
Chem
During your lab , you are provided with a stock antibody solution (Ab) that has a concentration of 400 ug/ul . you are provided with 10 ul( amount of stock antibody ) and 90 ul( amount of buffer ) . find the final dilution factor and the final Ab
asked by Maya on October 15, 2015 
Statistics
Suppose a bag contains 7 red chips, 8 black chips, and 3 green chips. You draw two chips (without replacement) from the bag. Find the probability that you drew a red chip ﬁrst and then a black chip second.
asked by Savannah on April 30, 2010 
Statistics
Please can some one help me with the following: A fisherman finds that approximately 17% of all his fish go bad by the time he takes them to the market. The fisherman catches 1,000 fish. A. How many will go bad by the time he takes them to the market? B.
asked by Alia on December 25, 2012 
math
A number m is formed by writing all the prime numbers between 0 and 10 in an ascending order. Another number n is formed by writing all the square numbers between 0 and 10 in a descending order. (a) Find m  n; (b) Express (m  n) as a product of its prime
asked by kd on October 31, 2018 
MATH
100 bushels of corn are divided among 100 men, women, and children. Men receive 3 bushels each, women 2 bushels and children 1/2 bushel each. How can the bushels be distributed? is there more than one solution? if so, find the other solutions.
asked by Maggie on September 15, 2009 
math
a box contains seven red marbles, five green marbles & eight blue marble. a marble is drawn at random & is replaced. a second marble is then drawn from ther jar. find the probabilty that the first marble is red & second is green
asked by thomas on March 17, 2016 
Algebra
A tourist traveled on a motorboat against the current for 25 km. And then returned back on a raft. In the boat the tourist traveled for 10 hours less than on the raft. Find the speed of the current if the speed of the motorboat in still water is 12
asked by Andrew on March 22, 2016 
Maths
Really really need some help here., There was an I.T. Fair. 2/9 of the visitors were children. There were 4000 more adults than children. The ratio of boys to the number of girls was 3:5. The ratio of number of men to number of women was 3:1. Find the
asked by J.Sarah on October 7, 2014 
Statistics
Please can some one help me with the following: A fisherman finds that approximately 17% of all his fish go bad by the time he takes them to the market. The fisherman catches 1,000 fish. A. How many will go bad by the time he takes them to the market? B.
asked by Alia on December 26, 2012 
Physics
A converging lens (f = 14.6 cm) is located 39.0 cm to the left of a diverging lens (f = 4.57 cm). A postage stamp is placed 34.2 cm to the left of the converging lens. (a) Locate the final image of the stamp relative to the diverging lens. (b) Find the
asked by Beth on July 14, 2012 
the big idea of energy KS3
what is the big idea of energy? To A. Einstein, it was that Energy and Mass are equivalent, and that the sum total of both, with a factor called entropy, is constant in the universe. what is the big idea of energy i need help on finding out what the big
asked by blue babe on October 22, 2006 
AP Physics: shot projectile??
The cannon on a pirate ships shoots cannon balls with a speed of 350 m/s (the muzzle velocity). The cannon can be adjusted to shoot at any elevation above the horizontal. The barrel is 2m long and the mass is 5 kg. Ignoring air resistance and assuming the
asked by Tyger2020 on September 5, 2017 
Physics
The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5). (a) What is its molecular mass (in atomic mass units)? 294.13 u (b) What is the mass (in kg) of an aspartame molecule? kg I was able to find the mass units but I'm having
asked by Will on April 27, 2008 
Statistics
A bag contains 5 blue candies and 6 green candies. You randomly pick a piece of candy from the bag, observe the color, then put it back in the bag. You repeat this process 5 times. Find the following probabilities (rounded to the nearest thousandths): a.)
