Wednesday

January 28, 2015

January 28, 2015

Post a New Question | Current Questions

**college physics**

A 30.3-kg child starting from rest slides down a water slide with a vertical height of 10.5 m. (Neglect friction.) (a) What is the child's speed halfway down the slide's vertical distance?
*Monday, March 25, 2013 at 10:54pm*

**Proctology**

Hi, I am an 11th grade student beginning to look into some college options. I am interested in pursuing a career in proctology and have been reading some preliminary books on the topic. Can anyone recommend a college or pre-med program that would offer a strong proctology ...
*Monday, March 25, 2013 at 8:53pm*

**college algebra**

I'm stuck on 2 problems I know the answers but need to learn to show the work. X^4+x^3=16-8x-6x^2. Answer: -2,1,+-√8 3x^3+4x^2+6=x. (-2,1/3, i√8/3) Please help so I know how to figure these equations out.A big THANKS
*Monday, March 25, 2013 at 7:53pm*

**College algebra**

Form a polynomial f(x) with real coefficents having the given degree and zeros degree 5; zeros: 5; -i; -9 +i f(x)=a
*Monday, March 25, 2013 at 1:49pm*

**College Gen. Math**

There are 6 times as many dimes as quarters, and 6 times more nickels than quarters. If you have $5.70, how much money do you have in quarters?
*Monday, March 25, 2013 at 12:06pm*

**College Physics**

A child's toy consists of a toy car of mass 0.100kg which is able to roll without friction on the loop-the-loop track shown. The car is accelerated from rest by pushing it with force F over a distance d, then the car slides with a constant velocity until it encounters the ...
*Sunday, March 24, 2013 at 10:36pm*

**College algebra**

Find the vertical, horizontal, and qblique asymptotes, if any, for the following rational function. T(x)=x^2/x^4-256
*Sunday, March 24, 2013 at 9:34pm*

**college algebra **

determine the vertical asymptotes of the graph of function.g(x)=x^3 diveded by 5x^3-x^2-22x
*Sunday, March 24, 2013 at 8:22pm*

**MA 107 college algebra**

Simplify the expression using the power rule.(3to the power of 2)to the power of 5
*Sunday, March 24, 2013 at 7:38pm*

**MA 107 college algebra**

Each side of a square is lengthened by 2 inches. The area of this new, larger square is 81 square inches. Find the length of a side of the original square.
*Sunday, March 24, 2013 at 7:34pm*

**college math **

How many different committees can be formed from 9 teachers and 39 students if the committee consists of 2 teachers and 3 students? In how many ways can the committee of 5 members be selected?
*Sunday, March 24, 2013 at 4:54pm*

**College Algerbra**

Solve the inequality. 0.1(0.1x+0.1) _< -0.8
*Sunday, March 24, 2013 at 3:24pm*

**College Algerbra**

Solve the inequality. - 5x / 7 -2>-1
*Sunday, March 24, 2013 at 3:20pm*

**College Algerbra**

THE TEMPERATURE ON A SUMMER DAY IS // DEGREES FAHRENHEIT.the formula to convert the temperature to degrees Celsius is C = 5/9(F-32) what is the corresponding temperature in degrees Celsius?
*Sunday, March 24, 2013 at 3:10pm*

**math**

Mark averaged 60 miles per hour during the 30-mile trip to college. Because of heavy traffic he was able to average only 40 miles per hour during the return trip. What was Mark's average speed for the round trip?
*Sunday, March 24, 2013 at 2:37pm*

**chemistry 2 college**

explain how to find the mass of solute in the solution: 50.0g of solvent in a 10.0% NaCl solution?
*Sunday, March 24, 2013 at 12:25pm*

**college algebra**

A rectangular box with no top is to be constructed from a 10 in. x 10 in square piece of cardboard by cutting equal square of side x from each corner and then bending up the sides. Write the volume of the box as a function of x.
*Saturday, March 23, 2013 at 6:00pm*

**college algebra**

A rectangular box with no top is to be constructed from a 10 in. x 10 in square piece of cardboard by cutting equal square of side x from each corner and then bending up the sides. Write the volume of the box as a function of x.
*Saturday, March 23, 2013 at 5:31pm*

