Questions Asked on
August 20, 2011

Chem
Consider the balanced chemical equation: 3Sr(OH)2(aq) + 2H3PO4(aq) → Sr3(PO4)2(s) + 6H2O(l). How many moles of Sr(OH)2 remain if 0.10 mol of H3PO4 react with 0.40 mol of Sr(OH)2?
asked by Mike 
geometry
The line QS bisects
asked by britany 
trig
A ferris wheel with a diameter of 100 feet rotates at a constant rate of 4 revolutions per minute. Let the center of the ferris wheel be at the origin. 1. Each of the ferris wheel's cars travels around a cirlce. a) Write an equation of the circle where x
asked by Chris 
physics
A 88kg astronaut and a 1200kg satellite are at rest relative to the space shuttle. The astronaut pushes on the satellite, giving it a speed of 0.25m/s directly away from the shuttle. Sevenandahalf seconds later the astronaut comes into contact with
asked by ash 
physics
a ball is dropped from the height. if it takes 0.2 sec. to cross the last 6 m before hitting the ground find the ht. from which it was dropped
asked by Anonymous 
COM/156
I have a rough draft of an essay that I need revised and checked for comma usage. Would someone be able to look my essay over? To be honest I do not have another person to read over my work.
asked by blake 
math modeling
Person A opens an IRA at age 25, contributes $2000 per year for 10 years, but makes no additional contributions thereafter. Person B waits until age 35 to open an IRA and contributes $2000 per years for 30 years. There is no initial investment in either
asked by fazilah edwin 
Math
Prove the identity: cosx/1tanx +sinx/1cotx
asked by Aliya 
statitics
Assume the body temperatures of healthy adults are normally distributed with a mean of 98.20 °F and a standard deviation of 0.62 °F (based on data from the University of Maryland researchers). a. If you have a body temperature of 99.00 °F, what is your
asked by ann 
Math
A ramp 10 feet in length rises to a loading Platform that is 4 feet off the ground. What is the angle of elevation of the ramp in degrees? Do I use the law of cosines? When I do though I'm getting a little confused what to do.
asked by Jason 
Physics
a 35 g ice cube at 0.0 C is added to 110 g of water in a 62 g aluminium cup. The cup and the water have an initial temperature of 23 C . Find the equilibrium temperature of this system? in Celsius ,, I've been trying to solve this for 2 hours now , and I
asked by AfterLife 
statistics
Assume that a set of test scores is normally distributed with a mean of 100 and a standard deviation of 20. Use the 689599.7 rule to find the following quantities: Suggest you make a drawing and label first… a. Percentage of scores less than 100 b.
asked by ann 
Statistics
Construct the probability distribution for the value of a 2card hand dealt from a standard deck of 52 cards (all face cards have a value of 10 and an ace has a value of 11). a) What is the probability of being dealt a hand that adds up to 21? b) What is
asked by Carlos 
CHEMISTRY
At 285mmHg +25 degrees celsius,a gas sample has a volume of 2270ml. what is the final pressure in mmHg at a volume of 1250ml and a temperature od 175 degrees celsius?
asked by TERI 
math
Explain how you could use the Pythagorean Theorem to find the distance between the points the coordinate pair negative four comma negative three and the coordinate pair one comma one. Find the distance. You can type carat two to indicate "squared" and
asked by drea 
bio
If the frequency of one allele in a population is 0.7, what is the frequency of the alternate allele? A) 0.30 B) 0.21 C) 0.42 D) 0.09 E) 0.49
asked by Anonymous 
Finance
Benson Incorporated has bonds with the following features: Par value of 1,000, maturity of 12 years, and a coupon rate of 8%.The yield to maturity is 10%. Pleases determine if the bond sells for for a premium, par, or discount and explain your answer.
asked by Mybenz 
kkkkk
Find the amount of compound interest earned in an account that opens with $27,000, earns 4.6% interest compounded daily, and is held for 15 years. Assume 360 days in a year. (Round your answer to the nearest cent.
