Wednesday

April 1, 2015

April 1, 2015

Total # Posts: 426

**calculus**

Find the coordinates of all points on yhe graph of y= 1-x^2 at which the tangent line passes through the point (2,0).
*March 23, 2010*

**Math **

0.3(11x+4) greater than 2.1-(x+8)
*March 21, 2010*

**Physics**

At an amusement park, a swimmer uses a water slide to enter the main pool. The swimmer slides without friction, and descends through a vertical height of 2.89 m. Find the swimmer's speed at the bottom of the slide if she starts with an initial speed of 0.870 m/s.
*March 9, 2010*

**math**

Identify n(S) for the given set S = { 5, 10, 15, 20, 25, 30, . . .}
*March 1, 2010*

**math**

Express the ratio in simplest form. 48 feet to 20 feet
*February 21, 2010*

**Math**

42 divided by 2=21 , 21-12=9, 9+21=30,30+12=42
*February 4, 2010*

**Sci**

cool thanks!
*December 10, 2009*

**Sci**

what are good materials to make a wind powered car out of? i mean a fake car like milk jugs stuff like that
*December 10, 2009*

**sci**

no, i mean a fake car like milk jugs stuff like that
*December 10, 2009*

**sci**

what are good materials to make a wind powered car out of?
*December 10, 2009*

**MATH**

solve for x, 4 1/2 + x = 6 1/6
*December 2, 2009*

**Calc**

A metal cable has radius r and is covered by insulation, so that the distance from the center of the cable to the exterior of the insulation is R. The velocity v of an electrical impulse in the cable is v = -C(r/R)^2*ln(r/R) where c is a positive constant. Find the following ...
*December 2, 2009*

**English**

Hamlet: I need to look at the passages from Acts IV and V and assess their impact within the context of the whole play. I have already done so and it's giving me these questions using a passage. I need some help, please. :) Passage 1: " Now, whether it be Bestial ...
*November 30, 2009*

**English**

I need help with this. “What is Hamlet ‘about’?” and “What are its enduring themes and messages?”. The responses you provide do not have to be governed by the Values and Worldviews (Dialectic) approach. Substantiate your own ideas with evidence ...
*November 29, 2009*

**spanish**

It should be abrázame fuerte, which means "hold me tight". The other is toda la noche which means "all night". brasa mi puerta means "grill my door" LOL
*November 21, 2009*

**physics help!!!**

wow, my apology. im sorry. i was expecting to get explainations and get the right equations. im very interesting in physics and i found this great website. you all are very helpful! so i thought i could get as much help as i could. AND you said that i can repost some questions...
*November 17, 2009*

**physics help!!!**

What is the minimum work needed to push a 900 kg car 460 m up along a 17.5° incline? (a) Ignore friction. (b) Assume the effective coefficient of friction retarding the car is 0.30?
*November 17, 2009*

**8th Grade Science**

It slows down the the dissolving process due to the vicosity of the gas;the gas particules are always together which make the particules move slower but they stay stronger
*November 17, 2009*

**Maths**

change so x is the subject y=2/x and y=-n/x the minus is for the whole fraction please show your working thanks in advance :)
*October 31, 2009*

**Maths**

how would you work out y=2/x and y=-n/x the minus is for the whole fraction please show your working thanks in advance :)
*October 31, 2009*

**Maths**

The book states that the answer is one and a third i got the same answer as Rachel
*October 30, 2009*

**Maths**

x/2 + x/4 = 1 the answer is 1 1/3 can you show me the method please thanks in advance :)
*October 30, 2009*

**Statistics**

For df = 25, determine the value of A that corresponds to each of the following probabilites: a. P(t >- A)= 0.025 b. P(t <- A)= 0.10 c. P(-A <- t <- A)=0.99
*October 3, 2009*

**science**

Hi Ali :)
*September 23, 2009*

**english**

how does the text "lord of the flies" relate to journeys?
*September 10, 2009*

**us history**

In what ways does the Magna Carta still impact law?
*June 24, 2009*

**Physics**

You are told that the volume of a sphere is given by V=(sqrt)d^3/4, where V is the volume and d is the diameter of the sphere. Is this equation dimensionally correct?
*June 20, 2009*

**Physics**

Roughly how high could a 305 K copper ball lift itself if it could transform all of its thermal energy into work? Copper has a specific heat of 386J/kg * K measured near room temperature (293 K) and atmospheric pressure.
*March 20, 2009*

