Questions Asked on
November 29, 2012

  1. math

    1) Write the fraction 5/9 as a percent.Round to the nearest hundredth of a percent where necessary. 2)Write the decimal 0.079 as a percent. 3)In the country of Sweden, a bill becomes a law only if 38/50 of the senators approve it. What percentage 50 is

    asked by luz, please answer =)
  2. Please help with 5 math questions

    1. 7r – 7 = 2r + 18 r = –5 r = 5 r = 2.2 r = 1.2 2. 2x + 12 = 18 – x x = 3 x = 10 x = 6 x = 2 3. 8x – 3 = 15x + 18 x = –3 x = 3 x = 2.1 x = .9 4. 6y – 6 = 4y + 16 y = 2.2 y = –2.2 y = 11 y = 5 5. 3(x – 4) = 5(x + 2) x = 11 x = –11 x = 1 x

    asked by Anonymous
  3. trigonometry

    The sprockets and chain of a bicycle are shown in the figure. The pedal sprocket has a radius of 4 in., the wheel sprocket a radius of 2 in., and the wheel a radius of 13 in. The cyclist pedals at 45 rpm. (a) Find the angular speed of the wheel sprocket.

    asked by monic
  4. Math

    Which fractions are equivalent to 25/45 ?

    asked by Bell
  5. Math

    Harry rides his bike 25 3/8 miles. Karen rides her bike 25 2/5 miles. Who rides farther? Explain?

    asked by Bell
  6. Chemistry

    Consider an ionic compound, MX2, composed of generic metal M and generic halogen X. The enthalphy of formation of MX2= -891. The enthalphy of sublimation of M= 141. The first and second ionization energies of M are 605 and 1392. The electron affinity of X=

    asked by Garcia
  7. Math

    An “A” train leaves a subway station every 12 minutes. An “E” train leaves every 9 minutes. If both trains just left the station on parallel tracks, when will both leave the station together again?

    asked by Bell
  8. math

    5. Find the length of the hypotenuse of a right triangle with legs of 20 cm and 21 cm. 41 cm 841 cm 6 cm 29 cm 6. The length of the hypotenuse of a right triangle is 15 cm. The length of one leg is 9 cm. Find the length of the other leg. 6 cm 12 cm 17 cm

    asked by hi, help hard questions
  9. math

    72 is what percent of 480? Write and solve an equation to solve the problem

    asked by alex
  10. math

    a crate contains apples, pears, and oranges.There are 184 apples and pears and 248 apples and oranges. there are 3 times as many oranges as pears. how many apples are in the crate? How do I show my work to solve this problem using Singapore math - Math in

    asked by Braden
  11. Chemistry

    Hi everyone, I have been trying to figure out this titration equation all day and for some reason I am stumped. Here is the question in full: Potassium hydrogen phthalate, KHP, can be obtained in high purity and is used to determine the concentrations of

    asked by jo
  12. Math

    Compare the pair of numbers. Use . 3/4[_]33/40

    asked by Bell
  13. math

    Estimate a 15% tip on a taxi ride that costs $23.25.

    asked by alex
  14. trig

    A plane has an airspeed of 200 miles per hour and a heading of 28.0°. The ground speed of the plane is 207 miles per hour, and its true course is in the direction of 38.0°. Find the speed and direction of the air currents, assuming they are constants.

    asked by bryan
  15. Physics

    A golfer is enjoying a day out on the links. What maximum height will a 323.5 m drive reach if it is launched at an angle of 21.0◦ to the ground? The acceleration due to gravity is 9.81 m/s^2. Answer in units of m

    asked by Big Poppa Smurf
  16. physics

    An 85.7 N box of clothes is pulled 26.2 m up a 31.7 ◦ ramp by a force of 112 N that points along the ramp. The acceleration of gravity is 9.81 m/s 2 . If the coefficient of kinetic friction between the box and ramp is 0.24, calculate the change in the

    asked by Anonymous
  17. Math

    A truck’s engine needs 3one over four gallons of oil for an oil change. How many quarts of oil are needed? (Hint: 1 quart = one over four gallon)

    asked by Bell
  18. trig

    A tree on a hillside casts a shadow c ft down the hill. If the angle of inclination of the hillside is b to the horizontal and the angle of elevation of the sun is a, find the height of the tree. Assume a = 48°, b = 18° c = 235 ft. (Round your answer to

    asked by Anonymous
  19. Chemistry

    At T = 25 degrees Celsius, the reaction No2 2NO +O2 has an equilibrium constant K=5.0*10^-13. Suppose the container is filled with NO2 at an initial pressure of 0.25 atm. Calculate the partial pressure of NO at equilibrium

    asked by Paul
  20. chemstry

    calculate the amount of energy required to convert 55.0g of ice at -10.0°c into steam at 125°c?

    asked by celeste
  21. AP Physics B

    A 63.6-kg bungee jumper is standing on a tall platform (h0 = 50.6 m). The bungee cord has an unstrained length of L0 = 9.54 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.8 N/m. The jumper falls from rest, and it is

    asked by Alexis
  22. Calculus

    *Optimization problem* I'm okay at some optimization problems, but this one has me stumped. You work for a company that manufactures circular cylindrical steel drums that can be used to transport various petroleum products. Your assignment is to determine

    asked by Zared
  23. Physics

    A bomber flies horizontally with a speed of 431 m/s relative to the ground. The altitude of the bomber is 2630 m and the terrain is level. Neglect the effects of air resistance. The acceleration of gravity is 9.8 m/s^2. A) How far from the point

    asked by Big Poppa Smurf
  24. Math

    If a rectangle measures 8 inches by 23 inches, what is the area

    asked by Alinna
  25. physics

    A block initially at rest is allowed to slide down a frictionless ramp and attains a speed v at the bottom. To achieve a speed 3.9 v at the bottom, how many times as high h2 h1 must a new ramp be?

    asked by Anonymous
  26. Geometry

    Triangle ABC is a Right Triangle If AB=3 and AC=7 find BC. Leave your Answer in Simplest Radical Form.

    asked by Anonymous
  27. chemistry

    Normal glucose levels in the blood are from 70 to 110 mg glucose per 100 mL of blood. I the level falls too low, there can be brain damage. If a person has a glucose level of 108 mg/100 mL, what is the total mass of glucose in grams in 5.10L of blood?

    asked by lisa
  28. Chemistry

    Astronomers have detected hydrogen atoms in interstellar space in the n=732 energy level. Suppose an atom in this excited state emits of a photon and undergoes a transition from n=732 to n=632. How much energy does the atom lose as a result of this

    asked by Carice
  29. Math

    Use prime factorization to find the LCM of 30 and 40.

    asked by Bell
  30. 7th grade social studies Ms. Sue please

    1. While Earth's orbit around the sun takes roughly 365 days, a single rotation of Earth takes about (1 point) 8 hours. 24 hours. 1 month. 12 months. 2. During the summer solstice in the United States, the ______ _______ is tilted farthest toward the sun.

    asked by Delilah
  31. physics

    A skater of mass 85.5 kg initially moves in a straight line at a speed of 4.70 m/s. The skater approaches a child of mass 36.5 kg, whom he lifts on his shoulders. Assuming there are no external horizontal forces, what is the skater's final velocity?

    asked by Anthony
  32. physics

    Two cars approach an ice-covered intersection. One car, of mass 1.22 103 kg, is initially traveling north at 10.6 m/s. The other car, of mass 1.69 103 kg, is initially traveling east at 10.6 m/s. The cars reach the intersection at the same instant,

    asked by Anthony
  33. physics

    why do you find the same wavelengths and colors on each side of the central maxima?

    asked by opp
  34. chemistry

    Its general formula is BaTi(SiO3)3.If a 15-carat stone were pure BaTi(SiO3)3, how many moles of silicon would it contain? (There are exactly 5 carats per gram.)

    asked by linda
  35. english

    Add punctuation to the following excerpt. Writing under the name of Diedrich Knickerbocker Washington Irving aimed his potent satire at as diverse topics as political rivals such as Thomas Jefferson to the very ideal of looking back on the past

    asked by desmond
  36. physics

    a tennis ball is thrown vertically upward with an initial velocity of +8.0 m/s a) what is the velocity of the ball when it returns to its starting point? b) how long is the ball in the air? c) how high does the ball reach?

