Monday
May 4, 2015

Posts by anonymous


Total # Posts: 80,958

science
a racer in a kayak travels a 300-meter river course at an average speed of 3 meters per second. how long does it take to complete the course?
March 31, 2015

statistics
A brewery's filling machine is adjusted to fill bottles with a mean of 31.9 oz. of ale and a variance of 0.004. Periodically, a bottle is checked and the amount of ale noted. (a) Assuming the amount of fill is normally distributed, what is the probability that the next ...
March 31, 2015

Finance - Loans problem
Can someone please explain how this problem is laid out to solve.A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7% compounded monthly. At ...
March 31, 2015

Finance - Loans problem
Please If you can. 307.33 is coming up as the wrong answer.
March 31, 2015

Finance - Loans problem
A company borrows $170000, which will be paid back to the lender in one payment at the end of 5 years. The company agrees to pay monthly interest payments at the nominal annual rate of 7% compounded monthly. At the same time the company sets up a sinking fund in order to repay...
March 31, 2015

statistics
What is the difference between alpha level and critical values?? Does the alpha level just help determine the critical value?
March 31, 2015

AP Exams?
I am in AP Chemistry and AP U.S Hisotry and I have planned on taking the tests. So far I have made an A+ in APUSH, but I an B in AP Chem. I've done kinda bad on the tests I've taken in there and I don't think I will do good on the Ap exam. I think I have a better ...
March 31, 2015

Math
would you need 90 tiles?
March 31, 2015

Art help please
1. D 2. C.
March 31, 2015

Art help please
French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an eye for composition ...
March 31, 2015

Chemistry
I am experiencing a major block.... I can't say.... 1micrometer= 1000nm 5micrometer= x..... because I'll get back the same thing So please help me, tell me the answer please.
March 31, 2015

Reed
Reed I posted my essay, sorry I just looked at it so I just posted it!
March 31, 2015

reading and writing
I think you're correct
March 31, 2015

Art
French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an eye for composition ...
March 31, 2015

statistics
If the null hypothesis is rejected at the .01 alpha level, it will be rejected at the .05 alpha level. Is this correct?
March 31, 2015

english
he is worried and grieving
March 31, 2015

sonnet
i need to write a sonnet
March 31, 2015

science
Leslie is Bb, she has brown eyes.
March 31, 2015

Readin Reed plz read
ok sorry just checked it! I am posting it now until I do not reply after you check plz do not remove cause then I won't see it! Did you know that you can text and call from an iPhone, but you can only do it with an iPod with WI-Fi! That is not so cool, so check out an ...
March 31, 2015

Readin Reed plz read
Umm.. Reed if it is ok with you I can copy and paste my essay and then u can check it then tell me and then remove it. Reed u helped me yesterday for the hook!
March 31, 2015

basic programming principles
if marital s=s then
March 31, 2015

Social Studies
What is a likely example that India supported East Pakistan's effort to gain Independence from Pakistan?
March 31, 2015

Physics
The force acts on a 1.7kg object whose initial speed is 0.44m/s and initial position is x = 0.27. Find the speed of the object when it is a the location x = 0.99m?
March 31, 2015

Ethics & Social Responsibility
Which group of people might not be fully autonomous in choosing to be a research subject?
March 31, 2015

Chemistry
What would be the consequence of competing equilibria, such as from other ingredients in an aspirin tablet in a titration lab results? What if there were several pain relievers in the same tablet? How could the error from these interferences be minimized?
March 31, 2015

Calculus
A certain magical substance that is used to make solid magical spheres costs $800 per cubic foot. The power of a magical sphere depends on its surface area, and a magical sphere can be sold for $20 per square foot of surface area. If you are manufacturing such a sphere, what ...
March 30, 2015

Science help please!!
Hi Katty! Had this question before, you are 100% correct :) Any other questions, I'll be glad to check ;)
March 30, 2015

