Friday

February 24, 2017
Total # Posts: 400

**Physics**

Okay , but if a block and tackle was used to lift an object why does it use less energy than actually pushing that object up?

*February 19, 2017*

**Physics**

2300 Joules is used to lift a wheelbarrow through 4 meters up an inclined plane into a container. Why does the man use more joules (3500 J) to push the wheelbarrow?

*February 19, 2017*

**spanish**

Second one is A)Unas primas

*February 17, 2017*

**math**

if angle pqr=1 1/2 right angles find the reflex angle pqr

*January 11, 2017*

**physics**

During strenuous exercise, it is possible to exert forces to the joints easily ten times greater than the weight being supported. What is the maximum force of friction under such conditions? The frictional forces in joints are relatively small in all circumstances except when ...

*October 23, 2016*

**science**

An object is placed at a distance of 12 cm from a concave mirror of radius of curvature 16 cm .find the position of the mirror.

*October 22, 2016*

**chemistry**

Consider the reaction below. C3H8 + 5 O2 3 CO2 + 4 H2O How many litres of CO2 will be produced when 10.0 L of O2 are completely reacted with C3H8? Assume that the volumes of the reagents and products are measured at constant pressure and temperature.

*October 15, 2016*

**chemistry**

75.0 mL of a 1.50 M solution is diluted to a total volume of 278 mL. A 139-mL portion of that solution is diluted by adding 139 mL of water. What is the final concentration? Assume the volumes are additive.

*October 14, 2016*

**chemistry**

An aqueous solution of HCl that is 4.000% HCl by mass has a density of 1.0181 g mL−1. What is the pH of this solution?

*October 8, 2016*

**Global Studies**

democracy

*September 21, 2016*

**Language arts**

Proper phrasing is needed when reading aloud to

*August 26, 2016*

**Data analysis**

Question 1 Production Rates A manufacturing company wishes to find out whether the productivity of its workforce has increased now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past month. The hourly production rates for...

*May 3, 2016*

**data analysis- math**

Question 1 Production Rates A manufacturing company wishes to find out whether the productivity of its workforce has increased now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past month. The hourly production rates for...

*May 3, 2016*

**Data analysis**

Question 1 Production Rates A manufacturing company wishes to find out whether the productivity of its workforce has increased now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past month. The hourly production rates for...

*May 2, 2016*

**Art**

which of the following best explains why a colorful tulip is not typically viewed as a work of art? A.Tulips cannot be displayed in a gallery. B. Tulips are not lasting objects. (I chose this one) C. Tulips do not have artistic patterns D. Tulips are not human-made.

*April 28, 2016*

**Math**

Thank you so much! I really appreciate it.

*April 21, 2016*

**Language Arts**

No he does not, because it seems that he is saying that even though there is darkness in your life, there will be happiness.

*April 21, 2016*

**math**

Check the first related question below.

*April 19, 2016*

**Math**

I got, 0.5877 and I know that's definitely not correct. What am I doing wrong?

*April 19, 2016*

**Science**

You are correct.

*April 12, 2016*

**math**

is is 4m

*March 17, 2016*

**math**

A rectangular picture frame measures 49 cm by 98 cm. What is the perimeter or distance around the picture frame in meters? m

*March 17, 2016*

**Math**

17.4 is 25% of what number? A. 4.35 B. 52.2 C. 69.6 D. 34.8 my answer is A

*March 17, 2016*

**math**

LeBron scored a basket 72 times out of 150 shots. What percent of his shots did he score? A. 42% B. 50% C. 48% D. 63% My answer is 48% is this correct

*March 17, 2016*

**math**

3/10 is my answer. Is that correct?

