Questions Asked on
May 6, 2013

Math
A researcher tagged 40 giant turtles in 2008. In 2009 , she returned and captured 50 turtles , 16 of which were tagged. In 2010 , she returned again and captured 30 turtles , 8 of which were tagged. a) Use a proportion to estimate the turtle population for
asked by Diana 
Physics
A ray of light of vacuum wavelength 550 nm traveling in air enters a slab of transparent material. The incoming ray makes an angle of 34.3◦ with the normal, and the refracted ray makes an angle of 18.9◦ with the normal. Find the index of refraction of
asked by alice 
physics
each step of a ladder increases one's vertical height 40.0cm. If a 90 kg painter climbs 8 steps of the ladder, what is the increase in potential energy?
asked by Anonymous 
math
Consider an 8% coupon bond selling for $953.10 with three years until maturity making annual coupon payments. The interest rates in the next three years will be, with certainty, r1 = 8%, r2 = 10%, and r3 = 12%. Calculate the yield to maturity and realized
asked by BAZLIAH 
Chemistry
For the following battery: Cd(s)  CdCl2(aq)  Cl–(aq)  Cl2(l)  C(s) (a) Write the reduction halfreaction occuring at the C(s) electrode. (Include physical states of reactants and products.) C(s) electrode:? (c) Calculate the mass of Cl2 consumed if
asked by Linda 
math
Which is the best display for the set of the number of tornadoes in the United States each year , If you want to be able to identify the mode? a) histogram with intervals of b) frequency table with intervals of 3 c) line pot d) line graph
asked by Diana 
Calculus
A cone is inscribed in a sphere of radius a, centred at the origin. The height of the cone is x and the radius of the base of the cone is r, as shown in the diagram opposite. Find the height, x, for which the volume of the cone is a maximum. (HINT: show
asked by Grant 
Math
a) In what way could the graph be misleading. b) How could you redraw the graph so that it is less misleading
asked by Anonymous 
WorldHistory
3.How was Napoleon able to control the countries neighboring the French Empire? He placed French garrisons in the countries. Made members of his family their head of state who in turn acknowledged Napoleon's will. He required them to supply him with
asked by _<3 
Social Studies
Many inventions were made during the Han dynasty of China which contributed to its culture and led to trade with other civilizations. China invented porcelain, paper, ink and gunpowder (which was used in fireworks). China traded these goods along a trade
asked by Jerald 
physics
In a playground there is a small merrygoround of radius 1.40 m and mass 140 kg. The radius of gyration is 0.960 m. A child of mass 43.0 kg runs at a speed of 3.70 m/s tangent to the rim of the merrygoround while it is at rest, and then jumps on. Find
asked by Help!:) 
Math help please
7. In the expression –7x – 5x2 + 5, what is the coefficient of x? 7 5 –5 –7 8. Write the expression using a single exponent. 2^2 • 2^8 4^10 2^10 4^16 2^16 9. Write the expression using scientific notation. (2.5 • 104)(4 • 103) 10 • 10^7 10
asked by Delilah 
Geometry
One right circular cone is set inside a larger circular cone. The cones share the same Axis, the same vertex, and the same height. Find the volume of the space between the cones of the diameter of the inside cone is 6in., the diameter of the outside cone
asked by danielle 
Related Rates
A particle moves along a path described by y=x^2. At what point along the curve are x and y changing at the same rate? Find this rate if at time t we have x=sin t and y= sin^2t. I solved the first part and got (1/2, 1/4), but I have no idea how to tackle
asked by Shania 
Function
Write a function rule for the area of a parallelogram whose base is 4 inches more than its height. What is the area of the parallelogram when its height is 8 inches?
asked by Anon 
Pre calc
Alice throws a ball straight up with an initial speed of 40 feet per second from a height of 5 feet? a) Find parametric equations that model the motion of the ball as a function of time. b) How long is the ball in the air? c) When is the ball at its
asked by Rebekah 
Math
Alonzo plans to retire as soon as he has accumulated $250,000 through quarterly payments of $2,500. If Alonzo invests his money at 5.4% interest, compounded quarterly, when (to the nearest year) can he retire?
asked by Mary 
Chemistry
Help please!!! Complete the two reduction half reactions for the cell shown at the right, and show the line notation for the cell by dragging labels to the correct position. (The electrode on the left is the anode, and the one on the right is the cathode.)
asked by shanonn 
physics
An automobile traveling 80 mi/hr has wheels 31 inches in diameter. If the car is brought to a stop uniformly in 58 turns of the wheels, what is the magnitude of the angular acceleration of the wheels (in radians/second^2)?
asked by CPhy 
physics
A fisherman's scale stretches 2.3 cm. when a 2.5 kg. fish hangs from it. What will be the frequency of vibration if the fish is pulled down and released so that it vibrates up and down?
asked by Nicole 
L.O
Critically discuss 5 ways in which in which xenophobia imapact on the community?
asked by Sharon 
Physics
I drink from a glass of water with a vertical straw. What's the longest straw I can use and still drink water if the ambient pressure is 1 atm? Give your answer in meters. Details and assumptions 1 atm is 101,325 Pa. The acceleration of gravity is −9.8
asked by Mathslover Please help 
Math help please ASAP
2. Simplify the polynomial. –3f^2 + 4f – 3 + 8f^2 + 7f + 1 5f^2 – 11f + 2 11f^2 + 11f + 2 5f^2 + 11f – 2 –5f^2 + 11f – 2 3. (2x2 + 6x + 1) + (–7x2 + 2x – 3) 5x2 – 4x – 2 –5x2 + 8x – 2 5x2 – 8x + 2 –9x2 – 8x + 2 4. (3x2 – 7x
asked by Delilah 
math
Vance wants to fence in a rectangular area for his dog. He wants the length of the rectangle to be at least 30 feet and the perimeter to be no more than 150 feet.
asked by Kayla 
physics
A meter stick is suspended vertically at a pivot point 27 cm from the top end. It is rotated on the pivot until it is horizontal and then released from rest. What will be its maximum angular velocity (in radians/second)?
asked by Anon 
Science
At which point is more silt in the water in the mountains or on flatland why
asked by Stephen 
Math (Algebra)
What is the remainder when \(5\times 55\times 555 \times \ldots \times \underbrace{555\ldots 55}_{555 5's}\) is divided by \(100\)?
asked by Hale 
Biology
How does the changes in the DNA code from CTT to CAT in the beta chain of haemoglobin affect cell activity?
asked by Maria 
Chemistry
we burn 12.50L of ammonia in 20.00L of oxygen at 500 degrees celsius. What volume of nitric oxide, NO, gas can form? what volume of steam, H2O (g) is formed? Assume that all gases are at the same temperature and pressure, and that the limiting reactant is
asked by Juan 
Chemistry HELP!
