Questions Asked on
March 9, 2013

  1. Chemistry

    Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.300 M phosphoric acid solution. pKa1: 2.16 pKa2: 7.21 pKa3: 12.32 Hint: Convert

    asked by Paula
  2. Chemistry

    A 0.464 gram sample of a metal, M, reacts completely with sulfuric acid according to: M(s) +H2SO4(aq)=MSO4(aq)+H2(g) A volume of 211 mL of hydrogen is collected over water; the water level in the collecting vessel is the same as the outside level.

    asked by Raul
  3. Teacher Aide

    Which of the following factors contributes to the importance of teacher aides in schools today? a A decrease in the population b The decline of women in the workforce c The financial crisis in the school d Reduced teacher salaries

    asked by Jr
  4. math

    At a hockey game, a vender sold a combined total of 192 sodas and hot dogs. The number of sodas sold was two times the number of hot dogs sold. Find the number of sodas and the number of hot dogs sold.

    asked by Anonymous
  5. physics

    You've taken your neighbor's young child to the carnival to ride the rides. She wants to ride The Rocket. Eight rocket-shaped cars hang by chains from the outside edge of a large steel disk. A vertical axle through the center of the ride turns the disk,

    asked by Anonymous
  6. math

    Power companies typically bill customers based on the number of kilowatt-hours used during a single billing period. A kilowatt is a measure of how much power (energy) a customer is using, while a kilowatt-hour is one kilowatt of power being used for one

    asked by HELLO
  7. Physics

    A 71.1 kg man steps out a window and falls (from rest) 1.24 m to a sidewalk. What is his speed just before his feet strike the pavement? If the man falls with his knees and ankles locked, the only cushion for his fall is a 0.500 cm give in the pads of his

    asked by Anonymous
  8. chemistry

    Sn (s) + 2Cl2(g) --> SnCl4(l).Sn(s) + Cl2(g) --> Sn Cl2(l) DH = -186.2 kJSnCl2(s) + Cl2(g) --> SnCl4(l) DH = -325.1 kJWhat is the change in enthalpy?

    asked by Sammantha
  9. physics

    A toy train rolls around a horizontal 1.0-{\rm m}-diameter track. The coefficient of rolling friction is 0.15. What is the magnitude of the train's angular acceleration after it is released?

    asked by Anonymous
  10. Finance Math

    Jane made a down payment of 1500 dollars toward the purchase of a car. To pay the balance of the purchase price, she has secured a loan from her bank at the nominal rate of 5.8 percent per year compounded monthly. Under the terms of her finance agreement,

    asked by Camille
  11. math

    Q: Corbin is playing a board game that requires rolling two number cubes to move a game piece. He needs to roll a sum of six on his next term and then a sum of ten to land on to the next two bonus spaces. what is the probability that Corbin will roll a sum

    asked by dingbat
  12. Hamilton

    Julia studied math 3 1/3 hours during the 4 days before her last test. what was the average amount of time she studied each day

    asked by Sylvia
  13. Life orientation

    In 15 line critically discuss 5 way which the human problem impact on the community for teenage pregnancy

    asked by Rose
  14. chemistry

    Is CF4 polar or nonpolar?

    asked by landa
  15. Chemistry

    NH3 is a weak base (Kb = 1.8 × 10–5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.050 M in NH4Cl?

    asked by Jefferson
  16. Physics

    A pellet gun is fired straight downward from the edge of a cliff that is 15m above the ground. The pellet strikes the ground with a speed of 27 m/s. How long does it take for the pellet to reach the ground with an initial velocity of 5.9 m/s.

    asked by Borus
  17. Math

    Write two unit rates relating meters and kilometers.

    asked by Sue
  18. algebra

    Triangles ABC and DEF are similar. Find the area of triangle ABC. Round your answer to the nearest tenth. the answer should be __________m^2 triangle abc has a 12m. triangle def has 12m and 18m.

    asked by sally
  19. Physics

    A 0.157kg ball is thrown straight up from 1.81m above the ground. Its initial vertical speed is 10.40m/s. A short time later, it hits the ground. Calculate the total work done by the force of gravity during that time.

    asked by Anonymous
  20. Physics ~please help me~

    1.) Two people of the same mass climb the same flight of stairs. The first person climbs the stairs in 25 s; the second person does so in 35 s. a) Which person does more work?Explain b) Which person produces more power?Explain 2.) Lee pushes a 20 kg mass

    asked by Isis
  21. Chemistry

    In a 1.0× 10–4 M solution of HClO(aq), identify the relative molar amounts of these species. (most to least) H2O HClO H3O OH- OCl-

    asked by Paula
  22. Accounting - Struggling answering this.