*March 15, 2016*

**math**

13/21

*March 15, 2016*

**math**

add 1/3 + 2/7 my answer is 2/21 is that correct

*March 15, 2016*

**math**

thank you Ms.Sue

*March 15, 2016*

**math**

is that right

*March 15, 2016*

**math**

18/42=12/18

*March 15, 2016*

**math**

Which of the following statements is a true proportion? 18/42=12/18,18/42=9/24,18/42=21/48,or 18/42=118/142

*March 15, 2016*

**math**

thanks

*March 15, 2016*

**math**

What is the answer to this fractions 1/3 + 2/7

*March 15, 2016*

**Calculus**

Starting with an initial guess of x=2, use Newton’s method to approximate (Third root of 7). Stop the iterations when your approximations converge to four decimal places of accuracy. Compare with the approximation provided by your calculator I'm so stuck

*March 13, 2016*

**Painting**

Also the art that is used for this question is the first one in the right side

*February 19, 2016*

**Painting**

My real name is Tia but I'm transgender so my boy name is Justin

*February 19, 2016*

**Painting**

why did painter meissonier place napoleon at the front and center of this art work? The Walters Art museum Baltimore. A. To show his small size B. To show his central importance C. To show his entire figure D. To make wise use of space•• Correct this that is all I&#...

*February 19, 2016*

**Language Arts**

Number one is not correct, but number two is.

*February 18, 2016*

**math**

there is 1/4 cup of lemon juice in each pitcher of lemonade. How many whole cups of lemon juice are there in 12 pitchers of lemonade?

*February 16, 2016*

**Art**

I agree.

*February 1, 2016*

**Science**

You are correct.

*January 30, 2016*

**math**

Factor out the GCF: -(b+a)(c-1)

*January 30, 2016*

**math**

Principle amt(P) = $40,000 Rate of interest(R)= 7% Time(T) = 2 years Simple Interest (I) = PRT/100 = 40,000*7*2/100 = $5600 Amount(A) = P + I = $40,000 + $5600 = $45,600

*January 30, 2016*

**algebra**

why are handcuffs like souvenirs?

*November 18, 2015*

**Math**

cos c = cos b * cos a so, he have cos c = √3/2 * 1/2 = √3/4 c = 64.34° = 1.123 radians so, since s=rθ, the arc length of c is 5000 * 1.123 = 5615 km

*November 4, 2015*

**maths**

Do you have any answer choices?

*November 4, 2015*

**Program planning**

It's my opinion, as you said, "what do YOU think". I stated what I think, overall, it's anyone's opinion.

*November 4, 2015*

**Program planning**

I would say either A or D. Overall, I would lean more towards D since the article talks about learning academic content. I apologize if this isn't much help. An article I just read says: "Developmentally appropriate practice, often shortened to DAP, is an approach to ...

*November 4, 2015*

**English Speech**

None of what Reed is saying would help in my opinion. A chart would not show me what their homes look like. Visual aid, by definition, is something that is a picture or video.

*November 4, 2015*

**English Speech**

Right away we can take away all the options that aren't visual aids. So we are left with, Object Photograph Video I don't know how many are allowed to select, but I would say all 3 are good examples.

*November 4, 2015*

**History**

"Harriet Tubman was an African-American abolitionist, humanitarian, and, during the American Civil War, a Union spy. Born into slavery, Tubman escaped and subsequently made some thirteen missions to rescue approximately seventy enslaved family and friends, using the ...

*November 3, 2015*

**Tech**

I agree.

*October 1, 2015*

**Physics**

A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 23.0° with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 55.3 kg, and the coefficient of kinetic ...

*September 25, 2015*

**maths**

Are there any answer choices?

*September 23, 2015*

**U.S. History (Ms.Sue)**

Southern Democrats are members of the U.S. Democratic Party who reside in the American South and they walked out of the first democrat convention in 1860 because they wanted to secede and there was much opposition! I'm not Ms. Sue, but I hope I helped! :)

*September 23, 2015*

**English language**

Proper nouns have two distinctive features. It will name a specific item. It will begin with a capital letter no matter where it occurs in a sentence. A common noun names people, places, and thing. Every noun can further be classified as common or proper (see above for proper...

