Questions Asked on
March 7, 2013

  1. Physics

    A 50.0g ball of clay traveling east at 3.00 m/s collides and sticks together with a 50.0g ball of clay traveling north at 3.50m/s. What is the speed and direction of the resulting ball of clay?

    asked by Jenny
  2. Cal 1

    Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answers to three decimal places.) (1 + 2x)^1/4 ≈ 1 + 1/2x

    asked by Dee
  3. chemistry

    copper compounds such as copper (II) sulfate are toxic. before disposal, these compounds must be treated to reduce their toxicity. describe how to use steel wool to remove the Cu 2+ ions from an aqueous solution of copper (II) sulfate

    asked by Josh
  4. Chemistry

    What will happen if a small amount of hydrochloric acid is added to a 0.1 M solution of HF? A) The percent ionization of HF will increase. B) The percent ionization of HF will decrease. C) The percent ionization of HF will remain unchanged. D) Ka for HF

    asked by Robby
  5. Algebra

    Find the balance in the account, 4,000 principal earning 6% compounded annually after 5 years.

    asked by Nicholas
  6. Math for Ms. Sue please!

    1. Name the solid with the description as a figure that has one base that is a rectangle and four lateral surfaces that are triangles. (1 point) triangular pyramid cone rectangular prism rectangular pyramid 2. A solid with two parallel and congruent bases

    asked by Delilah
  7. Math

    Graph 4x2 + y2 = 9. What are its lines of symmetry?

    asked by Kayla
  8. Chemistry

    When a diprotic acid, H2A, is titrated by NaOH, the protons on the diprotic acid are generally removed one at a time, resulting in a pH curve that has the following generic shape. (a) Notice that the plot has essentially two titration curves. If the first

    asked by Franklin
  9. physics

    A flight attendant pulls her 70 N flight bag a distance of 253 m along a level airport floor at a constant speed. The force she exerts is 40 N at an angle of 53° above the horizontal A) Find the work that she does on the flight bag B) Find the work done

    asked by zheane
  10. Physics

    A thundercloud has an electric charge of 43.2 C near the top of the cloud and -38.7 C near the bottom of the cloud. The magnitude of the electric force between these two charges is 3.95x10^6 N. What is the average separation between these charges?

    asked by Amber
  11. History help: check answer

    5. What issue led to the construction of the Berlin Wall? A.) new American intervention in Europe *B.) Soviet attempts to control all of Germany C.) the removal of U.S. troops from Berlin *D.) U.S. refusal to recognize a divided Germany Not sure if it's B

    asked by Cassie
  12. Life orientation

    Name four innovative strategies to counteract possible unemployment

    asked by Farkz
  13. not sure where to begin

    In what ways is your standard of living different from that of your parents or grandparents when they were your age? Why have these changes occurred ?

    asked by roger
  14. math

    two systems of equations are giving below for each system choosethe best description of its solution if applicable give solution x+4y=8 -x-4y= -8 choose which one this problem fit in 1)the system has no solution 2) the system has a unique solution (x,y)=

    asked by sw
  15. Chemistry

    A 50.0 mL sample of 0.10 M pyridine, C5H5N, is titrated with 0.2 M HBr. Calculate the pH to one decimal place when the following volumes of titrant have been added. 0.00 mL a) 0ml b)17ml c)25ml d)40ml

    asked by Katie
  16. math

    Cinema 2 has 25 seats in the first row and 30 rows in all. Each successive row contains one additional seat. How many seats are in the theater

    asked by kheem
  17. Math 0098

    A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000 lower than in the first. The tax in the first city was 5.5% , and the tax in the second city was 5%. The total hotel tax paid for the two cities was

    asked by Anonymous
  18. math algebra

    a diver dives from a cliff .when her centre of gravity is 46 ft above the surface of the water. her initial vertical velocity leaving the water is 9 ft per second. after how many secs does she hit the water? solve

    asked by E
  19. english

    in which sentence does the objective complement function as an adjective? a-while gardeners love rain, picnickers consider it a nuisance. b-skiers called the record snowfall incredible! c-the hurricane forecasters named the next storm Bob.

    asked by sam
  20. Exam: 986109RR - CHOOSING YOUR BUSINESS

    1. The servers at Gerry Frasier's busy ice cream shop decided that putting more ice cream in the sundaes and cones would bring back more customers. After three months, Gerry was surprised to discover that his profit had A. increased, although sales had

    asked by Anonymous
  21. chemistry

    A buffer consists of 0.14 M KHCO3 and 0.61 M K2CO3. Carbonic acid is a dirpotic acid with Ka1= 4.5*10^-7 and Ka2= 4.7*10^-11. a) which Ka value is more important to this buffer b) what is the buffer pH?

    asked by Justine
  22. Social Studies

    How did Nubia's physical features affect civilization in the region?

    asked by Anonymous
  23. math

    which expression stands for "32 more than a number d" ? A. 32 x d B. 32- d c. 32 + d d. 32 divided by d I am not sure?

    asked by jared
  24. Math

    A population of 75 foxes in a wildlife preserve quadruples in size every 15 yr. The function y= 75 * 4^x , where x is the number of 15 yr periods, models the population growth. How many foxes will there be after 45 years?

    asked by Casey
  25. Soc. Studies

    From his time in Congress, Johnson was known for his skills in compromise. debate. legislation. foreign relations. I think it is legislation...?

    asked by Cassie
  26. algebra

    THE COMMUTER Sensible Sally has a job that is 35 miles from her home. She needs to be at work by 8:15 a.m. Sally wants to maximize her sleep time by leaving as late as possible but still get to work on time. From experimentations, Sally discovered that if

    asked by sarah
  27. Math

    There are a total of 103 foreign language students in a high school where they offer Spanish, French, and German. There are 19 students who take at least 2 languages at once. If there are 38 Spanish students, 38 French students, and 46 German students, how

    asked by Lane
  28. Chemistry

    If some NH4Cl is added to an aqeous solution of NH3: A. pH of solution will decrease B. PH will not change C. pH will increase D. NH4Cl cannot be added to NH3 E. The solution will not have pH I think the answer is B, because if NH4Cl is added to the

    asked by Robby
  29. Chemistry

    For each of the following, enter the number of covalent bonds that the atom can form: (A) One atom of carbon (B) One atom of sulfur (C) One atom of nitrogen with no net charge (D) One atom of nitrogen with positive net charge (E) One atom of oxygen with no

    asked by qwerty
  30. math

    Application The steps to the front entrance of a public building rise a total of 1 m. A portion of the steps will be replaced by a wheelchair ramp. By a city ordinance, the angle of inclination for a ramp cannot measure greater than 4.5°. What is the

    asked by Anonymous
  31. algebra II

    What are the possible rational zeros of f(x) = 2x3 – 15x2 + 9x + 22?

    asked by Anonymous
  32. English: check answers

    4. Choose the correct form of the modifier: When my sister is thinking, she sits __________. A.) silent *B.) silently 5. Choose the correct form of the modifier: I was _________ excited about going to the concert than I usually am. A.) little *B.) less C.)

