Questions Asked on
February 18, 2008

Math
1. Explain the advantages and disadvantages of both the substitution method and the elimination method for solving a system. Help please. The only reasons I can think of is because in substitution it might be more difficult cause there's a possibility of
asked by Amanda 
Physics E&M
Three electrons form an equilateral triangle 1.00 nm on each side. A proton is at the center of the triangle.What is the potential energy of this group of charges?
asked by Spencer 
math: Calculus  Algebraic Vectors
A light plane is travelling at 175 km/h on a bearing of N8°E in a 40 km/h wind from N80°E. Determine the plane's ground velocity using algebraic vectors. The answer for this question is: 167 km/h , N5°W  My Work: (a , b) = (  r  *
asked by Anonymous 
Chemistry
To obtain the rate of the reaction 3I(aq) + H3AsO4(aq) + 2H+(aq) > I3(aq) + H3AsO3(aq) + H2O (l) I got that the rate is 1/3 delta [I]/ delta t = delta [H3AsO4]/ delta t is this correct
asked by Lauren 
Biology
In peas, tall plants (T) are dominant to short (t), purple (P) is dominant to white flower color (p), and round seeds (R) are dominant to wrinkled seeds (r). What is the phenotype of a plant with genotype TtppRr?
asked by Cathy 
Physics E&M
A proton and an alpha particle ( q= + 2e, m=4u ) are fired directly toward each other from far away, each with an initial speed of 0.01 c.What is their distance of closest approach, as measured between their centers?
asked by Spencer 
Chemistry
What is the molecularity of each of the following elementary reactions? A. O+O2+N2> O3+N2+ B. NO2Cl + Cl> NO2 + Cl2 C. Cl + H2 > HCl + H D. CS2> CS + S
asked by Lauren 
Chemistry
O3 + NO > O2 + NO2 (all in gas state) Calculate the change in enthalpy for the reaction at room temp. using the following data ^Hf: O3 = 143 NO = 90 NO2 = 33 So, I have 143+90> X + 33. I don't know what the enthalpy of O2 is. I assume you simply
asked by Anonymous 
chemistry
Answer the following for a body centered unit cell. type of packing type of holes # atoms / 1 unit cell coordination #
asked by Stacy 
Algebra(1 of 3)
Solve the matrix equation 2x + 5y = 1 x + 3y = 0 for y. A)1 B)3 C)3 D)1 I chose D 2x + 5y = 1 y = 5  2x x + 3(5  2x)= 0 x + 15  6x = 0 7x = 15 x = 15/7 I know that's wrong I don't know what to do
asked by Jon 
Physics
a ball of mass m is attached by two strings to a vertical rod (lower string is at a right angle to rod). the entire system rotates at a constant angular velocity w about the axis of the rod. A) assuming w is large enough to keep both strings taut, find the
asked by Sarah 
trig
tanx=cotx
asked by Joe 
Physics
A steady horizontal force F if magnitude 21N is apllied at the axle of a solid disk. the disk has mass 2.0kg and diameter of 0.10m. What is the linear speed of the center of the disk after it has moved 12m?
asked by Nick 
Chem
O3 + NO > O2 + NO2 Write the rate law equation for the reaction. Explain how you obtained your answer. Experiment 1: [O3] .0010 [NO] .0010 Rate of formation of NO2 x Experiment 2: [O3] .0010 [NO] .0020 Rate of formation of NO2 2x Experiment 3: [O3] .0020
asked by Anonymous 
chemistry
For the following: a)give the reaction type; b)complete and balance the reaction; c)using your answer to part b, determine how much of the other reactant is needed, and how much of each product will be formed, for the given starting amount (below); and d)
asked by stephen 
math
log(x+(3/10))+logx+1=0
asked by jen 
Chemistry
convert 175f to c convert 325f to k covnert 575 cal to J canvert 23 Cal to J
asked by lizzie 
math
I am lost. Question: Blake bought 21 books. The least he spent for a book was $18. The most he spent for a book was $25. What could be the amount that he ended up paying for his books? a.$375 b.$530 c. $175 d. $445
asked by Connie (g/ma) 
Physics
In designing a velocity selector that uses uniform perpendicular electric and magnetic fields, you want to select positive ions of charge +5e that are traveling perpendicular to the fields at 8.75 km/s. The magnetic field availabe to you has a magnitude of
asked by J 
Organic Chem
Why is Diels Alder reaction stereospecific?
