Questions Asked on
April 24, 2012

chemistry
Calculate the pH and percentage protonation of the solute in an aqueous solution of 0.39 M quinine if the pKa of its conjugate acid is 8.52.
asked by bob 
Physics
1) Which control on a music player or television set allows you to increase or decrease amplitude of the sound waves that come out of it? 2)Ripple tanks are used to observe twodimensional waves. What should be the name of the amplitude control for
asked by G 
chemistry
given the following data: S(s)+3/2 O2(g)>SO3(g) H=395.2 kj 2SO2(g)+ O2(g)>2SO3(g) H=198.2kj calculate H for the reaction S(s)+ O2(g)>SO2(g)
asked by rame 
statistics
The ages of commercial aircraft are normally distributed with a mean of 13.0 years and a standard deviation of 7.5 years what percentage of individual aircraft have ages greater than 15 years assume that a random sample of 49 aircraft is selected and the
asked by Tanya 
physics
A hypodermic needle consists of a plunger of circular crosssection that slides inside a hollow cylindrical syringe. When the plunger is pushed, the contents of the syringe are forced through a hollow needle (also of circular cross section). If a 4.0 N
asked by lenny 
Math
Three ducks and two ducklings weigh 32 kg. Four ducks and three ducklings weigh 44kg. All ducks weigh the same and all ducklings weigh the same. What is the weight of two ducks and one duckling? 20kgs?
asked by Rezu 
Chemistry
Maleic acid is a carbonhydrogenoxygen compound used in dyeing and finishing fabrics and as a preservative of oils and fats. * In a combustion analysis, a 1.054\rm g sample of maleic acid yields 1.599 \rm g of \rm CO_2 and 0.327 \rm g of \rm H_2O. * When
asked by Shelby 
Chem
3. Chalcocite is an ore from which copper can be extracted for commercial use. The formula for this important ore is Cu2S. In the laboratory it is formed by the following reaction: 2Cu + S ¨ Cu2S The reaction takes place in laboratory conditions that
asked by Anonymous 
Math
Steinwelt Piano manufactures uprights and consoles in two plants, Plant 1 and plant 2. the output of plant 1 is at most 300/month, and the out put of plant 2 is at most 250/month. theses pianos are shipped to three warehouses that serve as distribution
asked by Terri 
chemistry
A 0.185 M solution of a monoprotic acid has a percent ionization of 1.55%. Determine the acid ionization constant (Ka) for the acid.
asked by cindy 
English
Choose the progressive or emphatic verb tense that is used in each sentence. 18.Ms. Palmer has been organizing the class schedules for us. present perfect progressive past progressive present progressive 19.We had been listening to the radio when the
asked by heather 
chem
calculate the concentration of borate ion for a titration when 6.0998g borax is dissolved in 100mL of water and titrated with 25.5mL of HCl
asked by Jess 
Physics
Water has a density of 1000kg/m^3. The depth of a swimming pool at the deep end is about 4m. A)What is the volume of a column of water 4m deep and 1m^3 in crosssectional area? B)What is the mass of this column of water? C)What is the weight of this column
asked by Sara 
Physics
For a record playing at 45 rpm, find the frequency and the angular velocity. Frequency= Angular velocity=
asked by Allen 
math
A company begins a radio advertising campaign in Chicago to market a new soft drink. The percentage of the target market that buys a soft drink is estimated by the function f(t)=100(1e^0.01t), where t is the number of days of the campaign. After how long
asked by julie 
chemistry
In the carbonic acid equilibrium system, what happened to the size of the size of the balloon upon addition of more acid (HCl) and also what happened to the balloon upon addition of NaOH, was this expected? why or why not. ( show answers using equilibrium
asked by kims 
Auburn
Have a sack of jelly beans5 different colorshalf are red 1/6 green 1/6 yellow 1/12 blue 6 blackhow many of each color and how many in all
asked by Rose 
spanish
Necesito al doctor Ramírez, un médico que mucha experiencia en cirugías
asked by Anonymous 
chemistry
You have 53 g of aluminum at25 degrees C. How much heat must be added to raise its temperature to 139 degrees C? Assume the specific heat of aluminum is 903 J/kg · degrees C. Answer in units of J
asked by please help 
Basic Dressmaking Processes
In order to produce a professional looking garment, pressing should be done?
asked by linda 
mathematics
A spring with a mass of 4 kg has damping constant 28, and a force of 12 N is required to keep the spring stretched 0.5 m beyond its natural length. The spring is stretched 1 m beyond its natural length and then released with zero velocity. Find the
asked by Marwan 
statistics
A history professor finds that when he schedules an office hour at the 1030 am time slot an average of 3 students arrive. Use the poisson distribution to find the probability that in a randomly selected office hour in the 1030 am time slot exactly 5
asked by Sabrina 
AP LiteratureMacbeth
How does the banquet scene blur the clearcut and commonsense distinction that most of us make between the real and imaginary? In what other scenes has this distinction been blurred?
asked by Lilly 
Accouting
Vacation pay payable is reported on the balance sheet as a(n) a. current liability or longterm liability, depending upon when the vacations will be taken by employees b. current liability c. expense d. longterm liability it's not b
asked by Ricki 
math
A spring with a mass of 4 kg has damping constant 28, and a force of 12 N is required to keep the spring stretched 0.5 m beyond its natural length. The spring is stretched 1 m beyond its natural length and then released with zero velocity. Find the
asked by Marwan 
Science
Three negatively charged spheres, each with a charge of 4*10^6C are fixed at the vertices of an equilateral triangle wise sides 20cm. Calculate the size and direction of the net force on each sphere.