asked by kamilya 
trigonometry
sin2 =2tan cos
asked by soge 
business and administrative communication
which audience has political,social or economic power,pays close attention to the transaction between you and the primary sudience and my base future actions on its evaluation of your message
asked by leticiea 
trigonometry
sin2 =2tan cos
asked by soge 
Statistics
A new screening test for a disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% (240) and 70%, (280) respectively. Four hundred (400) people are screened at a clinic during the first year the new
asked by Genevieve 
english
1) i don't if these entences are good. The poet tells his audience to not mourn after his death, because he is going to his permanent home, heaven. 2) Thus, the poet is conceptualizing that even if you die you would always meet your family and friends in
asked by pria 
bio
the biome with the fewest seasonal changes is the
asked by toba 
math
three boxes are in a room. You know that one contains apples, one centains oranges, and one contains a mixture of apples and oranges, but you don't know the contents of the specific boxes. The boxes are labeled "apples","oranges", and "apples and oranges",
asked by Audrey 
business
Chapter 14 Case – “HewittPackard Company” Need ideas for case study paper, any ideas?
asked by WS 
computers
can we create two variables of same name and of different datatype?
asked by prasanna 
gp school
calculate the molarity of a solution when 5g of urea is dissolved in 600ml of water
asked by shiksha 
math
in the triangle ABC,AB=3 BC =4 CA=2.D is the point on CA such that AD bisects angle A.M is the mid point of CA.F is a point on AB such that angle AFD=90. DF and am meet at the point E.Then AF:FB=?,DE:EF=?
asked by montu yadav 
mathsP5
There are 2 packets of flour, Y & Z.The ratio of the mass of Y to Z is 4:1. If 26g is added to Z,the ratio of the mass of Y to Z is 7:5. Find the mass of the 2 packets at first. Pls show how to solve by model method as i have not learnt algebra. tks
asked by joel 
math
Prove that (secx+tanx)^2=1+sinx/1sinx Thanks in advance.
asked by Aliya 
Math
If the bisector of the vertical angle of the triangle bisects the base prove that the triangle is isosceles?
asked by Syed 
stat
A company’s CEO wanted to estimate the percentage of defective product per shipment. In a sample containing 500 products, he found 30 defective products. (a) Find a 98% confidence interval for the true proportion of defective product. Show your
asked by me,me 
Statistics
The notion of statistical significance is frequently used in business to distinguish between true and spurious betweengroup differences (such as a difference between the response rates to two different promotions). Hence, when the difference between the
asked by George 
math
What happens to the mean, median and mode for the data shown if the outlier is eliminated? 8 3 5 3 23 4 7
asked by drea 
statistics
1. Which of the following statements are correct? a. A normal distribution is any distribution that is not unusual. (True/False) b. The graph of a normal distribution is bellshaped. (True/False) c. If a population has a normal distribution, the mean and
asked by ann 
math
is 49 a perfect square? can you please explain.
asked by drea 
Statistic
Indicate whether the given statement could apply to the data set consisting of 1000 values that are all different. 1. The 29% is greater then the 30 th percentile. 2. The median is greater then the first quartile. 3. The third quartile is greater then the
asked by Sonia 
human service
Can you tell me if I am correct or not. Arbitration is used to help resolve a issue between two parties. The parties can submit their dispute to an third party and the arbitrator will consider all the facts and render a judgement? If I am correct, can you
asked by patiance 
geometry
simplify completely 2 (2x + y) 7x + 2y?
asked by guadalupe 
math
2. Maryam pays $3000 on the 30th day of a $7,000, 120day, and 8% loan. a. What is the adjusted principal after the partial payment is made if ordinary interest is applied? (5 points) Answer: b. What is the adjusted balance due at maturity? (5 points)
asked by Anonymous 
english
I have a feeling that my sentences are very bad. can you please correct them. the three senetnces are based on the poem "crossing thebar" by alfred tennyson. 1) The reason why the ship comes out from the boundless deep is because the ship symbolically
asked by pria 
Math
Write the following without negative exponents: (a^1 + b^1)^1
asked by Jenna 
chemistry
1.what is the volume of NaCl in cubic cm and cubic nm if the Length is 0.563 nm? 2. the density of NaCl is 2.17 g/cm. What is the Mass? 3. Each repeating unit is composed of 4 NaCl molecules. What is the Mass of 1 NaCl molecule?
asked by andi 
trig
(sec theta + cosec theta) (sin theta +cos theta) = 2 + sec theta cosec theta
asked by Jancy 
math
1. Prove the identity:cosx/1tanx+sinx/1cotx=sinx+cosx 2.Prove the identity: cosx/1+sinx+1+sinx/cosx=2secx
asked by Aliya 
Maths
60% of the people on a bus are male. After 1/3 of the males alighted from the bus, what percentage of the people left on the bus are females?