    asked by Cassie
  33. POETRY, PART 2

    4. Which one of the following poems depends heavily on the use of allusion for effect? A. "Death, Be Not Proud" B. "Grass" C. "Do Not Go Gentle into That Good Night" D. "God's Grandeur" 5. The theme of the poem "Richard Cory" is that A. money can't buy

    asked by Calvin
  34. Chemistry

    Oxidation of bis(bipyridine) copper (I) ion by molecular oxygen is described by the equation: Cu(C10H8N2)2+(aq) + O2(aq) ----products The reaction is first order in oxygen and second order in Cu(C10H8N2)2+ (a) Write the rate law (b) What is the overall

    asked by Sabrina P
  35. Cal 1

    Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answer to two decimal places.) tan x ≈ x

    asked by Dee
  36. Soc Stud

    Why was the Immigration and Nationality Act of 1965 necessary? A.The legislation setting immigration policy had expired. B.Too many immigrants were coming to the United States each year. C.Existing American immigration policies were discriminatory. D.The

    asked by Cassie
  37. college physics

    A long, straight, cylindrical wire of radius R carries a current uniformly distributed over its cross section. 1. At what location is the magnetic field produced by this current equal to quarter of its largest value? Consider points inside the wire. 2.At

    asked by Anonymous
  38. Geometry

    A rectangular poster measures 42 inches by 26 inches. A frame shop fitted the poster with a half inch mat border

    asked by Eddie
  39. chem

    Calculate the pH of a solution made by adding 3.20 g of lithium oxide (Li2O) to enough water to make 1.210 L of solution. (Kw = 1.0 10-14)

    asked by sara
  40. Spanish: check answers

    16. Which sentence is correct? A. Yo no entiendo a la maestra. *B. Yo no entiendo a este libro. Possessive Adjectives 17. What would be the correct PA in Spanish? : Ellos tienen (their) libros. Answer:sus 18. What would be the correct PA in Spanish? : Ella

    asked by Cassie
  41. GCU

    Identify the three components/puzzle pieces that you believe are most critical to the formation of a worldview. Refer to the Cosgrove text to help identify these components. 2) After considering these components, write an essay of 500-750 words that

    asked by Samarey
  42. chemistry

    When magnesium burns in air, it reacts with oxygen and nitrogen, forming magnesium oxide and magnesium nitride. If 20.0L of air is available for this reaction, what mass of each compound can be formed? (Remember air is about 80% Nitrogen and 20% Oxygen)

    asked by Chase
  43. math

    A textbook store sold a combined total of 315 physics and chemistry textbooks in a week. The number of physics textbooks sold was two times the number of chemistry textbooks sold. How many textbooks of each type were sold?

    asked by help
  44. algebra

    Scientists can determine the age of ancient objects by a method called radio carbon dating. The bombardment of the upper atmosphere by cosmic rays converts nitrogen to a radioactive isotope 14C of carbon with a half-life of about 5710 years. Vegetation

    asked by Emily
  45. Science- chemistry

    fuzzy silver coating is impure silver. it can be converted back into silver nitrate by reacting it with nitric acid what has been done to the reaction mixture to recover solid silver nitrate?

    asked by Josh
  46. Physics

    Periodic waves spread out over the surface of a lake where two women, Jenny and Melissa, are fishing in separate boats 102 meters apart. Each woman's boat bobs up and down 19/min. At a time when Jenny's boat is at a crest, Melissa's boat is at its lowest

    asked by Anonymous
  47. math

    christy bought an 8-foot piece of lumber to trim a bookshelf. altogether, she needs 100 inches of lumber to trim. did christy buy enough lumber?explain.

    asked by nana
  48. Chemistry

    Describe an experimental method for the estimation of oxalate in the product, potassium trioxalatoaluminate(III)

    asked by ESPINE
  49. chemistry

    2NaOH + H2SO4 yields Na2SO4+2H2O calculate the molarity of H2SO4

    asked by aisha
  50. Chemistry

    The density of carbon in the form of diamonds is 3.51 g/cm^3. If you have a 40- carat spherical diamond, what is the diameter of the diamond in millimeters? (1 carat=0.200 g)

    asked by Sophie
  51. chemistrey

    What is the molarity of a solution prepared by dissolving 8 grams of BaCl2 in enough water to make a 450.0 mL solution?

    asked by Anonymous
  52. help

    can someone help me with the pythagorean theorem? VERY HARD IM IN 7TH GRADE AND THIS IS SOME 7TH GRADE MATH HOMEWORK THAT I NEED HELP WITH!!!!!!!!!!!

    asked by juju
  53. History: Check answers

    “Our prosperity rests on the basic [beliefs] that the work of free individuals makes a nation—and it is the job of Government to help them do the best they can... that our greatest resource is the health and skills and knowledge of our people... that

    asked by Cassie
  54. Chemistry

    Find the pH and volume (mL) of 0.447 M HNO3 needed to reach the equivalence point(s) in titrations of each of the following. (a) 2.65 L of 0.0950 M pyridine (C5H5N) pH volume Answer = 563 mL (b) 0.188 L of 0.250 M NH3 pH volume Answer = 105 mL I can't

    asked by Franklin
  55. computers

    According to legend, the island of Manhattan was purchased from its Native American population in 1626 for $24. Assuming that this money was invested in a Dutch bank paying 5 percent simple interest per year, construct a table showing how much money the

    asked by esteban
  56. chemistry

    For each of the following reactions, predict whether the equilibrium lies predominantly to the left or to the right. HCN(aq) + SO42-(aq) CN -(aq) + HSO4-(aq) I think it has something to do with the Ka but im not sure!

    asked by hannah
  57. physics

    when inflated, a rubber lifeboat takes the form of rectangular box of dimensions 2mx1.5x40cm. with out any load, it floats. how many 60kg people can it carry before water flows into it? assume that the density of seawater is 1025g/cubic meter.

    asked by pretty
  58. Algebra 1

    A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 80 meters high. The height of the ball is given by the quadratic equation h = -49t^2 + 35t + 140 where h is in meters and t is the time in seconds since the ball

    asked by Sherry
  59. Physics

    Two flat surfaces are exposed to a uniform, horizontal magnetic field of magnitude 0.79 T. When viewed edge-on, the first surface is tilted at an angle of 26° from the horizontal, and a net magnetic flux of 9.2 x 10-4 Wb passes through it. The same net

    asked by Anonymous
  60. Management for Organizations

    Would someone PLEASE check my answers..THANKS in advance!!! 1. Employee inventories and skills inventories are strategies for ________________________. (D) job design promoting-from-within external recruiting human resource planning 2. Which one of the

    asked by Ashley
  61. math

    suppose you won a contest at the start of 5th grade that deposited $3000 in an account that pays 5% annual interest compounded continuously. how much will you have in the account when you enter high school 4 years later? round to nearest dollar how much

    asked by jude
  62. Chemistry

    A Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 291 units was obtained for the intensity of the 671 nm red emission line. Then 1.00 mL of a 11.7 mM Lithium standard

    asked by Chris
  63. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #7: A 30 kg ball is launched at an angle of 15 degrees

    asked by Anna
  64. math

    The sum of the first 10 terms of an arithmetic series is 145 and the sum of its fourth and ninth term is five times the third the..determine the first term and constant difference

    asked by zandile
  65. Physics II

    A 51.0 g sample of a conducting material is all that is available. The resistivity of the material is measured to be 12 10-8 · m, and the density is 7.67 g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5

    asked by Stephanie
  66. Math

    You have 192 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area. Find the largest area that can be covered and the length of

    asked by Ryan
  67. chemistry

    What molar ratio of acetic acid to sodium acetate is required to create a buffer solution at a pH of 4.89 at 25 degree C? Ka for acetic acid is 1.8 X 10-5 A. 2.9 B.0.56 C.1.4 D.0.72 E.0.2 ( I chose this and got is wrong) I'm lost on how to do these

    asked by Glen
  68. MATH(Cube Problem)

