Questions Asked on
September 29, 2011

Chemistry
Calculate the volume of 2 M acetic acid needed to prepare 50 ml of 0.1 M acetate buffer.
asked by Allie 
Physics
A soccer ball is kicked with an initial horizonal velocity of 18 m/s and an initial vertical velocity of 18 m/s. 1) What is the initial speed of the ball? 2)What is the initial angle of the ball with respect to the ground? 3)What is the maximum height the
asked by Aziz 
Biology
Animal cells can take up sucrose against its concentration gradient using a Na+/sucrose symporter. Indicate if the following statements are true or false. 1. In the Na+/sucrose symporter Na+ is also moving against its concentration gradient. False 2. For
asked by Cady 
Science
A crate of mass 2000 kg is hanging from a crane at the end of a cable 12 m long. If we attach a horizontal rope to this crate and gradually apply a pull of 1800 N, what angle will the cable finally make with the vertical?
asked by May 
Chemestry
What property of paradichlorobenzene may convince you that it is an ingredient in mothballs?
asked by Helena 
hsl
i can play tomarrow...this is write sentence or not
asked by nazo 
Calculus
Can someone tell me how to do these? Estimate INT from 0 to 1 2/(1+x^2)dx by subdividing the interval into 8 parts, using (i) the left Riemann sum: INT from 0 to 1 2/(1+x^2)dx (ii) the right Riemann sum: INT from 0 to 1 2/(1+x^2)dx (iii) the trapezoid rule
asked by Jason 
physics
how to calculate the vibration when the car hits a bump?
asked by nunu 
C#
Write a program that displays your initials in a pattern on the screen. Compose each initial with six lines of smaller initials, as the following example: J FFFFFF J F J FFF J F J J F JJJJJJ F
asked by Mike 
physics
Harry accidentally falls out of a helicopter that is traveling at 80 m/s. He plunges into a swimming pool 4 seconds later. Assuming no air resistance, what was the horizontal distance between Harry and the swimming pool when he fell from the helicopter?
asked by Abby 
Free Enterprise
Explain whether you think the supply of the following goods is elastic or inelastic, and why. (a)Hotel Rooms (b)Taxi Rides (c)Photographs
asked by CP 
english/usgov URGENT
can you guys help me write a conclusion for this and also help me elaborate my essay better. I've worked so hard and it's due tomorrow Politicians can't agree on how to create more jobs and this is a major problem. The U.S. economy is in trouble because it
asked by Harold 
engineering science
A ramjet is to propel an aircraft at Mach 3 at high altitude where the ambient pressure is 8.5 kPaand the ambient temperature Tnode is 220 K. The turbine inlet temperature T is 2540 K. If all components of the engine are ideal  that is, frictionless 
asked by david 
physics
If a race car completes a 2.8 mi oval track in 41 s, what is its average speed? Answer in units of mi/h
asked by Kate 
Chemistry
I'm supposed to do this for an organic chemistry prelab. I've read my books and tried Googling everything possible, but I still don't know how to set this up. Please help! The solubility of a certain compound in icecold water is 0.18g in 100 mL. Its
asked by Katy 
AP European History
Is the term renaissance a valid concept for a distinct period in European History or was the renaissance just a continuation of the Late Middle Ages? Support your answer.
asked by Keegan 
science
a man drops a stone in a well and hears the sound of the stone hitting the water after 4 sec calculate the depth of the well ( assuming the speed of sound in the well is 364 m\s )
asked by meera 
6th grade math
i have to make a conjecture on if there is more or less than 50 numbers that can be written as product of 3 digit numbers w/o using the number 1 more than once as a factor. Example: 10 can be 1*2*5 and 24 can be 2*3*4
asked by STUDENT 
English
Mnemonics of word "teacher" is. My teacher is absent because she has ache. I want mnemonics of elephant,and often
asked by Bilal 
Geometry
need to find x x+153=130+2x+23
asked by Janet 
math
can anyone help me with this problem Divide (35b^3+18b^2+32b+41)
asked by Lois 
Chemistry
The solubility of salicilyc acid in water at 20C is .2g in 100mL. The solubility is salicilyc acid in boiling water is 6.67g in 100mL. Calculate the minimum volume of water needed to recrystallize .550g of crude salicilyc acid.
asked by Jessie 
word problem
The number whose digits have a sum the same as the digits in 36. This number is less than 50 and greater than 36.
asked by bea 
English
how to write a newspaper review?
asked by Jessica 
Physics
John weighs 660 N, and Marcia weighs 486 N. Estimate the gravitational force between them when they are 0.47 m apart. I've tried finding the mass of john and marcia by doing m=F*a (F being their weight in Newtons and a being 9.8 m/s^2). When I found their
asked by Kellie 
math/science
Please can you explain how to do the following: a) a nonsmoker with low blood pressure has a plasma chloesterol concentration of 5mmol per litre. Over a period of time this concentration increases to 8mmol per litre. By how many times has this risk of
asked by peter 
MBA
Analyze the following portfolios performance using Jensen index, Treynor index and Sharpe index versus the market: Observed Rate of Return Beta (β) Residual Variance Magic fund 15% 1.5 0.02 Shanti fund 10% 0.5 0.00 Riskfree rate of interest is 50%,
asked by lakshmi 
science
A cannon ball is fired straight up into the air at a speed of 80 ft/sec from a height of 2 ft. a)when will be the cannon ball be 98 feet in the air. b) when will the cannon ball hit the ground?
asked by muthu 
Cemistry
When a 0.952 g sample of an organic compound containing C, H,and O is burned completely in oxygen, 1.35 g of CO2 and0.826 g of H2O are produced. What is the empiricalformula of the compound?
asked by Eddy 
physics
Measuring in foot pounds of toque what pressure can the world’s strongest man exert by pulling on an object?
asked by Phill 
statistics
AB ia a uniform rod of length 120 cm and weight 18kg.wt it rotates about a hinge at its end A. its end B is pulled by a light string whose other end is tied to point C over A. the rod is in equilibrium when it inclines to the horizontal at 30degree if the
asked by Anonymous 
physics
A car starts from rest and travels for 5.5 s with a uniform deceleration of 1.3 m/s 2 . What is the ﬁnal velocity of the car? Answer in units of m/s
asked by izzy 
science
nonvascular plants water passes from what
asked by lynn 
capitalization and punctuation
I manage to be satisfy by doing my homework.
asked by sharon 
english CITING
hey i tried to do the following hope there correct this time my work is the last the upper from my work is the original one that i need to correct Source C: An article in the Chicago Tribune entitled “Happiness is Contagious, New Study Finds.” It was
asked by Anonymous 
EnglishAuthor's Purpose
5. Thomas Jefferson and Thomas Paine shared a similar purpose for writing. What was their purpose? (2 points) to express and reflect to persuade to inform to invite Thomas Jefferson wrote the Declaration of Independance and Thomas Paine wrote the
asked by Amy 
spanish
what goes in the blank son or estan aquellos profesores _______ muy inteligentes.
asked by kaylee 
alcohol counselor
Select one core function you have learned about so far and describe at least three global criteria. Explain why you believe these criteria are important elements in the substance abuse counseling process.
asked by cecilia henderson 
physics
why does saturn have smaller density than earth and mars which is smaller than saturn?
asked by anonymous 
COMPUTER
Hexadecimal to decimal (4D.C8)
asked by Sia 
social studies
what happens on sadie hawkins day
asked by jennifer white 
Algebra I
How do you solve the following literal equation: xp + yp = z
asked by Jane 
math
Find the volume generated by rotating the area between y = cos( 3 x ) and the x axis from x = 0 to x = π/ 12 around the x axis
asked by sk 
physics
a tugboat is pulling a ship backwards with the chandalier at a 2 degree angle. how fast is ship going?