L.A
In which sentence is the meaning of the word inarticulate best expressed? A. he impressed the audience with his inarticulate expressions B. the young girl was exceptionally animated and inarticulate. C. she had many ideas to share, but she was an inarticulate speaker*** D. the...
March 30, 2015

L.A
I think D as well
March 30, 2015

L.A
I don't think he's ashamed of anne. My other thought was D
March 30, 2015

L.A
What do you think Mr. Frank means in the passage from The Diary Of Anne Frank, act II? Passage: Annes Voice: In spite of everything, I still believe people ar really good at heart. [ Mr. Frank: ( slowly closes diary) Mr. Frank: "she puts me to shame" A. he is ashamed...
March 30, 2015

american government
3. Which of the following is true regarding senatorial courtesy? (Points : 1)
March 30, 2015

Social Studies
the answer is B
March 30, 2015

Programming
1.Do the planning and write an algorithm to solve the following problem. Prepare test data for the example to test all possibilities and draw a trace table. Sam works at a coffee company where all the employees receive a bonus of R700, except the employees in the coffee ...
March 30, 2015

chemistry
is trans-dibromoethene a proper way of labeling an alkene?
March 30, 2015

Math
What percentage of the total students chose skateboarding? Skateboarding boys=2 girls=1 A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank took you
March 30, 2015

Math
The demand for a commodity generally decreases as the price is raised. Suppose that the demand for oil (per capita per year) is D(p)=800/p barrels, where p is the price per barrel in dollars. Find the demand when p=55. Estimate the decrease in demand if p rises to 56 and the ...
March 30, 2015

child day care
there is really no way to get the answer out of the little bittie book they gave us i chose this but still dont understand and i hope your not a teachers cause you are no help to any one's education bringing them down God doesnt like Ugly.
March 30, 2015

Math
Tyler earns 7$ an hour mowing lawns. Write and solve an inequality that he can use to find at least how many hours he has to work to earn 100$
March 30, 2015

Reading
Umm.. Reed if it is ok with you I can copy and paste my essay and then u can check it then tell me and then remove it.
March 30, 2015

Reading
ya u can
March 30, 2015

Reading
Does this sound good?? Did you know that you can text and call from an iPhone, but you can only do it with an iPod with Wi-Fi!
March 30, 2015

Reading
Thanks
March 30, 2015

Reading
Yes I know what a hook is, It is something that grabs the readers attention, and sorry Ms. Sue!!
March 30, 2015

Reading
Can someone plz help me????????
March 30, 2015

Reading
Hi, Can someone tell me a good hook for a compare and contrast essay. Topic:- IPOD Vs. IPHONE, Thanks!!
March 30, 2015

Probabilit
Three marbles are drawn without replacement from an urn containing 4 red marbles, five what marbles, and two blue marbles. Determine the probability that None is red
March 30, 2015

math
^3ã54^5
March 30, 2015

Math
the number cube shown is rolled and the spinner shown is spun. find P(5 and blue). A. 4/6 B. 1/24*** C. 1/9 D. 1/16 *Btw the cube (or dice) has 6 sides and the numbers 1-6 and the spinner has 4 sides aka squares.. 2 yellow sqaures, 1 blue, and 1 green) The question is asking P...
March 30, 2015

phusics
a) k.e = 1/2 mv^2 = 1/2(0.05)(900)^2 note 50g converted into kg
March 30, 2015

calc
When production is 3000, marginal revenue is 7 dollars per unit and marginal cost is 5 dollars per unit. Do you expect maximum profit to occur at a production level above or below 3000? (Enter above or below.) If production is increased by 30 units, what would you estimate the...
March 30, 2015

Calc
The demand for a commodity generally decreases as the price is raised. Suppose that the demand for oil (per capita per year) is D(p)=800/p barrels, where p is the price per barrel in dollars. Find the demand when p=55. Estimate the decrease in demand if p rises to 56 and the ...
March 30, 2015

Calculus
The price-demand and cost functions for the production of microwaves are given as p=235−x40 and C(x)=14000+70x, where x is the number of microwaves that can be sold at a price of p dollars per unit and C(x) is the total cost (in dollars) of producing x units. (A) Find ...
March 30, 2015