    A cube 4 cm on each side is painted blue and cut into 64 one cm cubes. How many one-cm cubes are painted blue on exactly two faces?

    asked by noman
  69. math

    1. List the terms in the expression below, place a comma between each term. 19cd + 6d^2 + 8 2. List the coefficients in the expression below, place a comma between each coefficient. -7y + 13ab^2 + x

    asked by gary
  70. physics/math

    A spherical raindrop of mass 0.0108 g and radius 1.37 mm falls from a cloud that is at a height of 1165 m above the ground. Assume the drag coefficient for the raindrop is 0.60 and the density of the air is 1.3 kg/m3. What is the raindrop's terminal speed?

    asked by HP
  71. Chemistry

    calculate the standard free-energy change for the synthesis of hydrazine from nitrogen and hydrogen. N2(g) + H2(g) right arrow N2H4(l)

    asked by Kenneth
  72. Biology

    Dopamine is a neurotransmitter—a chemical released by nerve cells to send signals to other nerve cells. Activities like sex and gambling increase the levels of dopamine released within the brain. The highly addictive drugs cocaine and methamphetamine

    asked by qwerty
  73. Algebra 1

    The area of a rectangular floor is 8x+6x-20. The width of the desktop is 2x+4. What is the length of the floor?

    asked by Candy
  74. pre-calculus

    find the common difference in an arithmetic sequence in which a(sub 15)-a(sub7)=-1. what should i start with ??

    asked by jinie
  75. algebra

    solve the compound inequality write the solution in interval notation 2u+4>-6 and 3u-6> -3 =

    asked by help
  76. science

    Describe one benefit of the transpiration stream of a plant:

    asked by Shane
  77. university

    Using a wrench 0.4 m long, a force of at least 100 N is needed to turn a nut. (a) How large a torque is required? (b) How large a force is needed to turn the nut using a wrench 0.15 m long?

    asked by waleed
  78. math

    Mike is saving money for a new bike that costs $180.00. If m represents the amount of money he has saved so far, which expression represents the amount of money, in dollars, he still needs to save? a. 180 + m b. 180 - m c. 180 ' m d. 180 . m

    asked by john
  79. EMS

    mention and define any five concepts for each of the following subject,accounting;economics and business studies?

    asked by vusi
  80. Algebra 1

    2k^2-13k-24 Factor the expression..

    asked by Candy
  81. social studies

    americans are united by the strong belief in basic principles.what are they?

    asked by mic
  82. Chem

    if 15 g of nitrogen reacts with 15 g of hydrogen, 10.5 g of ammonia is produced. what is the percent yeild of this reaction?

    asked by courtney
  83. Cal 1

    Find the linearization L(x) of the function at a. f(x) = x^4/5, a = 32

    asked by Dee
  84. physics,dynamics

    The acceleration of a particle along a straight line is defined by a = (2t - 9) m/s2, where t is in seconds. At t = 0, s = 1 m and v = 10 m/s. When t = 9 s, determine (a) the particle’s position, (b) the total distance traveled, and (c) the velocity.

    asked by Anonymous
  85. Algebra

    The difference of the cubes of two consecutive odd positive integers is 400 more than the sum of their squares. Find the sum of the two integers.

    asked by John
  86. math

    A ball is thrown upward with an initial velocity of 35 meters per second from a cliff that is 80 meters high. The height of the ball is given by the quadratic equation h = -49t^2 + 35t + 140 where h is in meters and t is the time in seconds since the ball

    asked by Please help me.
  87. math

    solve the system of equations in three variables -3x+y-z=-10

    asked by Laura
  88. Physics/mats

    Two blocks with masses m1 = 1.40 kg and m2 = 3.00 kg are connected by a massless string, as shown in the Figure. They are released from rest. The coefficent of kinetic friction between the upper block and the surface is 0.390.In the figure m1 is on top of

    asked by HP
  89. Meteorology

    Does the Sun's rays ever make 90- degree angles to the Earth's surface in San Francisco at any time during the year? Why or why not?

    asked by Taylor B
  90. Geometry

    The sum of four numbers is 771. The ratio of the first to the second is 2:3. The ratio of the second to the third is 5:4. The ratio of the third to the fourth is 5:6. Find the second number.

    asked by greendayangel21guns
  91. Social Studies

    I need some help determing what ocean Australia is located in. The question on my study guide says, "Australia is located in the southeast __________ Ocean. I see it is surrounded by the Southern Ocean, Indian Ocean, and Pacific Ocean. I'm not sure which

    asked by Brandi
  92. Social Studies

    I need some help determing what ocean Australia is located in. The question on my study guide says, "Australia is located in the southeast __________ Ocean. I see it is surrounded by the Southern Ocean, Indian Ocean, and Pacific Ocean. I'm not sure which

    asked by Brandi
  93. Physics

    A roof tile of 0.2kg drops 10m from the top of the building to the ground if a tile falls with a uniform velocity calculate its k.E as it stricks the ground using kinematic principle

    asked by Ozybaby
  94. Check my physics

    Would you mind checking one of my problems from my physics study guide? I know the answer and just want to make sure I am using the right formula. :) A 78-kg skydiver has a speed of 62 m/s at an altitude of 870 m above the ground. a. Determine the kinetic

    asked by Anna
  95. chemistry

    the reaction between H2 and O2 reaches equilibrium in a closed container according to the following balanced equation: 4HCl+O2=2H2O+2Cl2 the volume of the container is 5dm3 calculate the equilibrium constant (Kc) for this reactin

    asked by tjale
  96. Social Studies

    I know the higher the literacy rate the higher the GDP and standard of living in a country. I'm having trouble with a study question though on how can a country increase their literacy rate. Thanks.

    asked by Brandi
  97. chem30

    what is the molar enthalpy of combustion for magnesium? calimetry experiment results 100.0ml of HCl with 0.31g of Mg ribbon temp before ribbon added 23degrees and after ribbon added 37degrees. Need to show work so I understand. q=mcdeltaT

    asked by redeye
  98. Statistics

    Find the 35th percentile of the normal distribution with mean 270 and SD 25.

    asked by James
  99. Statistics

    The 60th percentile of a normal distribution is 110. The 70th percentile is 120. Find the 90th percentile.

    asked by James
  100. chemistry

    When 5.00 grams of copper racts with excess silver nitrate, silver metls and sopper nitrate are produced. What is the theoretical yeild of silver in this reaction? please give step by step help

    asked by Anonymous
  101. Calculus

    Given that \displaystyle \int_0^4 x^3\sqrt{9+x^2} dx = a, what is the value of \lfloor a \rfloor?

    asked by John
  102. Basic Math Venn Diagram

    Hi! Having a lot of trouble with this one problem. The venn diagram problem is n(U)-n(B). I realize I did not post the venn diagram, I just need to know how to solve that type of problem using a venn diagram! Help would be greatly appreciated. : ) Thank

    asked by Grace
  103. chemistry

    Calculate the pH of a 195 mL solution containing 7.50g of ethylamine (CH3CH2NH2) and 7.50g of ethylammonium bromide (CH3CH2NH3+ Br-). The Kb of ethylamine is 4.7 x 10-4

    asked by z
  104. English

    Write the verb that agrees with the subject of each sentence below 1. Land and water ___ drawn to scale on a globe (is are) is 2.On a globe or a map an inch or a centimeter ___ for a much larger unit of measurement (stand stands) stands 3.Neither these

    asked by Jerald
  105. Algebra 1

    6t^2+21t-12 Factor the expression I don't know how to figure it out

    asked by Candy
  106. language

    How do you diagram this sentence. Don't fall off the bench.

