# Questions Asked onOctober 22, 2011

1. ## Chemistry

Without calculating any frequeny values, select the highest frequency transition in the hydrogen atom. 1. From n= 4 to n= 6 2. From n=6 to n=8 3. From n=9 to n=11 4. From n=11 to n=13

asked by Anonymous
2. ## physics

A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. The total mass of the wagon, rider, and rock is 94.0 kg. The mass of the rock is 0.350 kg. Initially the wagon is rolling forward at a

asked by Sam
3. ## Math

Two faucets can fill a tank in 1 hour and 20 minutes. The first faucet takes more than two hours longer to fill the same tank when functioning without the second tap. How long does it take to fill each one separately? Explain your solution

asked by Louis
4. ## Chemistry

How many mole of H2 will be produced if 0.500 grams of magnesium is reacted with 10.00mL of 2.0 M HCl? I've concluded the answer is 0.02 moles of H2, but I'm doubting myself a lot because I don't understand the aspects of the balanced chemical equation and

asked by Martin
5. ## Calculus (Limits)

Let f be defined as follows, where a does not = 0, f(x) = {(x^2 - 2a + a^2) / (x-a), if x does not = a 5, if x = a Which of the following are true about f? I. lim f(x) exists as x approaches a II. f(a) exists III. f(x) is continuous at x = a. A. None B. I,

asked by Mishaka
6. ## Physics

a system consists of four particles how many terms appear in the expression for the total gravitational potential energy of the system