    asked by Isis
  37. physics

    Two blocks move along a linear path on a nearly frictionless air track. One block, of mass 0.104 kg, initially moves to the right at a speed of 4.70 m/s, while the second block, of mass 0.208 kg, is initially to the left of the first block and moving to

    asked by Anthony
  38. math

    A paperweight containing liquid is made up of a cone and a cylinder. The radius of the cone is 3cm with height of 4cm. The diameter is 20cm and height is 8cm. 1. Calculate the total volume of the cone and cylinder when it si empty, leaving your answer in

    asked by Lindsay
  39. math please help imedietely

    The ice-cream cone wrapper is having the flat side on the top and the point at the bottom. Draw the shape of this ice-cream cone wrapper when it is slit from the edge to the center point and flattend out. Please tell answer and explain

    asked by Anonymous
  40. Chemistry - Melting Ice

    The heat of fusion of ice is 6.00 kJ/mol. Find the number of photons of wavelength = 6.78×10^−6 m that must be absorbed to melt 6.80 g of ice.

    asked by Jayden
  41. math

    name the operation needed to solve at the airport 72 people are waiting to board 9 different planes. If an equal number of people board each plain, how many people get on each plane?

    asked by Gio
  42. math

    A tree on a hillside casts a shadow 200 ft down the hill. If the angle of inclination of the hillside is 23 to the horizontal and the angle of elevation of the sun is 54, find the height of the tree. Please round the answer to the nearest integer.

    asked by amaa
  43. English

    In Romeo and Juliet, what is ironic about Lord Capulet's praise of Friar Lawrence in Act 4 Scene 2?

    asked by Emily
  44. Math

    Write the fraction in simplest form. 10/22

    asked by Bell
  45. Math

    Order the numbers from least to greatest. 3/8, 19/24, 2/3.

    asked by Bell
  46. PHYSICS DUE SOON

    In each cycle of its operation, a heat engine expels 6,100 J of energy and performs 1,300 J of mechanical work. (a) How much thermal energy must be added to the engine in each cycle?_____J (b) Find the thermal efficiency of the engine.____%

    asked by Ame
  47. Physics

    a net force of 3.50 N acts on a 2.75 kg object. what is the acceleration of the object?

    asked by Janet
  48. english

    Im not really good at English so I need some help with this punctuation Add punctuation to the following excerpt. Writing under the name of Diedrich Knickerbocker Washington Irving aimed his potent satire at as diverse topics as political rivals such as

    asked by desmond
  49. survey of math

    A license plate is to consist of 2 letters followed by 3 digits. Determine the number of different license plates possible if repetition of letters and numbers is not permitted?

    asked by anjanette
  50. science

    Help fast please!!!!!!!!!!!!!!! Which of these is the best example of translational motion? A. a coin spinning on a desk B. a leaf blowing across the field C. a car in a parking lot with its engine running D. a ballerina standing on one foot

    asked by miya
  51. Physics

    A 15.0-kg block rests on a horizontal table and is attached to one end of a massless, horizontal spring. By pulling horizontally on the other end of the spring, someone causes the block to accelerate uniformly and reach a speed of 5.00 m/s in 0.460 s. In

    asked by Elizabeth
  52. Chemistry

    At T = 25 degrees Celsius, the reaction No2 2NO +O2 has an equilibrium constant K=5.0*10^-13. Suppose the container is filled with NO2 at an initial pressure of 0.25 atm. Calculate the partial pressure of NO at equilibrium

    asked by Paul
  53. chemistry

    N2O5 dissolved in CCl4 decomposes to give N2O4 and O2. The reaction is first order with a half-life of 1234 seconds. How long will it take, in seconds, for the concentration of N2O5 to fall to 1.1% of its initial value?

    asked by sveta
  54. physics

    A 0.26 kg rock is thrown vertically upward from the top of a cliff that is 32 m high. When it hits the ground at the base of the cliff the rock has a speed of 28 m/s. (a) Assuming that air resistance can be ignored, find the initial speed of the rock. (b)

    asked by jorge
  55. physics

    Rank, from smallest to largest, the pressures in the tank of motionless fluid shown in the figure.

    asked by Anonymous
  56. Physics

    A kickoff sends a football with an initial velocity of 25 m/s at an angle of 50 degrees above the horizontal. a) find the x and y components of the velocity b) find the time the ball is in the air c) find the horizontal distance the ball travels before

    asked by Annie
  57. Physics

    What is the force on two point charges of 10-6 C that are 20 cm apart?

    asked by Johnny
  58. Linear equation

    Graph each equation by making a table. Y = 4

    asked by Ashley
  59. Math

    what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)

    asked by Will
  60. math

    mr.hemley stands next to the Illionis centennial monument at logan square chicago and casts a shadow that is 18 ft long. The shadow of the monument is 204 ft tall, how tall is the monument?

    asked by lanessa
  61. Chemistry

    A propane stove burned 470. grams of propane and produced 625 milliliters of water. What is the % yield? C₃H₈+5O₂ -> 3CO₂+ 4H₂O

    asked by Josh
  62. chemistry

    Mg + Au+ -> Mg2+ + Au what is the oxidation and reduction half reactions

    asked by jalisa
  63. math

    Jessica bought a computer for $325 and had to pay 6% sales tax. What was the total cost of Jessica’s computer?

    asked by alex
  64. PHYSICS DUE SOON

    A 95.1-g ice cube is initially at 0.0°C. (b) What is the change in entropy of the environment in this process? ___________J/kg

    asked by Ame
  65. physics

    In a running event, a sprinter does 5.5 105 J of work and her internal energy decreases by 8.8 105 J. Determine the heat transferred between her body and surroundings during this event. ________ J

    asked by amela
  66. Chemistry

    Metals yield at a stress much lower than those calculated on the basis of their bond strength alone. This is explained by the presence of defects. Identify the principal defects responsible for this observation. A)Grain Boundaries B)Interstitial Metal

    asked by Odesa
  67. 6th grade math

    Having problems with surface area of a triangular prism. I know the formula is ab + (S1 + S2 + S2)h, however I can't tell what all 3 sides of the trianle are from the picture. The triangular face shows a height of 50 in and a base of 20 in. No other

    asked by Brandi
  68. Physics

    A small ball is attached to one end of a spring that has an unstrained length of 0.202 m. The spring is held by the other end, and the ball is whirled around in a horizontal circle at a speed of 3.18 m/s. The spring remains nearly parallel to the ground

    asked by Elizabeth
  69. Math (Calculus)

    A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.3 cm/min. At what rate is the volume of the snowball decreasing when the diameter is 10 cm. Can someone help & explain how to solve this question? Please.

    asked by Alex
  70. Physics

    A projectile is fired straight upward at 167 m/s. How fast is it moving at the instant it reaches the top of its trajectory? Answer in units of m/s How fast is it moving at the instant it reaches the top of its trajectory if the projectile is fired

    asked by Big Poppa Smurf
  71. Physics

    bullet traveling 8.o*10^2 (800) meters per second horizontally hits a target 180 m away. how far does the bullet fall before it hits the target?

    asked by Taylorr
  72. Math

    Harry rides his bike 25 3/8 miles. Karen rides her bike 25 2/5 miles. Who rides farther?

    asked by Bell
  73. math

    Natalie bought 1 1/4lb. of candy at $4.20 per pound.How much did Natalie pay for the candy? Is the answer $5.70?

    asked by Math Geek
  74. Physics

    Estimate how many molecules of air are in each 2.5 L breath you take that were also in the last breath Einstein took (assumed to be the same volume). (Hint: Assume the atmosphere is about 11 km high and of constant density. Take the temperature of the air

    asked by Anonymous
  75. physics

    an eagle flying in a horizontal path drops a twig from a height of 8.2 m. The twig travels 12 m horizontally before it hits the ground. What was the eagle's initial speed?

    asked by Isis
  76. Chemistry

    Administratium bromide (AdBr) decomposes readily at temperatures exceeding 37°C. The figure below shows how the rate of reaction varies with the concentration of AdBr. The rate, r, is in units of M s-1 and the concentration of AdBr, c, is in units of M

    asked by Odesa
  77. Math

    Alfred Juarez paid off a 15,000 car lon over3 years with monthly payments of $ 487.54 each. Find the finance charge and the APR

    asked by Andrzej
  78. Physics

    a 254-kg crate is pushed horizontally with a force of 740 N. if the coefficient of friction is .20, calculate the acceleration of the crate

    asked by Annie
  79. Physics Can you please get me started

    In a running event, a sprinter does 5.5 105 J of work and her internal energy decreases by 8.8 105 J. Determine the heat transferred between her body and surroundings during this event. ________ J

    asked by amela
  80. Math

    A hot air balloon is rising vertically. From a point on level ground 125 ft. from a point on ground level directly under the balloon the angle of elevation of the balloon changes from 19.2 to 31.7. How far does the balloon rise during this period? Draw a

    asked by Thalia
  81. chemistry

    While you are at rest, your brain gets about 15% by volume of your blood. If your body contains 5.2 L of blood, how many liters of blood are in your brain at rest? and how many quarts?

