Questions Asked on
May 15, 2013

Chemistry  Le Chateli.
3Fe(s) + 4H2O(g) Fe3O4(s) + 4H2(g) What happens when Fe(s) is added? Would the reaction shift right?
asked by scilover 
Please help! i dont understand this stuff!
Dewayne is comparing two checking accounts. One has a monthly fee of $7 and a percheck fee of $0.30, and the other has a monthly fee of $4 and a percheck fee of $0.40. What is the minimum number of checks Dewayne needs to write for the first bank to be a
asked by so confused! 
Financial Literacy
Terry and Sandra both found the sum of two 4digit numbers, but their results were not the same. If Terry made an error of addition by one in the thousands column and Sandra's result was correct, what was the difference between the larger result and the
asked by Tifini 
Math
Winnie can use up to 10 coupons when buying a box of DVDs. Each coupon is worth $3. She bought a box of DVDs for $56 less the value of her coupons. a)choose a variable to represent the number of coupons. b)Write an Algebraic expression that describes the
asked by HI 
sciencephysics
A worker sits at one end of a 183N uniform rod that is 2.80 m long. A weight of 107 N is placed at the other end of the rod. The rod is balanced when the pivot is 0.670 m from the worker. Calculate the weight of the worker
asked by karen 
chemistry
a balloon has a volume of 456 mL at a pressure of 1.0 atm. it is taken under water in a submarine to depth. where the air pressure in the submarine is 3.3 atm. what is the volume of the balloon? assume constant temperature?
asked by john 
World history; Check:P
How did Louis XVI’s weak leadership contribute to the growing crisis in France? Louis and both his wife didn't seem to care about governing. His wife always gave him poor advice and ended to spend a lot of money gowns, jewels, gambling, and gifts, which
asked by Unknown 
english
6. Which one of the following fragments is a prepositional phrase? A. During the darkest night B. Going to Cleveland C. Listening to her heart D. Completed her assignment I'm stuck between A & B please help me?
asked by Leo 
Maths! Check Answers
For questions 17–21, simplify the expression. 17. 7t4 • 7t4 49t8 14t4 49t16 14t8 18. –3(4x + 5) 7x + 15 7x – 15 –12x – 15 –12x + 15 19. 5k2(–6k2 – 2k + 6) –30k3 + 3k2 + 30k 30k4 – 10k3 + 11k2 –k4 + 3k3 + 11k2 –30k4 – 10k3 + 30k2
asked by Jman 
physics/chemistry(Thermodynamics)!!!!!helppppp!
In a certain chemical process,a lab technician supplies 254 j of heat to a system. At the same time,73 j of work are done on the system by iys surroundings.What is the increase in the internal energy of the system?
asked by duke 
Physics
When two tuning forks are stuck simultaneously, 3 beats per second are heard. The frequency of one fork is 510 Hz. A piece of wax is placed on the 510 Hz fork to lower its frequency slightly. If the beat frequency is increased, what is the correct
asked by dallas 
social studies
why did the author the item Ozified in the opening paragraphs of the article?
asked by Anonymous 
URGENT CHEMISTRY
Which of the following pairs of compounds will give a precipitate in a diluted solution? Question 4 options: A) Cu(NO3)2 and Na2CO3 B) KNO3 and NaCl C) MgCl2 and Ba(NO3)2 D) NH4Cl and Al2(SO4)3 ALL OF THEM ARE SOLUBLE? WHAT DO I DO?
asked by scilover 
Philosophy
LOGIC and ARGUMENTS – the simple elements Arguments are Composed of THREE PARTS: 1) Premises = basic, commonly accepted reasons – the “why’s,” and “how’s.” 2) Inferences = reasoned “guesses” or based assertions connecting conclusion to
asked by Lisa 
Chemistry Help Please
The concentration of hydroxide ions in a solution of nitric acid 0.2 M is: a. 2 x 1014 M b. 5 x 1014 M c. 5 x 107 M d. 2 x 101 M IS IT D)?
