Tuesday

October 21, 2014

October 21, 2014

Post a New Question | Current Questions

**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*

**college algebra**

given the following polynomial find the zero and multiply of each were the graph touches the x axis number of turning points fx =(x-4)(x^2-25)
*Monday, March 4, 2013 at 11:01am*

** 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, and g. the interval where the function is decreasing h. Graph the function. y= -x^2+2x+8
*Monday, March 4, 2013 at 10:56am*

**Stat**

1. For the following scores, X Y 1 6 4 1 1 4 1 3 3 1 Sketch a scatter plot and estimate the value of the Pearson correlation. b. Compute the Pearson correlation 2. For the following set of scores, X Y 6 4 3 1 5 0 6 7 4 2 6 4 a. Compute the Pearson correlation. b. Add 2 points ...
*Monday, March 4, 2013 at 1:06am*

**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 ...
*Sunday, March 3, 2013 at 8:51pm*

**statistics**

In order to plan for parking and transportation needs at a college, administrators asked students how they got to school. Some came by bus, some came by car and the others used “personal “ transportation – bikes, skateboards, or walked. The following table ...
*Sunday, March 3, 2013 at 7:18pm*

**College physics**

Open Question: Find the electric field between the plates of a capacitor given the following:? (1) C= 10pF (2) the capacitor is connected to a 25 V battery (3) there is a vacuum between the capacitor plates (4) plate separation is 2 mm
*Sunday, March 3, 2013 at 6:40pm*

**College physics**

Open Question: Two equal point charges of 5 µC are on the horizontal axis. One charge is at -10 cm, the other is at +10 cm.? These two charges don't move, they are STUCK, take the potential to be zero at infinity. Find the potential at the following coordinates: (0,0...
*Sunday, March 3, 2013 at 6:39pm*

**College Physics**

A proton is put on the positive Y axis a large distance (100km) from the origin. What is the minimum speed required in the - Y direction so the proton will just reach the point (0,20) cm?
*Sunday, March 3, 2013 at 6:01pm*

**MONGU COLLEGE **

During an experiment conducted on the effort E to lift a load W when using a simple the following values were recorded. ………………
3;………………………………………&#...
*Thursday, February 28, 2013 at 6:13pm*

**MONGU COLLEGE **

During an experiment conducted on the effort E to lift a load W when using a simple the following values were recorded. ………………
3;………………………………………&#...
*Thursday, February 28, 2013 at 6:13pm*

**MONGU COLLEGE**

Uksis m16 ussr adfd ssa f2b
*Thursday, February 28, 2013 at 6:04pm*

**MONGU COLLEGE **

In a single swing pendulum moves through an angle of 1.92 Radian. (a). Determine the length of arc treated by the pendulum Bob. (b). The area of the sector if the length of the pendulum is 13.2cm.
*Thursday, February 28, 2013 at 5:00pm*

**MONGU COLLEGE **

In a single swing pendulum moves through an angle of 1.92 Radian. (a). Determine the length of arc treated by the pendulum Bob. (b). The area of the sector if the length of the pendulum is 13.2cm.
*Thursday, February 28, 2013 at 5:00pm*

**general chemistry College**

Which of the following mixture would be most likely to produce carbon dioxide? Explain Why? a. magnesium and nitric acid: Mg+ HNO3 b. sodium carbonate and sufuricacid: Na2CO3+H2SO4 c. H2O+ Cu
*Wednesday, February 27, 2013 at 11:05pm*

**general chemistry College**

Which of the following mixture would be most likely to produce carbon dioxide? Explain Why? a. magnesium and nitric acid: Mg+ HNO3 b. sodium carbonate and sufuricacid: Na2CO3+H2SO4 c. H2O+ Cu
*Wednesday, February 27, 2013 at 11:04pm*

**college algebra**

I need to graph y=2f(x+2)-3 and then graph f(-x) Where do I start?
*Wednesday, February 27, 2013 at 7:48pm*

**college algebra**

I need to graph y=2f(x+2)-3 and then graph f(-x) Where do I start?
*Wednesday, February 27, 2013 at 7:20pm*

**college algebra**

Transformation f ty transform graph y=x^2 or y=|x| graph for f by hand f(x)=2|x-6|-4
*Wednesday, February 27, 2013 at 7:12pm*

**MATHS MONGU COLLEGE **

A cylinder whose volume is 386,000m3 has it's length 1.3 times its diameter. calculate the diameter of the cylinder given that the volume V = 3.142r2h.
*Wednesday, February 27, 2013 at 5:00pm*