    asked by carol
  82. Physics

    bullet traveling 8.o*10^2 (800) meters per second horizontally hits a target 180 m away. how far does the bullet fall before it hits the target?

    asked by Taylorr
  83. Spanish III Part 2

    Write the correct conjugation of the verb in the preterite tense. 1. abrir - yo 2. escribir - nosotros 3. hablar - tú 4. escuchar - vosotros 5. cantar - ella 6. bailar - ellos 7. contestar - yo 8. limpiar - nosotros 9. correr - tú 10. montar - vosotros

    asked by Cora
  84. physics

    A liquid of density 1354 kg/m^3 flows with speed 2.45 m/s into a pipe of diameter 0.29 m. The diameter of the pipe decreases to 0.05 m at its exit end. The exit end of the pipe is 7.82 m lower than the entrance of the pipe, and the pressure at the exit of

    asked by michelle
  85. Linear equation

    Graph each equation by making a table. Y = 4

    asked by Ashley
  86. algebra

    Determine the principal that must be invested at 7% compounded monthly, so that $500,000 will be available for retirement in 49 years. Answer in units of dollars

    asked by nicole
  87. biology

    why would a One serving of particular food that contains 16 g of carbohydrates, 2 g of proteins, and 10 g of fats hav 300 calories?

    asked by Samantha
  88. physics

    Suppose the roller coaster in Fig. 6-41 (h1 = 38 m, h2 = 11 m, h3 = 25) passes point 1 with a speed of 1.60 m/s. If the average force of friction is equal to one sixth of its weight, with what speed will it reach point 2? The distance traveled is 45.0 m.

    asked by bob
  89. physics

    An athlete whirls a 7.54 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.51 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain.

    asked by Anonymous
  90. Physics, Please Help

    A 2130-kg space station orbits Earth at an altitude of 455 km. Find the magnitude of the force with which the space station attracts Earth. The mass and mean radius of Earth are 5.98 × 1024 kg and 6370 km, respectively.

    asked by Mike
  91. Chemistry

    An unknown solution may contain one of the ions of the pair below. Devise a test which allows you to distinguish between the ions. Cu2+(aq) and Co2+ (aq)

    asked by Charlie
  92. physics

    An object of mass 3.06 kg is released from rest and drops 1.75 m to the floor. The collision is completely inelastic. How much kinetic energy is lost during the collision?

    asked by Anthony
  93. Physics

    A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 33° C from 181° C, its net radiant power decreases to 13.3 W. What was the net radiant power of the baking dish when it was first removed from the oven?

    asked by Sam
  94. science

    HELP FAST!!!!!!!!!!!!!!!! If you see that a hot-air balloon is rising above the top of a hill, what is the top of the hill called? A. delta point B. distance system C. coordinate system D. reference point

    asked by LILY
  95. Physics

    A paintball is fired from a gun horizontally with a speed of 110 m/s. If it hits a point 14 cm below the target: A) What is the total time the paintball is in the air? B) How far is the target from the paintball?

    asked by Stefanie
  96. Psychology

    what is the opposite of background stressor?

    asked by Zion
  97. AAlgebra 1

    Graph each equation by making a table. Y = 4

    asked by Ashley
  98. physics

    a 2m long string of mass 10g is clamped at boths ends.the tension in the string is 150N.the string is plucked so that it oscillate.what is the wavelength and frequency of the resulting wave it is produce a standing wave with two antinodes?

    asked by IE
  99. math

    The demand function for a certain brand of CD is given by the following equation where p is the wholesale unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. P=-0.01X^2-0.1X+6 Determine the consumers' surplus if

    asked by britney
  100. basic math

    An education fund allocates RM10,000 to help 100 students from form three, form five and form six in a school. Each form three student receives RM80, each form five student receives RM120 and each form six student receives RM160. The number of form three

    asked by kchik
  101. chemistry

    What is the acid dissociation constant for a 0.010 M solution of the unkown acid HX that has a pH of 2.70 at equilibrium? I know the answer but not how to get it, please help? Thanks in advance.

    asked by ciaociao
  102. Physics

    A 0.54 kg rock is projected from the edge of the top of a building with an initial velocity of 13.8 m/s at an angle 59◦ above the horizontal.Due to gravity, the rock strikes the ground at a horizontal distance of 20.3 m from the base of the building.How

    asked by Big Poppa Smurf
  103. Physics

    A science student riding on a flatcar of a train moving at a constant speed of a 9.70 m/s throws a ball toward the caboose along a path that the student judges as making an initial angle of 45.0◦ with the horizontal. The teacher, who is standing on the

    asked by Big Poppa Smurf
  104. math

    6. The length of the hypotenuse of a right triangle is 15 cm. The length of one leg is 9 cm. Find the length of the other leg. 6 cm 12 cm 17 cm 144 cm

    asked by hard questions PLZZ answer!
  105. science

    Which example below provides a complete scientific description of an object in motion? A. The marble changed position quickly. B. The car traveled north. C. The marble moved 30 cm north in 6 seconds. D. The ball rolled 20 cm in 5 seconds.

    asked by bema
  106. Math

    Write 3 1/3 as an improper fraction.

    asked by Bell
  107. QBASIC, Computers

    The following is a list of salaries of the six employees in a certain company: Name Salary T. Angel $43,000 F. Smith $31,000 K. Johnston $22,000 P. Miner $18,000 C. Altman $27,000 A. Lu $19,000 Read a single dimension array for name and another array for

    asked by Jason
  108. earth

    i have an acrostic poem i have to do for school on describing warm and cold fronts, but i can't think of some of the words

    asked by person
  109. physics

    a tennis ball is dropped from the top of 12.2 m tall building. b) how long does it take for the ball to hit he ground? c) what is the velocity of the ball the split second before it hits the ground?

    asked by Isis
  110. Chemisty

    For the following equilibrium; Br2 (g) + Cl2 (g) ⇄ 2BrCl (g) the Kc = 7.00 at 127oC. If 0.450 mol of Br2 (g) and 0.450 mol of Cl2 (g) are introduced into a 3.00 L container at 400 K, what will the equilibrium concentration of BrCl(g) be?

    asked by OVA9000
  111. english

    What are the themes in the short story Clothes by Chitra Divakaruni?

    asked by Aaa
  112. CHEMISTRY

    A 0.02718 mg sample of an unknown compound was found to contain 0.0094 mg of Fe, and 0.0178 mg of Cl. It was also determined that the unknown compound had a molecular weight of 162.10 g/mol. What is the molecular formula for this compound?

    asked by anonymous
  113. PreCalculus

    Suppose that a polynomial function of degree 5 with rational coefficients has the given numbers as zeros. Find the other zero( s): -1, radical 3, 11/3

    asked by Brittany Penman
  114. English

    Read the two independent clauses in each term. Then join them in one sentence using a semicolon and a conjunctive adverb or transitional expression I wanted to go to the game. I had to help out at home I wanted to go to the game; however, I had to help out

    asked by Jerald
  115. Physics

    A boy is standing on a skateboard holding two 5.0 kg bowling balls. Initially they are moving to the left at a speed of 3.0 m/s. At one point the boy throws one ball to the right at 4.0 m/s causing his speed to increase. Before he can slow down, he throws

    asked by Jordan
  116. chemisty

    What is the approximate mass of 2L of C4H10 gas at STP?

    asked by karen
  117. painting

    An artist makes a painting that is 12 feet by 9 feet. He paints a frame around the painting. The frame is 4 inches wide. What is the perimeter of the outside edge of the frame?

    asked by zion
  118. statistics

    Suppose 100 randomly selected customers were asked to rate a particular service they recently had on a scale of 0 to 10. The sample mean rating was found to be 7.3. (Assume the population standard deviation of all ratings in the population of customers is

    asked by Amy
  119. chemistry

    Cisplatin, a drug used in the treatment of certain types of cancer has the molecular formula Pt(NH3)2Cl2. How many moles of compound are in 254.09 grams of the compound?

    asked by Mary
  120. Physics

    Estimate how many molecules of air are in each 2.5 L breath you take that were also in the last breath Einstein took (assumed to be the same volume). (Hint: Assume the atmosphere is about 11 km high and of constant density. Take the temperature of the air

    asked by Anonymous
  121. Chemistry

    N2O5 dissolved in CCl4 decomposes to give N2O4 and O2. The reaction is first order with a half-life of 1234 seconds. How long will it take, in seconds, for the concentration of N2O5 to fall to 1.1% of its initial value?

    asked by Odesa
  122. Chemistry

    H6P7: Young's Modulus Rank the following 3 classes of materials in order of increasing typical Young's Modulus: metals such as copper, plastics such as HDPE (high density polyethelene), and ceramics such as alumina (Al2O3). Do not look up the values of

    asked by Odesa
  123. Chemistry

    H6P8: Elongation A steel cable 10 m long is pulled in tension with a stress of 350 MPa. Assume that the Young's modulus of the steel cable is about 200 GPa. If only elastic deformation occurs, what is the resultant elongation in cm?

