Questions Asked on
March 10, 2010

12th grade
A bicycle wheel has a radius of 0.330 m and a rim whose mass is 1.20 kg. The wheel has 50 spokes, each with a mass of 0.010 kg. a.) Calculate the moment of inertia of the rim about the axle. b.) Determine the moment of inertia of any one spoke, assuming it
asked by Janelle 
Precalculus
Explain why there does not exist a point on the horizontal axis whose distance from (5,4) equals 3. HELP!!
asked by jh 
health and disease
How do disease impact the delivery of health care services, such as treatment options and resources available today to the public?
asked by Jenny 
Math
Block A & B slide on lubricated surfaces for which friction is .1. knowing that the system is released from rest, determine the velocity of block B after 5 seconds block A is 10 N block B 20N and block B is on a 30 degree incline connected to a at top of
asked by scott 
English
1. Did you apply the cosmetics on your face? 2. Did you wear the cosmetics on your face? 3. Did you put the cosmetics on your face? (Are all correct and the same? Can we use 'lotion' instead of 'cosmetics?)
asked by rfvv 
eth125
what do yopu predict the effect on hispanic and latino panethnicity to be the future
asked by lisa smith 
English
1. Give me five grapes from the bunch of grapes. 2. You should call the Internet connection company. Then you can get the Internet installed, but you should have your ailen card. 3. Interview two of your new friends and write down the information of the
asked by rfvv 
Algebra
How do you find the function to a problem quickly? For example: A tennis club holds a doubles tournament every spring. This year the club has 40 teams involved. At the end of each round half of the teams are eliminated. How many rounds must be played to
asked by Renee 
trig
prove: tan*2xsin*2x=sin*2xtan*2x
asked by ruby 
Precalculus
Suppose f is a function with exponential decay. Explain why the function g defined by g(x)=1/f(x) is a function with exponential growth. PLEASE HELP!!
asked by jh 
chemistry
lets just say that 5g of solid benzoic acid burns under gaseous oxygen atmoshphere. Temperature increases from 20c to 50c. So is this exothermic so the sign is negative? how is it not the same as 2 mol of solid iron (C = 25.1 J/(mol K)) is heated from 20C
asked by eng 
english
How can I make this a better five –sentence paragraph using chronological order to arrange the details of the paragraph? Signing to my homepage is simple. First I go to the school website which is ………. . Then I click on student login. Then I enter
asked by Me 
chemistry
Rank these elements in terms of increasing atomic radius AI, F, Sr, N, Cs
asked by liz 
Math
I need help with this problem. I have to prove that cos^2(2x)cos^2x = sin^2xsin^2(2x)
asked by Clarise 
chemistry
Given the equilibrium constant values: N2 + 1/2O2 >>> N2O ; kc = 2.7 * 10^18 N2O4>>>>2NO2 kc=4.6*10^3 1/2N2 + O2>>>NO2 kc = 4.1 * 10^9 What is a value of Kc for this reaction? 2N2O + 3O2 >>> 2N2O4
asked by abe 
College chemistry
A buffered solution is made by adding 50.0 g NH4Cl to 1.00 L of a 0.70 M solution of NH3. Calculate the pH of the final solution. (Assume no volume change.)
asked by Nikita 
physics
The MASS OF A SATELLITE IS 2000Kg .DETERMINE THE WEIGHT OF OF THE THE SATELLITE WHEN IT IS (i)resting on the earth (ii) 1000km above earth surface
asked by fanuel 
physics
Two billiaard balls rolls to one another under an angle of 45°. Ball A have a speed of 3m/s and follows a track along the positive xaxis. Ball B moves on a track towards the xaxis and comes from the left top corner with a speed of 2m/s. Calculate the
asked by Ernest 
4th grade
Analogies an impression is to ____ as an image is to see.
asked by trice 
biology yr 12
please help i have 2 biology questions. identify examples of transgenic species and their uses, in both plants and animals. and use available evidence to debate the ethical issues arising from the development and use of transgenic species. thankyou :)
asked by Hayley 
ALGEBRA
help me solve 6/z+8 = 5/z3? do i first find the lcd?
asked by GGIFT 
ALGEBRA
Janet can shovel snow from her driveway in 55 minutes. Jim can do the same job in 35 minutes. How long would it take Janet and Jim to shovel the driveway if they worked together? ____ minutes ??
asked by GGIFT 
ETHICS IN MANAGEMENT
Write a 1,050 to 1,200word paper on personal ethics development that examines your personal ethical system and ground rules, including its origins and development.
asked by flowerpower 
ALGEBRA
I need help finding the LCM of (8+3w) (649w^2) (83w)
asked by GGIFT 
ALGEBRA
Maria bicycles 7 km/h faster than Carlos. In the same time, it takes Carlos to bicycle 42km, Maria can bicycle 63km. How fast does each bicyclist travel?
asked by GGIFT 
physics
how will the weight of a 20 kg object change if it was in a lift that accelerates at 4 m.s?
asked by Anonymous 
ALGEBRA
If I am dividing the following: x^2+3x over x^2+2x3 by x over x+1.. i know to do the recip. of x over x+1 and get the foll. x^2 + 3x over x^2 + 2x 3 times x+1 over x... now (x^2+3x)(x+1) over (x^2+2x3)(x) now x(x+2)(x+1) x(x+2)(x1) the x+2 over x+2 = 1
asked by GGIFT 
biology
This is to do with genetics and drosophila. There are 3 pairs of characteristics  body colour, eye colour and wing length. The parents are all from purebreeding lines. First Cross P1: malegrey body, normal wings femaleblack body, vestigial wings F1:
asked by Anonymous 
maths
Determine the coordinates of the point on the curve representing the function f(x)=ln(2x1) where the tangent is parallel to the line with equation 2x5y=0 Thanks for any help!
