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October 2, 2014

Homework Help: College

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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 li​mits him to a total&​nbsp;of no more than ​;36  hours per week at hi​s 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

College Algebra
Find the average rate of change for function f(x)=3x^(2)-5 at the points x[1]=6 and x[2]=10
Monday, February 18, 2013 at 4:49pm

College Algebra
A company builds bicycles. Their fixed cost is 300,000 and it costs $500 to make each bicycle(labor,materials,etc.) A)What is the cost equation and what is the average cost per bicycle? B)If the revenue equation is -3x^2+3200x where x is the number of bicycles, how many ...
Monday, February 18, 2013 at 1:59pm

College Algebra
Pinocchio has a problem with lying. Everytime he lies, his nose grows. The size of his nose grows inversely to the square of the lying index(less truth is a statement). If his nose grows to 3 inches with a lying index of 2, what will be the lying index if his nose grows to 6 ...
Monday, February 18, 2013 at 11:00am

College Algebra
You have 800 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river,find the length and width of the plot that will maximize the area. What is the largest area that can be enclosed?
Monday, February 18, 2013 at 10:52am

college chemistry
Assuming that 9.0\% of the energy output of a 65W lightbulb is visible light and that the average wavelength of the light is 550 {\rm nm}, how many photons are emitted by the lightbulb each second?
Sunday, February 17, 2013 at 8:50pm

College Algebra
This is my question 2x^2-8x=-25 I cant seem to figure out how to solve for x?
Sunday, February 17, 2013 at 4:18pm

College Algebra
Suppose that the length of a rectangle is 21 inches and the width is 4 more than one third of the length?
Sunday, February 17, 2013 at 11:46am

College Algebra
A rectangle is bounded by the x-axis and the semicircle Y= SQ RT of 4-x^2. Write the area A of the rectangle as a function of x and determine the domain of the function.
Saturday, February 16, 2013 at 11:38pm

COLLEGE MATH
What is the PROCUREMENT cost of this system? Cost Types Cost (in millions) Research/Development $400 Procurement of Prime mission $800 Procurement of support equipment $100 Procurement of Initial Spares $100 Operations & and Support $70,000 Disposal $100 ANWERS! (A). 800 ...
Saturday, February 16, 2013 at 8:30pm

Westwood college
Sixth Fourth Bank has an issue of preferred stock with a $5.50 stated dividend that just sold for $97 per share. What is the bank’s cost of preferred stock?
Saturday, February 16, 2013 at 5:44pm

college algebra
Axis symmetry x=3 passing thru (3,1) and (1,9) Not sure how to solve
Saturday, February 16, 2013 at 1:06pm

math
the hostel of a college having 320 students has a stock of food for 80 days if 20 students leave the hostel after 20 days for how many more days will the food last?
Saturday, February 16, 2013 at 4:29am

college algebra
Axis of symmerty x=3 passing thru (3,1) and (1,9) What is the best way to solve?
Friday, February 15, 2013 at 7:32pm

College Math
What is the PROCUREMENT cost of the below system? Cost Types Cost (in millions) Research/Development $400 Procurement of Prime mission $800 Procurement of support equipment $100 Procurement of Initial Spares $100 Operations & and Support $70,000 Disposal $100 ANWERS! (a) 800 ...
Friday, February 15, 2013 at 3:59pm

Copperbelt international college
A chord PQ of length 5.6cm divides a circle of radius 3.5cm into two segments.calculate the difference in areas between major and minor segment in the circle of chord PQ.
Friday, February 15, 2013 at 1:07am

college physics 1
The coefficient of static friction between a block of wood of mass 29.2-kg and a rough table is 0.51. The table is slowly tilted until the block of wood starts to slide down the surface. At what angle of the table with respect to the horizontal does the wood start to slide? ...
Thursday, February 14, 2013 at 3:21pm

college algebra
Solve equation |x+3|=|2-x| Not sure which way to go to solve. Thanks
Wednesday, February 13, 2013 at 7:28pm

college chemistry 101
why does an opened bottle of carbonated water keep its frizz longer if kept in a refrigerator than if left at room temperature?
Wednesday, February 13, 2013 at 4:03pm

college algebra
Solve absolute value inequality, use interval notations. |4+2x|-3> I know the answer is x>2 or x<-6 But I'm unsure how to solve it. Thanks
Wednesday, February 13, 2013 at 2:57pm

College
A bod of 10kg is traveling in straight line at 10m/s (a)what is de momentum?(b)what is de average force required to increase its velocity 4rom zero to 20m/s in 4seconds?
Wednesday, February 13, 2013 at 9:28am

maths
the heights of female students at a particular college are normally distributed with the mean 169 cm and standard deviation 9 cm. 1) Given that 80% of these female students have a height less than h cm ,find the value of h. 2) Given that 60% of these female students have a ...
Wednesday, February 13, 2013 at 7:11am

college trigonometry
verify identity: (tanx-cotx)/sinxcosx=sec^2x csc^2x
Tuesday, February 12, 2013 at 11:28pm

college chemistry
If i have a highly polar mobile phase, what will happen to the non-polar or less polar compounds during chromatography? will they move less up the TLC plate or actually even more because the mobile phase itself is so polar.
Tuesday, February 12, 2013 at 6:45pm

college Mathematics
I have been trying to figure this out for day's please help if you can. A survey of 59 customers was taken at a book store regarding the type of novels purchased. The survey found 34 customers purchased mysteries, 27 purchased science fiction, 20 purchased romance novels, ...
Tuesday, February 12, 2013 at 10:21am