**college algebra**

A roll of 640 feet of chicken wire is used to enclose a rectangular vegetable garden.Express the area A of the garden in terms of its length (x)
*Saturday, March 23, 2013 at 5:19pm*

**college algebra**

A rectangular box with no top is to be constructed from a 10 in. x 10 in square piece of cardboard by cutting equal square of side x from each corner and then bending up the sides. Write the volume of the box as a function of x.
*Saturday, March 23, 2013 at 4:58pm*

**college algebra**

A roll of 640 feet of chicken wire is used to enclose a rectangular vegetable garden.Express the area A of the garden in terms of its length (x)
*Saturday, March 23, 2013 at 4:42pm*

**College math**

Rebekah's recipe for 41/2 dozen cookies call for 6 cups of sugar. How many cups of sugar are needed to make 8 dozen cookies?
*Saturday, March 23, 2013 at 4:23pm*

**psychology**

2. Last week, Roger suddenly quit his job. He told his family he had decided to learn carpentry. He purchased a truckload of wood and nails, which now sits in his driveway because he changed his mind and decided to enroll in a school for massage therapy. The school confirms ...
*Friday, March 22, 2013 at 9:21am*

**college**

A solid is known to be either BaCO3 or CaCO3. It is dissolved in 6 M acetic acid. A pale yellow precipitate forms when K2CrO4 solution is added. The subsequent flame test with that precipitate shows an orange-red color. Which cation is present? Briefly explain
*Friday, March 22, 2013 at 12:28am*

**college algebra**

x^3+4x^2-2x-3 ; x+1 factor theorum to decide whether or not second polynomial is a factor of the first.
*Thursday, March 21, 2013 at 8:01am*

**college stats**

iN manoa Valley on the island of Oahu Hawaii the annual rainfall averages 43.6 inches with a standard diviation 7.5 inches. for a given year, find the probability that the annual rainfall will be..(solve for a,b,and c) show work a)more than 53 inches b)less than 28 inches c)...
*Thursday, March 21, 2013 at 12:49am*

**College Math**

I need help solving these problems by using the substitution problem 2x-3y=16 5x+2y=21
*Wednesday, March 20, 2013 at 11:28am*

**college- find domain and range**

y= X^2 + X - 500/10 and y is the number of milliliters of fuel consumed per second and X is the speed of the engine in revolutions per minute. If the engine operates between 100 revolutions per minute and 400 revolutions per minute what is the domain and range Is this correct...
*Wednesday, March 20, 2013 at 11:12am*

**college physics**

If the initial tension in the string is (2.10+/- 0.02)N, what is the tension that would double the wave speed?
*Wednesday, March 20, 2013 at 1:28am*

**college chemistry**

for my lab i used 2.0mL of NaOH solution and it doesnt have a density in (g/mL)... is there still a way to calculate the moles to it? unless there is a density to NaOH
*Tuesday, March 19, 2013 at 9:33pm*

**English**

Please help with this question that has been bothering me! I take bio college class and we have graduate/student assistant for labs & when taking an exam. The professor is never there during those sections.Due to my low exam results,I feel I'm not being graded on fairly ...
*Tuesday, March 19, 2013 at 8:36pm*

**Arithmetic**

A box in a college bookstore contains books, and each book in the box is a history book, an English book or a science book. If one-third of these books are history books and one-sixth are English books, what fraction of the books are science books? A. 1/3 B. 1/2 C. 2/3 D. 3/4...
*Tuesday, March 19, 2013 at 10:24am*

**Arithmetic**

A box in a college bookstore contains books, and each book in the box is a history book, an English book or a science book. If one-third of these books are history books and one-sixth are English books, what fraction of the books are science books?
*Tuesday, March 19, 2013 at 10:23am*

**college algebra**

Solve, what is the easiest way to solve this equation? 9x^4+4=13x^2 and x^6-19x^3=216 Thanks, in advance..
*Tuesday, March 19, 2013 at 12:08am*

**college physics**

for the resonance frequencies: fn=nv/2L If the speed (v) doubles my fn will also doubles ? why?
*Monday, March 18, 2013 at 10:03pm*