asked by frank 
algebra
The value of a particular car dropped from 25,000 in may 21,000 in october.find the rate of change in value
asked by babygirl 
Chemistry
At 298 K, nitrous acid (HNO2) dissociates in water with a Ka of 0.00071. a)Calculate G° for the dissociation of HNO2. (Use Ka to calculate the answer.) b) Calculate G if [H3O+] = 0.00070 M, [NO2  ] = 0.16 M, and [HNO2 ] = 0.21 M.
asked by Heather 
CHEM
The equilibrium constant for the reaction below is Kc = 9.1 106 at 298 K. 2 Fe3+(aq) + Hg22+(aq) 2 Fe2+(aq) + 2 Hg2+(aq) Calculate G when [Fe3+] = 0.21 M, [Hg22+] = 0.013 M, [Fe2+] = 0.022 M, and [Hg2+] = 0.020 M.
asked by Amber 
chemistry
which is the more active metal 2Li+Cu(NO3)22LiNO3+Cu
asked by shells 
Chemistry
Calculate G° for each reaction using G°f values. MnO2(s) + 2 CO(g) Mn(s) + 2 CO2(g)
asked by Amanda 
chemistry
which is the more active metal Co+Cr(NO3)2....no reaction
asked by shells 
chemistry
what makes matter exist in three states (solid,liquid,gas)
asked by sujith 
math
simplify 20 minus 16 divided by 4 times 5 plus 10
asked by shawn 
SOCIAL STUDIES ECONOMICS 7TH GR
I need to explain the terms from an economic view rather than a political view of. But I need to show this 3 concepts of economics with just pictures and symbols that reflect how i understand the concept. I need to use minimal words. I need to make sure my
asked by MARKO 
Statics
a solid hemisphere of weight W rests in limiting equilibrium with its curved surface on a rough inclined plane and its plane face is kept horizontal by a weight W1 attached to a point in its rim. prove that the coefficient of friction is W1/√(W(W+2W1))
asked by Vasuki 
calculus
Let h(x) = ( x2 + 2 if x > 2 ��mx if x 2 (a) Find the value of m that will make h continuous everywhere. (b) Using the value of m you have found to determine limx!2 h(x)
asked by Salena 
College Math
There is a question > Write the slope intercept form of the equation for the line passing through the points (6,3) and (0,7) Now my answer started with > Slope = 73/0(6) = Slope = 2/3 Then to find the intercept > Y=mx+c 3= 2/3(6) + c c= 7 In my
asked by HM 
College Math
Another question which is confusing. The position of an object moving in a straight line is give by s=2t^23t, where is s in metres and t is the time in seconds the object has been in motion.. how long will it is take the object to move 6 meters? I first
asked by HM 
Chemistry
What is the formula mass for (NH4)3PO4
asked by Monique 
College Mathematics. 3
(3t+1)/5=(t+7)/10+(t5)/10 I solved this question through the linear equation simplification timing both sides by the least common denominator. 5 Once I did the the result was > 3t+1= 2t+14+2t10 T= 3 However the real answer is t=0 Where am I going wrong?
asked by HM 
geometry
Find if segments QU and RT are parallel and they are cut by transversal VS
asked by Anonymous 
Chemistry
What is the percent zinc in Zn(NO)3 2xZn/189.41]=34.52% am I right
asked by Monique 
ECONOMICS
Could you recommend a video for me to understand socialsm communism capitalism for 7th grader to udnerstand i need to see visual representation of each concept
asked by MARKO 
math
please give examples of working models on SAS congruence
asked by njggfg 
earth
Compared with the strength of Earth's gravity at its surface, how much weaker is gravity at a distance of 11 Earth radii from Earth's center?
asked by chris 
chemistry
If 5 g of solid sodium hydroxide is dissolved in 100 mL of water, what is the molarity of the solution in moles of NaOH/L of solution (moles/L)?
asked by Sarah 
College Math
I hope my questions are not very silly. But here is another one I want to understand. Write an equation in slopeintercept form of the line satisfying the following conditions. through (6,7); perpendicular to x=2 My answer was 7/6(X)+2 But in truth the
asked by HM 
CHEM
Calculate G° for each reaction using G°f values. MnO2(s) + 2 CO(g) Mn(s) + 2 CO2(g)
asked by Amanda 
Language arts/writing
An acrostic poem for the bill of rights?
asked by Fred 
Chemistry
Calculate the number of molecules in 3.11mol of CCL4 this is what I'm doing I got the molecular weight of CCL4 which is 181.88 Then I set it up like this 3.11 mol CCL4/ 181.88 mol CCL4 x 6.022E23 = 1.03E22 Am I right
asked by Monique 
math
Tony and Tom are brothers.This year both of their ages are prime numbers. Last year both of their ages were composite numbers. Both of their ages will be composite numbers again over the next three years. If Tony and Tom are both teenagers, how old are
asked by peter 
Physics
A 0.55 kg block slides across a tabletop with initial velocity of 3 m/s and it comes to rest in a distance of 0.53 m. Find the average friction force that retarded its motion.
asked by Anonymous 
biology
A red blood cell is placed into each of the following solutions. Indicate whether crenation, hemolysis, or neither will occur. Solution A: 3.21% (m/v) NaCl Solution B: 1.65% (m/v) glucose Solution C: distilled H2O Solution D: 6.97% (m/v) glucose Solution
asked by sol 
Algebra1
graph of two infinite lines that intersect at a point. One line is solid and goes through the points (0, 2) (negative 2, 4) and is shaded in below the line. The other line is solid, and goes through the points (0, 2) (2, 0) and is shaded in below the line.
asked by Marla 
Calculus
Let f(x)=sqrt(3+2x) f′(5)=
asked by Allison 
Calculus
If f(x)=(3)/(x^2) find f′(4).
asked by Allison 
Calculus
If f(x)=(3x)/(1+x^2) find f′(4). Use this to find the equation of the tangent line to the curve y=3x1+x2 at the point (4,0.70588). The equation of this tangent line can be written in the form y=mx+b where m is: and where b is:
asked by Allison 
algebra
x 3 6 9 12 f(x) 9 18 27 36 Does this relationship show direct linear variation?_______________ If so, what is your k value?
asked by Anonymous 
College Math
What is conditional, and identity or a contradiction ? in terms of a linear equation. Please can you give some examples
asked by HM 
Calculus
For what values of x is the tangent line of the graph of f(x)=8x3+36x2+46x−72 parallel to the line y=−2x+1.9 ? Enter the x values in order, smallest first, to 4 places of accuracy: x1= ≤ x2=
asked by Allison 
Calculus
Let f(x)=21−x^2 The slope of the tangent line to the graph of f(x) at the point (−4,5) is ______ . The equation of the tangent line to the graph of f(x) at (−4,5) is y=mx+b for m=______ and b=_______.
asked by Allison 
algebra
Please please help, this is like the only thing i am having trouble on right now, and no one my my family knows about this stuff. Any help would be great! (: x 3 6 9 12 f(x) 9 18 27 36 Does this relationship show direct linear variation?_______________ If
asked by Anonymous 
algebra
Help would be greatly appreciated!!! This gets really confusing for me. Write an inverse variation equation. If y varies inversely with x and y=2 when x=4…. a. Find K. b. Write a general equation. c. Use your equation to find y when x=8 Draw a chart to
asked by Anonymous 
algebra
Any help with this would be great! Graph this absolute value equation. x + 1  2 = y A chart has been provided for your use. x y
asked by Anonymous 
Chemistry
The solubility of a certain compound in icecold water is 0.22g in 100mL. Its solubility in hot water is 4.35g in 100mL What is the best possible percent recovery we can expect for the recrystallization of this compound in water?
