Questions Asked on
March 21, 2015

chemistry
The Ka of hypochlorous acid (HClO) is 3.00×108 at 25.0°C. Calculate the pH of a 0.0385 M hypochlorous acid solution. A.1.41 B.7.52 C.1.41 D.4.47 E.8.94 I chose B
asked by danny 
math
There are 32 more apples than oranges in a box. 3/5 of the oranges and 1/3 of the apples are overripe. If the number of overripe apples and the number of overripe oranges are the same, how many pieces of overripe fruit are there?
asked by jessi 
Math check
1.(2x)(10x) A)20x* B)12x C)20x^2 D)5x 2.3m(m + 8) A)3m^2 + 24 B)3m^2  24m C)24m D)4m + 5* 3. 4d(2d9) A)8d  36d* B)d C)28d^2 D)8d^2  36d 4. (3x + 4)(x2) A)3x^2  2x  8 B)x  8 C)3x  2x  8* D)3x^2 + 2x + 8 5. (2y  1)(4y  3) A)2y + 3* B)8y^2
asked by Oscar 
math
Rectangle WXYZ is drawn on triangle ABC, such that point W lies on segment AB, point X lies on segment AC, and points Y and Z lies on segment BC, as shown. If
asked by G 
social studies
The growing popularity of newspapers, magazines, and books in the United States during the 19th century contributed to which of these? The emergence of a uniquely American literary style The expansion of educational opportunities for women and minorities
asked by Oscar 
science
Two insulated beakers contain different amounts of identical liquids. Beaker A contains twice as much liquid as Beaker B. The temperature of Beaker A is 80°C. The temperature of Beaker B is 40°C. An aluminum rod connects the beakers, and the system is
asked by Isabel 
Chemistry
A 10.0mL solution of 0.300 M NH3 is titrated with a 0.100 M HCl solution. Calculate the pH after the following additions of the HCl solution: a) 0.00 mL b) 10.0 mL c) 20.0 mL c) 30.0 mL d) 40.0 mL **I know how to solve the problem but I keep getting
asked by Sandhya 
Calculus
suppose that a tumor on a person's body is spherical in shape. if the radius of the tumor is 0.5cm the radius is increasing at the rate of 0.001cm per day. what is the rate of increasing volume of that tumor at that time?
asked by Jam 
geography
Bogotá, Colombia's capital city, is located where?
asked by Anonymous 
differencI also equation
An object of mass 100g is thrown vertically upward from a point 60cm upabove the earth's surface with an initial velocity of 150cm/sec
asked by auguste nande 
Chemistry 2
The equilibrium constant, Kc, for the following reaction is 1.54E2 at 643 K. 2HI(g) H2(g) + I2(g) When a sufficiently large sample of HI(g) is introduced into an evacuated vessel at 643 K, the equilibrium concentration of I2(g) is found to be 0.351 M.
asked by Mariah 
Science
I answered the questions, but I don't know if my choices are right. 1) Which of the following is an acidic pH? 6 7 8 800 None of the Above Answer: 6  2) Which of the following is directly produced by photosynthesis?
asked by Jane 
chemistry
Which of the following acids is expected to be the strongest acid? CH2FCOOH CF3COOH CH3COOH CCl3COOH CBr3COOH i chose ccl3cooh
asked by danny 
chemistry
Distinguish clearly between ▲G for a reaction and ▲S of the same reaction. Which of the two is used to predict whether a reaction is spontaneous? why? (4 marks)
asked by Joseph 
math
The arrow is spun several times until it stops at a number 4. Find the probability that this happens on the third spin.
asked by dana 
Physics
A 130kg mail bag hangs by a vertical rope 3.9m long. A postal worker then displaces the bag to a position 2.2m sideways from its original position, always keeping the rope taut.
asked by Kevin 
Chemistry
At 500 degrees celsius, K for the formation of ammonia from nitrogen and hydrogen gases is 1.5x105. N2(g)+3H2(g)>/
asked by Jessica 
ela
1. what is the ordered pattern of rhymes at the ends of lines of a poem or a verse called?
asked by karen 
maths
the forth term of an A.P is 11 and the sixth term is 17 find the tenth term?
asked by cabdiqaadir 
PreCalculus
Rewrite each quadratic equation in the form ax^2+bx+c=0. Then,use technology to solve each by graphing. ROund you answers to the nearest hundredth, where necessary. a) 3x^2+30 = 19x Answer: 3x^2+19x+30 Roots: x = 3 b) 6x^2= 25x24 Answer: 6x^2+25x24=0
asked by Lucina 
maths!!!!!!