    Updraft Systems, Inc., makes paragliders for sale through specialty sporting goods stores. The company has a standard paraglider model, but also makes custom-designed paragliders. Management has designed an activity-based costing system with the following

    asked by Anton
  23. math

    5. Bert is planning to open a savings account that earns 1.6% simple interest yearly. He wants to earn exactly $192 in interest after 2 years. How much money should he deposit?

    asked by jay
  24. physics

    Four masses are arranged as shown. They are connected by rigid, massless rods of lengths 0.50 m and d = 0.73 m. What torque must be applied to cause an angular acceleration of 0.63 rad/s2 about the axis shown? 4 kg 3 kg 5 kg 2 kg

    asked by crixus
  25. Physics

    A stationary bomb of 10kg mass explodes into 3 fragments. two of these parts having mass 4kg and 2kg,fly apart perpendicular to each other with a velocity of 2ms-1 and 3ms-1.find magnitude and direction of 3rd part.

    asked by Kinjal
  26. system development

    Terrier News Situation: Terrier News is a monthly newsletter devoted to various breeds of terriers and topivs of interest to terrier owners and breeders. Annie West, the editor and publisher, asked you to help her design a systems to enter and manage the

    asked by cindy
  27. statistics

    a towns average snowfall is 33 inches per year with a standard deviation of 11 inches. how many standard deviations from the mean is a snowfall of 66 inches

    asked by marie
  28. Physics

    A stationary bomb of 10kg mass explodes into 3 fragments. two of these parts having mass 4kg and 2kg,fly apart perpendicular to each other with a velocity of 2ms-1 and 3ms-1.find magnitude and direction of 3rd part.

    asked by Kinjal
  29. geometry

    A right pentagonal prism is 10 cm high. If the area of each pentagonal base is 32 cm squared and the perimeter is 20 cm, what are the lateral and total surface areas of the prism? I tried doing this using the formula shown in my book, but it came out

    asked by tmouery
  30. Chemistry

    How many grams of Na3PO4 are needed to produce 250mL solution that has an Na concentration of 1.04M?

    asked by sally
  31. physics

    a uniform rod 100cm long and weighing 50N is supported on a horizontal position on a fulcrum which weights of 80N and 100N suspended on its ends. compute the position of the fulcrum

    asked by nicolyan
  32. Please help analytic geometry

    A line with slope 6 bisects the area of a unit square with vertices (1,0), (0,0) , (1,1), and (0,1). What is the y-intercept of this line? I tried putting one point where the line intersects the square as (y,1), and the other as (x,0), and the y intercept

    asked by Knights
  33. physics

    A roller-coaster car has a mass of 1100 kg when fully loaded with passengers. As the car passes over the top of a circular hill of radius 20 m, its speed is not changing. (a) At the top of the hill, what is the normal force (using the negative sign for the

    asked by physics
  34. chemistry

    How many grams of Na2CO3 should be mixed with 50.00g of NaHCO3 to produce 2000mL of buffer with pH=10?

    asked by Ashley
  35. algebra

    The sum of two numbers is 57 and the difference is 23 . What are the numbers?

    asked by Anonymous
  36. math

    Application Giovanni is flying his Cessna airplane on a heading as shown. His instrument panel shows an air speed of 130 mi/h. (Air speed is the speed in still air without wind.) However, there is a 20 mi/h crosswind. What is the resulting speed of the

    asked by y
  37. Physics

    A traffic light is suspended midway across a 60 meter wide street by a cable that is attached to vertical poles on either side of the street. When the traffic light is hung in the middle the cable sags 30 cm. If the light is 1500 kg what should be the

    asked by Eduardo
  38. calculus

    Use the Euler Method with a step size of 0.2 to estimate f(3) where f′(x)=2x−7 and f(2)=4. Your answer should be correct to two decimal places.

    asked by lisa
  39. Algebra

    Parking in a student parking lot costs 2.00 for the first half hour and $1.75 for each hour thereafter. A partial hour is charged the same as a full hour. What is the longest time a student can park for $9.00? Show your work.

    asked by Ruth
  40. Geometry Inscribed

    line BC is tangent to circle A at B and to circle D at C (not drawn to scale) AB=11, BC=23,and DC=2. find AD to the nearest tenth. Image: i.imgur(dot)com/f4ThxTu.jpg

    asked by Rose
  41. chemistry pH

    calculate [H^+] and the pH of 0.025M of HNO3

    asked by holly
  42. Algebra 2...