asked by Mary

a 6,000 seat theater has tickets for sale at $26 and$40 . How many tickets must be sold at each price for a sell out performance to generate a revenue of $178400? asked by beechst 8. ## physics Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Assume the orbit to be circular and 720 km above the surface of the Moon, where the acceleration due to gravity is 0.839 m/s2. The radius of the Moon is asked by carlton 9. ## Chemistry Which of the following have quantized values? The question may have more than one correct answer. 1. The pitch of a note played on a slide trombone because the pitch varies based on the position of the slide. 2. The pitch of a note played on a flute asked by Anonymous 10. ## college physics A 0.384 kg puck, initially at rest on a horizon- tal, frictionless surface, is struck by a 0.189 kg puck moving initially along the x axis with a speed of 2.7 m/s. After the collision, the 0.189 kg puck has a speed of 1.7 m/s at an angle of 28 to the asked by Tom 11. ## Chemistry 105 How many mL of O2 will form from 55.2g KClO3? asked by Tina 12. ## Statistics A retail shop accepts only cash or checks. Suppose that 54% of its customers carry cash, 51% carry checks, and 71% carry cash or checks (or both). What is the probability that a randomly chosen customer at the shop is carrying both cash and checks? asked by Nicole 13. ## physics Solar luminosity is estimated to have been 30% lower than today at the time when the solar system formed, 4.6 billion years ago. (a) If Earth's albedo was the same as it is now (A=0.3), what would have been its effective radiating temperature Te at that asked by Set6 14. ## quiz Suppose you adjust your garden hose nozzle for a hard stream of water. You point the nozzle vertically upward at a height of 1.5 {\rm m} above the ground (see the figure ). When you quickly move the nozzle away from the vertical, you hear the water asked by Anonymous 15. ## Science Lithium atoms, like hydrogen atoms, have only a single electron in their outer shells, yet lithium atoms do not join together to form Li2 molecules the way hydrogen atoms form H2 molecules. Instead, lithium is a metal with each atom part of a crystal asked by Sheryl 16. ## physics A 1.0 kg object is given a push along a horizontal surface. If the velocity of the object when it is released is 0.50 m/s west, and the object slides 0.25m before coming to a stop, what is the magnitude of the force of friction? asked by Anonymous 17. ## physics a 250 kg crate is placed on an adjustable incline plane. If the crate slides down the incline with an exceleration of 0.7 m/s squared when the incline angle is 25 degrees, then what sould the incline angle be in order for the crate to slide down the plane asked by uta 18. ## chemistry aspirin tablets contain about 5 grains of aspirin. About 10 grams of aspirin constitute a fatal dose. How many tablets would this be? (There are approximately 15 grains in a gram) asked by Jay 19. ## Chemistry Calculate the energy, in joules required to ionize a hydrogen atom when its electron is initially in the n=2 energy level. asked by Anonymous 20. ## AP US History I am writing an APUSH DBQ and I have what I think is a pretty winning thesis but I am having problems coming up with a good, interesting opening sentence. I figure once I have the first paragraph figured out the rest will flow rather easily. I also need to asked by Tay 21. ## Chemistry What are the wavelengths, in nanometers, of the bright lines of the hydrogen emission spectrum corresponding to the transition: n=5 to n=2. asked by Anonymous 22. ## Statistics 18. The Intelligence Quotient (IQ) test scores are normally distributed with a mean of 100 and a standard deviation of 15. Given a class with 25 students, what is the probability that the class' average IQ score is between 85 and 115? A) 0.0026 B) 0.4987 asked by Steph 23. ## Calculus (Continuity) If the following function is continuous, what is the value of a + b? f(x) = {3x^2 - 2x +1, if x < 0 a cos(x) + b, if 0 asked by Mishaka 24. ## To Ciara Please do not post any more insurance questions in this forum. I don't believe they are 9th grade questions. They look more like ads for insurance. If you post any more you'll be banned from posting on this board. asked by Ms. Sue 25. ## physic What hanging mass will stretch a 2.2-m-long, 0.40 - diameter steel wire by 1.1 ? asked by roadking 26. ## Calculus If g(x) is continuous for all real numbers and g(3) = -1, g(4) = 2, which of the following are necessarily true? I. g(x) = 1 at least once II. lim g(x) = g(3.5) as x aproaches 3.5. III. lim g(x) as x approaches 3 from the left = lim g(x) as x approaches asked by Mishaka 27. ## Calculus An ice cube is melting such that the side of the cube is decreasing at the rate of 1/4 t^2 cm / min. It is given that the side of the cube is 8cm at the start of the experiment. Calculate the length of the side of the cube when t = 4? ( answer 2 2/3 cm) asked by Kelvin 28. ## Chemistry What is the frequency of the photons emitted by the hydrogen atoms when they undergo transitions from n=5 to n=3? In which region of the electromagnetic spectrum does this radiation occur? asked by Anonymous 29. ## Calculus (Limits) If g(x) is continuous for all real numbers and g(3) = -1, g(4) = 2, which of the following are necessarily true? I. g(x) = 1 at least once II. lim g(x) = g(3.5) as x aproaches 3.5. III. lim g(x) as x approaches 3 from the left = lim g(x) as x approaches asked by Mishaka 30. ## Chemistry Write a net ionic equation for the overall reaction that occurs when aqueous solutions of potassium hydroxide and carbonic acid are combined. KOH + H2CO3 = KCO3 + H30 K^+(aq) + OH^-(aq) + h2CO3 (aq) = K^+(aq) + CO3^2+(aq) + H3O(aq) Is this correct so far? asked by Hannah 31. ## Chemistry The hydrogen atomic emission spectrum includes a UV line with a wavelength of 92.3 nm. Is this line associated with