asked by jo 
maths
there are 15 guppies, 14 angelfish and 5 goldfish in a tank. how many guppies and goldfish must be added so that the ratio of guppies to angelfish to goldfish is 9:7:5
asked by jo 
Am. History
Immigration was a hot topic during this time period (18201850), and it remains a hot topic today. In what ways does immigration continue to shape our nation? can anyone "get the ball rolling" for me. not looking for an answer, just a starting point. maybe
asked by Stacy 
math
The domain of g(f(x)) where f(x)=x+4 and g(x)=sqrt(x) is?
asked by Kathy 
HCA/210
i need help with a 200300 word on the rising health care costs
asked by lisa 
science
I HAVE WRITTEN A MITIGATION PLAN AND WANTED TO KNOW IF SOMEONE WOULD READ IT A GIVE ME FEED BACK AS TO WHAT I CAN CHANGE Energy Conservation Mitigation Plan Humans are not making energy conservation a priority. Spending a day without energy will be a hard
asked by girl 
Biology
Hypothesis on finding if the dissappearance of a particular fish species from a lake in the northwestern united states is due to acid rain resulting from industrial air pollution
asked by Betty 
statsitsc
b. The graph of a normal distribution is bellshaped. (True/False)
asked by ann 
english
how can i make this sentece better If so the boat figuratively seems to be the transportation to heaven. Given that death is experienced alone the next line, “one clear call for me”, endorses that the poet was depicting the scene of passing away and
asked by sam 
math
divide 44/16.5
asked by kathy 
social psychology
Does a person's selfefficacy changes as their personalities develop and they learn new information. Does failure necessarily reflect on the people we are. Does being motivated to learn new things and do better in all aspects of our lives helps our
asked by Sharon 
algebra
How to put this math problem in power point presentation. Evaluate both expressions by using R= 120 and s = 200 : Find the LCD of the terms in the equation.
asked by faith 
geography
explain indias drianage system
asked by shravani 
Maths
There are 2 packets of flour, Y & Z.The ratio of the mass of Y to Z is 4:1. If 26g is added to Z,the ratio of the mass of Y to Z is 7:5. Find the mass of the 2 packets at first.
asked by aggie 
social psychology
Explain how a college education will change or modify your selfschema.
asked by Sharon 
chemistry
why we just see a light spot of benzaldehyde after tlc in iodine chamber which soon vanishes and does not appear again?
asked by manoj 
trigonometry
sin2 =2tan cos
asked by soge 
math
The number of real solutions to the system of equations y=2sin(x^2) and y=x^3x is a. 0 b. 1 c. 2 d. 3 Please show your work! Thank you!
asked by Kathy 
Maths
What is the ratio of boys to girlr if there are 6 boys and 12 girls in a class
asked by Anonymous 
Math
Simifly the ezpression 8d^2 + 3d + 7d^2  6d
asked by Sarah 
statistics
A normal distribution is any distribution that is not unusual. (True/False)
asked by ann 
math
divide 44/16.5
asked by kathy 
algebra
x = 3 a solution for 3x – 1 = 6? Write yes or no.
asked by chuck 
alebra
Solve using the addition principle. x + 1 = 7
asked by chuck 
science
chemical formula
asked by apoorva 
Maths
There are 2 packets of flour, Y & Z.The ratio of the mass of Y to Z is 4:1. If 26g is added to Z,the ratio of the mass of Y to Z is 7:5. Find the mass of the 2 packets at first.
asked by aggie 
Algebra
Help! sin B = ( 5 square root 2)/ (5 square root 3), find the value of csc B
asked by lizzie 
chemistry
what weight of sodium hydroxide(NaOH) is required to make 20ml of 5% (w/v) sodium hydroxide?
asked by 97896 
algebra
simplify the expression (x+3y5z)(x2y+3z)
asked by Kenny 
math
a single card is drawn from a deck. find the probability of selecting a 10 or a diamond.
asked by harry 
science
Author Donald Kennedy thinks it is possible to find environmental solutions that are riskfree.
asked by tory 
German
In any subordinate clause does the word always have to be in the end?
asked by Sia 
statistics
Catriona buys a car costing £3500. There is a reduction of onefifth of the price. She pays threeeights of the reduced price as deposit. How much is the deposit?
asked by drakeagle