asked by tom 
chemestry
a coin is composed of gold and silver. the 5.00g coin is dissolved in nitric acid and the solution treated with NaCl to precipitate out 2.35g of AgCl. Gold chlorides do not precipitate under the same conditions. What is the composition of silver (by mass)
asked by Help please! 
chemestry
the mass of CuSCN precipitate is 1.379g, what is the mass of copper in the precipitate?
asked by Help please! 
math algebra 98
a lawn is in the shape of a trapeziod with a height of 60 ft and bases of 30 ft and 170 ft. how many bags of fertilizer must be purchased to cover the lawn if each bag covers 3200 sq. ft
asked by rubirose 
Math 116AA
Solve using the multiplication method 5/6x=7/6 X=
asked by Katie A 
Math 116AA
find the slope if it exists of the line containing the pair of points (5,1)and (6,2) the slope is M= the slope is undefined Help!!!!!
asked by Katie A 
cemestry
Scientists in 1962 became very excited when they were able to create xenon tetrafluoride. Why was this an unusual feat?
asked by Anonymous 
Math 116A
Solve 7x¡Ý21 I think it is {x©¦x>or equal to 3}
asked by Katie A 
Math 116A
Solve 7x¡Ý21 I think it is {x©¦x>or equal to 3}
asked by Katie A 
Physics
An engineer needs to determine the distance across a rive whose banks are approx. parallel. Standing on one side of the bank, the engineer can see the other side. The engineer only has a 30 foot measuring tape ( which is shorter than the distance from one
asked by Janie 
Math 116a Fraction
Solve using the multiplacation method 2x>1/9 {x x } I have no clue how to do this?
asked by Katie A 
Chemistry
How many CO2 molecules can be made with 0.500 mol of oxygen atoms?
asked by Monique 
ENGLISH RIDDLE
AT TIME, I AM UNAVOIDABLE. IM THERE EARLY IN THE MORNING LATE IN THE EVENING. SOMETIMES I GO EASY ON YOU AND OTHER TIMES I MAKE YOU WISH YOU NEVER LEFT HOME. YOU TRY HARD TO IGNORE ME ONCE YOU'RE IN THE MIDST OF ME. I CAN MAKE A SANE PERSON CRAZY. I EXIST
asked by KIM 
Chemistry HELP
Calculate the number of molecules in 3.11 mol of CCL4 I got 2.88E26 am I correct
asked by Monique 
Algebra
comlete the table by continuing this relationship between x and y. x 1 2 3 4 5 y 2 2 1/2
asked by Anonymous 
Algebra
Please help me. Provide steps to arriving at the answer. Write the equation in function form. 6x3y=12
asked by TryToForgetLove 
music
an acrostic poem on rhthym
asked by Imogen 
calculus
pleeeeeeas help meeee i used an online integral calculator and got an answer which says 1/2cot(x^2) but i don't know how to get there. the problem is "integral{xcsc^2(x^2)}
asked by mo 
Calculus
Can someone explain to me how to do these? Given the following definite integral and n=4 answer the following questions. (Round your answers to six decimal places.) 1. Use the Trapezoidal Rule to approximate the definite integral. Answer: T4= 2. Use the
asked by Patrick 
chemistry
What is the heat evolved of oxalic acid if the temperature change initial is 28 degrees celcius and the final is 29 degrees celcius and the change in temperature is 1 degree celcius,what is the heat capacity of axolic acid
asked by Tebogo Maphanga 
4th grade math
Please help solved the below problem. Explain in words how to add 352 + 958. Make sure to explain regrouping, if necessary? Thanks, Stella
asked by Stella 
chemistry
With the aid of a labelled diagram,explain how molten Aluminium Oxide (bauxite) is electrolysed.
asked by Mary 
Physics
I need help figuring this out. I am asked to write about similarities of two different ways of determining the value of g. One of them is using the slope of the line, and one of them is using the average. Each method used the same L and T values.
asked by Help 
business
why have japanese car companies been so successful in the united states,germany and india?
asked by anurag 
fundamental of management
what of organization structure is best for competing in the international car war?why?
asked by anurag 
Physical Science
Alpha particle tracks through gases and thin metal foils show few deflections. What does this tell us about the atom??
asked by Brooke 
english
Although the trend is shifting, careers in science and technology continue to attract predominately men.
asked by Katy 
chemistry
A dilute aqueous solution of CaCl2 contains 0.159 grams of solute per liter of solution. It is fully dissociated. What is the osmotic pressure of the solution against a membrane at 20.0 °C?
asked by sarah 
College
My dream is to go to Harvard University. When I grow up I want to become an artist, & creative writer (like writing stories & stuff. Here are some questions I would like to ask you guys. Please answer these questions please I know I'm too young (age 12,
asked by Kim 
physics
A car (m = 1670 kg) is parked on a road that rises 10.3 ° above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires?
asked by Anonymous 
Health
20. RDAs provide 4 sets of reference values, which are guidelines that recommend amounts of nutrients and other food components, needed to prevent deficiencies, avoid toxicities, and promote best health. Myth or Fact? I say fact. 29. Which of the
asked by mysterychicken 
math
A rectangle was constructed using 24 square tiles. If you add the length and width of her rectangle together, you would get 11. What is the length and width of this rectangle?
asked by Hannah 
chemistry
Calculate the molarity (M) of Na+ in a solution prepared by adding 1.00 L of 0.800 M NaHC2O4 and 250 mL of 0.300 M NaHC2O4 . Assume volumes are additive. the answer is 0.700 but im not sure how to go about solving it please help thanks
asked by BOB 
Chemistry
When the following equation is balanced with the smallest integral coefficients, the coefficient of the HNO3 is Li2CO3(s) +HNO3(aq)  LiNO3(aq)+H2O(l)+CO2
asked by Monique 
math
1. Estimating the Temperature of a Yam Suppose you put a yam in a hot oven, maintained at a constant temperature of 200C. As the yam picks up heat from the oven, its temperature rises.16 (a) Draw a possible graph of the temperature T of the yam against
asked by Anonymous 
English
I need help with the following qestions thy have to do with Subject and Verb Recognition.It says identify the subjects of the followig sentences by underliing them once. Identify the verbs by underlining them twice. 1.Betty visited a television studio
asked by Melissa Roberge 
operations management
a manager is trying to estimate the appropriate learning curve for a certain job. the manager notes that the first four units had a total time of 30 min. which learning curve would yield approximately this result if the firs unit took 10 minutes. A) .70
asked by u of a 
Math
Four couples have purchased ticket to the school play. Their sear are next to one another in a single row. If each couple sits side by side, how many seating arrangements are possible? (I came up with 24. correct??)
asked by Monique 
algebra
The length of a certain rectangle is 4 m greater than five times it's width. What are the dimensions of the rectangle if its perimeter is 20m??? please help i have no idea how to do this!
asked by Trisha 
Calculus
An airplane is flying in still air with an airspeed of 325 miles per hour. If it is climbing at an angle of 20°, find the rate at which it is gaining altitude.
asked by Mary 
chemistry
Which of the following is a possible set of n, l, ml, and ms quantum numbers for the last electron added to form an As3+ ion? (a) 3, 1, 1, ½ (b) 4, 0, 0, ½ (c) 3, 2, 0, ½ (d) 4, 1, 1, ½ (e) 5, 0, 0, ½
asked by bob segar 
Math
Jusity 7+2x+(6)+5x
asked by Kierra 
math
A bumblebee can flap its wings 200 times per second. About how many time times can it flap in l000 min.