a transition between different excited states or between an excited state and the ground state? What is the value of n1 of this transition? asked by Anonymous 32. ## Math trig a ladder 24 feet long leans against the side of a building, and the angle between the ladder and the building is 25°. a) approximate the distance from the bottom of the ladder to the building. b)if the distance from the bottom of the ladder to the asked by jule 33. ## chemistry/ partial pressure N2 was collected over water at 25 degrees C. The resulting pressure was 705 torr. The vapor pressure of water at 25 degrees C is 23.8 mm. What is the partial pressure of N2? asked by Bianca 34. ## physics A boat moves through the water with two forces acting on it. One is a 2000 N forward push by the motor on the propeller, and the other is an 1741 N resistive force due to the water around the bow. What is the acceleration of the 1020 kg boat? Answer in asked by brain 35. ## physics The highest barrier that a projectile can clear is 15.8 m, when the projectile is launched at an angle of 13.4° above the horizontal. What is the projectile's launch speed? asked by Nick 36. ## Statistics 28. A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spend studying per week. Based on a simple random sample, they surveyed 144 students. The statistics showed that students asked by Steph 37. ## chemistry a 2.00-liter sample of a gas has a mass of 1.80 grams at STP. What is the density , in grams per liter , of this gas at Stp? asked by Anonymous 38. ## physics A 3.00 kg block starts from rest at the top of a 33.0° incline and slides 2.00 m down the incline in 1.75 s. Find the coefficient of kinetic friction between the block and the incline asked by Johnna 39. ## PROBLEM SOLVING IN MATHEMATICS The Andersons are buying a new home. They need to fence the yard because they have a dog. The yard is 72 ft. by 120 ft. Each fencing section is 8 ft. How many sections will they need? How many posts will they need? (a post is needed at the end of each asked by alya 40. ## Pre Calculus Exponential Growth and Decay Find the half-life of a radioactive substance that decays by 5% in 9 years. asked by Josh 41. ## Stastics Suppose cars arrive at Burger King's drive-through at the rate of 20 cars every hour between 12:00 noon and 1:00 pm. A random sample of 40 one-hour periods between 12:00 noon and 1:00 pm is selected and has 22.1 as the sample mean number of cars arriving. asked by Emma 42. ## science Amy needs 5.0 V for some integrated circuit experiments. She uses a 7.5 V battery and two resistors to make a voltage divider. One resistor is 310 . She decides to make the other resistor smaller. What value should it have? asked by Aimee 43. ## algebra a truck rental company rents a truck for one day charging$29 plus $0.10 per mile. Write a linear equation that relates the cost C in dollars, of renting the truck to the number x of the miles driven. Also, what is the cost of the truck for 185 miles & 363 asked by beechst 44. ## physics Problem 2: A body A of mass m = 1Kg and a body B of mass M = 4Kg are interconnected by a spring as shown in figure below. The body A performs free vertical harmonic oscillation with amplitude a = 1.6 cm and frequency ω= 25/s. Neglecting the mass of asked by nino 45. ## physics The tropospheric lapse rate (the rate at which temperature decreases with altitude) is approximately 6°C per kilometer. Given that the mean surface temperature of Earth is 288 K and the effective radiating temperature is 255K, from what altitude does most asked by Set6 46. ## Spanish-SraJMcGin please check I had asked a question the other day but I'm not sure if I'm understanding this- it was a comparison-You said this as a comment: Spanish-8th grade - SraJMcGin, Thursday, October 20, 2011 at 4:02pm 3. also = de las tres actividades Also, #3 is different asked by Victor 47. ## trig as a hot air balloon rises vertically, its angle of elevation from point P on level ground 110 kilometers from th epoint Q directly underneath the balloon changes from 15 degree 5' to 31 degree 45'. Approximately how far does the balloon rise during this asked by sam 48. ## Calculus (Continuity) If the following function is continuous, what is the value of a + b? f(x) = {3x^2 - 2x +1, if x < 0 a cos(x) + b, if 0 asked by Mishaka 49. ## Physics A)Two identical resistors are connected in parallel across a 30-V battery, which supplies them with a total power of 7.0 W. While the battery is still connected, one of the resistors is heated so that its resistance doubles. The resistance of the other asked by Kristi 50. ## Science The biochemical conversion of Glucose, C6H12O6, into pyruvic acid, C3H4O3, is an important step in the TCA (Kreb’s) cycle which forms a part of the metabolic breakdown of glucose (to produce energy). C6H12O6 (s) + O2 (g) → 2C3H4O3(l) + 2H2O (l) glucose asked by Tammy 51. ## Algebra The distance required for an emergency stop for a car varies directly as the square of the car’s speed. A car traveling at 50 mph requires 140 feet to stop. What is the stopping distance for a car traveling at 30 mph? What is the stopping distance for a asked by Elena 52. ## precal Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.) 