asked by Delly 
math :] 2
Is 14/3 a rational number? I think so... but I'm confused because if you divide 14 by 3 then the decimal part is .66666666666666666666667. Is that considered a repeating decimal? If it is, then it's a rational number. I'm just doubting because of the 7 at
asked by LILY 
Algebra
Can you solve for a variable in an equation?
asked by greatdanelola 
AP Physics
A light string that is attached to a large block of mass 4m passes over a pulley with negligible rotational inertia and is wrapped around a vertical pole of radius r. The system is released from rest, and as the block descends the string unwinds and the
asked by Mary 
American Sign Language
What is a asl classifier for President? What is a asl classifier for woman? What is a asl classifier for letter? What is a asl classifer for brother?
asked by Mack 
Geometry
I have no idea how to solve this problem. The question says: Determine whether the points A(4,5), B(3,3), C(6,13) and D(6,2) are the vertices of a kite. Explain your answer. Can you please help me with the steps to solve it and understanding it.
asked by Avalon 
AP Physics
A light string that is attached to a large block of mass 4m passes over a pulley with negligible rotational inertia and is wrapped around a vertical pole of radius r. The system is released from rest, and as the block descends the string unwinds and the
asked by Mary 
chemistry
what is the major product of dehydration of an acohol?
asked by jazzy 
math
0.3x0.2y=0.5 x2y=5
asked by Artie 
Physics
a ball of mass m is attached by two strings to a vertical rod (lower string is at a right angle to rod). the entire system rotates at a constant angular velocity w about the axis of the rod. A) assuming w is large enough to keep both strings taut, find the
asked by Sarah 
College Calculus
What is the integral of cos^6x? I tried half angle identities but it didn't really help...
asked by Matt 
physics
Figure 831 shows a ball with mass m = 1.0 kg attached to the end of a thin rod with length L = 0.56 m and negligible mass. The other end of the rod is pivoted so that the ball can move in a vertical circle. (a) What initial speed must be given the ball so
asked by dawn 
Physics
How long would it take for a beam of light to travel around the earth in an ideal fiberoptic cable?
asked by Charles 
physics
A single conservative force F = (6.0x  11)i N, where x is in meters, acts on a particle moving along an x axis. The potential energy U associated with this force is assigned a value of 24 J at x = 0. (a) What is the maximum positive potential energy? At
asked by dawn 
chemistry
Answer the following for a body centered unit cell. edge in terms of r, the lattice pt radius face diagonal in terms of r, the lattice pt radius body diagonal in terms of r, the lattice pt radius
asked by Stacy 
chemistry
Answer the following for a face centered unit cell. r=6.0 edge in terms of r, the lattice pt radius face diagonal in terms of r, the lattice pt radius body diagonal in terms of r, the lattice pt radius
asked by Kacy 
Chem
For all three of the cubic lattices (unit cells), what two things are the same size?
asked by Kacy 
Algebra III
3^2x  6 x 3^x + 9 = 0 Solve for x I have no Idea what to do
asked by Matt Eaton 
chemistry
325*f to kelvin
asked by lizzie 
international business
4.Why is acceleration or delay of payments more useful to an IC than to smaller, separate companies? i was able to answer all but this question. i have read the material required but i don't quite get what they are asking?
asked by james 
Algebra(2 of 3)
The vertices of ABC are A(3,4),B(1,3),C(3,2). The triangle is rotated 90 degrees counterclockwise. Use the rotation matrix [0 1][1 0] to find the coordinates of C' A)(3,2) B)(4,3) C)(3,1) D)(2,3) I chose A [0 1] x [3 1 3][4 3 2] =
asked by Jon 
Chemistry
If you put together two liquids and they react, but don't necessarily give off heat, would that still be an exothermic reaction because they don't take outside energy to react with each other?
