Questions Asked on
May 6, 2010

college physics
If the amplitude of a sound wave is tripled, A.) by what factor will the intensity increase? B.) by how many dB will the sound level increase?
asked by A 
Algebra 2 with trigonometry
A baseball diamond is a square 90 feet on a side. The pitcher's mound is 60.5 feet from home. How far does the pitcher have to run to cover first? (we are using the LAW OF SINES AND COSINES)
asked by T 
math
double my tens digit to get my ones digit. double me and i am less than 50
asked by Anonymous 
Chemistry
Consider the reaction 2Al + 3CuSO4 = Al2(SO4)3 + 3Cu What is the maximum amount of Cu (63.5 g/mol) that could be produced by reacting 20.0 grams of Al (27.0 g/mol) with excess CuSO4? 1. 70.6 g 2. 57.2 g 3. 129 g 4. 31.4 g I don't understand how to set it
asked by Annalie 
Chemistry
I need to know if I am anywhere in solving this problem: Please tell me if this is correct. The pH of a solution: 0.20 M CH3COOH and 0.10 M CH3COONa pH=pKa+log{[CH3COONa]/[CH3COOH]} pH= log(1.8x105)+log{0.10/0.20} pH= 4.74+log 0.50= 4.740.30= 4.44
asked by curtis 
math
A golf ball is hit off the ground at an angle of pie/6 and it travels 400 ft. How long was the golf ball in the air?
asked by Nancy 
English
Do you mind if I open the window? 1. No way! 2. Not in a million years. 3. Not at all. 4. Abosolutely not. (Ae all the answers correct? Why do you use the #2 answer? Would you explain it in detail?)
asked by rfvv 
physics
A 0.0150m wire oriented horizontally between the poles of an electromagnet carries a direct current of 9.5 A. The angle between the direction of the current and that of the magnetic field is 25.0° as shown. If the magnetic field strength is 0.845 T, what
asked by lakhvir 
Physics hard...
Young's Modulus (Y) 20 X 1010 N/m2 Shear Modulus (S) 8.1 X 1010 N/m2 Bulk Modulus (B) 16 X 1010 N/m2 The table to the above represents various properties of steel. You have steel wire 4.9 meters in length that stretches 0.16 cm when subjected to a force of
asked by richard 
chemistry
when aqueous solutions of copper II nitrate and sodium phosphate are mixed, sodium nitrate and copper II phosphate are formed. In the balanced chemical equation what is the coefficient of sodium nitrate?
asked by grace 
dago
how much heat is needed to change 20g mercury at 20c into mercury vapor at the boiling point
asked by charlo 
College Physics
A 50 dB sound wave strikes an eardrum whose area is 5.0 x 10^5 m^2. A.)How much energy is absorbed by the eardrum per second? B.) At this rate, how long would it take your eardrum to receive a total energy of 1.0 Joule?
asked by L 
Chemistry
Find the molar solubility of silver sulfide Ag2S. Ksp is 6.0 x 10^51. I get 1.1 x 10617. Right?
asked by Jim 
accounting
Ken is 63 years old and unmarried. He retired at age 55 when he sold his business, Though Ken is retired, he is still very active. Ken reported the following financial information this year. Assume Ken’s modified adjusted gross income for purposes of the
asked by Moncha 
Vectors
Adam can swin at a rate of 2km/h in still water. At what angle to the bank of a river must he head if he wants to swim directly across the rivver and the current in the river moves at the rate of 1 km/h?
asked by Meg 
College physics
To what temperature will 7700 J of heat raise 3.0 kg of water that is initially at 10.0 degrees C?
asked by S 
chemistry
Calculate the pH of a solution prepared by mixing 25.0 mL of 0.60 M HC2H3O2 and 15.0 mL of 0.60 M NaOH?
asked by Julie 
chemistry
Why is it necessary to wait until the filter paper containing a compound is completely dry before weighing it? and how would it effect the theoretical yield? HIgher?? lower??
asked by grace 
Chemistry; Stoichiometry
Consider the reaction 2Al + 3CuSO4 = Al2(SO4)3 + 3Cu What is the maximum amount of Cu (63.5 g/mol) that could be produced by reacting 20.0 grams of Al (27.0 g/mol) with excess CuSO4? 1. 70.6 g 2. 57.2 g 3. 129 g 4. 31.4 g Consider the reaction 4As + 3O2 =
asked by Annalie 
Two Loudspeakers in a open field Pjysics
Imagine you are in an open field where two loudspeakers are set up and connected to the same amplifier so that they emit sound waves in phase at 688 Hz. Take the speed of sound in air to be 344 m/s. If you are 3.00m from speaker A directly to your right
asked by Mikhail Moskvich 
chemistry
Calculate the pH of a solution prepared by mixing 25.0 mL of 0.60 M HC2H3O2 and 15.0 mL of 0.60 M NaC2H3O2?