2 cos2 θ − cos θ − 1 = 0 asked by stellar 53. ## precal Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) cos θ = 0.32 asked by stellar 54. ## physics you are traveling in your car at a velocity of 24.0 m/s east when you slam on your brakes. The force of friction on your car tires is 1.80x10^4 N. If the mass of you and your car is 1.50x10^3 kg, how far do you skid before stopping? asked by Anonymous 55. ## Math/Statistics STATISTICS PLEASE HELP!!!!! I am sorry this is jy second time posting, but I really need help. I have tried contacting my teacher and classmates with no luck. Please just steer me in the right direction!: Suppose cars arrive at Burger King's drive-through asked by Jake 56. ## Physics If a 1.00 kg body has an acceleration of 3.69 m/s2 at 75° to the positive direction of the x axis, then what are (a) the x component and (b) the y component of the net force on it, and (c) what is the net force in unit-vector notation? If f = ma can f = asked by Belinda 57. ## physics A cannon fires a shell at an angle of 20º to the horizontal. The shell reaches a range of 436 meters, landing at the same elevation as the starting point. What was the initial velocity of the shell asked by Anonymous 58. ## science A 4kg block is sitting on the floor. (a) How much potential energy does it have? (b) How much kinetic energy does it have? (c) The block is raised to 2m high. How much potential energy does it have? (d) The block is raised to 4m high. How much potential asked by Ali 59. ## math The sum of two numbers is 16 . What is the largest possible product between these numbers asked by Melissa 60. ## Statistics Suppose cars arrive at Burger King's drive-through at the rate of 20 cars every hour between 12:00 noon and 1:00 pm. A random sample of 40 one-hour periods between 12:00 noon and 1:00 pm is selected and has 22.1 as the sample mean number of cars arriving. asked by Jake 61. ## Math What is the difference between a vertical stretch and a vertical shrink? asked by Izzy 62. ## math70 An executive drove from home at an average speed of 30 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 75 mph. The entire distance was 156 mi. The entire trip asked by Helo 63. ## arithmetic round 42.65 nearest dollar asked by Anonymous 64. ## Mathematics The numerator of a fraction is two less than its denominator. When both numerator and denominator are increased by 3, the fraction is increased by 3/20. Find the original fraction. Explain your solution asked by JP 65. ## algebra The product of two consecutive positive even numbers is 840. What are the numbers? (Enter solutions from smallest to largest.) asked by darren 66. ## Science I need help with the experimental design of my project. I am testing to see if the the position (chin height, chest height, over head) of the basketball affects the number of shots that go in the basket. What is the independent variable and what are the asked by Lee 67. ## Economics M/C Hi, I am having difficulty determining the answer for the following question: The market in which the assumption of continuous market-clearing seems to be LEAST applicable is the: a) stock market b) market for wheat c) labour market d) market for federal asked by Anonymous 68. ## Physics Physics Help... Applying Newtons Laws Grade 11? On the surface of the earth a geological hammer has a mass of 1500g. Determine its mass and weight on Mars where g=3.6 m/s^2. asked by Erin 69. ## physics A 4.5 kg object is accelerated from rest to a speed of 39.2 m/s in 76 s. What average force was exerted on the ob- ject during this period of acceleration? Answer in units of N asked by brain 70. ## English/Argument Statement: Five prominent Democratic senators support a new farm bill. Assuming the above statement is true, what conclusions can you draw? From the list below, circle the conclusions that MUST be true, cross out the conclusions that CANNOT be true. If the asked by Sun29nc 71. ## chemistry again If you are given V1=410 ml T1= 27 C= 300 K P1= 740 mm Find V2 in ml at STP When given STP= 273K and 1 atm asked by Bianca 72. ## physics A bomber flies horizontally with a speed of 367 m/s relative to the ground. The altitude of the bomber is 4020 m and the terrain is level. Neglect the effects of air resistance. The acceleration of gravity is 9.8 m/s2 . a) How far from the point vertically asked by Anonymous 73. ## precal Find all solutions of the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) 2 cos θ − 1 = 0 asked by stellar 74. ## precal Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) tan θ = 1 asked by stellar 75. ## Social Studies 9 Which aspects of Napoleons life does H.G wells emphasize. What does the infomation about napoleon and what does it tell you about H.G wells. is the information reliable or relevant in either case ? asked by Stephanie 76. ## Chemistry A solution with pH = 4 has 1. relatively high concentration of OH- 2. relatively low concentration of H3O+ 3. relatively high concentration of H3O+ 4. zero concentration of OH- Some of the answers people are giving me are confusing. I just need to know if asked by nan 77. ## maths find the area of a cardboard wasted if a sector of maximum possible size is cutout from a square card board of size 24cm asked by saravana 78. ## physics a bullet is fired vertically upward with a velocity 220m above the ground . calculate the time it will take the bullet to strike the ground. assuming that its path is the same vertical line throughout (g=100meter per seconds) asked by esor 79. ## Science Which of the following describes the slowest change on earth's surface? A) Gravity pulls an area of wet soil and rock downward in a landslide B) An earthquake releases energy that built up below Earth's surface C) Lava explodes from a volcano on an island asked by Bob 80. ## accounting Suppose the business has total assets worth Rs. 450,000/- and total liabilities of Rs. 800,000/-. Mr. Ali has the personal property of Rs. 200,000/- and Mr. Yasir has the personal property of Rs. 125,000/-. In case the business is liquidated and declared asked by maham 81. ## physics Question Part Points Submissions Used 1 2 3 4 5 0/5 –/5 5/5 0/5 0/5 1/10 0/10 1/10 2/10 2/10 Total 5/25 A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure below. The length of the arc ABC is asked by carlton 82. ## Accounting Sales Revenue:$71,200 Cost of Goods Sold: (a) Gross Profit: $30,000 Operating Expenses: (b) Net Income:$12,100 Find the missing amounts. This is what I got: a) $41,200 b)$17,900 I am pretty sure I am doing this right. But before I move on with my

