Sunday

February 26, 2017
Total # Posts: 297

**math**

1. 63x7 2.63/7-> / r 3.70.5 - 42.3 4.89x4

*October 20, 2010*

**college chemistry**

An electrical heater is used to add 19.50 kJ of heat to a constant-volume calorimeter. The temperature of the calorimeter increases by 4.50°C. When 1.75 g of butanol (C4H9OH) is burned in the same calorimeter, the temperature increases by 14.58°C. Calculate the molar ...

*October 16, 2010*

**college chemistry**

Manometers can use liquids other than mercury to measure small pressure differences. On a day when the barometric pressure is 761.7 torr, a water manometer, connected between the atmosphere and a glass bulb containing a sample of helium gas has a height difference of 26.1 cm, ...

*October 16, 2010*

**math**

a quarter after four in the afternoon in digital form

*September 29, 2010*

**social studies**

at its point how wide is west podiatry from east to west

*September 22, 2010*

**chemistry**

Use the concepts of effective nuclear charge, shielding, and n value of the valence orbital to explain the trend in atomic radius as you move across a period in the periodic table.

*September 19, 2010*

**math**

jenna wants to purchase a pad of drawing paper for $5.00, a charcoal pencil for $0.75, and an eraser for $1.25. how much money doses she need altogether to buy the supplies

*September 13, 2010*

**math**

6.the difference of 8 and 5 is? 7.the expanded from of 654 is 600+50+____

*September 13, 2010*

**geometry**

i don't even know man.

*August 26, 2010*

**elementary math**

How many different ways can a committee of 9 be selected from a larger organization of 20 people?

*August 7, 2010*

**elementary math**

A student has a penny, nickel, dime, and quarter distributed two coins apiece to his front two pants pockets. What is the probability that the front right pocket has more than 30¢ in it?

*August 7, 2010*

**math**

Q-2: In a subdivision, 67% of the homes have detached garages, 32% have a patio, and 13% have both. What is the probability that a house has a patio if you know that it has a detached garage?

*July 28, 2010*

**algebra**

sqrt root of x+2=3 need help

*May 30, 2010*

**Physics**

two converging lenses placed L1=20 cm apart. the focal lengths are f1=10 cm and f2=20cm 1) where is the final image located for an object that L2=30cm infront of the first lens? 2)what is the total magnification of the lens system? *diagram* {Object}|--l2--|{lens1 = f1}|--L1...

*April 27, 2010*

**health**

Medical and clinical staffs, such as physicians and nurses, have roles and responsibilities different from those of hospital administrators. · Describe at least two roles of medical or clinical staff, and two roles of hospital administration that are important. ·...

*March 21, 2010*

**4gr math**

forty-five is how much less than fifty-four

*March 18, 2010*

**4gr math**

no its odd

*March 18, 2010*

**4gr math**

0.40+0.15 is even so is that the really answer

*March 18, 2010*

**4gr math**

is the value of 3 nickels and 4 dimes an even number of cents or an odd number of cents

*March 18, 2010*

**4gr math**

round 64 to the nearest ten. round 87 to the nearest ten. then add the rounded numners.

*March 18, 2010*

**4gr math**

how do you draw a perpendicular lines

*March 18, 2010*

**4gr math**

use the digits 4,8 and 7 once each to make an even number greater than 800

*March 18, 2010*

**math**

one kilometer is how many meters

*March 16, 2010*

**math**

Nine dimes are what fraction if a dillor.... write the value of nine dimes using a dollor sign and a decimal point

*March 16, 2010*

**4gr math**

how many degrees cooler is a temperature of 34.f to a temperature of 47.f

*March 8, 2010*

**4gr math**

an adult cheetah weighs about 130 pounds. an adult mountain lion weighs about 170 pounda. a student estimates that a mountain lion weighs about twice as much as a cheetah. is the estimate reasonable? explain why or why not

*March 8, 2010*

**4gr math**

what does one yard equal

*March 7, 2010*

**4gr math**

if the diameter of a circle is one foot, then the radius of the circle is how many inches?