The 6th and 13th term of a geometric progression are 24 and 3/16 respectively.Find the sequence.
asked by Raksha 
Help with Psychology regarding Positive Correlatio
Which of the following is an example of a positive correlation? a) The crime rate increases as the income level decreases. b) As education levels decrease, the crime rates increase. c) The crime rate decreases as city population decreases. d) None of the
asked by Hikaru 
chemistry
The standard Gibbs free energy of formation of ammonia at 25 ° c is  16.5kj per mole.calculate the value of equilibrium constant Kp at this temperature for this reaction. ( 5marks )
asked by muli 
Physics
A 130kg mail bag hangs by a vertical rope 3.9m long. A postal worker then displaces the bag to a position 2.2m sideways from its original position, always keeping the rope taut.
asked by Kevin 
physics
in a game of billiard , a collision occurs between two marble balls of different mass. one ball 400g is initially at rest. After the collision, this ball acquires a velocity of 1.40m/s at an angle of 37 degrees from the original direction of the motion of
asked by Zobia 
Math
1. Michael Koepler received his bank statement and canceled checks for October. His previous balance was $998.41. In October, he deposited $177.00 and wrote checks totaling $378.00. What was the ending balance for that month? MY ANSWER I am unsure if the
asked by N. 
physics
If, after rotating for some time at constant angular velocity of 72 rad/s, brakes are applied to the flywheel producing retardation of 4 rad/s2 , determine the time taken to reduce its angular velocity to 40 rad/s.
asked by baz 
History Check Please
1. Annie Webb Blanton accomplished all of the following EXCEPT (1 point) found Delta Kappa Gamma. serve as a professor at the University of Texas in Austin. become Texas Secretary of State. serve two terms as superintendent of public instruction. 2. Texas
asked by SmartyPants 
Math
Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y
asked by Heather 
algebra
1. A rectangular wooden frame has side lengths 5x and 7x + 1. The rectangular opening for a picture has side lengths 3x and 5x. What is the area of the wooden part of the frame? Write your answer in factored form. How can drawing a diagram help you solve
asked by SkatingDJ 
math
Point X is on side of line AC of triangle ABC such that
asked by G 
Shakespear
Read the exchange between Romeo and Nurse in Act II, scene iv of Romeo and Juliet. Romeo: Bid her devise Some means to come to shrift this afternoon; And there she shall at Friar Laurence’ cell, Be shriv’d and married. Here is for thy pains. Nurse: No,
asked by Danny G 
Chemistry 2
The equilibrium constant, Kc, for the following reaction is 1.54E2 at 643 K. 2HI(g) H2(g) + I2(g) When a sufficiently large sample of HI(g) is introduced into an evacuated vessel at 643 K, the equilibrium concentration of I2(g) is found to be 0.351 M.
asked by Mariah 
statistic
Ten individuals went on a low–fat diet for 12 weeks to lower their cholesterol. Evaluate the data below. Do you think that their cholesterol levels were significantly lowered? (Show all your work i.e. Ho and Ha, pvalue, conclusion in words)
asked by etoile 
social studies
give a brief overview of accommodation, transportation, food and beverage in the tourism sector
asked by nico 
Genetics (science)
Please answer my science question (in detail if possible) Q: in rats the gene for black hair colour is dominant over the gene for brown hair colour. Draw a plunnet square and use it to predict the fractions of both the genotypes and phenotypes produced
asked by Chloe c 
PHI445
Who is generally given credit for introducing fundamental human rights into the American political system? A) Thomas Hobbes B) John Locke C) Thomas Jefferson D) Alain Locke
asked by Danelle 
MATH!!!
What is the equation for the line that passes through W(10,9) and is parallel to y=5/32x10 ? Thank you....
asked by Joy 
Math
Kool Klothes has determined that the revenue function for selling x thousand pairs of shorts is R(x) = 5x^2 + 21x. The cost function C(x) = 2x + 10 is the cost of producing the shorts. a) How many pairs of shorts must the company sell in order to break
asked by Christine 
chemistry
The Ka of hypochlorous acid (HClO) is 3.00×108 at 25.0°C. Calculate the pH of a 0.0385 M hypochlorous acid solution. a.1.41 b.7.52 c.1.41 D.4.47 E. 8.94 I got B 7.52 but i feel like im wrong
asked by danny 
math  URGENT
I'm don't understanding how to solve this question: The graph of a line passes through the xintercept of y20=2/11(x31) and is perpendicular to the line y=1/7x+7 . The equation of the line, written in SlopePoint form, is yp = m(xq). what is the value
asked by Joy 
CDA
One suggested way to foster both prosocial behavior and selfesteem is the use of A. reasoning. B. verbal aggression. C. role modeling. D. timeout. I choose c
asked by liliana 
social studies
1.__________ introduced Europeans to Muslim inventions, such as the astrolabe that helped sailors navigate the seas. a)the Crusades, b)the Reconquista c)the Vikings d)the Magana Carta *** 2.In Athens the system of government became a direct democracy, in
asked by need help real quick 
PHI445
Thomas Hobbes believes that most people in the state of nature would prefer: A) stay there because no one interferes with anyone else. B) wish to leave it and join society because it is freer. C) wish to leave it and join society because it is more secure
asked by Danelle 
Algebra
Find result of imaginary unit i. 1. (3+4i^259)(23i^22)=? 2. (i^38)/(54i^27)=?