asked by NeedVerification
83. ## science

1. How much potential energy does a 5kg block have if it is 2m above the ground? 2. What is the mass of an object that has 40J of potential energy and is 10m above the ground? 3. What is the weight of an 8kg object? 4. How much work does it take to lift an

asked by Dave
84. ## physics

An object that has a mass of 36.0 kg is pushed along a horizontal surface with a force of 85.0 N at 30 degrees. If the force of friction is 52.0 N, what is the magnitude of the acceleration of the object?

asked by Anonymous
85. ## french

Bête sans âge Je crie aux gens de 50 ans Que j’en ai ______ Et que j’ai le temps De ___________ De ___________ Et de ______________ Et que si je ne pense qu’a ____________ C’est parce que ________ Que j’en ai assez De parler à __________ Qui

asked by rebecca
86. ## Social Studies 9

Which aspects of Napoleons life does H.G wells emphasize. What does the infomation about napoleon and what does it tell you about H.G wells. is the information reliable or relevant in either case ? PLEASE NO GOOGLE SEARCHES . they don't work for me .

asked by Sarah
87. ## English

FIND 15 EXPRESSIONS OR IDIOMS IN THIS TEXT Devils Lake, ND — WASHINGTON – Federal Emergency Management Agency (FEMA) officials today assured Senator John Hoeven and Congressman Rick Berg that the agency would work with city, county and state officials

