Wednesday

October 22, 2014

October 22, 2014

Total # Posts: 388

**Physics**

two lenses,one converging with focal length 20.0 cm and one diverging with focal length -10.0 cm , are placed 25.0 cm apart. An object is placed 60.0 cm in front of the converging lens. Determine A) The position and B) the magnification of the final image formed.C)Sketch a ray...
*March 25, 2008*

**Physics.**

A shaving/makeup mirror is designed to magnify your face by a factor of 1.33 when your face is placed 20.0 cm in front of it. A) what type of mirror is it? B)Describe the type of image that it makes of your face . C) Calculate the required radius of curvature for the mirror.
*March 25, 2008*

**English Grammar**

Need HELP!!!!!? I need help Grammar correction please!!! Shakespeare in Love 1) What are the main themes of the film? The filmmaker’s message is not clear until we see what happens to the protagonist. The Main themes of the film are love, overcoming obstacles and doing ...
*March 25, 2008*

**Science**

seismograph
*March 24, 2008*

**11th Grade A&P**

yes
*March 24, 2008*

**English**

I posted this before, I need someone to check my grammar please. Shakespeare in Love 1) What are the main themes of the film? The filmmaker’s message is not clear until we see what happens to the protagonist. The Main themes of the film are love, overcoming obstacles and ...
*March 24, 2008*

**geometry**

the formula is C=pie times diameter so to find the diameter it would be... 2368=3.14 times d 2368=3.14d 3.14d=2368 2368/3.14= 754 is the diameter diameter is twice the size of the radius...so the radius would be half of 754...377 is the radius
*March 24, 2008*

**English**

Grammar Correction, Please? Shakespeare in Love 1) What are the main themes of the film? The filmmaker’s message is not clear until we see what happens to the protagonist. The Main themes of the film are love, overcoming obstacles and doing what you believe is the right ...
*March 24, 2008*

**English**

rock hound
*March 24, 2008*

**precalculus applications**

How do I find the equation of a sinusoidal curve from just knowing the lowest point and highest point of it? For example: A weight attached to the end of a long spring is bouncing up and down. If we do not worry about friction, its distance from the floor varies sinusoidally ...
*March 21, 2008*

**maths**

multiply 5500 and 6300 by .065, then multiply 3400 by .04 finally add them together and that is your answer
*March 21, 2008*

**Anatomy and Physiology**

That is correct.
*March 21, 2008*

**math**

simplify the following 7pq ---- 14p(to the power2)q(to the power -2) also (5ab)All to the power -2 x 15a (to the power 2) x b (to the power 3)
*March 16, 2008*

**Math**

200lbs - 175lbs = 25lbs so keith needs to lose 25lbs or more to reach his target weight of 175lbs so 25 divided by 2 (Lbs loss a week) = 12.5 therefore 12.5 weeks will reach his target of 175lbs or 13 weeks to reach 174lbs (which is less, where he wanted to be)
*March 16, 2008*

**math**

what are the first three multiples of 9...is it 9, 18, and 27...or is it 18,27,36
*March 13, 2008*

**math`**

thank you very much...thats what i thought just wanted to make sure>>>thanks
*March 13, 2008*

**math`**

ok?
*March 13, 2008*

**math`**

how many edges does a cube have
*March 13, 2008*

**algebra 2**

so the answer would be 5^1/2....is that right???
*March 11, 2008*

**algebra 2**

i dont know how to write it....its square root of 5 with the 4 on the left side times the square root of 5 with the 4 on the left side
*March 11, 2008*

**algebra 2**

im studying radicals and im having trouble....i need help on this one....i really dont know how to write but here it goes... the nth root is 4square root of 5 times the nth root is 4 square root of 5...i need to simplify the expression
*March 11, 2008*

**Science**

it is zinc ions to the copper
*March 11, 2008*

**algebra**

NEVER MIND I KNOW....GUESS NOONE WAS GOING TO HELP ...
*February 27, 2008*

**algebra**

could you please tell me if this is a polynomial function.... x^2 square root of 2 +x-5
*February 27, 2008*

**algebra**

i need help on these three..thank you...find the real number solutions of the equation..-2v^6=16 2h^5-12=-16h 3q^4+3q^3=6q^2+6q
*February 25, 2008*