asked by Yin 
English
Can check see if these the right way to do in text citations.when “you’re ready to go do something else’’ (Jordan).
asked by P 
math
3 times 2 and 2/5
asked by jeff 
chemistry
If 350 grams of pure fe2o3 is used, how grams of can be produced? the reaction is: fe2+3c2fe+3co
asked by wen 
chemistry
What is the pH of 500 mL of water that had 0.00150 grams of NaOH added to it? The units are pH units with an error interval of 0.1 units. 0.00150 divided by 40NaOH 3.75e5 divided that by 500= 7.5e8 log7.5e8 =7.12 im lost on the last step
asked by danny 
social studies
1.__________ introduced Europeans to Muslim inventions, such as the astrolabe that helped sailors navigate the seas. a)the Crusades,*** b)the Reconquista c)the Vikings d)the Magana Carta 3.king granted land to lords who in turn granted land to knights
asked by #school 
Medical physics
A silver cube (density of silver is 10 g/cm3) with side length of 3 cm weighs more than an aluminium cube (density of aluminium is 2.96 g/cm3) with side length of 4 cm. The cubes are each suspended by a string and allowed to be completely immersed in two
asked by JAMES 
chemistry
All of the following acidbase pairs are examples of buffers EXCEPT: (Question from "Cracking the MCAT, 20102011 edition" by The Princeton Review) HCl/NaCl CH3CO2H/NaCH3CO2 HF/NaF H2CO3/NaHCO3 I chose ch3co2h/nach3co2
asked by danny 
social studies
1.which of the following do historians not consider a legacy of the Byzantine Empire? a)Justinians code: an organazation of roman laws*** b)Eastern orthadox church: a combination of Eastern culture and christianity c)cyrillic alphabet: a combination of
asked by HOMEWORK 
life science,tourism,business studies,maths literacy
What can I become with this subjects?
asked by calvin 
English
Is the right way to do in text citations.when “you’re ready to go do something else’’ (Jordan).
asked by P 
Algebra
A wire of length L is cut into two pieces of length X and Y respectively, with Y>X. These pieces are then used to form an upper case "L". If Y/X= (X+Y)/Y, determine the values of X and Y in terms of L.
asked by Yin 
science
The two insulated beakers contain equal amounts of identical liquids. The temperature of Beaker A is 80°C. The temperature of Beaker B is 50°C. A copper rod connects the beakers. The system is then left alone for several hours. What would you expect to
asked by Isabel 
chemistry
Calculate ▲U,▲H, ▲S, ▲A and▲G in expanding 1 mole of ideal gas at 25 ° c from 10 to 100 dm cubed. (5marks )
asked by Joseph 
life science,business studies,tourism and maths literacy
What can I become with this subjects?
asked by calvin 
science
The two insulated beakers contain equal amounts of identical liquids. The temperature of Beaker A is 85°C. The temperature of Beaker B is 40°C. A metal rod connects the beakers. Five minutes later, the temperature of Beaker A is 75°C and the temperature
asked by Isabel 
Physics
A rock is thrown directly upward from the edge of the roof of a building that is 35.3 meters tall. The rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown. Neglect any effects of air resistance.
asked by Thomas 
maths
I don't know how to solve this question.urgent A one side open cylindrical drum has inner radius 28cm.and height 2.1m.How much water you can store in the drum.Express in litres.(1 litre=1000cc.)
asked by devi 
Intro statistics
A bag contains 7 red, 6 orange, and 9 green jellybeans. What is the probability of reaching into the bag and randomly withdrawing 11 jelly beans such that the number of red ones is 7 the number of orange ones is 1 and the number of green ones is 3?