asked by scilover 
Science
A 0.2 kg object is released from rest at point A on a track that is onequarter of a circle with radius 1.6 m, as shown in the figure. It slides down and reaches point B with a speed of 4.8 m/s. Then it slides on a level surface a distance of 3 m until it
asked by T 
chemistry
balanced equation for the reaction of HNO3 + STARCH +KI
asked by lethabo 
physics
two lead spheres whose diameters are 20 cm and 2 cm are placed with centres 100 cm apart. Calculate the force of gravitation between them.(density of lead =11500 kg/m^3
asked by Dhananjay 
Algebra 1
For each event,circle the most appropriate term. 21. Six friends go to a movie.How many ways can they sit in a row of six seats? counting principle,combination,factorial, or permutation
asked by Janet 
WorldHistory
Why was the Congress of Vienna considered a success? The Congress of Vienna was consider a success because of three main outcomes. One Britain gained control over several strategic colonies and become the first superpower of the world. Two Russia extended
asked by (; 
business law
Allied Corporation in Boston offers a job to Carol, who lives in Denver. Carol orally agrees to work for Allied for two years. She moves her family to Boston and begins work. Three months later, she is fired for no stated cause. She files a suit against
asked by Anonymous 
chemistry
What are [H+] and [OH] for 0.01 M perchloric acid
asked by Krystal 
math analysis/ precalc
Assume the annual number of skin cancer deaths increases geometrically, instead of arithmetically. Use the same starting number of 9,300 in 2000 and 200,000 in 2050. Select the number closest to the ratio of number of deaths from year to year. A. 1.0655 B.
asked by Anonymous 
math analysis/ precalc
Assume the annual number of skin cancer deaths increases geometrically, instead of arithmetically. Use the same starting number of 9,300 in 2000 and 200,000 in 2050. Select the number closest to the ratio of number of deaths from year to year.
asked by Anonymous 
Accounting
Pug Corporation has 10,000 shares of $10 par common stock outstanding and 20,000 shares of $100 par, 6% noncumulative, nonparticipating preferred stock outstanding. Dividends have not been paid for the past two years. This year, a $150,000 dividend will be
asked by Tonya 
english
16. Which one of the following sentences includes an error in subjectverb agreement? A. Either June or her children are going to the movie tonight. B. Laverne, who's married, and Shirley, who's single, both walk their dogs. C. Neither Hannibal nor her
asked by alex 
Math
a manufacturer makes right triangular prisms like the one shown for refracting light. They will be packed in boxes 12.5 cm long, 2.5 cm wide and 22.5 cm high. How many prisms can fit the box?
asked by Alice 
geometry
Find the surface area of a cone with diameter 27 m and slant height 19 m. Leave your answer in terms of pie
asked by Hannah 
Chemistry
CaCO3(s) CaO(s) + CO2(g) What would happen if CO2 was removed? Would the reaction shift left? Does that mean CaCO3 increases and CaO and CO2 decrease ?
asked by scilover 
physics 11
a 4.00kg object traveling westward at 25.0m/!@#$%^&s a 15.0kg object at rest. the 4.00kg object bounces eastward at 8.00m/s. what is the speed and direction of the 15.0kg object?
asked by Kyla 
College Algebra HELP
Use the seven step method described in the book to graph the following rational function f(x)=(2x^2+x3)/(2x^27x) 1) Determine the symmetry of the function 2) Find the yintercept 3) Find the xintercept 4) Find the vertical asymptotes 5) Find the
asked by Rosie 
math
If a number increases from 47 to 70.5 what is the rate of increase?
asked by rachel 
Math
ted sells his homemade peanut butter for 1.60 a jar at the local farmers Market the jar is 8 cm in diameter and 10 cm high he decides he will also sell peanut butter in jats that are 16 cm in diameter and 20 cm high.What should he charge if he uses the
asked by Alice 
English
11. In which one of the following sentences is the simple subject also the complete subject? A. Crocodiles, quiet as logs, lurked on the riverbank. B. Detectives Homer Fry and Janine Small looked high and low for clues. C. Large and small dinosaurs stalked
asked by Leo 
English
Talk about the things you don't have to do on Sunday. I don't have to study hard. I don't have to see teachers at school. I don't have to see my homeroom teacher. I don't have to walk to school. I don't have to clean my classroom. I don't have to mop the
asked by rfvv 
chemistry
Islands in the middle of the oceans (for example, Great Britain, Hawaii, Bermuda) tend to have more stable climates with smaller temperature fluctuations than regions of the same mass surrounded by land (for example, continents). Use your knowledge of heat
asked by jader 
english
4. In which one of the following sentences does the subject come after the verb? A. Brock traveled over miles of dirt roads. B. On the next street, you'll find the shoe shop. C. Whenever he's in town, Jeremy likes to go fishing. D. Where is my Elvis CD? I
asked by Leo 
Math
a manufacturer makes right triangular prisms like the one shown for refracting light. They will be packed in boxes 12.5 cm long, 2.5 cm wide and 22.5 cm high. How many prisms can fit the box?