asked by Tsoanelo 
chemistry
the heat of fusion water is335 J/g. The heat of evaporization of water is 2.26 kJ/g, the specific heat of ice is 2.05 J/Deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much heat would be needed
asked by Randy 
Enviro Science
23. Which of the following does NOT describe an effect of the Industrial Revolution? a. Fossil fuels became more important energy sources b. The amount of land and labor needed to produce food increased c. Artificial substances replaced some animal and
asked by mysterychicken 
English
I have to write a argment Paper and it is based on Native Americans traditional culture and beliefs are or are not valuable in today's world. I want to write a paper on how Sioux, Kiowa, and Cheeroke related. I don't know it this is a good thesis: Native
asked by La 
acc 100
Metzger Company compiled the following financial information as of December 31, 2010: Revenues $140,000 Metzger, Capital (1/1/10) 70,000 Equipment 40,000 Expenses 125,000 Cash 35,000 Metzger, Drawings 10,000 Supplies 5,000 Accounts payable 20,000 Accounts
asked by Anonymous 
6th GMath
1.Which of the following best describes the graph of x > 2 ? A. Closed dot at x = 2, and shading to the right B. Closed dot at x = 2, and shading to the left C. Open dot at x = 2, and shading to the right D. Open dot at x = 2, and shading to the left
asked by Lauren 
Chemistry
A 1.8 mole sample of a compound weighs 195 g and is found to be 11.18% H and 88.82% C. What is the molecular formula for the compound?
asked by annabel 
Algebra 2
Introduction to quadratic equations? If you solve the equation by completing the square, fill in the blanks. 9x^2+9x+4=0 x^2+x+blank=4/9+blank
asked by Chelsea:) 
geometry
a closed box of uniform thickness is made of wood 1cm thick. Its extenal dimensions are 6cm and 5 cm by 4 cm. Find the a. volume of the wood used in making the box. b. the capacity of the box, given that the cover is full length and full width c. The
asked by lindsay 
physics
a car of mass 3000kg moving at 20m/s is suddenly brought to a stop when a deer crosses the road. if a braking force of 300,000 is needed to bring the car to a stop, what was the duration of the force?
asked by mark 
science
What will be the final temperature if 1600 cal of heat is given to an ice block of mass 20 grams?
asked by shankar 
chemistry
the heat of fusion of water is 335 J/g. How much heat would be required to melt 97.8 g of ice
asked by Randy 
calculus
A drone aeroplane is flying horizontally to a constant height of 4000 ft above a fixed radar tracking station. At a certain instant the angle of elevation theta is 30 degrees and decreasing, and the speed of the aeroplane is 300 mi/h a) How fast is theta
asked by Paige 
mathematic
ellen has 11 pennies she has 1 fewer dimes how many dimes does she have?
asked by shakari 
Chemistry
carbon 14 has a half life of 5715 years. If you start with a 5 gram sample of 14C, what mass is left after 15,000 years?
asked by Mima 
acc 100
Jan Nab is the sole owner of Deer Park, a public camping ground near the Lake Mead National Recreation Area. Jan has compiled the following financial information as of December 31, 2010. Revenues during 2010—camping fees $140,000 Market value of
asked by Anonymous 
Enviro Science
4. The Earth's tectonic plates and earthquakes are related because a. most earthquakes take place at or near tectonic boundaries b. during an eruption, the plates slip past one another c. of the measure of energy released by the earthquake, called
asked by mysterychicken 
Algebra 2
A farmer has 120 ft. of fencing available to enclose 2 adjacent rectangular pens alongside his barn. NO fencing is required along the bard side. He needs to have a total of 930 sq.ft. Determine the width (x) and the combined length of the pens. There are
asked by Nancy 
Science
Three negatively charged sphere, each with a charge of a 4*10^6C, are fixed at the vertices of an equilateral triangle whose sides are 20cm long. Calculate size and direction of the net electric force on each sphere.
asked by Tsoanelo 
english
A. the dictionary definition of a word B. making assertions about a group that are too broad C. parts of a presentation that augment the words D. rhetorical devices that rely on faulty reasoning E. the emotional associations a work invokes 14. audiovisual
asked by Erin. 
algebra
Ms. Lembright ordered the types of muffins below for a class party. • 12 blueberry muffins for $7.20 • 8 chocolate muffins for $4.40 • 6 raisin muffins for $4.50 What type of muffin costs the least?
asked by Anonymous 
3 grade english ms sue
compare and contrast when you compare and contrast two or more things,you tell how they are alike and different. some clue words that signal that things might be the same are like,same,both,also,and as well as. some clue words that signal differences are
asked by dw 
english
Which of the following statements best describes how Zaroff justifies hunting human beings?
asked by dominique 
Life orientation
In 40 to 45 lines critically discuss five ways in which the human or environmental problem impacts problem impacts on the community.provide relevant sources to support your claims
asked by Soniah 
arithmetic
2. A person walking along a straight road observed that at two consecutive kilometre stones the angles of elevation of a hill front of him are 40o and 80o respectively. Find the height of the hill.
asked by zainab 
Writing
Purpose writing an informal report, using a memo format. Preparation First, review the information on outlines in Organizing, Researching, and Illustrating Your Material. Next, review the instruction on informal and formal reports and format in this study
asked by Anonymous 
physics
Billiard ball A of mass m_A = 0.130 kg moving with speed v_A = 2.50 m/s strikes ball B, initially at rest, of mass m_B = 0.145 kg. As a result of the collision, ball A is deflected off at an angle of 31.0 degree, with a speed v_A1 = 2.05 m/s. Write down
asked by Caylee 
Social Studies
Because General Thomas J.Jackson stood his ground at the First Battle of Bull Run,his troops nicknamed him what? Thomas "Stonewall" Jackson? The Civil War began when the south fired on Fort Sumter.What city/state is Fort Sumter in? Charleston,South
asked by Neon 
math
A man cycles 5 miles due north and 12 miles due east. a. what is the distance traveled by the man? b. what is displacement of the man?
