Questions Asked on
October 19, 2010

  1. probability

    icrobes in a certain colony exposed to radiation have a 1/6 chance of being mutated. a. If ten microbes from the colony are sampled, what is the probability that at most 4 will be mutated? b. If microbe from the colony is examined one by one, what is the

    asked by lisa
  2. College Chemistry

    What is the wavelength(in meters) of a proton(mass=1.673x10^-24g) that has been accelera ted to 25% of the speed of light?

    asked by Whitney
  3. chemistry

    what is the osmolarity of a .20 M solution of Na3PO4?

    asked by Dana
  4. Trig

    Solve for 0

    asked by mickey
  5. CHEMISTRY

    suppose a 1-m(power3) sample of air at sea-level pressure, containing 4 g of water vapor, was cooled and condensation occurred. how many calories of heat would be released by this process?

    asked by TC
  6. Math

    How is total revenue change from budget calculated. I take the actual number with the budget number and add or subtract them together and divide by the budget number? I'm lost can you help please?

    asked by MaryAnn
  7. physics

    An airplane with a speed of 13 m/s is climbing upward at an angle of 48° counterclockwise from the positive x axis. When the plane's altitude is 720 m the pilot releases a package. (a) Calculate the distance along the ground, measured from a point

    asked by Anonymous
  8. Physics

    A soccer player kicks a ball into the air at an angle of 36 degrees above the horizontal with a speed of 30m/s a.How long is the soccer ball in the air? b. What is the horizontal distance traveled by the ball? c. What is the maximum height reached by the

    asked by Mallori
  9. physics

    On a distant planet, golf is just as popular as it is on earth. A golfer tees off and drives the ball 4.9 times as far as he would have on earth, given the same velocities on both planets. The ball is launched at a speed of 54 m/s at an angle of 42° above

    asked by Anonymous
  10. algebra

    the length of a rectangular jewlery box is 6 inches more than twice the width. the perimeter is 36 inches. find the length and width?

    asked by john
  11. Chemistry

    Sorry DrBob, it's me again! Here's the info: Antacid Brand: Life Concentration of HCl: 0.1845 M Concentration of NaOH: 0.1482 M Trial 1: 1.Mass of Table: 1.2173g 2.Volume of HCl added: 75.0 mL 3.Milliomoles of HCl added:(0.1845M x 75.0mL= 13.84 mmoles

    asked by Akhed-To DrBob222
  12. Chem

    What is the relationship between the ionization energy of the monoanion such as CL- and the electron affinity of the neutral atom?

    asked by Whitney
  13. chemistry

    a mixture of gases contains 0.4 mole of N2, 0.5 moles of O2, and 0.7 moles of H2. What is the partial pressure of O2 if the total pressure is 1.3 atm?

    asked by Sammy
  14. chemistry

    if 125 ml of H2O is added to 50 ml of 0.35 M NaCl, what is the molarity of the resulting solution?

    asked by Dana
  15. Chemistry

    Calculate the theoretical amount of CaCl2 that would be required to change the temperature of 50ml of water from room temperature 20C to 45C? Remember heat loss during the dissolution is equal to the heat capacity of water. this value is 4.184. you assume

    asked by Sarah
  16. math

    what is the average speed if it takes 0.5 hours to jog 4,000 miles ?

    asked by tedeja
  17. Physics

    A box slides down a 36° ramp with an acceleration of 1.05 m/s2. Determine the coefficient of kinetic friction between the box and the ramp.

    asked by Diana
  18. math

    Obtain the Taylor series in powers of x + 1 for f(x) = x/(2 + x), giving the general term and the interval of convergence.

    asked by Mark
  19. Physics

    A block with a mass 4.0 kg is held in equilibrium on an incline of angle θ = 42° by a horizontal force F. a)Find the magnitude of the normal force. b) Find the magnitude of F. (Ignore friction.)

    asked by Diana
  20. Physics

    A 2.90 kg block starts from rest at the top of a 30° incline and accelerates uniformly down the incline, moving 2.23 m in 1.90 s. a) Find the magnitude of the acceleration of the block. (b) Find the coefficient of kinetic friction between the block and

    asked by Diana
  21. algebra

    (3^x)^2/(27^x2)=1

    asked by sarah
  22. Health

    Description of the Epilepsy emergency.

    asked by Jean
  23. precalc

    (4^x2)^2 mulipled by 1/(4^5x)=64

    asked by sarah
  24. stastics- correlation and regression

    for the table that follows: answer the following questions: x y 1 -1/4 2 -1/2 3 -3/4 4 ? * would the correlation between x and y in the table show above be positive or negative? i think that it would be negative, i am not sure that is correct? * find the

    asked by mary-please help figure out this problem.
  25. chemistry

    A coin dealer, offered a rare silver coin, suspected that it might be a counterfeit nickel copy. The dealer heated the coin, which weighed 14.0 g to 100°C in boiling water and then dropped the hot coin into 29.5 g of water at T = 15.0°C in an insulated

    asked by jake
  26. physics

    A car starts from rest on a curve with a radius of 190m and accelerates at 0.600m/s^2 . How many revolutions will the car have gone through when the magnitude of its total acceleration is 3.50m/s^2 ?