asked by Anonymous 
chemistry
What is the expression and numerical value for the equilibrium constant for the following: Ag+ + Cl = AgCl(s) using the Ksp= 1.8*10^10 of AgCl please show how its calculated.
asked by S 
Maths
Calculate the area of the surface bounded by the curves representing the functions f(x)=x²+6x and g(x)=4/(x2). Thank you in advance If possible, help with this question aswell: Calculate f'(x)=(e^2x  ln(2)). Between ln(2) and 0. I know you integrate the
asked by Anonymous 
probability
A cooking recipe lists 6 ingredients which must be mixed in the correct order. Unfortunately the bottom of the page on which the correct order was given has been burnt off. Suppose that you make a guess at the correct order. What is the probabilty that you
asked by Anonymous 
health policies
How have major policies shaped health care for the older adult?
asked by april 
physics
A COPPER BLOCK ,MASS 500g AND AT 200 DEGREES CELCIUS GIVES OUT ENERGY AT AN AVERAGE RATE OF 50W. (i)what is temperature after 5 min ? (ii)how long will it take before its temperature drops to 50 degrees celcius
asked by keheze 
Business
In one of my assignments I'm suppose to explain the types of input text in business case analysis. I read my book and the resource book but all it says is that there are more types of input texts than the case study itself. :S I tried searching online for
asked by Jade 
calculus
How do you prove that the total area of a fourpetaled rose r=sin2x is equal to onehalf the area of the circumscribed circle?
asked by Bobby 
calculus
Find an interval of tvalues such that c(t)=(2t+1,4t5) parametrizes the segment from (0,7) to (7,7). What do you do???
asked by Dana 
9th grade
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mile per hour and train B is traveling at 125 mile per hour. Train A passes a station at 3:15pm. If train B passes the same station at 3:27 pm at what time
asked by Kimmie 
Engliash
Need some help from teachers :) On Friday I am teaching Phrasal verbs (ninth grade,learning English as a foreign language, introducing Phrasal verbs) Anyway, I need some funny ideas on how to practice phrasal verbs (not the typical fill in exercises) but
asked by refy 
9th
Solve for: 20
asked by Kimmie 
managerial accounting
Using the data below please do the following in an Excel spreadsheet and email it directly to me. 1. Prepare an income statement using variable costing (25 points) 2. Compute the unit product cost under both absorption and variable costing (10 points) 3.
asked by morty 
Algebra
what is the equivalent expression of 94 + xy
asked by Dora 
Algebra
Collect like terms 18r^2 + 7s + 4r^2
asked by Dora 
Math
Use factoring to solve the quadratic equation. 5x2  25x + 30 = 0
asked by Anonymous 
Algebra
In a triangle ABC, angle B is three times angle A and angle C is 5 degrees less than 6 times angle A. Find the size of the angles.
asked by Dora 
math
Factor completely, or state that the polynomial is prime. 375x^3  192y^3
asked by Anonymous 
math
1.Use factoring to solve the quadratic equation. x2  64 = 63x
asked by Anonymous 
math
Factor completely, or state that the trinomial is prime. 3y^3 + 15y^2 + 18y
asked by Anonymous 
math
Factor using the formula for the sum or difference of two cubes. x^6  27y^3
asked by Anonymous 
English
Can you check the grammar in the following statements I need to prepare for tomorrow, please? I just want to make sure that the use of the prepositions and pronouns is correct. Thank you very much in advance. 1)A simile is a stated comparison between two
asked by Franco 
English
I forgot to include the following statements. I really hope you can correct them as well. 8)The wind goes away from her house or the wind left her house? 9)The omniscient narrator can be divided into obtrusive and unobtrusive (is it correct? Or would be
asked by Franco 
chemistry
how could you determine whether all the potassium chlorate had been decomposed after heating it using the law of definite composition?
asked by Ash 
chemistry
why is the law of definite composition important?
asked by Ash 
math
I have a couple of math questions that i cant seem to get to work out. can someone help me please.? 1.) (x/x+6)(6/x6)=(x^2+36)/(x^236) 2.) (r2)(2r)=0 3.) add (8/ty^2)+(9/t^2y) 4.)add (7/w)+(8/w^2) 5.)add ((r+10)/r)+(r/(r+10)) 6.) divide
asked by jen 
7th grade
Nikki read 896 pages of her book this week. How many pages is this per day?
asked by Anonymous 
MATH
CAN SOMEONE HELP ME WITH THIS PROBLEM HAT SIZE HEAD CIRCUM. HEAD CIRCUM 7 1/2 20 3/5 60 X X 59 FOR THE FIRST X ROUND TO THE NEAREST EIGHT INCH. fOR THE SECOND X ROUND TO THE NEAREST FIFTH INCH AS NEEDED.
asked by jen 
Chemistry
Assume you are performing the calibration step of Experiment 8 and you begin with 50 g of water at 20 oC and 50 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,
asked by Andrew Howard 
Maths
if q>0, how can u use the graph of y =sin theta to draw the graph of y =sin theta +q?