asked by Anonymous 
Grade 12 Biology
I am confused about this question, and can't find anything on the internet, anyone care to explain? Why is the tertiary structure of an enzyme, such as amylase, so important? An enzyme is a protein, so is it really asking why is this stage important? And
asked by MileyCyrus 
Physical Science
What is the total number of electrons in a normal atom of hydrogen?
asked by casey 
Algebra(3 of 3)
Simplify y^2 + y  20/y^2  2y  8 A)y  5/y  2 B)y + 5/y + 2 C)5/2 D)y  10/y  4 I chose A. I don't know how to do it.
asked by Jon 
PHYSICAL SCIENCE
A ROCK WITH A WEIGHT OF 156.8 NEWTONS FALLS 5 METERS. WHAT POTENTIAL ENERGY DOES IT HAVE JUST BEFORE THE END OF ITS FALL.
asked by GARY 
managerial economics
After two quarters of increasing levels of production, the CEO of Canadian Fabrication & Design was upset to learn that, during this time of expansion, productivity of the newly hired sheet metal workers declined with each new worker hired. Believing that
asked by jean 
managerial economics
Engineers at a national research laboratory built a prototype automobile that could be driven 180 miles on a single gallon of unleaded gasoline. They estimated that in mass production the car would cost $40,000 per unit to build. The engineers argued that
asked by jean 
managerial economics
After two quarters of increasing levels of production, the CEO of Canadian Fabrication & Design was upset to learn that, during this time of expansion, productivity of the newly hired sheet metal workers declined with each new worker hired. Believing that
asked by jean 
Chemistry
In a kinetic study of the reaction 2NO(g) + O2 > 2NO2(g) the following data were obtained fro the initial rates if disapperance of NO: Initial concentraition NO O2 Inital Rate NO exp 1. 0.0125M 0.0253M 0.0281 M/s exp 2. 0.0250M 0.0253M 0.0112 M/s exp 3.
asked by Lauren 
Chemistry
Iodide Ion is oxidized to hypoiodite ion IO by hypochlorite ion ClO in basic solution. The equation is I + ClO  IO + Cl Initial concentraition I ClO OH exp 1. 0.010 0.020 0.010 exp 2. 0.020 0.010 0.010 exp 3. 0.010 0.010 0.010 exp 4. 0.010
asked by Lauren 
Calc help!
Describe how you could approximately find the total number of particles in a rectangular box that is 2m x 2m x 3m by making no more than 12 samples.
asked by anonymous 
Chemistry
The decomposition of ozone is believed to occur in two steps O3 O2 + O O3 + O > 2O2 Identify any reaction intermediate. What is the overall reacion? I got O3 + O3 > O2 + 2O2
asked by Lauren 
Algebra
Simplify: (1+i)/(2i) A)(1/3)+(2/3i) B)(1/5)+(2/5i) C)(1/3)+(i) D)(1/5)+(3/5i) I have no clue
asked by Jon 
Chemistry
Write a rate equation showing the dependence of rate in reactant concentrations for each of the following elementary reactions. a. CS2> CS + S b. CH3Br + OH > CH3OH + Br A. k[CS2][S] B. k[CH3][Br][OH]
asked by Lauren 
Algebra
Solve 3x^28x+4=0 by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are located. A)2;between 0 and 1 B)between 0 and 1;between 7 and 8 C)1,2 D)between 0 and 1;between 3 and 4 I don't understand this one
asked by Jon 
Chemistry
The thermal decomposition of nitryl chloride NO2Cl, 2NO2Cl> 2NO2 + Cl2 is thought to occur by the mechanism shown in the following equations: NO2Cl> NO2+ Cl NO2Cl + Cl > No2+ Cl2 the rate is [NO2][Cl] is this right
asked by Lauren 
Chemistry
How do you determine the type and number of each type of element in H2SO4?