asked by Julie 
Physics hard... can't get it right
A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L and is filled to a pressure of 200 atm at 273 K. The maximum pressure the cylinder can hold is 1000 atm. The molar mass of
asked by richard 
math
the practice range at a golf course charges $4.00 for a bucket of 40 golf balls.At this rate,how much will a bucket of 100 golf balls cost?
asked by brea 
algebra1
The sears tower in Chicago is 1,454 feet high. suppose you take a sheet of paper and fold it once in half, than fold it in half again,and keep folding it over and over again. How many times would you have to fold it to create a piece of paper that is
asked by madison 
social studies
How can a sociologist genuinely maintain value neutrality while studying a group that he/she finds repugnant?(for example, a White supremacist org, a satanic cult, a group of convicted rapists)
asked by Pham 
Chemistry Lab
Provide the correct coefficients to balance the following equation: ___ Fe(NH4)2(SO4)2·6H2O + ___ H2C2O4 + ___ K2C2O4 + ___ H2O2 > ___ K2Fe(C2O4)3·3H2O + ___ (NH4)2SO4 + ___ H2SO4 + ___ H2O I'm usually okay when it comes to balancing equations but
asked by anonymous 
distillation
what is the purpose of adding packing material to the distillation column? what is the purpose of insulating the distillation column?
asked by rachel 
Economics
A two product monopolist faces the demand and cost functions as below: Q1=402(P1)(P2) Q2=35(P1)(P2) C=(Q1)^2+2(Q2)^2+10 a) Find the profit maximizing levels of output and the price charged for each product.
asked by Anonymous 
physics
A cylinder of compressed Oxygen is carried on a spacecraft headed for Mars. The compressed gas cylinder has a volume of 10,000 L and is filled to a pressure of 200 atm at 273 K. The maximum pressure the cylinder can hold is 1000 atm. The molar mass of
asked by richard 
accounting
Assuming Alexa receives $20,000 in gross rental receipts, answer the following questions: a. What effect does the rental activity have on her AGI for the year? b. Assuming that Alexa’s AGI from other sources is $90,000, what effect does the rental
asked by Ramona 
chemistry
hydrogen and oxygen gas combine explosively to produce water. write a blanced equation for this process. if 10 mol of hydrogen reacted with oxygen, what volume of liquid water could be produced?
asked by Sammy 
math 2nd grade
Need to find the rule for the following letters: AEFHIKLMN BCDGJOP
asked by Tara 
Algebra
23. The ___ axis represents the independent variable. X? 21. Name the set(s) of numbers to which 1.68 belongs. a. rational numbers b. natural numbers, whole numbers, integers, rational numbers c. rational numbers, irrational numbers d. none of the above
asked by y912f 
Chemistry
A solution of ethanol (C2H5OH) in water is prepared by dissolving 76.9 mL of ethanol (density 0.79 g/cm^3) in enough water to make .250 L of solution. What is the molarity of ethanol in this solution?
asked by Anonymous 
business
. Theory and origin of the separation of powers II. The division of powers among the branches of government A. The executive branch B. The legislative branch III. The separation of church and state IV. The judicial branch V. Current ideas about the
asked by lt 
chemistry
how to balance this equation? (NH4)2Cr2O7  Cr2O3 + N2 + H2O plz tell step by step.i m a beginner
asked by abdullah 
college physics
A 215 g sample of a substance is heated to 330 degrees C and then plunged into a 105 g aluminum calorimeter cup containing 165 g of water and a 17 g glass thermometer at 12.5 degrees C. The final temp is 35.0 degrees C. What is the specific heat of the
asked by E 
physics
How long would our year be if our Sun were two fifths its present mass and the radius of the Earth’s orbit were six times its present value?
asked by erin 
business
. Theory and origin of the separation of powers II. The division of powers among the branches of government A. The executive branch B. The legislative branch III. The separation of church and state IV. The judicial branch V. Current ideas about the
asked by Anonymous 
math
a pharmacist mixed some 10% saline solution with some 15% saline solution to obtain 100ml of a 12%saline solution.How much of 10% saline solution did the pharmist use in the mixture.dO NOT UNDERSTAND TO MUCH INFO.