asked by Aaron

john bought a bag, pai oh shoes ad a watch for $160 altogethe. the bag cost$15 more than the pair of shoes and the watch cost $20 less than the bag. What was the cost of the bag? asked by nick 89. ## Physics The region of the solar system between Mars and Jupiter contains many asteroids that orbit the Sun. Consider an asteroid in a circular orbit of radius 4.0 1011 m. Find the period of the orbit IN SECONDS!!!??? asked by Anon 90. ## Maths If I have the mean and standard deviation of data how do I work out the percentage of data within 1,2,and 3 standard deviations of the mean? :) any help would be much appreciated thanks asked by Zani 91. ## Pre Calculus Inverse functions find the value If f(x)=1/x, find f^-1 (2) asked by Josh 92. ## Science I want very insightful and well structured note on "Homeostasis" asked by Makinin 93. ## Physics A 10 m long frictionless ramp is inclined at an angle of 30 degress to the horizontal. A boy of mass 57 kg coasts down the incline on a skateboard of mass 3.0 kg. The acceleration due to gravity may be taken as 9.8 m/s^2 and the effects of air resistance asked by Erin 94. ## history advice while studying for this history exam.. I really have no idea what i'm reading.. it's hard for me to comprehend the writings.. can you offer some advice on how to study? asked by Julian 95. ## Calculuate Differentiate 4*(8-3x)^3 asked by Lyric 96. ## Math Write this in function form: 7x+7y+3-3=49 asked by Izzy 97. ## home insurance The lump sum payment surivorss receive from social security to hep pay funeral and burial expenses is : A.$255 B.$785 C.$1,000 D.$2,500 im thinking about 2 answers eaither A or C . what do you think? asked by Ciara 98. ## Science Ms. Sue can you please help me with this assignment? I would really appreciate it. Final Project: Mitigation Strategies and Solutions · Resources: Appendix A, F, and G · Due Date: Day 7 [Individual forum] · Use the topic you chose as an environmental asked by Anonymous 99. ## Physics A car travleing at 30.6 mi/h on a horizontal highway. The acceleration of gravity is 9.8 m/s^2. If the coefficient of friction between the road and tires on a rainy day is .083, what is the minimum distance the car will stop? asked by Anonymous 100. ## History Colossus of Rhodes: Was the structure effective for its' stated purpose? asked by Jack 101. ## physics A car moving with a constant acceleration covers the distance between two points 80 m apart in 8.0 s. Its velocity as it passes the second point is 15 m/s. (a) What was the speed at the first point? (b) What is the constant acceleration? (c) How far behind asked by Ruby 102. ## physics there is a massless rope that is pulled over a frictionless pulley that is suspended high above the ground one end of the rope is tied to a heavy block with a mass of 483 kg the free end is climbed by a person with a mass of 102 kg who starts from rest. If asked by Joe 103. ## physics A 8.2 kg object undergoes an acceleration of 2.5 m/s2. What is the magnitude of the resultant force acting on it? Answer in units of N asked by brain 104. ## Adv algebra The equation x^2+px+q=0, q cannot be equal to 0, has two unequal roots such that the squares of the roots are the same as the two roots. Calculate the product pq. asked by Ricky 105. ## Math Investigations II For what value of k will the system be dependent? x+3y+2z=-4 3x+4y-z=2 3x-y-8z=k I'm confused as to what exactly it's asking for by a dependent system. I know this is a system with infinite solutions, but I don't know how to find that in 3 dimensions. asked by Cody 106. ## physics An Olympic basketball player shoots towards a basket that is 5.64 m horizontally from her and 3.05 m above the floor. The ball leaves her hand 1.71 m above the floor at an angle of 41.0o above the horizontal. What initial speed should she give the ball so asked by Nick 107. ## French can i please have a short summary/biography on Gaspard Ulliel? asked by rebecca 108. ## English/Argument Logic Problem- A&B A. Supply a (B)term that would support the following argument, "18-year olds should be able to drink alcohol legally." Come up with a (B) term and present result as a syllogism. B. Supply a (B)term that will support the following asked by Sun29nc 109. ## English/Argument How do I recognize or Identify fallacies within an argument? Thank you asked by Sun29nc 110. ## Biology Explain how an individual can be a carrier for a oarticular disease yet not have the disase. Is this explanation true for all people who are carriers asked by Kestrel 111. ## critical thinking technical jargon used by people in the same field can be an acceptable used of language. true of false. asked by allie 112. ## Science You have a solution that contains Ag* ions and another that contains Na* ions. How would adding a solution that contains Cl- ions to these solutions enable you to tell which is which? asked by Sheryl 113. ## math did you hear about... asked by jaylah 114. ## home insurance Disability insurance is designed to replace A.damaged property B.loss or damage to property C.money damages awarded in a law suit against D.lost income i got B asked by Ciara 115. ## Chemistry A solution with pH = 4 has 1. relatively high concentration of OH- 2. relatively low concentration of H3O+ 3. relatively high concentration of H3O+ 4. zero concentration of OH- asked by nan 116. ## functions 12 solve (x^3)+(12x^2)+(21x)-(4)=(x^4)-(2x^3)-(13x^2)-(4) the answers are x=-1,-3,7,0 but i need to know how to do it asked by kerry 117. ## math Express each function in standard form f(x)=-3(x-2)^2+5 f(x)=2(x+4)(x-6) asked by Melissa 118. ## math Determine the equation of the inverese of the quadratic function f(x)=x^2-4x+3 asked by Melissa 119. ## Maths if there is a cylindrical ride (radius r) and when it rotates the person feels pinned tot he wall and then the floor drops away. how would i start to find the equation of the angular speed needed to keep the person against the wall???? asked by Sarah 120. ## Maths Calculus Derivatives Find the first derivative for the following functions 1) f(x) = sin(cos^2x) cos(sin^3x) 2) f(x) = ( tan 2x - tan x ) / ( 1 + tan x tan 2x ) 3) f(x) = sin { tan ( sqrt x^3 + 6 ) } 4) f(x) = {sec^2(100x) - tan^2(100x)} / x asked by Yousef 121. ## wRITINg This experience has been more than fulfilling; it has shown me the road to something greater than responsibility, time management and responsibility. Children are the future and we impact the hope of the future today by our showing the many qualities that asked by Rica 122. ## Math An employee has two hourly wage options for positions in a large corporation. One position pays$11.00 plus additional unit rate of $0.50 unit produced. The other pays$7.25 plus a unit rate of \$1.25. W(x)=11+0.5x M(x)=7.25+1.25x I need to find the

asked by Christina
123. ## WRTINgg

Help of a Troublemaker I remember when I was younger; I had an interesting captivation with younger children. The thought of having my own, was like a dream waiting to happen, but of course when I was younger and more mature. These days I look back and

asked by derrica
124. ## social civics

"Explain how each organization works to help farmers."

asked by Anonymous
125. ## statistics

Given the following information about a sample, calculate a z score for a test grade of 91. = 87, s = 4.01

asked by siobhan
126. ## Math c30

Determine the period length of y=3tan 2x I had the answer to be pi , but the correct one is pi/2 How do you get that answer??

asked by don
127. ## physics

Question Part Points Submissions Used 1 2 3 3/3 0/2 0/5 3/10 1/10 1/10 Total 3/10 Consider a conical pendulum with a 90.0 kg bob on a 10.0 m wire making an angle of θ = 3.00° with the vertical. (Consider + to be towards the center of the circular path.)