asked by AJ 
physics
Using the data below, suggest a proportionality statement. Length (cm) Frequency (Hz) 100 0.46 80 0.52 60 0.62 40 0.74 20 1.01 I think it's f ¡Ø 1/¡Ìlength (one over square root of length) or is it l ¡Ø 1/f^2 By the way, the length is the controlled
asked by william 
math :]
Is 14/3 a rational number or a irrational number?
asked by LILY 
Science
Would you expect the inversesquare law to always hold accurately for the stars in the sky? Explain.
asked by Mary 
Ethics
What are the goals of punishment and corrections? Explain the rationale behind those goals. How does the concept of community corrections relate to these goals and rationale?
asked by Kish 
Math
Are all linear equations functions. I'd say yes. Because both contain domain and range. But..not all are graphed linear. when is a linear equation not a function?
asked by James 
Chemistry
Dehydration of an alcohol has what major project? This is what I think, does this make sense to anyone? The major project of dehydration of an alcohol is that alcohol loses a water molecule. An H and OH are removed from the adjacent carbon atoms of the
asked by Amy 
music
music written polyphonically is called what?
asked by Barb 
Physics
a ball of mass m is attached by two strings to a vertical rod (lower string is at a right angle to rod). the entire system rotates at a constant angular velocity w about the axis of the rod. A) assuming w is large enough to keep both strings taut, find the
asked by Sarah 
please
someone please help with the physics question i asked a little bit ago, i'm desperate
asked by Sarah 
math
how do i multiply fractions with diffrent denomenators?
asked by andytrfmn 
English
Grandma said yes, we need more apple juice. Correct for capitalization and punctuation.
asked by Linds 
american history
what businesses came under the scrutiny of the sherman antitrust act in the 1800s?
asked by andrea 
math/probability
204 / 205  EXERCISES FOR SECTION 4.2 18 WHAT ARE EQUALY LIKELY OUTCOMES? 19 DESCRIBE THE DIFFERENCE BETWEEN AN IMPOSSIBLE EVENT AND A CERTAIN EVENT IN PROBABILITY. BE SURE TO PROVIDE EXAMPLES. 26 ALZHEIMER'S DISEASE. THE BAR GRAPH IN FIGURE 4.3 SHOWS
asked by nascha 
sewing/embroidery
the word to be unscrambled is dtervaiga
asked by Meo 
Nutrition
What are Avocados good for?
asked by Bailey 
Chemistry
I found the charges on all of the following atoms and found out that Mn was reduced and C was oxidized. CH3OH + MnO4 > Mn2+ + CH2O 2e/C 5e/Mn x 5 x 2 = 10 = 10 5CH3OH + 2MnO4 > Mn2+ + CH2O Can anyone help me balance the rest?
asked by Alex 
Chemistry
Does anyone know why amines show high solidility in water? Could my answer be: Amines exhibit high solubility in water because they form bonds with the water thanks to the hydorgen bonds, but large amines are not soluble in water since the effect of this
asked by Lisa 
Phsysical Education
need information on, if you have completed your degree from a university in Alabama, but decided to move to another state, what would you need to be able to teach in that state. Include everything you would need to teach in that state, degrees, exams,
asked by LW 
Math
Let's do this again: is 14/3 a rational number even though the calculator says .666666666667? Please answer all questions, thank you.
asked by LILY 
Physics
A small aircraft takes off and accelerates for 1 min at the rate of 1.5m/s^2. it then maintains a constant flying speed for 20mins after which it lowers its flaps, descends and reduces its speed uniformly, coming to rest in 45secs. Using a separate sheet
asked by Anonymous 
Criminal law
"self induced intoxication negates mens rea, hence no crime is committed" justify the statement.
asked by Timmy 
Physics
What do I have wrong in here? A stone is thrown vertically upward at a speed of 60.0m/s. a) How long after being thrown is it 175m above ground? So i did  d = V1t + 1/2at^2 175 = 60t + 1/2 (10)t^2 (rearranged and divided it all by 5) 0 = t^2 + 12t  35
asked by Anonymous 
biochemistry
show how to convert cyclohexanol to these compounds? a) cyclohexene b) cyclohexane c) cyclohexanone d) bromocyclohexane
asked by vaishu 
American History
I am writing a research paper on President Abraham Lincoln I have to describe reasons why he was such an influential leader. I need at least 34 main ideas to work with on this paper and so far I only came up with one..he ended slavery...any suggestions?