In order to standardize a KMnO4 solution, 0.3498 g Na2C2O4 was dissolved in 30 mL water and 15 mL 3.0 M H2SO4. The KMnO4 solution was added to the Na2C2O4 solution until a pale pink color persisted. The titration took 29.5 mL of KMnO4 solution. What is the
asked by Prue 
Bridge Math
The inequality 10x + 20y > 500 models all of the combinations of scores of 10 and 20 points that will give a total greater than 500 points in a game. What is not true about the values for x and y?
asked by Taylor 
Chemistry HELP!
In order to standardize a KMnO4 solution, 0.3498 g Na2C2O4 was dissolved in 30 mL water and 15 mL 3.0 M H2SO4. The KMnO4 solution was added to the Na2C2O4 solution until a pale pink color persisted. The titration took 29.5 mL of KMnO4 solution. What is the
asked by Prue 
physics
A solid sphere rolls up an inclined plane of inclination angle 35 degrees. At the bottom of the incline, the center of mass of the sphere has a translational speed of 13 ft/s. How far (in feet) does the sphere roll up the plane (distance along the plane)?
asked by Science 
Math
Holly is flipping a coin and pulling a marble from a bag. There are 4 white marbles, 2 blue marbles, and 5 green marbles, all of the same size, in the bag. What is the probability that the coin lands on heads and she pulls a green marble from the bag?
asked by Vivi 
Math (Algebra)
3 robots go out to lunch. They decide to share the $11.91 bill evenly. How much does each robot pay? Equation: 3x = 11.91 #1. What does x represent? #2. Solve for x. #3. Answer the question.
asked by Sydney 
Physics
At an outdoor market, a bunch of bananas is set into oscillatory motion with an amplitude of 30.0781 cm on a spring with a spring constant of 15.7711 N/m. The mass of the bananas is 69.6297 kg. What is the speed of the bananas? Answer in units of m/s
asked by dallas 
math
A small grill can hold two hamburgers at a time. If it takes 5 minutes to cook one side of a hamburger, what is the shortest time needed to cook both sides of five hamburgers? 30 15 20 25
asked by megan 
chemistry
The pKb of ammonia solution, NH3(aq) is 4.76. A buffer solution contains NH4Cl and NH3, has a pH of 9.45, and a total ammonia concentration (all forms) of 0.400 M. What is the concentration of NH4+? (Hint: [NH4+] + [NH3] = 0.400 M)
asked by Anonymous 
college physics
a water skier is being pulled by a tow rope attached to a boat. as the driver pushes the throttle forward,the skier accelerates. a 70.3kg water skier has an initial speed of 6.10m\s. determine the work done by the net external force acting on the skier.
asked by jaret 
science
An atom loses an electron. What will happen when it approaches a positivelycharged ion? A. The ions will repel each other. B. The ions will attract each other. C. The ions will cancel each other out. D. The ions will neither attract nor repel each other.
asked by Anonymous 
Physics
Having landed on a newly discovered planet, an astronaut sets up a simple pendulum of length 1.29 m and finds that it makes 407 complete oscillations in 698 s. The amplitude of the oscillations is very small compared to the pendulum’s length. What is the
asked by dallas 
Statistics
A truefalse test consists of 20 questions, each of which has one correct answer: true, or false. One point is awarded for every correct answer, but one point is taken off for each wrong answer. Suppose a student answers every question by guessing at
asked by AmmanJordan 
Physics
A steel piano wire, of length 1.0 m and mass 4.4 g is stretched under a tension of 650.0 N. What is the speed of transverse waves on the wire?
asked by Maegan 
ENGLISH
5. Which one of the following sentences contains an unnecessary colon? A. Here's the question on all of our minds: Will our team be able to defeat their arch rivals tonight? B. My store list included: milk, soup, chicken, and ice cream. C. She wants one
asked by NANA 
Physics
A roller coaster works by gravitational energy. The coaster car is pulled up to a high point and then released, rolling downwards on the track through all manners of curves and loops. I have a short roller coaster car that I pull up to the top of a hill of
asked by Shin 
justice system
1. “Substantive due process” refers to: A. the content of a law. B. the application of law. C. the application of penalties. D. criminal procedure. is it A 2. __________ is the act of taking a person into custody. A. Search and seizure B. Arrest C.
asked by Amy 
Maths
Ship A is 18.5km from a port P on a beearing of 045 degree and ship B is 26.4km from point P on a bearing of 105 degree. Calculate the bearing of A from B and the distance AB.
asked by Shane 
Physics
A steel piano wire, of length 1.0 m and mass 4.4 g is stretched under a tension of 650.0 N. What is the speed of transverse waves on the wire?
asked by Maegan 
Math
What is an example on how to use fractions used in graphic design.
asked by Van 
life orientation
What are the environmental factors that causes ill health or accident or diseases
asked by janine 
physics
a .45 kg ball attached to the end of a horizontal cord is rotated in a circle of radius 1.3 m on a frictionless horizontal surface. if the cord will break when the tension in it exceeds 75N what is the maximum speed the ball can have?
asked by Anonymous 
health
(A) identify and describe 3 environmental health hazards that cause ill health, crises, and or disaster within your community or any other community within south africa and globally. Include evidence that is current of the identified issues.( b)critically
asked by Mpho 
Math help please ASAP
2. Simplify the polynomial. –3f^2 + 4f – 3 + 8f^2 + 7f + 1 5f2 – 11f + 2 11f2 + 11f + 2 5f2 + 11f – 2 –5f2 + 11f – 2 No idea how to do this please explain!!!!