    asked by Odesa
  124. CHEMISTRY HWK MAKES NO SENSE

    How many grams of C are required to make 464.99 grams of this compound? compound= C3H8

    asked by HELP
  125. American History

    true or false The Great Migration was a large-scale movement of hundreds of thousands of southern African Americans to Weswtern farms.

    asked by Anna
  126. math

    (1) 9.6 dividedby 1.2=8 (2) 57.8 divided by 3.4= 17 (3) 2.3 divided by 21.643= 941 (4) 0.51 dividd by 0.459= 9 (5) 0.16 divided by 3.8= 23 remainder 12 (6) 0.78 divided by 15.6= (7) 0.048 dividedby 7.2=150.0 help Ms. Sue

    asked by Casey
  127. physics

    An athlete whirls a 7.54 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.51 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain.

    asked by Anonymous
  128. physics

    a 2m long string of mass 10g is clamped at boths ends.the tension in the string is 150N.the string is plucked so that it oscillate.what is the wavelength and frequency of the resulting wave it is produce a standing wave with two antinodes?

    asked by IE
  129. physics

    An athlete whirls a 7.54 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.51 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain.

    asked by Anonymous
  130. Two Dimensional elastic

    A 25000 kg bowling ball moving at 40 m/s on a path angled at 17° hits a 10000 kg bowling ball moving at 25 m/s on a path angled at 60°, causing the lighter ball to be deflected off to an 80° angle. Assuming this is a two-dimensional perfectly elastic

    asked by Scoop
  131. PHYSICS DUE SOON

    In a running event, a sprinter does 5.5 105 J of work and her internal energy decreases by 8.8 105 J. (a) Determine the heat transferred between her body and surroundings during this event. _____J

    asked by Ame
  132. PHYSICS PLEASE HELP ME

    A particle with an initial linear momentum of 3.44 kg · m/s directed along the positive x-axis collides with a second particle, which has an initial linear momentum of 6.88 kg · m/s, directed along the positive y-axis. The final momentum of the first

    asked by Anthony
  133. math

    Yosuf has three grey socks and four blue socks in his sock drawer. He pulls out a pair of socks in the dark. (a) What is the total number of possible outcomes? (b) What is the probability that the pair of socks selected is grey? (c) What is the probability

    asked by A
  134. chem

    A 0.01020 mg sample of an unknown compound was found to contain 0.0084 mg of C, and 0.0018 mg of H. It was also determined that the unknown compound had a molecular weight of 58.12 g/mol. What is the molecular formula for this compound?

    asked by HELP
  135. math

    you deposit $2200 in an account that pays 3% interest, after 15 years you withdraw, what is the balance if the interest is compounded continuously

    asked by Michelle
  136. Science

    d) the density of gasoline is 0.703g/ml

    asked by Teezee
  137. chemistry

    The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The reaction is second order in AhF. The value of the rate constant is 6.091×10−3 M−1s−1. What is the initial rate of reaction in a reactor

    asked by sveta
  138. chemistry

    A steel cable 10 m long is pulled in tension with a stress of 350 MPa. Assume that the Young's modulus of the steel cable is about 200 GPa. If only elastic deformation occurs, what is the resultant elongation in cm?

    asked by sveta
  139. Physics

    12 volts is applied across a 4 ohm resistor. How much power is dissipated by the resistor?

    asked by Hans
  140. english

    Marion claims her duty is to (1 point) a.Helen b.the children c.Lincoln d.France

    asked by LaShondra
  141. chemistry

    what mass of aluminum hydroxide needs to be consumed to neutralize 1.25L of stomach acid (HCl). Stomach acid has a pH of 2.2

    asked by kenny
  142. English

    1. They are talking about what they want to be in the future. 2. They are talking about their future job. (Are bothe the same in meaning? Do we have to use 'job' or 'jobs'?)

    asked by rfvv
  143. 7th grade social studies

    What are the pros and cons to democracy? Thank you.

    asked by Donnie
  144. Algebra

    A rope 116 inches is cut into three pieces.The middle-sized piece is 10 inches shorter than twice the shortest piece.The longest piece is 5/3 as long as the shortest piece.What is the length of the shortest piece?

    asked by Reshanee F
  145. Math

    In a group of 24 people 6 are under age 12. 5 are from ages 12 to 19 and 13 are over age 19. If you randomly selected 1 of the group members to sit next to what is the probability hat he will be under 12? A.1 in 24 B.1 in 12 C.1 in 7 D.1 in 4 D? Kathleen

    asked by Jerald
  146. math

    Suppose an insurance agent offers you a policy that will provide you with a yearly income of $120,000 in 30 years. What is the comparable annual salary today, assuming an inflation rate of 2%?. (Round your answer to the nearest cent.)

    asked by jacque
  147. physics

    a ball is thrown up and reaches a maximum height of 5 m. a) what is the initial velocity of the ball? b) how long does it take for the ball to reach its maximum height? c) what is the final velocity of the ball? if i returns to where it was thrown from?

    asked by Isis
  148. Algebra2

    Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 1. Passes through (3, 2) and is parallel to 2x-y=4 2. Passes through (-1, -1) and is perpendicular to y = 5/2x + 3

    asked by Pablo
  149. Chemistry

    You have a single crystal of 100% pure gold. Identify which of the following defects you would expect to be present at room temperature. Free surface Grain boundaries Vacancies Inclusions Substitutional impurity atoms Interstitial impurity atoms

    asked by Odesa
  150. Chemistry

    The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The reaction is second order in AhF. The value of the rate constant is 4.091×10−3 M−1s−1. What is the initial rate of reaction in a reactor

    asked by Odesa
  151. Math

    Tickets to King Middle School play cost $1 for King students and $3 for everyone else. Rose, a student at King Middle School, went to the play with friends from another school. the group paid a total of $13 for the tickets. How many friends went to see the

    asked by Help
  152. physics

    A crate is sliding down a ramp that is inclined at an angle of 55.4° above the horizontal. The coefficient of kinetic friction between the crate and the ramp surface is 0.501. Find the acceleration of the moving crate.

    asked by Russ
  153. math accounting

    The following information was drawn from the accounting records of Kwon Company as of December 31, 2012, before the temporary accounts had been closed. The Cash balance was $4,000, and Notes Payable amounted to $2,000. The company had revenues of $6,000

    asked by quita
  154. chemistry

    The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The reaction is second order in AhF. The value of the rate constant is 6.091×10−3 M−1s−1. What is the initial rate of reaction in a reactor

    asked by NIK
  155. US Government

    Using a graphic organizer describe the conditions of American citizenship

    asked by Mary
  156. SAT Essay

    Please critique and let me know how it is and what I can improve. Thank you! Assignment: Do you think that ease does not challenge us and that we need adversity to help us discover who we are? Plan and write an essay in which you develop your point of view

    asked by Sanya
  157. Math

    A high school volleyball team has 20 members. If there is an equal number of members from each of the 4 grades, how many students from each grade are on the team?

    asked by Joe
  158. Chemistry

    How do you convert -2.1786*10^-18 J to kj/mole and this is the energy released when an electron is added to hydrogen nucleus. I been trying to figure this out for 30 mins and I still didn't get it please help

    asked by Anonymous
  159. chemistry

    How would you prepare the following solution? a)2% NaCL(w/v) b).35M glucose C)0.12M CaCl2 For b I got glucose 0.35=wt/180=63gm/L, but not sure if I'm doing it right.

    asked by John
  160. science

    speed=frequencyxwavelengthc=f please explain

    asked by j
  161. Adult Development and life Assessment

    What separates the thnking of adolescents from that of younger children? 1. Adolescents can think about various possiblities. 2. Adolescents gain the ability ot think about their senses and movement. 3. Adolescents begin to understand how lanuguage is used

    asked by Regina
  162. Finance

    Giant Motor Company Plant characteristics Lyra Libra Hydra New Lyra New Libra Capacity (in millions) 1 0.8 0.9 1.6 1.8 Fixed cost (in $billions) 2 2 2.6 3.4 3.7 Profit margin (in $1000s) per car (large negative numbers mean the plant can't make that car)

    asked by shankar
  163. Math

    An orange grower has 96 orange trees to plant in her grove. She wants to plant them equally in groups. Each group will have at least 2, but no more than 10. How many different ways can they be divided evenly into these groups?

