Saturday
August 27, 2016

Posts by Maria

Total # Posts: 1,853

Chemistry RUSH, Please
1) How many grams of CH4 (MM = 16.043) are needed to react with 50.0g of CL2 (MM=70.91)? 2) What is the molarity of a solution prepared by dissolving 20.0 g of methanol, CH3OH, oara sufficient water to prepare 500 mL of solution? Show calculations
October 8, 2015

bio statistics question!
Does P(x) = x/5, where x can take values of 0, 1, 2, 3, describe a probability distribution? Would the answer be no because when x is 1, 2, or 3 the values become 0.2, 0.4, and 0.6. But in probability distribution the values have to be between 0 and 1?
October 5, 2015

Chemistry
With relation to Avogadro's Constant: How many hydrogen ions are present in 3 moles of dilute sulphuric acid? As sulphuric acid is H2SO4, I'm not sure whether the answer is: 2 x 6 x 10(23) = 1.2 x 10(24) OR 6 x 6 x 10(23) = 3.6 x 10(24) Thank you!
October 4, 2015

math
bret divided 3 1/2 by a number and got 4 1/2.what number did he divide by?
October 1, 2015

math
The weight of box A is 4/5 of box B. If box B is placed on one side of a balance scale, it is balanced by box A and a 4/5 pound weight. How much does box B weigh?
September 30, 2015

Math
balace scale, it is balance by box a and a 4/5 pound weight. How much does box b weight .8 (12.8oz)1/5 B
September 30, 2015

statistics
WITH A SCIENTIFIC CALCULATOR JUST ENTER THE BELOW NUMBERS: 9!=362,880 OR MULTIPLY: 9*8*7*6*5*4*3*2*1=362,880 The probability is 1/362,889
September 29, 2015

Math 1 Algebra
What is 2p+4x=8 solve for x?
September 25, 2015

math homework
9. Jonathan and his band want to record and sell CDs. The recording studio charges an initial set-up fee of $250, and it charges $6.00 to burn each CD. a. Define the variables in this situation: • Let ____ = __________________________ • Let ____ = ...
September 23, 2015

Economics
Assume that the manufacturing of plastic (PVC) windows is a perfectly competitive industry. The market demand for plastic windows is described by a linear demand function: Q = (6000 -50P)/9. There are 50 manufacturers of plastic windows. Each manufacturer has the same ...
September 22, 2015

algebra
write a word phrase for the algebraic expression d+2
September 21, 2015

management
Quality at the source
September 19, 2015

math
Which expression represents the largest number? A. 40.1 3 1026 B. 4.1 3 1027 C. 0.411 3 1026 D. 0.04001 3 1025
September 17, 2015

Ap world history
D. The Development of A Quickly Maturing Rice
September 16, 2015

Science
Hoy can i name the entire physical universe?
September 15, 2015

math
The number of my hundreds plus the number of y thousands is 3.the number of my tens is 7 times the number of my hundreds.the number of my ones in 3 times the number of my thousands.all my digits are different.What number am i?
September 12, 2015

math
5y-3/5=4/5
September 7, 2015

spanish
Go back to the lesson and read. I'm doing the test and it's pretty simple just saying. You probably didn't even read the lesson.
September 7, 2015

english
It suggests some rights are more important than others.
August 29, 2015

Math
The concrete for a sidewalk is being poured outside the perimeter of a new subdivision, which is a 280 ft. by 720 ft. rectangle. The building code requires that the sidewalk be 5 feet wide and 8 inches deep. How many cubic yards of concrete will need to be poured? math: ...
August 29, 2015

NOVEL
What does the word mimetic tell us about the difference between novels and most of the literature of the 1800s? A. Novels were unique in trying to imitate real life. B. The authors were new and unknown. C. Novels presented common things in new ways. D. Novels present fantasy ...
August 27, 2015

algebra
what is -4^4 thank you!
August 26, 2015

HELPPPP! ELECTRONICS
I think its C
August 26, 2015

BUSINESS CONSULTING
i need help with this one
August 25, 2015

algebra
I think it is: (-5)(-5)(-5)
August 18, 2015

algebra
write the following using exponents: -5-5-5
August 18, 2015

math
132 to 89
August 17, 2015

physics
Two blocks of masses is m and 2m are held in the equilibrium on a frictionless incline. In terms of m and x, find the magnitude of the tension t1 in the upper cord and the magnitude of the tension t2 in the lower cord connecting two blocks.
August 11, 2015

Statistics
About how many participants are needed for 80% power in each of the following planned studies that will use a t test for dependent means with p<.05?
July 27, 2015

Personal Finance
Assume that you are 23 years old and that you place $3,000 year-end deposits each year into a stock index fund that earns an average of 9.5% per year for the next 17 years. how much money will be in the account at the end of 17 years.
July 17, 2015