asked by Anonymous 
math  classifying events
A market survey has estimate that the probability of a household's subscribing to the following magazines is: Reader's Digest  0.6 Chatelaine  0.5 Maclean's  0.4 Reader's Digest and Chatelaine  0.2 Reader's Digest and Maclean's  0.2 Chatelaine and
asked by CL 
Math
Hello ma’am sir.. I have a problem in my assignment.. I‘m now a college student…a first year student…this is my question..please help me.. I really need it now… 1. The diameter of the earth is 7920 miles, and that of the moon is 2160 miles.
asked by Mr. J 
communications
I am looking for 4 suggestions on how to make team oriented projects more efficent and effective with team members that are located in different area's geographically. I just want suggestions that I could research on and elaberate on. Please help.
asked by debbie 
Economics
Consider a profit maximizing competitive firm with the following production function: y=L^α+K^β where 0
asked by Anonymous 
college physics
two people one twice as heavy as the other one, play tugofwar with a 12m ideal rope while standing on a frctionless ice surface.Would any of them move and if he does, how far?explain why.
asked by Anonymous 
grammar
What's the root word for "indefatigable"?
asked by AL 92 
Calculus
A 10 foot ladder leans against a 20 foot wall. Someone begins pushing the base of the ladder toward the wall at the rate of one foot per second. How quickly is the top of the ladder moving up the wall after 2 seconds?
asked by Julia 
algebra 3
what statement best describes the function f(x)=2x^3+2x^2x?
asked by kevin 
Chemistry
When 5 mL of 0.10 M HCl are added to 10 mL of 0.10 M NH3, what is the approximate pOH? Kb for NH3 is 1.8 x 10^5. I get pOH between 4 and 5. Is that right?
asked by Mary 
Chemistry
When 20.0 mL of 0.100 M AgNO3 are mixed with 80.0 mL of 0.0100 M Na2CrO4, what is the chromate ion concentration (CrO4^2)? Ksp for Ag2CrO4 = 9.0 x 10^12. I think it's 1.0 x 10^9. Am I right?
asked by Cory 
Algebra 2 with trigonometry
2sin2xcos2x cos^4xsin^4x (sinx+cosx)^2sin2x 2sinxcos^3x+2sin^3xcosx
asked by T 
chemistry
which reactant in the reaction of sodium carbonate and calcium chloride dihydrate is the limiting reactant if 1.00 gram of each reagent is used? a. sodium carbonate b. calcium chloride dihydrate
asked by grace 
Algebra II
simplify (^4 square root of 64) Would it be (^2 square root of 4) or (^2 sqyare root of 2)?
asked by Anonymous 
geography
what are two facts about Aswan High Dam and its impact on the area and two o pinions about that would most likely be shared by some residence of the area?
asked by katya 
Chemistry
When 20.0 mL of 0.10 M NaOH are added to 20.0 mL of 0.10 M hypobromous acid, HOBr, what is the hydrogen ion concentration (H^+)? Ka for HOBr is 2 x 10^9. I get 5 x 10^4. Is that right?
asked by Mary 
6th grade
a model of a park was built on a scale of 1.5 centimeters to 50 meters.If the distance between two trees in the park is 150 meters,what is this distance on the model?
asked by brea 
ACCOUNTING
COM/220 Grammar exercise week 3 1) dangling modifiers 2) misplaced modifiers 3) correcting dangling or misplaced modifiers
asked by tony 
Economic
“We’ll cut your taxes” is the most repeated campaign promise in the history of American politics. Yet somehow it is still considered visionary, worth a fight. Worth, indeed, a crusade. Why? It’s in our blood. Historically, Americans have hated
asked by Candace 
childcare
I need examples, how I can do, a lesson plan about regarding diversity that I would like to teach children. I should do a plan one long activity or several shorter ones for single lesson.And be specific about how you will assess what the children are able
asked by Rosa 
Chemistry
Is 50.0 mL of 1.0 M HF and 25.0 mL of 1.0 M NaOH a buffer with an approximate pH of 3? I say yes. Right?
asked by Jim 
College Chemistry
A spherical rubber balloon has an initial thickness of 0.45mm, and diameter 250mm. Final diameter of 1000mm. Find final thickness, true stress in the plane of the balloon wall, Air pressure required. (Assume rubber is idea and obeys Guassian statistics,
asked by nick 
Accounting
If the owner invests additional capital in the business during the month, how would that new investment be shown in the financial statements?