asked by Anonymous 
Chemistry
You are titrating 50ml of a 0.02M solution of Zn^+2 at pH 7 with 0.05M solution of EDTA. What is the [Zn+2] after 20mL of EDTA has been added? Kzny=3x10^16
asked by Bear 
social studies
Explain the importance of accommodations to the tourism industry
asked by steve 
urban management
To prevent settling of organic matter a Vs should be
asked by Anonymous 
science
The two systems shown below are identical except for the rod connecting the two beakers. Initially the temperatures of the beakers are as follows: Beaker A = 88°C Beaker B = 42°C Beaker C = 88°C Beaker D = 42°C Four minutes later the temperatures are
asked by Isabel 
physics
the mass of the sun is 2×10^30kg.the mass of a proton is 2×10^27kg.if the sun was made only of protons.calculate the number of protons in the sun?
asked by Anonymous 
chemistry
You need to determine the pKa of a weak, monoprotic acid. You add 0.500 moles of the acid to 1.00 L of water. The resulting pH was 1.87. What is the pKa of this weak acid? You may ignore the autoionization of water. 2.74 3.43 5.38 2.01 1.87
asked by danny 
Chemistry
The equilibrium constant, Kp, for the following reaction is 0.497 at 500 K: PCl5(g) PCl3(g) + Cl2(g) Calculate the equilibrium partial pressures of all species when PCl5(g) is introduced into an evacuated flask at a pressure of 1.46 atm at 500 K. PPCl5 =
asked by Kayla23 
chemistry
Hey, I'm struggling a bit with this thermal energy question: One major cost in the brewing history is the cost of energy used in running a plant. Much of the heating plant is accomplished by the cooling and or condensing of steam. When 50.0 mg of griest is
asked by Yana 
Algebra
Evaluate¡Ì7x(¡Ìx  7¡Ì7)Show you work. My answer x¡Ì7 ¨C 49 ¡Ìx
asked by Johnthyn 
math
Calculate the mean value for the number of heads appearing in a simultaneous throw of 3 coins.
asked by gourav 
physics
Show that the angular momentum L=r¡Áp vector is an axial vector
asked by gourav 
maths
The curved surface area of the cylinder is 1760cm^2.and its volume is 12320cm^3.Find its height.
asked by devi 
Math
Hi I'm having a bit of trouble if anyone is able to help, thanks! Using the substitution u =12t^2, show that A = 1/4 ∫_1^(7)▒e^u du
asked by Simon 
application of differential equation
An object of mass 100g is thrown vertically upward from a point 60cm above the earths surface with an initial velocity of 150cm/sec. It rises briefly and then falls vertically to the earth, all of which time it is acted on by air resistance that is
asked by maria 
chemistry
The average swimming pool has a volume of about 28,000 gallons. Suppose a swimming pool was filled with pH 7.00 water. However, you need to adjust the pH to 4.75. How much acid pool acid (which is 1.00 M HCl) do you need to add to the pool? The units are
asked by danny 
algebra
if someone withdrew $237 from savings account that totaled $3,000 what percent of money is left in the account?
asked by Slimjim 
chemistry
Calculate the volume of NaOH 0.1M that needs to be calculated to be added to a 30ml ophosphoric acid 0.1 in order to prepare solutions of pH 7.5 and pH 6.9? pKa3= 2.15; pKa2=7.2; pKa1 = 12.1
asked by Adeola 
physics
If a mass of gasoline occupies 70.01 at 20°C, What is the volume at 35°C?
asked by charlotte 
Critical thinking
In the following sentence, which words are used as adjectives? The golden rays of the bright sun reflected off the clear waters of the calm lake. A. The, of, in, clear, and calm B. The, golden, the, bright, the, clear, the, and calm C. Golden, rays, clear,
asked by Saddia 
science chemistry
Calculate the relative atomic mass of Limestone CaCo3 Methanol CH3oH Sulphric acid Ca(No3)2. (Ca=40.1,C=12,O=16,H=1,S=32).
asked by compound 
critical thinking
Which of the following is not a primary sentence pattern for asking questions in English? A. Helping verb, subject, main verb B. Subject, action verb, direct object, helping verb C. Adverb, verb, subject D. Adjective/pronoun, subject, interrogative verb my
asked by Saddia 
eng.Economic
deposits $1,000 now, $2,000 2 years from now, and $5,000 5 years from now into a fund paying 12% compounded semiannually. a. What sum of money will be accumulated at the end of sixth year? b. What equal deposits of size A, made every 6 months (with the
asked by sss 
eng.Economic
Marvin borrows $2,500 from the Shady Dealings Loan Company. He is told the interest rate is merely 2%/month and his payment is computed as follows: Loan period = 30 month Interest = 30(0.02)($2,500) = $1,500 Credit investigation and insurance = $50 Total
asked by sss 
Math, Intergration
C(T)=0.781250.5e^(0.64T) (T+1.5625) Using this equation, I don't understand 'Intergration by parts' to show this and what it means Any help is appreciated!
