (a) Find the electric force exerted on each particle, ...
Wednesday, September 18, 2013 at 4:13am

college physics
(a) Two protons in a molecule are 3.80 multiplied by 10-10 m apart. Find the electrical force exerted by one proton on the other. Magnitude N (b) State how the magnitude of this force compares with the magnitude of the gravitational force exerted by one proton on the other. (...
Wednesday, September 18, 2013 at 4:13am

Math (College Pre-Cal)
For given functions f and g find formulas for a)f o g and b)g o f. Simplify results as much as possible. f(x)= x+7/x-13 , g(x)= 1/x+1
Tuesday, September 17, 2013 at 11:42pm

Physics 2 College Level
A cylinder is closed at both ends and has insulating walls. It is divided into two compartments by an insulating piston that is perpendicular to the axis of the cylinder as shown in Figure a. Each compartment contains 1.00 mol of oxygen that behaves as an ideal gas with γ...
Tuesday, September 17, 2013 at 11:14pm

College Physics
How much would you have to raise the temperature of a copper wire (originally at 20 ∘ C) to increase its resistance by 30% ?
Tuesday, September 17, 2013 at 8:56pm

College Physics 1
A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe, starting from rest, takes...
Tuesday, September 17, 2013 at 12:46pm

College Algebre
f(x)= -3x^2+5x-2 Find f(x+h)/h
Monday, September 16, 2013 at 4:07pm

choice
Varsity Press, a publisher of college textbooks, received a $70,000 promissory note at 12% ordinary interest for 60 days from one of its customers, Reader’s Choice Bookstores. After 20 days, Varsity Press discounted the note at the Grove Isle Bank at a discount rate of ...
Monday, September 16, 2013 at 3:17pm

College Physics
vector A has a magnitude of 29 units when B is added to A . find magnitude of B.
Monday, September 16, 2013 at 11:45am

college math
system of equations: solve the following system of operations using matrices (row operations) {5x + y + z + w = -5} {x - 2y + 2z -3w = -4}
Saturday, September 14, 2013 at 2:28pm

Radius Question Geometry(college level)
When you have 3 separate circles and the radius of each of those circles is 10 do i calculate like this? 2(10)+2(10)+2(10)=60 cm for my diameter
Saturday, September 14, 2013 at 8:21am

College Algebra
A couple wants to rent a car for one day while on vacation. Frank's Automotive Rental wants $29 a day and $0.17 per mile, while Coups-For--Day wants $21 a day and $0.19 per mile . After how many miles wo9uld the price from Coups exceed the price to rent from Franks?
Saturday, September 14, 2013 at 12:17am

college physics
Nobel laureate Richard Feynman (1918-1988) once said that if two persons stood at arm's length from each other and each person had 1% more electrons than protons, the force of repulsion between them would be enough to lift a "weight" equal to that of the entire ...
Friday, September 13, 2013 at 11:52pm

College algebra
Allison drove home at 58 mph, but her brother Austin, who left at the same time, could drive at only 40 mph. When Allison arrived, Austin still had 108 miles to go. How far did Allison drive?
Friday, September 13, 2013 at 12:05am

college algebra
Find the intercepts of the function f(x). f(x) = (x - 2)2(x2 - 9)
Thursday, September 12, 2013 at 8:38pm

college algebra
Please help. Merina is moving out of her mom's house to her new house which is 14 miles away to reach her new house. Truck A offers a flat fee of $25 and $.40 per mile. What is the proper equation to solve the problem.
Thursday, September 12, 2013 at 5:43pm

College Math
A plane flies 460 miles with the wind and 310 miles against the wind in the same length of time. If the speed of the wind is 30 mph, what is the speed of the plane in calm air?
Tuesday, September 10, 2013 at 5:14pm

college physics1
A stone is dropped from rest from an infinitely tall building. Compute its velocity after 2 seconds
Tuesday, September 10, 2013 at 8:05am

college algebra
The county news earns a profit of $20 per year for each of its 3000 subscribers. Management projects that the profit per subscriber would increase by $0.01 for each additional subscriber over the current 3,000. How many subscribers are needed to bring a total profit of $113,100?
Tuesday, September 10, 2013 at 12:42am

college algebra
Scott and Laura have both invested some money. Scott invested $2500 more than Laura and at a 3% higher interest rate. If Scott received $900 annual interest and Laura received $450, how much did Scott invest?
Tuesday, September 10, 2013 at 12:04am

College Algebra
If a ball dropped from the top of a 400 ft building to hit the ground, how long would it take in seconds?
Sunday, September 8, 2013 at 8:21pm

college math
I need help to simplify (-9)(-7) + 6?
Sunday, September 8, 2013 at 6:16pm

college math
Please simplify 100(-5)/25. Thanks a lot.
Sunday, September 8, 2013 at 6:13pm

college math
simplify -10 -5
Sunday, September 8, 2013 at 5:51pm

college algebra
a large rectangular movie screen in an IMAX theater has an area of 8624 square feet. Find the dimensions of the screen if it is 10 feet longer than it is wide.
Sunday, September 8, 2013 at 5:10pm

college essay
Im writing a college essay and Im not sure how to edit the first paragraph My existence thus far has been a musical performance. The world is my stage, the platform on which I can express myself creatively. My life is the reputable melody that I play from my guitar, and the ...
Saturday, September 7, 2013 at 5:41am

algebra 1
A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of March 2009, her checking account held a balance of $800. What is the monthly rate of change for the student’s checking ...
Friday, September 6, 2013 at 10:35am

SS
Kevin decides to go straight to work after high school instead of college. What is the most likely long term consequence of this decision? a)changing jobs often b)making less money c)having lots of debt d)not finding work Is it b?
Thursday, September 5, 2013 at 7:18pm

college physics
A sprinter can reach a speed of 9.0 m/s in 1.0 s. If the sprinter’s acceleration is constant during that time, what is the sprinter’s acceleration?
Thursday, September 5, 2013 at 3:53pm

college algebra
Find all real solutions of the equation. (Enter your answers as a comma-separated list. If there is no real solution, enter NO REAL SOLUTION.) x4 + 27x = 0
Thursday, September 5, 2013 at 2:12am

College Geometry
In this assignment, you examine a process that links polygons and circles. You will reach some quantitative conclusions about their respective areas and the relationship between the two. As you know, a regular polygon has sides of equal length and angles that are the same. ...
Tuesday, September 3, 2013 at 3:37pm

College Physics II
A steel wire and a copper wire, each of diameter 2.000 mm, are joined end to end. At 48.0°C, each has an unstretched length of 2.000 m. The wires are connected between two fixed supports 4.000 m apart on a tabletop. The steel wire extends from x = −2.000 m to x = 0, ...
Tuesday, September 3, 2013 at 11:02am

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