Thursday
July 31, 2014

Posts by anonymous


Total # Posts: 70,632

math
There are some rabbits and chickens in a field. Together they have 35 heads and 94 feet. How many rabbits? How many chickens?

science
The greenhouse effect is caused by the burning of fossil fuels and deforestation

English
Are the english teachers on vacation or something? I posted my essay several times and did not see any reply.. Your help is essential!

physics
A car travels 2.74 km in the x-direction, then turns left 61.2◦to the original direction and travels an additional distance of 3.19 km. Calculate the x component of the car’s net displacement.

Math
Frances can type 100 pages in h hours. At this rate, how many pages can she type in m minutes? A. mh/60 B. 60m/h C. 100m/60m D. 60h/100m E. 100h/60m

Math
Let R be the statement : for all sets A, B and C, if A⊆B∪C and B ⊆C∪A then AΔB = C. Q: Is R true for all sets A, B and C? Prove answer Let S be the statement: for all sets A, B, and C, if AΔB = AΔC then B⊆C. Q: Is S true? prove answer

Math
The endpoints of a diagonal of a square are (-2,2) and (1,5). What is the area of the square?

Algebra
For nonzero numbers x,y, and z, 3x=4y and 12y=5z. What is z/x?

math
1. Read the following statements: I. All trapezoids consist of two parallel sides. II. The base angles of all trapezoids are equal in measure. III. The lengths of the tall trapezoids legs are equal in measure. Which of the above statements are true? II only I only I, II, and I...

Math
At a speed of 48 miles per hour, how mnay minutes will it take to drive 40 miles? Is it 32 minutes?

Math
Two trains are travelling on parallel tracks both going from station A to station B.Train 1 leaves at 8 am, at 65 miles per hour. Train 2 leaves at 10 am, at 90 miles per hour. At what time will train 2 catch up to train 1?

Math
Let R be the statement : for all sets A, B and C, if A⊆B∪C and B ⊆C∪A then AΔB = C. Q: Is R true for all sets A, B and C? Prove answer Let S be the statement: for all sets A, B, and C, if AΔB = AΔC then B⊆C. Q: Is S true? prove answ...

PUBLIC SPEAKING
One of the primary jobs of an informative speech is to: A. appeal to the emotions of the audience. B. ask them to do something with the information. C. communicate information accurately and clearly. D. entertain the audience.

Writing
Please give me a score of 1-6 (one being poor and six being excellent). Also, please give me some feedback! Thank you in advance! Essay prompt: What motivates people to change? Essay: Many people know that eating junk food is unhealthy. Yet, they keep eating it because it tast...

geometry
A bachelor spends one half of his salary on entertainment,one fifth on food,one tenth on clothes and one fifth on rent.What fraction of his salary is left?

bussiness math lit and tourism
What university and job can I get

Math
Let R be the statement : for all sets A, B and C, if A⊆B∪C and B ⊆C∪A then AΔB = C. Q: Is R true for all sets A, B and C? Prove answer Let S be the statement: for all sets A, B, and C, if AΔB = AΔC then B⊆C. Q: Is S true? prove answ...

SAT WRITING
Please give me a score of 1-6 (one being poor and six being excellent). Also, please give me some feedback! Thank you in advance! Essay prompt: What motivates people to change? Essay: Many people know that eating junk food is unhealthy. Yet, they keep eating it because it tast...

Criminal justice
what subject matter does the us supreme court not have the power to decide?

Math (Discrete Math)
Let R be the statement : for all sets A, B and C, if A⊆B∪C and B ⊆C∪A then AΔB = C. Q: Is R true for all sets A, B and C? Prove answer Let S be the statement: for all sets A, B, and C, if AΔB = AΔC then B⊆C. Q: Is S true? prove answ...

SAT Writing
Please give me a score of 1-6 (one being poor and six being excellent). Also, please give me some feedback! Thank you in advance! Essay prompt: What motivates people to change? Essay: Many people know that eating junk food is unhealthy. Yet, they keep eating it because it tast...