*March 7, 2010*

**4gr math**

...,450,470,480,__, __, __,... what are the nextthree numbers in this counting sequence?

*March 7, 2010*

**4gr math**

on the morning of an important game,gail woke up at the time shown on the clock. she wanted to up 2 hours 35 minutes later. what time did gail want to wake up

*March 3, 2010*

**4gr math**

write 7026 in expanded form. then use words to the number

*March 2, 2010*

**math**

i don't inderstand what u mean by when you say find the area of the individual square - find the area of the room - divide the area of the room by the area of the individual square to find how many floor tiles are needed

*March 2, 2010*

**math**

leah wants to put square floor tiles that measure one foot on each side in a room that is 9 feet and 9 feet wide. How many floor tiles will leah need? is your answer reasonable? explain why

*March 2, 2010*

**math**

use digits to write four hundred seventy-five thousand three hundred forty-two. then circle the digit in the ten-thousands place

*March 2, 2010*

**poop**

yolo

*February 22, 2010*

**thermochemistry college**

Yes! ...She has a big butt!

*December 8, 2009*

**Fundamentals of Electricity**

The electric field at one face of a parallelepiped is uniform over the entire face and is directed out of the face. At the opposite face, the electric field is also uniform over the entire face and is directed into that face (see Fig. 3). The two faces in question are inclined...

*November 30, 2009*

**Fundamentals of Electricity**

The box-like Gaussian surface of Fig. 1 encloses a net charge of +24.0ε0 C and lies in an electric field given by N/C, with x and z in meters and b a constant. The bottom face is in the xz plane; the top face is in the horizontal plane passing through y2 = 1.00 m. For x1...

*November 30, 2009*

**English**

In "Shall I Compare Thee to a Summer's Day", what is an example of personification?

*November 29, 2009*

**7th grade Math**

did't work with me either

*October 30, 2009*

**7th grade Math**

x x x x x x x x x x x x

*October 30, 2009*

**math**

Please help me solve this problem... thanks! 1.Find the equation of the line that cntains the pont (5, -1) and has slope -1/2 2.find the equation of the line that passes through the points (-2,1) and (1,-5)

*October 26, 2009*

**MATH**

I Am Doing Equations. y=2.5x-15=220 Please Help Me Solve This Question. :}

*October 14, 2009*

**9th grade, Biology**

the jellyfish would swell swell swell and then boooom burst..... because the jellyfish would be placed in hypotonic environment....

*September 23, 2009*

**physics**

An object starts falling under gravity from rest. If it completes 9/25 of its journey within the last second. Find the total time taken and the total displacement?

*September 12, 2009*

**math- continuance of problem**

Find the largest angle for which sine and tangent agree to within two significant figures.

*August 28, 2009*

**advanced math**

a dog food bowl , a water dish and a bed for olivias dog cost before tax is 5, 10, 5 and 12 dollers. if these purchases have a 5 % sales tax added how much did she spend with tax encluded?

*August 28, 2009*

**advanced math**

what is 4% of 150?

*August 28, 2009*

**math**

I think that is how the question is suppose to be interpreted Reiny. Very confusing wording.

*August 28, 2009*

**math**

If you had to put the answer in radians what would it be?

*August 28, 2009*

**math**

Find the largest angle for which sine and tangent agree to within two significant figures. Please explain ^_^

*August 28, 2009*

**math b**

the vertices of triangle ABC are A(-2,3), B(0,-3), and C(4,1). prove, by means of coordinate geometry, that the median to side BC is also the altitude to side BC.

*May 25, 2009*

**social studies**

what is causing nuclear proliferation? what is being done to prevent it?