Calculus
A company decides to begin making and selling computers. The price function is given as follows: p=−70x+4000, where x is the number of computers that can be sold at a price of p dollars per unit. Additionally, the financial department has determined that the weekly fixed...
March 30, 2015

Calculus
The total cost (in dollars) of producing x golf clubs per day is given by the formula C(x)=500+100x−0.1x2. (A) Find the marginal cost at a production level of x golf clubs. C′(x) = (B) Find the marginal cost of producing 35 golf clubs. Marginal cost for 35 clubs =
March 30, 2015

Calc
Suppose that the cost, in dollars, for a company to produce x pairs of a new line of jeans is C(x)=2200+4x+0.01x2+0.0002x3. (a) Find the marginal cost function. (b) Find the marginal cost at x=100. (c) Find the cost at x=100.
March 30, 2015

maths
Paul wrote five tests which were marked out of a total of 200 marks. Paul scored 40 out of 50 in a 6th test. What was his NEW average? HoW do I work out this type of sum.
March 30, 2015

math 7
Describe an example of an event that has a probability of zero and an event that has a probability of 100
March 30, 2015

phy 111
20.d
March 30, 2015

French
I had to fill in the blanks of this phrase with the following words: Word Bank: radoucira, irons, fera, etre, doux, devraient, pleuvra Phrase: La semaine prochaine, il est certain qu’il ne ___(1)___ pas du tout. Il ___(2)___ certainement plus ___(3)___. Les tempé...
March 30, 2015

Precalculus
Find an equation of the circular orbit of a satellite 500 miles above the surface of earth. Place the origin of the rectangular coordinate system at the center of Earth and assume that the radius of Eatch is 4000 miles.
March 29, 2015

Precalculus
I don't know but that's why I'm asking on this website.
March 29, 2015

Precalculus
I haven't learned how to do this.
March 29, 2015

Precalculus
Find and equation of the circle with center at (0,0) that passes through the poijt (5,2)
March 29, 2015

exponential equations
6. Staphylococcus bacteria has a doubling time, d ,of 18 minutes. Calculate how long, t, it will take for the population to increase, from an initial population of 400 organisms, to 6400 organisms.
March 29, 2015

exponential equations
If a brand new Nissan Frontier pickup truck has a current value of $22 500 off the lot, calculate how long, t, it will take to depreciate to half of it’s current value. This particular model has a depreciation rate of 23%. Give answer to 2 decimal places.
March 29, 2015

exponential equations
The Sign Guys purchased a new hoist for $1' 500. If this particular hoist has an annual depreciation rate, r, of 15% calculate the value of the machine in 3 years time. Give answer to 2 decimal places.
March 29, 2015

exponential equations
Jen made an initial investment of $1000 into a T-Bill account. After 2 years, her investment totaled $1 175. Calculate the rate of appreciation, r, of the investment. Give answer to 2 decimal places.
March 29, 2015

exponential equations
The City of South Bay has a current population of 85 000. If the city is increasing at a rate of 7.25% per year, calculate the future population in 8 years time. Round to the nearest person.
March 29, 2015

Calculus
Solve without a calculator. cos(arcsin (3x/2)) I made a triangle but im stuck after that..
March 29, 2015

Math
I know you can use the formula. But I'd there another way?
March 29, 2015

Math
If the flight of a rocket can be modelled by the function h=-4.9t^2+49t+2.5. Where h is height in meters and t is time in seconds. How long was the rocket above 100m? I know that you have to find the two times when the rocket hits 100m. And then subtract them. But how do you ...
March 29, 2015

Calculus
The integral of [(x+3)/(x^2+9)] dx I think you split it into two fractions but im not exactly sure what to do.
March 29, 2015

calculus
When air expands adiabatically (without gaining or losing heat), its pressure P and volume V are related by the equation PV1.4=C where C is a constant. Suppose that at a certain instant the volume is 330 cubic centimeters and the pressure is 99 kPa and is decreasing at a rate ...
March 29, 2015