asked by yorktech 
help please
when is the best time to read reveiw or discussion a Question? a. immediately after you have finished all of the reading b. after you write your note c.before you begain any detailed reading d. throughout your detailed reading
asked by zully 
English II
The question is: my neighbors across the street have a new car; it's a toyota. Answers: (a) My, Street, Toyota (b) My (c) My, Toyota (d) My Neighbors, Street, Car, Toyota Now I had to choose which words to capitalize and my answer was (c)... am I correct?
asked by PJ 
Chemistry
A solution contains 1.50 g of dissolved Pb 2+ ions. How many grams of NaI must be added to the solution to completely precipitate all of the dissolved Pb 2+ as PbI2?
asked by annabel 
geometry
If the ratio of the interior angle to the exterior angle is 5:1 for a regular polygon, find a. the size of each exterior angle b. the number of sides of the polygon c. the sum of the interior angles d. Name the polygon
asked by jodi 
Chemistry
An aqueous solution contains 0.196 M hydrosulfuric acid and 0.190 M hydrochloric acid. Calculate the sulfide ion concentration in this solution. [S2] = _________mol/L.
asked by Ana 
math
On the last math quiz, there were four A's, two B's, five C's, and one D's. If the math quizzes were returned to the students in random order, what is the probability that the first quiz returned to a student was an A or a B?
asked by Anonymous 
Math
A student at St. F. X. decided to become his own employer by using his car as a taxi for the summer. It costs the student $693.00 to insure his car for the 4 months of summer. He spends $452.00 per month on gas. If he lives at home and has no other
asked by Rezu 
financial planning problems
During a job interview,Pam Thompson is offered a salary of 28,000.The company gives annual raises of 6 percent. What would be Pam's salary during her fifth year on the job?
asked by gina 
San
Generaly, the farther away from the Equator one travels in Africa, the a. hotter the teperatures become b. drier the climate becomes c. higher the landform becomes d. denser the rainforest becomes
asked by Ces 
physics
A 34 g glass thermometer reads 21.6°C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7°C. What was the original temperature of the water? I need help on this please could someone
asked by Akbar 
Chemistry
How many moles of O2 are needed for the complete combustion of 3 moles of CH4?
asked by annabel 
3 grade english ms sue
write two sentences comparing two or more pets or other animals. use at least two adjectives that compare. underline the adjectives my son write (1) my adorable lettle puppy is cuter than my cat. my son underline(adorable,cuter) my son write(2) my tiny
asked by dw 
algebra
The Creekside Theater is putting on a p lay. The Hanson family bought five adult tickets and two child ticke ts for $129.00. The Rivera family bought two adult tickets and six child tickets for $107.50. Write a system of equations to represent this
asked by johnetta 
Physics
A 1.55 kg mass attached to a spring oscillates with a period of 0.375 s and an amplitude of 16.5 cm. (a) Find the total mechanical energy of the system. (b) Find the maximum speed of the mass.
asked by Alex 
math
Evaluate the factorial expression 8!/6! Use the formula for nPr: How many arrangements can be made using the letters of the word HYPERBOLAS if no letter is to be used more than once.
asked by Anonymous 
Physics
A uniform rectangular sign of width 47.6 cm, height 25.0 cm, and negligible thickness hangs vertically from supporting hinges attached at its upper edge. Find the period of smallamplitude oscillations of the sign.
asked by Steve 
chemistry
The solubility of AgCl is 0.000013 mol/L. Calculate the Ksp for AgCl
asked by Anonymous 
Math
Suppose Kevin and Jill both deposit $4000 into their personal accounts. If Kevin’s account earns 5% simple interest annually and Jill’s earns 5% interest compounded annually, how much will each account balance show at the end of 5 years? Calculate the
asked by Dee 
Life orientation
In 1015 lines critically discuss 5 ways in which the human factor or environmental problem impacts on the community.
asked by Life orientation 
trigonometry
show that sin 2theta/1cos 2 theta = cot theta
asked by lindsay 
Social Studies
What did the confederate soldiers call the Union soldiers? Yankees? What did the union soldiers call the confederate soldiers? Rebels? Name the Confederate Iron Clad ship? Merrimack? How did Stonewall Jackson get shot? Was shot during the Battle of
asked by Neon 
Chemistry
A sample of iron ore contains 1.02 x 10^24 Fe atoms and is found to be 69.94% Fe by mass. What is the mass of the sample?
asked by annabel 
Geometry
if a person 5 feet tall casts a 3 foot shadow and a building casts a 12 foot shadow, what is the height of building in feet?
asked by Trevor 
Calculus
A flower pot is dropped from a point 12 feet above the ground,so that it will land 4 feet from the base of a 12 foot lamppost. At what rate is the shodow of the flower pot moving along the ground when the pot is 8 feet above the ground?
asked by Amber 
psy statistics
A study wants to examine the relationship between student anxiety for an exam and the number of hours studied. The data is as follows: Student Anxiety Scores Study Hours 5 1 10 6 5 2 11 8 12 5 4 1 3 4 2 6 6 5 1 2 Why is a correlation the most appropriate
asked by meto 
chemistry
How many moles of ions are contained in 1.4 L of a 1.6 M solution of Mg(NO3)2?
asked by megan 
English II
Another question was: aunt consuelo is consuelo melendez, doctor of dental surgery. I had to choose which words were supposed to be capitalized. (a) Aunt Consuelo, Melendez, Dental Surgery (b) Aunt Consuelo, Consuelo Melendez (c) Aunt, Consuelo Melendez,
asked by PJ 
Math
A number cube is rolled 420 times and the result recorded as follows: there were 70 ones, 75 twos, 64 threes, 73 fours, 72 fives, and 66 sixes. What is the experimental probability of not rolling a five?