    asked by math brain
  107. math Asap

    NAME the Property of Multiplication used at each step to simplify the equations. For each a b and c A. (4)(0.25)(3.7) B. (1)(3.7) C. 3.7

    asked by noahc
  108. Physics

    A 7.00 x 10 -5 H solenoid is constructed by wrapping 66 turns of wire around a cylinder with a cross-sectional area of 6.2 x 10-4 m2. When the solenoid is shortened by squeezing the turns closer together, the inductance increases to 8.40 x 10-5 H.

    asked by Anonymous
  109. Chemistry

    Mercury dissolves in concentrated nitric acid, with the evolution of a reddish-brown gas, just as in the reaction shown in figure 5.4 on page 188 for copper. The oxidation state of the mercury after reaction is +2. Write a balanced net ionic equation for

    asked by Sophie
  110. English

    select an object from starry night and write sentences in which you personify that object what does that mean ?

    asked by Damaris
  111. Interpersonal Communication COM200

    How do all these concepts relate to interpersonal communication? Also, give an example of how your “self-concept,” “self-image,” or “self-esteem” has affected your interpersonal communication. How do self- concept, self- image, and self- esteem

    asked by clubhater
  112. Maths

    Prove that the triangle formed by the points of contact of the sides of a given triangle with the excircles corresponding to those sides is equivalent to the triangle formed by the points of contact of the sides of the traingle with the inscribed circle

    asked by Phy
  113. 5th grade math (word problems)

    I'm not sure how to solve the following problem. I don't think i have enough information. Ali deposited $120 in her savings account. This represents 75% of the money she received for her birthday. She pent the rest of her money on a lego toy. How much did

    asked by Alex
  114. Chemistry

    You are using concentrated hydrochloric acid solution (12.0 M)to make 445.0 ml of a 5.85 M solution. Calculate the number of milliliters of concentrated HCl required to make the solution.

    asked by Tanya
  115. algebra 1

    A salesperson at a clothing store earns a 5% commission on all sales. How much commission does the sale person earn on a 300$ sale?

    asked by andy
  116. Chemistry

    How many grams of NH4Br(Molar Mass=98g)are in 440.0 mL of 1.75Moles NH4Br

    asked by Chris
  117. Physics

    A ball of mass 0.3 kg, initially at rest, is projected from ground level toward a wall that is 27.0 m away. The ball's velocity the moment it is projected is 75.0 m/s at 60° relative to the horizontal, and the wall is 11.0 m high. During its flight, the

    asked by Jalen
  118. Chemistry

    What is the pH of a 0.77M solution of methylamin at 25 degree C? CH3NH2, Kb= 4.4X10-4? How do I set this up to get the answer?

    asked by George
  119. automotive repair nd maintenance

    how does the two stroke internal combustion engine work...plz explain it....

    asked by lee
  120. Physicis

    The gravitational force between two objects is 2,000N. They are moved so that the distance between them is four times the original distance. What is the new force between the objects?

    asked by Sarah
  121. physics

    A 445 g sample of ice at -58CENTIGRADE iS HEated until its temparature reaches -29 centigrade.find the change in heat contend of the system.

    asked by anjana
  122. chemistry

    how do i balance SO3 + H2O = H2SO4

    asked by ariana
  123. Math

    A 6 ft person has a shadow 5ft long. A nearby tree has a shadow 30ft long. How tall is the tree?

    asked by Cody
  124. Comma help

    Choose the option that corrects the sentence below. If the sentence is correct, select “d. The sentence is correct.” Commander-in-Chief Sam Houston defeated the Mexican army and captured Santa Anna in 1836 A Commander-in-Chief, Sam Houston, defeated

    asked by Abbey
  125. geometry.

    In the diagram, a trapezoid is shown with x=36 and y=56. Find the area of the trapezoid. It's an isosceles triangle with base angles of 60°.

    asked by taylor.
  126. Physics/math

    A block with mass m = 16.1 kg slides down an inclined plane of slope angle 24.3o with a constant velocity. It is then projected up the same plane with an initial speed 3.35 m/s. How far up the incline will the block move before coming to rest?

    asked by HP
  127. English

    1.Rob or Fred ____ basketball after school. (plays play) plays 2.The teacher or the students ____ the display to visitors. (explain explains) explain 3.Neither Grace nor Kirk ___ the name. (remember remembers) remember 4.A laboratory and an office ____ on

    asked by Jerald
  128. Science

    In an atom, electrons ____. are located in the nucleus are paired with neutrons are located in the electron cloud are always in the same place

    asked by Raelyn
  129. edu

    7.Which one of the following conditions Fails to foster good communicative interaction in an early learning setting? a. The teacher repeats every thing a child says, but in the proper English form. b. At least during the time the child is in the early care

    asked by ray
  130. Algebra

    Simplify (x-7)( x+7)

    asked by Lea
  131. edu..help ms sue

    A young Asian child would probably be less inclined to engage in backchanneling than a middle-class American child does because: a.he or she incorporates both verbal and nonverbal responses b.middle-class children are taught and expected not to engage in

    asked by ray
  132. Chemistry

    A 1.00 kg gold bar at 1010 K is dropped into 0.750 kg of sand at 25 °C. Assuming no heat is lost to the atmosphere, what is the final temperature of the sand?

    asked by John
  133. Maths

    A farm rears 9 ducks and cows in his farm. There are 28 legs altogether.How many ducks are there in the farm?

    asked by Anonymous
  134. Chemistry

    The molal freezing point constant(Kf) for acetic acid is 3.90 C/m. When 31.5 grams of unknown solute is dissolved in 650 grams of acid the freezing point is lowered by 0.79 what is the molar mass

    asked by Chris
  135. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #6: A 30 kg kid on rollerskates is moving 1 m/s. His

    asked by Anna
  136. Health

    What are the social effects on you and your family if you abuse the drug LSD?

    asked by Anonymous
  137. Biology

    Which of the following bond types is Testosterone capable of forming with a suitable partner molecule? Indicate your answer by checking "Yes" or "No" as appropriate. Hydrogen Bond Ionic Bond van der Waals forces As a whole, is the Testosterone molecule: -

    asked by qwerty
  138. Math

    If you have 36ft of fencing what are the areas of the different rectangles you could enclose with the fencing? Consider only whole number dimensions.

    asked by Sara
  139. plus 1-chemistry

    calculate the mass of caco3 required to librate 10l of co2 at stp?

    asked by kareem
  140. Chemistry

    These blanks I REALLLY need your help. Our teacher gave the teaching job to this other I think coop student who wants to be a teacher to teach for a day but I| seriously don't understand anything she said..in short I don't have anyyy clue about this. So

    asked by Kristien
  141. Derive

    Find the derivative of sin(2x + 3y)= 3xy + 5y-2. I have this so far 1) cos(2x+3y) * d/dx (2x+3y)= 3xy' + 3y + 5y' 2) cos (2x+3y) * [2 + 3y']= 3xy' + 3y + 5y' 3) 3y' cos (2x+3y) + 2cos(2x+3y)= 3xy' + 3y + 5y' 4) 3xy' + 5y' - (3y(cos(3x+3y)= 2 cos (2x + 3y)

    asked by Mary
  142. Physics

    During a 74-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 4.6-mA current in a nearby secondary coil. The secondary coil is part of a circuit in which the resistance is 12 Ù. The mutual inductance

    asked by Anonymous
  143. English

    Write ten sentences about different people places or things. Begin each sentence with a compound subject. Make sure the compound subject and the verb agree. 1.My friend and I go to the park on the weekend. 2.Lance and Darren don't want to go to the party.