asked by Angel 
social studies
in what way could putting a tariff on foriegn shoe imports result in a disadvantage to the untited states economy or to the United states consumers.
asked by bill 
Chemistry
Assume you are performing the calibration step of Experiment 8 and you begin with 50 g of water at 20 oC and 50 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,
asked by Andrew Howard 
physics
A boy pulls a sled of mass 5.0 kg with a rope that makes an 60.0° angle with respect to the horizontal surface of a frozen pond. The boy pulls on the rope with a force of 10.0 N; and the sled moves with constant velocity. What is the coefficient of
asked by Anonymous 
geography
can you tell me what cultural influences? means
asked by nicky 
geography
Which statements describe cultural influences? 1)Florida is bordered by water on three sides. 2)French is spoken in parts of Louisiana. 3)Forests are cleared to provide space for cattle grazing. 4)Male children are encouraged to attend the university.
asked by nicky 
help
A group of five students needs to break into two smaller groups in order to tackle the two different assignments associated with a larger group project. Naturally, they feel that it would be most fair to break into groups of two and three. How many ways
asked by sam 
calculus
How do you find the area of the intersection of the circles r=sinx and r=cosx?
asked by Tim 
arithmetic
The sum to t of an Arithmatic Sequence is 1/2 t(5t1).Determine the k term
asked by Anonymous 
geometry
The bases of a trapezoid measure 1/4 and 3/8 inches, and the height is 1 inch. What is the area of the trapezoid?
asked by travis 
SCience
An RCcircuit has a time constant of 6x103 seconds. The capacitor stores a maximum energy of 8 J, when charged using a 3Volt battery. Using the same battery, we want to increase tenfold the amount of stored energy, while keeping the same time constant
asked by Mike 
Geography
Which statement is not a benefit of increased development? A)improved access to health care B)increased wealth C)more even distribution of resources D)reduced unemployment i think i might be (B) beacuse it is not benefit the increased development.
asked by nicky 
MATH
tan è = RISE OVER RUN, RISE IS 10 AN D RUN IS 6 tan è = 10/6 SOLVE è
asked by CLINT 
com 220
I have to write a thesis statement on a topic I am going to write on my topic is Racism this is my thesis statement. How can I improve it? Why did racism start, as we are all the same? The first step is to identify how racism started and why people are
asked by Tracie 
BIOCHEMISTRY
WHAT CONCENTRATION OF SOLUTION DO YOU GET IF YOU DISSOLVE 45G OF GLUCOSE (MOLECULAR WEIGHT =180) IN 500ML OF WATER?
asked by ELAINE 
math
Factor completely, or state that the polynomial is prime. 375x^3  192y^3
asked by ree 
physics
A heavy wooden block rests on a flat table and a highspeed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of the bullet is 10.5 g, the mass of the block is 10.5 kg the
asked by Anonymous 
ALGEBRA
to solve the following: 4s over 7s = 3 over s7... LCD is s7 then (s7)(4s over 7s) = (s7) (3 over s7)? am I on the right track???
asked by GGIFT 
Algebra
log3 (2x – 1) – log3 (x – 4) = 2
asked by Kelli 
english
do good stereotypes always have to send out good messages towards those good people?
asked by Anonymous 
Nath(Urgent Please check)
1)Complete the identity sec Q  1/sec Q Does this equal 2tan^2Q?
asked by Abbey 
law of definite composition
when performing an experiment using potassium chlorate and heating it to form potassium chloride what reasons can you offer for any differences between your results and another lab group in your class?
asked by Ash 
math
A set of data is normally distributed with a mean of 16 and a standard deviation of 0.03. What percent of the data is between 15.2 and 16?
asked by Sally 
Math
Find P(5,2).
asked by Sally 
Math
How many ways can 9 keys be arranged on a circular key ring?
asked by Sara 
Math
Find the probability of tossing exactly 2 heads on 3 tosses of a fair coin.
asked by Sara 
Physics
Tarzan swings on a 27.0 m long vine initially inclined at an angle of 33.0° with the vertical. (a) What is his speed at the bottom of the swing if he starts from rest?(b) What is his speed at the bottom of the swing if he pushes off with a speed of 3.00
asked by Kelsey 
math logic
A group of five students needs to break into two smaller groups in order to tackle the two different assignments associated with a larger group project. Naturally, they feel that it would be most fair to break into groups of two and three. How many ways
asked by M.A. 
physics
When an automobile moves with constant speed down a highway, most of the power developed by the engine is used to compensate for the mechanical energy loss due to frictional forces exerted on the car by the air and the road. If the power developed by the
asked by Kelsey 
Math
Find the first three iterates of the function f(x)=x^22,if the initial value is 2.
asked by Nora 
Math
Two cards are drawn at random from a standard deck of 52 cards. What is the probability that both cards are queens?
asked by Nora 
Math
Write 0.36 as a fraction.
asked by Kevin 
geography
Members of which economic alliance can live, work, even vote in any member nation? A)NAFTA B)OAU C)EU D)ASEAN i really don't know this one maybe a but im very unsure
asked by nicky 
chemistry
What happens when : (give balanced chemical equations only) 1. Caustic soda reacts with carbon dioxide 2.caustic soda reacts with zinc hydroxide 3.potassium reacts with oxygen 4.sodium carbonate is fused with silicon dioxide 5. when bleaching powder reacts
asked by paula 
chemistry
How aluminium is extracted from its BAUXITE ORE which contains Fe203 and Sio2 as impurities?