asked by carlton
128. ## Algebra

The illumination provided by a car’s headlight varies inversely as the square of the distance from the headlight. If a headlight produces 15 footcandles at a distance of 20 feet, what will be the illumination at 40 feet? At 100 feet?

asked by Elena
129. ## science

How much work does it take to raise a 3kg object 5m into the air? (a) What is the potential energy of the object when it is 5m in the air? (b) What does this tell you about the potential energy you get when you do work to lift an object? (c) If you drop

asked by Ali
130. ## math c30

-pi/4 plus 15pi/4 divided by 2=7pi/4 how is the math done regarding the fractions (dividing and multiplying)

asked by don
131. ## Science

What changes occur to the uterus during a female's monthly menstrual cycle? What can be a hypothesis for this question? (Explain) I know you had given me a website before, but I DID A HYPOTHESIS FOR THIS QUESTION NOT THE ANSWER FOR THE QUESTION. `THANKS♥

asked by M.
132. ## physics

A car is connected to a tree by a length of rope tied tightly. A 115 pound woman steps in the middle of the rope causing it to deflect by 15 degrees.

asked by Sandra
133. ## Accounting

I have to write a paper for accounting and I have to write about how it affect my responsibility and how it will affect my future. I need to know how to get started on this.

asked by Charolette
134. ## chemistry

Given 6.00 L of N2 at -25 degrees C. Find Vol in L at 100K

asked by Bianca
135. ## English/Argument

Write the conclusion for the two premises of this syllogism. 1. Either breach of contract is a crime or it is not punishable by the state. 2. Breach of contract is not a crime.

asked by Sun29nc
136. ## Islamic

What is velt

asked by Abdul
137. ## nursing

What are ways you provide education to patients in your work place regarding chromic diseases?

asked by marissa
138. ## algebra II

solve forx. state any restrictions on the variables: (x+3)=g x+3=lt2

asked by sugger
139. ## algebra

Maria has 16 shirts and 3/8th of them  are red so how many shirts are red.?

asked by Marisa
140. ## WRITing

please tell me if Im off topic “The price of greatness is responsibility” – Winston Churchill. Responsibility is a duty or obligation to satisfactorily perform a task that one must complete and should be able to accept the consequences if failed. It

asked by Rica
141. ## Science

In an acidic solution, why is the OH- concentration lower than it is in pure water?

asked by Sheryl
142. ## Science

You are given two solids that look nearly alike, one of which is held together by ionic bonds and the other by van der Waals bonds. How could you tell them apart?

asked by Sheryl
143. ## american gov't

Whenever Congress has a perceived need for ongoing control of an economic activity,it has tended to create a

asked by Anonymous
144. ## Social Studies 9

Do you think Napoleon brayed the french revolution when he became emperor. imagine that marat, roberspierre and danton bring napoleon to trail after his defeat at waterloo. make up a list of changes these leaders of the french revoulrion might bring

asked by Sarah
145. ## Calculus

Let f be defined as follows, where a does not = 0, f(x) = {(x^2 - 2a + a^2) / (x-a), if x does not = a 5, if x = a Which of the following are true about f? I. lim f(x) exists as x approaches a II. f(a) exists III. f(x) is continuous at x = a. A. None B. I,

asked by Mishaka
146. ## chemistry

The equivalent weights of X and Y are _________ g/equiv. H+ and g/equiv. –OH, respectively, for the following reaction: Z (Note: Report your answer with 4 significant figures.) X Y Z Answer #1 Answer #2 benzoic acid calcium hydroxide 2 C6H5COOH + Ca(OH)2

asked by Evani
147. ## English

Can you please check these sentences? Thank you. When I was "little" (young is better) could play the guitar quite well. Can you say "yesterday evening" in British English (instead of last evening?) He insisted that he hedn't broken the vase. He insisted

asked by Henry2
148. ## math

The half-life of 234U, uranium-234, is 2.52 105 yr. If 97.4% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed?