asked by Keonn'a on October 13, 2018 
Math
Suppose a deposit of $3,500 in a savings account that paid an annual interest rate r (compounded yearly) is worth $3,910 after 2 years. Using the formula A=P(1+r)^t, we have 3,910=3,500(1+r) ^2Solve for r to find the annual interest rate (to the nearest
asked by Keonn'a on November 24, 2018 
Physics
How do I solve this problem? The answers were given. Two point charges are separated by 25.0 cm. Find the net electric field these charges produce at: (a) point A (Ans: 8740 N/C, to the right) (b) point B (Ans: 6540 N/C, to the right) (c) What would be the
asked by hana on September 25, 2019 
math
i don't get 2 use the rate 380 miles in 5 hours 2 find the unknown number for each equivelent rate round to the nearset tenth I don't get your question. What "equivalent rates" are you talking about? 380 miles in 5 hours is an average speed of 76 miles per
asked by fre on April 15, 2007 
Grade 8 prealgebra
Michael wants to rent a car on his vacation. The rental fee is 60 dollars per day plus a refueling charge of $40. He has at most 400.00 to spend. The inequality 60d +40
asked by Mark on November 4, 2017 
Statistics/Probability
Each day a bakery delivers the same number of loaves of bread to local shop on the corner. On average the shop sells 75% of loaves. Assuming that the number of loaves sold per day has binomial distribution with a standard deviation of 9. Find the number of
asked by Koylar on July 17, 2014 
Algebra
A can of soda is placed inside a cooler. As the soda cools, its temperature T(x) in degrees Celsius is given by the following exponential function, where is the number of minutes since the can was placed in the cooler. T(x)=22+44e^0.03x Find the initial
asked by Jessica on June 15, 2011 
help!
How are physical characteristics combined with behavioral characteristics by northern mammals to conserve heat during extreme periods? http://en.wikipedia.org/wiki/Hibernation http://en.wikipedia.org/wiki/Estivation In addition to the excellent information
asked by help! on August 12, 2006 
Calc AB
Remember that f(x) must be onetoone (only one yvalue for each xvalue) over the domain where f –1(x)is defined as a function. So, in some cases you must restrict the domain of f(x) so that it's onetoone. There might be more than one section of
asked by Thomas on April 9, 2015 
Mechanics for Alevel
An object of mass 50kg rests on a rough plane inclined at an angle z to the horizontal. It is supported in this position by a light string parallel to the plane which is attached to the object and fixed to a point at the top of the plane. The string has a
asked by Bob on April 5, 2012 
physics
A solid sphere of uniform density starts from rest and rolls without slipping down an inclined plane with angle θ = 30o. The sphere has mass M = 8 kg and radius R = 0.19 m . The coefficient of static friction between the sphere and the plane is μ = 0.64.
asked by stewart on November 6, 2014 
Physics
I have some questions regarding motion problems. If I have a ball at initial velocity of 50m/s at 35 degree angle, to find horizontal and vertical components, I do the following: Vertical is 50(sin35)=28.68rounded to 29 Horizontal = 50 (cos
asked by Katherine on October 8, 2010 
physics
A cylindrical rod( length L, radius R and density d) is dipped vertically in to a liquid. the rod is connected by a wire to a balance that measures the force to lift the rod. the contact angle between rod and liquid is θ. If rod is partially immersed so
asked by kinjal on March 6, 2011 
statistics
a sample of 50 women is obtained and their heights (in inches) and pulse rates (in beats per min) are measured. the linear correlation coefficient is 0.229 and the equation of the regression line y= 17.9 +0.870x where x represents hight. the mean of the 50
asked by robin on October 22, 2013 
math  bearings
Been working on this question for a while. Have drawn a diagram (looks like a tilted trapezium, correct me if i'm wrong), but I still can't find any right angles to calculate the distance. Help would be appreciated, thanks. Question: A plane flies on a
asked by anonymous on January 12, 2018 
Algebra
The blood alcohol concentration (BAC) of a person who has been drinking is given by the following expression. Number of ounce % alcohol x 0.075 divide body weight in pounds minus hour of drinking x 0.015 In 4 hours a 220lb person has drunk 5 12 ounce beer
asked by Lisa on October 6, 2013 
AP Physics B
I'm unsure how to even start this problem or how I'm suppose to find out the distance at which destructive interference would occur... Two loudspeakers are 1.8 m apart. A person stands 3.0 m from one speaker and 3.5 m from the other. (a) What is the lowest
asked by AP Physics B on November 15, 2009 
chemistry uncertainty rule
if I want to find the uncertainty for a certain molar mass containing 4 atoms of Oxygen, do I multiply the error and the MM by 4: like this 4(15.9994 plus of minus .0003) = 63.9976 plus or minus .0012 (distribute the 4?) or follow the rules for mult. of
asked by paul on September 25, 2015 
Physics
A pilot must fly his plane to a town which is 200 km from his starting point in a direction 30 degrees N of E. He must make the trip in 1/2 hr. An 80km/h wind blows in a direction 30 degrees E of S. Find the speed of the plane relative to the ground, the