asked by Lily 
Biology
What does it mean when one says that viruses don't have homeostasis?
asked by Lisa 
Length and width
The width of a rectangle is 2ft less than its length. The area is 8ft^2. Find the length and width. I can't seem to come up with anything that equals 64 sq ft. Do I start with area 64sqft.=W x L2. I feel like I should be coming up with something around 7
asked by Marysvoice 
Probability
What is the probability of spinning a number greater than 5 OR less than 3 on this spinner? This problem has a picture of a spinner with 8 sections divided equally. The sections are labeled: 1,2,3,4,5,6,7,8.
asked by LiLY 
Math consecutive intigers
A student opens a math book to two consecutive pages with a sum of 1640. What are the two pages? I would need one odd number and one even. 819 and 820 are as close as I can come. What am I missing?
asked by Marysvoice 
12 Chemistry
I was just wondering if you could tell me what evidence there is that supports the statement: carboxylic acids are soluble in an aqueous solution. I have an answer all ready, and I have searched the internet, but I was just interested in a little
asked by FOR A SCIENCE TEACHER ONLY!!! 
Math
Find the Inverse Function: y=4xx^2
asked by Michael 
Physics  stuck
Car A has an initial speed of 15m/s and is gaining speed at 1.5m/s^2. Car B has an initial speed of 20m/s and is gaining speed at 2.0m/s^2. The initial distance between them is 168m. Find when and where the cars will pass one another and their speeds as
asked by Anonymous 
spanish
thank you so much, for helping my daughter unity, she is only 6 years old and is taking spanish classes.on that last unscramble word i did forget a letter! so its,encory,if you can help that will be great!OR i will try your method, and try to figure it out
asked by unity 
Algebra 1
Entomology is the scientific study of insects. Patty, Ronny and Sammy collected some insects for their science project. At the end of the first week of collecting, Patty and Ronny together had 89 insects, Ronny and Sammy together had 80 insects, and Patty
asked by Elizabeth 
Physics
A 97.0kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.70 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.80
asked by Zach 
science(chem) plastic hedache...can anyone help?
My hwk Q that I was trying to find the answer to yesterday is this below but I don't know exactly how the placticizing process works. I compiled the chemicals I think I need but other than that I'm stumped as to how to put them together or how. Q: A water
asked by ~christina~ 
12 Chemistry
So I forgot, but I have one more I want to check while I am here (I seriously have a need for perfection, and want to include all of the details I can :P). So, what evidence is there that the esters synthesized in the lab are soluble? Again, thank you so
asked by FOR A SCIENCE TEACHER ONLY!!! 
BIOLOGY
Why don't viruses grow and why don't they experience homeostasis? Thank you in advance!
asked by Janine 
Physics
What do I have wrong in here? A stone is thrown vertically upward at a speed of 60.0m/s. a) How long after being thrown is it 175m above ground? So i did  d = V1t + 1/2at^2 175 = 60t + 1/2 (10)t^2 (rearranged and divided it all by 5) 0 = t^2 + 12t  35
asked by Anonymous 
spanish
can you please help me unscramble these two spanish words? codraram,and coyenr. thanks!
asked by Eunice 
Social Studies
Where could i find out all about the Arawaks and Caribs?
asked by Jordan 
math
A circular coffee table has a diameter of 5 ft. What will it cost to have the top refinished if the company charges $3 per square foot for the refinishing?
asked by will 
math
An Aframe cabin has a triangular front with a base of 30 ft and a height of 20 ft. If the front is to be glass that costs $3 per square foot, what will the glass cost?
asked by will 
Biology
In horses, B = black coat, b = brown coat, T = trotter, and t = pacer. What genotype is a black trotter that has a brown pacer offspring?
asked by John 
prealgebra
How do you convert 3secs. into days?