**College Math - Probability**

Briefly summarize the experimental design for deciding whether a proposed treatment should go on for further study. Note where independence came into play. If you were more conservative and reject the treatment only if the probability that it is 30% effective is less than .05 ...
*Monday, March 18, 2013 at 7:56pm*

**College Mathematics**

Counting principles and permutations. A social security number consists of 9 digits. How many different social security numbers are possible if repetition of digits is permitted. digits 0-9
*Monday, March 18, 2013 at 2:09pm*

**College Mathematics**

U.S. Presidents. The ages of the 44 presidents at their first inauguration (as of 2011) are: 57 57 49 52 50 42 54 55 64 61 61 64 56 47 51 51 56 46 57 54 50 46 55 56 60 61 54 57 68 48 54 55 55 62 52 47 58 51 65 49 54 51 43 69 a. Construct a frequency distribution with a first ...
*Monday, March 18, 2013 at 2:04pm*

**College Mathematics**

Counting Principles and Permutation. A social security number consists of 9 digits. How many different social security numbers are possible if repetition of digits is permitted
*Monday, March 18, 2013 at 1:26pm*

**college physics**

If I travel to Mexico and buy a 55g gold braclet for 20 dollars and take the braclet and submerge it in water starting out with 50cc and after it is submerged in the water it is 52.8cc. What is the buoyant force on the braclet? I also need to know if the braclet is real gold. ...
*Monday, March 18, 2013 at 1:07pm*

**college physics**

If a coyote is standing at the top of a 125 m cliff getting ready to drop a 230 kg boulder on a road runner. What is the potential energy of the boulder just as he is ready to drop it? What is the kinetic energy of the boulder at the instant it hits the ground? How fast is the...
*Monday, March 18, 2013 at 12:54pm*

**college physics**

If a girl drops a coin into a wishing well. After exactly 5 seconds she hears it splash into the water. How fast was the coin going after 1 second? After 2 seconds? How fast was the coin going when it hit the water? How far down is the water? Could you please help with the ...
*Monday, March 18, 2013 at 12:46pm*

**math**

A community college has 2,000 students and 50 instructors. Next year the enrollment will be 6,000. How many new instructors should be hired if the college wants to keep the same studentto instructor ratio?
*Monday, March 18, 2013 at 12:39pm*

**college physics**

if a girl pulls on a 15 kg wagon with a constant horizontal force of 35N.Her friend pushes on the wagon in the same direction with a constant horizontal force of 10 N. and there is a friction force of 15 N. I need to draw a diagram of this problem and calculate the Net Force ...
*Monday, March 18, 2013 at 12:39pm*

**college algebra**

I need help bad. Don't know which formula to use. Please explain step by step. 2x^2-12x+19. Find the interval where f is increasing and decreasing.
*Monday, March 18, 2013 at 2:04am*

**College Math**

A ice cream shop sells 4 flavors of ice cream, assume that all orders of two scoops are equally likely, what is the probability that in an order of two scoops both are of the same flavor?
*Sunday, March 17, 2013 at 10:49pm*

**College Algebra**

a box with an open top is constructed from a rectangular piece of cardboard with dimensions 14 inches by 18 inches by cutting out and discarding equal squares of side x at each corner and then folding up the sides as in the figure. The cost to create such a box is 2.50 per ...
*Sunday, March 17, 2013 at 6:37pm*

**College Chemistry/Lab Math**

I think I have this problem figured out correctly, but is there anyone who can tell me if I'm doing something wrong. The question is... "One troy ounce of gold is worth $380. There are 33.8 grams per troy ounce. You have a stock colloidal solution of a very fine gold ...
*Sunday, March 17, 2013 at 1:46pm*

**math**

From a survey of 100 college students, a marketing research company found that 85 students owned iPods, 45 owned cars, and 35 owned both cars and iPods. (a) How many students owned either a car or an iPod (but not both)? 1 students (b) How many students do not own either a car...
*Sunday, March 17, 2013 at 12:35pm*

**ECONOMICS**

Suppose your college charges you separately for tuition and for room and board. What is a cost of attending college that is not an opportunity cost? What is an explicit opportunity cost of attending college? What is an implicit opportunity cost of attending college?
*Friday, March 15, 2013 at 11:44pm*