asked by Delilah 
math
Brianna works at a sunglass shop. She earns $9 per hour and a $1 commission for each sale she makes. From July 1 to July 5, she saves all her money and doesn’t spend anything. Each day, from July 1 to July 5, Brianna worked 4 hours. • On July 1,
asked by Anonymous 
WorldHistory
significant consequences of the Agricultural Revolution. EFFECT ON WOMEN LIVES: The British Agricultural Revolution was the cause of drastic changes in the lives of British women. Before the Agricultural Revolution, women worked alongside their husbands in
asked by (; 
Health
WITH STARS IS MY ANSWER! (*) 1) A drug created by a chemical reaction in some foods, especially fruits and grains A= neurons B= cirrhosis C= alcohol ****** D= depressant 2) Being drunk A= intoxicated ****** B= withdrawal C= alcohol D= minor 3) Cells that
asked by Sandy, (Please Check My Answers Please) :D 
Social Studies
In China, Confucius wrote down his philosophy which explained how people should live their lives. Confucianism teaches that each person should accept his or her role in society. Confucisanism became the basis for order and respect and was central in
asked by Jerald 
maths
The product of the digits of a positive twodigit number exceeds the sum of the digits by 39. If the order of the digits is reversed, the number is increased by 27. Find the number.
asked by hemant 
Physics
Consider the series RLC circuit in which R2
asked by rishabh gupta 
physics
Three charges lie along the xaxis. At x = 2.0m, a charge of 15x10^6 C is fixed. At the origin, a charge of 30x10^6 is fixed (like in question #8). Where can a third charge be placed between them so it feels no net force?
asked by help 
Retirement
1. I would like to retire in 42 years at the age of 65. The average retirement age for women is between 6062 years of age, and 6264 for men. 2. My annual amount of money I'll need after retiring would be approxiamately $26,500 (2,205*12=$26,460) using my
asked by Davoni 
Physics
a. 2 objects each of mass 200 kg and 500 kg are separated by 50 cm. Where body of mass 20 kg should be placed so that the resultant force of gravity experienced by objects equal to zero? b. launched a rocket leaving Earth. Known radius of the earth 6.4 x
asked by steffy Jane 
physics
A 16 lb block rests on a horizontal frictionless surface. A cord attached to the block, running horizontally, passes over a pulley whose diameter is 1 in, to a hanging block weighing 16 lb. The system is released from rest, and the blocks are observed to
asked by Science 
chemistry
determine the number of representative particles in each of the following and identify the representative particle: 11.5 mol Ag; 18.0 mol H20; 0.150 mol NaCL.
asked by jon 
Math
The local dinner offers a meal combination consisting of an appetizer, two soups, four main courses, and five desserts. Your diet retricts you to choosing between a dessert and an appetizer. (You cannot have both). Given this restriction, how many
asked by Don 
chemistry
how many grams of carbon dioxide can be produced when 15.g of oxygen is reacted with 25.g of c2h2
asked by maria 
math
A weather states that there is a 60% chance of rain on Saturday and a 60% chance of rain on Sunday. Explain why the chance of rain on Saturday and Sunday isn't equal to 120%.
asked by Zaid 
Math
Linda works at a pharmacy for $15 an hour. She also babysits for $10 an hour. Linda needs to earn at least $90 per week, but she does not want to work more than 20 hours per week. Show and describe the number of hours Linda could work at each job to meet
asked by Kayla 
math
a 50 foot length of rope was cut into two pieces. the first piece is 5 feet more than twice the second. what are the lengths of the two pieces of rope?
asked by alondra 
Social Studies
In China, Confucius wrote down his philosophy which explained how people should live their lives. Confucianism teaches that each person should accept his or her role in society. Confucisanism became the basis for order and respect and was central in
asked by Jerald 
Mathematics
the scale on a map is given as 1:2000000. the distance between two towns on the map is 4.3. what is the actual distance between the towns in cm (squared)?
asked by Calvin 
Finance
4.A thirty year US treasury bond has a 4.0 percent interest rate.In contrast, a ten year Treasury bond has an interest rate of 2.5 percent. A maturity risk premium is estimated to be 0.2 percentage points for the longer maturity bond. Investors expect
asked by Janaki 
Math
Suppose the quantity demanded per week of a certain dress is related to price by the demand equation p=√752x. In order to maximize revenue, how many dresses should be made and sold each week?
asked by greg 
life orintation
Discuss 5 ways in which the water pollution problem impact on the community.provide relevant sources to support your claims
asked by thokozile ndala 
Physicsplease help!!
A student in a parked car honks the horn, which has a `proper' frequency of 320 Hz. An observer in an approaching vehicle measures the frequency of the sound to be 355 Hz. Calculate the speed of the approaching vehicle. Use 340 m/s as the speed of sound in
asked by Kelly 
Music
2. What is the 2nd scale degree of D flat major? is it G flat? 8. The interval between F and A is the same as a. D and B b. A and B c. F and G d. C and E 9. A minor second on the white keys is between a. A and B b. G and A c. D and E d. E and F 10. A half
asked by mysterychicken 
Math (Combinatorics)
A lottery ball drawing machine has 50 balls, each labeled with a distinct integer from 1 to 50. Every Sunday, four different balls are drawn to determine the winning numbers. You have last Sunday's ticket with the numbers {3,7,12,15}. You missed the
asked by Shin 
Physics
Estimate the total binding energy for copper? in MeV Estimate the energy, in joules, needed to break a 3.0g copper penny into its constituent nucleons? E= in Joulea Please help me I am confused...thanks
asked by Leila 
Personal Finance
PLEASE HELP ME ASAP!!!!!!!!!!! 31. In order to effectively manage money, you need: a. A computer b. An online checking account c. A budget d. A high paying job 35. Which statement is not true about extended warranties? a. Most warranties are about 5060%
asked by Phoebe 
Math
A candy store currently sells almonds for $8.50 per kilogram and peanuts for $4.50 per kilogram. It wants to create 20 kilograms of mixed nuts that will equivalently sell for $5.30 per kilogram. How many kilograms of almonds should they use?
asked by Bob 
life orientetion
What are 5 ways in which you critically discuss how the lifestyle disease impact on the teenager?
asked by pinkie 
Function
Fahrenheit and Celsius are two measures of temperature. The temperature in degrees Celsius is equal to five ninths of 32 less than the temperature in degrees Fahrenheit. What is a function rule that represents this situation?