**chem**

Is this a good way to define crystallization: decreasing the temperature or evaporating the solvent can create crystals?
*March 11, 2009*

**chemistry help**

45
*March 8, 2009*

**english**

The essay has to be 350 words What I learned in Home School Home school is easer than public school. I am able to learn all the same subject at home as I did in public school. I am also able to learn other things that you are not able to do in public school. History taught me...
*February 26, 2009*

**Math-Factoring**

Hey I need help factoring 5x^4-180x^2. I'm used to factoring with three numbers, and not two. How would you do just two like this? Thanks
*January 19, 2009*

**pre-algebra**

You want to paint a wall that is 8 3/4 feet high and 11 1/4 feet long. You have a can of paint that will cover 200 square feet with one coat. A. find the area of the wall. b. if you want to apply two coats of paint , do you have enough paint? explain
*January 7, 2009*

**science**

a device that uses electicity to a force to move things
*January 7, 2009*

**5th grade math**

um so number 2 is -1.667? and 3 and 4 is what i dont understand
*January 6, 2009*

**5th grade math**

write the fraction or mixed number as a decimal. 1/5 -5/3 3 4/25 8 5/44
*January 6, 2009*

**Math**

Solve this Equasion x=2y 4x+y=12 using the substitution method. Please give solution
*December 24, 2008*

**math**

to join a gym your friend pays a one-time fee of $75 and $45 per month for the duration of the membership.Your friend has paid a total of $345.How long has your friend been a member of the gym??
*December 10, 2008*

**6 grade**

to join a gym your friend pays a one-time fee of $75 and $45 per month for the duration of the membership.Your friend has paid a total of $345.How long has your friend been a member of the gym??
*December 10, 2008*

**algebra with pizzazzi**

Need help why are Mr and Mrs number so happy?
*December 5, 2008*

**help plzzz**

this is what i do with all my math work
*December 3, 2008*

**calculus**

Consider the function f(x)=12x^5+30x^4–160x^3+5 . f(x) has inflection points at (reading from left to right) x=D , E , and F D= E= F=
*November 25, 2008*

**calculus**

f(x)=x^3/(x^2-1) find the regions of concavity and inflection points
*November 25, 2008*

**Math**

Describe an application for the use of ratios or proportions
*November 22, 2008*

**7th grade**

explain the usefulness of algebra in modern mathematics.
*November 9, 2008*

**physics**

Consider the 59 N weight held by two cables The left-hand cable is horizontal. What is the tension in the cable slanted at an angle of 51◦? Answer in units of N. What is the tension in the horizontal cable? Answer in units of N.
*November 7, 2008*

**physics**

Consider the 59 N weight held by two cables The left-hand cable is horizontal. What is the tension in the cable slanted at an angle of 51◦? Answer in units of N. What is the tension in the horizontal cable? Answer in units of N.
*November 7, 2008*

**Critical Thinking**

THE STATED PREMISE MAKES SENSE, BUT THE CONCLUSION IS STILL VAGUE
*September 29, 2008*

**Math**

If the area of the base of a cone is 25 pi square units, express the volume of the cone as a function of its height?
*September 11, 2008*

**Accounting**

When the net price method of recording purchases is used, the debit to purchases is for:
*August 10, 2008*

**math-116 final is it a timed test?**

It is not a timed test
*June 22, 2008*

**physics**

Consider the bending of light by the gravitation of the Sun as described by Newtonian physics. Light of frequency f passes at a distance d from the center of the Sun, which has a mass M. Show that the bending angle of the light is proportional to M/d.
*May 28, 2008*

**Applied Math- Gr.11**

A farmer wants to enclose three sides of a rectangular pasture unsing 1000 yards of fencing. The fourth side does not require fencing because it borders a river. What dimensions (length and width) should the farmer choose in order to enclose the greatest area? a) Find at least...
*May 1, 2008*

**physics**

Okay the second one is the third answer because something like M(a+g) where m is the weight a is the acceleration and g was 9.8 so I got 844.87 the first one I still cant figure it out.
*April 30, 2008*

**Physics**

If an airplane is moving at a constant velocity of 400 m/s for 20 s, what is its acceleration during this period? 0 m/s squared 20 m/s squared 40.82 m/s squared need more information wouldnt it be need more information because isnt acceleration ending velocity minus starting ...
*April 29, 2008*