asked by paula 
math
Short math quadractic equation word problem*best answer? josh buys concert tickets worth $180, he then keeps 2 of the tickets and sells the rest for 9 dollars more, he make a total profit of $36, after selling all the tickets. what was the original ticket
asked by sam 
Geography
Employment opportunities for more than five hundred people will be lost when New Development Solutions, Inc., closes its headquarters in the city of Nowhere, USA. What are effects that the closing of New Development is likely to have on Nowhere? 1)Service
asked by nicky 
Chemistry
Name the following compounds by IUPAC system : 1. [ Cr (NH3)3 Cl3] 2. Na4[Fe (CN)6 ] 3. Fe4[Fe (CN)6]3 4. [Ag(NH3)2] OH 5. [Cr(NH2Ch2ch2NH2)3]cl3
asked by paula 
chemistry
How hydrogen on large scale is prepared from water? How SODIUM METAL on large scale is prepared from common salt?
asked by paula 
math
josh buys concert tickets worth $180, he then keeps 2 of the tickets and sells the rest for 9 dollars more, he make a total profit of $36, after selling all the tickets. what was the original ticket price? howmuch people bought the ticket?
asked by sam 
biology
Why fresh water fishes pass dilute urine? what is " Meroblastic clearage" ?
asked by paula 
English
I have to fix sentences. these are the ones i am stuck on.. It was a surprise to both Marys and I to learn that Switzerland didn't give women the right to vote until 1971. Each of the young women in the Family Life class decided not to marry after they
asked by Tori 
physics
Show that beta = 3 alpha Why a gas has two heat capacities?
asked by paula 
chemistry
DATA TABLE 1: DATA FOR REACTION MIXTURES Tube Number Pb(NO3)2 NaI Height Ppt. (cm) Maximum Theoretical Yield Ppt. (mol) (mL) (mol) (mL) (mol) 1 2.0 0.5 16.0 0.5 0.6 2 4.0 0.5 14.0 0.5 1.3 3 6.0 0.5 12.0 0.5 1.8 4 8.0 0.5 10.0 0.5 1.5 5 10.0 0.5 8.0 0.5 1.7
asked by BT 
chemistry
DATA TABLE 2: SPOT TESTS OF SUPERNATANT SAMPLES FROM REACTION TUBES Substance Added Tube 1 Ppt.? Tube 2 Ppt.? Tube 3 Ppt.? Tube 4 Ppt.? Tube 5 Ppt.? Tube 6 Ppt.? Pb(NO3)2 yes yes no no no no NaI no no no yes yes yes reagent present in excess How do I
asked by BT 
physics
Two charges of 5 x 10(power 6) C and 3 x 10(power 6) C are placed at distance of 200mm from each other , find point on the line joining the charges at which electric field is zero.
asked by paula 
chemistry
Pb(NO3)2 6.0mL 0.5 mol NaI 12.0mL 0.5 mol What is the mole ratio between Pb(NO3)2 and NaI?
asked by BT 
Math 157
five numbers are to be picked, without repetition from 44 numbers to determine the winner of the fortune five game in the state lottery. If the order of the numbers is insignificant how many different ways can a winning quintuple be seleted? what is the
asked by Sulynn 
chemistry
What is the mole ratio of the reactants in a tube containing: Pb(NO3) 22.0mL 0.5 mol NaI 16.0mL 0.5 mol
asked by BT 
chemistry
What is a complete ionic equation for the reaction between Pb(NO3)2 and NaI?
asked by BT 
trig
A plane is flying at an elevation of 30000 feet. It is within sight of the airport and the pilot finds that the angle of depression to the airport is 18. Find the distance between the plane and the airport. Find the distance between a point on the ground
asked by tim 
trig
The captain of a ship at sea sights a lighthouse which is 280 feet tall. The captain measures the the angle of elevation to the top of the lighthouse to be 25. How far is the ship from the base of the lighthouse?
asked by tim 
college
For the reaction P4(s) + O2(g) = P4 O10(s) Identify the limiting reaction mixture conataining 1.00 mol each of P4 and O2
asked by Al 
World Religion
Studying for midterms and trying to absorb all this. Does anyone know: Is the Upanishads the philosophical portion of the RigVeda? The duties (dharma) of each class. Where they found in the Mahabharata? Thanks
asked by Leesa 
physics
A heavy wooden block rests on a flat table and a highspeed bullet is fired horizontally into the block, the bullet stopping in it. How far will the block slide before coming to a stop? The mass of the bullet is 10.5 g, the mass of the block is 10.5 kg the
asked by esther 
to make equal
NH4+ + So42 + Zn+2 + 2Cl >>
asked by Dymex 
Chemistry Solubility Curves
If 50 grams of water saturated with potassium chlorate at 23*C is slowly evaporated to dryness, how many grams of the dry salt will be recovered? I know that I should know this.. But it has 50 grams of water instead of 100. ): Please, someone tell me how
asked by Rachel 
Chemistry
How many grams of CH3OH must be added to water to prepare 420.0 mL of a solution that is 5.0 M CH3OH?
asked by Camarra 
Chemistry
What volume (mL) of a concentrated solution of sodium hydroxide (2.00 M) must be diluted to 600.0 mL to make a 0.860 M solution of sodium hydroxide? Express your answer to the nearest tenth mL.