asked by Lisa 
Physics
A uniform rectangular sign of width 51.6 cm, height 25.2 cm, and negligible thickness hangs vertically from supporting hinges attached at its upper edge.
asked by Dev 
Probability
6 sided die is rolled 8 times, how many sequence of rolles are there?
asked by Keith 
Chemistry(Please help)
1) Nitrosyl chloride (NOCl) decomposes at high temperature. The equation is 2 NOCl (g) > 2 NO (g) + Cl2 (g) at 227oC Using delta Ho = 81.2 kJ and delta So = 128 J/K, calculate the value of the equilibrium constant for this reaction. I do not know how to
asked by Hannah 
chem
a volume of 20. l of O2 os warmed from 30c to 85c what is the new volume if the pressure is kept constant
asked by annie 
Mathematics
There are 250 marbles altogether. Johan has 20 more than Mary who has 50 less than John. How many marbles does John have?
asked by Anonymous 
Chemistry
A gas is collected over water at 30.0 degrees celsius. It's pressure is 752.5 mm Hg. What is the pressure of the dry gas? Water vapor pressure at twenty degrees Celsius is 27.5 mm Hg.
asked by Maria 
science
Use this reaction to answer the question: 2KClO3 > 2KCl + 3O2 If I start with 65g KClO3, how many mol O2 will be formed? How many g O2? If I need to produce 299g KCl, how many mol of KClO3 do I need to start with? How many g KClO3?
asked by Anonymous 
chemistry
For the reaction H2(g) + I2(g) ↔ 2 HI(g), you have the initial concentrations [H2] = 0.15 and [I2] = 0.05. Keq for the reaction at this temperature is 4.5 x 106. Make a reaction table. Include rows for initial concentration, change in concentration, and
asked by Anonymous 
chemistry
A solution of PbI2 has [Pb2+] = 4.5 x 105 and [I] = 6.5 x 104. PbI2 has Ksp = 8.7 x 109. Write down the reaction that is taking place. Calculate Q. Is Q larger or smaller than the Ksp? Is the solution unsaturated, saturated, or supersaturated? Will a
asked by Anonymous 
Chemistry
A gas is collected over water at 30.0 degrees celsius. It's pressure is 752.5 mm Hg. What is the pressure of the dry gas? Water vapor pressure at twenty degrees Celsius is 27.5 mm Hg.
asked by Maria 
child development
When both parents believe that men are capable of nurturing infants a. mothers devote time to caregiving b. fathers devote less time to caregiving c. fathers devote more time to caregiving d. the marital relationship tends to suffer, particulary when me
asked by HELP 
Social Studies
What river did the Union succeed in capturing with the victory at Vicksburg? Mississippi River? General Sherman carried out a campaign of destruction.What city did he begin his march to sea? Atlanta? What were 2 purposes for Lincoln issue of the
asked by Neon 
Chemistry
A solution contains 0.400 g of NaOH in 20.0 mL of solution. What is its molarity
asked by Urgent 
math
Ever wonder how much a house “actually” costs? Consider Alex and Sabrina who purchased a house with a selling price of $249,000.00. They managed to put 15% down and were approved for a 30year conventional loan at 7% to cover the remaining $211,650.00.
asked by Dee 
life orientation
identify and describe one environmental problem that cause ill health,accidents,crises,and disasters within your community or any other community within south africa or globally
asked by lesego 
Chemistry
What is the pH of a 2.5 x 102 M HCl solution? I'm so confused how to find this :(
asked by Jess 
chemistry
what is the balanced equation for Mg+HNO3==>Mg(NO3)2+H2
asked by Jay Jay 
Geometry
If you stand at stree level, the angle of elevation to a buildings tenthstory window is great than the angle of elevation to one of its ninthstory windows.
asked by zach 
algebra
How far can you see to the horizon from a mountain top that has a height of 9000 m? Use the formula V= 3.5 sqrt h
asked by Coach 
Enviro Science
Describe the diversity of species on Earth, relating the difference between known numbers and estimated numbers Thanks MC
asked by mysterychicken 
science
Use this reaction to answer the question: 2KClO3 > 2KCl + 3O2. If I start with 65g KClO3, how many mol O2 will be formed? How many g O2? If I need to produce 299g KCl, how many mol of KClO3 do i need to start with? How many g KClO3?
asked by Jennie 
precalc HELP PLEASE
solve using identities for all angles (dont use multiple angle method)show work please cuz i am so confused. 2sin2x3sinx=0
asked by Kimberly 
science
What will be the final temperature if 1600 cal of heat is given to an ice block of mass 20 grams?
asked by shankar 
Math
x < 1 is a solution to which of the following inequalities? A. x + 2 < 3 B. x − 2 < − 3 C. x − 2 ¡Ü −1 D. both A and C
asked by Jon 
French
Estce qu'il y a quelqu'un qui peut lire mon rédaction français? J'ai fait un effort mais je ne sais pas si mes constructions sont correct et j'ai besoin d'aide pour ça. Peut quelqu'un m'aider? Naissance d’un grimpeur Le grimpeur Kiran Castelino
asked by Kiran 
Introduction to University Studies
How might you apply each of the four steps of reading to reading electronic materials
asked by lisa 
Physics
Calculate the magnitude of the force between two 3.95 µC point charges 7.4 cm apart
asked by TotallyLost 
chemistry
A sample of neon gas used in a neon sign occupies a volume of 3.90 L at a pressure of 580 torr. Calculate the volume of the gas if the pressure in the glass tube of the sign is 783 torr.
asked by Anonymous 
geometry
the net of a square pyramid has a base of 3cm by 3cm and each slant side is 5cm. Include the flaps. Find the total surface area of the prism.
asked by jodi 
Calculus. Please!! i need help so bad!!!