asked by B 
chemistry
Why do amines exhibit high solubility in wate?
asked by luli 
people
who quoted this statement The NEW ENGLAND governments are in state of rebelion.
asked by dahalia 
Algebra
What is the difference between an equation and an expression?
asked by greatdanelola 
people
who quoted this statement The NEW ENGLAND governments are in state of rebelion.
asked by dahalia 
physical science
what are the uses of CaCo3+2HCl=CaCl2+CO2+H2O?
asked by Amanda Emler 
prealgebra
The problem really said convert 3 seconds into days. Then the next question was convert 2 inches into yards.
asked by B 
Health Care
Give an example of ineffective communication that resulted in bad customer service in the medical office and discuss strategies for overcoming perceived service issues.
asked by Anonymous 
Biology
What does it mean for a virus to have homeostasis? Does anyone know why viruses don't have homeostasis?
asked by Lisa....please answer, i've been searching for 3hr 
Language Arts PLEASE HELP
How do you do a word cited page? please help me so confused. Paper due tomorrow. Thank you
asked by Amy 
Analysis & Design
A milestone is a goal or objective and deliverables from the milestone are something like what will happen from the milestone? Am i correct?
asked by James 
math
2x3y=24 x+6y=18 substitution to solve system of equation. no sulution of infinitely many solutions
asked by Artie 
log
2.4^(3x+1)=9
asked by yaz 
Geometry
Letting L1=ax+by+c=0 and L2=px+qy+r=0. The equation of anyline passing through the intersection of L1 and L2 is L1+kL2=0 where k is a variable depending on just how the actual line through the point is. Can anyone prove this because all i get is 0=0.
asked by Supaman 
Math
How do I draw the following problem so I have something to refer to when answering a) and b)? A river is 2 km wide and flows at 6 km/h. A motor boat that has a speed of 20 km/h in still water heads out from one bank perpendicular to the current. A marina
asked by Anonymous 
Science
Suggest some uses for a plastic that disolves in water
asked by Radella 
7th Grade Math
What are two square roots of ten?
asked by Gina 
maths
ALL OF JENNYS PETS ARE DOGS EXCEPT ONHE. HOW MANY CATS AND DOGS DOES JENNY HAVE,
asked by GLORIA 
Chemistry
Based on the balance equation 2C6H14+19O2 gives 12CO2+14H2O calculate the moles of CO2 formed when G moles of H2O formed
asked by Anonymous 
chem
For a primitive cubic unit cell, r=6.0 what is the body diagonal in terms of r, the lattice pt radius
asked by jin 
biologymultiple choice question
In order to survive, all organisms must carry out: 1. autotrophic nutrition 2. heterotrophic nutrition 3. enzymecontrolled reactions 4. the process of locomotion Help??
asked by Nicci 
science
Sasha wants to find the resistance of the motor. She measured a 6 V drop across the motor that is in a series circuit with a 200 ohms reseistor. The power source is supplying 9 V to the circuit. How musch resistance is her motor putting into the circuit?
asked by Clover 
english
can someone help me to proofread my argument paragraph and to see whether this is a good argument paragraph or not? if not, please tell me what i need to do for the improvement. thanks The article, ¡§Why Cell Phone Use While Driving Should Be Banned¡¨
asked by jessie 
spanish
can you please help me unscramble these spanish words? zaironpr, teagmopne, codraram,and finally encoy.thank you.
asked by unity 
English
need to do a project on VICTORIA  and would like some examples of templates and setting it out etc. Can anyone help?
asked by Sabrina 
algebra 2
log50+log(x/2)=2
asked by yaz 
precalc
Hi. Can someone help me with this? Simplify: (sin^2x)(cos^2x)+(sin^4x) The answer is sin^2x, but I have no idea how to get there! Thanks!
asked by Andrea 
health ethics
when does personhood begins? and what is the criteria of a person
asked by Limuel 
math
when will a product be positive regardless of the number of factors? & when will a product be negative regardless of the number of factors?