asked by help 
College Abstract Algebra
If H is a subgroup of G and K is a normal subgroup of G,prove that HK = KH
asked by Jackie 
Chemistry CONFUSED
Ok I'm really confused on the question I asked how many CO2 molecules can be made with 0.500 mol of oxygen atoms. Please help with setting this up
asked by Monique 
English
Can you please check the following sentences? I just want to make sure that the tense choice is correct. 1.Enter the airport and look at the departures board to check your flight number and the departure time of your flight. 2.Go to the checkin desk to
asked by Henry2 
MATH
WHAT IS THE CORRECT PROPERTY OF MATH FOR XY=YX
asked by christian 
Science
Are eukaryotic or prokaryotic cells more advanced?
asked by Need Help 
Physical science/football/algebra
suppose that Andrew is running down the field at 8 yards per second and then cuts right running 6 yards per second. He executes this maneuver in 0.5 seconds. Calculate his acceleration
asked by Mercedes 
Physical science/football/algebra
suppose that Andrew is running down the field at 8 yards per second and then cuts right running 6 yards per second. He executes this maneuver in 0.5 seconds. Calculate his acceleration
asked by Mercedes 
Physical science/football/algebra
suppose that Andrew is running down the field at 8 yards per second and then cuts right running 6 yards per second. He executes this maneuver in 0.5 seconds. Calculate his acceleration
asked by Mercedes 
physics
True or false, the acceleration of an object and the net force acting on it are proportional.
asked by Ben Oo 
English
I forgot to include the following examples.I urgently need to know if they are possible. 1) I usually ride my bike to school. My father drives his car to work. You can drive at 50 kilometers per hour on an Italian urban road. 2) You can drive at 130
asked by Henry2 
algebra
Ms. Sue thanks a ton for solveing my last problem. But now I have another one. Can you help??? "Tanya's age is ten years greater than half Aarons age. If the sum of their ages is 55, how old is Tanya? also do you think you could explain how to do this so I
asked by Trisha 
geometry
Find the perimeter of the polygon using the distance formula of Triangle ABC with vertices A(3, 5), B(3, 1), C(0, 1)
asked by fsgdfgsd 
help please :)
What is the last thing you should do before turning in your essay? A.Write the secong draft. B.proofread the essay to make it is free from errors. C.Revise and edit,changing and rearranging the content. D.All of the above. i got D what do you think ?
asked by ciara 
CHEMISTRY
Suppose that 30.0 mL of 0.20 M C6H5COO(aq) is titrated with 0.30 M KOH(aq). a) What is the initial pH of the 0.20 M C6H5COOH(aq)? b) What is the pH after the addition of 15.0 mL of 0.30 M KOH(aq)? c) What volume of 0.30 M KOH(aq) is required to reach
asked by Sarah 
math
how can you tell where the absolute value of (x^21) is differentiable?
asked by t 
Spanish Literatue for Cassie
Please refer back to your original post, which I JUST found again! http://www.jiskha.com/display.cgi?id=1317246435 Sra
asked by SraJMcGin 
psychology
12. It wasn’t a test day, there were no oral reports due, and the class was getting ready to view a video. Regardless of the relaxed nature of the class, Baxter suddenly felt his muscles tighten and his heart rate increase as if he had had a sudden
asked by lachelle 
redwine
what measures does patrick henry say the colonists have already tried in their dealings with england?
asked by rachel 
algebra
how far can you simplify7(36y)
asked by rob 
Math
y = f(x) = 5  x  3x^2 Find the yintercepts, xintercepts, and the vertex
asked by Nemo 
help please :)
All of the following statements about reading skills are true EXPECT: A.Different activites require different types of reading. B.It is not always necessary to perform a thorough reading. C.It is best to use skimming when you look for specific information.
asked by ciara 
Math
1/2z  1/4w = 1/6 1/2z + 1/4w = 1/6 Solve the system of equations algebraically.
asked by Blue 
physics
How long does it take an automobile traveling 62.0 km/h to become even with a car that is traveling in another lane at 37.5 km/h if the cars' front bumpers are initially 138 m apart? in seconds
asked by Megan 
Math
log4x^4 + log4^2 = 3 Solve the logarithmic equation.
asked by Blue 
Math
log(x+5) = log(3x+2) +1 Solve.
asked by Nemo 
chemistry
4NH3 + 5O2 → 4NO + 6H2O 2NO + O2 → 2NO2 3NO2 + H2O → 2HNO3 + NO In this process, the NO made in the last reaction is recycled back into the second reaction and used as a reactant. In the end, all of the NO produced is recycled back so that when the
asked by jane 
psychology
One common aspect of among dissociative disorders is: (a.)memory of childhood abuse. (B.)escape from an anxietyproducing situation. (C.)a painful physical symptom.(d.) departure from reality.
asked by lachelle 
chemistry
An oxalic acid solution contains the following species in varying concentrations: H2C2O4, HC2O4, C2O4^2, and H+. Which of the above four species can act only as acids, which can act only as bases, and which can act as both acids and bases?
asked by Amber 
algebra
write an equation that models the relationship between x and y. x= 1, 2, 3, 4, 5, Y= 2 21/2 31/2 4
asked by Anonymous 
math
Explain how you would use anumber line to round 148 to the nearest ten
asked by Dilyan 
math
3200000*0.064 in scientific notation
asked by Mercedes 
problem solving
place a counter on the left side,place a counter on the right side then color the middle cloud. What is a counter
asked by Jon 
math
what is 1,000m3 mean. how do it get to the answer of 96,050 x 1,000 m3.
asked by courtney 
algebra
"Tanya's age is ten years greater than half Aarons age. If the sum of their ages is 55, how old is Tanya?" can who ever solves this explain how to do it too???
asked by Trisha 
english1994m
Typical of ballad "lord randall" omits details and ends with half the strory told. do you think the young man's lover poisned him? why or why not. what other questions in regarding the plot are left unanswered? MY ANSWER: Using dialogue and passion, this
asked by Mark J 
Algebra
What is 7u+3v4 simplified using like terms
asked by Aaron 
english
in at least two well developed paragraphs, describe two events during the civil right movements that cause dreams to be deferred.you must have at least 2 evidence from 2 different documents to receive full credit. HELP!
asked by help me days left! 
College
Is Harvard is really the best college ? also what high school grades are require to get to Harvard ??? When I be a 9th grader will they prepare me for SAT ???
asked by Kim 
physics
A car travelling at a constant speed of 136 km/hr passes a tropper hidden behind a billboard. One second after the speeding car passes the billboard, the tropper sets in a chase after the car wit ha constant acceleration of 3.8 m/s^2. How far does the
asked by nikki 
astronomy
suppose the sun were twice as massive a it actually is. What would be the orbital period of a planet at a distance of 10 AU from the sun?
asked by lynn 
astronomy
Suppose the distance between two stars doubled while the mass of each star doubled as well. What would happen to the orbital period of the two stars?
asked by lynn 
English
I corrected sentence 3 as you told me. I just wanted to know if sentence 2 is possible and if "tollbooth" is used. 1) I usually ride my bike to school. My father drives his car to work. You can drive at 50 kilometers per hour on an Italian urban road. 2)
asked by Henry2 
english 301
explain how a thankless expereince is a satire. support with direct reference to the essay.
asked by high school student 
psychology
According to behavioral treatment approaches, abnormal behavior is learned through: (a.)thoughts based on the perception of events. (B.)vicarious experiences. (c.) rewards and punishments. (D.)conflict experiences in early childhood.