asked by Anon 
UDC
Utilizing a public policy of your choice from a local government where you reside, prepare a paper assessing that government’s revenues and examining possible funding options for the chosen public policy. Utilizing the local government’s annual
asked by Kareema 
Math
A rubber ball is thrown straight down from a height of 244 feet at speed of 80 feet per second. If the ball always rebounds with onefourth of its impact speed, what will be the speed of the ball the third time it hits the ground? My Answer is: 1/4*80=60
asked by Zach 
Math
You and six of your friends will go on a roadtrip. A seven passenger minivan is rented for the weekend. How many different ways can you and your friends sit in this vehicle?
asked by Lori 
math
sabina had $200 she spent 3/5 on clothes and 3/4 of the reminder on books. she saved the rest. what fraction of her money did she spend on books. how much did she spend on books and clothes altogether. what fracion of her money didnshe save
asked by sharon 
Introduction to Victimology
•a definition of victimology •its history and how it has developed •explain how its different from criminology, sociology, or psychology •Who established the first safe houses for battered women, as well as where and when these safehouses were
asked by clarence cook 
Physics Plz help me
If a galaxy is traveling away from us at 2.0% of the speed of light, roughly how far away is it? t= light years I got 2.4x10^8 light years but its wrong please help me out...thank you
asked by Leila 
physics
Charged spheres A and B are in fixed positions (like in question #6) and have charges 3.6x10^6 C and 5.4x10^6 C respectively. Calculate the net force on sphere C, which has a charge of 9.9x10^6 C.
asked by help 
math
In a set of 400 values, the mean is 121 and the standard deviation is 14. Estimate how many values fall in between each interval? a) 107  135 b)93  149 c) 79  163
asked by takierr 
Social Studies
In China, Confucius wrote down his philosophy which explained how people should live their lives. Confucianism teaches that each person should accept his or her role in society. Confucisanism became the basis for order and respect and was central in
asked by Jerald 
account
1. Business started with Cash Rs. 100,000/, Bank Balance Rs. 150,000/, Merchandise goods Rs 40,000/, furniture Rs. 5,000/ & Office equipment Rs. 30,000/ 2. Goods Purchase from ABC Co of Rs. 40,000/ on cash less 15% discount
asked by kamala neupane 
math
One of your dresser drawers contains 10 black socks and 10 blue socks. Suppose it is dark and you can’t tell what color a sock is when you look at it. If you start taking socks randomly one at a time from the drawer, how many would you have to take to
asked by emma 
physics
You are watching a marching band practice outdoors. Near you are two trumpet players, one marching directly towards you and one away from you at the same speed. Each trumpet player is playing an A (440 Hz) and you hear a beat between the two sounds at a
asked by dfghndfghncbfv 
Math
A firm manufactures light bulbs and those that come out of the assembly line are either defective or good. Every five bulbs that come out, 1 is defective. If 3 bulbs are selected at random, what is the probability that: (i) All 3 are defective (ii) All 3
asked by Maureen 
physics
each step of a ladder increases one's vertical height 40.0cm. If a 90 kg painter climbs 8 steps of the ladder, what is the increase in potential energy?
asked by Anonymous 
Math help please check
Add or Subtract for #34 3. (2x2 + 6x + 1) + (–7x2 + 2x – 3) 5x2 – 4x – 2 –5x2 + 8x – 2 5x2 – 8x + 2 –9x2 – 8x + 2 4. (3x2 – 7x – 4) – (6x2 – 6x + 1) –3x2 – x –5 –3x2 –13x + 5 9x2 – x + 5 3x2 – 13x – 5 My answers:
asked by Delilah 
Algebra 1
Factoring Polynomials: 2x to the second power 3x2 could you please explain to me how to do this.
asked by Cassandra 
Chemistry
A salt solution is evaporated to dryness. If 66.5 g of the solution leaves 1,492 mg of dry salt, what is the percent concentration (w/w) of the salt in the solution?
asked by Marsha 
math
The Chen Family spends 1/3 of their budget on housing costs and 2/5 of their budget on food and clothing. What is the fraction of their budget is left to spend on items other than housing, food, and clothing? Explain how you found your answer.
asked by jalia 
art
What are the subclaims in Bernini's works of art
asked by jan 
Math (Algebra)
The Problem is that 3 people go to lunch. They decide to share the $12 bill evenly. How much does each person pay? The Equation is 3x=12 #1. What is the value of x? #2. Solve for x #3. Answer the question.
asked by Sydney 
parabolas
Find the equation and sketch the parabola that has vertex V (1; 0) and focus F(4; 0).
asked by dylan 
gas stoiciometry
What volume of ammonia gas will be produced when 1.44 L of nitrogen react completely in the following equation? N2 + 3H2 = 2NH3
asked by Jenny 
Math
What is the measure of the side of a cube if the volume is 27000cm3?
asked by Annika 
Physical Science
1. What is molarity of products? I can't decide if it's a. The concentration of the reactants measured in mol/L of solution or b. The concentration of the products measured in mol/L of solution 4. How does pressure relate to reaction rates? I'm stuck
asked by mysterychicken 
ENGLISH
6. Which of the following sentences contains correct usage of its/it's? A. Its only a game. B. Let's go out on Friday; it's my birthday! C. The dog chased it's tail until it got dizzy. D. My grandmother always said, "Its not if you win or lose, but how you
asked by NANA 
embryology
what is gud book to study about embryology
asked by minas 
Physics
Consider the following standing wave, (all units are SI) z=0.2sin(0.4y)cos(350t) (a) The values of t where the displacement at all values of y equals to zero are of the form : t=c+dn, where n=0,±1,±2,3, etc. What is c? What is d?
asked by rishabh gupta 
math
there were twice a many black cars as red cars in the parking lot. there were 36 total black or red cars in the parking lot. How many red and how many black are there?
asked by Anonymous 
Math
Mr.Wood went to the stores to buy school supplies for his children. He spent half of his money plus $5 at Store A. He then spent half of the remaining money plus $10 at Store B. At the end he had $25 left. How much money did Mr. Wood start with?
asked by Cheryl 
Physics
You are watching a marching band practice outdoors. Near you are two trumpet players, one marching directly towards you and one away from you at the same speed. Each trumpet player is playing an A (440 Hz) and you hear a beat between the two sounds at a
asked by Mathslover Please help 
Math
The total age of 4 brothers and sisters is 38. Barry is two years older than Carrie. Larry is one year older than Barry. Gary is five years older than Carrie. How old is each?