    asked by Anonymous
  164. college physics

    A hydraulic brake system is shown. The area of the piston in the master cylinder is 6.32 cm^2, and the area of the piston in the brake cylinder is 1.83 cm^2. The coefficient of kinetic friction between the brake shoe and the wheel drum is 0.443. How large

    asked by michelle
  165. Physics

    Suppose a meteor of mass 3.30 1013 kg is moving at 32.0 km/s relative to the center of the Earth and strikes the Earth. Suppose the meteor creates the maximum possible decrease in the angular speed of the Earth by moving toward the west and striking a

    asked by Avery
  166. chemistry

    The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The reaction is second order in AhF. The value of the rate constant is 2.591×10−3 M−1s−1. What is the initial rate of reaction in a reactor

    asked by mike
  167. chemistry

    A steel cable 10 m long is pulled in tension with a stress of 350 MPa. Assume that the Young's modulus of the steel cable is about 200 GPa. If only elastic deformation occurs, what is the resultant elongation in cm?

    asked by sveta
  168. english

    what is the subject and verb phrase of "Go to the snack bar before the movie"

    asked by daniel
  169. chemistry

    Administratium bromide (AdBr) decomposes readily at temperatures exceeding 37°C. The figure below shows how the rate of reaction varies with the concentration of AdBr. The rate, r, is in units of M s-1 and the concentration of AdBr, c, is in units of M

    asked by sveta
  170. CHEMISTRY

    Urbium (Ur) is an upscale element found in big cities. Its oxide (UrO2) is not very stable and decomposes readily at temperatures exceeding 66∘ C. The figure below shows how the rate of reaction varies with the concentration of UrO2 at 75∘ C. The rate

    asked by OLEG
  171. Math

    Match the expression: Subtract 41 from 24 raised to the 6th power; then multiply by 2.

    asked by Kai
  172. number sense

    I am greater than 4 tens and less than 5 tens. I have 9 Inés. What nombre I am?

    asked by nelson
  173. Physics

    A 100 m long wire with a cross-sectional area of 4 mm2 has a resistance of 6 ohms. What is the resistivity of the material of the wire in Ùm?

    asked by Karl
  174. Algebra

    Two joggers are running around an oval track in opposite directions. One jogger runs around the track in 56 seconds. They meet every 24 seconds. How many seconds does it take the second jogger to run around the track?

    asked by Britney
  175. Adult Development and life Assessment

    Lydia behaves appropriately only because she is aware of rewards and punishments. Which level of moral reasoning do her behaviors reflect 1. preconventinal morality 2. conventinal morality 3. unconventinhal morality 4. postconventinal moralty Please help

    asked by Regina
  176. new mexico

    Kara drew a horizontal dashed line through the middle of a trapezoid parallel to the parallel sides.Did she create a line of symmetry?

    asked by jacob
  177. chemistry

    A gas is collected over water at 20 degrees Celsius at a pressure of 752 mm. What is the pressure of the pure gas?

    asked by Jill
  178. Science

    I need help with 2 questions please. 1.What are the three parts of the law of conservation of mass/matter? Do not need the definition but the 3 laws please. Wikipedia and other sites just gives me the definition of the law of conversation. 2. How are

    asked by Please Please Help
  179. Physical science

    A solution that contains a small amount

    asked by Ties a
  180. homework

    How to do roll a dot die

    asked by joselyn
  181. math

    Lyle got paid to today. He used 1/2 of his check to pay bills. He spent 30% of what was left on new clothes, and going out to eat. while he was out, he gave $20 to a salvation army charity santa on the street corner. He put 3/4 of what was left into

    asked by nicole
  182. 7th grade science

    How are cancer cells different from normal, healthy cells? How many different types of cancers are there and what causes them? What is the history of cancer? When was it first identified? What were the first treatments? What types of doctors work with

    asked by Delilah
  183. CHEMISTRY

    how many atoms of C are present in 315.93 g (6.79e24 molec) of CO?

    asked by anonymous
  184. College History

    Would Russia have had a revolution had it avoided the First World War?

    asked by breanna
  185. Adult Development and life Assessment

    Psychologists use theories primarily to 1.Make predictions about behavior 2. Maniplate people and groups 3. create controversies 4. Analyze personality My answer: Make predictions about behavior.

    asked by Regina
  186. science

    What does it mean to be a successful organism? Is bacteria the most successful organisms on earth?

    asked by Katie
  187. Algebra2

    Check? Find the center and radius of the given circle 1. x^2+y^2+10y+21=0 = 5

    asked by Nessa
  188. Absolute Value in Open Sentences

    For the problem |t-4|>t-4 how would you graph it?

    asked by Tracey
  189. US History

    I am doing an altar on founding mothers and my founding mother is Abigail Smith Adams and there are some questions that I need help on! Please help!!!! Why should Abigail Adams be honored? What plant best represent her ideals, character, or accomplishments

    asked by Darcy
  190. science

    what needs to go out of a cell

    asked by Jeremy
  191. Math

    12 over 7 simplified

    asked by D
  192. Chemistry

    H6P6: Urbium Oxide First Part of the Question: Urbium (Ur) is an upscale element found in big cities. Its oxide (UrO2) is not very stable and decomposes readily at temperatures exceeding 66∘ C. The figure below shows how the rate of reaction varies with

    asked by Odesa
  193. Math

    what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)

    asked by Will
  194. Physics

    A 10 ohm resistor is connected in series with a 15 ohm resistor. If this circuit is connected to a 9 volt battery, what will be the resultant current?

    asked by Tim
  195. Chemistry

    What's the linear density of body center cubic (0,1,1)of Molybdenum

    asked by John
  196. math

    You need 1/2 cup of sugar to make a three layer cake. How much sugar would you need for one-layer cake?

    asked by emma
  197. math

    write the first five terms of a geometric sequence whose first term is 100 and whose third term is less than 30

    asked by jr
  198. PHYSIC

    WHEN A MASS IS ATTACHED TO A VERTICAL SPRING,THE SPRING IS STRETCHED A DISTANDE d.THE MASS IS THEN PULLED DOWN FROM THIS POSITION ANDS RELEASED.IT UNDERGOES 50 OSCILLATIONS IN30SECONDS.WHAT WAS THE DISTANCE d?

    asked by IE
  199. Math / Factoring

    Imogene wants to make an open-top box for packing baked goods by cutting equal squares from each corner of an 11 in. by 14 in. piece of cardboard. She figures that for versatility the area of the bottom must be 80 in.^2. What size square should she cut

    asked by Steph
  200. physics

    a 2m long string of mass 10g is clamped at boths ends.the tension in the string is 150N.the string is plucked so that it oscillate.what is the wavelength and frequency of the resulting wave it is produce a standing wave with two antinodes?

    asked by IE
  201. precalc/trig

    olve for the interval [0, 2pi]. cos(x+ pi/4)+cos(x- pi/4)=1

    asked by bob
  202. physics

    An athlete whirls a 7.54 kg hammer tied to the end of a 1.5 m chain in a horizontal circle. The hammer moves at the rate of 1.51 rev/s. What is the centripetal acceleration of the hammer? Assume his arm length is included in the length given for the chain.

    asked by Anonymous
  203. math

    jessica baked 10 dozen cookies.she left 1/8 of the baked cookies home and took the rest to school for the bbake sale.how many cookies did jessica take to school?

    asked by tashnie
  204. physics

    A basketball of mass 0.602 kg is passed to a player of mass 83.0 kg who jumps off the floor while catching the ball. The player's center of mass is instantaneously at rest just before he catches the ball, which is initially moving at a velocity of 11.5

    asked by Anthony
  205. earth science

    if carbon 14 has a half life of 24 days how much would be left of 220 gram sample after 168 days

    asked by lan
  206. Physics

    When you blow on a spoonful of soup to cool it, this is an example of: Natural convection Forced convection Conduction

    asked by StressedStudent
  207. PHYSICS DUE SOON

    A Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J of work?

    asked by Ame
  208. math

    A rectangular pool's depth is 1m at the shallow end and gradually increases to 4m at the deep end. The pool is 32m in length and 12m width. 1. calculate the total surface area (m squared) of the pool. 2. The cost of painting the pool at $5 per square foot.

    asked by Lindsay
  209. ss

    9. Shay's Rebellion in 1787 was an attack on the new federal government. the British government. Canada. Native Americans.