asked by lachelle 
astronomy
What is the wavelength of electromagnetic radiation that has a frequenc of 3 x 10 16 Hz? In what part of the spectrum does this radiation occur?
asked by lynn 
physics
Only two forces act on an object (mass = 5.27 kg), as in the drawing. Find the (a) magnitude and (b) direction (relative to the x axis) of the acceleration of the object.
asked by Anonymous 
Math
The median and mode are equal for this set of seven whole numbers: {1, 3, 4, 5, 6, 11, x}. The mean is also one of the six known members of the set. What is the value of x?
asked by Heather 
help please:)
Which one of the following statement best describes what a budget is ? A.A method of figuring out the inflation rate. B.An organized plan for spending money C.A way to keep people from really enjoying life. D.A plan for saving money. i got C what do you
asked by ciara 
math
30 minutes before the community pool closed, there were 15 swimmers in the pool . Six minutes later, there were 3 swimmers in the pool. What is the average change per minute in the number of swimmers in the pool?
asked by ginger 
Math
Determine the coordinates of the endpoint of a segment CE with one endpoint at C(3,10) and a midpoint at (1,6). Disclaimer: This is 10th grade geometry.
asked by Sahana E. 
science
which solution is made entirely of gases? cough syrup,soda,helium,or clean air.
asked by tricia 
math
A cuo is 12cm high and has a radius of 2.5 cm. What is the volume of the cup?
asked by Anonymous 
Physics
Two students are on a balcony 24.9 m above the street. One student throws a ball, b1, vertically downward at 19.6 m/s. At the same instant, the other student throws a ball, b2, vertically upward at the same speed. The second ball just misses the balcony on
asked by Chris 
physics
A golf ball with an initial angle of 35° lands exactly 218 m down the range on a level course. (a) Neglecting air friction, what initial speed would achieve this result? m/s (b) Using the speed determined in item (a), find the maximum height reached by
asked by allyson 
Chemistry
Which of these is best described as an acidbase reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH
asked by Anna 
physics
using newtons third law explain what is meant by action and reaction pairs of forcess
asked by Anonymous 
Chemistry
Which of these is best described as an acidbase reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH
asked by Anna 
Chemistry
Which of these is best described as an acidbase reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH
asked by Anna 
physics
It takes you 7.6 min to walk with an average velocity of 2.5 m/s to the north from the bus stop to the museum entrance. How far did you walk? Answer in units of m What is your direction? (multiple choice) 1. West 2. North 3. South 4. East
asked by Sam 
precalculus
the Ohio turnpike has a maximum uphill slope of 3 degrees. how long must a straight uphill segment of the road be in order to allow a vertical rise of 450 feet
asked by Anonymous 
math
A class of 25 students has 10 boys. Three boys have braces and 4 girls have braces. a) What is the ratio of boys with braces to boys in class? b) What is the ratio of girls with braces to girls in class? c) Which group has the largest ratio of students
asked by sara 
algebra
maria rented the same car twice in one month. She paid $180 the first rime for 3 days and she drove a total of 150 km. The next time, she also paid $180 and had the vehicle for only 2 day, but traveled 400 km. A. What was the cost per day. B. What was the
asked by Anonymous 
U.S HISTORY
WHAT LAWS DIRECTED TRADE BETWEEN ENGLAND AND THE COLONIES? PLZ HELP
asked by I NEED HELP 
Math
A rock is placed into a graduated cylinder containing 80 mL of water. What is the volume of the rock if the water level rises to the 120 mL level?
asked by Miracle 
math
a 4 foot by 8 foot panel, the top of wich is located 18 foot below the water line on a dam wall is subject to how much forec? ( assume the panel is oriented with the long side horizontal)
asked by Anonymous 
Chemistry
Which of these is best described as an acidbase reaction? KCl + NH4NO3 = KNO3 + NH4Cl NH3 + H2O = NH4 + OH
asked by Anna 
geometry
is it possible to draw a triangle whose sides measure 5 inches, 9 inches, and 14 inches?
asked by kelli 
math
A building is 4 feet higher than twice the height of a nearby tree. If B represents the height of the building and t represents the height of the tree,
asked by dajanai 
Finance
A state's lottery winner is promised $200,000 a year for 3 years(starting at the end of the first year). Interes rate is annually 7 percent on its fund. How much is the present value of this lottery?
asked by Anne 
Geometry
Given: angle ABD is a right angle , angle CBE is a right angle. Prove: angle ABC is congruent angle DBE
asked by Sam 
trig
All solutions in interval [0,2pi) of cosine theta plus one equals zero
asked by Anonymous 
trig
All solutions in interval [0,2pi) of cosine theta plus one equals zero
asked by Anonymous 
math
What is 6% sales tax on $2.59
asked by sara 
help plesse :)
Which one of the following statement best describes what a budget is ? A.A method of figuring out the inflation rate. B.An organized plan for spending money C.A way to keep people from really enjoying life. D.A plan for saving money. so is it D ?
asked by ciara 
Math
Area of a triangular wall with a base of 5ft 9inches and height of 7 ft 2 inches equals how many square feet
asked by Andy 
math
the sum of 13 consecutive integers is 26. what is the largest of the integer
asked by Anonymous 
physics
Driving along a crowded freeway, you notice that it takes a time t to go from one mile marker to the next. When you increase your speed by 4.5 mi/h, the time to go one mile decreases by 12 s. What was your original speed?
asked by Pili 
physics
Two cars are initially moving at constant speeds of 50 m/s (first car) and 30 m/s (second car) along a straight track with the first car being behind. At a certain point (e.g. point A) on the track the first car overtakes the other one. At this very moment
asked by Chris 
6th grade math
what is 1/3 of 3/2? is that means multiply??? or devide???
asked by Kate 
math
what would 6% sales tax on $2.59 be
asked by jeassica 
Health
20. RDAs provide 4 sets of reference values, which are guidelines that recommend amounts of nutrients and other food components, needed to prevent deficiencies, avoid toxicities, and promote best health. Myth or Fact? I say fact. 29. Which of the
asked by mysterychicken 
physics
A projectile is launched at 45 degrees above the horizontal plane, How fast is it moving at the top of its curved trajectory? 141m.s?
asked by Anonymous 
math
If there are 36 buttons in a jar and there are 3 times as many white buttons than red, how many of each are in the jar? What is the equation and how do I solve?
asked by chad 
Science
Can someone please help Thank you. What are the main goals and strategies of green intelligence?
asked by John 
Math
A regular hexagon has six sides of equal length. If each side of a hexagon is 25mm, what is the perimeter?
asked by Sam 
6th grade science
what are two objects with the same volume. why does one feel heavier?
asked by DeDe 
English
I have to write an essay on the theme of the short story "All is clam" by Ann Walsh. The story is about a girl who has to take her grandmother, who has alzheimers, to the hosptial. She has difficulty dealing with her grandmother acting very "strange" on
asked by Raymond 
3rd grade math
Use the digits 3, 7, 1, 5 to write a number that rounds to each of the following 2,000 3,500 6,000 7,400
asked by Jaylen 
Organic Chemistry
What are the advantages of using a solvent pair for recrystallization? Select all that apply. A) You can control the solubility of the substance in the mixed solvent. B) You don't have to know the exact amounts of the solvents needed. C) You can quickly
asked by Lisa 
statistics
A job in an insurance office involves telephone conversations with policyholders. The office manager estimates that about half of the employee’s time is spent on the telephone. How many observations are needed in a work sampling study to estimate that
asked by rodrigo 
math
solving equation 20x7=2+17x
asked by kathie 
math
the sum of 1 half + 1 fourth + 1 eith...
