Tuesday

October 25, 2016
Total # Posts: 467

**Physics **

Define the focal length of a convex mirror?

*December 14, 2010*

**Math**

x+2=6 and its under a square root thing

*December 11, 2010*

**Math**

3x-6y=12 find the slope, y intercept and general equation

*December 11, 2010*

**Math**

solve using addition or subtration 12x+9y= 14 6x= 7y - 16

*December 11, 2010*

**math**

Mrs.penn has a circular tablecloth with a circumference of 29 feet. Which expression could be used ro find the radius of the tablecloth? f. 29 - 2 pie g. 29/2 pie h. 29/pie j 29 + 2pie

*December 6, 2010*

**Chemistry**

the idea expressed in whims is known as

*December 3, 2010*

**science**

chief or ruler .

*November 30, 2010*

**5th grade**

what is the smallest number of pencils that are needed to put into jars holding 3,6 and 9 leaving no remainder.

*November 23, 2010*

**precal**

the terminal side of an angle in standard position coincides with the line y=x in quadrant I. find tan to the nearest thousandth

*November 17, 2010*

**Math**

if four friends share equally a 48 ounch bag of popcorn what fraction would each one get?

*November 8, 2010*

**algebra**

x/14+12=3x-8.5

*November 4, 2010*

**algebra**

x/14+12=3x-8.5

*November 4, 2010*

**Algebra**

x/14+12=3x-8.5

*November 4, 2010*

**Math**

Find a number whose square root is 24 more than 5 times the number. How do I set up this problem? Thank you for any help!

*October 23, 2010*

**algebra I**

Find a number whose square root is 24 more than 5 times the number. How do I set up this problem?

*October 23, 2010*

**AP CHEM**

HIO3 + FeI2 + HCl --> FeCl3 + ICl (in acidic solution) Show and label the two balanced half-reactions (oxidation and reduction). Add H2Os, H+s or OH-s as needed.

*October 23, 2010*

**Physics**

What force is required to accelerate an object of 1.484x10^0 kg over a frictionless surface at -2.3580x10^0 m/s2 expressed to three significant figures.

*October 22, 2010*

**Chemistry**

921.4919096 g/mol does this look to be right? or 1 grams 850.49 NF3 is equal to 0.00108519672238 mole does this look better?

*October 22, 2010*

**Chemistry**

How many moles of NF3 are in 850.49 grams of nitrogen triflouride

*October 22, 2010*

**Chemistry**

ok so C = 19x 12.01 = 228.19 H = 97 x 1.001 = 97.097 Cl = 35 x 35.45 = 1240.75 =1566.037 g/mol is this look ok

*October 22, 2010*

**Physics**

A motorcycle with an initial velocity of 7.99x10^0 m/s accelerates for a total of 3.3x10^0 seconds at a rate of 1.51x10^0 m/s2. What is it's velocity, to two significant figures? can anyone show the calculations for this

*October 13, 2010*

**Physics**

For a standard production car, the record for road test acceleration goes to the 1993 Ford RS200 Evolution. This car went from 0 to 2.911x10^1 m/s in 3.279x10^0 seconds. What is the average acceleration, expressed to 3 significant figures?

*October 13, 2010*

**AP Chem**

A student chemist named Hannah Montana set up an electrical conductivity tester similar to that shown on page 141 and conducted an experiment involving two clear, colorless liquids, identified as solution A and solution B. Solution A and Solution B are both 0.050 M. The ...

*October 11, 2010*

**Geography**

How do the shores of Long Island differ from each other. The South Shore and he North Shore

*October 6, 2010*

**social studies**

does anyone know the 4 prehistoric indian groups that lived in indiana?

*October 5, 2010*

**math**

This is dylan i am just learning square root i need this awnser for my homework which is do tommorow so please write the awnser back to me thanx every1 and please check your awnser before ypu post it.Thanx Every1.

*September 23, 2010*

**math**

Each ostrich needs a pen about 20 feet by 10 feet.How many square feet of space will be needed by 11 ostriches.

