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April 18, 2014

Homework Help: College

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college algebra
find the domain of (x-2)/(-3x+7)
Monday, October 21, 2013 at 6:11pm

college algebra
Let f(x) = 1/x − 2 and g(x) = 1/x − 3 . Determine the domain of the composite function. (Enter your answer using interval notation.) g compose f _____? & Find the composite function. (g compose f)(x) = _____?
Monday, October 21, 2013 at 5:54pm

college algebra
Let f(x) = square root (x + 2) and g(x) = x^2 − 2. Determine the domain of the composite function. (Enter your answer using interval notation.) f compose f ______? & Find the composite function. (f compose f)(x) = _____?
Monday, October 21, 2013 at 5:52pm

college algebra
Whether you want f(g),g(f),f(f) or g(g), the composite will be a polynomial. The domain of all polynomials is (-∞,∞)
Monday, October 21, 2013 at 5:19pm

college algebra
(Enter your answer using interval notation.) f compose f
Monday, October 21, 2013 at 4:32pm

college algebra
Let f(x) = x + 2 and g(x) = x2 − 2. Determine the domain of the composite function.
Monday, October 21, 2013 at 4:31pm

college algebra
Thank you so much.
Monday, October 21, 2013 at 4:30pm

college algebra
sqrt(x) + 7 Domain is the set of all possible values of x. Here, note that x is inside a squareroot radical sign and therefore cannot be less than zero. Thus domain is all real numbers greater than or equal to zero. In symbols: [0 , +infinity) Hope this helps :)
Monday, October 21, 2013 at 4:07pm

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

college physics
a. Of course, one way for athlete 1 to overtake athlete 2 is for him to accelerate (that is, if v2 > v1). But since the given are constant speeds, surely v2 MUST BE LESS THAN v1 in order for athlete 1 to overtake athlete 2, WITHOUT accelerating. b. Recall that the distance ...
Monday, October 21, 2013 at 2:01pm

History
Tell your teacher that the question is missing a word. It should be: What is the name of the first college founded in BRITISH North America?
Monday, October 21, 2013 at 1:02pm

History
If I remember correctly from 5th grade (I'm in eighth grade now), my textbook said that the first college in the US was Harvard.
Monday, October 21, 2013 at 12:40pm

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)
since f(x) = e^(4-7x) f(g) = e^(4-7g) = e^(4-7lnx) = e^4 / e^(7lnx) = e^4/x^7
Sunday, October 20, 2013 at 5:44am

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
I'll be glad to critique your answer.
Saturday, October 19, 2013 at 1:05pm

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

Health (Ms. Sue)
My only comment is you are becoming a commakazi. Count the sentences, and count the commas. sentences:six commas: thirteen examples for you: Effective writing usually consists of shorter sentences, with few fragements, and compound sentences. One sentence, two commas. Short ...
Saturday, October 19, 2013 at 9:26am

college physics
The exaust temp would be zero K. The engine would be at the same temperature it started at (probably O K, the exaust temperature) It could not vibrate, that takes energy.
Friday, October 18, 2013 at 9:50pm

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

College Physics
All of your math is correct except that h is just 36.7 because the bungee is attached to his feet not halfway up his body. Therefore his potential energy has to be measured to that point. Then you get mgh=1/2kx^2 k=(2mgh)/x^2 k=(2*93.1*9.8*36.7)/9.3^2 = 774.29 N/m
Friday, October 18, 2013 at 5:09pm

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
Please proofread and explain.
Friday, October 18, 2013 at 11:56am

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

college
have you tried ball sucking lolz who iz u dawg??
Friday, October 18, 2013 at 11:21am

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

Introduction to computers
What type of device is characteristic environment? a. a workstation used by a retired person b.a workstation usedat an engineering firm c.a tablet computer used by an elementary school student d. a notebook used by a college student
Thursday, October 17, 2013 at 6:53pm

History
Mark? Leonardo? Why the two names? Yes, supply and demand could change a person's life. But that's not the same as saying that s and d was the most important law governing human behavior. To begin with, very few people went to college in the 19th century.
Thursday, October 17, 2013 at 5:16pm