asked by Seaira 
Physics
A motorbike starts from rest at time t=0 and begins to accelerate around a circular track as shown in the figure below. Eventually, at time t=t1 the motorbike reaches the maximum velocity possible without slipping off the track. What's the minimum length
asked by Mathslover Please help 
Physical Science
1. What is molarity of products? I can't decide if it's a. The concentration of the reactants measured in mol/L of solution or b. The concentration of the products measured in mol/L of solution 4. How does pressure relate to reaction rates? I'm stuck
asked by mysterychicken 
algebra
tickets to a museum cost $5 for general admission and $2 with student ID. On Friday night 200 tickets were sold for $625. How many general admissions tickets were sold.
asked by bryce 
science
how many oxygen atoms are in 773.2g of carbon dioxide? and also what is the molar mass of an element where 3.4 moles of the element has a mass of 669.69g? which elent is it?
asked by wardy 
math
Fred arrives at the subway station every day at a random time and takes the first train that arrives. If he takes the A train, which arrives each hour on the hour, he ends up at the fitness center. If he takes the B train, which arrives every hour 15
asked by megan 
math
One of your dresser drawers contains 10 black socks and 10 blue socks. Suppose it is dark and you can’t tell what color a sock is when you look at it. If you start taking socks randomly one at a time from the drawer, how many would you have to take to
asked by emma 
physics
a ball is dropped from a point heiht above the ground.on striking the ball it rebounds with a small speed as it strikes with the ground and would hence come up to same height from were it was dropped and motion remained infinetly?draw xt gaphs?
asked by lalita 
mill creek high
what are some examples of archetype in the book
asked by maria 
Sports : Softball
I am always in sports. i have been playing softball lately and my arm starts to hurt when i throw sometimes it get so bad that the pain goes to my elbow. i can say it is noticing when i play that i am not throwing as hard as i can and then i git yelled at
asked by Lonita 
maths
The magician, The Great Ziginy, is planning his next world tour. He knows a total of 7 different illusions but he only has time to perform 4 of them at any show. The Great Ziggy does not want any two of his shows to be identical, so they cannot contain the
asked by Sahil 
math
question 1 use the laws of logarithms to simplify the expression Inx(x+2)(x+1) question 2 (18m^2n+6m^3n+12m^4n^2)/ (6m^2n)
asked by mimi 
Math, Gr 10
A rectangular field is to be enclose by 800 meters of fencing and the fourth side with be along the side of a barn. A) What dimensions will give the maximum area? B) What is the maximum area?
asked by Anne 
Chemistry
Calculate the volume of 2.45 M NaI that would be needed to precipitate all of the Hg+2 ion from 185 mL of a 2.44 M Hg(NO3)2. AND Calculate the molarity of an acetic acid solution if 47.81 mL of the solution is needed to neutralize 147 mL of 1.32 M sodium
asked by Marsha 
math
Flora’s class collected 236 books. They are placing the books in boxes. If each box holds 8 books, how many boxes can they fill? if there are books left over, what portion of the last box will be filled? 30 full boxes 29 full boxes and 1 box that is full
asked by Anonymous 
math
Three forces act on a hockey pick as it slides across the ice; the normal force N represents the force the ice exerts upward on the puck and is given by N= , the gravitational force G represents the downward force of gravity on the puck and is given by G =
asked by Ryan 
stats
What does the best estimate mean after doing the liner regression equation
asked by Anonymous 
Math
Mr. Wood went to the stores to buy school supplies for his children. He spent half of his money plus $5 at Store A. He then spent half of his remaining money plus $10 at Store B. At the end he had $25 left. How much money did Mr. Wood start with?
asked by Cheryl 
Physics
A transverse wave traveling in a string takes 1.61 s to move 13.2 m. The mass of a 9.2 m piece of the string is 1.5 kg. What is the tension in the string?
asked by Maegan 
Maths
Please help me.Iam stuck. Find all the possible values of theta between 0 degree and 360 degree for the following quadratic equation. State the quadrants in which each angle lie. 8 tan^2 theta + 2 tan theta=15
asked by Shane 
Life Science
If a sponge (from the ocean, not a cleaning sponge. :P) were torn apart by a predator, what would happen?
asked by Whitney 
Social Studies
I need a 4 paragraph essay on the devil's arithmetic. my theme is "no laugh, no hope. NO hope, no life." THANK YOU (: im not passing and i reallllllly neeed help on this
asked by Kali 
life orientation
identify and describe three environmental health hazards that cause ill health,crises,and or disasters within mamelodi
asked by thabang 
statistics
A player pays a $1 to play a game. With probability 0.001 the player wins $900, with probability 0.005 the players wins $10. What is the players expected win per game?
asked by ina 
Physicsplease help!!
A hydrogen atom, when vigorously perturbed, can emit light with a frequency of 6.16·1014 Hz. When the same light from hydrogen atoms in a distant galaxy is observed on earth, the frequency is 5.76·1014 Hz. Calculate the speed at which the galaxy is
asked by Kelly 
Trig
cos[(tan^1(3/4))+(cos^1(9/41))]
asked by Hannah 
math
A candy store currently sells almonds for $8.50 per kilogram and peanuts for $4.50 per kilogram. It wants to create 20 kilograms of mixed nuts that will equivalently sell for $5.30 per kilogram. How many kilograms of almonds should they use?
asked by Narendra 
Socials
I had posted some of these questions a few days ago, but i had trouble finding the answers to these questions in the sites. Can you please answer them with giving sites. Thanks :) what are some fun things to do in guadeloupe(ex: biking, water skiing,
asked by Tess 
GRAMMAR
WHAT IS THE DIFFERENCE BETWEEN FARTHEST AND FURTHER
asked by Anonymous 
Java
Verify the check digit in a barcode. Some of the most common barcode standards have check digits which are fairly easy to calculate. UPC (12 digits) are among the most common barcode standards you will find. The check digit is calculated like this: •the
asked by Solomon Hanasab 
Life science
How would u experiment be affected if you added a few drop of concetrated sodium hydroxide to test tube
asked by Rethabile 
Math
What is my rule if my in number is 2/5 and out is 3/5. The next set of numbers are 1/10 and 3/10. The next set just gives me the in number of 4/5, but not out. Next no in number, but 9/10 as my out and the last one has no in number but 1/2 as my out?