*September 23, 2010*

**5th grade math**

In the zoo there is penguins and polar bears 120 people visted both of them but only 75 people to photograghs how many people bought souvenior photographs please multiply

*September 21, 2010*

**geography**

What does Pig ears stand for?

*September 21, 2010*

**geometry**

X would be 17.5, as long as the answer isn't required to be a whole number.

*September 20, 2010*

**physics**

need answer fast- running out of time

*September 7, 2010*

**physics**

A truck is stopped at a stoplight. When the light turns green, it accelerates at 2.7 m/s2. At the same instant, a car passes the truck going 18 m/s. Where and when does the truck catch up with the car?

*September 7, 2010*

**Science**

The portion of the nervous system that controls involuntary activities is a subdivision of the ____ nervous system. A. sympathetic B. central C. peripheral D. parasympathetic I think it's either B or C right?

*September 1, 2010*

**Science**

What process describes how a signal travels from one end of a neuron to the other end? A. Hormonal regulation B. Muscle coordination C. Membrane excitability D. Neurotransmitter release I'm pretty sure the answer is C but just want to be positive.

*September 1, 2010*

**medicine**

A patient was experiencing indigestion almost every day. The physician performed an upper GI series, also known as a ____ test. a) bronchographic b) barium enema c) cholangiographic d) barium swallow I've been searching for hours and cant find the answer. Please help!!!

*August 6, 2010*

**How Children learn**

19. C 20. A

*May 13, 2010*

**math HELP **

ur such a homo. oh and your mom wanted to join

*May 6, 2010*

**math HELP **

why don't u want to join

*May 6, 2010*

**8th grade**

thanks wanna join

*May 5, 2010*

**8th grade**

what is a historical fact about independent and dependent events. im having so much trouble finding this answer on the enternet. HELP! thanks

*May 5, 2010*

**trigonometric**

ya drwls is right haha

*May 5, 2010*

**math #2**

Look at the pattern of shaded numbers. use place value to describe how the number change. 501 is shaded,502,503,504,505,506,507,508,509,510,511,512,513 is shaded,514,515,516,517,518,519,520,521,522,523,524,525 is shaded,526,527,528,529,530,531,532,533,534,535,536,537 is shaded...

*April 26, 2010*

**math**

Look at the pattern of shaded numbers. use place value to describe how the number change. 501,502,503,504,505,506,507,508,509 is shaded,510,511,512,513,514,515,516,517 is shaded, 518,519,520,521,523,524,525 is shaded,526,527,528,529,530,531,532,533 is shaded,534,535,536,537,...

*April 26, 2010*

**math**

Look at the pattern of shaded numbers. use place value to describe how the number change.

*April 26, 2010*

**8th grade chemistry**

the answer is c :)

*April 21, 2010*

**Math**

A vase had 4 yellow flowers, 4 red flowers and 8 blue flowers. Donna takes one out, smells it and returns it to the vase. What is the probabilty she picked a red flower? What is the probabilty she picked a blue flower? Is it red 4:16 and blue 8:16?

*April 15, 2010*

**Math**

A die is rolled once. What is the probability of getting number 5?

*April 15, 2010*

**Math**

change the equation 2x+5y=8 into the form of y=ax+b and then substitute for the value of X by ( 0 , 1 , 2 , 3 ) 3 points are enought and line them on a graph.. Note : the second equation has the same way!

*April 13, 2010*

**math**

seven thousands five hundred fourty two.. THATS IT!

*April 12, 2010*

**Math**

Its is (2x+5)^2... Thats the correct Factorized answer

*April 12, 2010*

**Math**

Developed form : x^2 -1/2x -7x -7.5 : x^2 -7.5x -7.5

*April 12, 2010*

**math**

Ok now that makes more sense to me. i must have typed it wrong. thank you.

*March 28, 2010*

**math**

It would be more of a drop. But i still done get the formula. did i do the formula right in the first place?