History
Well say you were applying into a college but you had 15 choices to choice from. However, you had to limit the choices to 5 due to expenses and how far it was from home. So you apply into all 5 colleges and you only get into 1 of those 5 colleges. You go to the college but ...
Thursday, October 17, 2013 at 5:11pm

college physics
power=work/time=mgh/time
Thursday, October 17, 2013 at 4:39pm

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

Quantum Physics
ya okay maybe some people have cheated all the way through. But there may be a reason or so either to pass atleast the 80% mark because it is high cutoff and we have limited chances. Y people may do this? To get certificate . Does certificate matters? Yes, may be they will use...
Thursday, October 17, 2013 at 8:45am

college physics
1.84 m
Wednesday, October 16, 2013 at 6:29pm

Help history
Have you checked the college course catalog for a description of each course?
Wednesday, October 16, 2013 at 5:29pm

college math
Hey, ML, why didn't you use Y@hoo! Answers like everyone else in Finston's math class? Are those even your real initials? Mysterious. He tells you how to attach a handle in the next bullet point. Removing a lid does nothing to the Euler characteristic but increases the...
Wednesday, October 16, 2013 at 5:24pm

Help history
I don't know either. My college wants me to pick one. I'm clueless about these. I thought u might help I want to pick the interesting one so I can pay attention.
Wednesday, October 16, 2013 at 5:21pm

College Chem
thank you!!
Tuesday, October 15, 2013 at 11:06pm

College Chem
C = k*p C = 1.66E-6M/mm x mm (760 mm - 55.3 = 704.7) C = 1.66E-6 M/mm*704.7 mm = ? M Convert that to grams/L and to g/mL.
Tuesday, October 15, 2013 at 11:02pm

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
LW = 78, so L = 78/W L+W = 19 78/W + W = 19 W^2 - 19W + 78 = 0 W=6,L=13 for the picture, if the frame has width w, then (7+2w)(9+2w) = 120 now just solve for w. Just by looking, I'd say that 10x12 = 120, so w=1.5
Tuesday, October 15, 2013 at 4:16pm

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
I'll be glad to check your answer.
Monday, October 14, 2013 at 10:30pm

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
Thank you Steve, that was a big help.
Monday, October 14, 2013 at 7:48pm

college algebra
It's easier to work with 1/f(t) = 1/t + 1/(t+3) For crew 1, 1/t = 1/24, so t=24 Thus 1/f(t) = 1/24 + 1/27 = 17/216 So, both crews can do it in 216/17 days For crew 2, 1/(t+3) = 1/32, so t=29 Now 1/f(t) = 1/29 + 1/32 = 61/928 So, both crews can do it in 928/61 days
Monday, October 14, 2013 at 4:35pm

College Algebra
see the other solution I gave. Same exact problem, just a different point.
Monday, October 14, 2013 at 4:23pm

College Algebra
Since the axis is vertical, you know it's y = a(x-h)^2 + k Since the vertex is at (0,0), you know that h=k=0, and thus y = ax^2 1/8 = 25a a = 1/200 so, y = 1/200 x^2 All the data you needed was there. Just gotta read it carefully.
Monday, October 14, 2013 at 4:22pm

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
Thank you soooo much!!!
Sunday, October 13, 2013 at 6:31pm

College Physics
m = 938.3 MeV/c^2 v = 7500 km/s m v = 938.3 MeV/c^2 7500 km/s = 938.3 MeV/c (7500 km/s)/c = 23.47 MeV/c
Sunday, October 13, 2013 at 6:20pm

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
I thought we had already done this a couple of months ago! http://www.jiskha.com/display.cgi?id=137​8546917
Sunday, October 13, 2013 at 9:50am

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
3 letters ---> 26^3 3 numbers, assuming it may start with a zero --- 10^4 number of plates = 26^3 (10^4) = 175760000 (about 176 million, long way to go) ii) so only 24 letters, and 8 numbers -- what do you think? iii) look at the letter part first: assume we put CC at the ...
Saturday, October 12, 2013 at 9:18pm

