Saturday

July 4, 2015

July 4, 2015

Total # Posts: 905

**math**

Scientists believe that there is an extremly massive black hole at the center of the milly way. How many times more massive than the Sun would a black hole with a mass of 7.36 x 10^36 kg be? The mass of the sun is approximately 1.99 x 10^30 kg.
*November 15, 2010*

**math**

This is what it said in the book. use the formaula pie = 3.14 4pie r ^2
*November 15, 2010*

**math**

Suppose a white dwarf star has a diameter of approximately 1.6692x10^4 km. Us the formula 4pie^2 to find the approximate surface area of the star
*November 15, 2010*

**math**

what is the simplified form of the expression? (3c^2d^4)^3(2c^5d^8)^3
*November 15, 2010*

**math**

what is the simplified form of the expression? (3c^2d^4)^3(2c^5d^8)^3
*November 15, 2010*

**math**

what is the simplified form of the expression? (3c^2d^4)^3(2c^5d^8)^3
*November 15, 2010*

**Algebra**

What is the simplified form of the expression? (y^-5)-10 -5 and -10 are exponents
*November 15, 2010*

**8th grade science**

What experiments or activities are unacceptable to do with seeds
*November 15, 2010*

**Environmental science**

Sorry this a question but it isn't the one I meant to say. a)What kind of seed do you think are most valuable in this situation?
*November 15, 2010*

**Environmental science**

If You need to feed a village of 100 people and you have only 10 seeds,what would you do
*November 15, 2010*

**Pre-Calc**

Thank you so much!
*November 14, 2010*

**Pre-Calc**

I have two questions how do you solve cos x=sqrt2-cosx on the interval of [0,2pi) and how do you verify sin^2(theta)/1-cos(theta)=1+cos(theta) without negating it to equal 1?
*November 14, 2010*

**Pre-Calculus**

I do but why did u use that one. Im trying to understand because i have a test tomorrow and i have to do well on it.
*November 14, 2010*

**english**

so for the answers i gave their all the cons for eating meat
*November 12, 2010*

**english**

well for pro so far i have less animals die, health improves, look better physically and emotionnally for cons...less protein ingested...
*November 12, 2010*

**english**

Can someone please give me ideas of 3 pros of eating meat and 3 cons of eating meat? Please and thank you
*November 12, 2010*

**Physics**

Thank you! Took me a little whilez to figure it out but I got it.
*November 11, 2010*

**Physics**

Ok so I know how to find the volume. I just need to know how to get the radius.
*November 11, 2010*

**Physics**

A 600-kg weather ballon is designed to lift a 4000-kg package. What volume should the ballon have after being inflated with helium at standard temperature and pressure so the total load can be lifted up? The problem asks for volume. Take it a step further... assume the ballon...
*November 11, 2010*

**Physics**

Alrighty sounds good. Got it. THx
*November 11, 2010*

**Physics**

Ok cool thanks! Is there anyway to start the equation out with sumF = ma though? That is what my teacher stated to do on the paper.
*November 11, 2010*

**Physics**

A rubber ball filled with air has a diameter of 25.0 cm and a mass of 0.540 kg. What force is requiered to hold the ball in equilibrium immediately below the surface of water in a swimming pool? Start equation out by using sumF = ma Answer is 74.9 N I just need to know how to ...
*November 11, 2010*

**Physics**

Ok thx. Sounds good. I already found the velocity so just need to get the pressure. Will do the math. And I need help on the other question you helped me on yesterday =P
*November 11, 2010*

**Physics**

I know the anwers are 11.0 m/s and 1.83 x 10^4 Pa I just need to know how to work it out and how to start it
*November 11, 2010*

**Physics**

A liquid (density = 1.65 g/cm^3) flows through two horizontal sections of tubing. In the first section the cross-sectional area is 10.0 cm^2, the flow speed is 275 cm/s, and the pressure is 1.20 x 10^5 Pa. This tubing then rises 50 cm to the second horizontal section which has...
*November 11, 2010*

**Physics**

I know the answer is 1.25 cm I just need to know how to work it out and how to start it
*November 10, 2010*

**Physics**

A 2.0-cm thich bar of soap is floating on a water surface so that 1.5 cm of the bar is under water. Bath oil of specific gravity 0.60 is poured into the water and floats on top of it. What is the depth of the oil layer when the top of the soap is just level with the upper ...
*November 10, 2010*

**Physics**

A 2.0-cm thich bar of soap is floating on a water surface so that 1.5 cm of the bar is under water. Bath oil of specific gravity 0.60 is poured into the water and floats on top of it. What is the depth of the oil layer when the top of the soap is just level with the upper ...
*November 10, 2010*

**Physics**

Ok nvm i will do the math. Sorry didnt read what they stood for. Thx for the help =)
*November 10, 2010*

**Physics**

ok what is rho? I know the answer to this problem is 9.96 m because our teacher gave us the answer
*November 10, 2010*