Chemistry
A student collected the following data for a fixed volume of gas: Temperature (C) Pressure (mm of hg) 10 726 20 750 40 800 70 880 100 960 150 ??? Fill in the missing data point. Show all calculations leading to an answer.
July 13, 2015

vacunero sto. domingo
a 50 kg wagon is at rest on a rough surface.The coefficient of sliding friction is 0.85.How much force is needed to start moving the wagon.
July 2, 2015

Math
thanks!
May 30, 2015

Math
Find the 100th term in the sequence 77, 71, 65, 59 How do you go about doing this question without the need to list them all out?
May 30, 2015

Math
What is the units digit of 7^42 . I know I can just plug it in a calculator, but what is a faster way
May 30, 2015

Math
Thanks, that makes sense!
May 30, 2015

Math
Find the 100th place to the right of the decimal point in the decimal expansion of 1/13.
May 30, 2015

help please
Is the right answer A
May 30, 2015

help please
here is a public debate between the three candidates for the U.S. Senate. During the debate, the topics of oil and energy are addressed. Each candidate expressed their view on the issue: Edgar Eisenhower: "We need to cut our dependence on foreign oil. Instead, let's ...
May 30, 2015

Civics
If all counties in Florida had used the same procedures for recounting votes in the 2000 presidential election, then how might that have affected the outcome of Bush v. Gore? A. The ruling may have changed because the procedure that most of the counties used was ...
May 30, 2015

civics
It is constitutional rights
May 30, 2015

civics
rights sorry!
May 30, 2015

civics
What do you mean by constitutional "rents"?
May 30, 2015

civics
The First Amendment to the Constitution protects freedom of speech and of the press. Which of the following examples best demonstrates the constitutional rents? A. An advertisement contains incorrect information about a company's products. B. A man yells, "Fire!"...
May 30, 2015

Civics
can you please let me know if that answer is correct?
May 30, 2015

Civics
Form a special interest group
May 30, 2015

Civics
John knows many people who feel that small business need more support from the government. They support tax break and other benefits for small business owners. Which of the following best describes the most effective type of action these people could follow? A. attack the ...
May 30, 2015

civics
Is it C.?
May 30, 2015

civics
jill, the editor of the school newspaper, is running for class president. Her opponent is Jack, the captain of the school's ski club. Jill decides to make up a story to embarrass Jack and hurt his chances of wining the election. Would Jill's story be a protected form ...
May 30, 2015

Civics
thank you
May 30, 2015

Civics
How about answer A
May 30, 2015

Civics
Ellected officials will allow members of special interest group to speak at senate hearings
May 30, 2015

Civics
I think C is the correct answer
May 30, 2015

Civics
Rick wants to support a bill that is about to be voted on in his state's legislature. How might Rick more effectively support the bill as a member of a special interest group? A. Rick's vote in the upcoming elections will count for more than it would have if he wasn&#...
May 30, 2015

civics
paying income tax
May 30, 2015

civics
the idea that liberty is very important
May 30, 2015

civics
Libertarians believe that individual liberty is very important.They believe that people have the right to engage in any activity that is peaceful and honest. They also support a limited government and elimination of income tax. On which of the following issues would Democrats ...
May 30, 2015

Civics
Candidate A will be in favor of government funded health care. Candidate B would would probably be opposed to it.
May 30, 2015

Civics
Two candidates are running for office in the state senate. During a debate, the candidates say the following: Candidate A: "People are responsible for one another. We will all benefit if everyone gives their fair share. My opponent, Candidate B, doesn’t really care ...
May 30, 2015

english
The Palau Islands are located in the North Pacific Ocean, where old coral reefs rose above the sea. Which is the adverb clause?
May 28, 2015

Math
An oil company in Houston, Texas is hiring a geologist. The company interviewed 16 candidates. After the interviews, they ranked the top 5 candidates from first to 5th. How many lists can be formed?
May 17, 2015

Math
Five cards are dealt from a deck of 24 cards to form a euchre hand. Is this a combination or permutation? 4 actors are chosen To play the Beatles in a film. Is this combination or permutation?
May 17, 2015

Math
Thanks!
May 17, 2015

Math
Count the number of ways to award first place to third place to the top three groups in an engineering competition.
May 17, 2015

LA The Ninny Help & Check answers please
That girl is 100% right
May 7, 2015

Physics
Thanks, but can you show procedure?
May 3, 2015

Physics
Consider two students, a 65 kg guy and a 50 kg girl who are attracted to each other, gravitationally, that is. They sit next to each other in Physics class which means there is 1.5m between their centers. What is the magnitude of the force of gravity between these two students...
May 3, 2015

check pls
Grayson is designing a rectangular athletic field. On his scale drawing. the vertices of the rectangle are (4,5), (9,10), and (9,5). What are the coordinates of the fourth vertex? A. (4,9) B. (4,10) C. (5,10) D. (5,9) I think it's A. (4,9) Am i right?
April 30, 2015

