# Posts by anonymous

Total # Posts: 109,614

apush

apush
20 reasons for European exploration in 15th and 16th century? I have to get 20 but i can't find any other reason. Please read what i have and try to think of what i can put on the list. ? Fall of Constantinople to muslim ottoman turks. Constantinople connected europe and ...

math
Find the pressure exerted by the atmosphere on a car window which is 30 cm tall and 40 cm wide if atmospheric pressure is 101,000 Pa. (Remember that a Pa = N/m2)

Chemistry
What is the difference between a diprotic and triprotic acid? How does each acid ionise in water?

physics
A rock is dropped from a height of 2 meters into a freshwater pond. What is the medium of the wave created?

physics
A 14.0-m uniform ladder weighing 510 N rests against a frictionless wall. The ladder makes a 59.0Â° angle with the horizontal. (a) Find the horizontal and vertical forces the ground exerts on the base of the ladder when an 830-N firefighter has climbed 3.80 m along ...

maths
1. solve 10x + 4 = 39 2. solve 4(9x + 2)= 152

math
and number 5 the dieameter is 28.2

math
number 6 number 4 number 14

physics
A uniform meter stick ( 100 cm long) that weighs 0.50 N has a 2 N weight located at the 30 cm mark (from the left) and a 5 N weight at the 85 cm mark (from the left). Where along the meter stick is the center of gravity of this system?

Social studies
Need help with a few questions on my lesson 9 unit test In what way did the purchase of Alaska fit with Secretary of State William Seward foreign policy toward Asia?

Chemistry
The reaction, N2O5 = 2NO2+1/2O2 is first order in N2O5 with rate constant 6.2 x 10^-4 s^-1. What is the value of rate of reaction when [N2O5] = 1.25 mol L^-1 s^-1 ?

science
1metre length is kept at? 0 degree Celsius.why?

central GA technical college
What is the essential reason why the right to counsel under the Fifth Amendment is less restrictive on the role of the police than the right to counsel under the Sixth Amendment?

Science
What mass of carbon monoxide will be produce if 40 grams of carbon are all allowed to react with 95 grams of sulfur dioxide?

Math
Suppose that the local sales tax rate is 3% and you purchase a car for 27,700, how much tax is paid

Algebra
I came across a problem and noticed that (ln4)/2 = ln?4. How do I rewrite (ln4)/2 into ln?4 or verify that the two are equal without a calculator?

Math - Calculus
Suppose you live near a bay where the water level fluctuates due to the tides. Your bay is an inverted cone with a radius of 1 mile, and a depth in the center of 100 feet. (There are 5280 feet in a mile.) Water flows through a channel in and out of the bay with the tides. You ...

Math
Sofia spins the pointer of a spinner that has 5 equal sections numbered 1 to 5. Choose True or False for each statement. A. It is likely that the pointer will land on a factor of 4. B. It is as likely as not that the pointer will land on an odd number. C. It is unlikely that ...

Math
Darrin tosses a quarter and a penny 20 times. He gets heads on both coins twice. Compare the theoretical probability of getting heads on both coins with Darrin’s experimental probability of getting heads on both coins. Why might the probabilities differ?

Math
The experimental probability that a person in the United States has the A+ blood type is 35.7%. The experimental probability that a person in the United States has the AB– blood type is 0.6%. Last week, a blood bank received 224 donations. Predict how many more A+ ...

Math - probability
The experimental probability that a person in the United States has the A+ blood type is 35.7%. The experimental probability that a person in the United States has the AB– blood type is 0.6%. Last week, a blood bank received 224 donations. Predict how many more A+ ...

Math
Patty tosses a coin and rolls a number cube. 1)Find the probability that the coin lands on heads and the cube lands on an even number 2)Patty tosses the coin and rolls the number cube 60 times. Predict how many times the coin will land on Heads and the cube will land on an ...

Math
picking a 7 from a standard deck of 52 cards. a standard deck includes 4 cards of each number from 2 to 10 What is the probability?