*May 24, 2009*

**MATH**

2/13 for the red marbles and 3/13 for the rest of the marbles

*April 21, 2009*

**spanish**

plz help

*March 28, 2009*

**spanish**

how do you say: This mourning i was wonken up by the sounds of the birds calling my name. I stood up with a smile to get on with my day.... in spanish

*March 28, 2009*

**Russian Literature**

I have to write out a thesis and outline about how Russians view American medical technology/advancements/procedures/doctors. I have no idea how to start this and how to prove my topic. Here is the magic thesis statement: By looking at ________, we can see ________, which most...

*March 22, 2009*

**algebra**

-2+3b

*March 19, 2009*

**English**

the first one makes the most sense

*March 19, 2009*

**science-biology**

name two processes for which DNA is responsible for what are the three components to a DNA nucleotide

*March 19, 2009*

**spelling**

will+not=won't

*March 19, 2009*

**math b**

solve each system of equations algebraically: x^2+y^2=18 x+y=4

*March 5, 2009*

**math b**

yes

*March 5, 2009*

**math b**

solve each system of equation algebraically: x2+y2=18 x+y=4

*March 5, 2009*

**spanish**

how do you say: "i like my rabbit and guinea pig"

*February 22, 2009*

**english**

how do you do a gerund phrase as the subject?

*December 9, 2008*

**6th grade**

if i have 152 dollars with a discount of 20 percent whant would the total be?

*November 16, 2008*

**research writing**

Finding, Evaluating, and Utilizing Credible Information; Appropriate Style Guidelines; the Center for Writing Excellence; and the completed Appendix D Complete an annotated bibliography of the sources you plan to use in your research paper. Answer the following question: What ...

*September 30, 2008*

**Math**

How would you work this problem? Thanks! Josie paid $72.00 for a baseball glove. Price reflected 10% discount off regular price. What was regular price?

*September 9, 2008*

**math**

Find the rate: 392feet/8second

*September 4, 2008*

**chem 111**

What is the molarity of a solution of 10.0% by mass cadmium sulfate, CdSO4 (molar mass = 208.46 g/mol) by mass? The density of the solution is 1.10 g/mL.

*August 26, 2008*

**riddle**

nothing -its something in its own sence like in the dictonary

*August 25, 2008*

**Algebra**

x^2+4x-24/x-3

*August 1, 2008*

**Maths**

hello Can someone please help me with solving simultanaous equations using graphs My problem is that i don't know how to plot them on the actal graph and nor I know how to plot the gradient withing this paticular situation I need help with some steps please MY IGCSE's ...

*May 3, 2008*

**chemistry**

1. what do the spectral lines represent in the bohr atomic model? 2. What do the black spaces represent in the Bohr atomic model?

*March 18, 2008*

**History**

How exactly did the invention of the cotton gin affect the constitution? I know it increased the cotton production and slaves but i don't see how ti did anything for the constitution.

*September 17, 2007*

**anthropology**

what does it mean when my teacher says write an essay that explores how issues surrounding diversity and culture inform your understanding of cultural anthropology....i totally don't understand the question ...like what could be an example?

*September 12, 2007*

**college algebra**

D.

*August 27, 2007*

**factoring**

I cannot figure these out.Can someone Factor completely: 3x2 - x - 4 I suppose this is actually 3x^2 -x-4 If so: (3x-4)(x+1) Now I'd like you to look at the following website: http://tutorial.math.lamar.edu/AllBrowsers/1314/Factoring.asp

*May 23, 2007*

**factoring**

Factor completely: 2x2 – 50 To indicate x squared, use this notation — x^2. 2x^2-50 = 2(x^2-25) You should be able to continue the factoring with the site that Lance has given you. I hope this helps. Thanks for asking.

*May 23, 2007*

**Can someone please help**

Can someone show me how to find the sum of this equation and put it in it's simpliest form? (x^2)/(x^2-25)+(7x+10)/(x^2-25) They have a common denominator: x^2-25 which can factor to (x+5)(x-5) The numerator will add to x^2+7x +10 which can factor to (x+5)(x+2) Notice the ...

*May 23, 2007*

**math**

The head of an industrial machine moves in a straight line horizontally backwards and forwards from a central position. The movement can be modelled using the sine wave d = 80 sin ( pie t), where d is the horizontal distance (in cm) from the central starting position, and t is...