**college physics**

if a 12kg ball rolls down a ramp at 3 m/s and crashes into a pillow and it takes 0.65 s to stop the ball what is the momentum of the ball and the force exerted by the pillow? I would like to know the formula on how to figure this out.
*Friday, March 15, 2013 at 7:12pm*

**College algebra**

Given the following quadratic equation find. a) the vertex b) the axis of symmetry c) the intercepts d) the domain e) the range f) the interval where the function is increasing g) the interval where the function is decreasing h) graph the function y= -x^2-6x
*Friday, March 15, 2013 at 5:45pm*

**College algebra**

Find the value of f(x) = -3x^2 + 12x-8
*Friday, March 15, 2013 at 2:41pm*

**College algebra**

Determine without graphing, whether the given function has a maximum value and then find the value. f(x)=3x^2+18x-6
*Friday, March 15, 2013 at 11:21am*

**College algebra!**

For the linear function f(x) = 5x + 3 (a) Determine the slope and y-intercept (b) Use the slope and y-intercept to graph the linear function. (c) Determine the average rate of change of the function (d) Determine whether the linear function is increasing, decreasing, or constant.
*Friday, March 15, 2013 at 10:41am*

**College algebra**

Answer the questions about the following functions. f(x) = 14^2/x^4 + 49 (a) Is the point (-sqrt 7,1) on the graph of f? (b) If x=1, what is f(x)? What point is on the graph of f? (c) If f(x)=1, what is x? what point(s) are on graph of f? (d)What is the domain of f? (e) list ...
*Thursday, March 14, 2013 at 11:05pm*

**calculus**

A new college textbook edition typically generates most of its sales in the year of its publication. Sales drop off in subsequent years as a result of competition from the used book market. Suppose that the annual sales of a particular textbook may be modeled by S(t) = 30,000 ...
*Thursday, March 14, 2013 at 12:17pm*

**calculus**

A new college textbook edition typically generates most of its sales in the year of its publication. Sales drop off in subsequent years as a result of competition from the used book market. Suppose that the annual sales of a particular textbook may be modeled by S(t) = 30,000 ...
*Wednesday, March 13, 2013 at 9:32pm*

**can some1 plz recheck my answers**

1. Which of the following is a specific goal? A. I will pass as many of my courses as possible. B. I will finish my college degree. C. I will devote Wednesday this week to work on my English research paper. D. To become a doctor is my goal. is it C 2. Which goal is realistic? ...
*Wednesday, March 13, 2013 at 4:18pm*

**English**

1. Which of the following is a specific goal? A. I will pass as many of my courses as possible. B. I will finish my college degree. C. I will devote Wednesday this week to work on my English research paper. D. To become a doctor is my goal. is it C 2. Which goal is realistic? ...
*Wednesday, March 13, 2013 at 4:04pm*

**College Chemistry**

Calculate activities of Ca2+ and F- and the solubility of fluorite (CaF2) in pure water at 25C without regard to possible hydrolysis. Assume that all activity coefficients are equal to one. Express the solubility of fluorite in terms of mol/L and g/L.
*Wednesday, March 13, 2013 at 3:44pm*

**English**

1. Which of the following is a specific goal? A. I will pass as many of my courses as possible. B. I will finish my college degree. C. I will devote Wednesday this week to work on my English research paper. D. To become a doctor is my goal. is it C 2. Which goal is realistic? ...
*Wednesday, March 13, 2013 at 3:40pm*

**College physics**

A toroidal solenoid has a mean radius of 8.00cm and a cross-sectional area of 4.80cm^2 and is wound uniformly with 90.0 turns. A second coil with 500 turns is wound uniformly on top of the first What is the mutual inductance of these coils?
*Wednesday, March 13, 2013 at 3:26pm*

**College Physics**

A 22 μF capacitor and a 5.20 mH inductor are connected in series with an open switch. The capacitor is initially charged to 6.70 μC. What is the angular frequency of the charge oscillations in the capacitor after the switch is closed? W = _____ rad/s
*Wednesday, March 13, 2013 at 3:09pm*

**calculus**

A new college textbook edition typically generates most of its sales in the year of its publication. Sales drop off in subsequent years as a result of competition from the used book market. Suppose that the annual sales of a particular textbook may be modeled by S(t) = 30,000 ...
*Wednesday, March 13, 2013 at 12:32pm*