**spanish**

Can you please help me with my spanish homework :? ~.~.~.~.~.~. I did most of it,but I'm stuck on a few,so please help :) ~.~.~.~.~.~. You are a contestant on a game show. The host of the show has given you these answers. Write the corresponding questions 3. El primer ...
*April 20, 2008*

**Social studies**

What substance was used to stuff the nostrils?
*April 6, 2008*

**social studies**

what is the chemical that was used to embalm the organs?
*April 6, 2008*

**social studies**

what are the mummy-shaped figures that worked in the afterlife's fields for the mummy
*April 6, 2008*

**Math**

What is the probability that the next cyclone to develop in Australian waters will cross the Qld coast (Apply conditional and total probability). Condition is cyclones that cross the Qld coast are only generated in the south pacific. Cyclones generated in Australian waters is ...
*April 4, 2008*

**chemistry**

temperature - as you increase the temperature, the particles speed up... KE = 1/2 mv^2 so an increase in velocity will in turn increase KE.
*March 5, 2008*

**calculator question.. please answer ASAP**

you just input the number in the parenthesis, then square the result.
*March 5, 2008*

**PHYSICS!!!**

c) w = 110 rev/min a = (alpha)r What equation do I use for getting alpha? Is the angular acceleration constant as well. Do I use the angular acceleration I get for (a) and just multiply it by the radius? How do I get angular acceleration?
*March 5, 2008*

**PHYSICS!!!**

The flywheel of a steam engine runs with a constant angular velocity of 220 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 2.7 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of the wheel ...
*March 5, 2008*

**physics**

The flywheel of a steam engine runs with a constant angular velocity of 220 rev/min. When steam is shut off, the friction of the bearings and of the air stops the wheel in 2.7 h. (a) What is the constant angular acceleration, in revolutions per minute-squared, of the wheel ...
*March 5, 2008*

**PHYSICS**

Thanks!
*March 1, 2008*

**PHYSICS**

Fig. 6-48 shows a conical pendulum, in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.038 kg, the string has length L = 1.2 m and negligible ...
*March 1, 2008*

**Long Division of Polynomials**

5x^2-17x+3 over x-4
*February 11, 2008*

**can someone proofread this ASAP! Please!**

soley...spelled wrong in the decision making...no hyphen Best of themselves in a relationship...no s tiding...spelled wrong
*January 14, 2008*

**geomotry**

298.2529
*January 7, 2008*

**Math Analysis**

When simplifing 1/a-3 - 1/3-a do I procede by multi. by the recipercal or would I just set them equal to each other.
*December 15, 2007*

**math analysis**

how would I simplify: -3i^4
*December 15, 2007*

**pre-Algebra**

Write the following as a fraction and show your work. 0.83 (the three is repeating) I don't know how to do it with only one of the numbers repeating and it is not in my book.
*December 11, 2007*

**Math**

Solve the simultaneous equation x+y=1 x squared + y squared=25
*December 8, 2007*

**english**

d? not 100 on that tho sorry
*December 2, 2007*

**accounting**

the question is, Billed client 1800 for cleaning services what two entries to i have to post. im having a blank moment.
*December 2, 2007*

**Am I correct on this question (accounting)**

i think the only thing that gets adjusted is the Accumulated Depreciation but im not 100% sure.
*December 2, 2007*

**Crossword Question**

this Canadian Act suspends the individual rights of her citizens. what is it???
*November 26, 2007*

**Ionic compounds**

Sodium nitrate
*November 24, 2007*

**math**

Thanks that kinda but not really helps me.
*November 14, 2007*

**math**

This one is kinda hard. "A ballon in the shape of a cylinder with hemispherical ends of the same radius as that of the cylinder is shown. The ballon is being inflated at the rate of 261pi cubic centimeters per minute. At the instant the radius of the cylinder is 3 ...
*November 14, 2007*

**ECON, HELP?!?**

Economyst, My prof says only a was right at 100 billion, but b, c, and d were wrong?? I appreciate the help anyway cause she was on vacation. I have posted the answers she got.... 2. The goverment raises taxes by $100 billion. If the marginal propensity to consume is 0.6, what...
*October 27, 2007*