Calculus Help
Suppose you drill a circular hole with radius r through the center of a sphere with radius R. You remove exactly half the volume of the sphere. The ratio of your radii is: r/R=

Physical Science
How much time will it take a car at 88km/hr to travel 500km? Show work and include final units

algebra
Which number is missing in the table of values below?

Science
Which of the following could be true of two different species that have a competitive relationship in the same ecosystem? One species preys on the other. The relationship is mutually beneficial. They share the same niche. One species benefits, while the other is neither helped...

math
The patient is seen by his family physician for follow-up treatment of recently diagnosed asthmatic bronchitis. The physicianâ€™s fee is \$75. The patientâ€™s copayment is \$20, and the patient is not required to pay any additional amount to the ...

Geometry
Does anyone from connections Acdemy geometry B have Unit 4 Lesson 6 and 7??

math
Part A: Using the graph above, create a system of inequalities that only contain points D and E in the overlapping shaded regions. Explain how the lines will be graphed and shaded on the coordinate grid above. (5 points) Part B: Explain how to verify that the points D and E ...

History
Why was inflation a problem after World War 2? a.Many people went into debt buying on credit without the income to pay cash b. Many men came home from war without being able to get a job c. Government controls ended and prices of good rose without workers getting raises d....

vectors/work
If I understand your geometry the wrench is in the x y plane perpendicular to the z axis. In that case moment about the z axis due to force normal to the wrench = force * length * 1 or F * 0.5 = 100

Wave Particles
momentum of photon = h/wavelength ---> m*v of proton

Physics
need about 4.2 eV for photoelectric effect - Aluminium what is energy of 4*10^-7 meter photon? 6.6*10^-34*3*10^8/4*10^-7 = 4.9 * 10^-19 J 1 eV= 1.6020 × 10–19 J so 4.9 /1.6 eV in photon that looks less than required 4.2 eV

college physics HELP
well for the very first part; Force = weight = m g = 0.4 * 9.81 Newtons displacement due to force = 0.2 meters so k = force/displacement = 0.4*9.81/0.2 Newtons/meter Now google simple harmonic motion mass spring

History
Are there any websites that have these two different cold wars because I have looked but I cant necessarily find any

History
Compare the cold war in russia and east asia versus the cold war in cuba and southeast asia

Probability
Suppose that in a given year, the probability that it will rain on September 21 is .358. What are the odds of it raining on September 21? How would a solve this? I would like to know the steps, not the answer. Thanks!

Math (ugh)
Solve the problem. Make sure your answer is in simplest form and improper fractions are expressed as mixed numbers. 3 3/4 x 2 4/5 = ?

Probability
A standard deck of 52-card deck is used to play a game. Four cards are drawn. What is the probability that all four cards are diamonds? I got this question wrong. I do not know how to solve it. Please explain. Thanks

Calculus
The function f is continuous on the closed interval [-5,5], and f(-2) = 6, f(1) = -3, and f(4) = 6. Which of the following statements must be true? A. The equation f(x) = 0 has at least two solutions on the closed interval [-5,5]. B. The equation f(x) = 0 has exactly two ...

Mathematics
A student cycles a distance of 63km in less than 3yrs.what is the average speed?

SS
How would supply shift caused by lower costs of production affect price and quantity? a) higher price, lower quantity b) lower price, lower quantity c) lower price, higher quantity *** d) higher price, higher quantity

SS
c for the third one

SS
It will be this "breaking up large companies to increase competition", they will compete and lower prices for customers?

SS
For third question, then... b) decreasing minimum wage

SS
Which of the following laws is considered a trade barrier? a) A company that produces furniture is shut down b) federal aid given to unemployed workers from a factory c) paying money to an industry to encourage it to make goods in the country *** d) consumers deciding to ...