*March 28, 2010*

**math**

Would a drop of 40 Celsius degrees be more or less than a drop of 40 fahrenheit degrees? explain why C = 5/9 (F - 32)40-32=8c F = 9/5 C + 32 40+32=86f

*March 28, 2010*

**6th Grade Grammar**

Its A

*March 17, 2010*

**6th Grade Grammar**

Present Perfect

*March 17, 2010*

**4th grade**

I have a rectangle equally divided into 24 parts I must cut it into 5 pieces and make a new shape. cannot bea rectangle

*March 9, 2010*

**preschool**

wow teach him to talk

*January 30, 2010*

**math**

Calculate the area of each composite figure.round to the nearest square unit, if necessary. a)15mm, 8mm, 10mm 30mm

*January 26, 2010*

**math**

The slopes of the two lines are given. Conclude whether the lines are parallel, perpendicular, or neither. a)m=2/3,m=4/6 b)m=3/4,m=-4/3 c)m=2,m=-2 d)m=1,m=-1 e)m=1/5,m=0.2 f)m=2 1/4, m=-4/9

*January 24, 2010*

**math**

The equation 9c-5f+160=0 describes the relationship between temperature, C, in degrees Celsius, and temperature, F, in degrees Fahrenheit. b)graph this relation.

*January 24, 2010*

**12th grade**

What is answer to 2/3 to second power and how do I calculate

*January 12, 2010*

**Chemistry**

does BaCl2+Pb(NO3)2 form a percipitate

*December 27, 2009*

**math**

what is the slope-intercept of:y=x-1

*November 17, 2009*

**Pre Calculus**

see... (- sin pi/12 + pi)/(sin (25 pi)/12 + pi) this becomes (sin pi/12 + pi)/(-sin (25 pi)/12 + pi) finish it off and you get negative one... why is sin(-20)/cos(380) equal to tan(-200) I don't understand

*November 15, 2009*

**Pre Calculus**

ok I appologize for my stupidity... I'll answer your question... ok instructions to this problem In problems 77-88, use properties of the trigonmetric functions to find the exact value of each expression. Do not use a calculator 85. sin(-pi/12)csc( (25 pi)/12 ) book dosen...

*November 15, 2009*

**pre-algebra**

didn't get a clear answer, i do not understand how to find the answer to this problem:2y=2x+10

*November 13, 2009*

**algebra**

how do you find the slope-intercept of a line?

*November 13, 2009*

**math**

Three authors team up to write a childrens book. The publisher pays them according to the following contracts Author - Fixed Rate - Royalty Patricia $3000 - 1n Stephan - $1500 - 2n Harlan - $1000 - 3n Find a simplified expression that represents the total that the publisher ...

*October 27, 2009*

**math**

Three authors team up to write a childrens book. The publisher pays them according to the following contracts Author - Fixed Rate - Royalty Patricia $3000 - 1n Stephan - $1500 - 2n Harlan - $1000 - 3n Find a simplified expression that represents the total that the publisher ...

*October 27, 2009*

**Math**

Histogram, with data hours of sleep per night at 5 to 11 hours and scores from a quiz starting at 38 points to 92 points, how would that look?

*October 4, 2009*

**government**

is there a culture where they swore and had a sense to not get addicted to somthing

*September 24, 2009*

**Chemistry**

how do i know the specific heat?

*September 23, 2009*

**Chemistry**

I have a few problems im having trouble with, any help..? 1. If a peice of aluminum with mass 3.90g and a temperature of 99.3C is dropped into 10.0cm^3 of water at 22.6C, what will be the final temperature of the system? 2. If a peice of cadmium with a mass 65.6g and a temp. ...