asked by Amy L 
Debate
I need help finding and article or news story to help my argument that Refusing to accept EBT cards is prejudicial. And that law makers should not banned EBT cards in fast food restaurants for the many card holders.
asked by Josh 
math
If a power failures occur according to a poisson distribution with an average of 3 failures every twenty weeks,calculate the probability that there will not be more than one failure during a particular week.
asked by gourav 
life orientation
show the link between intrapersonal conflict and intiating relationship
asked by precious 
mathematical physics
For any two vectors u^ and v^ show that: (u^.v)^2[(u^×v^)].u^= u^2v^2
asked by gourav 
physics
The five engines of the first stage of a launch vehicle provide a total thrust of 31.5 x 106 newtons to the space vehicle (launch vehicle and spacecraft). Assuming the acceleration is uniform, calculate the acceleration of the 2.764 x 106 kg space vehicle
asked by baz 
mathematical physics
Show that the angular momentum vector(L)=vector(r)×vector(p) vector is an axial vector
asked by gourav 
physics
A 1 tonne caravan is being towed by a car which provides a constant drawbar pull of 40 N. If the resistance to motion is 20 N, calculate the acceleration of the car and the caravan.
asked by baz 
physics
The throttle of an electric train is shut off at a speed of 48 km/h. The total mass of the train is 81 tonne and the combined resistance force is 90 newtons per tonne. Find how long it will take for the train to stop.
asked by baz 
physics
A wheel has turned through 120 revs in 10 s after starting. find the angular acceleration.
asked by baz 
mathematical physics
Given two vector function vector a(t)=(2t+3)i^+(t^22)j^+tk^ and vector b(t)=(4t)i^+(3t^3+1)j^+(2t1)k^, determine the derivative of vector a(t).vector b(t) at t=1.
asked by gourav 
mathematical physics
Determine the directional derivative of phi =xy^z in the direction i^2j^+2k^ at the point (3, 1, 1)
asked by gourav 
critical thinking
A common term for photographs, cartoons, advertisements, illustrations, drawings, PowerPoint slides, and graphics used to help present information is A. representers. B. ocular enhancements. C. sight perks. D. visuals. my answer is d.
asked by Saddia 
physics
A spring balance has a scale that reads from 0to50 kg.The length of the scale is 20cm.A body suspended from this balance,when displaced & released, oscillates with period of 0.6 s.What is the weight of the body?
asked by shan 
physics
Why is parallax method not useful for measuring the distances of stars more than 100 light years away?
asked by shan 
mathematical physics
Determine whether the following vector field is incompressible or irrotational at the point (0, 1, 2) vector F =[x/x^2+y^2+z^2]i^ +[y/x^2+y^2+z^2]j^+[z/x^2+y^2+z^2]k^
asked by gourav 
maths
A copper solid cylinder of radius 14 cm and height 10cm is meter and recast into cylindrical wire of diameter 4mm.find the length of copper wire?
asked by om 
mathematical physics
Obtain the curl of the following vector field in spherical polar coordinates : vector A = x( xi^+yj^+zk^)
asked by gourav 
English
what is the story behind the monkey's paw how does it link to fate how does the writer present this? Can you please answer this question using this quote: " "It had a spell put on it by an old fakir," said the sergeantmajor, "a very holy man. He wanted
asked by Abdi dj 
Quick English check
Now with passion in our eyes There's no way we could disguise it secretly So we take each other's hand Because we seem to understand the urgency In the third stanza, the word disguised means A. Inportance B. Dress up as C. Hide D. Change appearance I
asked by Anonymous 
critical thinkng
The unique way each person approaches assignments, interprets instructor comments, and best devises plans for completing coursework is known as A. learning style. B. best student path. C. learning to discipline. D. academic development. my answer is a.
asked by Saddia 
sicence
A body of mass 5.0kg initially at rest from height of 4.0m.calculate its final velocity just before it hits the ground
asked by chidimma nwachukwu 
Quick English check
'Cause I've had the time of my life And I owe it all to you I've been waiting for so long Now I've finally gound someone To stand by me We saw the writing on the wall As we felt this magical fantasy 4. Read stanza two... The tone of this stanza can be best
asked by Anonymous 
math
Assume that on a weekday one telephone number out of every ten being called is busy. If 6 randomly selected numbers are called what is the probability that at least three of them be busy?
asked by gourav 
critical thinking
Which of the following is a false statement about a basic dictionary? A. A basic dictionary is organized in alphabetical order. B. Various types of words are included a basic dictionary. C. The pronunciation of words is provided in a basic dictionary. D.