asked by Anonymous 
english
Rewrite each run or sentence as two sentences or a compound sentence using and, but , or or. 1. Most fish are about a foot long some fish are giants.
asked by Jess 
algebra
What is the 32nd term of the arithmetic sequence where a1 = 13 and a13 = –59?
asked by jes 
algebra
x=9/10 4x+y=3 4(9/10) +y= 3
asked by ruth 
Math
Express the repeating decimal 0.513 (the 13 is repeating) as a fraction in lowest terms using the infinite geometric series method.
asked by Haile 
mean median mode
i need to find from the following data the outlier and how the outlier affects the mean. find also the mean median mode here are the numbers: 156 145 162 215 148 163 here is what i got: outlier; 215 with the outlier the mean is: 164.8 with out the outlier
asked by Marko 
understanding psychology
when physical energy has resulted in a response in a sense organ, it is clear that:
asked by shan 
statistics
A normal distribution has a mean of 20 and a standard deviation of 2. If you convert every score in the distribution to Z scores, which of the following statements would be true of the resulting distribution?
asked by Anonymous 
geometry
write an equation for the line parallel to the given line that contains C. C(3,7); y=8/9x +7
asked by Terre 
chemistry
The initial concentration for the compounds involved in the reaction displayed were determined to be [CH4(g)] = 0.9530 mol/L, [H2O(g)] = 0.9911 mol/L, [CO(g)] = 0.7474 mol/L, [H2(g)] = 0.2717 mol/L. Calculate the value of the equilibrium constant (Kc) at
asked by BOB 
physics
A diver springs upward with an initial speed of 1.6 m/s from a 3.5m board. (a) Find the velocity with which he strikes the water. [Hint: When the diver reaches the water, his displacement is y = 3.5 m (measured from the board), assuming that the downward
asked by Anonymous 
math
logx4 = 1/3 Solve. Is this the right answer? x^logx4 = x^1/3 4 = x^1/3 x = 4^3 = 64
asked by Nemo 
Math
How to I do algebra with fractions? 2 K = 22 5
asked by Kad 
Math
Solve (log base 2, cube root of 2) log2(2^1/3) You transform it into the form above, right? then you cancel the 2s to get 1/3
asked by Nemo 
physics
A ball in tennis is lofted with an initial speed of 15m/s, at and angle of 50 degrees above the horizonal. At this instant, the opponent is 10m away from the ball. He begins moving backwards 0.3s later, hoping to reach the ball and hit it back at the
asked by billy 
Science
A species of bacteria in a laboratory undergoes exponential growth, reproducing every 30 minutes. Starting with one bacteria cell, how many bacterial cells will there be after 3 hours? Would the answer be 64? Thanks
asked by Shadow 
Math
ln x^2(x+1)/x+2 Write in terms of ln(x), ln(x+1), and ln(x+2) is the correct steps this? lnx^2 + ln(x+1)  ln(x+2) = 2lnx + ln(x+1)  ln(x+2)
asked by Blue 
Math
The sum of 25 consecutive integers is 1000. What is the smallest integer used as an addend.
asked by Vic 
English
1. Q1: What kind of work Orbis people have done so far:  They have traveled to underdeveloped countries to provide free eye surgery. 2. Q2: What kind of work have Orbis people done so far?:  They have traveled to underdeveloped countries to provide free
asked by rfvv 
Algebra
Can someone help me do this problem? Solve: 6(2r+8)=10(r3)
asked by Shelby 
Reading
Compare Dan in Night of the Twisters and Jinathan in Earthquake Terror. How are the characters alike and different?
asked by Anonymous 
geometry
how did you get 29/3 for C write an equation for the line parallel to the given line that contains C. C(3,7)y=8/9x +7
asked by Terre 
Geometry
how do you solve using midpoint equation if you only have one pair of points? like to use midpoint equation you usually get two points (4,3) and (5,2) but ive been given only one point (3,1). how do i solve for midpoint with only one set of points? help
asked by Madison 
Math
Kevin has a rabbit, a ferret, a gerbil and a turtle. He feeds them in a different order each day. In how many different orders can Kevin feed his pets?
asked by Carter 
Math
Let f(x)= (sqrt(25−x^2))+5 arccos (x/5). Then f(x) can be written in the simplified form − [(x+c)/mx+n)]^p. What are the values of c,m,n and p? Please tell me how to do this question. Thanks
asked by Sara 
Math
Let f(x)=sinh^−1(6x). Then f(x) can be written in the simplified form (Ax+B)/(sqrt(Cx^2+D). What are the values of A,B,C and D? Again, please show me how to do this. Thanks
asked by Sara 
writing
hi what is an onpage word? And where can it be found?
asked by xavier 6th grader 
Calculus
Could anyone please help me figure out the discontinuity that is removable of the following function?? Any help would be greatly appreciated! Thanks in advance!!! f(x)=4x/x^2+x2
asked by Eric 
physics
Two children are playing on two trampolines. The first child can bounce 1.4 times higher than the second child. The initial speed up of the second child is 4.8 m/s. The maximum height of the second child is 1.17m and the initial speed of the first child is
asked by Brianna 
science
How to properly format a science procedure paper
asked by Smartypants 
cultural diversity
1. Advocates of social skills building and role modeling would not be inclined to choose a Western style of play because Western play: A. Has a people focus, not an object focus B. Is impossible for many nonmainstream children to master. C. Lacks a
asked by Vanessa 
nursing
How would you prevent misconduct in any reserach study
asked by jen 
Algebra
Simplify the expression. Write the answer without negative exponents. (4a^3b^3)(4ab^2)^2
asked by Christina 
human bahavior in organization.. please help me
is anyone can help me to get the correct answers for the questions below.please help me thank you 1.How effectively your staff communicates and relates to each other can tell you how much they care for their work and the people around them? my answrs: To
asked by jessie 
business
A loan of face value $30,000,000 is issued in bonds each face value $300. The bonds will be repaid with a bonus of 20%. 1/5th of the total capital will be repaid each year, the first payment being at the end of the 10th year. Coupons on the outstanding
asked by Kevin 
math
a piece of fabric is cut into 12 equal lengths with 3 inches left over. Define a variable, and write an expression for the length or the original piece.
asked by pedro 
Psychology
How can you fix a problem if you don't know what it is?
asked by Sharon 
Math 116a
p(x)+x^22x+7 What is the domain of P?
asked by Katie A 
ap government
what are two ways that amendments to the constitution can be proposed?
asked by angela 
math
You are driving home from college steadily at 95km/hour for 130km. It begins to rain and you slow to 65km/hour. You arrive home after driving 3 hours and 20 minutes. How far is your hometown from college?
asked by Sam 
Sociology
I am having some trouble with a sociology assignment concerning research methods. I know this is not a subject covered on this site, but I do not know of any sites for help in this area. If you know of any or have knowledge in this area, then your help
asked by Jackie 
math
The surface area of the moon is 37932330 km square. Calculate the side length of a square with the same area.Show your work.
asked by cool1997 
calc
How do you simplify tan(sin^1 (x)) ?
asked by Anonymous 
computer
Simplify Boolean algebra f(X,Y,Z)=(X’Y+XZ)(X+Y’)
asked by Ardi 
calculus
A rectangle is bounded by the xaxis and the semicircle y = ¡Ì36 ¨C x2, as shown in the figure below. Write the area A of the rectangle as a function of x, and determine the domain of the area function.
asked by Bridgette 
geometry
Angle ABC measures 120 Degrees and is bisected by line BD. Find x if the measure of angle ABD is (1/2)x+5
asked by hally more 
Spanish Literature Question 2
Ok so I understand that Historia del hombre que se convirtio en perro relates to existensialism and the politicla in Argentina. But HOW exactly to the events in the story convey that?