**English**

I split this sentence into 2 parts is the colon use correct between football and There's? I love college football: There’s nothing like the sound of a fully packed stadium.
*Wednesday, March 13, 2013 at 12:02pm*

**College Chemistry**

2NO(g)+O2(g)<->2NO2(g) has KP = 2.77 × 1011 at 25 °C. Suppose a mixture of the reactants is prepared at 25 °C by transferring 0.943 g of NO and 589 mL of O2 measured at 30.7 °C and 829 torr into a 1 L vessel. When the mixture comes to equilibrium, what ...
*Tuesday, March 12, 2013 at 9:55pm*

**College Mathematics**

This is a repost. I posted a question 2 days ago and the response was wrong. The question was on Probability. The question was One card is selected from a deck of playing cards. Determine the probability of selecting a jack OR a club. use this rule P(A or B) = P(A) + P(B) - P(...
*Tuesday, March 12, 2013 at 1:10pm*

**College Mathematics**

Probability. Select one card. One card is selected from a deck of playing cards. Determine the Probability of selecting a Jack OR a club. P(AorB)= P(A) + P(B) - P(A and B)
*Tuesday, March 12, 2013 at 11:04am*

**College Math**

Find the area of a triangular piece of carpet that has a 12-inch base and is 18 inches high.
*Monday, March 11, 2013 at 3:59pm*

**valculus**

A new college textbook edition typically generates most of its sales in the year of its publication. Sales drop off in subsequent years as a result of competition from the used book market. Suppose that the annual sales of a particular textbook may be modeled by S(t) = 30,000 ...
*Monday, March 11, 2013 at 3:09pm*

**English**

i have a hard time calculating my grade & am in college. Please tell me the grade I have so far & will have, thank you!365 points in the course is needed. Lecture exams and quizzes are worth about 60% of the total grade &90 ≤ A 80 ≤ B < 90 70 ≤ C < 80 ...
*Monday, March 11, 2013 at 12:50pm*

**College Mathematics**

(odds) Playing Bingo:When playing bingo, 75 balls are placed in a bin and balls are selected at random. Each ball is marked with a letter and a number as indicated in the following chart: B: 1-15 I: 16-30 N:31-45 G:46-60 O:61-75. For example there are balls marked B1,B2 up to ...
*Monday, March 11, 2013 at 12:10am*

**College Mathematics**

Probability: "or" and "and" problem. Select one card, one card is selected from a deck of playing cards. Determine the probability of selecting a jack or a club.
*Sunday, March 10, 2013 at 11:37pm*

**college general chemistry**

3Co(NO 3 ) 2 (aq) + 2Na 3 PO 4 (aq) &---> Co 3 (PO 4 ) 2 (s) + 6NaNO 3 (aq) how do I find the molar mass of precipitate.X hydrate
*Sunday, March 10, 2013 at 1:48pm*

**stats**

The following data were obtained from a survey of college students. The variable X represents the number of non-assigned books read during the past six months. x 0 1 2 3 4 5 P (X=x) 0.20 0.25 0.20 0.15 0.10 0.10 Find P( X > 1)
*Sunday, March 10, 2013 at 8:46am*

**College Algebra**

Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions. 2x2 = -2 -5 Thank you
*Saturday, March 9, 2013 at 4:42pm*

**college physics**

small one-cylinder gasoline engines sometimes use a device called a magneto to supply current to the spark plug. A permanent magnet is attached to the flywheel, and a stationary coil is mounted adjacent to it. Explain how this device is able to generate current. What ha[[ens ...
*Friday, March 8, 2013 at 3:22pm*

**college algebra**

An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on advertising (in dollars) by the following formula: N = 2,500 + 400 ln a (a ¡Ý 1) How many units are sold after spending $1,000? (Round your ...
*Friday, March 8, 2013 at 1:24pm*

**homework**

A trigangular region of a community college parking lot was measured. The measure of the first angle of this triangle is doubled the measure of the second angle. The measure of the third angle is 89 degree greater than double the measure of the first angle. what is the ...
*Friday, March 8, 2013 at 2:53am*