**MATHS MONGU COLLEGE **

Express (a) 50 km/hour mm/s. (b) 60 litres in m3 cube if 1 litre = 0.001m3.
*Wednesday, February 27, 2013 at 4:48pm*

**MATHS COLLEGE. MONGU **

one to increased costs the labour charge of a certain establishment from $1.20 to $1.40 per hour .what is the percentage increase.
*Wednesday, February 27, 2013 at 4:41pm*

**College Algebra**

Alfred has just developed a new super ball and you have been asked to test its rebound capabilities. From your experiment you have found if you drop the ball from a height of 250 centimeters the first bounce average is 180 cm. rebound ratio = ? Using this rebound ratio, ...
*Wednesday, February 27, 2013 at 8:59am*

**college algebra**

Some bank robbers leave town, speeding at 70mph. Ten minutes
*Wednesday, February 27, 2013 at 1:30am*

**economics**

šPlease explain these question in words! š How will demand and supply curve shift? 1. Labor market for math and science teachers when wages available in private industries utilizing these skills rise. 2. Labor market for university professors when college...
*Wednesday, February 27, 2013 at 1:28am*

**college chemistry**

during a liquid-liquid extraction the procedure often calls for the use of saturated NaCl when ether is used as the extraction solvent, but not when dichloromethane is used. why?
*Tuesday, February 26, 2013 at 11:28pm*

**College Algebra**

Develop a tree diagram for tossing two, eight-sided gaming dice to figure out how many possibilities there are. Discuss the purpose of using such a visual in working out probability.
*Tuesday, February 26, 2013 at 7:54pm*

**College Algebra**

Provide one example to show how you can use the Expected Value computation to assess the fairness of a situation (probability experiment). Provide the detailed steps and calculations.
*Tuesday, February 26, 2013 at 7:53pm*

**MONGU COLLEGE**

find the line perpendicular and passes through (0,0) 5x-2y =10
*Tuesday, February 26, 2013 at 6:47pm*

**MONGU COLLEGE**

1.Determine the sum of infinity of the series 4,2,1
*Tuesday, February 26, 2013 at 6:38pm*

**college physics**

You are in the lab with a 10 V battery. You have a 10 W light bulb and you want to put 0.75 A of current through the light bulb and 7.5 V across the light bulb. This will allow the light bulb to have a brightness proportional to 5.625 W. Assuming any resistors that you need, ...
*Tuesday, February 26, 2013 at 6:20pm*

**College physics**

According to test performed by the manufactures, an automobile with an initial speed of 75 km/h has a stopping distance of 25 m on a level road. assuming that no skidding occurs during breaking, what is the value of μ , between the wheels and the road required to achieve ...
*Tuesday, February 26, 2013 at 6:16pm*

**help college algebra**

given the following piecewise function f(x) = -x+1 for x<0 -1 for 0<x<3 -2x for x>3 find the domain find the range find the intercept d) is f continuous on it domain if not sate where f is dicontinous
*Tuesday, February 26, 2013 at 10:59am*

**college algebra**

given the function fx=x^3+x a) find the rate of change between the two stated values for x: 1 to 2 B)find the equation of a secant line containing the given points (1,f(1))and (2,f(2)
*Tuesday, February 26, 2013 at 10:46am*

**college algebra**

Transformation of ty then transformations of the graphs y=x^2or y=|x| to sketch a graph of f by hand. f(x)=2|x-6|-4
*Monday, February 25, 2013 at 7:02pm*

**College Algebra help please**

I dont understand this. The question is use the remainder theorem to evaluate P(x) as given. 1. P(x)=3x^3+11x^2+2x-16 and it gives me P(1/3)
*Monday, February 25, 2013 at 6:08pm*

**college algebra**

please help me solve this equation x-1/3x-1/2x-5=0
*Monday, February 25, 2013 at 5:18pm*

**math**

Sonja needs to borrow $2,251 to pay for her college classes. Sallie Mae is offering her a 4.5% simple interest loan with an interest charge of $405.18 over the life of the loan. How many years is Sallie Mae giving her to pay back the loan with interest?
*Monday, February 25, 2013 at 4:17pm*

**finance**

You have chosen biology as your college major because you would like to be a medical doctor. However, you find that the probability of being accepted to medical school is about 6 percent. If you are accepted to medical school, then your starting salary when you graduate will ...
*Monday, February 25, 2013 at 3:55pm*