asked by Kim 
Personal Finance
PLEASE HELP ME ASAP!!!!!!!!!!!! 32. Which is not a horrible mortgage option? a. ARM b. Conventional c. Reverse mortgage d. Balloon I answered c and I am not sure if that is right or not. 33. Why do you plan for retirement instead of relying on Social
asked by Phoebe 
life orientation
5 ways of pollution which the human or environmental problem impacts on the community
asked by lucia mokoena 
Math (algebra)
Suppose a and b are positive integers satisfying 1≤a≤31, 1≤b≤31 such that the polynomial P(x)=x^3−ax^2+a^2b^3x+9a^2b^2 has roots r, s, and t. Given that there exists a positive integer k such that (r+s)(s+t)(r+t)=k^2, compute the maximum possible
asked by Mathslover Please help 
Life orientation
What are 2 institutions that are involved in supporting drug abuse?
asked by Ramoroka unice 
Math
What is the fraction when there are 26 tiles in total and 14 of them are gray??
asked by Chantel 
math
find the missing side of the triangle b=2.1 c=29
asked by j 
PreAlgebra
Tempurature of substance increases by 10°C in 5 minutes. Write it as a unit rate. Then convert it to degrees Fahrenheit per hour.
asked by Joyce 
chemistry
An ideal gas in a sealed container has an initial volume of 2.45 L. At constant pressure, it is cooled to 23.00 °C where its final volume is 1.75 L. What was the initial temperature?
asked by Doll 
math
Are all quadratics of the form y = ax^2+bx +c and y = ax^2+bx +c functions? Explain your answer.
asked by Key 
statistics
The probablility that a person drinks at least five cups of coffee per day is .24, and the probability that a person has high blood pressure is .08. Assuming that these two events are independent, find the probability that a person selected at random
asked by Anonymous 
math
What is x^2+6x91 when factored ???!!
asked by cely 
physics
A motorbike starts from rest at time t=0 and begins to accelerate around a circular track as shown in the figure below. Eventually, at time t=t_1 the motorbike reaches the maximum velocity possible without slipping off the track. What's the minimum length
asked by dfghndfghncbfv 
Functions?
find the range of f(x) = 2x+6 for the domain {1,3,7,9}
asked by Anon 
physics
A typical science question young people have is "Why can a glass can contain water?" and a typical answer is "Because the distance between molecules that make up the glass is smaller than the size of each water molecule." This isn't quite right though.
asked by dfghndfghncbfv 
L.O
Identify and describe 3 environmental health hazards that cause ill health,crises,and or disasters within your community or any other community within south africa and globally.inlcude evidence that is current of the identified issues
asked by Irene 
Gas Stoichiometry
What mass of ammonia is produced when 3.08 L of nitrogen (at STP) react completely in the following equation?
asked by Jenny 
Math (Algebra)
What is the remainder when 5×55×555×…×555,555,555 is divided by 100?
asked by Bob 
Justice system
1. Murder implies malice, whereas __________ does not. A. manslaughter B. willful homicide C. forcible rape D. aggravated assault is it A 2. __________ involves sexual intercourse with a corpse. A. Pederasty B. Bestiality C. Necrophilia D. Buggery is it C
asked by Amy 
Physics Plz help me
The activity of a sample of 35(upper#) 16(lower#)Sulfer (T 1/2= 7.55x10^6 s) is 2.51x10^5 decays per second. WHat is the mass of the sample? m= in grams PLease help me out...Thank you! :)
asked by Leila 
Calculus
A function is implicitly defined by x^2  4y^2 = 9 Find the equation of the tangent to the function at x = 1
asked by Grant 
Pre calc
Write the equation in standard parabola form? x^2+ 4xy +4y^2 +5root5 y+ 5 = 0 Thanks so much!
asked by Rebekah 
History HELP!
Describe the chain of events for a wounded soldier during the civil war; how and where they would be transported, what would happen to them, etc. (provide details!!!!) I need help.
asked by kiki 
history
write a brief description of the civil war activities in southern california from 18611865.
asked by katie 
Hospitality Management Accounting
i don't really understand what kind of calculations they are asking for Charlie is thinking of spending $3,000 more in year 2004 on advertising (part of marketing expense). Because of his marketing courses, he believes he can design appealing
asked by fad 
Maths
168 children went to a them park. If 1/3 of the girls is equal to 4/9 of the boys, how many boys went to the theme park?
asked by Alex 
science help plzzzzzzzzzzzzzzz?
A planet orbiting a star is occasionally hit by comets. Each comet has a mass of 4.8 × 10^6 kg of which 30% is rock and 70% is water ice. Each time a comet hits the planet 40% of the mass of the comet is vaporised and the rest is added to the planet,
asked by john help me with this question plz 
WorldHistory
What factors led to Robespierre becoming a dictator? Beginning with the execution of Louis XVI in January 1793, France faced an increase in food riots, large popular insurrections and devastating treasonous acts by those thought to be patriots. Also,
asked by (; 
hurry! math
Find the value of x in 125^x2 + 125^x3 = 125^x4.with explanation
asked by hurry! nick 
physics
While waiting to board a helicopter, you notice that the rotor's motion changed from 340 rev/min to 265 rev/min in one minute. Assuming that this acceleration remains constant, calculate how much longer (in seconds) it will take for the rotor to stop.
asked by Anon 
Chemistry
A certain gas has a solubility of .50 g/L under a pressure of 1500 torr. What would its solubility be a 2250 torr?
asked by Bill 
Probability and Statistics
There are 15 marbles in a jar.Five are red,four are blue, and six are yellow.If you draw two blue at random (without replacement), what is the probability that the second marble is blue?
asked by Kim 
chemistry
What is the difference between the two strong acids, nitric and hydrochloric acid, when they behave as the oxidised forms in a reduction halfequation?
asked by alex 
Math
The AC voltage coming out of a standard wall plug in the United States can be expressed as the function V(t) = 120sin(120*pi*t), where t represents time (in seconds) and V is the voltage. We will let t be greater than or equal to 0 for simplicity. A. Make
asked by Natalie 
Maths
Please help me.Iam stuck. Find all the possible values of theta between 0 degree and 360 degree for the following quadratic equation. State the quadrants in which each angle lie. 8 tan^2 theta + 2 tan theta=15
asked by Shane 
life orientation
discuss 10 ways in which the environmental health hazard can impact negatively in one's health
asked by Anonymous 
Trig
csc thea= 2, quadrant 4. what are the six trig functions?