1. Graph y =sec(1/2O2pi)– 3. the O after the 2 has a slash through it 2. Write an equation for tangent given the period, phase shift, and vertical shift. period = 1/3pi , phase shift = –1/4pi, vertical shift = –5
asked by heather 
geometry
the diagonal VY of a cuboid =root(26.25)cm, the length of a side ZY = 4cm and the height of a sideUZ =25cm for the cuboid. Find the width of the width UV.
asked by lindsay 
Algebra 2
Mary and Sue are both on bikes and leave from point A. Mary travels west at a uniform speed (x mi/hr). Sue travels north at 5mi/hr faster than Mary. After 2 hours, they are 50 miles apart. What is the speed of each girl?
asked by Chelsea:) 
Algebra
help me solve this exponential problem P to the 3rd power times q 5 over 2 all over q to the 2nd power times r to the negative 6.
asked by jeremy 
science
On vernier scale of vernier calliper there are 25 lines and on main scale smallest division is 1 mm then least count of vernier calliper is
asked by shankar 
science
A straight highway leads to the top of the base of a 50 meter tall tower. Frm the top of the tower, if yhe angles of depression of two cars on the road are 30° and 60° , then the distence between the tow cars is ................meter.
asked by shankar 
Calc 1
An 8 foot tall fence separates Larry's yard from Evan's yard.The fence is 3 feet from Larry's house and runs parallel to the side of his house. Larry wants to paint his house and needs to position a ladder extending from Evan's yard over the fence to his
asked by Amber 
Mechanics problem  Newtons laws  resultant force
I have this mechanics problem. Please help me solve it. Rory, Aurora and Raoul are three lions fi ghting over a piece of meat of mass 12 kg. Each lion exerts a horizontal pull. Rory pulls with a force of 800 N. Aurora, who is 120degrees to Rory's right,
asked by John 
physics
A man leaves the garrage in his house and drives to a neighbouring town which is twenty kilometres away from his house on sightseeing. He returns home to his garrage two hours after. What is his average velocity from home in km/h?
asked by pachi 
chemistry
which liquids are effected by an electric field and why 1chloropropane, pentane, tetrachloromethane, cyclopentane
asked by Naila 
chemistry
how to explain that HCL is a stronger acid than HOCL?
asked by chamy 
writing
I'm writing a letter for personal reasons. There is a word I need help with, and I can't think of what it is. It kind of means knowing how far you're ok to go, knowing where your boundaries are, knowing where to draw the line, etc. The sentence is: I need
asked by SoccerStar 
Math
mx+b=y is a way to write the Word Bank: Reducible, Positive, Coefficient, Undefined, Zero, Line, Slope intercept form, Term, Constant, whole number, order pairs
asked by Deja 
American Lit.
What is FundamentalistModernist Controversy.? Is this one whole topic or more than one.?
asked by David 
Calculus
assume that f(x)= x^3(x2)^2 a) find the xintercepts algebraically b) find all the critical points c) use the first derivative test to determine local minimums and maximums d)find all inflection points e)state the concavity of the graph on appropriate
asked by Elaine 
Math
14/25 as a fraction decimal percent
asked by Leslie 
Math
A rectangular chalk board is 3 times as long as it is wide. If it were 3 metres shorter and 3 metres wider, it would be square. What are the dimensions of the chalk board? 3 meters wide 9 meters long
asked by Rezu 
My Course Grade
I have class average of 85.74. i got 63 in final which 15 of the class . what will be my my overall class average . Thank you in advance.
asked by shama 
CHEMISTRY URGENT!!!
A hotair balloon has a volume of 970 L at 28 degrees C . To what temperature must it be heated to raise its volume to 1200 L , assuming the pressure remains constant? so it would be 970L/28degreesC=1200L/x? I did that and I got 34.6 degrees C and when i
asked by Anonymous 
Physics
A scuba diver has an air tank with a volume of 0.010 m^3. The air in the tank is initially at a pressure of 1.0x10^7 Pa. Assume that the diver breathes 0.400 L/s of air. Find how long the tank will last at a depth of each of the following. (a) 1.0 m min
asked by Romy 
Physics
A 2.20 kg mass attached to a spring oscillates with a period of 0.440 s and an amplitude of 16.5 cm. (a) Find the total mechanical energy of the system (b) Find the maximum speed of the mass
asked by Dev 
life orientation
a clear explanation of how drug addiction is a human factor that may cause ill health,accidents,crises or disaster
asked by lentokazi 
algebra 2
When you spend $1 at the grocery store, the store doesn’t keep all of your money as profit. Some of it is reinvested in the economy when the grocery store buys more merchandise from suppliers. In turn, the suppliers don’t keep all of that money as
asked by sam 
Physics
A 34 g glass thermometer reads 21.6°C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7°C. What was the original temperature of the water? I need help on this please could someone
asked by Akbar 
chemistry
A solution contains 1.72 103 M Ca(NO3)2. Determine the mass of the Ca2+ ions in 1.8 mL of this solution. How many nitrate ions are there in 3.0 106 L (3.0 µL) of this solution? (i keep doing these two wrong but not sure why)
asked by katiy 
trig
Prove that if Sinx=5/13 and Siny=12/13, where x and y angles in Q1, then Sin(x+y)=1
asked by Anonymous 
math
help me ..... Consider the function f(x)= cos3x 4sin3x. (a)Find the equation of the line normal to the graph of f(x) when x= pie/6 . (b)Find the x coordinates of the points on the graph of f(x) where the tangent to the graph is horizontal. (c)Find the
asked by weloo_volley 
PreAlgebra
what is the equation in slopeintercept form of 7x+2y=10
asked by April 
Social Studies
Who was the leader of the Confederate States of America? Jefferson Davis? Who was the President elected serving during the Civil War? Abe Lincoln? The Confederate capital city was located 90 miles from the Union capital. What were they? Richmond,Virginia
asked by Neon 
intermediate algebra
Soe using the eliminatin method.Show work.State if it has infinite solutions or no solutions...15r+12s=24,30r24s=48
asked by Lueshelle 
math
What is the length of line segment S T if S is at negative five comma negative one and T is at negative one comma twelve? Round to the nearest hundredth.