asked by Alice 
math
a jar contains two red and five yellow marbles. A marble is drawn at random and then replaced. A second draw is made at random. find the probability that both marbles are red?
asked by Olivia 
Calculus
Three forces with magnitudes 75 pound, 100 lb, and 125 pound act on an object at angles of 30 degrees, 45 degrees, and 120 degrees respectively. Find the direction and magnitude of the resultant vector.
asked by Elyse 
math
Draw and label a rectangle that has an area of 18 square units? . How much is that in width and length.
asked by justin 
Math 7th grade
I have a question on math if I start to look for a object hidden by making the center of a field as (0,0), with coordinates giving distances in yards. Coordinates to the north or east are positive and coordinates to the south or west are negative. And I
asked by Maxy 
Anatomy & Physiology
Although all of the structures of the respiratory system are in contact with the circulatory system, which respiratory structure is most closely associated with dense network of capillaries? A. pharynx B. vocal folds C. trachea D. alveoli
asked by Linda 
Math Growth & Decay
a) A growth factor of 1.22 corresponds to a rate of? b)a growth rate of 6.7% corresponds to a growth factor of? c)a decay factor pf 0.972 corresponds to a decay rate of? d)A decay rate of 12.3% corresponds to a decay factor of?
asked by kim 
Anatomy & Physiology
The scientific binomial name of a species is Canis vulpis. Which of the following is true? A. the species belongs in the family Canis B. the species belongs in the genus vulpis C. the species belongs in the genus Canis D. the species belongs in the family
asked by Linda 
Math
When the queen counted her jewels, she found that she had five pearls for each diamond, two opals and three rubies for each diamond, and two emeralds for each opal. If she has three diamonds, how many jewels does she have altogether?
asked by Anonymous 
Grammar (Writeacher)(or Ms. Sue)
For each of the following sentences, choose the correct verb in parentheses, and write it on your paper. 1. Marines and paratroopers from the United States (was, were) landing in France on DDay in 1994.
asked by Anonymous 
geometry
The Transamerica Pyramid in San Francisco is shaped like a square pyramid. It has a slant height of 856.1 feet and each side of its base is 145 feet. Find the lateral area of the building.
asked by Hannah 
english
As it sailed south, Lord Nelson's great ship, Victory, met the Spanish fleet near Trafalgar. 12. The simple subject of the sentence is A. Lord Nelson. B. ship. C. fleet. D. south. I think best answer is B?
asked by alex 
math
Amanda bought a car for $8,500. Her loan was for five years at a 4.6% interest rate. How much will Amanda pay for her car total, including interest?
asked by Anonymous 
Seven step method
Use the seven step method described in the book to graph the following rational function f(x)=(2x^2+x3)/(2x^27x) 1) Determine the symmetry of the function 2) Find the yintercept 3) Find the xintercept 4) Find the vertical asymptotes 5) Find the
asked by Rosie 
math
Kris wants to order a personalized license plate for her car. The plate is to have the 4 letters KRIS followed by any two digits. Part A: How many different ways can the two digits be arranged? Part B: Suppose the plate has KRIS followed by two additional
asked by Anonymous 
hellllllllllllllp maaaath
ABCD is a square. P is a point within ABCD such that PA=1,PB=29 and PC=41. What is area of square ABCD ?
asked by Anubhav 
english
(1) To James, good form came above all else. (2) Therefore, on being introduced to Lady Weathers, he bowed, took her hand, and kissed it lightly. (3) Then, glancing upward at Lady Weathers's face, he saw a look of consternation. (4) Blushing with
asked by lola 
Chemistry
Calculate the pressure exerted by a 14.6 mol NH3g in a 3.2 L container at 15.0 celcius using the Van der Waals equation.
asked by Andrea 
math
Explain how to factor 5x^2  125.
asked by paige 
biology department
Approximately how many mL of 5% BaCl22H2O solution would be required to precipitate all the sulfate if we assume that your samples are pure sodium sulfate? Assume that the density of the barium chloride solution is 1.00 g/mL
asked by negin 
math
The Transamerica Pyramid in San Francisco is shaped like a square pyramid. It has a slant height of 856.1 feet and each side of its base is 145 feet
asked by Hannah 
Upperlower boundssolved
find the upper and lower bounds for definite integral sign, a=1, b=6, sqrt(x) dx. partitions are as follow: x0=1, x1= 3, x2=6 of the interval [1,6] upper sum: 3sqrt(3) + 3sqrt(6) lower sum: 3sqrt(3) + 3 but this is incorrect. can someone explain what i did
asked by Eric 
english
1. In which one of the following sentences does the verb agree with the subject? A. There is a million reasons why I shouldn't go. B. Here is the reasons we can't start the car. C. Who is the people in the photograph? D. The book that explains the plays is
asked by Leo 
math
Find the surface area of a cone with diameter 27 m and slant height 19 m. Leave your answer in terms of . Note: You do not need to include in your answer
asked by Hannah 
english
Hey, can naybody please look wheter I wirte it all right? Thanks :) Negative Concord  Means that there must be more then one negative word in a sentences  Can be find in some languages like French, Spanish or Russian > French: Je na vais nulle part.