asked by lady
149. ## chemistry

why 1/t represent k in iodine clock reaction

asked by chan
150. ## soc313: implication of medical issues

Discuss psychosocial issues in Huntington's disease. Some of the issues may be from the following list. Use at least 3 of the following or 3 of your own, and provide a resource for your findings. Respond to at least one other student in an evaluative or

asked by sharon
151. ## reading strategies

reading titles and headings,and trying to get an overview of what lies ahead in reading passageis called

asked by Ali
152. ## Maths Calculus

Find the first derivative for the following functions 1) x^3 . sqrt( 3x^5 + 1 ) . sin (7x)

asked by Yousef
153. ## Math

Solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.) 4x^2 = 7x + 2

asked by darren
154. ## eng

ideas for personal odyssey proj

asked by anonymouse
155. ## Spanish

If I wanted to say "Those butterflies are the prettiest of all." would I say this sentence or should the "esas" be "estas"? Esas mariposas son las más bonitas de todas las mariposas

asked by Sammy
156. ## Science

I want very insightful and well structured note on "Homeostasis"

asked by Makinin
157. ## English

Could you check if the following alternatives are possible, please? Thank you. 1) I didn't know your address but I was able/managed to find you. (succeeded in finding you??? ) 2)When I was young, I could/was able to (NO: managed to/succeeded in ) 3) I

asked by Henry2
158. ## Question

I need to know in what city in the us is there the greatest pets to people ratio? It would also help me if you gave the west site or news article information

asked by Samantha
159. ## computer science

what is a ram

asked by anonymous
160. ## Math

Evaluate the function. p(x)=2/5x+1/2, when x is 3. Those are fractions, by the way..

asked by Izzy
161. ## history

I don't understand what is meant when a question asks you for the "term" Historical significance. for example:john maynard keynes. I know everything about him and his economic ideas but, if i was asked to write a short paragraph of his historical

asked by allie
162. ## Science

What do you mean by the statement "waves transport energy, not water?". How do waves transport energy without moving water? What is the function of the energy transported by waves? When there is a term "displacing molecules", what does it mean? Explain it

asked by Roderick
163. ## health

Thinking in terms of the administrator and third-party payer perspectives, answer the following: What do you feel are the biggest weaknesses of the health care plan, and why?

asked by Sally
164. ## statistics

In a clinic, 62% of patients are female. Fifteen patients are selected at random with replacement. What is the probability that at least 1 of the fifteen patients is male?

asked by Sarah
165. ## Math

Fined the derivative of 10^-4*90/10^-4+6.

asked by Mae
166. ## Science

Can someone please help me with this assignment. Final Project: Mitigation Strategies and Solutions · Resources: Appendix A, F, and G · Due Date: Day 7 [Individual forum] · Use the topic you chose as an environmental researcher for the Week Nine

asked by Heather
167. ## math

How to complete the square of an equation?

asked by Nneka
168. ## Abnormal Psychology

Please check my answers. 1). Briefly describe each of the major theoretical perspectives in maladaptive behavior. (MY Answer) a. Biological= genetic, hereditary factors b. Psychodynamic=Freudian and psychosocial influences c. Behavioral=Social learning

asked by Sharon
169. ## MATH HELP HELP HELP HELP HELP

Suppose that a set S is bounded above. Let r be any real number and t be any positive real number. Let T = {r + tx : x e S}. Show that sup T = r + t sup S regards

asked by MATH HELP HELPPP
170. ## U.S History

1) what was the purpose of the first continental congress? 2) how did the events of 1776 move the colonists closer to self-government? PPPPPLLLLLLEEEEEAAAAASSSSSEEEEE HHHHEEEELLLLPPPPPPP MMMMMEEEEEE?????!!!!!

asked by Jackson
171. ## Algebra

Suppose f(x)=2x-5 and g(x)=|-3x-1|.Find each value. f(1)+g(2) -Would the answer be f(1)+g(2)= 4? Thanks

asked by Shadow
172. ## math/chem

what is dimensional analysis

asked by anonymous
173. ## math c30 trig

Determine the period length of y= 2/3 sin (3x/2 ) I had 3pi/2 but the correct answer is 4pi/3 how do you get that???

asked by don
174. ## statistics

In a clinic, 62% of patients are female. Fifteen patients are selected at random with replacement. What is the probability that at least 1 of the fifteen patients is male?

asked by Sarah
175. ## homeinsurance

Expensive jewelry is usually insured by a (n) A.umbrella policy B.replacment cost rider C.policy floater D.named-perilspolicy. I got C .

asked by Ciara
176. ## Bible

I want to retract reword my question. Five infancy narrative events are mysteries of the rosary. What are they called? Second, which events are they?

asked by Lynn
177. ## math

in a recent poll of 1,800 adults only 25% of the population approves of the president's performance. how many total people approve and how many total people disapprove of the president's performance? please help!

asked by lisa
178. ## Science

What changes occur to the uterus during a female's monthly menstrual cycle? What can be a hypothesis for this question? (Explain)

asked by M.
179. ## Egypt

Which egyptian god is the 'creator of the arts'? Please help! :-)

asked by Anonymous