Monday

August 3, 2015

August 3, 2015

Total # Posts: 1,671

**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*

**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*

**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*

**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*

**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*

**math**

In 2000, about 51% of the 280,000,000 US citizens were women. Their median age was 36.6. About how many of these women were younger than age 36.6?
*March 10, 2015*

**Chemistrhy 110**

How many grams of Na2CO3 must be dissolved in 3.75 L of aqueous solution to yield a molar concentration of 1.75 molar?
*March 10, 2015*

**science**

Coefficient of friction is 13.0? Am I correct?
*March 2, 2015*

**science**

A body with a mass of 490kg is pulled along a horizontal plane at a constant velocity.the pulling force is 1.2 kN is making an angle of 20degrees with the plane. A.determine the coefficient of friction
*March 2, 2015*

**science**

1 . A body with a mass of 490kg is pulled along a horizontal plane at a constant velocity.the pulling force is 1.2 kN is making an angle of 20degrees with the plane. A.determine the coefficient of friction
*March 2, 2015*

**Organic Chemistry**

So, eclipsed with the methane on C2 and the rest of the chain (CH2CH3) on C3 in the same relative "position"?
*February 25, 2015*

**Organic Chemistry**

Looking down C2-C3 of 2-methylpentane, is the first newman projection staggered or eclipsed?
*February 25, 2015*

**Math**

It's an irregular hexagon. The base of the hexagon is 12m, the length of one side is 9m, the length of the other sides are 5m, and 4m, the width of the other sides are 7m and 5m. What is the area of the hexagon ?
*February 23, 2015*

**math**

it's an irregular hexagon. the base of the hexagon is 12m, the length of one side is 9m, the length of the other sides are 5m, and 4m, the width of the other sides are 7m and 5m
*February 22, 2015*

**math**

it's an irregular hexagon. the base of the hexagon is 12m, the length of one side is 9m, the length of the other sides are 5m, and 4m, the width of the other sides are 7m and 5m
*February 22, 2015*

**math**

what is the area of a hexagon with sides 5m, 4m, 5m, 9m, 7m and 12m
*February 22, 2015*

**math**

0.6 divided by (0.4 x 0.5)
*February 22, 2015*

**math**

In a bag are three red marbles and three green marbles. If two marbles are drawn from the bag at the same time, what is the probability that both marbles will be red?
*February 22, 2015*

**math **

explain comparing fractions 21/25?
*February 19, 2015*

**physics**

if a 400g ball moving 1.2 m/s [north], receives an impulse that changes its direction and speed to 2.8 m/s [east], what is the change of momentum?
*February 13, 2015*

**physics**

a regulation golf ball has a mass of 45.0 grams. a golf ball is dropped from a height of .305 m and it strikes the floor with a velocity of 2.35 m/s [down]. if the velocity of the ball as it leaves the floor is 2.15 m/s [up]. determine the impulse applied to the golf ball.
*February 13, 2015*

**Physics**

Two people are holding up the ends of a 4.40-kg wooden board that is l = 1.95 m long. A m = 2.00-kg box sits on the board, 0.50 m from one end, as shown below. What forces do the two people exert?
*February 12, 2015*

**science**

If we added more mass to the blocks of wood during these lessons,how would that have changed the experiment?
*February 11, 2015*

**Algebra 2**

simplify each expression. rationalize all denominators. assume that all variables are positive (1-sqrt(3x))/(sqrt(6x)) Please show work!!!!
*February 9, 2015*

**Algebra 2**

Steve can't teach well
*February 9, 2015*

**Algebra 2**

solve each equation. check for extraneous solution. sqrt(3x+4)-sqrt(2x-7)=3 please show work!!!!!
*February 9, 2015*

**Algebra 2**

solve each equation. check for extraneous solutions. sqrt(2x+1)+sqrt(2x+6)=5 please show work!!!!!
*February 9, 2015*

**math **

Gabe went to the amusement park with $40 to spend. His ticket cost $26.50. Write and solve an inequality to show how much he might spend on souvenirs and snack. Please tell me how you got this answer to this question.
*February 8, 2015*

**math**

a service of juice is 250 ml. how many servings are in a doze liters of juice?
*February 4, 2015*

**math**

Aaron has 5 pounds of flour. He needs 1/8 of a pound of flour to make a single cupcake. how many cupcakes can he make?
*February 2, 2015*

**Math**

Netta faxed n pages from the library. The library charges $1.50 per page. Later the same day, Netta faxed n more pages from a local copy shop. The copy shop charges $1.25 per page plus a $2 convenience fee. Write and simplify an expression for the amount Netta spent on faxes ...
*January 22, 2015*

**Chemistry**

qs, don't we need the concentration of what's left when we use the equation? Or are they the same thing with moles?
*January 18, 2015*

**Chemistry**

What will the pH be if 15 mL of 0.1 M HCl are added to the buffer obtained by mixing 70 mL of 0.5 M CH3NH2 and 30 mL of 1.0 M CH3NH3+Cl-? (Kb for CH3NH2 is: 5.2 x 10-4 ) I'm having a hard time figuring out what to do first. is the ICE table come in handy for this? Can you ...
*January 18, 2015*

**science**

What are some arguments against extending human life? Please describe at least one objection and one objection from your research and experience.
*January 16, 2015*

**Math**

Find the vertex: -1/4x^2+9/5x+2
*January 7, 2015*

**Math**

so b) will be g3 and c) will be d represents dollars per gallon and g represent gallons of gas? What else? Can you please check my answers, thank you very much.
*January 6, 2015*

**Math**

Mia buys 3 gallons of gas that costs d dollars per gallon. Bob buys g gallons of gas that costs $3 per gallon. a) Write an expression for the amount Mia pays for the gas. b) Write an expression for the amount Bob pays for the gas. c) What do the numeral and the variable ...
*January 6, 2015*