asked by Anonymous on March 1, 2008 
physics
A cylindrical rod( length L, radius R and density d) is dipped vertically in to a liquid. the rod is connected by a wire to a balance that measures the force to lift the rod. the contact angle between rod and liquid is θ. If rod is partially immersed so
asked by kinjal on March 6, 2011 
physics
A closed box is filled with dry ice at a temperature of 78.5 degree C, while the outside temperature is 21.0 degree C. The box is cubical, measuring 0.350m on a side, and the thickness of the walls is 3.00*10^2 m. In one day, 3.10*10^6 J of heat is
asked by Mirenda on February 12, 2008 
Maths
the angles of of evolution of the top of a hill from the City centres of two towns on either side of the hill are observed to be 30Â° and 60Â° respectively. if the distance of hill of the top from the city centre of first is 9 kilometre find in
asked by Angel on March 22, 2017 
maths
Starting with x0 = 0 (x0 has diagonal 0 that is smaller and towards the bottom) use the iteration formuala xn+1 = 4/ xn^2 +5 twice (for xn+1 the n+1 is smaller than x and diagonal towards the bottom also for xn^2 the n^2 is smaller than the x and diagonal
asked by supersupersuper on January 3, 2017 
Physics
A 3.30kN piano is lifted by three workers at a constant speed to an apartment 28.8 m above the street using a pulley system fastened to the roof of the building. Each worker is able to deliver 197 W of power, and the pulley system is 75.0% efficient (so
asked by Kristin on June 17, 2012 
History
I need help on how people influenced us. I am doing some history homework about the great depression (late 1920's through early 1940's) and I need some future connections like how did Duke Ellington influence us today? Or Walt Disney influence us
asked by Sam on February 20, 2013 
English
I have read an excerpt to Legendary King Arthur. I'm trying to find the theme. I am debating on either a true hero never dies, or family can not always be trusted. In the story, they say that King Arthur might rise, and they believe that he has set a good
asked by Baeler on September 30, 2016 
algebra
you want to build a playhouse for your sister in your backyard. You have the blue print which show the playhouse is 13 feet long and 12 feet wide. you want to change the dimension such that the lenght will be decreased and the width will be increased by
asked by sue on October 15, 2014 
physics
A mass of 1.00kg is dropped from a height of 80cm onto a spring, of unstretched length of 20.0cm, which is resting on the floor. It comes to rest, momentarily, at a height of 10.0cm from the floor. If we can ignore friction, find the spring constant of the
asked by Trace on November 24, 2010 
physic
Between the orbits of Mars and Jupiter, several thousand small objects called asteroids move in nearly circular orbits around the Sun. Consider an asteroid that is spherically shaped with radius r and density 3000 kg/m3 . You find yourself on the surface
asked by jose on October 10, 2015 
macroeconomics
i have a college macroeconomics question due tommorow can u help?? economy decribed as follows: C=14,000+.5(yt)40,000r I=800020,000r G=7000 NX=1800 T=8000 Y=40000 1)find a numeric equation relating planned aggregate expenditure to output and the real
asked by sam on December 11, 2007 
maximizing profit calculus
During the summer months Terry makes and sells necklaces on the beach. Last summer he sold the necklaces for $10 each and his sales averaged 20 per day. When he increased the price by $1, he found that he lost two sales per day. a. Find the demand
asked by julie on November 11, 2007 
Physics
A box starting from rest, slides down an incline which makes an angle of θ above the horizontal. The incline has a maximum height of h above the platform on which it sits which is itself H above the ground. The box leaves the end of the ramp and
asked by Chad on July 24, 2012 
Physics
A box starting from rest, slides down an incline which makes an angle of θ above the horizontal. The incline has a maximum height of h above the platform on which it sits which is itself H above the ground. The box leaves the end of the ramp and
asked by Zac on July 25, 2012 
algebra
A veterinarian uses 300 feet of chainlink fencing to enclose a rectangular region and also to subdivide the region into two smaller rectangular regions by placing a fence parallel to one of the sides, (a) Write the width w as a function of the length l. w
asked by Nate on November 4, 2014 
cellbio
How many protons are pumped into the stroma for each ATP generated during Photophosphorylation in oxygenic phototrophs? What is the maximum number of ATP molecules that can be produced in the inner membrane of the mitochondria for every one molecule of
asked by tracey on October 29, 2006 
AP Calculus AB
The fence around Wayne Manor (a rectangular plot of land) is going to be replaced. No fence will be required for the side lying along Gotham river. If the new wrought iron fence costs $12 per meter for the side parallel to the river and $4 per meter for
asked by Stephen on December 11, 2016 
Marketing
Are investment spending market tests a good strategy or a waste of time and overly cautious? I'm working on a case study and I'm having trouble picking a side to argue. The instructor wants us to decide how promotion money should be allocated in the case.