Calculus
Find the antiderivative, F(x), with F′(x) = f(x) and F(0) = 1. f(x) = −7 x

Chemistry
The decomposition of NO2 at room temperature exhibits the following variation in concentration with time: The concentration of NO2 is expressed in mol/liter, while time is expressed in seconds. [NO2] ln[NO2] 1/[NO2] Time (s) 0.0831 -2.4877 12.03 0 0.0666 -2.7091 15.02 4.2 0.05...

physical
what is cell

physical science
what is observed during an experiment of oxalic acid and sodium hydroxide

counseling
A low, non-significant correlation between an observation-based assessment of symptoms of autism and a teacher-report of ADHD symptoms provides ____________ of the validity of the autism measure

Algebra
3(x-1) -2(x^2+3x+4)-5(x+9)=

finance
Program A has a profit of $5,000 and an investment of $100,000, while program B has a profit of $10,000 and an investment of $220,000. Which program has the better ROI?

SAT
Suits at a local clothing store are discounted 20%. Despite the discount, the store owner enjoys a net profit (discount price minus cost) equal to 60% of the cost of the suits. If the suits cost the clothing store owner $200 each, what was the prediscount price of each suit? T...

Science
What do these symbols mean: 8=====> and ({!}) and ({8=!})?

Finanace
If a firm just paid a dividend equal to $4.00 a share, then for the WACC, in order to find the cost of equity, $4 should be

Math
Sita needs a perfect score of 100 for math test in this year so as to improve on her average score from 84 to 86. How many maths tests were there altogether in this year?

Maths
The average mass of Ken, David and Kelvin is 42 kg. David is 6 kg heavier than the average mass of Ken and Kelvin. Ken is 6kg heavier than Kelvin. Find David's mass.

math
The average mass of a group of children is 36kg. If 3/7 of the no. of children are girls and their average mass is 32 kg, find the average mass of the boys.

finance
St. Luke’s Convalescent Center has $200,000 in surplus funds that it wishes to invest in marketable securities. If transaction costs to buy and sell the securities are $2,200 and the securities will be held for three months, what required annual yield must be earned befor...

finance
An important source of temporary cash is trade credit, which does not actually bring in cash, but instead slows its outflow. Vendors often provide discounts for early payment. What is the formula to determine the effective interest rate if the discount is not utilized?

finance
Your firm is considering the following three alternative bank loans for $1,000,000: a) 10 percent loan paid at year end with no compensating balance b) 9 percent loan paid at year end with a 20 percent compensating balance c) 6 percent loan that is discounted with a 20 percent...

chemistry
A sol n contains 37g cuso4 and 111g water . Calculate the concentration by mass /c of sol n.

health care finance
An important source of temporary cash is trade credit, which does not actually bring in cash, but instead slows its outflow. Vendors often provide discounts for early payment. What is the formula to determine the effective interest rate if the discount is not utilized?

health care finance
Your firm is considering the following three alternative bank loans for $1,000,000: a) 10 percent loan paid at year end with no compensating balance b) 9 percent loan paid at year end with a 20 percent compensating balance c) 6 percent loan that is discounted with a 20 percent...

health care finance
St. Luke’s Convalescent Center has $200,000 in surplus funds that it wishes to invest in marketable securities. If transaction costs to buy and sell the securities are $2,200 and the securities will be held for three months, what required annual yield must be earned befor...

algebra
A company charges 200 for each leather bag on order of 150 or less. The cost of each bag is reduced by 1 for each order in excess of 150 pieces. How many bags on order would result in result in maximum revenue? What is the maximum revenue?