asked by Iryna 
chemistry
What is the IUPAC name of the following compounds? a) CHO I CH3CCH3 I CH2CH3 b) CH3 I CH3CHCH2CH2CHCH2CH3 I CH2CH3
asked by long 
equations trig
1) ctgx+cosx=1+ctgx*cosx 2) sin^4x+cos^4x=1/2 3) (sinxcosx)^2=sin2x 4) sin^4xcos^4x=7/2(sinxcosx) 5) sin^2xsinxcosx+cosxsinx=0
asked by LiNnda 
Chemistry
A spherical rubber balloon has an initial thickness of 0.45mm, and diameter 250mm. Final diameter of 1000mm. Find final thickness, true stress in the plane of the balloon wall, Air pressure required. (Assume rubber is idea and obeys Guassian statistics,
asked by nick 
hum 103
How does Sonata (complete work differ from Sonata form, how are they related. Any help please
asked by Kurt 
accounting
Joe operates a business that locates and purchases specialized assets for clients, among other activities. Joe uses the accrual method of accounting but he doesn’t keep any significant inventories of the specialized assets that he sells. Joe reported the
asked by Ramona 
Economic
We’ll cut your taxes” is the most repeated campaign promise in the history of American politics. Yet somehow it is still considered visionary, worth a fight. Worth, indeed, a crusade. Why? It’s in our blood. Historically, Americans have hated taxes,
asked by Candace 
4th grade
how do you find equivelent fractions
asked by danashia 
Science
2NO2. how many grams of NO2 will be produced with 5.00 moles of NO React? what would the working out of this be?
asked by Sammy 
English
1. You must be kidding. 2. You have to be kidding. (Can we use the second expression? Are both the same?)
asked by rfvv 
Algebra 2 with trigonometry
2sin2xcos2x cos^4xsin^4x (sinx+cosx)^2sin2x 2sinxcos^3x+2sin^3xcosx
asked by T 
Chemistry
I really don't know how to approach this problem and I really need help. Using the average molarity of your initial acetic acid solutions, the initial volumes, and the volume of NaOH added to reach the equivalence point, calculate the [C2H3O2]
asked by Megan 
geography
the ____protected nepal and bhutan from outside influences until 1900's
asked by judy 
Chemistry
Add 0.40 g of NaOH to 50.0 mL of 0.10 M HCOOH, and find approximate pH. No volume change, Ka HCOOH=1.8x10^4. I recomputed this and I get pH 5. Right?
asked by Jim 
College Physics
A 8.2 gram lead bullet that was stopped in a doorframe apparently melted completely on impact. Assuming the bullet was fired at room temp., what is the minimum muzzle velocity of the gun?
asked by H 
12th grade
why is damage to grey matter permenant and not white matter
asked by JeemJeem 
7th grade
six coins are dropped on the floor. find the probability that they will all land heads up.
asked by kevin 
Precal
Find the vertex of y^2 + 4y + 2x +10 = 0. Use completing the square to put the equation into standard form as your first step. Could you show me how to get the vertex? Thanks
asked by Randy 
5th grade
If I have a perimeter of 28 inches, how many rectangles can I draw and what are the dimensions?
asked by Chris 
Finance
Aunt Sally's Food Inc. is considering expansion. Sally has paid $100,000 for a marketing study to assist in the potential valuation. The study indicates that the new product will have sales of $1,500,000 per year each year for the next 6 years. However,
asked by Marie 
algebra
Two cars leave town at the same time going in opposite direactions.One travels 44 mi/h and the other 55 mi/h. In how many hours will they be 297 miles apart?
asked by Darez 
5th grade
WHAT IS THE GCF OF 32 AND 48
asked by BIB 
algebra
How would I make v the subject of the following equation? 5v=3(v+r)
asked by Nathan 
Algebra
Hi, I need to find the gradient of a straight line with the equation 3x+5y=3 Any ideas/
asked by Sam 
Chemistry
Nacl(s)+ HCl>H20 +NaCl(aq) delta H(amouint of energy aborbed by the solution is 4263.6J) Is it okay to say that H2 represents the heat evolved to neutralize 2g of NaOH with an acid
asked by Ade 
Chemistry
When you add 25.0 mL of 1.0 M NaF to 20.0 mL of 1.0 M HF,what would be the result? I think it's a basic buffer. Am I right?
