Questions Asked on
October 27, 2007

geometry
finish proof given ABCD is an isoceles trapezoid with AD parallel to BC; DE=DC prove ABED is a parallelogram
asked by fredrick 
Calculus
The cost (in dollars) of producing x units of a certain commodity is c(x)=5000+10x+0.05x^2 Find A=100 to x=105 so far i got yy/xx= C(105)C(100)/105105 i don't understand how it comes out to be 101.25/5 please help me
asked by THU 
Chemistry
what is the emission spectrum of the sun and what does this spectrum reveal about the types of elements in the sun?
asked by Alison 
algebra
At 3PM, two ships started sailing toward each other from ports which were 265 miles apart at average rates of 18 and 23 miles per hour. At what time were the ships still 60 miles apart? *Again, I;m having a real bad day; please walk me through this.*
asked by anonymous 
Physics
1.A 60.2 kg bungee jumper jumps from a bridge. She is tied to a 13.8 m long bungee cord and falls a total of 34.4 m. Calculate the spring constant k of the bungee cord. 2.Calculate the maximum acceleration experienced by the jumper. Im stuck on the first
asked by Britney 
cultural diversityreposted question
Iasked this question a couple of days ago and got several different opinions. Ms. Sue tried to point out to me why she thought the correct answer is (B); however,I think some read my text wrong. Would someone please,reread the question and reread what my
asked by Rose 
Algebra
Dylan has $2.30 in dimes and nickels. The dimes exceed nickels by 5. Find the# of each kind. let x= nickels= Let x+5= dimes= 2.3=(.05)x+(.10)x+5 2.3= .05x+.10x+5.1 2.3=.15x+5.1 2.8= .15x 18.666666666repeating=x what did i do wrong?
asked by anonymous 
Physics repost please clarify
A converging lens has a focal length of 0.060 m. An object is located 0.020 m to the left of this lens. A second converging lens has the same focal length as the first one and is located 0.100 m to the right of it. Relative to the second lens, where is the
asked by Mary 
physics
A 1.82 kg box moves back and forth on a horizontal frictionless surface between two different springs, as shown. The box is initially pressed against the stronger spring (k1 = 37.0 N/cm), compressing it 3.10 cm, and then is released from rest. By how much
asked by Megan 
algebra
The base of an isosceles triangle and one of its legs have lengths that have consecutive integers. The leg is longer than the base. The perimeter of the triangle is 20. Find the length of each side of the triangle. *Please help me I am having a really bad
asked by anonymous 
Physics
A 290 kg crate hangs from the end of a 14.0 m long rope. You pull horizontally with a varying force to move it a distance d = 4.9 m to the right. 1.What is the magnitude of the applied force F when the crate is at rest in its final position? 2.What is the
asked by Holley 
science
I'm doing a project on persistent pollutants and brominated flame retardants in particular. Can you suggest some good sites to look at for the effect on the ecosystem? I need to identify the source of, the effects on our environment, effects on a
asked by Alexander 
Chemistry  Solutions
Explain how ammonium chloride, NH4Cl, is able to dissolve in water. Dr.Bob where is the explanation?
asked by Dick Rogers 
Precalculus/Trigonometry
How can I write a polynomial equation for this problem and draw a labeled diagram? A developer wants to build homes on a rectangular plot of land 4 kilometers long and 3 kilometers wide. In this part of the city, regulations require a greenbelt of uniform
asked by Amanda 
English
Identify the subject, verb , direct object, indirect object , object complement, in the sentence. People call Philadelphia " the city of brotherly love'.
asked by Babygurl 
Social Studies
What kind of attitude did Mother Jones have? I mean how did she speak?? Like, i know she was excited, and loud,but i cant find anything about the way she talked, or copies of her speeches Thanks
asked by Anonymous 
Algerba
Pick a country of your choice that is experiencing population growth. find the most recent population count of the country you have chosen and the population growth rate of that country. Use that growth rate to approximate the population in the year 2008.