    asked by Anonymous
  210. Algebra2

    Check? 25. f(x)= x^2-1 ; -3, -2, -1, 0, 1, 2 ,3 = f(x); -3^2-1=-10 f(x) ; -2^2-1=-5 f(x) ; -1^2-1=-2 f(x) ; 0^2-1=-1 f(x) ; 1^2-1=0 f(x) ; 2^2-1=3 f(x) ; 3^2-1=8 26. g(x); √(x+1)-2 ; x+-1, 0, 3, 8 g(x) ; √(-1+1)-2=-2 g(x) ; √(0+1)-2=-1 g(x) ;

    asked by Unknown
  211. Algebra

    Each team in a soccer leaguehas played every other team 5 times. Current league standings are: Team A 37 Points Team B 34 Points Team C 28 Points Team D 26 Points Team E 20 Points If a team receives 3 points for a win, 1 point for a tie, and 0 points for a

    asked by Jake
  212. English

    Read each sentence. Find the semicolon mistake. Rewrite the sentence The story has interesting characters, Tom and Luisa, action; and history, a Civil War setting. The story has interesting characters; Tom and Luisa, action, and history; a Civil War

    asked by Jerald
  213. chem

    What is the OH^- concentration of an aqueous solution with H^+ concentration of 10^-4M? Calculate the pOH? pls. help thanks

    asked by Angel Locsin
  214. algebra - absolute value

    i'm doing absolute value in open sentences and then graphing them. how would you solve |t-4| > t-4 ?

    asked by Tracey
  215. Physics

    A dart gun is fired while being held horizontally at a height of 1.52 m above ground level, and at rest relative to the ground. The dart from the gun travels a horizontal distance of 7.81 m. A child holds the same gun in a horizontal position while

    asked by Big Poppa Smurf
  216. Physics

    In an interference of light experiment, coherent light that contains two wavelengths: 614 nm (red-orange) and 429 nm (indigo-blue), passes through two narrow slits separated by 3.12 μm, and the interference pattern is observed on an observation screen

    asked by Jalopy
  217. Physics

    A 12.8 gram bullet embeds itself in a 2.370 kg block on a horizontal frictionless surface which subsequently collides with a spring of stiffness 487 N/m. The maximum compression of the spring is 11.0 centimetres. a) What was the initial speed of the bullet

    asked by Jalopy
  218. chemistry

    N2O5 dissolved in CCl4 decomposes to give N2O4 and O2. The reaction is first order with a half-life of 1234 seconds. How long will it take, in seconds, for the concentration of N2O5 to fall to 1.1% of its initial value?

    asked by NIK
  219. Math

    Indentify the fractions represented by A and B. 0 A 1 B

    asked by Alinna
  220. Math

    A balloon is slowly losing air , decreasing from a volume of 75cubic cubic inches to 55 cubic inches.What is the balloons percentage decrease in volume

    asked by Destiny acott
  221. Algebra2

    Are these Correct? Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 1. Passes through (3, 2) and is parallel to 2x-y=4 = 4x+y 2. Passes through (-1, -1) and is perpendicular to y = 5/2x + 3 =6\7x-2

    asked by Victoria
  222. Statistics

    I need to know how to find the probability that z0 is greater than or equal to 2.40 using my TI-83+. The answer is .008200, but I don't know how to get that using my calculator. The only reason I know the answer is because it is an example from my

    asked by Chris
  223. physics

    A gas is compressed at a constant pressure of 0.800 atm from 6.00 L to 1.00 L. In the process, 380 J of energy leaves the gas by heat. What is the change in its internal energy?

    asked by amela
  224. math

    samantha planted 42 rows of corn . if she gets 105 ears of corn from each row at the end of the summer what is the ratio of ears of rows? express in simplies form

    asked by lilly and antionette
  225. chem

    Water is the solvent and you can assume the density of water is 1.0g/cc. a.) What will be the amount of solute in grams if the volume is 500 mL and the concentration of solution is 15% w/w? The molar mass of the solute is H2SO4, 98.0g/mol b.) What is the

    asked by Angel Locsin
  226. Math

    John took a sample of water from pond behind house. On first day, he found 1 bacteria in the sample. Each day it tripled. Show growth chart.

    asked by Ryan
  227. Algebra2

    Give the domain of the function. 1. g(x)= 5/ x^2 -25 = all real numbers 2.f(t)= 3t^2+5t+2 = Negative 3. h(x)= squareRoot of ; 5x-2 = All real numbers

    asked by Nessa
  228. Advanced Math

    Find the real solutions by factoring. 3x^3+16=x^2+48x

    asked by Kristina
  229. social studies

    how to write a song about american culture

    asked by gina
  230. chemistry

    how may grams are in 6.1 moles of AIN

    asked by Anonymous
  231. Algebra2

    Check? Give the slope and y-intercept of the given line. 1. 2x-3y=6 = 3y = 2x-6 y = 2/3 x - 2 2. y=-2x = 2/1x + 1 3. y=3 = y=3/1x + 3 3y = 2x-6 y = 2/3 x - 2

    asked by Sara
  232. calculus

    Find a function f such that the curve y = f(x) satisfies y'' = 12x, passes through the point (0,1), and has a horizontal tangent there. I can use the anti-derivatives to get y = 2x^3 + Cx + D but I don't know how to get C even though I know D = 1.

    asked by asdf
  233. Spanish III

    Help me not fail my Spanish III class? Write the 'yo' form preterite of the following verbs. 1. comenzar 2. practicar 3. jugar 4. almorzar 5. tocar 6. buscar 7. llegar 8. pagar 9. cruzar 10. empezar Fill in the blank with the correct form of the verb in

    asked by Cora
  234. 5th grade

    how do you divide 1/4 by 1/2? please tell answer and explain

    asked by Anonymous
  235. P Chem

    5. The Li atom has three electrons. Measured values of the first and second ionization potentials are 5.3917 eV and 75.6400 eV, respectively. (i) Calculate the exactly correct value of the third ionization potential. Hint: What kind of species is Li+2?

    asked by Rebecca
  236. English

    Read each sentence Rewrite it correctly using semicolons in place of commas to avoid confusion The assignment is Chapter 20, pages 420-425, all of Chapter 21, and Chapter 22, pages 506-515 The assignment is Chapter 20, pages 420-425; all of Chapter 2, and

    asked by Jerald
  237. Math

    What is the better deal? Earning $1000 a day for the rest of your life or earning $.01 the first day and doubling it every day for the rest of yor life. How do you know?

    asked by Krista
  238. statistics

    Suppose 100 randomly selected customers were asked to rate a particular service they recently had on a scale of 0 to 10. The sample mean rating was found to be 7.3. (Assume the population standard deviation of all ratings in the population of customers is

    asked by Amy
  239. Physics

    In an interference of light experiment, coherent light that contains two wavelengths: 640 nm (red-orange) and 425 nm (indigo-blue), passes through two narrow slits separated by 5.35 μm, and the interference pattern is observed on an observation screen

    asked by Alphonse
  240. Science

    The ripples in a certain groove 12.7 cm from the center of a 33-rpm phonograph record have a wavelength of 1.75 mm. What will be the frequency of the sound emitted?

    asked by Jasmine
  241. Math

    Match the expression: subtract 41 from 24 raised to the 6th power; then multiply by 2. Is it A. (24^6-41) x 2 Or B. 24^6-41 x 2 Or C. (24-41)^6 x 2

    asked by Kai
  242. Algebra2

    Check? Give the slope and y-intercept of the given line. 1. 2x-3y=6 = 3y = 2x-6 y = 2/3 x - 2 2. y=-2x = 2/1x + 1 3. y=3 = y=3/1x + 3 3y = 2x-6 y = 2/3 x - 2

    asked by Sara
  243. LA/SS

    Why did George Wallace want to become president? and What did he do after 1987?? Please help. Thank you.

    asked by Suzie
  244. Adult Development and life Assessment

    Lydia behaves appropriately Postconventional morality

    asked by Regina
  245. Mba

    1- three ways that companies use to destroy their data before destroying their computers . 2-three programs that permanently destroy data on a hard disk. 3- Best methods or program for destroying data so nobody can recover it . Thanks.

    asked by hanaa
  246. mba

    1- lessons that are learned from Enron company failure .

    asked by hanaa
  247. English Colons

    Read the items If an item is correct write C otherwise rewrite it using a colon We bought apples,milk, and bread We bought: apples,milk,and bread Warning: Slippery When Wet C? The menu includes the following salmon,beef,and pork The menu includes the

    asked by Jerald
  248. QBASIC, Computers question 2

    Why do I keep getting a Type Mismatch error on this line? Also, when i click "View" to view my output screen its blank, so nothing is printing.... can so please help me resolve this? PRINT USING D$; NAM$; VehicleType$; DaysHeld; Miles; Charge My Code:

    asked by Jason
  249. pre algebra

    -1/3m - 7 =5

    asked by vanessa
  250. space

    i need help.i need info about if the sun gives the same amount of lite to both sides of the world.HELP ITS TOMMORROW

    asked by nyamka
  251. Algebra 1b

    Explain how to factor the following trinomials forms: x² + bx + c and ax² + bx + c. Is there more than one way to factor this? Show your answer using both words and mathematical notation.

    asked by Yolonda
  252. PHYSICS PLEASE HELP DUE SOON

    Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J of work?