asked by Lou on November 18, 2013 
Collage Physics
n elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before
asked by Sian on March 26, 2013 
11th grade Physics
An open pipe 0.40m in length is placed vertically in a cylindrical bucket having a bottom area of 0.10 m^2. Water is poured into the bucket until a sounding tuning fork of frequency 440 Hz, placed over the pipe, produces resonance. Find the mass of water
asked by Garry on November 2, 2010 
College Algebra
If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in takehome pay, then the amount you earned before the
asked by Nancy on April 18, 2011 
Finance
Currently you own a portfolio comprised of the following three securities. How much of the riskiest security should you sell and replace with riskfree securities if you want your portfolio beta to equal 90 percent of the market beta? Stock Value/Beta A
asked by Billy on December 7, 2015 
Calculus
A girls throws a tennis ball straight into the air with a velocity of 64 feet/sec. If acceleration due to gravity is 32 ft/sec2, how many seconds after it leaves the girl's hand will it take the ball to reach its highest point? Assume the position at time
asked by Kait on February 27, 2018 
College Algebra
If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in takehome pay, then the amount you earned before the
asked by Nancy on April 18, 2011 
Collage Physics
An elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before
asked by Sian on March 26, 2013 
chem
One atmospheric pressure is that which will support a column of mercury 760.0 mm high. Show that 1 atm equals 1.013 x 10^5 N/m^2. Take the density of Hg to be 13.60 g/cm^3 and the gravitational constant to be 9.80 m/s^2. (You may find unit analysis
asked by Chris on January 6, 2007 
chemistry
What mass in grams of potassium hydroxide is cntained in 500 mL of solution that has a pH of 11.5? For Further Reading chemistry  DrBob222, Sunday, April 6, 2008 at 12:09am pH = 11.5 pOH = 14  11.5 = 2.5 pOH = log(OH^) ] 2.5 (OH^) = ?? KOH ==> K^+ +
asked by Sarah on April 6, 2008 
Finance
Currently you own a portfolio comprised of the following three securities. How much of the riskiest security should you sell and replace with riskfree securities if you want your portfolio beta to equal 90 percent of the market beta? Stock Value/Beta A
asked by Billy on December 6, 2015 
engineering physical
An elevator with a man inside, of gross mass 500KG, starts moving upwards with a costant acceleration and acquires a velocity os 2m/s after travelling a distance os 3m.Find the pull in the cables during the accelerated motion. If the elevator, before
asked by Sian on March 26, 2013 
Financial Literacy
There are no answer choices it's a crossword puzzle. Money that helps students go to college; ____________ When colleges help a student find a job it's called ______ Money that is given by businesses and private organizations to help students go to
asked by Beyblade Burst is Awesome on April 11, 2018 
general
Can you list me what are the animals of the black forest ???? please Thanx http://www.google.com/search?q=schwarzwald+animals&rls=com.microsoft:enus:IESearchBox&ie=UTF8&oe=UTF8&sourceid=ie7&rlz=1I7SUNA You will find many different animals named in the
asked by AMY on March 19, 2007 
physics
A physicist, upon awaking one morning to find his stove out of order, decides to boil the water for his wife's coffee by shaking it in a thermos flask. Suppose that he uses 520 cm3 of tap water at 56oF, that the water falls 1.35 ft each shake, and that the
asked by lizzy on April 23, 2008 
English
1. Search the following topics on the Internet, and then fulfill/do the project. Write the addresses of foreign shopping sites after you find them. Chosse the items you want to buy and write down the names and prices. On which item did you spend the most?