asked by Minnie 
Physics
An open organ pipe of length 0.744411 m and a closed one of length 1.10545 m are sounded together. What beat frequency is generated by the first overtone of the closed pipe with the fundamental of the open pipe? The speed of sound is 340 m/s. Answer in
asked by chris 
Algebra
Lisa is cutting carpet for a rectangular room. The area of the room is 324ft^2 . The length of the room is 3 feet longer than twice he width. What should the dimensions of he carpet be?
asked by Codey 
Trigonometry
a. Use graphs to decide if the equation is an identity. b. If the equation is not an identity, find a value of the variable that makes the equation false. sin(pi/2+Beta)=1+sinBeta
asked by Taylor B 
WorldHistory
How did Louis XVI’s weak leadership contribute to the growing crisis in France? Louis and both his wife didn't seem to care about governing. His wife always gave him poor advice and ended to spend a lot of money gowns, jewels, gambling, and gifts, which
asked by (; 
Grammar (Writeacher)
Revise the sentences below in which "who" or "whom" is used incorrectly. Then, indicate how "who" or "whom" is used in each sentence. 1. To play Kick the Can, the group must make a decision about whom will be counting. 2. Everyone else must hide from the
asked by Anonymous 
Science
Does mass increase or decrease when the distance stays the same and the force of gravity between two objects decreases?
asked by Anonymous 
computer
You have inserted an image within a paragraph of text in a word 2007 document. You want the edges of the image to fade into the document. How do you accomplish this? A.select image and slide the fade controller B. format the image and check the soft edge
asked by nana 
english
Either Mark or his students _______ on the ferry boat. 13. If you want to use the present tense, which word would best fill the blank? A. were B. are C. was D. is B is the only present tense?
asked by alex 
english
(1) We decided to climb Mt. Rainer, but it was a long, hard journey to Washington State from Medford, Oregon. (2) We were worried about our likely sucess in the cold enviroment of the upper slopes. (3) For one thing, Marty was broke and anxius about having
asked by lola 
MATH
7. Tina lost 3 pounds on the first week of her diet. She gained a pound on the second week, and then lost 2 pounds a week during every week afterwards. She has been dieting for a total of 13 weeks. How many pounds has Tina lost in all? A. 26 pounds B. 24
asked by lola 
math
Ariel makes a sandwich using four kinds of Italian lunch meat: A, B, C and D and two kinds of Italian cheese: X and Z. Ariel's sandwich has a single layer of each type of meat and a single layer of each kind of cheese, but he also wants to make sure that
asked by Dany 
Grammar (Writeacher)
Write the subject of each sentence below. Then, choose the correct verb in parentheses, and write it next to the subject. 1. It is December 7, 1941, and there (is, are) a surprise attack on Pearl Harbor, Hawaii. 2. Beyond the horizon (looms, loom) 350
asked by Anonymous 
English
The following questions are for APA 6th Edition standards: 1. Each time you paraphrase content or ideas taken from the work of another author you are required to... A) credit the source in the text and include the author(s) and year B) Place the
asked by Anonymous 
english
15. Which one of the following is a runon sentence? A. Jerry told me he likes June, but Hank likes Julie better. B. I would talk to Frank if I knew him, but people don't ever talk to him. C. I'm not a fan of wrestling, but Leslie is. D. I think Frank
asked by alex 
Physics
A point charge of charge 1 mC and mass 100 g is attached to a nonconducting massless rod of length 10 cm. The other end of the rod is attached to a twodimensional sheet with uniform charge density σ and the rod is free to rotate. The sheet is parallel
asked by hans 
geometry
diagonals of pqrs intersect each other at point a also ar = 3ap and as= 3aq, prove that sr =3pq
asked by rishi 
math
Michael Reeves, an ice cream vendor, pays $17.50 for a fivegallon container of premium ice cream. From this quantity he sells 80 scoops at $0.90 per scoop. If he sold smaller scoops, he could sell 98 scoops from the same container; however, he could
asked by amy 
Physics
How long is the sound wave if frequency is 320 Hz? Speed of sound =340 m/s
asked by Michaela 
Calculus
Using the fourstep process find f(x)= 13 I know it is 0 and how to do the 4step process, I just don't know how to do it without an exponent. Help please!