    asked by Jerald
  144. Physics

    You launch a model rocket up into the sky. Right after launch the rocket is accelerating upwards at 10~m/s^2. What is the magnitude of the net force in Newtons on the rocket if the rocket has a mass of 0.1 kg?

    asked by John
  145. physical

    Suppose a sound of frequency 1200 Hz is emitted from a speaker 15 meters away from you. At YOUR location, the intensity is 1.0E-7 W/m2. Let me assume your eardrum has area 3E-5 m2. If the sound continues for 8 seconds, what total amount of energy is

    asked by Anonymous
  146. Math Pre Cal

    Find the values of the trigonometric functions of è from the information given. cot è = 1/2 , sin è < 0

    asked by Dani
  147. science

    How do blood O2 levels, CO2 levels and PH effect ventilation? Where are the receptors that monitor blood gases located and what do these receptors actually respond to? What blood gas is most closely monitored by the body? Given what you know about blood

    asked by noil
  148. Algebra

    what is the smallest positive integer N such that 13^N \equiv 1 \pmod{2013}

    asked by John
  149. Algebra

    Alan and Bob are playing with numbers. Starting with the number n=1 they take turns performing arithmetic manipulations with n. Alan goes first and always multiplies n by 3. Bob adds 1 or 2 to the number n, depending on a coin toss. A number is called

    asked by John
  150. Math (immediate help, please!)

    A bicycle has 26-inch diameter wheels. If the wheels revolved 2 times after the brakes were applied, the stopping distance is approximately _____. What's the answer? Provide a thorough explanation as well, please.

    asked by Isabel
  151. Physics

    I'd like to know when it is appropriate to use each formula. Im new to studying physics and its seems that there are certain situations when one formula leads to the answer, yet a derivative of that formula that should lead to the answer is incorrect. For

    asked by Jeremy
  152. Science

    Why can the electronic configuration of some transition element not be written like this;Mg=(Ne)3s2

    asked by Rukky
  153. Geometry

    What is the minimum distance between any point on the circle x^2 + y^2 = 25 and the line y = -\frac{3}{4}x + \frac{75}{4} ?

    asked by John
  154. Cal 1

    Use Newton's method with the specified initial approximation x1 to find x3, the third approximation to the root of the given equation. (Round your answer to four decimal places.) 1/3x^3 + 1/2x^2 + 1 = 0, x_1 = −3

    asked by Dee
  155. chemistry

    a current of .500 A is used for the electrolytic decomposition of water. how long (in hours) will it take to produce 1.0 L (Standard temperature and pressure) of hydrogen gas? what mass of oxygen gas will be produced at the same time?

    asked by ivy jean
  156. math

    Application The steps to the front entrance of a public building rise a total of 1 m. A portion of the steps will be replaced by a wheelchair ramp. By a city ordinance, the angle of inclination for a ramp cannot measure greater than 4.5°. What is the

    asked by Anonymous
  157. English

    What is a good topic sentence for an essay about eating insects? *The article (source where I got the info from) was about insect eating and if more countries should try to consume it.

    asked by Emma
  158. Maths

    A farm rears 9 ducks and cows in his farm. There are 28 legs altogether.How many ducks are there in the farm?

    asked by Anonymous
  159. Science

    Detiels about snakes

    asked by Amaresh
  160. maths-equation

    a man travels some distance at a speed of 12km/hr and returns at 9km/hr .if the total time taken by him is 2hrs 20 min ,find the distance.

    asked by anoynomous
  161. Math

    The area of a certain rectangle is 288 yd2 the perimeter is 68 yd. if you double the length and the width what will be the area and perimeter of a new rectangle?

    asked by Manny
  162. geometry

    ABCD is a convex quadrilateral satisfying AB=BC=CD,AD=DB and ∠BAD=75∘. What is the measure of ∠BCD?

    asked by Anonymous
  163. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #1: A skier with a mass of 60.0 kg is standing at the top

    asked by Anna
  164. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #3: A 30 kg kid on rollerskates is being pushed by his

    asked by Anna
  165. math

    in a pentagon each of the two angles measuer 76 degrees another angle measueres 111 degrees and the fourth measures 146 degrees. what is the measuer of the missing angle? what is it can you explain step by step please!

    asked by Anonymous
  166. physics

    A 90kg stuntman falls from a building that is 80 meters tall. (Vo = 0) Fortunately, the stuntman is attached to a cable that is wrapped around a flywheel (massive spool), with a radius of 0.5m. If the man takes 8 seconds to reach the ground, (a) what is

    asked by Sam
  167. Life orientation

    What unethical behaviour is taking place in the case study?

    asked by Thulani siweya
  168. English

    I need an good attention getter for a research paper on basketball. Please Help

    asked by Kim
  169. Chemistry

    Given these pairs of atoms, indicate whether the following bonds are polar or non-polar covalent bonds. C-H N-H O-H C-C

    asked by qwerty
  170. Chemistry

    Given the part of the molecule shown below, can the red atom participate in a hydrogen bond with an approriate bonding partner? -O-H -C-H -N-H -O-H -C-H -N-H

    asked by qwerty
  171. physics

    why are water tanks broader at the bottom than at the top

    asked by hatim
  172. math

    if a cylinder with a height equal to its diameter has a volume of 20 cubic inches. How can you fine the volume of a sphere whose radius is equal to that of a cylinder

    asked by julie
  173. 4th grade Algebra

    Evaluate the expression 15 - n when n= 9 I am not sure but is it 6?

    asked by jared
  174. life orientation

    What,according to the basic conditions of employment act applies with regard to the contravention

    asked by petunia
  175. Biology

    Functions Store information Copy information Transmit information What is the structure of each molecule

    asked by Candy
  176. economics

    describe and compare the following types of monopolies and the benefits of their existence: natural, technological and franchises. thank you

    asked by justastudent
  177. life orientation

    what unethical behaviour is taking place at workplace

    asked by katlego
  178. chemistry PLEASE HELP

    How many milligrams of sodium azide will produce 8.35 Liters of N2 at STP???

    asked by Liv
  179. Physics-VASTS

    The Mass Budget: Mars Reconnaissance Orbiter Repair Mission Operational Concept Math Problem: The Mars Reconnaissance Orbiter (MRO) has encountered a failure in its High Resolution Imaging Science Experiment (HiRISE) camera. Mission Case: As the HiRISE

    asked by red
  180. English

    Can somebody help me write my rough draft for a speech about how youth's and adult's should get the same penalty for crime?

    asked by Michaela
  181. math help

    solve the compound inequality < 2x-4

    asked by Anonymous
  182. Physics

    A flat circular coil with 192 turns, a radius of 2.35 x 10-2 m, and a resistance of 0.359 Ù is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at a

    asked by Anonymous
  183. Math

    I'm confused on how to answer a rotation question. If I have a picture and it rotates 270 degrees to where the top of the picture is now to the left of the page did the figure rotate 270 degrees to the right or left? Since it is clockwise I was thinkng to

    asked by Brandi
  184. science

    is diamond a compound?

    asked by rodd
  185. english

    Clark sees that the wind in the nebraska setting has changed aunt georgina by? A. bending her shoulsers B. rotting her teeth C. yellowing her skin D. dirttying her clothes

    asked by alex
  186. English

    3.Neither these globes nor this map ____ my street (show shows) Is globes plural and map singular? So the answer would be shows?

    asked by Jerald
  187. Math (immediate help, please)

    A bicycle has 26-inch diameter wheels. If the wheels revolved 2 times after the brakes were applied, the stopping distance is approximately _____. What's the answer? Provide a thorough explanation as well, please.

    asked by Isabel
  188. Chemistry

    Recall that all aqueoous solutions contain_____. Water can also undergo ____. This process is called the ______of water. The reaction can be written as: Notice the double arrow in the reaction. This indicates that the reaction is_____. However, only a tiny

    asked by Kristien
  189. language

    How do you diagram this sentence. A picture of you and me was taken.

    asked by math brain
  190. Geometry

    ABCD is a convex quadrilateral satisfying AB=BC=CD, AD=DB and \angle BAD = 75^\circ. What is the measure of \angle BCD?

    asked by John
  191. algebra!!