asked by meme 
physics
A scuba diver has an air tank with a volume of 0.010 m^3. The air in the tank is initially at a pressure of 1.0x10^7 Pa. Assume that the diver breathes 0.400 L/s of air. Find how long the tank will last at a depth of each of the following. (a) 1.0 m min
asked by Romy 
math
The ratio of A's stickers to B's stickers was 3:4. After A bought another 18 stickers and B lost 10 stickers, the ratio became 3:2. Find the number of stickers both of them had at first.
asked by Al 
health
Which age groups benefit from physical activity? A. Children B. Middle aged adults C. Older adults D. All of the above
asked by cynthia 
science
What are the UV ray statistics from 20022012?
asked by Joseph 
chemistry
how many grams of magnesium carbonate are in a sample that has 1.58 x 10^24 oxygen atoms?
asked by liz 
math
9(x5)=4x5 solve for x. please help me with this one and show the work so i can understand
asked by kacey 
Physics
Suppose when we look in one half of the sky, the CMBR appears to be at a temperature of 2.72K. What is the peak wavelength in that direction? Are we moving toward or away from the region of space? What is our velocity with respect to the CMBR?
asked by Leila 
Physics
A metal cylinder with a area of 0.01m^2 and height of 0.1m is suspended levelly in water with a thin string. a)What is the water pressure on the top and bottom of the cylinder if the cylinder top is 1m below the water surface? And the amount of buoyant
asked by Jermaine 
math
Ricki Cohn Encyclopedia sales Commission rate: 11% Month’s sales: $2,550 What is the monthly commission?
asked by Racheal 
intermediate algebra
The danville Express travels 280 miles at a certain speed.If te speed were increased by 5 mph the trip could have been made in 1 hr less time.What was the actual speed?
asked by Lueshelle 
math
hilp meeee trying .... Consider the two parabolas :y1=2x^23x1 and y2=x^2+7x+20. (a) Find the points of intersection of the parabolas and decide which one is greater than the other between the intersection points. (b) Compute the area enclosed by the two
asked by weloo_volley 
Physics
Suppose when we look in one half of the sky, the CMBR appears to be at a temperature of 2.72K. What is the peak wavelength in that direction? Are we moving toward or away from the region of space? What is our velocity with respect to the CMBR?
asked by Leila 
Math
x < 1 is a solution to which of the following inequalities? A. x + 2 < 3 B. x − 2 < − 3 C. x − 2
asked by Jon 
L&o
In 1015 line critically discuss 5 ways in which the human or environmental problem impacts on the community?
asked by Busisiwe 
life orientation
Five ways in which the human or environmental problem impacts on the community
asked by kidibone 
chemistry
A hotair balloon has a volume of 970 L at 28 degrees C . To what temperature must it be heated to raise its volume to 1200 L , assuming the pressure remains constant?
asked by Anonymous 
English
Can you please help express the concept below? Thank you, Writeacher. I was last proud of myself when I got an A in maths/when I got a 7 and a half (according to the Italian grade system) in maths.
asked by Mike1 
chemistry
How many moles of a gas will occupy a volume of 0.53 L at a temperature of 343 K and a pressure of 2.6 atm ?
asked by Anonymous 
life orintation
Critically discuss 8 ways in which growth impacts on your community or any other community within south africa or globally
asked by thapelo 
government
Describe one or two ways in which the US government subsidies might affect the rate of production for petroleum within the US. Should the US use tax dollars to increase subsidies and thereby encourage more oil exploration and petroleum production
asked by debbie 
Statistics
Kyle averages 5 finished accounts a day. His standard deviation is 1 account per day and we want the percentile for a day where he finishes 8 accounts. The percentile will be between…
asked by Anthony 
English  ms. sue
for glass castle memoir i finally get assignment ms. sue i write persuasive essay, b/w deduction and induction i think deduction be easy cause i only hve to support my main points. i need to do it on dad. i not know what topic to do it on, and how to
asked by Mohammad 
intermediate algebra
Factor using the AC method..6x^34x^210x
asked by Lueshelle 
science
A straight highway leads to the top of the base of a 50 meter tall tower. Frm the top of the tower, if yhe angles of depression of two cars on the road are 30° and 60° , then the distence between the tow cars is ................meter.
asked by shankar 
chemistry
the heat of vaporizaton of water is 2.26kJ/g. How much heat is needed to change 4.2 g of water to steam.
asked by Randy 
Physics
A 2.20 kg mass attached to a spring oscillates with a period of 0.440 s and an amplitude of 16.5 cm. (a) Find the total mechanical energy of the system (b) Find the maximum speed of the mass.
asked by Nem 
algebra
How far can you see to the horizon from a mountain top that has a height of 9000 m? Use the formula V= 3.5 sqrt h
asked by Coach 
the sewing machine
exam 042015
asked by linda 
Physics
Suppose when we look in one half of the sky, the CMBR appears to be at a temperature of 2.72K. What is the peak wavelength in that direction? Are we moving toward or away from the region of space? What is our velocity with respect to the CMBR?