asked by Saddia 
math
ABC is an isosceles triangle inscribed in a circle. If AB and AC equal to 2.5cm and BC is 14cm find the radius of the circle
asked by Anonymous 
Educational Technology
Which of the following are Boolean operaters? A.) and, or, not B.) to, for, from C.) a, and, the D.) is, are not
asked by Kelsey 
mathematical physics
Determine the scale factors for an orthogonal coordinate system ( s, t, v ) whose coordinates are related to the cartesion by following equations: x = 2st:, y = s^2t^2:, z = v Also write down an expression for the square of the arc element.
asked by gourav 
application of differential equation
somebody please help me find the solution totally lost.... An object of mass 100g is thrown vertically upward from a point 60cm above the earths surface with an initial velocity of 150cm/sec. It rises briefly and then falls vertically to the earth, all of
asked by maria 
mathematical physics
Calculate the work done by a force vector F = y^2z^3i^+2xyz^3j^+3xy^2z^2k^ in moving an object along the path defined by the parametric equation x = t, y = t, z = t between the points A( t =0 ) and B( t = 1).
asked by gourav 
Chemistry
I am having difficulty with balancing this acidic solution; I2+OCl{} > IO3{} +Cl{} I get: I2 = OCl{} +2H2O > IO3{} +Cl{} + 3H{+} The charges don't balance... What am I doing wrong?
asked by Stacie 
English
I wanted start fresh on the Goetta one that I got help with last night and today. I was having hard when you guys were explain it me and get easily got frustrated.
asked by m 
mathematical physics
Using Divergence theorum evaluate the flux integrate from s vector A.vector D's where A =xi^+yj^+zk^ and s is the complete surface of the hemisphere which has its centre at the origin and the origin and a radius of 6 units.
asked by gourav 
science
The two insulated beakers contain equal amounts of identical liquids. The temperature of Beaker A is 80°C. The temperature of Beaker B is 50°C. A copper rod connects the beakers. The system is then left alone for several hours. What would you expect to
asked by Isabel 
critical thinking
In the following sentence, identify the prepositional phrase, and tell whether it acts as an adjective or adverb. The children found the pictures in the book interesting. End of exam A. the pictures in; adjective B. The children; adjective C. in the book;
asked by Saddia 
mathematical physics
Using Green's theorum evaluate the integral [ integration from c x^2ydxxy^2dy] where c is the closed curve along the circle. x^2+y^2 = 4
asked by gourav 
critical thinking
A _______ is what you would write after you read an essay, analyze it, and write about some aspect of it. A. response paper B. classification essay C. pattern of development D. study guide my answer is a.
asked by Saddia 
chemistry
net ionic equation for reaction between copper carbonate and the hydroiodic acid
asked by Jeff 
maths
ABC is an isosceles triangle inscribed in a circle. If AB and AC is 2.5cm and BC is 14cm find the radius of the circle
asked by Anonymous 
math
Solve the initial value problem d^2x/dt^2+2dx/dt3x = 0, x(2π) =1, x(2π) = 13
asked by gourav 
critical thinking
When developing strategies for writing, which of the following is not a good strategy? A. Use school support and guidance B. Rely more on your own experience than on the readings assigned. C. Focus on learning and the process of learning. D. Plan for more
asked by Saddia 
geometry
Construct an equilateral of altitude 5.5 cm
asked by Anonymous 
Math help check
Which polynomial does the model represent? The model shows 1 black square block, 2 white thin blocks, 1 black thin block, 1 white small square block, 3 black small blocks. a –x³ + 2x² – 3x + 2 b. x² + x – 2 c. –x² – x + 2 d. –x² + x – 2
asked by Oscar 
Calculus 1
Gravel is being dumped from a conveyor belt at a rate of 20 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 7 ft
asked by TayB 
Calculus 1
Water is leaking out of an inverted conical tank at a rate of 12,000 cm3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 6 m and the diameter at the top is 4 m. If the water level is rising at a rate of
asked by TayB 
physics
How many circus balloons will it take to lift a 80.0 kg person? The pressure is 1.00 atmospheres. The temperature is 298 K. The air is composed of 20.0% oxygen and 80.0% nitrogen. Each balloon is a perfect sphere, 40 cm in diameter, filled with helium gas
asked by Van355@ 
Physics
A pendulum string has a length l = 4.0 ft. When the pendulum ball is released at 90 degrees to the vertical, it will swing down. A nail is located distance d below the point of suspension of the pendulum. Show that d must be at least 0.6l if the ball is to
asked by Nora 
History Check Please Reed
Before the Civil War most cattle were not (1 point) on the open range. on South Texas ranches.* slaughtered for their hides. shipped to cities in the northeast. 6. After the Civil War, (1 point) many plantations were divided into smaller farms.*
asked by SmartyPants 
science