**Staistcs**

Problem 4 Refer again to the distribution table in Problem 3. : 3.0 points Each part is worth 1 point. a) In the United States, high school diplomas are awarded after 12 years of schooling. Which interval contains the adults who had completed 12 years of school and did not ...
*Monday, February 25, 2013 at 3:29am*

**college physics**

A 4m long copper wire has a diameter of 2mm and carries a current of 10A. Determine the ff: a. current density in the wire b. electric field c. potential difference between the ends of the wire d. resistance of the wire
*Monday, February 25, 2013 at 2:04am*

**college algebra**

If a rocket is propelled upward from ground level, its height in meters after t seconds is given by h=-9.8t^2+88.2t. During what interval of time will the rocket be higher than137.2m? Do I set it up like this? -9.8(1)^2+88.2(1)+137.2 = 215.6 Then h=b/2a=9.8/215.6=22m 137.2+22=...
*Monday, February 25, 2013 at 12:55am*

**college general chemistry**

calculate the lowest whole number ratio of Moles of Mg/moles of O average of Moles of Mg/Moles of O Trial 1 mass of empty crucible and lid= 36.560 mass of Mg=0.348 mass of crucible, lid, and product=38.229 Trail 2 mass of empty crucible and lid=32.221 mass of Mg=0.340 mass of ...
*Monday, February 25, 2013 at 12:54am*

**college general chemistry**

calculate the lowest whole number ratio of Moles of Mg/moles of O mass of empty crucible and lid= 36.560 mass of Mg=0.348 mass of crucible, lid, and product=38.229
*Monday, February 25, 2013 at 12:51am*

**Math Helppp**

The College Board, which are administered each year to many thousands of high school students, are scored so as to yield a mean of 550 and a standard deviation of 100. these scores are close to being normally distributed. what percentage of the scores can be expected to ...
*Sunday, February 24, 2013 at 9:28pm*

**Pacific Union College**

Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 17.5 g of biphenyl in 28.8 g of benzene?
*Sunday, February 24, 2013 at 11:26am*

**college chemistry**

Why is it that sodium chloride or acetic acid can't bee steam distilled??
*Sunday, February 24, 2013 at 12:34am*

**College Physics PLEASE HELP**

A cylindrically shaped piece of collagen is being stretched by a force that increases from 0 to 3.0 x 10^-2 N. The length and radius of the collagen are 2.5 and 0.091 cm. Young's Modulus is 3.1 x 10^6 N/m^2. a.) If the stretching obeys Hooke's Law, what is the spring ...
*Saturday, February 23, 2013 at 9:53pm*

**College Physics PLEASE HELP**

A spring stretches 0.150 m when a 0.30 kg mass is hung from it. The spring is then stretched an additional 0.100 m from this equilibrium point and released. Determine a). the spring constant, k, b). the maximum velocity of the mass, c. ) the maximum acceleration of the mass, d...
*Saturday, February 23, 2013 at 9:51pm*

**College Algebra**

need help finding the distance using the distance formula please!!! (0,0) (x,y)
*Saturday, February 23, 2013 at 9:30pm*

**Math Helpppp**

The College Board, which are administered each year to many thousands of high school students, are scored so as to yield a mean of 550 and a standard deviation of 100. these scores are close to being normally distributed. what percentage of the scores can be expected to ...
*Saturday, February 23, 2013 at 8:33pm*

**college algebra**

now i understand both intersection and union but not with an infinity. how do i figure this out (-infinity,4)n(0,infinity)
*Saturday, February 23, 2013 at 7:28pm*

**Science**

What did Oprah Winfrey do for 152 exceptional girls in South Africa? Select one: a. She gave each of them college scholarships. b. She helped them attend school in the United States. c. She invited them to attend her new school. d. She convinced them to leave South Africa. ...
*Saturday, February 23, 2013 at 7:14pm*

**College Math**

Could someone please explain the union to me. I dont understand. I get the intersection ones but not union. HElp me? Ecample: (-1,1)U[0,6]
*Saturday, February 23, 2013 at 7:13pm*

**College Algebra**

Hello, I have been trying to do my math homework for a few hours now and can not figure out how to find the indicated intersection or union in interval notation. Example: (-1,5)n[0,8) Please help me!!
*Saturday, February 23, 2013 at 6:14pm*

**College math **

Can someone please assist me The problem reads "use the rule of 78 to find the payoff amount for the loan paid in full before the date" Finance charge: $717 Total number of payments 41 Amount per payment $155 Remaining payments when paid in full 10 Please help. ...
*Friday, February 22, 2013 at 10:43pm*