    asked by amela
  253. pre algebra

    solve the equation 78= -2(m+3)+ m

    asked by vanessa
  254. Math

    Month. Temperature January 41f February 45f March. 54f April. 62f May. 69f Between which two months in Atlanta does thaw normal temperature change the most?

    asked by Shion
  255. Math

    10x and 45x to the power of 4

    asked by D
  256. Story 'the necklace ' by guy de Maupassant

    Describe how u felt about Mathlide at the beginning of the Story , and how u felt about her at the end . Just 3 sentences plz. I wrote a few things

    asked by Mia
  257. Math

    what is the equation for the perpendicular bisector of the line segment whose endpoints are (-7,2) (-1,-6)

    asked by Will
  258. Algebra Grade 7 (Rotation)

    If you rotate a clock clockwise 90° from 3:00, what will it be?

    asked by rawr... im a dinosaur.... rawr
  259. math

    she drives 69 miles each way.about how many miles does melissa drive in 52 weekends?

    asked by hong
  260. Math

    Which of these statements about Atlantas temperature data from January to may is true? A. It is always higher than 40 degrees Fahrenheit B. it is always lower than 60 degrees Fahrenheit C. It is hotter in march than in April D. It is cooler in February

    asked by Shion
  261. Algebra2

    Determine if the given relation is function or not. Give its domain and range. 16. (-1, 2), (1, 3), (-1, 4), (2, 5) 17. (1, 1), (2, 2), (3, 3), (4, 4)

    asked by Nessa
  262. chem

    What is the color of a solution that contains two drops of ohenolphthalein in acideic solution? What is the color in basic solution? My answer is the color in acidic turns colorless in basic solution the color will be pink. Pls. correct me if i'm wrong.

    asked by Angel Locsin
  263. Math

    Can someone show me step by step on how to factor/solve this problem explaining the steps? 5.50 = (0.02x^3 + 5x) / x

    asked by Steph
  264. Algebra

    The yearly production of a 5 foot orange tree is 34 pounds of oranges. A 14 foot tree produces 86 pounds of oranges. Let h represent the height of an orange tree and p the number of pounds of oranges produced. List the ordered pairs.

    asked by Antonio
  265. math

    Is 6.35 times 4.8= 30.480

    asked by Math Geek
  266. Math

    Will is five feet tall. He casts a 3 feet shadow at the same time that a tree casts a 9 feet shadow. Use similar triangles to find the height of the tree.

    asked by Lillia
  267. Algebra2

    Write the standard form of the equation of the circle with the given center and radius. 1. center (-2, 0) and r = 3

    asked by Pablo
  268. chemistry

    ph of 10 grams of sodium acetate and 100 mL of .5M acetic acid

    asked by ryan
  269. science

    A tall volcano, sometimes as high as 10,000 feet, composed of lava, ash, and other volcanic material and that can have explosive eruptions is best known as a ___________________.?

    asked by nunu
  270. physics

    a child knocks a ball off a table with a height of 0.60 m. The initial velocity of the ball is 2.4 m/s. What will be the horizontal distance between the edge of the table and where the ball lands?

    asked by Isis
  271. Algebra2

    Decide whether y is a function of x. 1. 5x - y = 10 2. x^2 + y^2 = 4

    asked by Jojo
  272. chem

    An erlenmeyer flask contains 56.7 g of KMnO4. How many grams of manganese is in the flask?

    asked by Liam
  273. Stats

    Macintosh users make up about 5% of all computer users. A computer training school that wants to attract Macintosh users mails an advertising flyer to 25,000 computer users. If the mailing list can be considered a random sample of the population, what is

    asked by Amy
  274. Math

    -5 over 8 times -3

    asked by Anonymous
  275. Physics

    A 25000 kg truck moving at 40 m/s on a road angled at 17° hits a 10000 kg van moving at 25 m/s on a road angled at 60° at an intersection between two the two roads. Since this is a two-dimensional perfectly inelastic collision, what is the final velocity

    asked by Scoop
  276. Algebra2

    Find and simplify a) f(a), b) f(a + h) and c) F(a+h) - f(a) / h ; 1. f(x) = x^2 + 5x -10

    asked by Devin
  277. math

    Please, help me! 5/(x^2 - 4) + 2/(x^2 - 4x - 3) - 3/(x^2 - x - 6)

    asked by David
  278. Physics

    What is the magnitude of the electric field 0.3 m from a 10-4 C point charge?

    asked by Karl
  279. Physics

    Two resistors of equal resistance are connected in series with each other and are connected to a battery that produces a potential difference of 8 V. If the current is 0.2 A what is the value of each resistance?

    asked by Stan
  280. math

    A fish tank is 50 cm long, 34 cm wide and 24 cm high. It contains water to depth of 18 cm. Four identical spheres are placed in the tank and are fully submerged. The water level rises by 4.5 cm. 1.What is the volume before the spheres were added? 2. What

    asked by Lindsay
  281. Physics

    What is the equivalent resistance of two resistors of 2 ohm and 3 ohm connected in parallel?

    asked by Ashley
  282. spelling

    what does the vc/v and v/cv pattern mean?????Tell me pretty please please with a cherry ontop

    asked by vanesa
  283. Algebra2

    Give the domain of the function : 1. g(x) = 5 / x^2 - 25 2. f(t) = 3t^2 + 5t + 2 3. h(x) = SquareRoot Of : 5x - 2

    asked by Unknown
  284. math

    Find the values of the trigonometric functions of t if tan t= 3 and the terminal point of t is in quadrant III.

    asked by amaa
  285. Stats

    Macintosh users make up about 5% of all computer users. A computer training school that wants to attract Macintosh users mails an advertising flyer to 25,000 computer users. If the mailing list can be considered a random sample of the population, what is

    asked by Amy
  286. Algebra2

    Find the functional values f(-5), f(1), and f(3) for the compound function. 1. f(x)= |x-5| if x≤1 ; (1)/(x+1) if x>1

    asked by Unknown
  287. Math .. Please help Reiny

    A group of 25 eight graders went to collect 300 blankets to donate to victims of super storm Sandy. If each student collects 7 blankets on the first day, how many more blankets will each student need to collect to reach their goal. Answer must include a

    asked by Sunshine
  288. Chemistry

    Calculate the energy released when an electron is added to a hydrogen nucleus. Assume the transition is n= infinite to n=1. I know equation to use but how do I calculate when n is infinite and no number ?? Please some help

    asked by Anonymous
  289. Algebra2

    Graph the given function using the given values of x. Also use the graph to determine the domain and range of the function. 1. f(x) = x^2 -1 ; x = -3, -2, -1, 0, 1, 2, 3 2. g(x) = squareRoot Of ; x+1 - 2 ; x = -1, 0, 3, 8 3. h(x) = |x-3| ; x = 0, 1, 2, 3,

    asked by Unknown
  290. Physics- Difficult Please Help

    If a 60N weight free falls onto a hollow ball what amounts of force are produced after 3 seconds of impact, if it lands .3m away of the center?

    asked by Leo
  291. math

    108 inches to feet

    asked by annie2
  292. math

    To Steve: My mom marked it wrong but I knew I got it right. THANKS!!!!

    asked by Math Geek
  293. Algebra2

    Graph the given function using the given values of x. 1. f(x) = 5 ; x = -3, -2, -1, 0, 1, 2, 3 2. g(x) = x^3 + 2 ; x = -2, -1, 0, 1, 2

    asked by Sara
  294. math

    I got $5.70 because I used the problem $4.20 divided by 4. By the way THANKS!!!! again.

    asked by Math Geek
  295. math

    12/14 - 3/17

    asked by harsha
  296. physics

    A missile of mass 1.10 102 kg is fired from a plane of mass 5.50 103 kg initially moving at a speed of 3.15 102 m/s. If the speed of the missile relative to the plane is 1.06 103 m/s, what is the final velocity of the plane?

    asked by Anthony
  297. Seneca

    Henrietta went to a bank and obtained a personal loan with an interest rate of 3.18% compounded monthly. if the effective interest rate on the loan were to decrease by 1%, calculate the new nominal rate compounded monthly?

    asked by Madeleine
  298. algebra 2

    Evaluate (7+3i) - (-2 -5i)

    asked by Ashley
  299. Math

    David wanted to solve 3(x-7)=5. As a first step, he wrote 3x-21=15. What error did he make? Correct his error and then find the solution?

    asked by Patchie
  300. physics

    A missile of mass 110 kg is fired from a plane of mass 5500kg initially moving at a speed of 315 m/s. If the speed of the missile relative to the plane is 1060 m/s, what is the final velocity of the plane?

