Questions Asked on
July 22, 2010

Chemistry
Below are the formulas of some hydrates. what is the mole ratio of salt to water? Hydrate Na2SO4.10H2O Co(NO3)2.6H2O Mo(NO3)2.5H2O CaSO4.2H2O (CaSO4)2.H2) Thankk you
asked by Rose 
Statistics
The Academy of Orthopedic Surgeons states that 80% of women wear shoes that are too small for their feet. A researcher wants to be 98% confident that this proportion is within 3% of the true proportion. How large a sample is necessary?
asked by Anonymous 
Chemistry
A student worked with a sample of ZnSO4.7H2O, what is the stoichiometric ratio of salt to water?
asked by Rose 
Chemistry
mole ratio of Na2SO4.10H2O
asked by Rose 
Chemistry
What is the name of the following compounds; Hg2(BrO2)2 Au(OCN)3 AuSCN Ni3(AsO4)2 Thank you
asked by Ana 
Physics
Figure 747 shows a cold package of hot dogs sliding rightward across a frictionless floor through a distance d = 21.5 cm while three forces are applied to it. Two of the forces are horizontal and have the magnitudes F1 = 5.00 N and F2 = 1.00 N; the third
asked by Carla 
Physics
A 2.9 kg body is at rest on a frictionless horizontal air track when a horizontal force F acting in the positive direction of an x axis along the track is applied to the body. A stroboscopic graph of the position of the body as it slides to the right is
asked by Dave 
Chemistry
If your sample contained a volatitle impurity, what value would be in error, the weight of the anhydrous salt or the weight of the water? Please explain. Thank you
asked by Ana 
literature
Can anyone find me the real title of this poem by Rabindranath Tagore? "Thou tanglest my heart in a hundred nooses of love, What is this thy play? It is but a little feeble life Why so many bonds to bind it? At every turn and every moment Thou winnest my
asked by klarmaesen 
social studies
Which of the following statements is NOT true in regard to Brazil's interior plateau? (A) It experiences periods of drought. (B) Its soil is often devastated by heavy rains that cannot penetrate the dry, hard ground. (C) Poverty is prevalent in this
asked by Priya 
Math
How many different rectangles can you draw that have a perimeter of 48cm? whole numbers only.
asked by Julie 
geometry
Find the perimeter and area of a right triangle if one leg measures 24ft and the other leg measures 70ft. Shoe step by step please.
asked by lonnese 
Probability
A number cube, numbered 1 through 6, is rolled once. What is the probability of rolling an even number that is not prime? 1/6 1/3 1/2 2/3
asked by Ross 
math/everything
do you know any website that can help me with all this 1.Language Arts, Writing, in two parts. •Part 1: Organization, Sentence Structure, Usage, and Mechanics •Part 2: Essay 2.Language Arts, Reading •Poetry •Drama and •Fiction •Nonfiction
asked by monica 
Physics
A machine carries a 4.5 kg package from an initial position of di = (0.50 m) + (0.75 m) + (0.20 m) at t = 0 to a final position of df = (7.60 m) + (12.0 m) + (7.30 m) at t = 11 s. The constant force applied by the machine on the package is F = (2.00 N) +
asked by Ben 
Physics
An iceboat is at rest on a frictionless frozen lake when a sudden wind exerts a constant force of 220 N, toward east, on the boat. due to the angle of the sail, the wind causes the boat to slide in a staraight line for a distance of 8.5 m in a direction
asked by Eliza 
PreCalc
Write an algebraic expression that is equivalent to the expression (Sketch right triangle) sec[arcsin(x1)]
asked by LaTidra 
Chemistry
This is a balancing eqn Im finding rather tricky: ___Fe(NH4)2(SO4)2 6H2O + ___ H2C2O4 + ___K2C2O4 + ___ H2O2 > ___K5Fe1(C2O2)2 3H2O + ___(NH4)2(SO4) + ___H2SO4 + ___ H2O remember H2O2, an oxidizing agent, was used in synthesis, so youll nee to do a
asked by Tokey 
Chemistry
Write formulas for the following compounds containing complex anions. rubidium hyponitrite magnesium bromite
asked by Ana 
MTH233/statistics UOP
Find one quantitative and one qualitative data set from a reliable source and determine the best way to present that data graphically. Show your graph and explain your reasoning for choosing this presentation method. When might the reported median of data
asked by sue 
MTH233/statistics UOP
Industry 1980 1997 Agriculture 290 727 Mining 994 586 Construction 4,473 5,513 Manufacturing 21,165 18,633 Transportation 4,623 6,247 Trade 20,258 28,813 Finance and Insurance 5,295 7,367 Services 17,186 37,380 • • The table above shows the number of
asked by sue 
11th Grade Physics
A rocket is fired vertically from the ground with a resultant vertical acceleration of 10ms^2. The fuel is finished in 1 minute and it continues to move up. What is the maximum height reached? Solve it!!! N Please solve it as i've to copy it in my
asked by Akashdeep Singh 
Chemistry
How many calories of heat are needed to raise 10 g water from 20 to 21 degree celcius
asked by Megan 
Trig
Even if you have no idea what on earth any of this stuff is but have a vast knowledge in complex number system you might be able to help me as this is what I believe is preventing me from making sense of this stuff... Ok I'm trying to understand how you
asked by Kate 
Math
If 3(y+8)/2y = 9, what is the value of y?