*April 30, 2007*

**math**

Which three options are true about motion in a straight line. A. A particle which moves at an increasing velocity has a constant acceleration. B. If two particles always have the same velocity as each other, their separation does not change. C. A particle which has zero ...

*April 30, 2007*

**math**

The head of an industrial machine moves in a straight line horizontally backwards and forwards from a central position. The movement can be modelled using the sine wave d = 80 sin ( pie t), where d is the horizontal distance (in cm) from the central starting position, and t is...

*April 30, 2007*

**math**

Which three options are true about the quadratic equation?? y= 4t^2 + 16t + 18 A. The graph has a minimum. B. The graph of y crosses the horizontal axis at t = 10 and t = 20. C. The equation 4t^2 + 16 + 18 = 6 has one real solution. D. The function has a maximum at t = 10 E. ...

*April 30, 2007*

**math**

Which three options are true about the quadratic equation?? y= 4t^2 + 16t + 18 A. The graph has a minimum. B. The graph of y crosses the horizontal axis at t = 10 and t = 20. C. The equation 4t^2 + 16 + 18 = 6 has one real solution. D. The function has a maximum at t = 10 E. ...

*April 28, 2007*

**english**

In the sentence Rosie sang in the play about the Statue of Liberty. What would be the prepostional phrases. I need this before tomorrow and 8 o'clock tonight. Thank you for using the Jiskha Homework Help Forum. When in doubt as to a part of speech, any dictionary will tell...

*April 12, 2007*

**chemistry**

If there are 80 milligrams of a radioactive element decays to 10 milligrams in 30 minutes then what is the elements half life in minutes? Ok i narrowed it down to either 10 or 30...but im rly confused so if u could help it wuld be grea 80 40 1 min 20 2 min 10 3min looks like ...

*March 4, 2007*

**Chemistry**

For my homework the question is... What is the half life of polonium 214 if a 1 gram sample decays to 31.25mg after 820 seconds? Im not sure how you arrive at the answer, my friend says the answer is 5 but were not sure how to do it..thanks for any help u may have ln(No/N)= kt...

*March 4, 2007*

**Science**

A force of 100 newtons was necessary to lift a rock. A total of 150 joules of work was done. how far was the rock lifted? Work=force*distance. solve for distance in meters. plesa help me on my homework come on do it plesa plesa plesa is my last time

*March 3, 2007*

**Intro Accounting - HELP**

3. Dr. Colin Modella, an music history professor at the University of Arizona, supplements her income by selling cappuccino on campus to students and other faculty members when she is not teaching, doing research, creating curriculum, or attending committee meetings. She sells...

*February 21, 2007*

**Social Studies**

What is nunavuts nickname!!!

*February 8, 2007*

**English**

hi for my english project i have to draw a map of the war my character was in..My book was the things they carried so it was the vietnam war, i was wondering if you had any pictures of were the vietnam war was fought. The directions also say i need countries, cities and ...

*January 28, 2007*

**pre-algebra**

The perimeter of a triangle is 195 mm.If the lengths of the sides are consecutive odd integers,find the length of each side. what steps do i need to do in order to get the answre? Perimeter= L + L+2 + L+4 solve for L. That is the short side. THen add two for the next side, and...

*January 27, 2007*

**Linear Approximation**

Use linear approximation, i.e. the tangent line, to approximate 1/0.104 as follows: Let f(x)=1/x and find the equation of the tangent line to f(x) at a "nice" point near 0.104 . Then use this to approximate 1/0.104 . L(x)=f(a)+f'(a)(x-a)...i think. You're ...

*October 14, 2006*

**sociology/enviromental science**

Help me! Wow everyone on here from Axia UOP! Great The ETH 125 and SCI 275 are blowig my mind especially the SCI 275(enviromental) AGGGGGG Does anyone know how to do a risk assessment on Malathion????

*July 20, 2006*