asked by Leila 
Social Studies
How did Abe Lincoln begin the Gettysburg Address?
asked by Neon 
intermediate algebra
Rewrite with positive exponents.Assume that even roots are nonnegative quanities and all denominators are nonzero...(4xy^2)^2
asked by Lueshelle 
chemistry
what is the mass of aluminum phosphate needed to create a .25M solution with 650 mL solution?
asked by Shaunice 
intermediate algebra
Solve by factoring...2a^2+3=7a
asked by Lueshelle 
Social Studies
What Union general made a name for himself at the battle of Shiloh? Ulysses S.Grant?
asked by Neon 
Math: Distance and Midpoint
Three points on the edge of a circle are (220, 220), (0, 0), and (200, 40), where each unit represents 1 foot. What is the diameter of the circle to the nearest 10 feet? I know the answer is supposed to be 550 ft, but I keep coming up with the wrong
asked by Anonymous 
chemistry
If 2.3 mol of has a volume of 1.1 L at 289 K , what is the pressure in atm ?
asked by Anonymous 
Chemistry
What is the smallest wholenumber ratio of ions in a crystal lattice?
asked by Shea 
Physics
Suppose when we look in one half of the sky, the CMBR appears to be at a temperature of 2.725K. What is the peak wavelength in that direction? Are we moving toward or away from the region of space?
asked by Leila 
Physics
Suppose when we look in one half of the sky, the CMBR appears to be at a temperature of 2.725K. What is the peak wavelength in that direction? Are we moving toward or away from the region of space?
asked by Leila 
Psysics (Magnetism)
A currentcarrying wire is placed in a uniform magnetic field, but there is no magnetic force on it. How is this possible?
asked by Brooke 
life orientation
a clear explanation of how your chosen topic is human factor that may cause ill health,accident,crises or disaster(alcoholism)
asked by meggie 
critical thinking
There are no chocolate stains on my hands, so I couldn’t have stolen the cookies.” Does this example require deductive or inductive logic?
asked by jill 
algebra
Mrs Acres will draw a circle on the playground for a game in gym class.The circle will havw a diameter of 16 feet.What is the circumference of the circle that Mrs Acres will paint?
asked by Katie 
Life orientations
Identify and describe one environmental problem that causes ill health,accidents,criser and disasters within your community or any other community within south africa or globally.
asked by Letlhogonolo mktd 
noun
if two dices are tossed together, the probability that the product will be less or equal to 18 what?
asked by grace 
Early Childhood Literacy
Erikson's work identified:
asked by Nikki 
Math: Geometry
If 0 < y < 1 and 0 < x < 1, find the probability that y < x. Begin by sketching te graph, and then use the area method to find the probability. Please help me. I do not understand. Thank you in advance!
asked by Rose 
science
For ........... the graph of current and voltage is not a straight line and value of resistance is not constant.
asked by shankar 
Ms, Sue, I have a question for you.
I need people to take an online survey for me. Don't worry, it's completely virus free. It's about factory farming, but it won't let me share a link here. I need more people to take it. So, can you allow me to post the link? Please?
asked by Mariella 
Chemistry
A 350 ml of gas at 1.25 atm and 298 K is heated to 343 K an the volume increased to 750.0ml. What is te new pressure?
asked by Mikey 
College Accounting
How do the entries affect account balances and why both debit and credit entries can increase or decrease an account balance?
asked by shanty 
algebra college level
it says y=16x+181 represents number of students in class where x represents number of hours study required weekly. what is rate of change of number of students in class to number of hours study
asked by azima 
Social Studies
The Confederate capital city was located 90 miles from the Union capital.What were they?
asked by Neon 
math
The mean of a set of 51 data points is 3.04. If a data value of 16 were added to the data set, what would be the approximate value of the new mean?
asked by coal 
chemistry
How many moles of ions (cations and anions) are contained in 1.2 L of a 1.9 M solution of KCl? KCl K+ + Cl)
asked by megan 
Algebra
I am trying to factor, but I can't seem to get this one. The question is: 15d*2*2d+8. It is actually 15d squared but I didn't know how to right that without it being confusing. Anyways I changed it so now it says 1(15d2d+8). Then I drew a diagram
asked by Ella 
Convergent/Divergent
determine whether the series 1 + 1/2^5 + 1/3^5 + 1/4^5 +...is convergent or divergent? How do I tell the difference?
asked by What's the Difference? 
Science
Just to see, how do you measure inches from your hands to the ground with a ruler? Is it like how many inches are left from hands to ground?
asked by Sholanda 
chemistry
A mass of 7 kg of water is raised from 8 degrees C to the boiling point 100 degrees C. How much heat is required? The specific heat of water is 1000 cal/kg · degrees C. Answer in units of cal
asked by please help 
chemistry
If 3.0 mol of O2 has a volume of 26.0 L at a pressure of 1.6 atm, what is its temperature in kelvins?
asked by Anonymous 
Math
Suppose that you want to purchase a home for $450,000 with a 30 year mortgage at 6% interest. Suppose that you can put 20% down. Assume that the monthly cost to finance $1,000 is $6.00. What are the monthly payments
asked by Alicia 
chemistry
Calculate the amount of NaOH in this solution 5.00mL of 12.0 NaOH is diluted with water to make 24 mL of 2.50 NaOH solution
asked by crystal 
Algerbra
Is there an instance when a linear equation is not a function?
asked by Chauncey 
English
MECHANICS (errors in the use of apostrophes) Answer At one time, "yes, ma'am" and "no, sir" were some boys' and girls' respectful responses to adults' questions. Safeguarding the environment is not somebody elses responsibility; it is our's. The
asked by Kim Rogers 
Math
Solve the equation symbolically x+7/8=x+8/9
asked by Kris 
physics
what is the mass of a playset that is moved with 580n of force for 11 seconds at 1.5 m/s?