Math
Would my answer be wrong if I used it on a test?
March 29, 2015

Math
The rainbow bridge of Utah is a natural arch that is approximately parabolic in shape. The arch is about 88m high. It is 84m across the base. Determine a quadratic relation, in standard form, that models the shape of the arch My answer was y=-22/441x^2+88 But the textbook said...
March 29, 2015

exponential equations
The Bruce’s purchased $2500 worth of GIC’s. How long, t, will it take for the investment to increase to $3500, if the interest rate is 2.75%.
March 29, 2015

Pschology 202
The psychological term for mental activities in which we think, solve problems, and use language is called?
March 29, 2015

Calculus
Integral of [1/(sqrt(8+2x-x^2))] dx
March 29, 2015

Chem
SO2F2(g) has a ΔHºf = -858 kJ mol-1 and the S-F bond is 308.0 kJ mol-1 Determine the average S=O bond energy in SO2F2 in units of kJ.
March 29, 2015

Calculus
Th integral of tan(3x)dx
March 29, 2015

Geometry check
Find the perimeter and are of a regular truangle with an apothem of 9 ft. Is the perimeter 54 ft & the area 243 ft?
March 29, 2015

Geometry help
Find the perimeter, apothem, and area of a regular triangle with a radius of 6sqrt3. How do I do this?
March 29, 2015

Pschology 202
lk
March 29, 2015

Calculus
If I were to find the derivative, would I derive ln y=(1-x)(lnx)? How would you derive this problem?
March 29, 2015

Calculus
How would you use logs?
March 29, 2015

Calculus
I did try and got it wrong and I'm unsure on how to go about the problem.
March 29, 2015

Calculus
Simplify using basic simplification. y=x^(1-x)
March 29, 2015

Calculus
Simplify using basic simplification. f(x)=ln[(sqrt(x^2+1))/(x(2x^3-1)^2)]
March 29, 2015

Pschology 202
After school, Raven enjoys going to the park to hang out with her friends and watch them do tricks on their skateboards. Every day, her friends encourage her to get a skateboard so that she can learn how to skate and do what they do. Eventually, Raven gives in and buys a ...
March 29, 2015

Calculus
Find the equation of the tangent line when x=2 for the functin f(x)=5^(x/2)
March 29, 2015

statistics
A simple random sample of a size n is drawn from a population that is normally distributed. The sample mean, x is found to be 110, and the sample standard deviation, s, is found to be 10. A- Construct a 95% confidence interval about u if the sample size, n, is 17
March 29, 2015

math
b= 18 inches Thanks for the help
March 29, 2015

math
The area of a triangle is 135 square inches. If the height is 15 inches, what is the length of the base?
March 29, 2015

Chemistry
10^3
March 29, 2015

Math
Jenna will use 1/3 of a piece of wood to make 4 shelves of equal size.
March 29, 2015

math
Stacy and Steve each have brownies of equal size,as shown. Stacy cuts her brownie into halves.Steve cuts his brownie into eighths. Which statement is true? A.Stacy has more pieces than Steve. B.Stacy has 4 pieces. C.Steve has smaller pieces than Stacy. D.Steve has fewer pieces...
March 29, 2015

Shegal
yes, it is coulomb's law. I assume the charges are left to right, 1,2,3 well the force on 2 from one is to the right(it repulses). the force on 2 from 3 is attractive, so it is to the right. So, the easy way is to figure the magnitude of each force, then ADD them, and the ...
March 29, 2015

math
Lexie divided these hexagons into 2 parts and shaded one part. Which shaded parts cover half the hexagon? A.only the shaded trapezoid B.both the shaded triangle and the shaded Pentagon C.only the shaded Pentagon D.both the shaded trapezoid and the shaded Pentagon And could you...
March 29, 2015

chemistry
What is the delta Hvap of a liquid that has a vapor pressure of 612 torr at 77.6 degrees C and a boiling point of 94.9 degrees C at 1 atm?
March 29, 2015

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