**college algebra 1111**

solve. 2z^2-7=-48
*Friday, February 22, 2013 at 12:41pm*

**science**

The mean weight of 500 male students at a certain college is 151 pounds (lb), and the standard deviation is 15 lb. Assuming that the weights are normally distributed, find the probability of students weight (a) between 121 and 155 lb (b) more than 185 lb. c) if 4% of the ...
*Friday, February 22, 2013 at 7:06am*

**college algebra**

driving along a crowded freeway you notice that it takes a time to go from one mile marker to the next. when you increase your speed by 8.4 mi/hr the time to go one mile decreased by 14 seconds. What was your original speed?
*Thursday, February 21, 2013 at 7:41pm*

**College Physics **

Find the magnitude of the magnetic flux through the floor of a house that measures 21m by 13m . Assume that the Earth's magnetic field at the location of the house has a horizontal component of 2.4×10−5 T pointing north, and a downward vertical component of 4.3...
*Thursday, February 21, 2013 at 7:26pm*

**college chemistry**

how to make a 1:8 dilution of chemical Y. You have 350 mililiters of chemical Y. how much diluent do you need?
*Thursday, February 21, 2013 at 6:40pm*

**Math**

A college student decides that school work limits him to a total of no more than ;36 hours per week at his two parttime&...
*Thursday, February 21, 2013 at 3:55pm*

**Math**

A college freshman must take a science course, a humanities course, an elective course, and a mathematics course for the first term of the school year. If he or she may select any of the six science courses, any of the four humanities courses, any of the five elective courses...
*Thursday, February 21, 2013 at 4:06am*

**college algebra**

Just che king to see if I did this right. f(x)=(x-4)^2+6 Graph f(x) I graphed 1quadrant 4 up 6 Identify vertex (4,6) Identify intervals f(x) is increasing and decreasing D [-00,6) I (6,00] Checking to see if I figured this right. Thanks
*Wednesday, February 20, 2013 at 7:05pm*

**college algebra**

A farmer has 1000 feet of fence a rectangular plot of land. The plot lies along a river so that only has three sides need to be fenced. Find the largest area that can be fenced. What's the best way to solve this?
*Wednesday, February 20, 2013 at 5:05pm*

**College Finance**

1.A recent edition of The Wall Street Journal reported interest rates of 10.75 percent, 11.10 percent, 11.48 percent, and 11.75 percent for 3-, 4-, 5-, and 6-year Treasury security yields, respectively. According to the unbiased expectation theory of the term structure of ...
*Tuesday, February 19, 2013 at 11:51pm*

**reading**

(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 ...
*Tuesday, February 19, 2013 at 8:14pm*

**reading**

(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 ...
*Tuesday, February 19, 2013 at 8:14pm*

**randhills college life orientation**

3 environmental health hazard that cause ill health, crises, and or disasters within your community or any other community within south Africa and globally?
*Tuesday, February 19, 2013 at 6:11pm*

**college algebra**

1984-1994 the equation the number of aids cases can be modeled by the equation C(x)=3034x^2+14,018x+6400 X represents years after 1984 estimate the year when 200,000 aids cases had been diagnosed.
*Tuesday, February 19, 2013 at 3:18am*

**college algebra**

1984-1994 the equation the number of aids cases can be modeled by the equation C(x)=3034x^2+14,018x+6400 X represents years after 1984 estimate the year when 200,000 aids cases had been diagnosed.
*Tuesday, February 19, 2013 at 2:45am*

**college algebra**

Solving for a variable 4x^2+3y=y+1/3 I'm stuck thanks
*Monday, February 18, 2013 at 8:37pm*

**College Algebra**

Write the equation of the circle in standard form. Find the center, radius, intercepts, and graph the circle. x^2+y^2+16x-18y+145=25
*Monday, February 18, 2013 at 7:57pm*

**college algebra**

Finding domain f(x)=1/x^2-5 Can't remember how to solve, your help is appreciated:-)
*Monday, February 18, 2013 at 7:34pm*

**College Algebra**

A company is planning to produce and sell a new line of tvs. The fixed cost for the company is $400,440 and each tv cost $845 to produce. If they project the sales price of 1200, how many tvs will need to be sold to break even? If they decide to reduce the price to 1199.99, ...
*Monday, February 18, 2013 at 6:27pm*

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Post a New Question | Current Questions