**college physics**

A long, straight, cylindrical wire of radius R carries a current uniformly distributed over its cross section. 1. At what location is the magnetic field produced by this current equal to quarter of its largest value? Consider points inside the wire. 2.At what location is the ...
*Thursday, March 7, 2013 at 3:36pm*

**College Mathematics**

write the statement in symbolic form. Let p: the temperature is 90 degrees Let q: The air conditioner is working r: the apartment is hot. If the apartment is hot and the air conditioning is working, then the tempurature is 90 degrees.
*Wednesday, March 6, 2013 at 1:24pm*

**MONGU COLLEGE **

A 1200 ohms resistance of AC 0.07H inductance coil and a 0.001mF capacitor are in series across a 120V source determine. a.frequency. b.current. c.impedance.
*Tuesday, March 5, 2013 at 5:21pm*

**MONGU COLLEGE **

A resistor of 15 ohms and an inductor of 4H and capacitor of 25 micro F are connected in series across 230V AC supply calculate. a.The frequency b.current c.voltage drop or pd across inductance.
*Tuesday, March 5, 2013 at 5:15pm*

**Math College**

Solve the Matrix 12 -3 8 01 2 4 00 1 2
*Tuesday, March 5, 2013 at 4:16pm*

**College math**

if f(x) =x+3/7 and g(x) =4+5x find (gof) (x)
*Tuesday, March 5, 2013 at 1:29pm*

**College Math**

10a+ 10c + s = 180 5a + 3c + 2s = 500 a = 10c
*Tuesday, March 5, 2013 at 1:20pm*

**College math**

10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c
*Tuesday, March 5, 2013 at 1:10pm*

**College math**

10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c
*Tuesday, March 5, 2013 at 1:10pm*

**College math**

10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c
*Tuesday, March 5, 2013 at 1:10pm*

**College math**

10+ 10 + s = 180 5a + 3c + 2s = 500 a = 10c
*Tuesday, March 5, 2013 at 1:10pm*

**college math**

ticket for a concert cost $5.00 for adults, $3.00 for children and $2.00 for senior citizens. Revenue was $500.00 for 180 tickets. 10 times more adults than children attended. How many senior tickets were sold?
*Tuesday, March 5, 2013 at 12:38pm*

**College Mathematics**

write the statement in symbolic form. Let p: The Temperatue is 90 degrees Let q: The air conditioner is working Let r: If the apartment is hot and the air conditioner is working, then the temperature is 90 degrees.
*Tuesday, March 5, 2013 at 12:23pm*

**College Mathematics**

write the statement in symbolic form. Let p: The Temperatue is 90 degrees Let q: The air conditioner is working Let r: If the apartment is hot and the air conditioner is working, then the temperature is 90 degrees.
*Tuesday, March 5, 2013 at 12:22pm*

**Reading**

Not sure which answers to use.. please help: choose from these words: deficit, dissent,lucrative and agnostic.. 1& 2: My uncle decided to splurge and _____ with a country club because golf is his favorite_________.(Dissent & lucrative) 3 & 4 : Because my father_______s to make...
*Tuesday, March 5, 2013 at 12:08pm*

**College Mathematics**

Construct a truth table for the statement (p<--->q)--->p
*Tuesday, March 5, 2013 at 1:52am*

**algebra**

Andrew has a four-year college loan for $20,000. The lender charges a simple interest rate of 5 percent. How much interest will he have to pay? simple interest = P × r × t
*Monday, March 4, 2013 at 3:51pm*

**college chemistry**

if my sublimation apparatus imploded, what was the cause of it?
*Monday, March 4, 2013 at 3:13pm*

**College Algebra**

A calculator company produces a scientific calculator and a graphing calculator. Long-term projections indicate an expected demand of at least 100 scientific and 80 graphing calculators each day. Because of limitations on production capacity, no more than 200 scientific and ...
*Monday, March 4, 2013 at 3:13pm*

**College Algebra**

A calculator company produces a scientific calculator and a graphing calculator. Long-term projections indicate an expected demand of at least 100 scientific and 80 graphing calculators each day. Because of limitations on production capacity, no more than 200 scientific and ...
*Monday, March 4, 2013 at 11:12am*

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