asked by Cory 
Math
5a+6b/2 minus 5a+6b/2 The answer is suppose to be 6b. When I try and solve it I keep getting 0 for my answer.
asked by Rick 
business law
While Miguel lives in Texas, he buys a truck and immediately thereafter moves to Washington. On his way to Washington, he drives his truck through Oklahoma where he causes an accident by running into another car. The driver of the other car, Mindy, is from
asked by Anonymous 
Economics
Verify Euler’s theorem for the function f(x,y)=30(x^0.5)(y^1.5)2(x^3)(y^(1))
asked by Anonymous 
science
The greatest velocity a falling object reaches is called its what?
asked by Sophie 
algebra
a piece of wire 27/32 inch in length is cut into 3 equal peices how long is each peice (math)
asked by kaysan 
Chemistry
The hydrogen in an eudiometer has a volume of 80 ml when the pressure is 740 mm. what's its volume at standard pressure?
asked by Kevin 
statistics
5. A teacher wishes to compare two different groups of students with respect to their mean time to complete a standardized test. The time required is determined for each group. The data summary is given below. Test the claim at = 0.10, that there is no
asked by Ima 
Economic
The federal budget deficit is gone, transformed by a strong economy into a string of projected surpluses that should grow larger for years to come.... Eliminating the deficit is hardly the end of the government’s financial troubles, however.... [T]he
asked by Candace 
Chemistry
Sorry I nee to add something. The Ka for HF = 1 x 10^3. Is 50.0 mL of 1.0 M HF and 25.0 mL of 1.0 M NaOH a buffer with an approximate pH of 3? I say yes. Right?
asked by Jim 
World Literature and Language
How do the villagers respond to the spider girl? What do you think their response symbolizes  how does it relate to the rest of the story?
asked by Nikki 
physics
A 100kg mass starts from rest at the top of an incline plane that makes an angle of 35 degrees with the horizontal, the coefficient of friction of 0.005 between the ramp and the mass. The mass slides down the ramp and then slides to a stop on a surface
asked by Ariel 
physics
A 100kg mass starts from rest at the top of an incline plane that makes an angle of 35 degrees with the horizontal, the coefficient of friction of 0.005 between the ramp and the mass. The mass slides down the ramp and then slides to a stop on a surface
asked by Ariel 
Algebra
Can you please show me the steps on how to do this, and what the answer would be? 87. Solve the equation: v4/5=3/8 THanks
asked by y912f 
chemistry
find the molarity of 35.8 g of HCl in 2.5 L of water???? what is the answer
asked by Alexis 
algebra
Simplify the expression: 1/2*(square root of 112) Ex: 90^1/2= 10^1/2 * 9^1/2 Answer: 3(10^1/2)
asked by Jeet 
Chemistry
Is 10.0 mL of 0.10 M NH4Cl added to 10.0 mL of 0.10 M HCl a basic buffer? I think Yes. Right?
asked by Jim 
chemistery
alculate the molar solubility of Ca(OH)2 at 50 Celsius. it is not the average of the 0 Celsius and 100 Celsius solubilities; why not?
asked by elia 
LAL
(E)Essential and (NON)nonessential clauses check if these are right. do any sentence need commas? thx 1. the explorers whom i most admire are astronauts. (E) 2. one man who made space travel possible was Robert.(E) 3.goddard who tested many rockets helped
asked by Sara! 
English Essay Topic
What are the biggest factors affecting wealth and success in America?
asked by Ally 
financial Matters
I need help in understanding this question given by my instructor. I have posted this question to her, three days ago and not getting any response. Please help!! What is meant by shortterm bank notes and how does it apply for permanent financing at
asked by Wanda 
grammar
identify the case of the noun "statesman" in the sentence ben franklin was a great statesman
asked by micah 
Algebra
solve using the quadratic formula 2x^2 +6x3=0
asked by Marie 
algebra
Hi, I can't figure this story problem out can u please help? I need to learn how to do this story problem. You dive directly upward on a board that is 32 feet high. After t seconds, your hight above the water is described by the polynominal 16t^2+16t+32.
asked by Christy 
critical thinking
what is thinking
asked by kendra 
Chemistry
Why is a NaOH solution disposed differently than a solution composed of Water and Nacl2
asked by Marge 
Accounting
Which of these assets are "quick assets"? Cash and cash equivalents Shortterm investment Trading assets Accounts receivable Inventories Deferred tax assets Other current assets I am thinking "cash and cash equivalents" and "accounts receivable"
asked by Mike 
Math
a total of $ 14,000 is invested in two funds paying 4% and 5% annual interest. The combined interest is $620 a)write a system of equations to model this problem b). graph this system and use the graph to estimate how much was invested in each fund?