Philosophy
According to Aristotle, we should begin ethical inquiry by specifying

math
A2-b2 farmula

Chem: x-ray
Experiment to obtain the X-ray diffraction peaks of an unknown metal. Radiation is K_alpha from Cu. Through these diffraction peaks you wanted to determine: (a) whether the cell is SC, BCC, or FCC (b) the (hkl) value of the peaks (c) the lattice parameter a of the metal sin^2(...

math
the table below shows some values for the function f. if f is a linear function, what is the value of a+b? table: X | f(x) 0 | a 1 | 12 2 | b

chemistry
show you tried and I'll give you an hint ok?

medical billing and coding
a new technology that will change the role of the transcriptionist is

chemistry
*so, do

chemistry
First of all thanks for your help. I meant that reading around the web, NO2 at room tempearature is said to be a second order rection. If it was such, the graph of 1/C vs time should be a straight line, whose k is the rate. I did that, and those values are near but not particu...

chemistry
you mean without ln, just dC/dt over C ? not a straight line. I've searched around and I am under the impressione that even if values don't align perfectly people still say it's second order reaction, is it? ratio of (1/t)/t are as follow: 0.7119 0.7081 0.8257 0.59...

Calc
A rancher wants to fence in an area of 1500000 square feet in a rectangular field and then divide it in half with a fence down the middle, parallel to one side. What is the shortest length of fence that the rancher can use?

home economics
The US government does not influence its economy true or false?

Math 105
To estimate the proportion p of defective light bulbs produced in a factory, a sample of 180 bulbs were tested. In this sample 27 were defective. We will compute a 95 percent confidence interval for p. Compute the margin of error e in esimating p at 95 percent level of confide...

math
An equilateral triangle and a regular hexagon share a common side. The perimeter of the triangle is 20 cm. What is the perimeter of the hexagon?

physics
A bus and a car have an inelastic head-on collision. The bus has a mass of 1.5 × 103 kilograms and an initial velocity of +20 meters/second. The car has a mass of 9.5 × 102 kilograms and an initial velocity of -26 meters/second. What is their total momentum after t...

M
In printing an article of 21,000 words, a printer decides to use two sizes of type. Using the larger type, a printed page contains 1,200 words. Using the small type, a page contains 1,500worda. The article is alloted 16 full pages in a magazine. How many pages must be in the l...

quant
The president of Pegasus Corporation is trying to decide which of three candidates (denoted as candidates A, B, and C) to hire as the firm’s new vice president of Marketing. The primary criteria the president is considering are each candidate’s leadership ability, in...

math
out of every 220 packages of coffee 30 are in twelve oz bags, 60 are in 16 oz. bags and 110 are in 5 lb bags. 1100 packages were labeled in 8 minutes. how many packages are there of each?

geometry
She is defintley in Aops geometry. I have the same problem due this week.

geometry
Are you in Aops geometry?

Poetry
One difference between the English sonnet and the Italian sonnet is its

math
216 cubic feet

mathematics
Of the bundles delivered daily to the store, 1/3 consists of the morning edition of The Daily Sun. Another 2 bundles are made up of the afternoon edition of the same paper. Of the remaining bundles, 1/2 is regional, one is a local newspaper, and one is from another state. How ...

math
7680 words

math
A page in an average newspaper has 8 columns of print. Each column consists of 160 lines and each line averages 6 words. What’s the average number of words on a full page?

chemistry
What mass of cesium chloride must be added to 0.570 L water to produce a 0.375 m solution?

english
Many cultures have stories about trickster animals that fool human beings. These are usually hilarious.

Math
A man cheats 5% on the both side when buying and selling a products. find what will be the gain percent of the man?

physics
A car is released from rest on a frictionless inclined plane. (Figure: twitpic com/e8nkhj) Calculate the momentum pi at the end of the plane in terms of measured quantities x, y, l, and m. Assume θ is very small so that h/l ~= y/x. (Hint: use conservation of energy and K ...

finance
six years ago singleton company issued 20 year bonds with a 14% annual coupon rate at their 1000 par value . the bonds had a 9% call premium, with 5 years of call protection. today singleton called the bonds. compute the realized rate of rate of return for an ivestor who purch...