asked by Camarra 
Chemistry
In a titration of 26.0 mL of 0.840 M H2SO4, __________ mL of a 0.200 M KOH solution is required for neutralization. Express your answer to the nearest 1/10 mL. Hint: remember H2SO4 is a diprotic acid
asked by Camarra 
english
What is the predict in the sentence The naval aviators were physically abused in horrible ways.
asked by liz 
psychology
What would cause prices to drop? Which of the following would cause prices to drop? A.) Increased production by business. B.) Increased taxes on business. C.) Higher levels of demand by consumers. or D.) A reduction in the money supply. I would truly
asked by vedrana 
science
how do i draw a simple particle diagram to show how ear defenders will work
asked by fred 
world geography
the belief_____, or rebirth,is part of the hindu religion
asked by davina 
financial Accounting
Johnson's boat yard Inc., is completing the accounting process fr he year just ended, Novembe. 30, 2010. The transactions during 2010 have been journalized and posted. The following data with respect to adjusting entries are available: On October 1,2010,
asked by Karinna 
chemistry
How many miles of sodium hydrogen carbonate would be needed to react with 150.0 g of sulferic acid?
asked by Megan 
math
A $5,000 loan is offered for 18 months at 7.50% compounded quarterly. For full marks your answer(s) should be rounded to the nearest cent.
asked by vlad 
Math
Simplify: 1m ——— m ————— m1 — m
asked by . 
geography
Culture is seldom a factor in world conflict. A)True B)False i think its false
asked by nicky 
Math
Consider the equation below. (Give your answers correct to two decimal places.) f(x) = 8sin(x) + 8cos(x) 0 ≤ x ≤ 2 (a) Find the intervals on which f is increasing. (Enter the interval that contains smaller numbers first.) ( , ) union ( , ) Find the
asked by Aymal 
geography
Employment opportunities for more than five hundred people will be lost when New Development Solutions, Inc., closes its headquarters in the city of Nowhere, USA. What are effects that the closing of New Development is likely to have on Nowhere? 1)Service
asked by nicky 
Math
A juice mix requires the addition of 32 oz of water for every 12 oz of juice concentrate. How much juice mix may be made from 15 oz of concentrate?
asked by Hanna 
geography
Members of which economic alliance can live, work, even vote in any member nation? A)NAFTA B)OAU C)EU D)ASEAN i think its A or C am i right
asked by nicky 
Literacy
PROVIDE EXAMPLES OF SUCCESSFUL PRACTICE OF PHONICS FOR ENGLISH LANGUAGE LEARNERS AND BUILDING LANGUAGE DEVELPMENT TOWARD FLUENCY
asked by Anonymous 
Medical Assittant (college)
How do you fill out medical insurace and legers and stuff for a patient?
asked by Secoyah 
Mathtoo
what is the least common denominator of 3/5+1/3
asked by Hailey Lane 
Geography
What impact did the dissolution of the Union of Soviet Socialist Republics have? A)affected nations throughout the world B)decreased conflict in eastern Europe C)increased communism throughout the world D)none its B right
asked by nicky 
math
4 times the sum of a and b
asked by troy 
Global History
What was the role of the Nazi party? Why were Jews denied citizenship?
asked by Raquel 
trig
I don't understand how to do this type of question? If 9cos^2 theta +3cos theta=0, where 90 degrees
asked by Sandy 
PreCal
1) Solve the equation exactly for x: log3 x  log3(x3) = 2 I got 1 as an answer. Is this correct? 2) Find the cotangent of the base angle of an isosceles right triangle. sqrt3 / 2. Is this correct?
asked by Abbey 
trig 30
For csc^2 A1/cot A csc A, what is the simplest equivalent trig expression? The answers I have to choose from are sin A, cosA, tan A or csc A, but I don't know how?? csc theta= 1/sin theta but its ^2. Help please I don't even no where to begin
asked by Tye 
Math
Solve the proportion x4/9=x/18
asked by Joey 
geography
What was the Nationalists' attitude toward reform in China? They wanted foreign powers to retain spheres of influence in China. They disliked foreign interference but were influenced by Western ideas. They advocated a workingclass revolution to defeat the
asked by EMH 
Math(Please help)
1)tan 5 degrees + tan 25 degrees / 1 tan 5 degrees tan 25 degrees = sqrt 3 / 3 Am I correct? 2) Complete the identity tan^2Q  3sinQtanQsecQ = 2tan^2Q Correct?
asked by Hannah 
6th grade
in this sentence  Grandma has just made chocolate chip cookies, what part of speech is the word "just"??
asked by Lucy 
physics
Determine how much water would be present in a 10 tonne sample of lignite, has a moisture content of 65%, before crushing and drying. 10 tonnes is 10,000 kg.
asked by sasha 
chemistry
Fe2O3 + 3CO > 2Fe + 3CO2 a 16.2 L sample of CO at 1.5 atm and 200 C is combind with 15.39 g Fe2O3. how many moles of CO are available for the reaction? what is the limiting reacta? How many moles of Fe are formed?
asked by hilde 
Biology
Need help with these 14. Which of the following is present in an insect but not in arachnids? a. mandibles b. compound eyes c. jointed appendages d. segmentation 16. The exoskeleton of an insect a. does not have any muscles attached to it b. is moved by
asked by mysterychicken 
ReAdInG sTraTEGieS
what is characterization based on? Please define these preffixes and suffixes: pre,re,com,non,ish,ward,less,ment,en,ize
asked by nO oNe 
psychology
Bob Hotchkins is in the 28 percent tax bracket.A taxexempt employee benefit with a value of 500 would have a taxequivalent value of: a) $694 b) $528 c) $500 d) $360 IS C CORRECT ANSWER?THANK YOU:)))
asked by vedrana 
visual
I have to do a poster board filled with stuff that represents thanksgiving. I'm all out of ideas. What else could i possibly put on there?