asked by LAnae 
Math
A box contains four red marbles, seven white marbles, and five blue marbles. If two marbles are drawn one at a time, find the probability that both marbles are white if the draws are made as follows: (a) With replacement ____________ (b) Without
asked by Star K 
math HELP
why don't u want to join
asked by dylan 
physics
Which is true as one gets closer to the center of the earth? a. The person’s weight increases b. The person’s weight decreases c. The person’s weight remains the same d. The person’s mass changes e. A new dimension is discovered
asked by jude 
physics
A satellite orbits the Earth with a fixed radius, what happens to the satellite if the speed is decreased to zero?
asked by Ashley 
chemistry
find the molarity of 9.0*10 (to the 4 power) moles of Mg(OH)2 in 1500 ml of water. what is the answer?
asked by Alexis 
algebra
If theta= (7/6)*pi, find the equivalent angle measure in degrees.
asked by Frankie 
Statistics
I can do problems like this if the mean and standard deviation was given but what do I do if it's like this When asked whether they drink alcohol or not, 79 out of 441 college students said that they did not. Construct a 90% CI for the proportion of all
asked by John 
college algebra
write two equations that have your two intergers as a solution. 5xy=10 X + 6y=18 addition and subtraction methods
asked by connie 
Accounting
I am trying to tell the difference between trade credit and opportunity costs, but now liking what I find on the internet. Is there a link that shows both? I could not find one. In order to do my assignment I need to compaire the two so I could figure out
asked by Luke 
English
1. Do you live around here? 2. Do you live about here? 3. Do you live near here? (Are they all grammatical and the same?)
asked by rfvv 
Algebra2
write the series with summation notation:1,7,13,19
asked by Breanna 
financial Matters
I need help in understanding this question given by my instructor. I have posted this question to her, three days ago and not getting any response. Please help!! What is meant by shortterm bank notes and how does it apply for permanent financing at
asked by Wanda 
Chemistryr
Add 0.40 g of NaOH to 50.0 mL of 0.10 M HCOOH, and find approximate pH. No volume change, Ka HCOOH=1.8x10^4. I get pH 8. Right?
asked by Jim 
Chemistry
Add 0.010 mol of solid sodium butanate, NaC4H7O2 to 100.0 mL of 1.0 M butanoic acid. No volume change. Ka for HC4H7O2=1x10^5. I get pH 6. Rught?
asked by Jim 
Algebra
Multiply: 5p5/p times 5p^2/8p8
asked by Rick 
math
Identify the numerical coefficient of the expression. –7t2
asked by Sawa 
Digital Imaging
In regards to Photoshop 4, if you could recommend one feature for me as a beginner to concentrate on, that was pretty basic, but enhanced photos tremendously, what would it be?
asked by Jim 
Math
2/t=t/5t12
asked by Kylan 
poetry
Can u please explain to me the poem On the wire by Robert service in detail?
asked by katie 
algebra
Quan is shopping. He can buy 2 pairs of pants and 1 shirts for $79.85 ( before tax is added). He can buy 1 pair of pants and 2 shirts for $69.85 (before tax is added). To figure out how much a shirt or a pair of pants costs,you must first identify the
asked by paul 
algebra
Sara and her sister Emily both collect charms for their charms bracelets. Together they have 42 charms. Emily has 2 more charms than Sara. How many charms does each girl have? a) Emily has 22, and Sara has 20. b) Emily has 20, and Sara has 22. c) Emily has
asked by kiddo 
Statistics
A sample of four supermarkets is to be selected from a total of eight in a small town. How many different random samples without replacement can be drawn?
asked by Kassie 
science
what are surface waves?
asked by chloe 
science
i am doing a project on skateboards and how are they made, but i have to write a research paper and i need help i need somebody to write one for me
asked by quanise 
Integrated Chem/Phys
If the density of a 225g stuffed plush toy is 1.25g/cm^3 and the water volume in a glass is 25 ml, find the new level of water after the toy is pushed under water. I know that D=m/v so 1.25=225/v so 1.25/225=v so I got .005 which cannot possibly be right.