    On isometric dot paper, graph the system of equations at right. What shape is their intersection? Use color to show the intersection clearly on your graph. 10x + 6y + 5z = 30 6x + 15y + 5z = 30 Is the intersection where the two planes OVERLAP?

    asked by Anonymous
  43. MA112

    How many four-digit numbers abcd exist such that a is even, b is divisible by 5, c is prime, and d is odd?

    asked by Enis
  44. Mathematics

    If sin23=a,express cos 113 in terms of a.

    asked by Trigonometri
  45. Mathematics of Finance

    Richard borrowed 170000 dollars from his bank to help finance the purchase of a house. The bank charges interest a rate of 8.9 percent per year compounded monthly. Richard has agreed to repay the loan in equal monthly installments over 35 years. a) How

    asked by Lee
  46. Math

    Sum the first two odd numbers, then the first three, the first four, and so on. From these observations could you guess the sum of the first 100 odd numbers? So the first two odd numbers are

    asked by Dawn
  47. Physics

    a boat crosses a 2 km wide river by starting out at the south shore and heading directly for the north shore if the river flows at 0.8 m/s and the boat can go at 1.4 m/s in still water, where on the opposite shore will the boat land?

    asked by Eduardo
  48. Physics

    A boat sets off perpendicular to the bank, to cross a river width of 250m. The speed of the boat in still water is 3.20ms-1, however there is a current downstream at 1.20ms-1, which puss the boat sideways. a) Find the resultant velocity of the boat. b)

    asked by Mariya
  49. physics

    The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. As shown is the figure, a polar bear climbs onto a piece of ice, which has a volume of 5.75 m3, and is floating in sea water. a) What is the mass of the piece of ice? b) What is

    asked by Chris
  50. please help analytical chemistry

    what is the activity coefficient of SO4^2- when the ionic strength of a solution is .1?

    asked by holly
  51. Budgeting

    A quaint but well-established coffee shop, the Hot New Café, wants to build a new café for increased capacity. It’s expected sales are $800,000 for the first 5 years. Direct costs including labor and materials will be 50% of sales. Indirect costs are

    asked by Shannon
  52. math

    which of the followng is a rational number a.2 square root 3 b. 2 pie c.3.14444 d.0.123456 how do you figure this out explanation

    asked by Anonymous
  53. science

    I don't understand how to do this problem because i don't see a precipitate. If you could show your work on the problem that would be great so i can follow along! Identify the spectator ion(s) in the reaction Zn(OH)2+ H2SO4→ZnSO4+ 2H2O in aqueous

    asked by Agnes
  54. OOP(netbeans)

    Write a program that accepts a person’s weight and displays the number of calories the person needs in one day. A person needs 19 calories per pound of body weight, so the formula expressed in Java is Calories = bodyweight * 19;

    asked by kchik
  55. ENGLISH/MATH/SCIENCE HELP!

    Is there any websites for teens to read short stories (or long), then you answer ONLY multiple choice questions, grade you, and to have a profile or something to see all of your grades if your making progress each time (to see if your improving). I want to

    asked by Laruen
  56. Chem

    how many grams of KMnO4 should be weighed out to give 0.100 mole?

    asked by Jessica
  57. Math

    The outstanding balance on Bill's credit card account is 3690 dollars. The bank issuing the credit card is charging 21 percent of interest per year compounded monthly. If Bill decides to pay off his balance in equal monthly installments at the end of each

    asked by Lee
  58. english

    The most obvious difference between online learning and traditional is: A. ease of learning. B. lack of face-to-face interaction. C. anonymity. D. quality of learning. is it D

    asked by Amy
  59. Geometry

    ABCDE is a regular pentagon. FAD is an equilateral triangle, such that points F and E are on the same side of line AD. What is the measure (in degrees) of \angle FAB?