SS
Which of these is an example of price competition? a) a new advertising campaign b) a loyalty rewards program c) a special holiday sale *** d) a customer satisfaction survey

SS
A company introduces a printer that does not require ink cartridges. As a result, the price of printers that use ink drops. What is another likely outcome? a) The price of ink cartridges goes up. b) The price of ink cartridges drops. *** c) The demand for ink cartridges goes ...

SS
Thanks!

SS
No wait! Economic Boom!

SS
A country has an economic boom and can afford to increase imports from a second country. What is likely to happen in the second country? a) a recession b) an economic boom c) a depression d) increased taxes ***

SS
B!

SS
Many employees of a local restaurant suddenly quit and seek other opportunities. What is the most likely explanation for the large number of employees quitting? a developing price war a protest action by the union decrease in positive incentives to work decrease of negative ...

SS
Which situation is more likely to occur in a market economy than a command economy? People line up for cheap but scarce products. A student is guaranteed a job out of college. An inventor designs and produces a new type of car. A committee chooses which farms should receive ...

SS
Industries will increasingly focus on using interdependence?

SS
The United States signs a free trade agreement with another country that has dramatically different resources. How would this trade treaty affect the United States? Businesses will most likely not offer a variety of products. Consumers will face higher prices as trade deficits...

Social Studies
How does the use of plastic to produce bicycle helmets affect other plastic-using industries? It decreases the prices offered by other industries. It increases the demand for products of other industries. It increases the capital available to other industries. It decreases the...

Social Studies
identity theft?

Social Studies
Sam discovers that someone has used his bank card to charge hundreds of dollars at a sports store. Which risk of using financial institutions is he a victim of? locked-in funds missed opportunities*** identity theft interest payments

physics
R?=??L?/A?=??L?/(?d?²/4) R?=??L?/A?=??L? /(?d?²/4) R?/R?=??L? ?d?²/??L??d?² = =2??3L?(d?)²/??L?(2d?)² =2•3•/4= 3/2=1.5 R? = 1.5R? = 1.5•4 = 6 ?

Calculus
If dy/dt = k/y and k is a nonzero constant, which of the following could be y? A. y = ?(2kt + 16) B. y = kt + 5 C. y = ?(kt + 16) D. y = 5e^(kt) E. y = ?(2kt) + 4 I got E by finding the integral of y dy = k dt.

grammar check
Uranium is a radioactive element that is used to create nuclear energy. Predicate Noun <---

Calculus
If g(x) = integral from 0 to x^2 of ?(t^3+2) then g'(2) = ?

Calculus
If y = 18 - 3x, what is the maximum value of the product 2xy? A. -3 B. 0 C. 3 D. 6 E. 54 I found that the value of the maximum occurs at x = 3, but that the value itself is 54. Is E the answer?

Okay thank you

I haven't done really anything I don't know how to set it up

Bob is going from his house to his uncle Sam's house in another state. He started running. After a while he switches to a bicycle. After a while he switches to a truck. After a while he switches to a sports car. After a while he switches to a helicopter. In each segment he...

Math
2arcsin(x/underroot6)+arcsin(4x)=180/2

Math
How much must Harry's Hardware deposit at a 14.5% annual interest for 240 days in order to earn \$500 in simple interest? Would the answer be 547.85? This is the equation I used. A = P(1 + rt)

Mechanics
Please help me A 15 g bullet strikes and embeds in a 3 kg block suspended at the end of a 1.1 m string. After the collision the string rises to a maximum angle of 23 degrees to the vertical. Find: a) The speed of the bullet. b) the percentage loss in kinetic energy due to the ...

Math
So, would the answer be 4275?

Math

Math
How would I solve the problem the right way then? I don't understand how to solve it.

Math
James has set up an ordinary annuity to save for his retirement in 19 years. If his monthly payments are \$250 and the annuity has an annual interest rate of 7.5%, what will be the value of the annuity when he retires? Would the answer be 171.11?