**Physics**

A 600-kg weather ballon is designed to lift a 4000-kg package. What volume should the ballon have after being inflated with helium at standard temperature and pressure so the total load can be lifted up? The problem asks for volume. Take it a step further... assume the ballon ...
*November 10, 2010*

**Math**

I believe it would be 42 I got that by multiplying her current height by the percentage that she grew. (36 in)(1.17%) The 1 being her current height and the .17 being what she grew = 1.17
*November 10, 2010*

**math**

108/87 = 1.2414 = 124.14% Then you subtract 100% of what you got because that was your original number 124.14% - 100% = 24.14% Its 24.14% increase
*November 10, 2010*

**math**

Another way you could do it is do 95/80 = 1.1875 x 100 = 118.75 Then subtract 100% from that 118.75% - 100% = 18.75% whoch rounds up to 18.8%
*November 10, 2010*

**physics**

hey, i was wondering if someone could explain and help me with this problems. please and thank you! A person holds an object of mass m = 4 kg on the palm of the hand with the arm stretched as shown in the attached figure. Use the torque equilibrium equation to determine the ...
*November 9, 2010*

**3rd grade**

using four different digits, what is the least sum you can get when you add two 2-digit numbers
*November 8, 2010*

**7th grade math**

thank you
*November 8, 2010*

**7th grade math**

1/15 in percent
*November 8, 2010*

**7th grade math**

THANK YOU
*November 8, 2010*

**7th grade math**

HOW DO YOU TURN 5/8 INTO A PERCENT
*November 8, 2010*

**geography**

what are some characteristics or facts for globilization?
*November 7, 2010*

**geograpgy**

what are some examples of globalization?
*November 7, 2010*

**Computer**

Draw an ERD that shows cardinality relationships among the entities, send the diagram to jesse
*November 6, 2010*

**Physics**

I have the first part of the question (0.061). I need the second part.
*November 3, 2010*

**Physics**

A 75 kg box slides down a 25 degree ramp with an acceleration of 3.60 meters per second squared. Find the coefficient of kenetic friction between the box and the ramp. What acceleration would a 175 kg box have on this ramp?
*November 3, 2010*

**math**

35/105 =16.5 the answer is 5.5
*November 3, 2010*

**7th grade math**

thank you Ms.Sue
*November 3, 2010*

**7th grade math**

am i right
*November 3, 2010*

**7th grade math**

Is it 16 inches
*November 3, 2010*

**7th grade math**

yes ido
*November 3, 2010*

**7th grade math**

Ruth makes a scale drawing of her room.She uses the scale 3/2in:1ft.In the drawing, the dimensions of her room are 18in by 24in.What are the actual dimensions of her room
*November 3, 2010*

**Algebra**

Any help?
*November 2, 2010*

**Algebra**

Factorise completely: 6x^2+10x-5= and 6x^2+8x-3=
*November 2, 2010*

**religion**

why did saint juan diego become a saint?how?
*October 31, 2010*

**algebra 1 b**

The sides of a triangle have measures of x, x, and y, and the perimeter of the triangle is 46. The measure y is 4 centimeters longer than the measure x. Write the solution for this as an ordered pair.
*October 26, 2010*

**Physics**

Since air resistance was ignored, both of them will hit the ground at the same time.
*October 26, 2010*

**Physics**

If 2.0 J of work is done in raising 180 g apple how is it lifted? Please if you answer, do it step by step. Thanks in advance.
*October 24, 2010*

**Physics**

A) v=u+at
*October 23, 2010*

**english**

What term describes the vantage point from which the story is told?
*October 22, 2010*

**Statistics**

As standard deviation increases, samples size _____________ to achieve a specified level of confidence. A. Increases B. Decreases C. Remains the same
*October 21, 2010*

**algebra I**

5x +7= 4y-6 solve the equivalent equation for x thank you
*October 19, 2010*

**algebra I**

9n +12=6n +54 what is n and how do you get it
*October 19, 2010*

**Algebra II**

Complete the box to illustrate the product (x+8)(x+7) __x__________8____ | | | ? | 7x | ? | | | | |__________| ______| | | | | | | x | x^2 | ? | | | | |_________|________| Help me please! I do not know where to even begin.
*October 18, 2010*

**Math - Geometry**

Please help! Need to find the 6th and nth terms in this sequence - and solve for the rule or process. here's the sequence: 1,3,9,27,81 What is the process or formula to get the nth term in the sequence. Thanks!
*October 17, 2010*

**Biology**

Half
*October 17, 2010*

**Quadratic and exponential sequences**

I need to set up a chart to find the 6th and nth terms in this sequence - and soleve for the rule or process. here's the sequence: 1,3,9,27,81 Thanks!
*October 17, 2010*

**Physics**

A 25 kg chain initially at rest on a horizontal floor requires a 365 N horizontal force to set it in motion. Once the chair is in motion, a 327 N horizontal force keeps it moving at a constant velocity. a. Find the coefficient of static friction between the chain and floor. b...
*October 17, 2010*

**chemistry**

Thank you very much ... extremely helpful and very generous of you to volunteer your time and knowledge for this project.
*October 16, 2010*