    asked by John
  60. science

    I don't understand how to do this problem because i don't see a precipitate. If you could show your work on the problem that would be great so i can follow along! Identify the spectator ion(s) in the reaction Zn(OH)2+ H2SO4→ZnSO4+ 2H2O in aqueous

    asked by Agnes
  61. English

    Write a 350-word debate paper in which you discuss the benefits and drawbacks associated with group debates.

    asked by Jamie Melching
  62. calculus

    Use a linear approximation of f(x)=log(x) at x=1 to approximate log(3/4). Express your answer as an exact fraction; remember that log denotes the natural log.

    asked by lisa
  63. calculus

    Use a linear approximation of f(x)=^3√x at x=8 to approximate ^3√7. Express your answer as an exact fraction.

    asked by lisa
  64. Biomechanics

    A hammer thrower is trying a new throw by adjusting the arm length to increase angular velocity technique1 angular velocity of15.4rad/ s with the hammer being 139.8 cm from the shoulder joint in technique2 they rotate with an angular velocity of 13.9 rad/s

    asked by Vanitha
  65. lang. Arts

    Which sentence contains a prepositional phrase? A.The grasshopper jumped high. B.The criminal held up the gas station. C.The store is closed. D.Mikie drove to the store. Is it B?

    asked by Cassie
  66. Biomechanics

    A cyclist completes 3.0 revolutions in 1.59s what is the angular velocity?

    asked by Vanitha
  67. Lang. Arts

    Which sentence contains a prepositional phrase? A.The grasshopper jumped high. B.The criminal held up the gas station. C.The store is closed. D.Mikie drove to the store. I think it is A?

    asked by Cassie
  68. Please help with graphing in geometry

    Find the largest real number x for which there exists a real number y such that x^2+y^2 = 2x+2y . I think it is a circle, but how am i supposed to figure this out??

    asked by Knights
  69. Lang. Arts

    In this article, many kids are quoted on their opinions about popularity. They talk about what in-crowds are like. One middle school student admits, “Lately, I have been feeling so unhip.” Which of the following is a direct quotation? A.“many middle

    asked by Cassie
  70. edu

    Which of these scenarios best describes a nuclear family? A) Jeremiah is growing up within a cluster of adults and children who maintain their own living quarters but come together for work and meals. Child-rearing is a shared responsibility. B) The

    asked by ray
  71. calculus

    Let f(x)=e^(x2). By the Mean Value Theorem, there exists a point c such that f′(c)=f(6)−f(4)6−4 with c between 4 and 6. Approximate c to within two decimal places; we're asking you to approximate c, because you can't "solve" for c.

    asked by lisa
  72. math

    which equation represents a line with slope -2 and passes through(-1,5)? how do you do this?

    asked by Anonymous
  73. Physics

    a boat crosses a 2 km wide river by starting out at the south shore and heading directly for the north shore if the river flows at 0.8 m/s and the boat can go at 1.4 m/s in still water, where on the opposite shore will the boat land?

    asked by Eduardo
  74. chemistry

    the molar mass of NaOH is 40g/mol, how many grams ofNaOH are required to yield 0.65 mol?

    asked by Lina
  75. Biomechanics

    During the support phase of walking the absolute angle of the thigh has the following angular velocities frame 38 0.6167s 1.033rad/s frame 39 0.6333s 1.511rad/s 40 frame 0.6500s 1.882rad/s calculate the angular acceleration at frame 40 from frame 38

    asked by Vanitha
  76. Skills for the effective Teacher Aide

    Has anyone taking this course, need help with this question. According to the SMCR model, problems in communication can arise when the speaker fails to do a maintain eye contact with the receiver b speak on the level of the receiver c have outside interest

    asked by Cyndi
  77. Lang. Arts

    What evidence from the article best supports the article’s main idea: that middle school students should concentrate on a few good relationships and not worry about being popular? A>“[You] need to see that liking [yourself] is more important than being

    asked by Cassie
  78. Lang. Arts

    4. Identify the appositive phrase in the following sentence. Mrs. Talavera, an eighth grade teacher at Rosewood Middle School, led the community meeting about childhood obesity. A.Mrs. Talavera B.an eighth grade teacher at Rosewood Middle School C.led the