*September 23, 2009*

**math**

the largest multiplication combonation for 180

*August 31, 2009*

**animals**

2. Out of these 5 animals, The animal that must eat most frequently to meet its energy needs is a. raccoon b. frog c. snake d. worm e. grasshopper

*August 31, 2009*

**5th Grade Math**

64

*August 29, 2009*

**grade 8 french**

Veni

*June 18, 2009*

**english 12**

if you have found an asnwer please let me know also because im doing the exact same work, ENG4C except im doing lessons and this is lesson 14

*June 9, 2009*

**Algebra 2**

How do I do this f(x) = x - 5 (x + 4)^(1/2) when f(x) = -5 I know I can just guess and chekc but I want to know how to do this algebraically by subsituting in -5 and trying to solve for x which I don't know how to do... so -5 = x - 3 (x + 4)^(1/2) how do I solve for x?? ...

*May 26, 2009*

**Algebra 2**

I apologize for doulbe post forgive me

*May 26, 2009*

**Algebra 2**

Helllo I have no idea how to do this problem given f(x) = x-3(x + 4)^(1/2) how to solve for x when f(x) = -5 I know I could just guess and check but I would like to know how to do this algebraically by pluging in -5 like so -5 = x - 3 (x + 4)^(1/2) and solving for x which I ...

*May 26, 2009*

**Algebra 2**

How do I answer this f(x) = x - 3 (x + 4)^(1/2) and am asked how to solve for x when y = -5 I have no idea how to do this and know that I could just solve it by guess and checking but I want to know how to do this algebraically when plugging in the -5 and trying to solve for x...

*May 26, 2009*

**Algebra 2**

I know that were doing problems were there is a soultion given which is equal to X^? times a constant ... y = k x^? So this is problem I have to decide given a probelm x relationship to y (for example iverse square cube and so forth) this unkown variable is denoted witha (?) ...

*May 20, 2009*

**math**

draw a zig zab line on the y axis between the 0 and 40 and you can like so \ / \ / \ except smaller of course and tighter and between the two numbers

*May 20, 2009*

**8th grade**

how do diagram a sententce

*May 3, 2009*

**2nd grade**

what is an 8th of an inch?

*March 30, 2009*

**literary**

What are "styles" in literature?

*March 28, 2009*

**life science**

i have to write a essay on the human reverse life cycle. i know i have to start with a introduction. i need to know how to start the introduction.can you help me to start my human reverse life cycle introduction?

*March 2, 2009*

**8th grade**

i need three traits of Spitz from call of the wild by jack london.

*February 3, 2009*

**Math**

The diameter of Earth is about 8,000 mi. Suppose a jet is traveling around Earth at an altitude of 30,000 ft. How many miles will the jet travel in a complete circle aroung Earth? a. 94,247.8 mi. b. 25,156.7 mi. c. 38,000 mi. d. 8,005.7 mi.

*January 11, 2009*

**English**

Thanks. very much appreciated. I wrote it and gave it up.

*January 8, 2009*

**English**

Write a short essay on the aspects of Michael Longley’s poems (their content and/or style) that you found most interesting. Support your discussion by reference to or quotation from the poems you have studied.

*January 8, 2009*

**math**

Itstheendofthelion

*December 7, 2008*

**Ok U CAN READ NOw**

my response is in first message and the question is the fourth one that i'm suppose to answer

*November 17, 2008*

**Ap World History**

Using the documents, compare and contrast the attitudes of Christianity and Islam toward merchants and trade from the religous' origins until about 1500. Are there indications of change over time in either case, or both? What kinds of additional documents would you need to...

*November 17, 2008*

**Ap World History**

Document six Source: Letters to and from Italian merchants in the fourteenth-century. A. Letter ordering religious paintings for sale. A panel of Our Lady on a background of fine gold with two doors, making a fine show wtih good and handsome figures by the best painter. Let ...

*November 17, 2008*

**Ap World History**

hopefully some body can tell me what they think and grade it using the rubrick thingy for ap world history rubric for a DBQ if i need to write in here because u don't have it i would be surprised but never the less would still do it next documents i'll write them

*November 17, 2008*

**Science**

What happens when you combine lemon juice and ammonia?

*November 13, 2008*