**History**

why is Marthin Luther King importantin american histoy..and what inpact did it have on african americans
*February 24, 2008*

**algebra**

find the real number solutions of the equation. w^4+w^3-w=1 could you please show step by step..thank you
*February 24, 2008*

**math**

15% of 20
*February 19, 2008*

**Accounting**

Burrand Company estimates that annual manufacturing overhead costs will be $600,000. Estimated annual operating activity bases are: direct labor cost $500,000, direct labor hours 50,000, and machine hours 100,000. Compute the predetermined overhead rate for each activity base...
*February 7, 2008*

**history**

thanks
*January 10, 2008*

**history**

why did the renaissance start in Italy?
*January 10, 2008*

**social studies**

I can put my arms around it and can hold it in the palm of my hand. I love mine and you love yours. Nothin' says lovin' like something from the oven. What is the answer to this riddle?
*January 4, 2008*

**government**

b. focus the publics attention on specific issues
*December 26, 2007*

**Photo Essay...**

Ummmm.... Sorry, I forgot to mention that I am already about halfway through it, and I can't seem to get back into it. Being a reflection, it is fairly informal, so I simply describe the photos and then explain their meaning. I just always seem to veer away from the screen...
*December 9, 2007*

**Photo Essay Reflection**

Ummmm.... Sorry, I forgot to mention that I am already about halfway through it, and I can't seem to get back into it. Being a reflection, it is fairly informal, so I simply describe the photos and then explain their meaning. I just always seem to veer away from the screen...
*December 9, 2007*

**Photo Essay Reflection**

I have to write a reflection on a photo essay about the Great Depression for English class. It(the reflection) is supposed to explain how the photos show the conditions of the Depression and it is also supposed to relate the photos to the life of the average black male of the ...
*December 9, 2007*

**pyhthon**

In this assignment, you will create a simple grade management system. Think of this as an assignment-sized version of WebCT's "Your Grades" feature. Again, you can have a look at a working grade manager to see how things should work. You can use XHTML code from ...
*November 30, 2007*

**math**

A drawer contains 8 handkerchiefs. There are 2 red, 2 blue, 2 green and 2 black handkerchiefs. How many handkerchiefs have to be draw in order to be sure that you will get a RED one?
*November 25, 2007*

**math**

u get either the front side or the back side
*November 25, 2007*

**Math**

Hello, I'm trying to find the following sequence that relates to the number of ways that paving stones can be laid to make a 3-foot-wide path using 3-foot by 1-foot stones. This is a very complex problem, and I'd appreciate a little help to start me off in the right ...
*November 11, 2007*

**please revise my essay**

it was horrible i am a fifth grade teacher
*November 3, 2007*

**Math**

Choose 5, 10, or 100 as the most reasonable interval for the data. 15, 25, 10, 10, 5 Please explain Thanks
*October 30, 2007*

**English**

Hai!!! I really need help with Page 3 of Curious George goes to a chocolate factory. When I searched in google books, it didn't tell me the page 3. Pls do help me... Thx for helping me.. ^-^
*October 25, 2007*

**math**

does n e 1 knoe!!!
*October 20, 2007*

**math**

ok theres 24 out of 100 which is 24% so how do you find the degrees from 24%
*October 20, 2007*

**math**

hey how are you gonna find the degrees like lets see 24%
*October 20, 2007*

**Accounting urgent Edit**

The management of Stampfer Inc. asks your help in determining the comparative effects of the FIFO and LIFO inventory cost flow methods. For 2007 the accounting records show these data. Inventory, January 1 (10,000 units) $35,390 Cost of 120,000 units purchased 484,338 Selling ...
*October 19, 2007*

**Accounting urgent**

Prepare the journal entries to record the following transactions on Panther Company’s books using a perpetual inventory system. (For multiple debit/credit entries, list accounts in order of magnitude.) (a) On March 2 Panther Company sold $853,700 of merchandise to Eagle ...
*October 3, 2007*

**accounting**

In its first year of operations, Bere Company earned $27,046 in service revenue, $6,667 of which was on account and still outstanding at year-end. The remaining $20,379 was received in cash from customers. The company incurred operating expenses of $14,655. Of these expenses $...
*October 2, 2007*