Physics
Thank you so much Henry!
April 30, 2015

Physics
A racket exerted an average force of 152.0 N on a ball initially at rest. If the ball has a mass of 0.070 kg and was in contact with the racket for 0.030 s, what was the kinetic energy of the ball as it left the racket?
April 30, 2015

chemistry
You are given an organic solution which reacts with most organic solvents. how would you obtain the IR spectrum of it?
April 26, 2015

English
i just took the test 1. C 2. B 3. A 4. D (Turd's Answers are 4/4)
April 23, 2015

Chemistry
What is the equilibrium equation for FeS(s) + 2H3O+(aq) - Fe2+(aq) + H2S(aq) + 2H2O(l) ? Explain if possible !
April 23, 2015

physics
A 15.0cm object is placed 60.0cm from a convex lens which has a focal lenght of 15.0cm use the thin lens equation to find the distance of the image (60)1/15=1/60+1/60(1/15)=1-1+1/d
April 23, 2015

math
Suppose you want to build an outdoor rectangular pen enclosed by fencing for a pet. You want the pen to have an area of 64 square feet. Write and post one set of dimensions that could be used for the pen, along with the perimeter of the pen.
April 17, 2015

Physics
If a 0.50-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of 8.0 N for a distance of 4 m, then what would be the block's velocity?
April 15, 2015

writting skills
I got Number 11 wrong on that question they said it was not C.
April 15, 2015

Math
Thank you
April 8, 2015

Math
What value of x makes this equation true? 1/3(9x-2)+1=2(4x+1) a) x=-3 b)x=-1/3 c)x=1/3 d)x=3 Please explain. Having a hard time figuring out.
April 8, 2015

science
No he's not, me
April 8, 2015

math
charlie says that y=2x squared is not a function because the same y-value sometimes corresponds to more than one x-value. Is charlie correct
April 7, 2015

Chemistry
C18H32O2 + 2H2 - C18H3602; oxidized or reduced?
April 7, 2015

Algebra
@Ms.Sue
April 7, 2015

Algebra
1. If m∠1=37º , what is m∠4? a) 53º b) 43º c) 37º d) 27º 2. If m∠1=50º , what is m∠5? a) 50º b) 40º c) 35º d) 25º 3. If m∠4=25º , what is m∠8? a) 105º b) 75º c) 175º d) 25...
April 7, 2015

math
the scale listed on the box containing a model ship is 1 inch to 8 feet. which proportion can be used to find the actual length of the ship if the length of the model is 5 feet
March 27, 2015

physics
You're in an airplane that flies horizontally with speed 830km/h (230m/s ) when an engine falls off. Neglecting air resistance, assume it takes 35s for the engine to hit the ground. Find the height of airplane. Find the horizontal distance that the aircraft engine falls.
March 26, 2015

math
Why wasn't cross multiplication used. Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the same project in 1 1/6 weeks 5/3.5= x/1.16
March 26, 2015

math
Is there some other way I can explain this to my 8th grader. Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the same project in 1 1/6 weeks
March 26, 2015

math proportions
Five editors finish a project in 3 1/2 weeks. How many editors are needed to complete the same project in 1 1/6 weeks?
March 25, 2015

TMCC
Donna has scored 73 , 82 , 71 , 79 , and 69 on her previous five tests. What score does she need on her next test so that her average (mean) is 75 ?
March 24, 2015

Chemistry
Thank you!
March 22, 2015

Chemistry
I think I have worked out the answers - the volume of carbon dioxide would be 20dm3 and the volume of oxygen required would be 40dm3. Please let me know if I am incorrect. Thank you.
March 22, 2015

Chemistry
If 20dm3 methane was burned in pure oxygen: CH4(g) + 2O2(g) arrow CO2(g) + 2H2O(l) how do I work out the volume of carbon dioxide made? And what volume of oxygen would be required? Thank you.
March 22, 2015

English
Are you asking if the sentence is a question? If so, then no it isn't a question.....
March 22, 2015

application of differential equation
somebody please help me find the solution totally lost.... An object of mass 100g is thrown vertically upward from a point 60cm above the earths surface with an initial velocity of 150cm/sec. It rises briefly and then falls vertically to the earth, all of which time it is ...
March 21, 2015

application of differential equation
An object of mass 100g is thrown vertically upward from a point 60cm above the earths surface with an initial velocity of 150cm/sec. It rises briefly and then falls vertically to the earth, all of which time it is acted on by air resistance that is numerically equal to 200v (...
March 21, 2015

Perimeter
Lamar made a garden in the shape of a rectangle with an area of 36 square feet. The shorter side of the garden measures 4 feet. Explain how you can find the perimeter of the garden.
March 19, 2015

Math 5th grade
Thank you.
March 11, 2015

Math 5th grade
John brings fruit punch to a school party. He brings 6 gallons of fruit punch but the students only drink 3/4 of it. How much did they drink?
March 11, 2015

maths please help and explain
1.evaluate without using a calculator 2logx+1=log900 2.solve the following equation A. 3log(x-2)=4.714 B. 16^x-3 = 8^2x+1 C.10^2x=1/100
March 11, 2015

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