Math (finance )

Math (finance )
Find the monthly payment, needed to have a sinking fund accumulate the future value, \$16,000. The yearly interest rate is 6.7% and the number of payments is 20. Interest is compounded monthly. I do not remember how to solve for this equation. Please help me.

Math
Oh, I see what you mean. I was thinking about multiplication. Thank you

Math
Assume that you are rolling two dice. In how many ways can you roll a sum less than 4? Would the answer be 8 ways?

MATH
Harold took out a 4-year amortized loan for \$22,000 at 10% to pay his tuition at a technical institute. After 1 year, he refinanced the unpaid balance of \$17,291 at a 6% interest rate. (All interest rates are annual interest rates.) 1) Find the monthly payment on the original ...

World History
At the end of WW2 Berlin Germany is destroyed. Th eSoviety army took control of the city in 1945 but wouldnt let the other Allied armies in for 2 months. During that time, they stripped Berlin of anything useful such as factories as a form of reparations for the damage caused ...

MATH
A school district receives a grant to purchase 64 new computers to be apportioned among the 6 schools in the district based on the student population of each school. School A B C D E F Population 314 211 197 243 279 325 Find the standard quota for school A. (Round to two ...

Accounting
ABC Corp Ltd has 10 million shares and \$600,000 of debt (issues bonds @ 7% p.a.). EBIT is projected to be \$3 million. The company tax rate is 20%.Preference shares pay an annual dividend of \$100,000. Management is considering two options for capital restructure: Option 1: The ...

english
what point Gordimer is trying to illustrate through the contrast in “The Train from Rhodesia” between the description of the wooden figures and the description of the begging children

math
calculate the trade discount for 60 boxes of computer paper if the unit price is \$15.25 and a single trade discount

math
a man has a simple discount note for \$6,400 at an ordinary bank discount rate of 8.53% for 40 days what is the effective interest rate

Maths
10 books is half kg so how many kg is 05 books

american gov
ms sue needs to stop with the sass. your account is like the wendy's of jiskha

chemistry
Please help! N2H4 is decomposed in a closed container according to this reaction: N2H4 ? N2 + 2H2 . If the temperature is constant and the initial pressure of N2H4 is 800mm, what will the pressure in millimeters be after the decomposition to N2 + 2H2?

physics 10
9.543x10^-3 When you move the decimal place to the right you add to the -4. i.e. (-4+1) If it would have been to the left you would have subtracted from the -4. i.e. (-4-1)

geometry
In rhombus MPKN with an obtuse angle K the diagonals intersect each other at point E. The measure of one of the angles of a ?PKE is equal 16°. Find the measures of all angles of ?PKE and ?PMN.

Math
Find the monthly payment, needed to have a sinking fund accumulate the future value, \$16,000. The yearly interest rate is 6.7% and the number of payments is 20. Interest is compounded monthly. Round your answer to the nearest cent. I do not understand how to find the monthly ...

Math
A law firm has ten male and ten female lawyers. A committee of five- two male lawyers and three female lawyers, is to be chosen to represent the firm at a conference. How many committees are possible? How do I solve this?

Chemistry
Calculate the pressure of an ideal gas if you have 4.3 L and 2.2 miles at a temperature of 238 K

mathematics
A bag contains 6 red tiles, 8 blue tiles, and 6 green tiles. A tile is drawn, the color recorded, and then the tile placed back in the bag before a tile is drawn again. if this procedure is done 30 times, how many red tiles would you expect to draw?

Math (NEED HELP ASAP)
im not cheating. i need help and my answer is D but i dont know how to put that

Math (NEED HELP ASAP)
If you know all answers to test please let me know!!!! use the formula s=2(1w)+2(1h)+2(wh) to find the surface area of a rectangular prism with the following dimensions: *length = 2 cm * width = 3 cm * height = 4 cm A) s=21 cm2 B) s= 48 cm2 C) s= 52 cm2 D) s=96 cm2

Social
the ansers are 1.D 2.B 3.A 4.C