The two insulated beakers contain equal amounts of identical liquids. The temperature of Beaker A is 80°C. The temperature of Beaker B is 50°C. A copper rod connects the beakers. The system is then left alone for several hours. What would you expect to
asked by Isabel 
computer code
Create a Flowchart and pseudocode. Create a class whose main method creates three arrays. The first array will contain five kinds of flowers  petunia, pansy, rose, violet, and carnation. The second array will contain the cost of each flower, respectively,
asked by Wayne 
chemistry
Which of the following chemicals are strong bases? You may select more than one compound. CH2=CH2 Ca(OH)2 NH3 RbOH
asked by danny 
Calculus 1
If two resistors with resistances R1 and R2 are connected in parallel, as in the figure below, then the total resistance R, measured in ohms (Ω), is given by 1/R= 1/R1+ 1/R2. If R1 and R2 are increasing at rates of 0.3 Ω/s and 0.2 Ω/s, respectively, how
asked by TayB 
chemistry
Which of the following chemicals are bases or can behave like bases? You may select more than one compound. Cu2+ RbOH CH3COO Br
asked by danny 
math
adult tickets are $17, student tickets are $9. how many adult and student tickets need to be sold to make a profit of $4,400?
asked by Anonymous 
math
A box contained some red, blue, and green markers. For every 5 red markers, there were 2 blue markers. For every 3 blue markers, there were 5 green markers. a.Find the ratio of red markers to blue markers to green markers. b.When 6 red markers
asked by jessi 
Math
1. Rishi ram obtained an installment loan for $3,000.00. He agreed to repay the loan in 6 monthly payments. His monthly payments is $516.50. What is the APR? MY ANSWER=0.33% 2. Tim Newman took out a simple interest loan of $1500 at a 10 percent interest
asked by N. 
CDA
The way it's used in childcare today, timeout A. should last for at least 30 minutes. B. should completely isolate the child from the rest of the class. C. is often misused. D. is the best way to discipline children of all ages. My answer is c
asked by Kaleisha 
English
For a intext citation do you place a source without a author with quotations and parentheses?
asked by Woody 
chemistry
Which of the following chemicals are bases or can behave like bases? You may select more than one compound. KOH PO43 NH3 F
asked by danny 
science
At 3:15 one afternoon, the temperature over the land reaches its highest value for the day — about 89°F. The temperature over the adjacent water is about 72°F. What would the expected weather conditions be at this time? A. Cloudy skies and a sea breeze
asked by sam 
English
I have question to do I have reword the sentence because it give the definition for food the Goetta, which is made from mixed pork, beef, oaks and seasonings, packaged into a roll and then fried and severed hot. I don't want it to turn up as plagiarism in
asked by m 
Math
Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y
asked by Heather 
Analytical Chemistry
Indicate whether the following halfcells would act as an anode or a cathode when coupled with a S.H.E. in a galvanic cell. Calculate cell potential: Pt/O2(800 torr)/HCl(2.5E5 M) I have not figured out a way to approach this problem. I know the nernst
asked by Steve 
chemistry
I'm adding these three atomic weights (40.1+12.0+48.0) together, and I got 100.1 How can I round my answer to three significant figures? thank you!
asked by ally 
English check
Which quote believes that all of us have the ability to love? A. "Love is a binding force between two things that compels them to come together..." B. "Yet we do have the capacity to love not only other humans, but animals as well." C. "love would not
asked by Anonymous 
Math
A document that measures 28 centimeters by 20 centimeters is enlarged by a scale factor of 3/2. What are the dimensions of the enlarged documents?
asked by Erica 
English
how do I analyze a story using tactics such as Formalist Biographical Psychological Historical Marxist New Historical Cultural Gender Feminist GLBTBC Mythology Reader response I have to analyze the story using any one of the tactics listed above.
asked by NJ 
Physics
a car goes over a circular hill of 50m radius at a constant speed of 20m/sec . What is the force of the car on the 600N driver at the top of the hill.?
asked by Anonymous 
ELA
in the poem "road not taken" what has worn the roads about the same?
asked by lulu 
Algebra
Find X. (X+a)(Xb)=X^2+5
asked by Yin 
Physics
A motor boat is traveling at a speed of 2.4 m/s shuts off its engine at t=0 . How far does it travel before coming to rest after 3 seconds it's speed have dropped to half of its original value ? Assume that the drag force of the water is proportional to v
asked by rush 
Math
Hello I need some help with these questions. A survey of 115 children found that 39 liked The Little Mermaid 43 liked 101 Dalmatians 56 liked Mickey Mouse 7 liked The Little Mermaid and 101 Dalmatians 10 liked The Little Mermaid and Mickey Mouse 16 liked
asked by N. 