asked by John on September 1, 2009 
PreCalculus
I'm having trouble with this question. The number of horsepower H required to overcome wind drag on a certain automobile is approximated by: H(x)= 0.002(x)^2 + 0.005(x)  0.029, [10 is less then/equal to (x) is less then/equal to 100]. Where x is the
asked by Sam on February 8, 2011 
Chemistry
The muchabused drug cocaine is an alkaloid. Alkaloids are noted for their bitter taste, an indication their basic properties. Cocaine C17H21O4N, is soluble in water the the extent of 0.17g/100 mL solution, and a saturated solution has a PH = 10.08. What
asked by Sev on August 9, 2009 
College Algebra
If 24% of your monthly pay is withheld for federal income taxes and another 6% is withheld for Social Security, state income tax, and other miscellaneous items, leaving you with $989.50 a month in takehome pay, then the amount you earned before the
asked by Nancy on April 18, 2011 
Physics
A solid bar of length L = 1.30 m has a mass m1 = 0.893 kg. The bar is fastened by a pivot at one end to a wall which is at an angle è = 33.0 ° with respect to the horizontal. The bar is held horizontal by a vertical cord that is fastened to the bar at a
asked by Tessa on April 26, 2010 
English
Sorry, I included the wrong post. I still have a few doubts on the following sentences. 1) The traffic isn't very heavy. 2) A security officer will control (check?) you for metal. 3) Get on the plane (not in), find your seat and wait for your flight
asked by Henry2 on December 1, 2011 
Precalc
The figure shows a 10 x 10 square centered at the origin. The darkershaded square is the image of this square, dilated by a factor of 0.8 and rotated about the origin by exactly the number of degrees, , so that its corners touch the sides of the parent
asked by Grace on January 19, 2012 
math Subtraction equation
Please help me understanding this Aparasailer is attached by cable to a boat, she wear catches air and raises her into the air when the boat slows down to turn back towards the beach the parasailer chute catches less air and dip 25 meters. She must decent
asked by BJ on December 4, 2014 
Fermats Little Theorem
Good morning, Just working through an example but ive gotten stuck and need some help. So find the least residue of 8^123 Mod 61 So 8^60 = 1 (mod 61) 8^120 = (8^60)^2 = 1^2 = 1 (mod 61) 123 = 2*60+3 So 8^2*60+3 = (8^60)^2 x 8^3 = 1^2 x 8^3 = 1 x 512 = 512
asked by Mat on October 15, 2016 
Chemistry
"Determine the volume of a 0.925M K2Cr2O7 solution required to completely react with 5.28g of Cu." My attempted method for solving was to convert the 5.28g of Cu to moles, find moles of K2Cr2O7 using the mole to mole ratio, and then use M=mol/L to solve
asked by Jamie on March 26, 2014 
Calculus
An aquarium is to be constructed to hold 2160 in3. The base is to made of slate and the sides of glass. If slate costs 5 times as much as the glass per sq in, find the dimensions that will minimize the cost of constructing the aquarium. I started going
asked by Patrick on November 28, 2014 
chemistry
hey everyone out there im new to this forum so please be nice. hahaha :D as the subject says this is about ozone cracking. well my friend is doing a research assignment, and shes talking about ozone cracking. she has done your homework and found out that
asked by Anonymous on October 16, 2008 
Math (Business)
Find the value of the ordinary annuity at the end of the indicated time period. The payment R, frequency of deposits m (which is the same as the frequency of compounding), annual interest rate r, and time period t are given. amount 1,000;
asked by Braxton on March 1, 2017 
physics
A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic headon collision with a second
asked by s on December 7, 2011 
math
1.Partition a rectangle into rows and columns of samesize squares and count to find the total number of them. 2.Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third
asked by kodak on March 31, 2014 
Trigonometry
Find cotangent theta given that cosecant theta equals 3.5891420 and theta is in the third quadrant. I was using the trig identity 1+cot^2theta=csc^2theta I wanted to isolate cotangent so I plugged in 1/sin (3.5891420) and then squared my answer. I then
asked by Maddy on February 9, 2015 
Physics
The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 46 m in a straight line, reaching a final speed of 83 km/h. (a) Determine the cheetah's average acceleration during the
asked by Claire on September 14, 2012 
Math(HELP!)
A farmer has 120 feet of fencing to enclose a rectangular plot for some of his animals. One side of the area borders on a barn. a.) If the farmer does not fence the side along the barn, find the length and width of the plot that will maximize the area? b.)