    asked by Anthony
  301. Algebra2

    Check Please? Determine if the given function is even, odd or neither. 1. f(x) = 3x^4 - 2x^2 =Even. 2. f(x) = x^3 + x = Odd.

    asked by Pam
  302. Algebra2

    Check ? If f(x) = int(x), find the given functional value. 35. f(-14.321) = 14

    asked by Victoria
  303. Math

    Rename each repeating decimal as a fractio in lowest terms. Use Let statement, an equation, a proper solution (using Properties of Equality). 1) 0.87 2) 0.5406 3) 0.048 4) 3.274

    asked by Sammyjoo
  304. earth science

    if carbon 14 has a half life of 24 days how much would be left of 220 gram sample after 168 days

    asked by lan
  305. earth science

    if carbon 14 has a half life of 24 days how much would be left of 220 gram sample after 168 days

    asked by lan
  306. geomatry

    write the first 5 term in the sequence that represent this situation. each term should indicate the total number of students that can sit around one, two, three, four, and five tables. explain your reasoning.

    asked by annoymose
  307. Physics

    A sealed box containing a chunk of ice is made of 2cm thick wood, a good thermal insulator. The air outside the box is warm. It takes the ice one hour to melt. If I had put 2cm of aluminum (a good thermal conductor) around the outside of the box, in

    asked by StressedStudent
  308. History

    Ms. Sue. Do you have the answers for English 3 and 4 for Ashworth High School? I have completed all the other classes by myself. But if I don't finish English 3 and 4 by next week, I'll have to repay my tuition. Please help me!

    asked by Bob
  309. PHYSICS DUE SOON

    A gas is compressed at a constant pressure of 0.800 atm from 6.00 L to 1.00 L. In the process, 380 J of energy leaves the gas by heat. ____J

    asked by Ame
  310. Physics

    The igloo shown at the very start of chapter 13 is meant to keep out the cold. Which would work better: an igloo made of ice 15cm thick or an igloo made out of concrete 15cm thick? Ice Concrete

    asked by StressedStudent
  311. earth science

    what would be the chart to use for carbon 14 whcih has a half life of 5730 years and a piece of wood which originally has 12 grams pf radioactive isotope; If the half lives occurred and now has 0.75 grams left?

    asked by lan
  312. English

    Read each sentence Then write the conjunctive adverb or transitional expression I was happy with my grade; indeed, I was thrilled with the B indeed? There's no need to panic; at this time, it is best to wait for the test results at this time? Mom wanted to

    asked by Jerald
  313. math

    A figure has 2 sets of parallel sides and 4 right angles. All of the sides are the same length. What are the 3 names for the figure?

    asked by mythreyee
  314. chem

    Calculate the pH of each and determine whether each of the following solutions is acidec or basic. a) [H^+]=1.0 e-11M solution b) [OH^-]=1.5 e-3M solution c) [H^+]=5.2 e -5M solution

    asked by Bea Alonzo
  315. english

    Which of the following is an example of an emotional appeal? A. Many organizations have offered recommendations. B. It will have global impact in the near future. C. It will be the greatest environmental tragedy. D. More than 90 percent of the scientists

    asked by Lexis
  316. math

    Aarthi borrowed $18,500 at 5%p.a from her father tostart her software business. at the end of 3 months she paid him $5,000 and $6,000 at the end of 8 months. how much would she have to pay him at the end of 16 months to clear the balance? pleas answer!

    asked by flor
  317. Physics

    What is the difference between converging and diverging waves? What happens to a converging wave after it has converged?

    asked by Raju
  318. Astronomy Grade 9

    What hazards do humans face when they are in space and what technologies have been developed in response to these hazards?

    asked by Curly Sue
  319. math

    there are 2 numbers one number is 7 more than the other and the two numbers equal 60 what are those two numbers?

    asked by gool
  320. math

    Suppose you have a $1,000 charge on a credit card charging 1% monthly interest using the adjusted balance method. The minimum payment due in May is $30. How much will you save in interest charges in June by paying $60 instead?

    asked by Anonymous
  321. Physics

    Describe the waves reflected from an elliptical reflector when the incident wave comes from a point source at one focus of the ellipse?

    asked by Raju Singh
  322. Astronomy Grade 9( PLEASEEE HELP!!!!!!!!!!!!!!)

    What hazards do humans face when they are in space and what technologies have been developed in response to these hazards?

    asked by Curly Sue
  323. SCIENCE HELP ME

    CAN ANYBODY EXPLAIN A VIRUS IN ACTION TO ME CHLAERLY LIKE THE STEPS PLZ I REALLY WOULD LVE THAT ;)

    asked by tesj
  324. Physics

    (a) What is the shape of the radio waves from a satellite when they reach a dish antenna on the roof of a building? Explain. (b) Explain what happens to these waves when they reach the dish.

    asked by Raju Singh
  325. chem

    How many moles of CoCO3 are there if sample has 2.84 times 10 to the 16th power carbonate particles

    asked by punkin
  326. us history

    Compara and contrast your modern immigrant to historical immigrants. Atleast 10 bullets on each section. (Historical Immigration, both, and Modern immigration)

    asked by Emily
  327. science

    How much sugar must be added to 50g of water to make a saturated solution at 0 degrees?!

    asked by Danielle
  328. Health

    I need a good site that talks about Hallucinogens and Dissociative Drugs

    asked by Ayahna
  329. math

    police officer johnson is 6.2 ft tall and casts a 2.3 ft shadow. at the same time. his nearby car casts a shadow which is 12 ft long. write a proportion to find the hight of the SUV.

    asked by ANNONIMUS
  330. Math

    When rolling two dice, what is the probability that the sum is 7 given that one die is a 5?

    asked by Michelle
  331. Math

    x^2-4x-32 / x^2-20x-96 how do you simplify this?

    asked by Liz
  332. Math

    What would the surface area be for a rectangular prism that has a height of 12 ft, a length of 12 ft, and a width of 2 ft? Thanks.

    asked by Brandi
  333. Physics

    A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 10.6 m/s. The cliff is 25 m above a flat, horizontal beach. A.) How long after being released does the stone strike the beach below the cliff? The

    asked by Big Poppa Smurf
  334. Math

    b= -5 1/2 divided (-2 3/4)

    asked by Keyanna
  335. Algebra2

    Check? Find the slope of the line that is a) parallel and b) perpendicular to the given line. 1.x=-8 = 1/2x ; 3/7y 2.y=10 =2/3x ; 2/5y

    asked by Nessa
  336. Question (english related) - please read!

    Progressing Gradually - The student is making less anticipated progress but may still achieve the goal. What does this mean?????

    asked by Laruen
  337. science

    15.0g of potassium acetate is added to 500.0mL of 0.50M solution of acetic acid. What is the pH and the pOH of the solution?

    asked by sam
  338. chemisty

    What volume of 0.250 M calcium chloride needs to be added to sodium phosphate to produce 35.0g of calcium phosphate?

    asked by kenny
  339. Intergrated Algerbra

    A caterpillar and snail are 300 ft apart. They meet face to face in 5 hours. What were their speeds?

    asked by janet
  340. history

    does crossing the color line mean how light skinned african americans would pass as being white in order to avoid racial discrimination?

    asked by Blaze
  341. physics

    Question 4 A 0.9 kg block attached to a spring of force constant 2.1 N/m oscillates with an amplitude of 9 cm. A)Find the maximum speed of the block. Answer in units of m/s B)Find the speed of the block when it is 4.5 cm from the equilibrium position.

    asked by maura
  342. SCIENCE

    I have 2 questions that I need help with please. 1.What are the three parts of the law of conservation of mass/matter? Do not need the definition but the 3 laws please. 2. How are velocity, speed, and acceleration related? I know how they are different

    asked by QUICK PLEASE HELP
  343. science

    Illnesses such as malaria, yellow fever, and sleeping sickness are transmitted by

    asked by Anonymous
  344. Algebra2

    Check? Write the standard form of the equation of the circle with the given center and radius. 14. center (-2, 0) and r = 3 =18

    asked by Nessa
  345. chem

    Can anybody explain to me how to determine the endormicity and exormicity in a reaction and where does the equilibrium shift. Pls. give an example of it. Iwas reading my book and trying to understand but i really can't comprehend it. Now I'm stuck here i

    asked by Angel Locsin
  346. Geometry

    a triangle has sides of lengths 12, 14, and 19 is it a Right Triangle? Explain

    asked by Anonymous
  347. algebra

    I need someone to explain the steps in finding all zeroes of an equation x^4-6x^2-7x-6=0

    asked by lee
  348. music

    which genre of music was influenced by r&b, jazz, and pop?

    asked by Anonymous
  349. physics

    Carnot engine operates between 170°C and 23°C. How much ice can the engine melt from its exhaust after it has done 4.5 104 J of work?

    asked by amela