Math
Amanda Sabino's taxable income is $20,900.00. How much will she pay in state tax? Tax Table First $2,000: 2.0% rate Next $4,000: 3.0% rate Next $4,000: 4.5% rate Over $10,000: 6.0% rate My answer$1254 Am I correct? Thank you!!
asked by N. 
CDA
Children are more likely to lose control when they're A. bored. B. listless. C. tired. D. active My answer is A
asked by Kaleisha 
math
The function h(t)= 2 + 50t  1.862t^2, where h(t) is the height in metres and t is the time in seconds, models the height of a golf ball above the planet Mercury's surface during its flight. a) What is the maximum height reached by the ball b) How long
asked by Rose 
MATH
for what value(s) of k does the equation kx  10  5x^2 have: a) one real solution b) two distinct real solutions c) no real solution
asked by Eloise 
math
For what values of k does the line y= x + k pass through the circle defined by x^2 + y^2 = 25 at: a) 2 points b) 1 point c) 0 points
asked by Elenor 
Physics
So...the question is that a coil spring has a force constant of k = 4.0 lb/in. When the spring's axis is inclined at an angle 30 degrees form horizontal, a Weight = 2.0 oz ball is propelled to a height of 6.0 ft. By how much must the spring have been
asked by Nora 
Physics
a 2.00 kg object has a velocity of 4.00i 3.00j m/s. What is the kinetic energy at this moment? What is the net work done on the object if its velocity change 6.00i +2.00j m/s
asked by Anonymous 
Physics
A motor boat is traveling at a speed of 2.4 m/s shuts off its engine at t=0. How far does it travel before coming to a rest if it is noted that after 3 seconds its speed has dropped to half of its original value? Assume that the drag force of the water is
asked by Anonymous 
Economics
China's slowdown Jan 20th 2015, 10:26 by S.R.  SHANGHAI MUCH of the analysis of China’s 2014 GDP data, which the government published today, has focused on the economy’s slowdown That is, on one level, understandable. Growth of 7.4% was China’s
asked by Remi 
chemistry
A 300 mL solution of 0.0500 M HCl is titrated with 1.00 M KOH. How many mL of the KOH solution will be needed to reach the equivalence point of this titration? A.5 mL B.10 mL C.50 mL D20 mL E15 mL The answer i got was E. 15ml
asked by danny 
English
For in textcitation with no author is this the right way to do this. I look it up Purdue Owl (“Pizza”).
asked by m 
homework
Which one of the following statements is an example of a clear message to a child? A. "Cleanup time. Hurry up." B. "What a rude thing to do!" C. "Stop that right now, and get ready for a nap." D. "Take your dirty dishes to the kitchen." I choose D
asked by liliana 
science
5.At 3:15 one afternoon, the temperature over the land reaches its highest value for the day — about 89°F. The temperature over the adjacent water is about 72°F. What would the expected weather conditions be at this time? A. Cloudy skies and a sea
asked by Angelina 
algebra
Find a quadratic model for the set of values: (2,20), (0,4), (4,20). Show your work. y = 3x^2  4x + 3
asked by Johnthyn 
math
What would be the final cost of a theater ticket that cost $6.00 and a discount rate of 15 percent was added to it?
asked by noah ater 
Math
Skate boarding boys= 2 girls=1 What percentage of the total students chose skateboarding? A. 10% B. 20% C. 30% D. None of these Is the answer D? Thank you
asked by Anonymous 
math _ HELP !!
two points on the graph of a linear functions are (3,5) and (1,4). Determine the equation of the function in slope form ? can someone help explain in step ? Thanks
asked by emily 
English
Is this how would do a in text citation?“a dish of coarsely ground corn kernels boiled with water”
asked by P 
math ans check
two points on the graph of a linear function are (3,5) and (1,4). Determine the equation of the function in sloppoint form. ans: m=1/2 I pick a point (1,4) yy1=m(xx1) y4=1/2(x(1)) y4=1/2(x+1) Thank you ^^
asked by em 
Science
hi could you please help with the following question: In humans, free ear lobes is dominant to attached ear lobes. A male who is pure breeding for free ear lobes marries a woman who is pure breeding for attached ear lobes. What type of ear lobes will the
asked by Lisa