asked by Amy on October 15, 2015 
Math PLEASE help
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))
asked by Krista on May 30, 2013 
physics
3 kg block (block A) is released from rest at the top of a 20 m long frictionless ramp that is 5 m high. At the same time, an identical block (block B) is released next to the ramp so that it drops straight down the same 5 m. Find the values for each of
asked by Katelyn on October 25, 2016 
Math Question
Hi! We asked this question last night but we got confused. Find the amount in the account if $2000 is invested at 6.125%,compounded semianually, for 2 years. I worked this problem and Lydia worked this problem. I came up with the answer $2,252.50 However,
asked by Logan and Lydia on February 27, 2007 
physics
A cue ball (mass = 0.140 kg) is at rest on a frictionless pool table. The ball is hit dead center by a pool stick which applies an impulse of +1.60 N·s to the ball. The ball then slides along the table and makes an elastic headon collision with a second
asked by Anonymous on December 7, 2011 
Calculus1
You are designing a 1000 cubic cm closed cylindrical can with radius r and height h. Assume that there is no waste in cutting the aluminum for the side of the can, but that the circular top and bottom are cut from square sheets of aluminum 2r by 2r. Find
asked by ACDub on April 9, 2014 
math/science
I have a right angled triangle hyp=10,and angle=60deg.I need to find how much magnetic field in Tesla passes through the hyp(ie a wire in magnetic field) at this angle.I have tried 10*(sin60deg)=8.66T.My tutor says its 10*(cos60 deg)=5T.The field comes
asked by kyley on February 20, 2009 
physics
In the figure below, the fresh water behind a reservoir dam has depth D = 13 m. A horizontal pipe 6.0 cm in diameter passes through the dam at depth d = 6.0 m. A plug secures the pipe opening. (a) Find the magnitude of the frictional force between plug and
asked by rock on January 28, 2011 
physics
A 25kg child on a 2m long swing is released from rest when the swing supports make an angle of 30 degrees with the vertical. (a) Neglecting friction, find the child's speed at the lowest position. (b) If the speed of the child at the lowest position is
asked by Anonymous on October 28, 2007 
biology
a biologist prepared a strip of agar (a gelatin like substance) as shown in the figure below. at position 7, he placed a concentrated sample of amino acid A and at position 1, a concentrated sample of enzyme E. E is known to catalyze the conversion of A
asked by jessica cook on January 23, 2011 
Math
Does studying for an exam pay off? The number of hours studied, x, is compared with the exam grade received, y. x 7 7 5 5 7 y 95 90 75 85 95 (a) Complete the preliminary calculations: SS(x), SS(y), and SS(xy). Incorrect: Your answer is incorrect. . (SS(x))
asked by Krista on May 30, 2013 
chem
When 3.517 grams of a hydrocarbon, CxHy, were burned in a combustion analysis apparatus, 11.59 grams of CO2 and 3.164 grams of H2O were produced. In a separate experiment, the molar mass of the compound was found to be 40.06 g/mol. Determine the empirical
asked by jillian on February 19, 2017 
Algebra 1
Emily rows six miles downstream in 1 hour and her friend Ashley,rowing 1 mile per hour faster,completes the return trip in 2 hours. 1.Find the speed of the current(c) and each girls rowing speed. 2.If Emily and Ashley were rowing separately,who would
asked by Jane on May 7, 2013 
year 8 maths
Find the amount of the following foreign currencies (to 2 decimal places) that can be bought with 250 Singapore dollars. The sterling pound There is a chart and the pound sells at 2,552,0 for 1 Singapore dollar. The pound is bought at 2,578.0. I did
asked by Maria Chiara on December 11, 2009 
math
Suppose there are 100 rabbits on an island and that the rabbit population can triple every halfyear. Write an equation you could use to find the number of rabbits, R, after t, years. Using your equation, determine the amount of rabbits on the island in
asked by Monica on October 1, 2013 
PreCalculus
Draw the picture and find the area of the parcel of land. Circle your to partial areas and your total area. You start herman a corn and walk 300 yards due north. Then, you turn N 63 degrees E and walk 260 yards. Then, you turn S 55 degrees E and walk 240
asked by Ash on December 3, 2015 
biology
a biologist prepared a strip of agar (a gelatin like substance) as shown in the figure below. at position 7, he placed a concentrated sample of amino acid A and at position 1, a concentrated sample of enzyme E. E is known to catalyze the conversion of A
asked by stella on January 24, 2015 
Physics
A 1.00 g mass hangs by a string next to an identical stationary mass. When both masses are given identical positive charges, the hanging charge swings out 3.00 cm from the vertical so that its string makes an angle of 30.0 degrees with the vertical. Find
asked by Katie on June 13, 2007 
Trigonometry
Thank you for the respond!! I appreciate it. But it says on my paper 360 rev/min = 360 (2pi/60) rad/s = 12pi rad/s and so D= 2r = 2(s/theta) = 2(40/12pi) ft = 20/3pi ft = 2.12 ft should be the answer :( I have 2 more if that's alright. A point on the rim
asked by Geee on November 10, 2017
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