Puntuation
Dwayne had planned to take the last flight out to Chicago. It was cancelled, however, because of bad weather

Math
Lisa's livingroom is 17 feet wide. If the length is 4 feet more than twice the width, what is the area of her livingroom?

Math
A homeowner is laying sod in her lawn. The lawn is a rectangle with dimensions of 28'*18'. If one piece of sod is a rectangle with dimensions of 60cm*40cm, approximately how many pieces of sod should the homeowner order?

physics
P.E=mgh m=51kg g=9.8ms^2 h=2.8m 51*9.8*2.8=1399.44j

chem
With two dice, each numbered 1-6, there are two possible ways to roll a 3: Thus, for the outcome of 3 (a particular macrostate) there are 2 microstates. How many possible ways are there to roll a 6?

Grammar
was incarnate or was incarnated

momentum
322n

math
21 foot long and 12 feet wide 8foot high how many pieces of plywood will it t a ke to cover

chemistry
I got kc to be 0 but that has got be wrong

math
$3142.86, rounded to nearest hundredth

math
42. You split the total in half, one half is white the other half has 1/3 red filters meaning the 4 blue filters and 10 yellow filters represent 2/3. We now know that 1/3 of half of the lights is 7. 21 is one half of the lights 2 halves is 42.

math
If three exterior angles of a quadrilateral measure 125 degree, 85 degree,100 degree, find the measure of the interior angles of a quadrilateral?

chemistry
WOULD YOU WANT TO BE A SILICON RIBBON TWIRLER? (10/10 points) A silicon ribbon measuring 100 micron thick, 5 mm wide, and 1 m long has 5 volts applied across its long dimension. The resistivity of silicon is 640 ohm-m. How much current will flow through the ribbon? Express you...

chemistry
The weight of one atom of uranium is 238amu.its actual weight is

MATH WORD PROBLEM
TERRY HAS A BOARD THAT IS 4YARDS LONG. hOW MUCH NEEDS TO BE SAWN OFF TO MAKE THE BOARD 2FEET 8INCHES LONG?

Math
The ratio of dogs to cats at the pet storeis 1:4. If the pet shop has 7dogs, how many cats does it have?

Math
155.11

physics
128.7*80=10296

physics
How much heat must be added to 128.7 g of ice at 0 degrees Celsius to melt the ice completely? Answer = _____calories

physics
How much heat must be added to 128.7 g of ice at 0 degrees Celsius to melt the ice completely? Answer = _____calories

Calc
Thank you Damon! You're a life saver. :)

Calc
Give a 4-term left Riemann sum approximation for the integral below. 16 ⌠ 3*((x+2)^(1/2)) ⌡ 12

Calc
Your velocity is given by v(t)=1 t2+2 in m/sec, with t in seconds. Estimate the distance, s, traveled between t=0 and t=8. Use the average of the left and right sums with 4 subdivisions.

Calc
Year 1940 1950 1960 1970 1980 Rate of change (million people per year) 29 49 67 76 98 If the population in 1940 were 2158 million and if the population in 1980 were 4846 million, what would be the true total change in population?

physics
A man shoots a rifle at a height of 1.7 m above level ground. His aim is perfectly horizontal. At the same time the bullet leaves the barrel of the gun at 670 m/s, the shell casing is ejected with a velocity of 3 m/s, also perfectly horizontal to the ground (but at an angle of...

math
In the equation q-12=89 what is the value of q

physics
A standing wave has X nodes in a string Y m long The wavelength of this wave is ___ m rounded to the first decimal place.

math
The annual interest rate for a customer’s loan of $425 is 15.75%. What is the total dollar amount to be repaid on the loan, including principle and interest, for the entire year?

Grammar
Get eaten or got eaten or gets eaten.. I am very confused! Please explain the grammar rules and give some examples.. Is this right? The fish got eaten by a shark. "get eaten by a shark" ..would be incorrect,right? What about.. The fish gets eaten by a shark ..???? Is...

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