    How many integer values of x are there such that |x−3|+5

    asked by Anonymous...please help!
  192. Science

    The maximum number of electrons in the second energy level of an atom is ____. two four eight ten The number of _____ is equal to the atomic number. protons neutrons electrons both a and c

    asked by Raelyn
  193. Algebra

    A certain nation is losing 26 million acres of rain forest each year. (a) Find the linear function f that calculates the change in acres of rain forest in millions in x years. Use x as a variable (b) find f(3) and interperate the result. f(t)= Simplify

    asked by Ruth
  194. algebra

    √5 ____ √45 How do you simplify this. Do you multiply the top and bottom by the square root of 45

    asked by Jordan
  195. Algebra 2

    Because of friction and air resistance, each swing of a pendulum is a little shorter than the previous one. The lengths of the swings form a geometric sequence. Suppose the first swing of the pendulum has an arc length of 100 cm and a return swing of 99

    asked by Amber
  196. Geometry

    Circles \Gamma_1 and \Gamma_2 intersect at 2 distinct points A and B. A line l through A intersects \Gamma_1 and \Gamma_2 at C and D, respectively. Let M be the midpoint of CD. The line MB intersects \Gamma_1 and \Gamma_2 again at E and F , respectively.

    asked by John
  197. math

    use substitution to solve the system -5x+2y=27 y=2x+11 x= y=

    asked by hello repost
  198. literacy

    To determine the best place to begin your online research, you should first A. formulate your research question B. choose severval verbs and modifiers to help define your search. C. identify keywords and search terms D. settle on a single, concise search

    asked by kim
  199. general chemistry

    Calculate the molarity of each of the following solutions.70.8 in 2.51 of solution

    asked by kelia
  200. Chemistry

    What is the volume of 0.674 kg of acetylene, C2H2, at STP?

    asked by Maria
  201. math

    Identify the property or rule that justifies each step in the calculation. 4/7k+(j+1/7k) 4/7k+(1/7k+j) (4/7k+1/7k)+j k(4/7+1/7)+j 5/7k+j

    asked by syram
  202. math

    A circular coaster, with a diameter of 7 inches, is positioned on a white placement. The placement is a circle whose radius is equal to the diameter of the coaster. About how many square inches of the placemat are NOT covered by the coaster? Show your

    asked by syram
  203. general chemistry

    Calculate the molarity of each of the following solutions.70.8g C2H60 in 2.51L of solution

    asked by kelia
  204. chemistry

    20cm3 of saturated aqueous solution of hydrogen carbonate (iv) at 25^oc requires 10cm3 of 2.0moldm-3 hydrochloric acid for complete reaction.what is the solubility of sodium hydrogen carbonate(iv) in moldm-3 at 25^oc

    asked by nanayeboahford
  205. Cube Problem

    A cube 4 cm on each side is painted blue and cut into 64 one cm cubes. How many one-cm cubes are painted blue on exactly two faces?

    asked by noman
  206. Math

    Emma solved this expression. (15 - 13) x 6 = 1 2 x 7 14 What was her error? Explain.

    asked by Ryan
  207. Biology

    Muscle are made up of muscle functions called____ ____. Its two words... I was thinking myosin and actin , however, not sure if i AM CORRECT.

    asked by Tomas
  208. Chemistry

    A 1.00 kg gold bar at 1010 K is dropped into 0.750 kg of sand at 25 °C. Assuming no heat is lost to the atmosphere, what is the final temperature of the sand?

    asked by John
  209. probability

    A fair dice is rolled 4 times. What is the probability that at least 2 of the numbers are the same? Use the format a/b.

    asked by Anonymous
  210. geometry

    Circles Γ1 and Γ2 intersect at 2 distinct points A and B. A line l through A intersects Γ1 and Γ2 at C and D, respectively. Let M be the midpoint of CD. The line MB intersects Γ1 and Γ2 again at E and F, respectively. If MA=129,MB=156 and MC=182,

    asked by Anonymous
  211. Lang. Arts

    Revise sentence and put commas in where necessary. Some scientists in San Francisco California filmed skateboarders in action. My answer was: Some scientists in San Francisco, California, filmed skateboarders in action. I was wrong - please help by

    asked by Cassie
  212. maths- commercial mathematics(value added tax)

    A shopkeeper sells an article at the listed price of Rs.1500 and the rate of value added tax is 12% at every stage of sale. If the shopkeeper pays a Value added tax of Rs. 36 to the Government, what was the price, inclusive of Tax, at which the shopkeeper

    asked by anoynomous
  213. law

    what law (federal, state,etc) does abortion fall under?

    asked by Gabby
  214. Math Analysis (PreCal)

    write the equation of a sine function whose amplitude: 2 period: π/2 phase shift: 2/3

    asked by Daijha
  215. Life orientation

    Please guys help me with this question.What,according to the basic conditions of employment act apllies with regard to the contraventions that you've identified?

    asked by Misho
  216. Math (immediate help, please)

    Find the area of a regular pentagon with a side 8 centimeters. Please provide an explanation!

    asked by Isabel
  217. life orientation

    What.according to the basic conditions of employment act applies with regard to the contravention

    asked by Anonymous
  218. Algebra

    Simplify 6x - x^2 (x-3)

    asked by Lea
  219. Chemistry

    Please explain this, I have no idea how to figure this out. What molecule or polyatomic ion has the following features. (a) four bonded atoms, no unshared electrons on the central atom (b) two bonded atoms, no unshared electrons on the central atom (c) two

    asked by Lewis
  220. Pre Algebra

    How do i factor 9t^2+5t-4 using the "ac" method?

    asked by Octavia
  221. Algebra

    Rectangle ABCD has an area of 72 units squared. The length of BF is 4 units. Algebracially prove that the sum of the areas of triangles CBF and ADF are equal to 36 units squared.

    asked by Anthony
  222. life orientation

    Basic condition of employment act traffic control. What according to the basic condition of employment act applies with regard to the contravention that I've identified?

    asked by Anonymous
  223. Chemistry

    Determine the boiling point of a solution contanting 36.1grams calcium chloride molar mass 112 in 200.0grams water.

    asked by Chris
  224. probability

    How many 7 digit positive integers are there such that the product of the individual digits of each number is equal to 10000?