**econ, help???**

Economyst, My prof says only a was right at 100 billion, but b, c, and d were wrong?? I appreciate the help anyway cause she was on vacation. I have posted the answers she got.... 2. The goverment raises taxes by $100 billion. If the marginal propensity to consume is 0.6, ...
*October 27, 2007*

**ECON-one was wrong?**

My prof says only a was right at 100 billion, but b, c, and d were wrong?? I appreciate the help anyway cause she was on vacation. I have posted the answers she got.... 2. The goverment raises taxes by $100 billion. If the marginal propensity to consume is 0.6, what happens ...
*October 26, 2007*

**ECON**

CAN ANYONE PLEASE HELP// 1. In the Country of Wiknam, the velocity of money is constant. Real GDP grows by 5 percent per year, the money stock grows by 14 percent per year, and the nominal interest rate is 11 percent. What is the real interest rate? 2. The goverment raises ...
*October 23, 2007*

**econ-HELP!**

CAN ANYONE PLEASE HELP// 1. In the Country of Wiknam, the velocity of money is constant. Real GDP grows by 5 percent per year, the money stock grows by 14 percent per year, and the nominal interest rate is 11 percent. What is the real interest rate? 2. The goverment raises ...
*October 23, 2007*

**ECON-can anyone help**

CAN ANYONE PLEASE HELP// 1. In the Country of Wiknam, the velocity of money is constant. Real GDP grows by 5 percent per year, the money stock grows by 14 percent per year, and the nominal interest rate is 11 percent. What is the real interest rate? 2. The goverment raises ...
*October 22, 2007*

**ECON--HELP!!!**

I am at work and am sending this on my cell phone.. BEFORE MY EXAM TONIGHT, CAN ANYONE PLEASE HELP// 1. In the Country of Wiknam, the velocity of money is constant. Real GDP grows by 5 percent per year, the money stock grows by 14 percent per year, and the nominal interest ...
*October 22, 2007*

**ECON--HELP!?!?!**

Oh shoot, i dont have the text right now---am at work and need to know what thses do for review--PLEASE HELP??
*October 21, 2007*

**ECON--HELP!?!?!**

1. In the Country of Wiknam, the velocity of money is constant. Real GDP grows by 5 percent per year, the money stock grows by 14 percent per year, and the nominal interest rate is 11 percent. What is the real interest rate? 2. The goverment raises taxes by $100 billion. If ...
*October 21, 2007*

**econ--HELP!!**

THANK YOU, you are GREAT, its a review quest. and i do not have the book.
*October 21, 2007*

**econ--HELP!!**

QUESTION Consider an economy described by the following equations: Y=C+I+G Y=500 G=1,000 T=1,000 C=250+0.75(Y-T) I=1,000-50r a.In this economy, compute private saving, public saving, and national saving. b. Find the equilibrium interest rate. c. Now suppose that G rises to 1,...
*October 21, 2007*

**ECON-HELP!!**

1. In the Country of Wiknam, the velocity of money is constant. Real GDP grows by 5 percent per year, the money stock grows by 14 percent per year, and the nominal interest rate is 11 percent. What is the real interest rate? 2. The goverment raises taxes by $100 billion. If ...
*October 21, 2007*

**macro**

I need help with this question and am a student here. Can you PLEASE show me how to do this?? QUESTION Consider an economy described by the following equations: Y=C+I+G Y=500 G=1,000 T=1,000 C=250+0.75(Y-T) I=1,000-50r a.In this economy, compute private saving, public saving, ...
*October 20, 2007*

**Chemistry**

I think the answer is Fe_2S_3 (underscore meaning subscripts). But not sure how the numbers are associated. And why is Iron (II) sulfide = FeS (no subscript)?
*October 3, 2007*

**Chemistry**

What is the formula for Iron(III) sulfide? And why?
*October 3, 2007*

**bio science**

Any ideas for a simple scientific study? Question, observation, hypothesis, testing, results and conclusion. Needs to be fairly simple and able to be tested an ample amount. Just looking for some ideas right now. If i can incorporate stream health, that would be great.
*September 21, 2007*

**human bones**

Im studying a handout on human bones for a quiz. This handout shows the leg bones being Tibia and Fibia. But which is which? Same for ulna and radius please.
*September 17, 2007*

**Economics/ history**

Describe the hierachies in monetary value of various monies that existed in the US in 1816. Which monies were most favored and why?
*September 12, 2007*

**math**

is that suposed to be quotient of p and 3?
*September 10, 2007*

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