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

Physics???
Yes, all AP classes are very challenging and difficult. After all it's a college class offered to high school students.
Thursday, October 10, 2013 at 10:01pm

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
thank you!
Thursday, October 10, 2013 at 9:40am

College Algebra
9.375
Wednesday, October 9, 2013 at 11:38pm

college algebra
using quotient rule, dy/dx - (x-4 - (x-3))/(x-4)^2 VA: x=4 HA: y=1 so slants for y-intercept, let x = 0, then y =3/4 (0, 3/4) for x-intercept , let y = 0 verification: http://www.wolframalpha.com/input/?i=plo​t+y+%3D%28x-3%29%2F%28x-4%29 (x-3)/(x-4) = 0 x = 3 ---> x-...
Wednesday, October 9, 2013 at 8:54pm

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

College: Chem 1
a. mols NaClO4 = grams/molar mass Then M = mols/L soln. b is done the same way.
Wednesday, October 9, 2013 at 1:57pm

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
Hydrobromic acid in the presence of peroxides + 2-methyl-2-butene
Monday, October 7, 2013 at 11:11pm

college physics
E=k2λ/r E=9•10⁹•2•87•1​0⁻⁶/2•0.1 =... E=9•10⁹•2•87•1​0⁻⁶/2•0.26 =... E=9•10⁹•2•87•1​0⁻⁶/2•1.4 =...
Monday, October 7, 2013 at 5:44pm

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

college chem
What is the molarity of ZnCl2 that forms when 25.0g of zinc completely reacts with CuCl2 according to the following reaction? Assume a final volume of 285mL . Zn(s)+CuCl2(aq)→ZnCl2(aq)+Cu(s)
Monday, October 7, 2013 at 11:15am

estraellamountaincommunity college
answer x=1
Monday, October 7, 2013 at 12:36am

estraellamountaincommunity college
-94x=19(5)=x=1
Monday, October 7, 2013 at 12:35am

estraellamountaincommunity college
if a number is subtracted 94,result 19more than the product of 5 and the a number
Monday, October 7, 2013 at 12:33am

estraellamountaincommunity college
answer 12038of the demension
Monday, October 7, 2013 at 12:28am

oops typo--estraellamountaincommunity college
That should be "substitute W+200 for L into the first equation and solve for W."
Monday, October 7, 2013 at 12:22am

estraellamountaincommunity college
answers is Demensions of the field 1240
Monday, October 7, 2013 at 12:17am

estraellamountaincommunity college
1040 = 2L + 2W L = W+200 Two equations; two unknowns. Substitute 2+200 for L into the first equation and solve for W.
Monday, October 7, 2013 at 12:15am

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 chem
n one experiment, the mass of the metal block is 93.3 grams, the volume of water used is 96.3 mL, the temperature of the cold water extrapolated to the time of mixing is 20.4oC, and the temperature of the metal block and water extrapolated back to the time of mixing is 28.7oC...
Sunday, October 6, 2013 at 11:59pm

College Math 45
A speaker has a collection of 62 jokes. He uses 3 jokes in each speech. How many speeches can he give without using a joke twice? (Round your answer down to the nearest whole number.)
Sunday, October 6, 2013 at 11:30pm

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
thank you Steve, that helped alot! appreciate your help.
Friday, October 4, 2013 at 3:51pm

College Algebra
well, if you want a correct answer, you need to pose the correct question. If the short side is x and the long side is y, then 2y+3x = 1932, so y = (1932-3x)/2 area = xy = x(1932-3x)/2 = (1932x-3x^2)/2 This is a parabola, with vertex at x=322. You can probably take it from ...
Friday, October 4, 2013 at 3:27pm

College Algebra
Tried that too and still didn't work. the picture has a rectangular fence with a fence going across the middle from longest side to the opposite side.
Friday, October 4, 2013 at 1:04pm

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