*September 23, 2015*

**Sociology**

Agreed. ^

*September 21, 2015*

**Sociology**

D, feeble and foolish.

*September 21, 2015*

**Algebra**

I forgot the first step! When I said combine I meant that you should combine anything in the parenthesis. Which should be 5! Don't know where 4 came from. Then you can continue on.

*September 18, 2015*

**Algebra**

(7+5)+4*13-2 I used the technique PEMDAS P= Parenthesis E= Exponents M= Multiplication D= Division A= Addition S= Subtraction. Combine 7+4 = (12) + 4 * 13 - 2 There's no exponents so we can skip that part. Next is Multiplication = 12 + (52) - 2 Now combine everything ...

*September 18, 2015*

**History**

I agree with Ms. Sue. :)

*September 14, 2015*

**science**

I'd say that the velocity at the beginning of the trip was around V1 = 40km / 1h → by reading the graph and at the end of the trip was V2 = (45 - 57)km / (3.5 - 2.2)h = -9.2 km/h → also estimating from the graph a = (V2 - V1) / t = (-9.2 - 40)km/h / 3.5h = -14 ...

*September 14, 2015*

**Algebra 2**

Let x be the length of the two equal sides. x/4 is length of the base of triangle. let height = h x^2-(x^2/64)=h^2 (using pythagoras theorem, half of base = x/8) (64x^2-x^2)/64 = h^2 h=(sqrt63*x)/8 Area = 1/2 * base* height Area = 1/2 * (x/4) * (sqrt 63 * x)/8 Area=(x^2 / 32...

*September 14, 2015*

**math**

Find f(5) when f(x)= x2+7 ______ x3+5x

*September 9, 2015*

**Math**

Thank you so much! At first I had that answer, but then I was told that was not correct. Thank you for clearing it up.

*May 14, 2015*

**Math**

Please help! I am confused about this question and can not seem to get the answer. Thanks! 1) You choose a marble at random from a bag containing eight brown marbles, seven yellow marbles, and one purple marble. You replace the marble and then choose again. Find P(brown then ...

*May 14, 2015*

**science**

I would assume most of the members of the species would die but some would survive.

*May 14, 2015*

**Math**

You are correct. :)

*May 14, 2015*

**Math**

Hi there! I am so confused about these questions if anyone could help that would be great. 1. Simplify. x+5/x^2+6x+5 A) 1/x+1; where x= -1*** B) 1/x+1; where x=-1,-5 C) 1/x-5; where x=5 D) x-5 2. Simplify. x^2+3x-4/x+4 A) 1/x-4; where x=4 B) x-4 C) x-1; where x=1 D) x-1; where...

*May 13, 2015*

**calculus**

dy/dx = k / (y^4) where k is a constant Separate the variables (y^4) dy = k dx Integrate both sides (y^5) / 5 = kx + c where c is also a constant

*April 29, 2015*

**Math Please help Ms. Sue**

I'm not Ms. Sue (sorry), but your answer is correct. :)

*April 29, 2015*

**Math**

Yes, I think the answer is C Sasha.

*April 29, 2015*

**Math**

Never mind, I think I got it! Is it C?

*April 29, 2015*

**Social studies**

1) The following, "People want to ensure that Puerto Ricans always identify with the Spanish language and culture." Provides support for which of the following statuses for the country of puerto rico? A) Separate Nation B) U.S. Commonwealth C) U.S. State D) Canadian ...

*April 28, 2015*

**Math**

Diane is putting money into a checking account. Let represent the total amount of money in the account (in dollars). Let represent the number of weeks Diane has been adding money. Suppose that x and y are related by the equation 30x+450=y . Answer the questions below. What is ...