asked by Jordan 
English (Macbeth)
I'm looking to simply answer these questions on Macbeth. Problem is, I really honestly don't understand the entire book. 1. Explain the significance of the premurder sililoquy which beings, "Is this a dagger I see before me "(II.i.30)? 2. Provide a
asked by Anonymous 
spanish
how do you say please revise all the verb tenses
asked by Arleen 
physics
Why is 9.8 used as g on Earth but nowhere else in the solar system? Explain.
asked by kasey 
Biology Research Paper
I need help writing a conclusion for my research paper..please help! I need to finish this ASAP. Thanks We find it mixed in our food on the shelves in the supermarket and growing in a plot down the lane. It is variously known as genetic engineering, which
asked by mysterychicken 
Algebra
13. Find the domain of y=2x+1 Bobpursley said: The domain of x is not restricted by that equation. Does that mean the domain is all real numbers?
asked by y912f 
math
surface area formula for room measurements 23ft 6in length, width 14ft 8in and height 30 feet
asked by sandra 
chemistry
17.9 moles of NaOH in 500 ml of water? please tell me the answer
asked by Alexis 
Precal
show that: (1tanx)/(1+tanx)= (1sinx)/(cos2x)
asked by krista 
Precal nightmare
Show that: sec (AB)= (cos(A+B))/(cos^2 ASin^2 B)
asked by krista 
math
how do i subtract (t+3)(t+14)
asked by edpon 
math: not sure how to figure out
What are the odds against getting exactly two heads in three successive flips of a coin? The odds for are: 2/3 but I do not know how to figure out the probability of odds against getting exactly two heads in three successive flips.
asked by bwb 
algebra 2
how do i set up data to find the standard deviation of the data?
asked by chicken littell 
4th grade
why is 3+3=6 NOT in the fact family of 2,3,and 6
asked by Aut 
Literature
''Up above her was a tree in a pearly cloud of mistloe.''this quotation contains A)a simile B)a metaphor C)personfication D) an understatement
asked by Rebecca 
Accounting
If you were buying a business what would you look for in the company's financial statement?
asked by Lashun 
algebra
How do I simplift algebraic equatuions like this one: 6x*3/91. Thanks(:
asked by Cassie 
Math
Solve the inequality. The answer is suppose to be x> or equal to 8. Everytime I solve it I get O. 16x+16< or equal to 4(3x12)
asked by Johnnie 
physics
Hi! could anyone help me to solve this problem please. Thank you. Question:An electron has a speed of 0.68 c. (a) Find the speed of a proton that has the same kinetic energy as the electron. (b) Find the speed of a proton that has the same momentum as the
asked by Chan 
math
each week jacob earns 30 dollers jacob saves 3 5ths of his money weekly how much does he save each week
asked by christian 
Chemistry
What is the molar hydronium ion concentration in solutions with pH values of a) 3.45 and b) 10.290. How do you work these problems?
asked by Melody 
math
2/3over2/9=x over 3/4
asked by danita 
science
Choose one of the following terrestrial resource challenges: o Loss of agricultural land o Reducing solid waste Post your response to the following: What are the challenges of managing your chosen terrestrial resource issue? What human activities
asked by Anonymous 
10th grade living enviorment
what happens when a population or group of living things is divided into two separate groups in two separate environments ?
asked by Dominique 
algebra
what is the solutionof the following linear system? 2x + y = 1 x + 1/2y =1/2 a) (2,1) b) none c) (1/2,2) d) infinite number of solutions
asked by kiddo 
Algebra II
Does the square root of ((a^2)(10a)+(25))simplify to a+5 times the square root of 10a ? Thank You.
asked by Anonymous 
Math
Solve for the indicated variable. Can you please show me the steps on how you get the answer so I know how to do it. Thanks. F=9/5C+32, for C
asked by Ryan 
chemistry
Thanks for the Help
asked by curtis 
Chemistry
Hi I need help with sig figs with this problem (0.6216+0.0871)/(0.0740+0.0335)
asked by Anonymous 
ethnics
The Official Language Movement · Resources: Racial and Ethnic Groups, the Internet, and the University Library · Investigate the Official Language Movement, which is an important Hispanic American cultural interest, described on pp. 243â€“244 of the
asked by Anonymous 
math
what looks like a rectangular prism
asked by miranda 
computer
Think about how your computer system compares to a stateoftheart system
asked by tee 
Economic
The federal budget deficit is gone, transformed by a strong economy into a string of projected surpluses that should grow larger for years to come.... Eliminating the deficit is hardly the end of the government’s financial troubles, however.... [T]he
asked by Candace 
Math:Radical + regular number
Example : 4 + 5 radical 3 How does that work?? And how do you divide the answer with 12? (P.S made the problem up but that's the concept of what I don't get)
asked by Gint 
Algebra
13. Find the domain of y=2x+1 I'm not sure how to do this, and what the answer is. 27. Which variable is usually associated with the concept of input? a. x b. y c. m d. b A
asked by y912f 
Chemistry
What is the purpose of washing and drying the thermometer between readnigs?