asked by Vision/Help 
Physics/Excell
I have to do a chart with the following information but I cant get the chart to come out right does anyone know how. Im using a scattered xy chart. Information: Trail x units y units k=y/x 1. .041 A 4.0 V 2. .083 A 8.2 V 3. .127 A 12.3 V 4. .162 A 16.0 V
asked by Dana 
algebra
At 9AM, two cars started from the same town and traveled north on the same road. One car averaged 45 miles per hour, and the other car averaged 40 miles per hour. In how many hours were the cars 30 miles apart?
asked by anonymous 
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
asked by greg 
Algebra Absolute Value
2/3(x6) = 12
asked by Matthew 
math help
1. Michelle reads 1,200 words in 7 minutes, and Tricia reads 700 words in 3 minutes. Who is the faster reader? 2.Find the unit price for the item: $6.96 for a dozen pears.
asked by lynn 
Algebra II
Can a matrix have a two digit number? I have to add the matrices[3 4] +[2 7] [7 6] +[3 8] Sorry this is the only way I know haw to put matrices on the board.
asked by JaneLee 
Calculus Bonus
Form two fourdigit numbers from the digits 2, 3, 4, 5, 6, 7, 8, and 9, using each digit exactly once, so that the absolute value of the difference of the two numbers is as small as possible. I don't know where to start, any help would be greatly
asked by Matt 
mrs sue
the text says based on an unreasoanble determination of facts in evidence by jury
asked by bella 
Physics
Would someone please check my answers? thanks During a lie detector test, a voltage of 6 V is impressed across two fingers. When a certain question is asked, the resistance between the fingers drops from 400,000 ohms to 200,000 ohms. What is the current
asked by Britney 
drying agent in chem
Is it advisable or not to leave a solution in drying agent for a few days? ~I did this ..since my chem lab instructor said to but I'm not sure I believe him. He sounded unsure of himself when he answered me. solution: methylene chloride (extracting oil of
asked by ~christina~ 
history
how many persons are on a grand jury?
asked by bella 
Physics
A 290 kg crate hangs from the end of a 14.0 m long rope. You pull horizontally with a varying force to move it a distance d = 4.9 m to the right. 1.What is the magnitude of the applied force F when the crate is at rest in its final position? 2.What is the
asked by Holley 
Physics
1.when a train pulls a wagon, is the work zero because wagon pulls on the train with equal opposite force(newton's third law)? 2.what is negative net work and when it is done an on object, does it reduce objects kinetic energy? 3.if the work done on an
asked by Casey 
Social Studies
Hey, I'm trying to find a leader that shows the following characteristics;generosity, respect, passion in fighting against racism, strong will and being able to voice their opinions.
asked by Samantha 
Need Preperation Help
I have a test on Hamlet soon and I'm just wondering if anyone know sites that have testlike questions? (not multiple choices from those study guide sites, I'd like short answer questions and essay questions)
asked by Anonymous 
Science
What is the current in the 30ohm heating coil of a coffee maker that operates on a 120volt circuit? Would be 120/30?
asked by Yumi 
algebra
102x=18
asked by Matthew 
history
I have been searching for over an hour  please help what is the difference between capital crime and an infamous crime
asked by bella 
Physics
A crate (weight 381 N) is lowered vertically a distance of 3.0 m by two ropes at a constant speed of 1.2 m/s. The tension in rope A is TA = 248 N; the rope makes an angle of ƒÆA = 63‹ with the horizontal. Rope B makes an angle of ƒÆB = 55‹ with
asked by Monica 
Algebra2
The cable company has two plans: Plan 1 Flat fee of $45 a month Plan 2 $15 a month plus 45 cents per minute What two equations would you use to graph the two plans? After how many minutes does it not make a difference which plan you use?
asked by Audrey 
Physics
The cable of an elevator of mass M = 1020 kg snaps when the elevator is at rest at one of the floors of a skyscraper. At this point the elevator is a distance d = 18.4 m above a cushioning spring whose spring constant is k = 6500 N/m. A safety device
asked by Elle 
history
I searched under the sites you sent me thanks but i cant find this one  what does constituion say about location of trial.
asked by bella 
history
in all cases of criminal proseuction, the accused shall have the right to a speedy trial. What does the consitution say about the location of the trial.