    asked by Anonymous
  225. US HISTORY

    Can anyonehelp me with these questions about World War II. True or false- Japan wanted to defeat Australia in WWII because of it strategic location. Many believe that the origins of WWII can be traced back to the terms of the document that they believed

    asked by Anonymous
  226. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #2: Suppose the spring in a pinball machine has a spring

    asked by Anna
  227. math

    Sven is thinking if two numbers. The sum is 12 . The difference is 4. What are the two numbers

    asked by shana
  228. math

    Suppose G is a connected, simple, planar graph with 100 vertices. What is the largest possible number of edges in G?

    asked by Anonymous
  229. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #5: A roller coaster car starts at Point A at a height of

    asked by Anna
  230. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #8: A 20 kg block of ice slides without friction down a

    asked by Anna
  231. Maths-financial

    Determine the compound interest rate,correct to two decimal places,Emile would require to triple his investment over a period of 10 years?

    asked by Lucas
  232. business math

    okay, here's another one that isn't coming out right. Change to decimal equivalents. Round to the nearest ten-thousandth if necessary. 5'14" I got the 1 degree =60'which =3600" I did it using the example shown in the book, but the answer didn't come out

    asked by tmouery
  233. physics

    I child with a mass of 20kg,hops on a merry go round with moment of intertia of 1000kg and radius of 7m.if it takes the child time T to move 360degrees ,relative to the ground at 6m away from the center,what is the angle covered relative to the ground

    asked by john
  234. Physics

    A 90kg stuntman falls from a building that is 80 meters tall. (Vo = 0)Fortunately, the stuntman is attached to a cable that is wrapped around a flywheel (massive spool), with a radius of 0.5m. If the man takes 8 seconds to reach the ground: (a) what is the

    asked by Sam
  235. Statistics

    A list of numbers has an average of 48 and an SD of 12. The list is transformed by subtracting 3 from each entry and then dividing the result by 5. (1) Find the average of the transformed list. (2) Find the SD of the transformed list.

    asked by Daniel
  236. Statistics

    A quiz consists of 10 questions. Each question is marked either “right” or “wrong.” For each student in the class, the instructor keeps a record of the number of right answers the student got. In the class, the average number of right answers is

    asked by Daniel
  237. Life Orientation

    What,according to the conditions of employment Act applies with regard to the contraventions

    asked by Moloko
  238. Statistics

    Fill in the blank: 50% of the area under the standard normal curve is between -0.5 and _____________.

    asked by James
  239. Biology

    If the original amount of Carbon-14 is 142 kilograms, how much will the sample weight in 11,400 years?

    asked by Jada
  240. Math

    The inequality 175m < x < 178 m represents the range in the daily water levels in Lake Michigan over several days. What does this mean?

    asked by Kweku
  241. algebra

    graph the system and write the solution -2x+y=6 y=1/2+3

    asked by Anonymous
  242. math

    ed needs to purchase 5.6 meters of tape. if each roll contains 80 cm and costs 5.00 what is the total cost of the tape ed must buy

    asked by sam
  243. Math

    How do I find the dimensions of a rectangle if the length of the rectangle is 1 yard more than twice its width, and the area of the rectangle is 66 yards^2 .

    asked by Terry
  244. math

    Nina walked 15 yards to pauls house which rule shows how many yards nina walks for every yard pauls walks

    asked by jessica
  245. edu/diversity

    With growing concern and intake of information , a child may not be able to put new details into former mental bins and concept groups. When this occurs, a search for_____is stimulated a. coherence b. rules c. consonance d. definition Would A be

    asked by ray
  246. Chemistry

    Calculate the pH of a solution created by adding 5.00g of LiF to 150.0mL of 1.25M HF. Ka = 7.2 x 10-4

    asked by A
  247. math help re post

    solve the compound inequality 0

    asked by Anonymous
  248. math

    If the radius of a circular wave is increasing at 2 meters/sec, how fast is the area changing when the radius is 5 meters?

    asked by Jessica
  249. math

    a square kitchen floor can be exactly covered withe square tiles that are either 9 inches or 15 inches on a side. what is the minimym area in square feet that the kitchen can have? how many of each size tile would be needed to cover the minimum size floor?

    asked by jack
  250. history

    What is the virginia state nickname meaning.

    asked by math brain
  251. math

    If the radius of a circular wave is increasing at 2 meters/sec, how fast is the area changing when the radius is 5 meters? A)62.8 square meters per second B)25.0 square meters per second C)31.4 square meters per second D)6.3 square meters per second E)

    asked by Jessica
  252. Derivative

    given that f, g, and h are differentiable functions f(g(h(x))) = x what is h'(x) in terms of f, g, f', g', and h'? I plugged in equations on my own like h(x)= x^4 g(x) = 4th root of x f(x)= x^2 i need more assistance on how to proceed thnx

    asked by Mary
  253. math

    Lori runs 4 more miles than Maria runs. Together, they run 10 miles.How many miles does Maria run

    asked by Jaidah
  254. chemistry

    explain why iron is paramagnetic?

    asked by sophie
  255. math

    solve the following system of equations 8x+9y= -19 -3x+7y= -24 x= y=

    asked by mace
  256. math

    use only a compass and a straightedge to construct a segment congruent to CB and angle congruent to U ACB

    asked by susan
  257. chemistry

    which alkali metal form superoxidess?(2)explain why rubidium has a short life?

    asked by sophie
  258. Math

    Charles has 34 coins 1/3 of them are pennies 1/4 is nickles 1/6 is dimes and the rest of them are quarters. Tell how many of each coin Charles found. Draw all coins and label them

    asked by MoM
  259. algebra

    How many reachable numbers are there between 1 and 1000?

    asked by Anonymous...please help!
  260. history

    What is the meaning of virginia's state nickname.

    asked by Einstine
  261. Calculus

    With is the integral of (9(sinx+cosx))/sin(2x)

    asked by Em
  262. math

    f(x)=(ãx+9x)(x^3/2-x) Evaluate f '(x) at the value x = 4. f '(4) = ??

    asked by Kimberly
  263. Pre-Calculus

    Find the inverse of the following quadratic equation. Hint: Complete the square first. y= x²+14x+50

    asked by AwesomeGuy
  264. percentage

    if p is 50% more than q,then q is what percent less than p?

    asked by noman
  265. Math

    f(x)=√(x)(x-4) find the critical number

    asked by jonh
  266. math

    use the substitution to solve the system -5x+24=27 y=2x+11 x= y=

    asked by hello
  267. Chemistry

    if in a solution the [H+]= 1x10-5M, then the [OH-] equals the same. true or false

    asked by Anonymous
  268. Geometry

    Two of the heights of a triangle are 63 and 147 . Given that the third height is also an integer, what is the maximum possible value for the third height?

    asked by John
  269. Pre-Calculus

    Find the inverse of the following quadratic equation. Hint: Complete the square first. y= 2x²+16x-5

    asked by AwesomeGuy
  270. Geometry

    ABCD is a convex quadrilateral satisfying AB=BC=CD, AD=DB and \angle BAD = 75^\circ. What is the measure of \angle BCD?

    asked by John
  271. chemistry

    what is equillibrium?

    asked by faraz
  272. Law

    Where can I find info on Professional Competence and Training in counseling?

    asked by dora
  273. LA

    Who said " give me a pencil or give me death"?

    asked by Jay
  274. math

    Find the slope m and an equation of the tangent line to the graph of the function f at the specified point. F(X)=x^2/x+6;(3,1) m = ?? y = ??

    asked by Kimberly
  275. English

    Are compound subjects two or more sentences combined with and, or, nor?