asked by Cassie 
physics
solve for Vf in a=Vf^2Vi^2/2d how do you do it???
asked by lia 
Math Analysis
(3.) The plane 2x + 3y – 4z = 5 intersects the xaxis at (a,0,0), the yaxis at (0,b,0), and the zaxis at (0,0,c). The value of a + b + c is?
asked by B 
Math Analysis
lim x>infinity (3x^2+4x5)/(6x^2+3x+1)
asked by B 
organic chemistry
Michael & Aldol Condensation Reaction We are preparing an a,bunsaturated ketone via Michael and aldol condensation reactions. The reactants are transchalcone and ethyl acetoacetate (in ethanol and NaOH). This creates
asked by Anonymous 
Math
I am a number with the same number of tens as ones. The sum of my digits is less than 5. Is am a number greater than 15. What number am i?
asked by Zoe 
organic chemistry
Michael & Aldol Condensation Reaction We are preparing an a,bunsaturated ketone via Michael and aldol condensation reactions. The reactants are transchalcone and ethyl acetoacetate (in ethanol and NaOH). This creates
asked by Anonymous 
WORD PROBLEM
In last saturdays parade. Tom countged a total of 76 bicycles and tricyles for a total of 227 wheels. how many tricycles were in the parade?
asked by Marko 
calculus
Express the given quantity as a single logarithm. 1/3ln(x + 2)3 + 1/2[ln(x)− ln(x^2+3x+2)^2]
asked by Anonymous 
Physics
A 61 kg skateboarder wants to just make it to the upper edge of a "quarter pipe", a track that is onequarter of a circle with a radius of 2.89 m. What speed does he need at the bottom?
asked by Jose 
Precalculus
The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of theta by finding a point on the line. y= 3/2x in quadrant 4
asked by Maria 
Precalculus
The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of theta by finding a point on the line. y= 3/2x in quadrant 4
asked by Maria 
Precalculus
The terminal side of theta lies on a given line in the specified quadrant. Find the values of the six trigonometric functions of theta by finding a point on the line. y= 3/2x in quadrant 4
asked by Maria 
Math
At a party, if 1/3 of one sheet cake and 1/6 of another sheet cake remain uneaten, what fraction of a whole sheet remains uneaten .
asked by Jj 
Physics
A 27.59 kg child is on a swing that hangs from 2.26mlong chains. What is her maximum speed if she swings out a 48° angle?
asked by Jay 
156
is this a strong thesis statement? Legalizing marijuana has many benefits such as, reducing overcrowding in prisons, helping create jobs for low to mid income individuals, reduce the budget for ”the war on drugs” and can treat different medical
asked by Anonymous 
organic chemistry
Michael & Aldol Condensation Reaction We are preparing an a,bunsaturated ketone via Michael and aldol condensation reactions. The reactants are transchalcone and ethyl acetoacetate (in ethanol and NaOH). This creates
asked by Anonymous 
social studies
5. At the Constitutional Convention in Philadelphia, Madison drafted the plan presented by Virginia Governor Randolph, and William Patterson of _______ presented a plan that was similar to the Articles of Confederation. A. Massachusetts B. New Jersey C.
asked by Anonymous 
english
what are some example of overcompensating
asked by rosa 
human bahavior in organization..ms.sue pls.help me
please help my answer to correct the grammar thank you. QUESTION 1.How effectively your staff communicates and relates to each other can tell you how much they care for their work and the people around them. MY ANSWER. To be able to instruct them correctly
asked by jessie 
Physics
A student places her 442 g physics book on a frictionless table. She pushes the book against a spring, compressing the spring by 4.44 cm, then releases the book. What is the book's speed as it slides away? The spring constant is 1102 N/m.
asked by Juan 
MATH
A ROCK IS DROPPED INTO A DRY WELL. THE TOTAL TIME TO REACH THE BOTTOM NAD FOR THE SOUND TO TRAVEL BACK TO THE TOP IS 6.7 S. WHAT IS THE DEPTH OF THE WELL TO THE NEAREST FOOT.
asked by CHRIS 
Physics
A 1596 kg car traveling at 24.91 m/s skids to a halt. What is the change in the combined thermal energy of the car and the road surface?
asked by Joe 
math
if i have a 90 length and a 40 width inch of a house and i want to add tiles so i get a 16 inch by 16 inch tile for a "perfect square" how may tiles will i need
asked by racuel 
Chem
A volume of equimolar strong acid like HCl is mixed with an equal volume of equimolar strong base like NaOH in a beaker of water. What exists after the reaction?
asked by Chandler 
Social Science
Suppose a friend of yours suggests that poor people and affluent people have different rates of involvement in marihuana use. You will interview 100 adults outside of Grand Central station and you will ask them some questions. How involved are you in
asked by Dana 
geometry
true or false : The supplement of 59˚ is 120˚.
asked by Hailey 
math
Solve for y, then find the value of y when given x = –2. 6x = 7 – 4y
asked by katie 
Math
For a 3person relay race, a coach can choose from 4 of his top runners.how many different 3 person teams can he choose ? Use the act it out strategy.
asked by Math 
algebra
Are these lines parallel, or perpendicular 2x+4y=4 4x2y=1 I think they are niether
asked by Katie A 
Calculus
If f(x)=(3x)/(1+x2) find f′(4)______. Use this to find the equation of the tangent line to the curve y=(3x)/(1+x2) at the point (4,0.70588). The equation of this tangent line can be written in the form y=mx+b where m is: ________ and where b is:______
asked by Robin 
physics
Suppose a person weighs 160 pounds on Earth. How much would that person weigh on a planet that was three times as massive as Earth and had a radius that was twice that of Earth's?
asked by Ruth 
Chemistry
C4H10O(l) + O2(g)  CO(g) + H2O(g) When I balanced it I got this C4H10O(I) + 4O2(g)  4CO(g) + 5H2O Am I correct
asked by Monique 
Physics
A proton is projected perpendicularly into a magnetic field that has a magnitude of 0.32 T. The field is then adjusted so that an electron will follow a circular path of the same radius when it is projected perpendicularly into the field with the same
asked by Breanna 
Physics
How fast does a rocket need to be going to break free of Earth's gravity? How fast would it have to be going in order to completely leave the solar system? (For the second part of this problem, assume that the Sun is the only mass in the solar system and
asked by Kaitlyn 
reading
Who is EL Grande's child?
asked by ardonte 
chemistry
Given the following list from the activity se ries of metals (from most active to least ac tive) K, Na, Al, Mn, Cr, Cd, Co, Pb, Hg which reaction would you NOT expect to oc cur? 1. Na(s) +Mn2+(aq) ! Na+(aq) +Mn(s) 2. Co2+(aq) + Al(s) ! Al3+(aq) + Co(s)
asked by Chandler 
math
Lara wrote the statements shown in the chart. Statement One: If two lines intersect, then they intersect at exactly one point Statement Two: In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the length of
asked by Please Help Me 
Word Problem
In last Saturdays parade Tom counted a total of 76 bicycles and tricycles, for a total of 227 wheels. How many tricycles were in the parade? i got a 73 x 3 =219 wheels in tricycle 3 x 2 = 6 wheels in bicycle for a total of only 225 wheels im short by 2
asked by Marko 
lang.srts
in the book the outsiders why would pony boy feel reluctant to fight at the end of the novel?