asked by Jennifer 
Physics
A frog is jumping around its pond. At some time t , the frog is in midjump and has a kinetic energy of 1 J and a momentum of magnitude 0.5 kg⋅m/s . What is the mass of the frog in kg?
asked by John 
accounting
As in previous homework, assume you work for a company that has to pay an obligation of USD 1 mln in 1.5 years from today. There are two bonds on the market  one is a 3%coupon bond, has one year to maturity and is traded at price 101.7854. Another has 2
asked by Anonymous 
math
write each decimal as a mixed number.5.25 and 9.12 WAS never taught this. Thank you
asked by sam 
Chemistry
Is there a difference between SiO2(aq) and H4SiO4?
asked by Mike 
psychology
Exhibit a behaviour that you do every day that you think is influenced by heredity and environment. Describe how three of the seven modern perspectives/approaches of psychology would be used to explain your behavior. Make sure that your discussion is not
asked by mymalaca 
Math
A team has won 50% of the 60 games it played, find the number of games the team must win in succession to increase its winning percentage to 60%?
asked by Brooke 
Anatomy & Physiology
A characteristic of smooth muscle, not seen in skeletal or cardiac muscle, is? A. intercalated disks B. peristalsis C. sarcosomes D. longer, cylindrical myofibrils
asked by Linda 
math
what is the rule of the input output table input 2 output 11 input 3 output 15 input 5 output 18 input 8 output? what is the rule?
asked by emily 
Science
Two point charges +q=1 ìC and −q=−1 ìC with mass m=1 g are fixed at the positions ±r ⃗ 0 with r 0 =1 m . The charges are released from rest at t=0 . Find the time ô in seconds at which they collide.
asked by Andrew 
Geometry
There is a 4×6×18 inch cereal box lying on the floor. It was placed face down on one of its 6×18 inch face. An ant is located at one of the bottom corners of the box. It wants to reach the opposite bottom corner (of the 6×18 face on the floor), by
asked by Anonymous 
accounting
An amortizing bond is a bond which pays the principal not at its maturity, but prior to its maturity, according to some schedule, typically (but not necessarily) in equal amounts. In particular, consider a floatingrate amortizing bond, which pays 25% of
asked by Anonymous 
Algebra 2
The graph of 5x  9y^2 = 12  4y is the graph of a(n)______. a. circle b. ellipse c. hyperbola d. parabola C?
asked by Lily 
math
What is the portion if the base is 900 and the rate is 12¾ %
asked by amy 
algebra
is this a arithmetic, or geometric sequence 96,48,24,12,......
asked by tammy 
SumsCalc
find the upper and lower bounds for definite integral sign, a=1, b=6, sqrt(x) dx. partitions are as follow: x0=1, x1= 3, x2=6 of the interval [1,6] upper sum: 3sqrt(3) + 3sqrt(6) lower sum: 3sqrt(3) + 3 but this is incorrect. can someone explain what i did
asked by Eric 
accounting
Consider two bonds on the market: one zerocoupon bond, maturing in exactly 1 year from today and trading at 99% of its par value; another is a 2% coupon bond, maturing in exactly 2 years from today, trading at 101 of its par value. Coupons are being paid
asked by Anonymous 
Math (Geometry)
A point P is given outside of a circle Γ. A tangent from P to Γ touches Γ at T with PT=45. A line from P cuts Γ at the 2 points A,B. If PA=25, what is the length of PB?
asked by Dan 
Pyhsic...Elena,please help....
A point charge of charge 1 mC and mass 100 g is attached to a nonconducting massless rod of length 10 cm. The other end of the rod is attached to a twodimensional sheet with uniform charge density σ and the rod is free to rotate. The sheet is parallel
asked by pyhsicamateur 
Science
which of the following is an example of a mineral? silver, lava, fossils, sand, I say Lava
asked by D 
English
1. Based on the above information, tell the class about your weekend house. 2. Based on the information above, introduce your weekend house to your classmates. (Which one is grammatical? are both OK?)
asked by rfvv 
Science (bobpursley)
Does mass increase or decrease when the distance stays the same and the force of gravity between two objects decreases?