    asked by Jerald
  276. Math

    Find the derivative of the given function. f(x)=(ãx+9x)(x^3/2-x) f '(x) = ?? Evaluate f '(x) at the value x = 4. f '(4) = ??

    asked by Kimberly
  277. Calculus

    Evaluate \displaystyle \lim_{x \to 0} \frac{e^{44x} - 1}{x^2+2x}.

    asked by John
  278. Algebra

    Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole,

    asked by John
  279. general chemistry

    Calculate the molarity of each of the following solutions. 12.03mg KI in 107.6mL of solution.Express your answer using four significant figures.

    asked by Pat
  280. Algebra

    Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole,

    asked by John
  281. Algebra

    Out on my street, there are a certain number of pigeons sitting on telephone poles. If there were exactly 2 pigeons sitting on each telephone pole, then 1 pigeon would have no space to sit on. If there were exactly 3 pigeons sitting on each telephone pole,

    asked by John
  282. physics

    A 36 cm long copper wire carries a current of 6.0 A and weighs 0.45 N. A certain magnetic field is strong enough to balance the force of gravity on the wire. What is the strength of the magnetic field?

    asked by Anonymous
  283. Trigonometry

    \sqrt{i} in polar form can be written as r(\cos \theta + i \sin \theta), where r is a real number and 0 \leq \theta \leq \frac{\pi}{2}. What is the measure of \theta (in degrees)?

    asked by John
  284. Physics

    A 4kg mass is pushed with a constant force for 1m then off the edge of the table and lands 7m from the edge of the table. a) What was the force pushing on the mass? b) What is the resultant velocity?

    asked by Emma
  285. algebra

    N= 0.03x - 58.91

    asked by annoymous
  286. algebra

    The number N of state and federal inmates in millions during year x, where x>2002 can be approximated by the following formula N= 0.03x-58.91 Determine the year in which there were 1.3 million inmates. It was in the year_______

    asked by annoymous
  287. Geometry

    How many perfect squares less than 1000 end with the digit 6?

    asked by John
  288. MA111

    lim x!0 k + cosmx x2 = −4 . FIND M AND X?

    asked by DON
  289. Math

    The old 30-question AHSME was graded as follows: Students were awarded 5 points for a correct answer, 0 points for a wrong answer, and 2 points if left blank. The maximum score was 150, and the minimum score was 0. Find all integer scores between these

    asked by Morgan
  290. help plsss

    A bucket contains 8m^3 of water. Using two smaller buckets of 3m^3 and 5m^3 respectively. How will you manipulate accurately so that only 4m^3 is left in d biggest bucket?

    asked by me
  291. maths help plsss

    A bucket contains 8m^3 of water. Using two smaller buckets of 3m^3 and 5m^3 respectively. How will you manipulate accurately so that only 4m^3 is left in d biggest bucket?

    asked by me
  292. Calculus

    square root of (12), square root of (12 + square root of (12)), square root of (12+ square root of (12+ square root of (12))) Write a recursion formaula for an(subcription), n greater than or equal to 2.

    asked by Ashley
  293. Lang. Arts

    Rewrite sentence and place commas where necessary. Yes skateboarding is not only a sport but a science. I wrote: Yes, skateboarding is not only a sport, but a science. I was wrong...can you please help me by correcting.

    asked by Cassie
  294. physics

    . A block weighing 50 lbs is pulled horizontally w/ constant speed, if the coefficient friction between the surfaces in contact is 0.25, how much heat is generated by friction if the body moves a distance of 40 ft

    asked by SOPHIA
  295. English

    Is fill in the blank A _______ is a character that has qualities that represent a group instead of the individual character

    asked by Brittany Wynn
  296. unkown

    How many people have 91% of vitiamans?

    asked by mateo
  297. math

    15 - (2 x 2) x 3

    asked by Ryan
  298. Chemistry

    Mercury dissolves in concentrated nitric acid, with the evolution of a reddish-brown gas, just as in the reaction shown in figure 5.4 on page 188 for copper. The oxidation state of the mercury after reaction is +2. Write a balanced net ionic equation for

    asked by Sophie
  299. Math

    I don't know what 4r=96 means. Also I don't know what 51=3n means!😰😁😱😨📝HELP! It's due tomorrow

    asked by Grace
  300. math

    what is the value of 3^0+3^-2

    asked by tracy
  301. English

    Circle the verb that agrees with the subject of each sentence below 1.Black and white (is are) my favorite color combination. is 2.The trees and shrubs (look looks) nice today look 3.Place mats or a tablecloth (go goes) in the picnic basket 4.Trucks and

    asked by Jerald
  302. compound interest

    1. If you were to place $15,000 in the bank at 3% interest, how much would you have in the bank after one year if the interest were compounded quarterly?

    asked by jason
  303. Science

    how would tides be different if the moon revolves as fast as the earth rotate

    asked by Sophie
  304. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #4: What is the increase in thermal energy to a 2000 kg

    asked by Anna
  305. English

    Circle the verb that agrees with the subject of each sentence below 1.Neither my coat nor my dresses (is are) in the suitcase. are 2.Dell and Amy really (like likes) science like 3.The St. Bernard and the terrier (play plays) together play 4.Either the

    asked by Jerald
  306. Physics

    What does a simple pendulum travel through at the lowest point during its period?

    asked by Maiah
  307. Physics

    A 1.2kg box on a table slides through a displacement of d is equals to 2m a frictional force fx =0.5N Wat is the initial speed of the box

    asked by Anonymous
  308. Pre-Algebra

    How do you Factor t^2 + 4z^2

    asked by Thea
  309. Math

    How do I factor y^3 + y^2 -4y -4

    asked by Valerie
  310. geometry

    When v mark 4 points on a paper how many line segments are formed ....

    asked by kajal
  311. chemistry

    A gas with the smell of rotten eggs is evolved with dilute sulphuric acid is added to a simple of salt.the gas evolved could turn?

    asked by nanayeboahford
  312. Life Orientation

    What unethical behaviour is taking place?

    asked by Judith
  313. math

    the problem is 0 < less then or equal to 2x-4

    asked by help
  314. math

    2x^2+7x+3/x^2-2x-15

    asked by bria
  315. math

    what is 5x + 2>3x + 10

    asked by lizzie
  316. Fundamentals of math

    solve the system by substitution.. -3x-5y=-17 4x=y-8

    asked by Laura
  317. Algebra

    Simplify (x^-6)-3

    asked by Lea
  318. algebra

    Simplify (uv)0 ______ (u3 v)2

    asked by Lea
  319. math

    identify all real roots of x^3-9x^2+16x-8=0

    asked by alicia
  320. Statistics

    In the quiz in Exercises 1 and 2, the grading scheme is as follows: each right answer is awarded 5 points, and 1 point is taken off for each wrong answer. Recall that the quiz consists of 10 questions, and that in the class, the average number of right

    asked by Daniel
  321. algebra

    multiply using FOIL and identify values of a, b, & c. (5x +5)(6x - 8)

    asked by Lea
  322. Statistics

    The average weight of a group of people is 156 pounds and the SD is 25 pounds. A statistician wants to transform the weights so that the transformed weights have an average of 100 pounds and an SD of 10 pounds. Fill in the blanks; both blanks must be

    asked by James
  323. algebra

    Simplify 3x(x^2 + 6x - 8)

    asked by Lea
  324. maths

    for what value of k does each equaton have: 6x^2+4 kx+(k+3)=0

    asked by sahil