asked by Shay 
maths
Please help me simplify this and show full working out. (a) (2x^3 divide 3y^4)^2 multiply (x divide 3y)^2 (b) aa^1 divide a^2  1 (c) 3^a+2 times 9^2a+1 divide by 6^2 times 3^5a+3
asked by Shane 
history
Which of the following is true with regards to The Navigation Acts by the eighteenth century? A In general, the colonist despised the acts and smuggling was rampant. B The Navigation act of 1696 abolished the American customs service. C The colonists
asked by jake 
stats
Does the regression line equation change if you change the independent and dependent variable
asked by Anonymous 
management science
Suppose the results of an IQ test are normally distributed, with a mean of 10 and a standard deviation of 16. If 150 people took the test, how many do you expect would score between 95 and 130?
asked by Susan 
maths
Please I need help.Show full working out. (a) sin x cot x= cos x (b) (1 + tan theta)^2 + (1 tan theta)^2 = 2sec^2theta
asked by Shane 
4th grade math
Bryan is putting fencing around his new rectangular vegetable garden. He uses 140ft of fencing material. How wide is the garden? Ther is a rectangular diagram that shows the bottom number is 40ft
asked by Charisse 
Algebra 2
Find the expansion of (r + 4)^3. r^3 + (3r^2)(4) + 3r16 + 64?
asked by Lily 
5th grade math
What is 508 times 7?Thanks if you help:)
asked by Kim 
algebra
how do i figure: (12a^2b^6)^3 over (9a^3b^9)^3
asked by lou 
life orientation
In 1015 lines critically discuss 5 ways in which the environmental problems impacts on the community. Provide relevant source to support you answer.
asked by serisha 
chemistry
When boiled with concentrated aqueous alkali, fats and oils dissolve, but waxes do not. Explain the difference.
asked by Moyer 
Physics
A typical model rocket has a mass of 50 g. Similarly, a typical "class C" model rocket engine can produce a total impulse of 10 Newtonseconds. We usually launch model rockets vertically, but if I instead launched this rocket horizontally, how fast would
asked by KK 
Math: Surface Area
How would you find the area of the curved surface between the top and bottom of a can?
asked by Celest 
Math
If 10 degrees f rises 6 degrees, what is the temp?
asked by Anonymous 
?
What does titi mean
asked by Anonymous 
immunology
do monocytes derive from killer T cells?
asked by Jess 
chemistry
We have a tank that contains O2 at 146 mmHg, N2 at 146 mmHg, and CO2 at 138 mmHg. We then add 135 mmHg of Ar. What is the pressure in the tank?
asked by Jenny 
math
I have 50.00 to buy 50 animals. Chickens are .50, cows are 2.50,and birds are 5.00. How many of each animal can i purchase?
asked by chelsea 
human life
critically discuss 10 ways in which air pollution can impact negatively on health
asked by Anonymous 
social studies
Why were Palestinians kicked off their land by the Jews?
asked by Palestine 
Math (Probability)
Four players are playing a game involving choosing squares on a grid of size 3×8. Each player chooses a random square on the grid, then all players reveal their choices and a token is placed in the center of each of these squares. The probability that the
asked by Bob 
chemistry
how many grams of iron (iii) nitrate are needed to produce 25.0 g of iron (iii) sulfate form sulfuric acid?
asked by jinie 
Math Multiplying Fractions
Multiply. Simplify if you can 1. 1/4x5/6= 5/24 2.3/7x3/4= 9/28 3.4x1/5=4/5 4.5/12x2=5/6 5.3/5x10= 6 6.2/3x3/8= 1/4 7.1/7x1/7= 1/49 8.2/9x1/2= 1/9
asked by Jerald 
Algebra
What is the sum of all positive integers N
asked by Mary 
Math
The president has a brother the brother dose not have a brother how is this possible?
asked by Camille 
Derivatives
I have gotten so many different responses from mine on this question Can someone PLEASE write out the steps for me for this. Thanks f'(x)= 2x/(x^2+1) Find the second derivative. I get 4x^3 + x^2 12x + 1
asked by Alaina 
algebra!!!! please help me!!!!
What is the sum of all positive integers N≤1000 such that N equals 13 times the digit sum of N?
asked by fudgee 
chemistry
Calculate the concentration of each solute and each ions when 25.0 mL of 18.0 M H2SO4 is mixed with 130.0 mL water
asked by Anonymous 
Math Multiplying Fractions
Multiply. Simplify if you can. 2.1/3x2/5=2/15 4.2/5x3/7=6/35 6.1/6x3/5=3/30 8.9/10x4/5=36/50 10.11x3/4=33/4=8 1/4 12.4/9x2/3=8/27
asked by Jerald 
calculus
Set up the integral that would be used to find the volume of the solid obtained by rotating the region bounded by y=x^3 , y=8, and x=0 about the x=4. use disk/washer method.
asked by diego 
math
Consider the region bounded by the curves y=5 and y=5 and y = x +4/x. set up the integral that would be used to determine the volume if the region was revolved about x = 1
asked by diego 
math
a musical triangle has a perimeter of 180 mm. the side of middle length is 2 times as long as the shortest side. the longest side is 3 times as long as the middle side. how long is each side
asked by ed 
Chemical engineeing
Can someone help me with online exam ( fundamental of chemical engineering class ) ? Please eamil me ( davd_jo(at)(ya h o o )dot (com ) I'll offer money
asked by Dave 
5th grade math (word problems)
Can you explain how to do the following problems? 1. Order these fractions from Greatest to least. 3/12, 5/8, 1/4, 7/8, 4/16 work: find least common denominator 3/12 = 12/48, 5/8 = 30/48, 1/4 = 12/48, 7/8 = 42/48 answer = 7/8, 5/8, since 3/12 and 1/4 are
asked by Alex 
life orientation
In 1015 lines critically discuss 5 ways in which the human or environmental problem impact on the community in related to substance abuse
asked by mmathapelo 
Physics
In a series AC circuit, R=20(ohms), Xl=10(ohms), and Xc=25(ohms), where the frequency is 400 Hz. Find the resonant frequency of the circuit.