    asked by Cassie
  79. Algebra

    In 1980 median family income was about $18,000 and in 2000 it was 40,000. (a) Find slope of line passing through points (1980, 18,000) and (2000, 40,000) (b) Interperate slope as a rate of change (c) If the trend continues, estimate the median family

    asked by Ruth
  80. Physics

    If the spring is compressed a distance of 0.144 m and the gun fired vertically as shown, the gun can launch a 18.5g projectile from rest to a maximum height of 19.5 m above the starting point of the projectile. Neglecting all resistive forces, determine

    asked by Anonymous
  81. Physics

    A 3.23 kg ball is attached to a ceiling by a 1.31 m long string. The height of the room is 5.75 m. What is the gravitational potential energy of the ball relative to the ceiling? What is the gravitational potential energy of the ball relative to the floor?

    asked by Anonymous
  82. chemistry

    what are structural examples of an aldehyde?

    asked by landa
  83. To Laura/Joseph

    I have taken care of the answer to the SO3 ==> SO2 + O2 equilibrium problem that we worked on last night about midnight. You should obtain the correct answer now.

    asked by DrBob222
  84. Math-geometry

    . If a spherical Triangle on Earth has an excess of 30 degrees, find the area of this spherical triangle measured in square miles. b. If a spherical triangle on the moon has an excess of 30 degrees, find the area of this spherical triangle in sqare miles.

    asked by PLEASE HELP
  85. help ??????????????????

    no table and no diagram for this question a)What speed would water have to drop below to deposit a 250μm diameter grain of sediment?......... answer to unit ms^-1 b)What speed would water have to drop below to deposit a 500μm diameter grain of

    asked by sam
  86. chemistry

    name of the following compound: ch2-ch3 / ch3-ch2-ch-ch2-ch2-ch=ch-ch3

    asked by erick
  87. organic chem

    Hydrolysis: Draw the products of... N-ethyl-N-phenyl-2,6, dimethyl benzamide

    asked by Anonymous
  88. Geometry

    Given a 100 by 100 square grid, what is the most number of 1 by 51 rectangles that we can cut out of it?

    asked by John
  89. SCIENCE

    when a diorite partially melts, which element(1)............ decreases in the melt as a(2).......... magma forms. I have few options to choose from a)iron b)andesite c)rhyolite d)potassium f)basalt

    asked by john
  90. Physics

    A ball of 0.5kg mass hits a wall at an angle of 30° and is then reflected making an angle of 90° with its original direction. if the duration of contact between the ball and the wall is 0.1s,calculate the force exerted on the wall. the initial and final

    asked by Kinjal
  91. minning science

    calculate the pH at 25 degrees of 0.080 mol dm^-3 HNO3

    asked by roxanne
  92. Narrative story

    Please help me to write a short narrative story based on non-traditional hero.

    asked by Jeconiah
  93. Astronomy - Physics

    Now let us consider the length of time that the Sun is visible. Wait until the planet is at the summer solstice (12:00am). a) How many hours of daylight are there on the summer solstice with the inclination at 45 degrees? To estimate the length of day,

    asked by Amy
  94. Chemistry

    1.55 g of penatanol 250ml water Heat from 10 to 38 degrees Find hear of combustion

    asked by Bee
  95. Algebra

    The cost of driving a car includes both fixed ans mileage costs. Assume that it costs $152.20 per month for insurance and car payments ans $0.22 per mile for gasoline oil and routine maintenance. (a) Find value m and b so that y-mx=b modeks the monthly

    asked by Ruth
  96. english

    This technology allows the online learner to connect to the online school in order to access the courses. A. Multimedia B. Internet C. Operating system D. Browser is it B

    asked by Amy
  97. Physics

    A car with engine trouble slides 85 meters up along a 14 degrees ramp before coming to a stop. If the coefficient of friction between the tires and the road is 0.9, what was the velocity of the car at the bottom of the ramp? I get 32.43 meters / second is

    asked by Eduardo
  98. English

    I am not sure if I still understand. It's very stilted. It's also missing a hyphen The color-coded table of contents will provide an easy access search for instructions.

    asked by Bernie B
  99. language arts

    In the following questions would you use who or whom. Our grandfather,( )is now 65, competed on thh gymnastics team. No one ( )hss studied gymnastics would say that.