College Physics 2
A parallel-plate air capacitor is made from two plates 0.250 m square, spaced 0.70 cm apart. It is connected to a 140 V battery. a) What is the capacitance? C = 7.90×10−11 F b) What is the charge on each plate? Enter your answer as an absolute value of charge. Q = ...
Monday, February 11, 2013 at 9:09pm

college chemistry
How will the Rf values be affected if i use a highly polar mobile phase instead of one that has intermediate polarity?
Monday, February 11, 2013 at 4:51pm

college algebar
5< x-2/6 <6
Monday, February 11, 2013 at 1:26pm

Business Calculus
Pam and Tim decide to start saving money for their daughter's college education. They open a college savings plan (529) with a 500 dollars initial investment and next month start to make monthly deposits of 120 dollars. If the account pays 8% compounded monthly, how much ...
Monday, February 11, 2013 at 1:56am

college algebra
Need to solve what are the steps to do so? 1.5<9.1-0.5x<6.8. <they are underlined. Thanks
Sunday, February 10, 2013 at 12:47pm

college algebra
I need to figure out how to solve this equation your help will be much appreciate:-) √5(x-1.2)-√3x<5(x+1.1)
Sunday, February 10, 2013 at 12:45pm

STAT
Functional foods are those containing nutritional supplements in addition to natural nutrients. Examples include orange juice with calcium and eggs with omega-3. Kolodinsky, et al. (2008) examined attitudes toward functional foods for college students. For American students, ...
Sunday, February 10, 2013 at 1:46am

STAT
Do you view a chocolate bar as delicious or as fattening? Your attitude may depend on your gender. In a study of American college students, Rozin, Bauer, and Catanese (2003) examined the importance of food as a source of pleasure versus concerns about food associated with ...
Sunday, February 10, 2013 at 1:43am

college algebra
Please show me the steps to solving this equation:-) √5(x-1.2)-√3x<5(x-1) Your help is greatly appreciated.
Sunday, February 10, 2013 at 1:03am

College Algebra
Hello - I am stuck on this problem and I'm in serious need of some help. I don't understand this question at all. The problem is: Find the equilibrium quantity and equilibrium demand function for the given: Supply: P=45q Demand: P=q^2+10,000
Saturday, February 9, 2013 at 7:40pm

college chem
Biphenyl, C12H10, is a nonvolatile, non ionizing 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 14.3 g of biphenyl in 25.8 g of benzene?
Saturday, February 9, 2013 at 5:42pm

college algebra
Write an equation of the line parallel to the line given by 3x-2y=8 and having the same y-intercept as the line given by 2y+3x=-4 (show work) I am stuck with this problem. Can you please show me how to do these types of equations? Thank you
Saturday, February 9, 2013 at 1:53pm

College Algebra
If the length of molding to create the frame is 96 inches. If the frame surrounding the picture is 3.5 inches wude and the length is 6 inches longer than the width, what are the dimensions (length and width) of the picture that could be placed inside?
Friday, February 8, 2013 at 6:23pm

College Algebra
for the sets {1,3,5,7,9} and {1,2,3,4,5} Define the ¿ and the U.
Friday, February 8, 2013 at 6:15pm

7th grade language arts Ms. Sue please
1. Which of the following is not a part of evaluating sources? (1 point) checking the author's credentials questioning possible bias making sure the information is current agreeing with the author's opinions 2. Which of the following websites would you most likely use ...
Friday, February 8, 2013 at 5:47pm

english (theses writing)
hello! :) I am a freshman college student and I am looking for a thesis topic about civil engineering.Can you give me a topic on my thesis about civil engineering? thanks :)
Friday, February 8, 2013 at 7:39am

College Algebra
The base of a 28 foot ladder is placed 12 feet from the house. How far up house does the ladder reach? (The answer to the nearest tenth of a foot
Friday, February 8, 2013 at 12:28am

College Algebra
The length of a rectangular carpet is 6 feet greater than twice its width. If the area is 72 square feet, find the carpet's length and width.
Friday, February 8, 2013 at 12:13am

College Algebra
The distance, d, in feet that an object falls in t seconds is modeled by the formula d=16t(2) if you dive from a height of 128 feet, how long will it take to hit the water? (answer may be in simplified radical form).
Friday, February 8, 2013 at 12:08am

urgent urgent urgent
A freshman studying medicine at an Ivy League College is a part of his class crew team and exercises regularly. After a particularly strenuous exercise session, he experiences severe cramps in his thighs and pain in his biceps. •Explain the chemical process that occurred ...
Thursday, February 7, 2013 at 11:42am

college physics
a rice grain is sitting on top of an apple, it slides down. where does it come off the apple? assuming the apple is a frictionless sphere. Find the angle with respect to the vertical diameter of the apple.
Thursday, February 7, 2013 at 2:57am

college algebra
I you are given two real numbers, explain how to determine which one is lesser.
Thursday, February 7, 2013 at 1:09am

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