asked by Ray 
Math
Need to find equation for 1250=1200+4375. Is this possible or impossible. Need to find how to figure these type of questions. This is 3rd grade homework
asked by Justin 
Differential Equations
solve using variation of parameters: y"+36y=[csc(6t)]^2 I don't understand variation of parameters very well at all.
asked by Rosy 
Math
Simplify 5^1/3 /2(3)^1/2  2^1/2
asked by Hanu 
chemistry
What is the molarity of each kind of ion in a solution of magnesium chloride that contains 29.0 g of magnesium chloride dissolved in enough water to make 1.73 L of solution? MgCl2 Mg2+ + 2 Cl
asked by megan 
English
Does contemporary literature encourage young readers to look beyond Australian stereotypes? If so then why? Please state atleast 5 argumentative points.
asked by Rianna 
Algebra
(6 times square root of 3 + square root of 5)(square root of 3  4 times the squae root of 5)
asked by Jay 
math
help me ..... Consider the function f(x)= cos3x 4sin3x. (a)Find the equation of the line normal to the graph of f(x) when x= pie/6 . (b)Find the x coordinates of the points on the graph of f(x) where the tangent to the graph is horizontal. (c)Find the
asked by weloo_volley 
chemistry
what volume should the solution diluted to create a 2.0M solution with a 5g of potassium hydroxide?
asked by Shaunice 
Social Studies
What did the north call the battle of Manassas?
asked by Neon 
intermediate algebra
Solve....x(x3)=x9
asked by Lueshelle 
financal problems
Computing future value. Calculate the future value of a retirement account in which you deposit 2,000 a year for 30 years with an annual interest rate of 7 percent.
asked by gina 
geometry
A trailer driver left Miami at 15:45 and arrived at his destination 637.5 km away at 02:15 the next day. a. How long did the jpurney take? b. What was his average speed in km/h c. What was his average speed in ms^1
asked by jodi 
hindi
example for anuswar
asked by gaiyus 
English
His mother hoped he would apply to medical school, but his dream was to become the Manager of fastfood franchise operation.
asked by Kim Rogers 
Algebra
Will you explain the concept of "i" in algebra? Problem: 4+2i/42i
asked by Lee 
assessment
When scoring the MMPI 2, how can you intrepret it and what is the diagnosis according to Axis II. The scores are as follow: ?= 13 L = 3 F=19 k=8 hS=14 d=30 hY=32 pD=24 Mf=37 Pa=12 Pt=25 Sc=21 Ma=22 Si=32 Pleae forward results/intrepretation
asked by ruth 
Biology
Is depolarization positive and repolarization negative?
asked by Saphire 
maths
complete the patterns: find the 50 th term and n th term a)3,6,11,,27,,51,,.. b)0,3,8,,,35,,63,.. c)1,8,27,,,216,,512,..
asked by RS 
English
Hello! Need some help with these 3 sentences. They have to be filled with either simple future, going to future or present continuous 1. Son: Mum, what are we having for dinner tonight? Mum: I haven’t decided yet. But I think we __________(HAVE) pasta.
asked by Mark 
Spanish
Yo sé jugar en equipo. What does this mean? Help please. Thanks.
asked by Larry 
physics
A 10kg block is released from the top of a ramp 45m high. the track is frictionless except for a 6m stretch in the middle. when the block reaches the end, it compresses the k=2250N/m spring a distance of 0.030m. Find the coefficient of friction over the
asked by Anonymous 
Foreign languages
I urgently need you to check these sentences, Writeacher. Thank you very much. 1) I was invited by Mary to come round (come along is possible?) one of these days. 2) You ought not to worry about (or be worried about but NOT be fussed about?) a common (not
asked by Mike1 
ethics & legal issues
A female patient is scheduled for lumbar spine series. The radiographer is asked to go to another room for some accident victims. She tells you everything is ready to go. You go ahead and perform the xrays. It is revealed that the woman is pregant and in
asked by linda 
history
one of president nixons goals was to reduce the number of nuclear weapons the united states had
asked by alex 
Visual & Performing Arts  Semester 1 Class
When all the portions of an artwork are combined and seem to function collaboratively, the composition is said to have?
asked by Emily 
nursing
i have to do matching and i can not figure theses out please help me!!! __1. annual evaluations __2. positive attitude __3. self discipline __4.medical assistant __5. breaktime __6. cooperation __8.team work __9. job descriptions __10.good rapport c.
asked by cass 
Basic Dressmaking Processes
What length of material do you need to purchase for the dress portion of the outfit?
asked by linda 
Algebra
square of u  square root of v/ square root of u + square root of v.
asked by Taurus 
Algebra
I do not understand radical equations. 12 times the square root of z1=3 times the square root 3z+1050.
asked by Taurus 
math
If 3feet*50metre is Rs.8720,how much would 2feet*40metre cost?
asked by James 
Language Arts
In the sentence, "In general people are better at spending than saving." I know there would be a comma after "general". Would there also be a comma after "spending"? Thanks..
asked by Brandi 
math
input: q 14 15 24 41 43 46 58 output: a 50 49 40 23 21 18 6 What is the rule:
asked by blaine 
math
what si the equation in slopeintercept form 5xy=6
asked by Taylor 
chemistry
what is hibs boson it is a gold particle
asked by frank 
Math
Simplify 5^1/3 /2(3)^1/2  2^1/2
asked by Hanu 
Algebra
(8i)^2(8+i)^2
asked by Jay 
Algebra
(8i)^2(8+i)^2
asked by Jay 
math
using three dimensional objects. trace one face of a cone. trace one face of a pyramid.
asked by matt