    asked by jase
  100. Math

    One-third of Derick's age two years ago is equal to a quarter of his age four years from now. How old is he now? Please provide the following: -Representation -Equation -Solution -Answer -Checking

    asked by RR
  101. MEchanics M-1 (Velovity time graphs)

    A dragonfly, at rest on a bullrush, decides to fly to a second bullrush 18 m away. It accelerates uniformly to a speed of. 5 m s-1, then immediately decelerates uniformly to rest on the second bulrish. Howlong the journey took?

    asked by Tony
  102. math

    find the value of x 8-2x=1 and 1/5 how do you solve it, can you explain and then give me examples to try on my own thnx.

    asked by Anonymous
  103. science help?

    no table and no diagram for this question a)What speed would water have to drop below to deposit a 250μm diameter grain of sediment?......... answer to unit ms^-1 b)What speed would water have to drop below to deposit a 500μm diameter grain of

    asked by sam
  104. Finance

    You have an invoice for a major expenditure due in 5 years for $82,000 and the annual interest rate of 5%. How much do you need now to pay for this expenditure?

    asked by Sharon
  105. Teacher Aide

    Which statementis true regarding the structure of the school system in the U.S. a its centralized under the Dept of Education b It's decentralized c It's controlled by the teacher's and their unions d It's managed by the state

    asked by Amy
  106. English

    You should mark the blank in the smile emoticon column if you like the activity. If you don't like an activity, you should check the box in the sad emoticon column. By doing that you should complete the table on the page. After you finish completing the

    asked by rfvv
  107. Critical Points

    find values for a, b, and c so that the function f(x) = x^3 + ax^2 + bx+ c has a critical point at (1,5) and an inflection point at (2,3). I got a as -6, but I don't know what b and c are. For b and c I just have b + c= 10. I do not know how to proceed

    asked by Mary
  108. College Algebra

    Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions. 2x2 = -2 -5 Thank you

    asked by Sally
  109. chemistry

    find the concentration of Pb^2+ in equilibrium with PbBr_2_ and 0.10M Br^-

    asked by holly
  110. chemistry

    Find the concentration of Ag^+ in a saturated solution of AgBrO_3_ that also contains 0.02M LiNO_3_, .02M KClO_4_ and .01M NaF

    asked by holly
  111. Algebra

    area of a triangle with a base of 1 4/5 yards, and a height of 5/7 yards.

    asked by Ruth
  112. Biomechanics

    A golfer at the tee swings their driver and completes a downswing in 0.27s through a range of 196.1degree. What is the average angular velocity of the club head

    asked by Vanitha
  113. Astronomy - Physics

    Now, wait until the planet is at the winter solstice (12:00am). a) How many hours of daylight are there on the winter solstice with the inclination at 45 degrees? Use the same criteria for the length of day that you used for the previous question.

    asked by Amy
  114. grammar

    So I am writing my paper and I am confused I know you use fewer when you have something countable like items. and less when its not a countable things. For my example would I say that 5% concentration of coffee had less of an effect of fewer effects than a

    asked by renee
  115. civics

    Hi, I'm really confused. I have to explain all of the major provisions of the bill of rights. But what does it mean by "provisions"? Does the question just mean to explain each of the 10 amendments in the bill of rights?

    asked by Anonymous
  116. General English Part 11

    Describe how the poem is structured, or arranged in lines and stanzas.

    asked by Shay
  117. 5th grade math (word problems)

    I got these problems wrong in class. but, think i have the right answer now. Can you check? 1. Jim's mother made pizzas for his birthday. SHe sliced the pizzas into 50 slices. She served Jeff and his 7 guests the same number of slices and she ate the rest.

    asked by Alex
  118. geometry

    How many square inches are in the lateral surface area and total surface area of an aluminum can with 2 1/2 in. diameter and 4 3/4 in. height? I've worked on this until I'm crossed-eyed and it's not coming out right!

    asked by tmouery
  119. algebra

    solve A)p(x)= x(x+2)(x-4) b)p(x)=(x+2)^3(x-1)

    asked by zachary
  120. Maths B

    Andrew got 68 for both English and Maths. The mean for english was 52 and the mean for Maths was 55. The standard deviations were 10 and 8 respectively. Determine the subject in which andrew did better

    asked by Will
  121. Photography help

    Im sorry i posted this here, but i really need help! I need a free app for ( ipad 2 ) that can pause while making the video,,.. So i can edit.. :) please and thank youu

    asked by Mia
  122. chemistry

    How many electrons in a cesium atom can have the quantum numbers of n = 3 and ml = -1

    asked by patrick
  123. math

    Einsteins famous formula E=mc^2 relates energy E,mass m and the speed of light c. solve the formula for c.