asked by o9 
Language
A naturalistic languagelearning environment
asked by Daisy 
chemistry
Which of the following is best described as an acidbase reaction? 1. NaCl + AgNO3 !NaNO3 + AgCl 2. Ca + 2H2O ! Ca(OH)2 + H2 3. 2HgO ! 2 Hg + O2 4. KCl + NH4NO3 ! KNO3 + NH4Cl 5. NH3 + H2O ! NH+ 4 + OH−
asked by Chandler 
math
5 items = a mean of 98 6 items =mean of 102 possible anwers 25,24,117,122 please show how to do
asked by Robert 
Chemistry
Which of the following aqueous solutions should form a precipitate with aqueous Fe(NO3)3? 1. KOH 2. KCl 3. K2SO4 4. KNO3
asked by Yep 
Language
A naturalistic languagelearning environment is
asked by Daisy 
ChemistryPretty simple question
You dissolved a solute in some water to make a solution. If you had needed to know how much solute dissolved, how could you have determined this? I was just guessing of using a scale, but there must be some other way.
asked by Untamed 
math URGENT HELP
Mr. Hobbs was just about to take out a home mortage of $120,000 for 20 yrs at the rate of 10.0% compounded monthly. The monthly payments would have been $1158.03. But a competitive bank offered him a 30 yr mortgage at 9,5% which has monthly payments of
asked by Blaire 
Chemistry
A student forgot to measure the mass of an empty 100mL beaker before adding about 2g of a chemical to it, and decided to simply obtain the mass of another empty 100mL beaker instead. Would this be a satisfactory alternative?
asked by Untamed 
pop culture
do you think consolation is true in todays culture
asked by g 
Chemistry
HCN is mixed with water. Which is the best description of what you would expect to ﬁnd in the solution? 1. CN−, OH−, and water molecules 2. HCN molecules, H3O+, CN1−, and water molecules 3. H2CN+, OH−, and water molecules 4. H3O+, CN−, and
asked by Anonymous 
history
I need help picking a easy topic. the topic should be like historical events but i can't think of any. can you please help me!!!!
asked by maryam 
Math 116
if I solve this by substitution 8x+7y=13 x=297y I end up with 3.8 But I think there is no solution
asked by Katie A 
precalculus
suppose a triangle has two sides of lengths a and b. if the angle between these sides varies, what is the maximum possible area that the triangle can attain? what can you say about the minimum possible area? could you explain by detail
asked by tatiana 
Please help!!!!!Physics
Find the resultant force on (a) the mass m1 = 0.183 kg and (b) the mass m2 = 0.106 kg (the masses are isolated from the earth).. The first mass is 400kg and its 10 cm from the second mass which is 0.183 kg (m1). the second mass is 10 cm away from the third
asked by kellie 
Math
What two simpler problem can you use to find 9x38?
asked by Vic 
Math
Express the repeating decimal 0.513 (the 13 is repeating so the decimal is 0.5131313131313...) as a fraction in lowest terms using the infinite geometric series method.
asked by Haile 
Ms Sue help word problem
In last Saturdays parade Tom counted a total of 76 bicycles and tricycles, for a total of 227 wheels. How many tricycles were in the parade? word problem  Marko, Thursday, September 29, 2011 at 10:31pm i go 75 tricyles x 3 = 225 wheels 1 bike x 2 = 2
asked by Marko 
Spanish Lit Take 2
Ok so because I received a ridiculous response with a link to someone's class syllabi I've decided to repost my question.... Ok so I understand that Historia del hombre que se convirtio en perro relates to existensialism and the politicla in Argentina.
asked by Cassie 
Algebra
ln x^2(x+1)/x+2 Write in terms of ln(x), ln(x+1), and ln(x+2)
asked by Blue 
Algebra
(log base 2, cube root of 2) log2(2^1/3)
asked by Blue 
Algebra
logx4 = 1/3
asked by Blue 
PHI 103
PHI 103 Symbolic Logic write 2 argument in English,one in the form of modus ponens and one in the form of modus tollens.Then write the argument in symbols using sentences letters and truthfunctional connectives.
asked by Vandella 
physics
Given that x2 is a factor of x^34x^22x +k,find k.
asked by Luc 
Sociology
Define Sexual Selection?
asked by Casey 
science
Given that P(x)=x(x^213) +12,express P(x)as a product of linear factors.
asked by Luc 
Science  Chemistry
A certain elixir is 92 proof. A proof is twice the volume percentage of alcohol in a blend. Ethanol's structural formula is CH3CH2OH with a molar mass of 46 grams/mole. The density is .79 g/ml. How many liters of elixir must one have in order to have 50
asked by Ashley 
Government.
Regarding the commerce clause, which statement is incorrect? A. The states may regulate interstate commerce. B. The national government may not regulate interstate commerce. C. Commerce is to be unregulated by gov't. D. Local taxing authorities may
asked by Adryan 
physics
A ball player hits a home run, and the baseball just clears a wall 17.3 m high located 131.0 m from home plate. The ball is hit an an angle of 35° to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 1.0 m above the
asked by kaylee 
math
3(2012)+8 what is the answer to this problem?
asked by kobi 
Chemistry
What is the net ionic equation for the reaction Cu(s) + 2 Ag (NO3)2(aq)  Cu(NO3)2(aq) + 2AG(s)
asked by Monique 
math
Mr. Hobbs was just about to take out a home mortage of $120,000 for 20 yrs at the rate of 10.0% compounded monthly. The monthly payments would have been $1158.03. But a competitive bank offered him a 30 yr mortgage at 9,5% which has monthly payments of
asked by Blaire 
Chemistry
I have to put the correct complete and balanced equation for Li(s) + N2(g) Li(s) +N2(g)  LiNi2(s) I think I'm correct what do you think
asked by Monique 
Math
1. First of all, pick the number of times a week that you would like to have chocolate (try for more than once but less than 10) 2. Multiply this number by 2 3. Add 5 4. Multiply it by 50 5. If you have already had your birthday this year add 1761 ; If you
asked by Caryls 
Math 111
This is a question that deals specifically with WebWork. Here is the question: Write the set of points from 2 to 4 but excluding 1 and 4 as a union of intervals my solution to this would be: [2,4]U(1,4) my reasoning: The first set includes 2 and goes
asked by Joey 
Statistics
9 trucks arrive per hour. It takes 6 minutes after reaching the loading station. Two alternatives to modify the situation. One is to change the trucks and add a helper at the loading station at a cost of 50,0000. This would change the arrival time of the
asked by Sammy 
english
I have an assignment regarding an argumentative essay the title is "drug and alcohol abuse is a serious problem among many young people." I need 1 to 4 pages if you could help me on this.... It would be greatly appreciated. Thanks
asked by erianne 
anatomy and physiology
I need to know what are the skeletal muscles their functions and their locations
asked by erianne 
Chemistry
Li(s) + N2 6Li(s) + N2 ==> 2 Li3N Li =6. Li =6 N= 2. N =2 Am I correct now
asked by Monique 
Calculus   Dividing Radicals
For the radical symbol, I'll just make a v. 3V240/V108 V240 = 4V15 V108 = 6V3 4V15/6V3 = ??? I am able to divide 3 into 15, and I get 5. But I cant do the same with 4 and 6 because they don't go into eachother evenly, and I can't reduce them either,
asked by Untamed 
Physics
The ocean's level is currently rising at about 1.5 mm per year. At this rate, in how many years will sea level be 3 meters higher than now? This seems like it should be a simple question but the change in measurements is confusing me.
asked by Morgan 
geometry
Point T bisects RS. If R(2,5) and S(14,21), find the coordinates of point T.
asked by George 
Chemistry
What is the mass of 0.0065 mole of ruthenium 6.5 mol Ru x101.07g Ru/1mol Ru = 0.656g Ru Or is it 0.66g Ru
asked by Monique