asked by Nikki 
geometry
find the measure of diameter AC if BP = x and AC= 5x6
asked by brittaney 
childcare
I have decided preschooler level , but I don't know how to start it. "regarding diversity" I need examples. Thank you
asked by Rosa 
history
what problems did Nigeria encounter after oil was discovered there?
asked by dalton 
chemistry
find the molarity of 0.087 f of H2SO4 in 3.4 L of water? what is the answer
asked by Alexis 
math
You buy a square lot that is 154 yd on each side. What is its size in acres?
asked by Sawa 
Bio
need help writing a conclusion for my research paper..please help! I need to finish this ASAP. Thanks We find it mixed in our food on the shelves in the supermarket and growing in a plot down the lane. It is variously known as genetic engineering, which is
asked by mysterychicken 
algebra 2
how do i set up data to find the standard deviation of the data?
asked by chicken littell 
math
why is 3+3=6 NOT in the fact family of 2,3,and 6
asked by Aut 
English
1. I'd love to introduce them to you. 2. I'd love to introduce to you them. (#1 is correct, right? What about #2? Is it wrong or right?)
asked by rfvv 
Literature
The autor of the play The Rising Moon named the play after an actual song.This is an example of A)a foil B)dramitic irony C)an allusion D)an understatement
asked by Rebecca 
algebra
input = x output = x 2 so if i have 4 in the input box what would the output be please show how you got it
asked by Anonymous 
math
in = x out = x negative 2 so if 4 is in then what is the out please show how you got it
asked by sam 
science
what is it called when you copy another animals patterns or behavior
asked by babiigurl12 
math
in = x out = 2 x so if 1 is in what is out , if 0 in what out, and if 3 in what is out these are three differint promgels and show how you got it
asked by sam 
schumacher
I need to know how to get the fraction 20 over66 to the simplest form using factop trees
asked by chase 
Algebra
Would the square root of 5 + the square root of 20 equal 10?
asked by Anonymous 
Science
What is the smallest and largest planet that we have discovered?
asked by Debbie 
government
Whats the difference between the government in North and South Korea?
asked by Taylor 
algebra
thanks drwls i have the correct answer thanks again :)
asked by kiddo 
College Finance
Aunt Sally's Food Inc. is considering expansion. Sally has paid $100,000 for a marketing study to assist in the potential valuation. The study indicates that the new product will have sales of $1,500,000 per year each year for the next 6 years. However,
asked by Marie 
Math
Could someone please explain this problem to me? I will show you what I have so far. Perform the indicated operations and simplify. w2/w7w+1/w+7+w77/w^249 I made it to this step and now I can't figure out what to do next. w^2+w14/(w+7)(w7) +
asked by B.B. 
reply to Q " Physics hard... can't get it right"
kk this is what i did V=strt(3*k=8.31*T=1365)/m=5.32*10^26
asked by richard 
English 122 Composition II
IN YOUR POST, DISCUSS ANY AREAS RELATED TO CITING SOURCES THAT YOU FIND CONFUSING OR DIFFICULT TO UNDRESTAND OR APPLY.
asked by vickie 
maath
Factor the GCF from each term in the expression. Can you please show me the steps on how you reached your answer? Thank you!! 8m^7+6m^44m^2
asked by Michael 
Math
When it asks Find the Function Rule for the Table..what does that mean..very simple terms for 3rd grade.
asked by Susan 
computors
the benefits of cropping tools with photoshop 4
asked by jen 
English
1. Is it okay if I open the window? (What does 'it' refer to in this sentence?) 2. Do you mind if I borrow your pen? (What is the meaning of 'mind' in this sentence?)
asked by rfvv 
government
Describe the difference between the government in North and South Korea.
asked by Taylor 
English
Should this sentence have a comma in it? The excitement and adventures he gained along the Mississippi River as a steamboat pilot gave him the insight into characters that are in his writings.
asked by Jennifer