asked by Anonymous 
college
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 Miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 1:20 am A.M. If train B passes the same station at 1:35 A.M., at
asked by Ed 
phi 105
Write a 200 to 300word critique of the article who_ is Holy? _As it relates to religious philosophy. Answer the following questions: oDo you believe a person's religious views should affect their treatment of others? Explain your answer.
asked by trudy 
college
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 Miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 1:20 am A.M. If train B passes the same station at 1:35 A.M., at
asked by Ed 
english
Can you writeacher please tell whether or not the following sentences are all possible?As they are not dictionary definitions, I just like to know if they are grammatically correct. 1) An external narrator stands outside the story/is a voice outside the
asked by Franco 
Math
Is there a difference between solving a system of equations by the algebraic method and the graphical method? Why or why not?
asked by Craig 
9th grade
the debate club needs $240.00 to attend a debate tournament. the club decides to sell iced tea and lemonade at baseball games. iced tea will be sold for $.50 per cup and lemonade will be sold for $.80 per cup. write the equation to find how many cups of
asked by silvia 
physics
A 770 N man stands in the middle of a frozen pond of radius 9.0 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 1.2 kg physics textbook horizontally toward the
asked by Kelsey 
Math 30 Trig
For the equation 4 cos theta  sqrt12 =0, where 0< theta < or equal 2pi determine the measure of theta. One answer I got was 2pi/3, 4pi/3 and another time it totally different 5 pi/6, 7pi/6. Are either of these right if not HELP!
asked by Rae 
ALGEBRA
If you are subtracting fractions like 8y over y4 MINUS 7y9 over 4y... will the LCD be y4? I'm stuck on this!!
asked by GGIFT 
Math(Please help)
1)tan 5 degrees + tan 25 degrees / 1 tan 5 degrees tan 25 degrees = sqrt 3 / 3 Am I correct? 2) Complete the identity tan^2Q  3sinQtanQsecQ = 2tan^2Q Correct?
asked by Hannah 
algebra
Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 80 Miles per hour and train B is traveling at 88 miles per hour. Train A passes a station at 1:20 am A.M. If train B passes the same station at 1:35 A.M., at
asked by Ed 
geography
Which of the following statements regarding European colonization of Southeast Asia is not correct? The Europeans cared little about existing ethnic boundaries and drew up boundaries for their own profit. Boundaries created by the European colonists
asked by EMH 
chemistry
in a vessel, 0.6 mol Ba(NO3)2 and .3 mol H3PO4 are combined w deionized water to a final vol of 2 L. 3Ba(NO3)2 + 2H3PO4 > Ba3(PO4)2 + 6HNO3 1. Calclate mass of Ba(PO4)2 formed 2. calcualate pH of HN03 3. What the concentation in mol/L of the nitrate ion
asked by im stressed! 
Physical Science
A 9Volt battery is used to charge a 280 mF capacitor over a 81 Ohms resistance. How long will it take for the capacitor to reach 75% of its maximum charge? What formula is relevant?
asked by Stephanie 
algebra
there are 9 subjects, how many schedules of 5 classes are possible?
asked by diane 
Physics
Tarzan swings on a 27.0 m long vine initially inclined at an angle of 33.0° with the vertical. (a) What is his speed at the bottom of the swing if he starts from rest? (b) What is his speed at the bottom of the swing if he pushes off with a speed of 3.00
asked by Kelsey 
science
the first manned rocket was built in what state
asked by terry morgan 
english
Has any one of you ever been criticized at a point in your life? If you have then how has it felt? Do you take criticism to be your weakness or strength.
asked by Angel 
English
I forgot to include the following statements I need to prepare for tomorrow. Thank you very much for your last corrections writeacher! 1)An omniscient narrator has an unlimited point of view OR He tells the story from an unlimited point of view. An
asked by Franco 
geography
Which of the following statements regarding European colonization of Southeast Asia is not correct? The Europeans cared little about existing ethnic boundaries and drew up boundaries for their own profit. Boundaries created by the European colonists
asked by EMH 
computer science
write a program that calculates a customer's monthly bill. it should input customer name, which package the customer has purchased, and how many hours were used. it should then create a bill that includes the input informtion and the total amount due. the
asked by jay 
physics
how to see if the barber has cut your hair properly at the back?
asked by joshua 
Managerial Finance
Jefferson Products, Inc., is considering purchasing a new automatic press break, which costs $300,000 including installation and shipping. The machine is expected to generate net cash inflows of $80,000 per year for 10 years. At the end of 10 years, the
asked by Gary 
physics
Two blocks, A and B (with mass 50 kg and 100 kg, respectively), are connected by a string. (one mass is on the incline, the other is hanging from the pullye) The pulley is frictionless and of negligible mass. The coefficient of kinetic friction between
asked by Kelsey 
Math 6th
Why do eskimos wash their clothes out tide? (can only be 10 letters)
asked by Fiona 
Chemistry
I've got the specific heat of a metal for three trials. t1= .186 j/gdegrees C t2= .178 j/gdegrees C t3=.128j/gdegrees C the mean of the specific heat is .164 j/gdegrees C we're supposed to find which metal it is from a "CRC" handbook. I've tried and can't
asked by Abdullah 
Intro to algebra
2 + 5(x  9) = 18 what does X equal?