**chemistry**

also the hcl is liquid form.
*October 16, 2010*

**chemistry**

the solution is 31.45% by weight. I am trying to find out how much of the HCL i use as a base and how much water I need to add to make 500 ml or more at 0.10 m HCL
*October 16, 2010*

**chemistry**

I need 500 ml of 0.10 m HCL solution. I have a 3.785 liter container of HCL at 31.45% concentration. How do I acheive my objective?
*October 16, 2010*

**algebra**

GRAPH EACH EQUATION AND IDENIFY THE Y-INTERCEPT 6X-3Y=9 PLEASE SHOW STEPS IF POSSIBLE.
*October 13, 2010*

**Algebra II**

i am trying to post the table but its not posting correctly.
*October 13, 2010*

**Algebra II**

Hat size head circum head circum 7 3/8 23 1/5 59 ? 22 4/5 ?
*October 13, 2010*

**Algebra II**

Hat size are determined by the measuring the circumference of the head in either inches or centimeters. Use ratio and proportion to complete the following table. Hat size head circum head circum (~1/2 inch) (~centimeter) 7 3/8 23 1/5 59 ? 22 4/5 ? (For the first answer box ...
*October 13, 2010*

**Algebra**

x^2+6x-44/x+9 X squared plus six X minus 44 divided by X+9. Having a hard time with this problem. I need someone to help me step by step or give me some pointers please? Thank you.
*October 11, 2010*

**Chemistry**

In a car engine, gasoline (represented by C8H18) does not burn completely, and some CO forms along with CO2 and H2O. If 5 percent of the gasoline forms CO, A)What is the ratio of CO2 to CO molecules in the exhaust? B)What is the mass ratio of CO2 to CO? C)What percentage of ...
*October 11, 2010*

**Communication**

Résumés must be free from typos because employers: A will not hire anyone who cannot type. B assume that someone who is careless with a résumé would be careless on the job. C believe that typos are evidence of alcohol or substance abuse. D will ...
*October 10, 2010*

**Communication**

Which of the following sentences advocates an idea in a positive way? A "I can't see anyone buying the product at that price." B "The unit is way overpriced." C "Customers can get a better deal anywhere else." D "We can corner the market ...
*October 10, 2010*

**Communication**

In response to a compliment on his excellent oral presentation, a Japanese business executive replies, "No, it wasn't very good." Which of the following is the MOST likely explanation for this response? A He thought the person giving the compliment was his ...
*October 10, 2010*

**communication**

Thank you Ms Sue! :)
*October 10, 2010*

**communication**

I meant A sorry.
*October 10, 2010*

**communication**

Hmm. so the obvious answer would be B then?
*October 10, 2010*

**communication**

In order to appear more authoritative in a speaking situation, you should: A lower the pitch of your voice. B raise the pitch of your voice. C use a sing-song pattern. D avoid stressing syllables. I think it is B but I am not sure.
*October 10, 2010*

**Chemistry**

What is the number of grams of Hydrogen in 5.45 x 10^22 molecules NH3?
*October 9, 2010*

**communication**

Which of the following is NOT a question you need to answer to choose a persuasive strategy? A What do you want readers to do? B What points will the audience agree with? C How strong a case can you make? D What kind of persuasion does your organization value? I am completely ...
*October 7, 2010*

**communication**

You are writing to ask for money for a soup kitchen. Which of the following will BEST avoid having the letter look like a selfish plea for money? A Creating psychological description B Writing thank-you letters to donors C Asking for help at the kitchen and other forms of aid ...
*October 7, 2010*

**calculus**

SinØ = opp/hyp opp is x hyp is 10 SinØ = x/10 10SinØ = x Sin (π/3) = 1/2 10 * 1/2 = 5 Answer: 5 ft/rad
*October 7, 2010*

**math**

im not sure at this point
*October 6, 2010*

**math**

yes thats the way it wes worded
*October 6, 2010*

**math**

this all the info that was given.
*October 6, 2010*

**math**

A 270 in pipe is cut into twp pieces. One piece is twice eight time the length of the other. Find the lengths of the pieces.
*October 6, 2010*

**Organic Chem**

Your answer is correct.
*October 5, 2010*

**Geographyand socity**

I needed help with this too.. haha
*October 5, 2010*

**7th grade**

we need the answers
*September 29, 2010*

**Chem**

4NH3(g) + 3O2(g) -> 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of ammonia?
*September 28, 2010*

**Chem**

4NH3(g) + 3O2(g) -> 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of ammonia?
*September 28, 2010*

**Chem**

4NH3(g) + 3O2(g) -> 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of ammonia?
*September 28, 2010*

**Chemistry**

A newly discovered giant planet has an aver- age radius 12 times that of the Earth and a mass 722 times that of the Earth. Calculate the ratio of the new planet’s den- sity to the Earth’s density.
*September 14, 2010*

**math **

x^6 + 5x^3 – 24) ÷ (x^3 – 3)
*September 12, 2010*