**Accounting**

ty alot !!now i get it i thought u take 3333/12.
*October 2, 2007*

**Accounting**

At the end of its first year, the trial balance of Riko Company shows Equipment $20,590 and zero balances in Accumulated Depreciation–Equipment and Depreciation Expense. Depreciation for the year is estimated to be $3,333. Prepare the adjusting entry for depreciation at ...
*October 2, 2007*

**u.s. history**

what did thomas jefferson mean when he said the missouri compromise was like a firebell in the night? did he mean that it was never going to work or something like that?
*October 2, 2007*

**Accounting**

At December 31, 2007, before any year-end adjustments, Bollis Company's Prepaid Insurance account had a balance of $2,700. It was determined that $1,500 of the Prepaid Insurance had expired. The adjusted balance for Insurance Expense for the year would be?? plz help urgent
*September 20, 2007*

**Calculus - Limits**

lim x--> 3 (3 - x)/ (x^2 - 9) I know the answer is -1/6, but I can't figure out how to get there.
*September 19, 2007*

**Math**

Thank you so much, that really helped!
*September 11, 2007*

**Math**

If cakes cost 50 cents, and the prices go up 6 percent a year, how much did it cost after two years? Three? Well, I'm not supposed to solve it, but I have to make up a generalized equation. Can someone give me the equation? I'm really confused. Thank you!
*September 11, 2007*

**science**

a community and all of the nonliving things that affect it Are you talking about an ecosystem? However, this also includes living things. I hope this helps. Thanks for asking.
*August 19, 2007*

**science**

three statements that define all living things in term of cell Since this is not my area of expertise, I searched Google under the key words "living cell define" to get these possible sources: http://en.wikipedia.org/wiki/Life http://www.medterms.com/script/main/art....
*August 19, 2007*

**Physics**

Hello everyone I know that when a force is applied it has to exert a force opossite But this really is not in my head can someone please give me an evidence or even a diagram showing how can we exert an opposite force if we are walking forwards Thanks alot When we are walking ...
*June 7, 2007*

**Calculus**

Let f be defined by f(x)= 4x^3-2m, x is less than or equal to -1 , 7x^2+5m , x is greater than -1. Piece wise function. a. Find lim-->-1 from the right side(in term of m) B. Find lim-->-1 from the left side (in term of m). I don't get what do they mean by in term of ...
*May 21, 2007*

**caculus**

A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y=11-x^2. What are the dimensions of such a rectangle with the greatest possible area? Width=? Height=? Area= height*width=y(2x) Area=(11-x^2)(2x) solve for dArea/dx, set to zero, solve ...
*May 19, 2007*

**Calculus**

Use implicit differentiation to find the slope of the tangent line to the curve y/(x+7y)=x^5+7 at the point (1,(-8/55). can anyone help me work out the problem step by step? y (x+7y)-1 = x5 +7 dy(x+7y)-1-y((x+7y)-2*(dx +7dy)=5x4 multiply it out, gather the dx and dy terms, and...
*May 19, 2007*

**Calculus HELP plz**

Find the area of the surface obtained by rotating the curve y=sqrt(4x) from x=0 to x=1 about the -axis. about the x-axis. surface area= ⌠ 2pi * f(x)*sqrt[1 + (f'(x))^2] dx from a to b ⌡ it's been 45 years since I used that formula. I ended up with the ...
*May 12, 2007*

**Physics and chemistry**

why does the electrical resistance in your body decrease when you get wet Salt is in the skin, salt water is a good conductor.
*May 6, 2007*

**Calculus HELP plz**

Sketch the region enclosed by the given curves. Decide whether to integrate with respect to x or y. Then find the area of the region. 2y=4x^1/2,y=5,2y+1x=5 Do you really mean "2y+1x=5" ? It is not customary to use the coefficient 1 in front of a variable. It is ...
*May 5, 2007*

**calculus edit**

1. Find the volume formed by rotating the region enclosed by x=5y and x=y^3 with y is greater than or equal to 0 about the y-axis. 2. Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis y=18x-6x^2 , y=0 : about the ...
*May 4, 2007*

**Calculus**

1. Find the volume formed by rotating the region enclosed by x=5y and x=y^3 with y¡Ý0 about the y-axis. 2. Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis y=18x-6x^2 , y=0 : about the y-axis. PLease...
*May 4, 2007*