asked by Anonymous 
social studies
which of the following contributed to Britain's industrial revolution? A. large labor force C. powerful monarchy B. decreasing food D. decreasing money
asked by Katie 
accounting
The goodwill relates to the purchase of net assets comprising an operation. The recoverable amount of the goodwill at 30 June 2013 was $10,000.
asked by abcde 
maths urgent
Plz help me solve these sums i will be great full 1.How many non congruent right triangles with positive integer leg lengths have areas that are numerically equal to 3 times their perimeters 2.A triangle with side lengths in the ratio 3:4:5 is inscribed in
asked by ramesh reddy 
Algebra
Suppose x and y are real numbers and 4x+3xi+yi−43=2y+2xi−x+2yi+5i . What is the product xy .
asked by Andrew 
Chemistry; _
Help? How would you do these? /: Draw electron dot diagrams for the following: Na Mg As F Ne
asked by (; 
Anatomy & Physiology
The scientific binomial name of a species is Canis vulpis. Which of the following is true? A. the species belongs in the family Canis B. the species belongs in the genus vulpis C. the species belongs in the genus Canis D. the spoecies belongs in the vulpis
asked by Linda 
Math
It is 3 miles from Sally's home to school. How many feet is that?
asked by Anonymous 
Calculus
An object is traveling along the x axis so that its speed is given by v(t)=t^27t+10 m/s. (a) Find the times when the object is at rest. (b) Find the acceleration at both of these times. Interpret the acceleration in terms of the motion of the object, ie
asked by Mike 
calculusextrema
Find and classify the relative maxima and minima of this function f(x)= definite integral sign where a=0 and b=x. t^24/(1+(cos^2(t)) dt what should my value for u be? is it just t. not sure how to even tackle this problem.
asked by Eric 
definite integral
Use the Riemann Sums corresponding to 5 inscribed rectangles of equal width to approximate the integral a= 1, b= 3, (1/x)dx this is all for definite integral i just know x1=1.4, x2=1.8, x3=2.2, x4=2.6, x5=3.0 how do i continue
asked by Eric 
biology
For each of these restriction enzymes, determine whether or not the enzyme would cut the normal, Mutant A, Mutant B, or Mutant C DNA sequences described in part (g) and select your answers in the table below:
asked by lily 
Math
A=hb/2 solve for b
asked by amy 
math(galerkin,collocation)
can some one plz help how to make trial function for solving equations in collocation and galerkin methods which satisfy the given boundary conditions. example y"+y=3*square(x) with y(0)=0 and y(2)=3.5. is there some method of making trial func or we have
asked by jesse erika 
accounting
Current spot rate curve is given by 1 year 2 years 3 years 4 years 0.5% 1% 1.4% 2.1% Provide a forecast of expected spot rates one year from today.
asked by Anonymous 
lifeorientation
Discuss 10 ways in which the environmentAl health hazard can impact negatively on ones health
asked by paul 
life orientation
In 1015 lines critically(in details) discuss 5 ways in which the environmental problem(earthquake) impact on the community.provide relevant sources to support your claims. (10 marks)
asked by Retang 
College Algebra
How do you work out this problem? 3x3 + 2x2 + 3x+2 I showed three different people my work an they said I did it wrong I am so confuse.
asked by Crystal 
chemistry
The surface tension versus log concentration for two surfactants are shown below. Describe in not more than 5 sentences how the two surfactants can be so different.
asked by anonyms 
Economics
Factors may reduce the demand for opec overtime
asked by Motso 
life orientation
major lifestyle diseases(sexually transmitted infections including hiv and aids)
asked by tebogo 
analytical geometry
make a full analysis of algebraic equation of y=(x2)^2(x^29)
asked by meagan 
Algebra 2
The graph of 11x  x^2  4y^2 = 2y  16 is the graph of a(n) ________. a. circle b. ellipse c. hyperbola d. parabola C?
asked by Lily 
psychology
Provide detailed descriptions of individuals based on careful observation or formal psychological testing Sigmund Freud is famous for
asked by marceller 
ethics
Simone de Beauvoir warns against “ethical recipes,” suggesting instead that life and ethics are both inherently ambiguous. Choose one of the ethical “recipes” or “methods” offered by Manning, Kant, Mill. What ambiguities remain even after the
asked by Mary 
math
What do you notice about lines of symetry in regular polygons?
asked by kina 
algebra financial polynoomials
Compounded annually, P dollars is invested at annual interest rate r for 2 years. If the interest is compounded annually, then the polynomial P (1+r)^2 represents the value of the investment after 2 years. Rewrite the expression without the parentheses.