asked by samantha 
pre algebra
Solve the equation 0.1 / 48 = x / 960
asked by Sydnee 
computer science
write a program that asks for the starting time and minutes of the call, and displays the charges. the program should ask for the time to be entered as a floatingpoint number in the form HH.MM. for example, 07:00 hours will be entered as 07.00, and 16:28
asked by josh 
Calculus
Find constants a,b and c such that the graph of f(x)=x^3+ax^2+bx+c will increase to the point (3,18), decrease to the point (1,14) and then continue increasing.
asked by Sarah 
chemistry
in an experiment a sample of hydrocarbon was analyzed. The sample contained6 g of carbon and 1.344 g Hydrogen. a) whats the empirical formula? the density of hydrocarbon at 25 C and 1.09 atm is 1.96 g/L b.) whats the molar mass of the hydrocarbon? c) whats
asked by hilde 
Math116
Solve by elimination 5r3s=13 3r+5s=69
asked by Rissa 
2nd grade
2nd grade math measurement
asked by alexis 
chemistry
liquid heptane C7H16 is completely combusted to produce CO2 and H2O: C7H16 + 11O2 > 7CO2 + 8H2O the heat combustion for one mole of C7H16 is 4.85*10^3 CO2 heat of comb. = 393.5 H2O h of c= 285.8 a) calc. the vale of heat of cumbustion for C7H16 in
asked by hilde 
Travel and Tourism
I have to do an assignment for Daytona Beach and I just mentioned why one would want to visit the city. Now, my teacher said, "You may also include other information on the economy." Should I mention Daytona's economy and if so, I would like to know what
asked by AL 87 
algebra
(3xa)/6=2
asked by Anonymous 
Physics
A skier of mass 76 kg is pulled up a slope by a motordriven cable. (a) How much work is required to pull him 40 m up a 30° slope (assumed frictionless) at a constant speed of 2.5 m/s? J I know that the answer to the first problem is 14896Joules, but I do
asked by Kelsey 
Math  Calculus
Show that the equation log y = 1.54  .008x  .658 log x is equivalent to y = 34.7 (1.0186)^(x) * x^(.658)
asked by Alex 
rotations
If the coefficient of static friction between tires and pavement is 0.7, calculate the minimum torque that must be applied to the 63cmdiameter tire of a 925kg automobile in order to "lay rubber" (make the sheels spin, slipping as the car accelerates).
asked by Anonymous 
algebra
The speed of train A is 6 mph slower than the speed of train B. Train A travels 230 miles in the same time it takes train B to travel 260 miles. Find the speed of each train?
asked by kathy 
algebra
The OfficeJet printer can copy Maria's dissertation in 18 min. The LaserJet printer can copy the same documents in 14 min. If the two machines work together, how long would they take to copy the dissertation?
asked by kathy 
computer science
a bank charges $10 per month plus the following check fees for a commercial checking account: $.10 each for fewer than 20 checks $.08 each for 2039 checks $.06 each for 4059 checks &.04 each for 60 or more checks write a program that asks for the number
asked by josh 
algebra
Find all numbers for which the rational expression is undifined 8/8y+7
asked by kathy 
Works Cited
I copied a photo off a website, but it has no author. Should I mention the site only for my Works Cited page?
asked by AL 87 
physics
A sample of anthracite has a moisture content of 5% when mined and an energy density of 35 kJg1 when completely dried. Assuming that during combustion, the temperature of the water in the undried coal is raised from 20.0oC to 100.oC, and then vaporized
asked by k 
science
what would happen if there were no decomposers in an ecosystem?
asked by priscilla Perez 
Literacy
provide examples of successful practices of pnonics for English Language Learners and building language development toward fluency
asked by Anonymous 
english
I need to write a sentence using the words: fingernails,trees, when,fill,for,homework.The words HAVE to stay in th same order,and you can't change thier tenses. Also a sentence with these words in this order:Laughed,teeth,fighting,to, still,not,
asked by amy 
Algebra 2
2e^x  3 =1 I got x= .6931 is this right?
asked by Ana 
Math
Ted put several different integers in order from least to greatest. He then put the same integers in order from greatest to least. Both times the same n umber was third in order.
asked by Riley 
rotations
A force FT is applied to a cord wrapped around a pulley with moment of inertia I = 0.435 kg·m2 and radius R0 = 33.0 cm. (See the figure.) There is a frictional torque τfr at the axle of 1.10 m·N. Suppose the force FT is given by the relation FT = 4.00t
asked by Anonymous 
Chemistry/Physics
"Colbalt60 is a radioactive isotope used to treat cancers of the brain and other tissues. A gamma ray emitted by an atom of this isotope has an energy of 1.33 MeV (million electron volts; 1 eV = 1.602*10^19 J). What is the frequency (in Hz) and
asked by Stuck 
calculus
Find the direction of A= I did arctan (12/5) and added 180 because x was negative and got 105.13 degrees. I missed the question on the test though. What did I do wrong?
asked by Jake 
math
A graphics designer wants to use a starshaped polygon with 10 points and a point angle of 12 degrees. What should be the dent angle of this polygon?
asked by meghan 
chemistry
Identify the quantity that is calculated y dividing the molar mass of an element by Avogadro's number. I don't get this question..?