    asked by lisa
  124. Teacher Aide

    A common characteristics of regional educational agencies is that they a don't hire aides b provide many services that individual school districts couldn't afford c serve all of the school districts in a state d are located in Eastern states

    asked by Missy
  125. Algebra

    six times a number minus twice the same number.

    asked by Ruth
  126. algebra

    Last semester, a certain professor gave 11 As out of 226 grades. If one of the professor's students from last semester were selected randomly, what is the probability that student received an A? (Assume that each student receives one grade.)

    asked by Anonymous
  127. Science need help

    all but one of the following statement about the melting and crystallization of magmas is correct.identify the one statement that is incorrect. 1)the presence of water decreases the melting temperature of magma. 2)the upper part of magma in a magma chamber

    asked by centya
  128. Account

    Updraft Systems, Inc., makes paragliders for sale through specialty sporting goods stores. The company has a standard paraglider model, but also makes custom-designed paragliders. Management has designed an activity-based costing system with the following

    asked by Anton
  129. science help?

    a)What speed would water have to drop below to deposit a 250μm diameter grain of sediment?................ms^-1 b)What speed would water have to drop below to deposit a 500μm diameter grain of sediment?................ms^-1

    asked by sam
  130. Astronomy - Physics

    Finally, we will look at a system that is in an orbit comparable to the Earth to see how the angle that the light strikes the surface and the length of day contribute to the total amount of energy that we receive from the Sun at the two solstices. Recall

    asked by Amy
  131. Life orientation

    5 practise of contravention of basic condition of employment act

    asked by Maine refilwe
  132. English

    A key to the student’s ability to apply strategies so that school requirements, assignments, and exams are met in a timely fashion is: A. critical thinking. B. time management. C. self-motivation. D. communication. is it A

    asked by Amy
  133. English

    Is there anything wrong with this sentence? The color-coded table of contents will provide an easy access search for instructions.

    asked by Bernie B
  134. Math-geometry

    If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180 about the z axis and +90 about the x axis, how many dots does each face have after the rotation?

    asked by PLEASE HELP
  135. Math-geometry

    If a dice has 3 on the top, right back 6, right front 2, bottom 4, left front 1, left back 5 and is rotated by +180 about the z axis and +90 about the x axis, how many dots does each face have after the rotation?

    asked by PLEASE HELP
  136. Absolute Extrema

    Find the minimum and maximum values of the function f(x)= 2/3 sin pix on the interval [1,2] (domain). I got (1.5, -2/3) as the minimum and no maximum on the interval. Is it correct? Thank you.

    asked by Mary
  137. algebra

    p(X)= X(X+2)(X-4) P(X)=(X+2)^3(X-1)

    asked by zachary
  138. science

    how do i find the area for light?

    asked by Benji
  139. Humanities

    I need some suggestions of a 20th-century figure whose work or artistic contributions can be classified in both the Age of Modernism and the Age of Pluralism for a paper I am writing.

    asked by Mr. Need Help
  140. chemistry

    find the concentrations of Ca^2+ and F^- in a saturated solution of CaF_2_

    asked by holly
  141. math

    describe the transformation of y=8^x+2 from the graph of y=8^x then state the asymptote and domain and range.

    asked by lisa
  142. Math

    5/8+3\4-7\12 Simplify

    asked by Ashrith.N Kashyap
  143. Biomechanics

    A diver is trying a new more and is attempting to increase his angular acceleration in order to increase the angular displacement and thus produce more rotations from a standing start on the board the diver accelerates at 950 degree/s/s.what is the angular

    asked by Vanitha
  144. maths

    Solve for m:E=mgh+1\2mu

    asked by David
  145. math

    the angle of a quadrilateral are in the ratio 4:5:3:8. find the measure of each angle

    asked by mayank
  146. Minimum on a Closed Interval

    What is the minimum value of the function g(x)= 1/x * sin (pi *x) on the interval [1,2]? I got -2/3. Is this right? thanks.

    asked by Mary
  147. Math

    3 times the square root of 4/9

    asked by Roger