asked by tia 
interest
Based on simple interest, find the total amount saved or owed. principal = $1700; rate = 6%; time = 5 years
asked by p 
D/dt
Calculate d/dt when a=t^2, b=2 and sqrt(x+1)dx. My answer turns out to be incorrect despite my checking it several times. I got 2/3t* sqrt(t^2+1) Can someone explain to me what is wrong with my answer and how to go about obtaining it the right way? Thank
asked by Leah 
Integral
Find dy/dx and d2y/dx2 if y= definite integral sign where a= 1 and b= 3x 1/(t^2+t+1) dt how do i even start. do i integrate and then plug in a and b? plz help.
asked by Eric 
ExtremaCalc
Find and classify the relative maxima and minima of this function f(x)= definite integral sign where a=0 and b=x. t^24/(1+(cos^2(t)) dt what should my value for u be? is it just t. not sure how to even tackle this problem.
asked by Eric 
science
how can you define the problem how far can you make a rubber stopper fly through the air if the only force applied comes from a gas forming chemical reaction
asked by molly 
Math
a rectaguler tub with dimesions 2m x 1m x 0.5 is filled with water using a pail of radius 0.1m and height 0.35. How many pails of water will be required? give yor answer to the nearest pail.
asked by Alice 
Calculus
describe the surface and give traces : x = y^2  4z^2
asked by Elyse 
science
Exhibit a behaviour that you do every day that you think is influenced by heredity and environment. Describe how three of the seven modern perspectives/approaches of psychology would be used to explain your behavior. Make sure that your discussion is not
asked by padarnalat 
Medical Office
As a medical office manager what is a fun slogan or buzzwords that I could use to help my employees to remember the coding process the types of procedures and each three CPT categories?
asked by judy 
Algebra
What is the largest prime factor of 5^8 +2^2 ?
asked by Sarah 
Physics
Two point charges +q=1 ìC and −q=−1 ìC with mass m=1 g are fixed at the positions ±r ⃗ 0 with r 0 =1 m . The charges are released from rest at t=0 . Find the time ô in seconds at which they collide.
asked by Sarah 
Math
Determine the last three digits of 10,000,000 ‡” (n^7+n^5 ) n=2
asked by Anonymous 
accounting
Independently of the previous question, assume s1=1.2%,s2=1.5%. Find f1,2.
asked by Anonymous 
Anatomy & Physiology
The nonliving matrix of the connective tissue through which the blood cells freely flow is? A. plasma B. extracellular fluid C. intracellular fluid D. submucosa
asked by Linda 
Math (Geometry)
ABCD is a parallelogram with side lengths AB=15,BC=10 and ∠ADC=75∘. A point P in the interior of the parallelogram is chosen such that ∠APD+∠CPB=180∘. What is the measure (in degrees) of ∠PAD+∠PCB?
asked by Dan 
history
When postwar expansion slowed in the 1950s, an economic stimulus was provided by? A. Cold War spending. B. the construction of Levitt Towns C. the baby boom D. increased consumer goods manufacturing.
asked by garnisha 
Childcare
which one of the following most typifies what teachers should ask themselves as part of the antibias approach? A am i preparing adequately to work with children under my care? B do i show a perference for children who most closely fit my own ethnic,
asked by Samoy 
trig
There are 15,000 endive lettuce seeds in an ounce and 300 seeds in a packet. The seeds cost $1.50 per packet. What is the cost, in dollars, of one ounce of seeds?
asked by Anonymous 
calculus solved
evaluate integral definite integral sign a=1 b=8 4(x^(2/3)+14)^3/((x^(1/3))) dx I get u= x^2/3 + 14 then du= 2/3 * x^(1/3) dx 6 { u^4/4  a=1 b=8 Then I get 3u^4/2  a=1 b=8 20481.5= 2046.5 Is this correct. thank you all.
asked by Eric 
Anatomy & Physiology
The nonliving matrix of the connective tissue through which the blood cells freely flow is the? A. plasma B. extracellular fluid C. intracellular fluid d. submucosa
asked by Linda 
psychology
Exhibit a behaviour that you do every day that you think is influenced by heredity and environment. Describe how three of the seven modern perspectives/approaches of psychology would be used to explain your behavior. Make sure that your discussion is not
asked by gozok123 
integral
Find dy/dx and d2y/dx2 if y= definite integral sign where a= 1 and b= 3x 1/(t^2+t+1) dt how do i even start. do i integrate and then plug in a and b? plz help.