asked by Astrid 
math
Give the dimensions of a picture frame that is a golden rectangle.
asked by meghan 
math
solve 2/3 + 4/6
asked by destiny 
Math
Three questions, what is 7 3/10  4 4/5? 1 5/9 x 2 1/7? 12 divided by 1/3? How do you solve them?
asked by Scottland 
Science (Ecology)
I need to search for an organization that works toward Water Development, other than World Water. I have to include what it does, countries of operation and funding
asked by ... 
statistics
if the mean of a set of data is 23.00, and 12.60 has a zscore of 1.30, then what is the standard deviation?
asked by Anonymous 
Math 30
If cos theta = sin theta,then sin^2 theta is what?
asked by Juliet 
classroom instruction
different approaches you may use for teaching controversial versus noncontroversial subjects. Identify the subjects and provide a specific example of each type of instruction.
asked by scooby 
trig 30
If cos^2 theta 6 sin 2 theta =0, one value of theta is a)0 degrees b) 90 degrees c)180 degrees or D)255 degrees. Please show me how to do it and not just give answer cause I have two more questions that are similar. Thanks so much.
asked by Ray 
Math
If I have ((square root of 13)+(6))^2 would it be factored as ((square root of 13)+(6))((square root of 13)(6)) or ((square root of 13)+(6))((square root of 13)+(6)) ?
asked by Karissa 
child care management
One reason early childhood education centers have become increasingly important providers of health education is that A.schools are more sanitary than 70percent of home environments. B. younger, healthier teachers and classroom aides have emereged. c.
asked by Barb 
french
How do you differentiate the prepositions for bodies of water. I know seas are feminine and oceans are masculine, but what prepostions do you use?
asked by sidhant 
Chemistry
In stoichiometry, chemists are mainly concerned with a. types of bonds found in compounds b. energy changes occuring in chemical reactions c. mass relationships in chemical reactions d. speed with which chemical reactions occur i thought c?
asked by Ana 
Algebra
There are 357 seniors in Harris High School. The ratio of boys to girls is 7:10. How many boys are in the senior class?
asked by in need of help 
Chemistry
How many grams of iron ion are in 11 grams of K3Fe(C2O4)3?
asked by Tiffany 
Chemistry
How many moles of water can be made from 4 moles of oxygen gas and 16 moles of hydrogen gas? What is the Limiting Reagent?
asked by Fred 
Chemistry
How many moles of water can be made from 4 moles of oxygen gas and 16 moles of hydrogen gas? What is the Limiting Reagent?
asked by Fred 
Physical Science
Two parallel transmission wires are laid between electrical towers. The distance between towers is 200 m, while the separation between the parallel wires is only 2.5 m. If the wires carry each a current of 1000 A, the magnitude of the force between the
asked by Stephanie 
math 116
After solving a system of linear equations, how can you check your answer to determine whether it is correct? Demonstrate the process of checking an answer with an example.
asked by earl 
math
point c (2,1) is the midpoint of line segment ab. Find the coordinates of points a and b if they are both on axes. explain and justify your reasoning
asked by john 
Chemistry
Suppose you want a mixture that contains 2.5 grams of iron ion and three times as many moles of oxalate ion as moles of iron. If the iron comes from iron(iii)chloride and the oxalate ion from K2C2O4, how many grams of each of the compounds should you
asked by Tiffany 
topic
Help!!! what is the purpose of cultural celebrations? why do people bring thier cultuarl celbrations and festivals to new countries?
asked by Aime 
math
The volume of a rectangular prism is 2x^3+5x^2+x2. The height of the prism is 2x1, and the length of the prism is x+2. Find the width of the prism.
asked by kev 
math 156
Describe two different ways that you could represent the number 0.80.
asked by monica 
12th grade math
What is the distance between the origin and the point (5, 12)? If necessary, round your answer to two decimal places.
asked by shelby 
classroom instruction
Teachers do need to establish ground rules about discussion: students should learn to listen politely to each other, and to agree to differ on occasion. Teachers can model calm and polite behavior, without giving in to irrationality. It is important to
asked by scooby 
chemistry
Assume you are performing the calibration step of Experiment 8 and you begin with 50 g of water at 20 oC and 50 g of water at 80 oC. After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment,
asked by allie 
Physics
Find the orbital speed of an ice cube in the rings of Saturn, if the mass of Saturn is 5.67 × 1026 kg and the rings have an average radius of 100,000 km.
asked by ne 
Writing
Okay, I'm back. :) This is long, sorry! Here is the prompt: Explore the role of women in Archaic Greek society as presented in the literature examined in class. **You might consider how women were viewed relative to men, how they interacted with men, how
asked by Claire 
PreCal
1)tan 5 degrees + tan 25 degrees / 1 tan 5 degrees tan 25 degrees = sqrt 3 / 3 Am I correct? 2) Complete the identity tan^2Q  3sinQtanQsecQ = 2tan^2Q Correct?
asked by Hannah 
Chem
How would increasing the volume of the reaction vessel affect these equilibria. You don't have to tell me the answers, but can you please explain to me how I get the answer. a) NH4Cl(solid) NH3(gas) + HCL(gas) b) N2(gas) + O2(gas) 2NO(gas)
asked by Sammy 
chemistry
What volume of 0.123 M K3PO4 is required to react with 60 mL of 0.862 M MgCl2 according to the equation 2K3PO4+3MgCl2> Mg3(PO4)2+6KCl Answer in units of mL.
asked by Steven