asked by John 
is this correct algebra 1
(x^2 5)+ (4x^2 3) 5x^24x1520x 5x^224x15
asked by anonymous 
life orientation
In 1015 lines critically discuss 5 ways in which the pollution as the environmental problem impacts on the community.provide relevent sources to support your claim
asked by eunice 
Science
Where can liquid manure be obtained from?
asked by Juanita 
Science
How a lack of nutrients in the soil can affect plant growth?
asked by Sasha 
Math Multiplying Fractions
14.16x5/12=80/192 16.1/5x10/11=2/11 18.1/10x4/7=4/70=2/35 20.5/9x18=90/9=10
asked by Jerald 
Math
What is the dollar amount for the cement needed for a sidewald that is 4 inches thick, 3 feet wilde, and 40 feet long if the cement is sold for $76 petr cubic yard. Calculate the problem using fractions to avoid rounding errors caused by repeating
asked by Alice 
Computers
Help guys..here is what I need.. and unfortunately I need this in like 2 hours...my computer crashed with all my work so please anyone help... Write a console application that has a furniture and appliance dealership needs you to create a sales screen to
asked by Kevin 
l.o
5 ways in which the human or environmental problem impacts on the community. Proide relevent sources to support the claims.
asked by sthembile 
Life orientation
(A)IN 1015 lines critical discuss 5 ways in which the human or environmental problem impacts on the community . Provide relavant sources to support your claims.
asked by Samkelisiwe 
life orientation
In 1015 lines discuss 10 ways in which pollution impacts on the community.provide references
asked by eunice 
Life orientation
(A)IN 1015 lines critical discuss 5 ways in which the human or environmental problem impacts on the community . Provide relavant sources to support your claims.
asked by Samkelisiwe 
jewler
what birthstone is october
asked by JERALD 
Physics Plz help me
The activity of a sample of 35(upper#) 16(lower#)Sulfer (T 1/2= 7.55x10^6 s) is 2.51x10^5 decays per second. WHat is the mass of the sample? m= in grams PLease help me out...Thank you! :)
asked by Leila 
Math
Evaluate each expression if x=4,y=2/3 and z=1/4 22.3/8x 12/8=1 1/2 24.3x=12 26.9y=36 28.yz=2/12=1/6 30.xyz Im not sure
asked by Jerald 
health information
I need to research the root cause of disease classification structure and how it is linked to the outcomes of both the reimbursement and the epidemiological data. how do I research these topics? Or can you explain these instructions better? I asked the
asked by Mary 
Ashford
Provide a scientific hypothesis and explain how one might go about testing it, either by confirming the hypothesis or using Karl Popper's strategy of disconfirmation. Discuss which of these two strategies is better and why
asked by Kawi 
History
In World War 2 why did the dictors think they could take over Europe and other places??
asked by Moby 
life orintation
name two community/organizations that are invloved in supporting or giving redress to drought
asked by nqobile 
Life orientation
In 1015 lined critically discuss 5 ways in which the human or environmental problem impacts on the community.provide relavant sourrces to supprt your claims
asked by Samkelisiwe 
Calculus
In a right triangle, if one leg (adjacent to 90 degrees) is 10cm, which is increasing at the speed of 2cm/s; and another leg is 24 cm, which is decreasing at 2cm/s. how fast is the hypotenuse changing at this time?
asked by Nancy 
Math (algebra)
Let x=2013, y=140542, z=−142555. Find [(x−y)/z + (y−z)/x + (z−x)/y]*[x/(y−z) + y/(z−x) + z/(x−y)].
asked by Mathslover Please help 
Math
Let ϕ(n) be the Euler Phi Function. If 1≤n≤1000, what is the smallest integer value of n that minimizes ϕ(n)n? Details and assumptions Clarification: You are asked to find the value of n, not ϕ(n)n. ϕ(1)=1 by definition.
asked by Mathslover Please help 
Math
23 times 17
asked by Nickos 
finance
Calculate the IRR of the following project: Year Cash Flow 0 $30,000 1 $40,000
asked by Candice 
Physics
In the following circuit R_1=3 Ohm, R_2=10 Ohm, C=0.003 Farad, V=5 Volts. At time t =0 we connect the power supply to the circuit. At t=0 the capacitor is uncharged. (a) What is the time constant tau (in seconds) to charge up the capacitor? (b) What is the
asked by Phy 
Physics
Consider a glass with full of water of mass density ρ=1,000 kg/m3 and height h=20 cm. There's a circular hole in the bottom of the glass of radius r. The maximum pressure that pushes the water back into the hole is roughly (on the order of) p=σ/r, where
asked by Mathslover Please help 
Math
The Distance from the top of a cliff to the water below ranges from 13m(low tide) to 8m(high tide). Low tide occurs at 12:00 noon and it takes six hours between low tide and high tide. a)Develop an equation representing the distance in terms of time b) It
asked by Josh 
Math
Where does the equation cross the yaxis Y=1.25x+37
asked by Anonymous 
Ngono
What is alcoholism?
asked by Neshy 
maths
For all positive integers n, let f3(n) be the representation of n in base 3, considered as a number in base 10. For example, since 5 in base 3 is 123, so f3(5)=12. What is the sum of all positive integers n such that f3(n)=8⋅n?
asked by hemant 
Math (Algebra)
If the sum of 3 nonzero distinct real numbers a, b, and c is 2, and the two sets {a,b,c} and {1/a,1/b,1/c} are the same, what is the value of a^2+b^2+c^2? Note: Two sets are the same if there is a onetoone correspondence between their elements. For
asked by Bob 
statistics
A random number generator draws at random with replacement from the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. In 5000 draws, the chance that the digit 0 appears fewer than 495 times is closest to 25%,30%,35%,40%,45%,50%
asked by Anonymous 
CalculusCheck please?
Fabio stands atop his 16 foot ladder when he realizes that the ladder is slipping down the side of the building. He decides that the base of the ladder is moving away from the bottom of the building at a rate of 2 feet per second when it is 3 feet from the
asked by Alaina 
Life Orientation
describe 3 environmental health hazards that cause ill health in south africa globally?
asked by veronique stevens 
5th grade Language Arts
I was given an assignment to add suffixes ( ible, ive, and ion) to certain root words. I can't seem to find any words for post using the above suffixes. I've tried searching dictionary and roots with post. Are there any words that can be made without
asked by Alex