asked by Eric 
general
how can the plan of action help you address a current problem or challenge you are having with school
asked by janet 
Anatomy & Physiology
A researcher develops a new drug that kills cells by preventing transcription. The most direct effect of the drug is to prevent cells from? A. making new DNA B. exporting substances to the cytoplasm C. breaking down substances in the cytoplasm D. making
asked by Linda 
finance
what is the future value of $2000.00 given that it will be held in a bank for 9 years and earn an interest of 4%?
asked by matt 
Grammar (Writeacher)(or Ms. Sue)
On your paper, write the correct verb from each pair in parentheses. 1. Any soldier or civilian who (was, were) involved in the war often faced a lifethreatening situation. 2. Either Belgium or Holland (was, were) chosen by the Germans for an early
asked by Anonymous 
algebra 1
Compare y=1/(x+3)+3 and y=1/x
asked by Jan 
Physics
Jemima is sanding some floorboards with an electric sander which has a power rating of 360W. Jemima has the sander on for 45 minutes. The Sander is only 55% efficient. The electricity supplier charges 14.8p per kWh. What will be the cost of the 'wasted'
asked by Need Help ASAP 
math
Is 0·50 the same as1/2
asked by jay 
math
The probability that a positive divisor of 60 is greater than 9 can be written as a/b, where a and b are coprime positive integers. What is the value of a+b?
asked by Dany 
Math (Probability)
When Lino submitted an essay for his English class, it was 9 pages long. Lino's essay had errors on pages 2 and 7. If the teacher chose 3 pages uniformly at random to read, then the probability that she didn't read any of the pages with errors can be
asked by Dan 
Math (Geometry)
ABC is a triangle with a right angle at A. M and N are points on BC such that AM is the altitude, and AN is the angle bisector of ∠BAC. If CN/NB=21, what is CM/MB?
asked by Dan 
life orientation
provide 5 (or more) ways in which you critically discuss how life style /behavior disease impact on teenager.the disease is hiv and aids.
asked by tebogo 
ethics
Both Nietzche and Wittgenstein raise the issue of the morality of morality. In other words, they ask "Why should someone be good?" Describe the different ways in which Wittgenstein and Nietzsche understand the human moral predicament i.e. the challenge of
asked by david 
chem
the mass of the oxygen (o2) in a room is 0.0568 grams. How many oxygen molecules are in the room. 2 conversions are needed.
asked by rachel 
U.S. History
growth and expansion of the U.S. information westexpansion eastgrowth
asked by anonymous 
english
Diagram this sentence Pastors do Gods work
asked by Anonymous 
Math
When constructing a cumulative histogram do you use the frequency or cumulative frequency
asked by Kiki 
punnet square
Why punnet square is improtant ?
asked by 123 
math
What is 7,000 decreased by 62%?
asked by rachel 
Math
Danski brother farms planted 370 rows of tulips.each row was 20 meters long. What is the total length of the rows? Write your answer in kilometers.
asked by Anonymous 
physics
A runner dashes from the starting line (x=0) to a point 108 m away and then turns around and runs to a point 19 m away from the starting point in 23.4 seconds. To the nearest tenth of a m/s what is the average speed?
asked by giggles 
businessmathamatics
using derivative as a rate measure prove the following'if the area of the circle increases at a uniform rate then the rate of increase of the perimeter varies as the radius of the circle'
asked by roshiniramaraju 
science
10 ways in which the environment helth hazard can impact negatively on ones health
asked by thabo theletsane 
trig
Sinxcosy(cotxtany1)
asked by Victor L. 
Science
Is the near side (facing earth)always the dark side?
asked by Anonymous 
science
can gardens count as using agricultural land?
asked by Anonymous 
Math
How do I identify the initial value and the growth or decay for these problems? a) Q=25000 x (1/2)^t b) y=350 x 5* c) N=5000 x (9/10)^t
asked by charles 
Leadership Quality
Is staying after school to help file papers and grade papers a leadership quality?
asked by Celest 
statistics
sample sizes of 5000, find the margin of error for each of the following sample proportion values: 0.1, 0.3, 0.5, 0.7, and 0.9
asked by MYRON 
math
Simplify positive exponents 2n.(3n)
asked by demolley 
math
write each mixed number as a decimal.3 and seven tenths. 4 and one half how??
asked by sam 
ECC
i don't know how to solve sbout (4,4)(2,6)?
asked by baw 
trig
Sinxcosy(cotxtany1)
asked by Victor L. 
maths
if a/b+b/a= 1,then a^3b^3 = ????????
asked by tuhituhi 
maths
if a/b+b/a = 1,then a^3+b^3 =????????????????????
asked by tuhituhi