asked by Athena 
MATHS
WRITE AS A DECIMAL THE FRACTION SIX,AND TWOHUNDRED AND FOURTY THREE THOUSANDS.
asked by MARYAM 
Math
A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum area that the farmer can enclose with 80ft of fence? 800 sq ft? What should the dimensions of the garden be to give this area? 40ft
asked by Marysvoice 
math
Kenisha sells athletic shoes parttime at a department stoe. She can earn either $500 per month plus a 4% commission on her total sales, or $400 per month plus a 5% commission on total sales. Write a system of equations to represent the situation.
asked by Artie 
Quadratic equations
How do I write my x intercepts as an ordered pair when my XIntercepts at X = { 2.64575, 2.64575 }?
asked by Marysvoice 
english/ help revise
Uganda, still, is in a desperate state of emergency. On the state level, the government of Uganda has failed to fulfill its responsibility to protect civilians from the massive human rights violation committed against them. Despite Uganda being a
asked by Christi 
substitution
Tickets to a movie cost $7.25 for adults and $5.50 for students. A group of friends purchased 8 tickets for $52.75. Write a system of equations to represent the situation. How many adult tickets and student tickets were purchased?
asked by Artie 
Math Algebra
This one showed up in the middle of my quadratic equations. There is no y or 0. What am I supposed to do with it? Give exact and approximate solutions to three decimal places. (x+5)^2=81
asked by Marysvoice 
english
revising danglers re write this sentence... By doing right all the time, your conscience will feel at ease.
asked by jane 
algebra 2
log72log(2x/3)=0
asked by yaz 
English
Why is emily dickinson referred to as Belle of Amherst
asked by Chelc 
biology
Describe the events that occur at the neuromuscular junction. (mechanism of action of neuromuscular junction)
asked by Anonymous 
Math Analysis
The solution of 5x>2x is?
asked by Becky 
algebra
(1/4)^2x=(1/2)^x
asked by yaz 
French Please Help!!!
Utilisez la forme correcte du verbe indique. Apres le match, nous parlons (parler) de nos activites du dimanche. Les parents de Sarah ne dejeunent (dejeuner) jamais au restaurant le dimanche. Le vendredi soir, mes amis et moi, nous dansons jusqu'a 2 heures
asked by Anna 
chemistry
How can you differentiate between the solid and the gas states at the molecular level?
asked by lizzie 
calculus  PLEASE HELP!
1. Describe how you could approximately find the total number of particles in a rectangular box that is 2m x 2m x 3m by making no more than 12 samples. 2. You know the following facts about a function f(x): The derivative of f(x) is 6x + 4. The integral of
asked by anonymous 
Dr.Bob => nylon question posted again.since nxt pg
new in bold (copied in normal text) 0.5g hex (1mol/116.21g)= 0.004302mol hex 0.5g adi (1mol/183.03g)= 0.002731mol adi Limiting: 0.002731mol adi(1mol nylon/1mol adi)(226.319g/1mol nylon6.6)= 0.61807 g Nylon Supposed to have theoretically: 0.61807g Nylon
asked by ~christina~ 
Math
A painter needs 3 days to paint the walls of a room. How long would it take him, working at the same rate, to paint a room that is twice as long, twice as wide and twice as high as the original room?
asked by Tyler 
English
hello, I have to write a research paper on a paticular author. I chose Mary Shelly since we just finsihed reading Frankenstein. I need to narrow down my topic to make it more specific. I don't know how to start. I want to somehow relate her life with
asked by Anonymous 
Chemistry
To obtain the rate of the reaction 3I(aq) + H3AsO4(aq) + 2H+(aq) > I3(aq) + H3AsO3(aq) + H2O (l) I got that the rate is 1/3 delta [I]/ delta t = delta [H3AsO4]/ delta t is this correct
asked by Lauren 
math
Kenisha sells athletic shoes parttime at a department store. She can earn either $500 per month plus a 4% commission on her total sales, or $400 per month plus a 5% commission on total sales. Write a system of equations to represent the situation. What is
asked by Artie 
math
x+14y=84 2x7y=7
asked by Artie