**Calculus urgent**

For the intergral of -(x^2)/3 +6 interval [0,3] Rewrite it as a function of n using the right hand endpoint without any summation sign. can anyone help me start this problem out? I noticed somebody else had that post before, perhaps it was you. I am not sure exactly what you ...
*April 19, 2007*

**calculus**

For the intergral of -(x^2)/3 +6 interval [0,3] Rewrite it as a function of n using the right hand endpoint without any summation sign. can anyone help me start this problem out?
*April 19, 2007*

**Calculus**

The following Summation 1 2 1 2 1 2 ------ x - + ------ x - + ------ x - 1+(2/n) n 1+(4/n) n 1+(6/n) n is a right Riemann sum for this integral ç f(x)dx With subintervals [1,3] can someone help me solve for the inegrand which is f(x).?
*April 16, 2007*

**calculus**

A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of the rectangle. What is the area of the largest possible Norman window with a perimeter of 33 feet? I got h=10.180619625,r=2.458141125 and Area = 59....
*March 27, 2007*

**calculus**

I need help on finding the local linear approximation of tan 62 degree. i got 1.77859292096 can someone check if i got it right? tan(60+2) = (tan 60+ tan 2) / (1- tan60 tan 2) But tan2 appx = sin 2deg = sin2PI/180= 2PI/180 tan 62=(tan 60+2PI/180) / (1- tan60 2PI/180) check ...
*March 20, 2007*

**Calculus test tomorrow**

A plane flying with a constant speed of 24 km/min passes over a ground radar station at an altitude of 5km and climbs at an angle of 35 degrees. At what rate, in km/min, is the distance from the plane to the radar station increasing 4 minutes later? I know side A=5 but how do ...
*March 8, 2007*

**MATH**

A plane flying with a constant speed of 24 km/min passes over a ground radar station at an altitude of 5km and climbs at an angle of 35 degrees. At what rate, in km/min, is the distance from the plane to the radar station increasing 4 minutes later? You should draw out a ...
*March 8, 2007*

**spelling**

glue:sticks::thorns
*January 16, 2007*

**math**

solve 2x^2+3x+8=0 and express the solutions in a+bi form. Let's use the quadratic formula to solve for x and express those solutions in a+bi form. x = [-b + or - sqrt(b^2 - 4ac)]/2a Note: sqrt = square root. a = 2, b = 3, and c = 8 from your problem. Therefore: x = [-3 + ...
*January 10, 2007*

**math**

factor 243p^5+q^15 Since you have powers of p and q by themselves in separate terms, it cannot be factored. Are you sure you copied the question correctly?
*January 10, 2007*

**Math**

find an equation for a ploynomial function with zeros, negative 8, negative 3 over 4, 1 over 5, and 2. hey it is 53h8kkds f (x) = x(x+8)(x+ 3/4)(x- 1/5)(x-2) will be zero when any one of the factors is zero. Multiply the factors to get the polynomial form.
*January 10, 2007*

**Math**

a square + b square = 80 ft (c Square) Through trial and error I can tell you that 6 squared (36) and 12 squared (44)are what you're solving for, but I just used trial and error to figure it out. 12 square is 144, not 44 a and b can be a combination of many numbers. For ...
*January 2, 2007*

**Math-approximation with fractions:7th grade math**

15/56 and 8/35
*November 19, 2006*

**Physics**

A__2Min.______B_____2Min.________C This makes no sense to me. Can you amplify?
*November 14, 2006*

**Chemistry**

NH3(aq) --> NH4OH NH4OH + CuCl2 --> Cu(OH)2 + NH4Cl First a massive precipitate forms (the copper hydroxide), however as more ammonia is added the equilibrium shifts to the diaquatetrammine copper(II) complex. Your best guess: CuCl2(aq) + 6NH3(aq) -->[Cu(NH3)4(H2O)2]2...
*November 7, 2006*

**Chemistry**

a)CO2- has highest molecular weight b) all of them same because kinetic energy is determined by temperature, and thats the same c)CO2- has most electrons d) He-smallest size
*October 22, 2006*

**English**

please anybody i need help i will fail other wise
*October 17, 2006*

**English**

i need help paraphrasing
*October 17, 2006*

**nucleus true facts**

wow,, this website is useful !!!!!!!!!!
*October 4, 2006*

**word unscramble**

hey wats up my friend
*September 28, 2006*