asked by Anonymous 
chemistry
Discuss the spontaneity of an electrochemical reaction in terms of its standard emf (E¨¬cell)
asked by Jin 
Physics
A machine carries a 3.0 kg package from an initial position of di = (0.50 m) + (0.75 m) + (0.20 m) at t = 0 to a final position of df = (7.30 m) + (11.0 m) + (7.20 m) at t = 14 s. The constant force applied by the machine on the package is F = (2.00 N) +
asked by Gina 
physics
A wheel of mass 0.52kg and radius 46cm is spinning with an angular velocity of 23rad/s. You exert a force F on the wheel, the wheel comes to a stop after 1/4 turn. What is F.
asked by meldoy 
math 115
I am going to try to underline this problem: 21(9) _________ 21(21) is this 12/0 undefined?
asked by barb 
math
solve 9x276x+6=20x28 x+?
asked by Laura 
Calculus 1
Find the equlibrium point for each pair demand and supply function. Demand:q = 880030x; supply:q = 7000+ 15x
asked by Blake 
algebra 2
The length and width of a rectangle are in the ratio of 5:12. If the rectangle has an area of 240 square centimeters, what is the length, in centimeters, of its diagonal?
asked by jenny 
Math
A computer program is designed so that, when a number is entered, the computer output is obtained by multiplying the number by 3 and then subtracting 4 from the product. If the output that results from entering a number x is then entered, which expression
asked by Anonymous 
MAT115
Identify the base in the following application: The sales tax rate is 8%. If you pay a tax of $2.50 on an item, what is the selling price. I don't know what the base is or how to solve the problem.
asked by barb 
us history vietnam war
How did President Kennedy respond to the news that the Viet Cong were winning their war against the noncommunist government of South Vietnam? A. Kennedy sent combat troops to fight the Viet Cong. B. Kennedy ordered the U.S. Air Force to bomb North
asked by jenny 
Physics
(a) At a certain instant, a particlelike object is acted on by a force F = (3.0 N)  (1.0 N) + (8.0 N) while the object's velocity is v =  (2.0 m/s) + (4.0 m/s) . What is the instantaneous rate at which the force does work on the object? W (b) At some
asked by Frankie 
MAT115
Identify the "Base" in the following application: The sales tax rate is 8&. If you pay a tax of $2.50 on a purchased item, What is its selling price? Should this question be changed to a statement to make it easier to identify the base? For example: If I
asked by barb 
english
why does arthur first pull the sword from the stone
asked by blah 
math115
46. Perform the indicated operation. 21(9) divided by 21(21)
asked by barb 
statistic math
it is known that 5% of all parts manufactured at Plant F are defective. If 30 part are randomly selected what is the probability that all 30 parts are not defective and what is the probability that at least one of the 30 parts is defective?
asked by alexis 
statistics
find the sample variance s2 for the following sample data. Round to the nearest hundred x: 23 17 12 35 29
asked by Anonymous 
chemistry
mole ratio of CaSO4.2H2O
asked by Rose 
social studies
All of the following statements about Brazil's economy are true except: (A) Because of the development of gasohol, Brazil no longer has to import expensive foreign oil. (B) Industrial developments have destroyed the middle class. (C) Jobs in service
asked by Priya 
arithmetic
put these sequences in standard form arithmetic a1=a6=11
asked by jonay 
Civics
Basically we have to relpy to these questions .. and i need help ... pls give me some ideas or you opinion on each of these questions ... thx (: 1. do you think political parties effectively represent the canadian population Make refrence to :Political
asked by Sizy 
Shakespeare
I am trying to find an example of a paraphrase in Romeo and Juliet. I know that it is a restatement by another character but can not find where this occurs. Would someone please help me? Thank YOu.