*April 24, 2015*

**Math**

1) What is tan(a) for the triangle shown? BC has a length of 8. BA has a length of 17. AC has a length of 15. The right angle is on the BC sides lower left hand corner. A) 8/15 B) 15/8 C)17/8 D) 8/17 Whenever I try this I get weird answers. I am extremely confused and help ...

*April 22, 2015*

**Math**

Is the answer D?

*April 22, 2015*

**Math**

1) Solve the equation for p. Identify any extraneous solutions. √p=-1 A) -1 is a solution of the original equation. 1 is an extraneous solution. B) 1 is a solution of the original equation. C) 1 is a solution of the original equation. -1 is an extraneous solution. D) ...

*April 22, 2015*

**maath algegra 5**

force of gravity on Earth is 6 times greater than on the moon. As a result, objects weigh 6 times as much on Earth as they do on the moon. A scientific instrument weighs 34 pounds on the moon. How much does the instrument weigh on Earth

*April 21, 2015*

**Math**

Woohoo, I got it, and solved everything! Never mind this question.

*April 21, 2015*

**Math**

So, I know how to solve it. But how do I check my answer? If anyone could help with that it would mean a lot. Thanks!

*April 21, 2015*

**Math**

A) 2y=√5y+6. Show your work on how you solved it and checked to see if it was right. I know the answer is y=2, but I do not know how to get that. So, If anyone could help me that would be amazing. Thank you!

*April 21, 2015*

**Math**

Thank you so much! I really appreciate all your help.

*April 7, 2015*

**Math**

1) When will the dependent variable in the equation y=√x+4-3 equal or exceed to 4? A) x > or equal to -0.17 B) x > or equal to 45 C) x > or equal to 48 D) x > or equal to 53 2) The function t=√d/16 models the time (t) in seconds that an object has been ...

*April 7, 2015*

**math help**

I got - 18x^7+x^2-9/x^7. If that is not correct please comment the choices, if there is any. :)

*April 7, 2015*

**US History**

No clue? Excuse me? Who knew people were so rude on this site.

*April 6, 2015*

**US History**

It would be the first option "reduced influence of religion on the government". The ayatollahs are radical Shia Muslims. They were/are desperate to inflict Shia Islam at every level on their civilians.

*April 6, 2015*

**math**

The answer is 40/870.

*April 6, 2015*

**English**

Are there any choices?

*April 6, 2015*

**Math**

1)How many real number solutions does the equation have? -8x^2-8x-2=0 A) One Solution B) Two Solutions C) No solutions D) Infinitely many solutions If someone could help me with this that would be great since I am confused. Thank you!

*April 6, 2015*

**English**

I choose B, because brainstorming is used to get ideas, not to narrow an essay topic.

*March 23, 2015*

**us history**

Yes, D is correct.

*March 23, 2015*

**science asap**

Thank you so much!

*March 23, 2015*

**science asap**

1) How do decomposers increase the fertility of soil? A) By storing moisture in the soil. B) By breaking down and digesting the remains of dead organisms. C) By making spaces for air and water. D) By burrowing deep below topsoil. I am thinking is is either B or D, but I do not...

*March 23, 2015*

**Algebra 1**

1. 9*10^10 2. 4.2875*10^-11

*March 23, 2015*

**us history**

Excuse me? I was stating what I believe, I also agreed with your answer as well. So, Reed, everyone makes mistakes, for example being that rude to me when I am trying to help is a mistake. :) Thank you.

*March 23, 2015*

**us history**

C is the correct answer for your other question.

*March 23, 2015*

**us history**

It may be D, but it may be A as well. Trust your gut and what you believe is correct.

*March 23, 2015*

**us history**

I would say A) fewer cotton farms in Great Britain Because the growth of the textile industry prompted legal changes allowing the textile mills to flood the land. The land was covered by water to fuel the water wheels of the mills and could no longer be used for farming. As a...

*March 23, 2015*

**us history**

Yes, what are your other questions?

*March 23, 2015*