asked by bella 
Physics
The cable of an elevator of mass M = 1020 kg snaps when the elevator is at rest at one of the floors of a skyscraper. At this point the elevator is a distance d = 18.4 m above a cushioning spring whose spring constant is k = 6500 N/m. A safety device
asked by Elle 
math
In my hand, I have two United States Coins whose totatl value is 55 cents. However, one of the coins is not a nickel.
asked by Alyssa 
Physics
Could someone tell me how to start to solve this? Please How much current flows in a 1000ohm resistor when 1.5 volts are impressed across it?
asked by Sheila 
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
asked by greg 
cultural diversityreposted question
Which scenario best describes a nuclear family? A) Jeremiah is growing up within a cluster of adults and children who maintain their own living quarters but come together for work and meals. Childrearing is a shared responsibility B) The Farrish family is
asked by Rose 
essay question
i'm doing an argumentative essay about how hazing for fraternities is dangerous. do sororities have hazing too or is it only fraternities/
asked by julie 
Early Child Ed.
Would this example be representative of a democratic parenting style? A mother's eventual submission to her young child's repeated requests for the toy matchbox in the hobby shop.
asked by Brenda 
history
The decision of a jury shall be final excpet for: is this correct 1. unrx determination of facts in evidence 2. unrx application of est fed law determined by supreme ct
asked by bella 
Algebra II
15=63/4p+9/ the parenthesis mean absolute value
asked by Taylor 
to mrs sue
un reasonable
asked by bella 
AP World History
How did Roman military orientation and success in war with Carthage contribute to the instability of Roman politics?
asked by Taylor 
FRENCH
Could someone please proofread this? You know, point out or correct the mistakes and tell me what I did wrong? Thanks! Il était une fois, dans une contrée bien loin d’ici, un petit enfant qui s'appelait Markey et qui avait un petit singe très mignon
asked by Jo 
science
how do pesticides affect fertilisers herbicides in a food web? help!
asked by leah 
English expression
1. He did his presentation in the period. 2. He did two presentations this week in front of other coworkers. 3. I had to pay some amount of service money for using the ATM. 4. In a bank we can join a fund product. ===================================== Are
asked by John 
English Composition
1. You should save the video files at the computer. 2. We can videotape up to around 9 hours with the highest quality with the camcorder. 3. We are going to stay at a home for homestaying. 4. We'll leave Korea on Wednesday, January 23rd, 2007.
asked by John 
Business Studies
HI I'm in year 10 and I would like to have some websites on business Studies to revise for a test on Monday Especailly on the topic of Sectors of Economy thnnx
asked by Boy 
Physics
Can anyone help? the resistance of the side lights on an automobile are 10 ohms. How much current flows in them when connected to 12 volts
asked by alex 
Physics
Is the answer to this 4? If the filament resistance in an automobile headlamp is 3 ohms, how many amps does it draw when connected to a 12volt battery?
asked by Andrea 
science
Any advice on how to figure out solubillty of Agno3?
asked by julia 
science
does a metal mass change when it's heated
asked by wayne 
Earth Science
Differentiate the composition and texture of a plutonic igneous rock and a volcanic igneous rock.
asked by Camron 
Math
Cameron spent $13.50 at a pet store buying fish for his aquarium. He bought a bag of 14 fish that contained a combination of guppies and goldfish. Goldfish cost $1.65 a piece and guppies cost $0.45 a piece. How many of each type of fish did Cameron buy?
asked by Celena 
Psychology
Rub your index fingers gently over a piece of very coarse sandpaper a few times and rate its coarseness on a scale from 1 (very soft) to 7 (very coarse). After a minute or two, rub the same finger over the paper and again rate its coarseness. Did your
asked by JERYL 
history
Is this correct: job of grand jury  to provide an unbiased decision if there is enough eveidence to hold the person over for trial.
asked by bella 
history
what is the difference between a true bill nad no bill
asked by bella 
Social Studies
I have to do a 1 minute speech on my accomplishments pretending to be Mother Jones. I have all of my information, but need a good opening and closing sentence. Also, does anybody have ideas for a costume. i don't really have any big puffy dresses.
asked by Anonymous