asked by Ian 
Chem
Hello, In the addition of water to an alkene (e.g. ethylene) what is the electrophile? Well I thought its the hydrogen cation from the water. Since electrophiles are electron poor molecules, having a tendency for more electrons. But then it asks what
asked by Nat 
Data and Statistics
Calculate the z score for an ACT score of 12, a mean of 20, and the standard deviation is 5.
asked by Beverly 
Data and statistics
Calculate the z score for an SAT Verbal score of 510, mean of 500, and standard deviation of 100.
asked by Beverly 
health
how does performance management relate to customer outcomes?
asked by cortez 
calculus
find the domain of f(x)=5/¡Ì(x24)
asked by ong 
calculus
find the domain of f(x)=5/¡Ì(x24) and also range
asked by ong 
English
Write five sentences about the role of education in successful financial planning, in which you correctly use a different verb tense in each sentence
asked by Kim 
Physics
Two vectors are given by a = 3.7i + 6.9j, and b = 1.9i + 4.7j. Find (b) a·b = (c) (a + b)·b = (d) the component of a in the direction of b = .
asked by Abigail 
Calculus
If anyone can please help me solve this math problem! PLEASE!! Here is the link: img63.imageshack.us/img63/9355/img0002gp.jpg
asked by Paul 
math
4/5 + (3/4) how do I work this
asked by barb 
chemistry
mole ratio of (CaSO4)2.H2O
asked by Rose 
Physics
I have to design a procedure which will allow me to calculate the applied force(thrust) of a stomp rocket. We are allowed to use tools to find measurements. So far, I have calculated the height that the rocket reached (22.5) m using trig. (right angle
asked by Mackenzie 
Physics
I have to design a procedure which allows me to calculate the applied rocket thrust force of a stomp rocket. The only materials I am allowed are stop watches, rulers, measuring tape, protractors and the stomp rocket. Basically it all has to be done
asked by Mackenzie 
sum
The sum of the first X consecutive even numbers is 930. Find X.
asked by William 
Math
If 1  x  2x  3x = 6x  1, what is the value of x?
asked by Anonymous 
math
x is a perfect square and x+5 is also a perfect square and x5 is a perfect square.what is the value of x?
asked by priya 
math
If f is a real valued funtion of a real variable defined by: x^2  3x + 2 x>  x^2 +3x + 2 using the maximal domain convention. Determine whether f is injective and/or surjective and find its range. If f is not inective, demonstrate this by
asked by ramdrop 
Math ( Algebra 1 )
Two rectangles have the same width. The length of one is 2 feet longer than the width. The length of the other is 4 feet longer than the width. The larger rectangle has 8 more square feet than the smaller. What is the width of the rectangles?
asked by Tia 
Physic
Geophysicist have estimated that the temperature at the center of the earth’s core is 5000⁰C (or more), while the temperature of the sun’s core is about 15 million K. Express both of these temperature in Fahrenheit degrees.
asked by Paul 
Probability
If you toss 4 coins, what is the probability of getting exactly 1 head and 3 tails? 1/16 1/4 3/8 1/2
asked by David 
math
Corrine has 3 quarters, 7 dimes, 6 nickels, and 4 pennies in her pocket. If one coin falls out, what is the probability that it will not be worth more than $0.10? 3/20 7/20 1/2 17/20
asked by David 
math
7. A bag contains 2 red cubes, 3 blue cubes, and 5 green cubes. If a cube is removed and replaced in the bag and another is drawn, what is the probability that both are green? 1/4 3/8 2/5 1/2
asked by Ross 
catering
what is a silence pad?
asked by linda 
MAT115
The square root of 21 is between what two whole numbers? I got 4 and 5 , is this correct?
asked by barb 
business
you are a manager in large global manufacturing and services organizationI I need help
asked by Teresa 
math
What is the product of 4x – 3 and x + 8?
asked by elijah branton 
MTH233/statistics UOP
A manager has portioned the company’s sales into six districts: North, East, South, Midwest, West and International. What graph or table would you use to make the points below in a presentation for management? 1. A figure that shows the slightly more
asked by sue 
MTH233/statistics UOP
• Best Practices has the following caveats: • • Use a bar chart to show the frequencies of a categorical variable. • • Use a pie chart to show the proportions of a categorical variable. • • Preserve the ordering of an ordinal variable. •
asked by sue 
chemistry
What solid is formed upon addition of silver nitrate to a solution of cobalt chloride?
asked by Kathleen 
Math115
evaluate[24][22] the brackets are supposed to be "bars". Is this the same as saying 2422? do the bars mean the "absolute value" of the number? If so, is the answer 2?
asked by barb 
Physics
"A wave travels from one medium to another, and the wavelength decreases. What happens to the velocity and the frequency?" I know that frequency will remain the same, because it is controlled only by the source. But does the velocity decrease? According to
asked by Stuck 
medical terminology
what is the principal procedures and services of the dermatology department?
asked by Paula 
history
do you think president jahnspon had good reasons to escalate the u.s war effort?
asked by emilee 
business 219
lisa is considering a wireless
asked by Anonymous 
mathalgebra please help!
Please me find the points to graph for the follow equations. x+3y0
asked by Michelle 
calculus
how many years will it take for $17 thousand to grow to $91 thousand when invested at an annual rate of 6% if interest is compounded monthly?
asked by sp 
calculus
2P=Pe^(0.16t)
asked by sp 
mathcomputer
Please help me do this question!!!!! (C): 116.98GB Assuming a disk should never get more than 85% full, and assuming you were generating 200MB of new data per week, at what point would you need to add another hard disk to this PC? How long until you have
asked by jenni 
research paper
Is fast food a good topic for research paper?
asked by sha 
cultral diversty
List two to three characteristics of Orientalism. How may Orientalism and prejudice contribute to hate crimes against these groups?
asked by magail 
government
within the past two years, what are some of the changes the United States has made to policies concerning the treatment of Muslim and Arabic members of society
asked by Anonymous 
government
List two to three characteristics of Orientalism. How may Orientalism and prejudice contribute to hate crimes against these groups.
asked by Anonymous 
cultral diversty
What may individuals do to promote tolerance and reduce prejudice in their towns and cities? For ideas,
asked by magail 
Math
P = 5b/c^2, what is a value of c when p = 9 and b = 20?
asked by Anonymous 
physics
The heating value of a Gas is 39MJm3 a) If 4.5m3 of the gas is burned how much energy is released? b) If the gas is burned in 5 minutes what is the power? c) If the burning occurs in an engine that converts the energy to forward motion and the engine is
asked by kirsten 
Data and statistics
If a student had a z score of 2.5 for IQ, whar is his actual IQ? The IQ mean is 100, and standard deviation is 15.
asked by Beverly 
science
does light have mass?
asked by carl 
Math
Factor: X⁸ + 2x©ùy©ù + 9y⁸
asked by Ella 
math
X⁸ + 2 x©ùy©ù + 9 y⁸
asked by cosca 
math
Factor: x^8 + 2x^4y^4 + 9y^8
asked by cosca 
math
Factor: a^4 + b^4 + c^2  2(a^2 b^2 + a^2 c + b^2 c)
asked by cosca 
math
Prove that if p, q, r and s are odd integers, then the equation x^10 + px^9  qx^7 + rx^4  s = 0 has no integer roots.
asked by cosca 
math
Prove that 20^22  17^22 + 4^33  1 is divisible by 174.
asked by cosca 
chemistry
what are the examples of suspension
asked by juliet 
pe
what are the different postural disorders?
asked by uriel 
Math
I am very confused with rounding off numbers. How do you know how many zeroes shall you put when you retain?
asked by Alyssa 
math
What is the difference between Gauss Jordan method and the Echelon method
asked by Holly 
math
The volume of a cone is three hundred cubic kilometers. If the radius of the base is 9 kilometers, what is the height of the cone? Use three point one four for pi. Show your work and round to the nearest tenth.
asked by matt 
Economics and Social Issues
Apartheid in Africa was dismantled in a relatively speaking peaceful way. What other ethnic conflicts do you know about that were resolved peacefully in the developing world? Any Examples?
asked by Sue Ann 
Math
How does one determine if a polynomial is the difference of two squares?
asked by Lynn