    asked by Kamini
  27. English

    Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. · Use at least five different pronouns in your sentences. Please let me know if I have done this correctly. While away at

    asked by Rene
  28. Physics

    From the top of a tower is an object with mass 25 kg which is lowered with ropes at a constant speed, 4 m / s to the ground. After 10 seconds the rope by which an object falls freely. From the moment there are 12 seconds to those standing on top of the

    asked by Oddbjørn
  29. physics

    Two cars are traveling at the same constant speed v. Car A is moving along a straight section of the road, while B is rounding a circular turn. Which statement is true about the acceleration of the cars? a.) acceleration of both cars is zero b.) car A is

    asked by jo
  30. physics

    find the ratio of the intensities of two sounds if one is 8 dB louder than the other

    asked by kabelo
  31. CALCULUS

    Find the relative extrema of function. f(x,y)=x2+3xy+y2-10x-20y+12

    asked by AYA
  32. physics

    two cars are heading at each other with the same speed v. The horn of one (f=3000Hz) is blowing,and is heard to have a frequency of 3400Hz by the people in the other car.Find v if the speed of sound is 344m/s

    asked by kabelo
  33. physics

    A ball is project from the building of height 250m, at angle 45degree below the horizontal with a speed of 25m/s. i) how long does the ball remain in the air? ii) find the magnitude and direction of the velocity of the ball just before it strikes the

    asked by sam
  34. english

    List the nouns in the following sentence. Next to each noun - label whether it is concrete or abstract by writing a "C" or an "A." Sentence: In the midst of the excitement, Samuel lost his pencil on the bus. This is what I believe to be correct:

    asked by Jason
  35. Physics

    a bicycle turned upside down whiles owner repairs a flat tire. A friend spins the other wheel, of radius R, and observed that drops of water fly off tangentially. She measures the height reached by drops vertically. A drop that breaks loose from the tire

    asked by Anonymous
  36. english

    In the answer area below, write the 2 adverbs in this sentence and explain how each adverb is used. Example: Eventually, she walked proudly. Answer: eventually - eventually tells when she walked ; proudly - proudly tells how she walked Sentence: She walked

    asked by Jason
  37. managerial economics

    firms demand function,p=24-0.54q and the average cost function,AC=Q2-8Q+36+3/Q,calculate the level of output Q, which maximize total revenue,maximizes profits

    asked by kala
  38. physics

    A vibrating stretched string has length 31 cm, mass 19 grams and is under a tension of 38 newtons. What is the frequency of its 3rd harmonic? If the source of the wave is an open organ pipe of the same length as the wire, what would be the frequency of the

    asked by sandhu
  39. math

    what is 9t 435kg in decimal form

    asked by anonymous
  40. managerial economoics

    close relationship between mnagement and economics has led to the development of managerial economics

    asked by kala
  41. chemistry

    A coal burning plant that burns 4 metric tons of coal containing 2% sulfur (S) requires 1 metric ton of wet limestone (calcium carbonate) to remove 90% of the sulfur. The process prevents most of the sulfur from being emitted as sulfur dioxide to the air

    asked by emily
  42. English literature

    summary of The king is dead long live the king by Mary E. Coleridge

    asked by Anonymous
  43. 11th grade

    a meter stick of wight 0.8 n is pivoted at 40 cm mark at which mark 1n load should be located to balence the sticke

    asked by Ammar Hafez
  44. chemistry

    The first step in the Ostwald process for making nitric acid is the formation of NO as follows; 4HN3 + 5O2 makes 4NO + 6 H2O. According to the equation, 5 moles of NH3 will react stoichiometrically with blank moles of O2 to form blank moles of NO. I can't

    asked by lavonne
  45. sociology

    hi, i have just seen 4 new terms in sociology,chapter family..and i don't know what is it? the terms are, ideological state apparatus, domestic labourmatrifocal and matrilineal..i don't what is it.. i hve just seen these terms as exam question by

    asked by Pallavi
  46. Research and Evaluation

    I know what primary and secondary data collections are, but why must secondary data collection be conducted early in a project and the primary data collection be done later in the project?

    asked by Mom of 8
  47. Physical Science

    A copper bowl and a silver bowl of equal mass were heated from 27 C to 100 C. Which required more heat? Expain. (C copper = 380 j/kg C; C silver =235 j/kg C

    asked by Laura
  48. 5th grade

    What do you mean by "Time is Gold" and " Lost Time cannot come back anymore"?

    asked by Chelsea
  49. Algebra

    Could you please check my answers and help with the ones I can't figure out- 1. Solution to the radical function sqrt(12x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 x^2 - 8x = 0 x(x-8) = 0 x

    asked by JayLynne-Please check
  50. Physics

    A 56 cm diameter wheel accelerates uniformly about its center from 130 rpm to 400 rpm in 3.2 s. (a) Determine its angular acceleration. Express your answer using two significant figures. (b) Determine the radial component of the linear acceleration of a

    asked by Tommy
  51. physics

    A small rubber wheel is used to drive a large pottery wheel, and they are mounted so that their circular edges touch. The small wheel has a radius of 1.7 cm and accelerates at the rate of 6.9 rad/s^2, and it is in contact with the pottery wheel (radius

    asked by Lacey
  52. medical

    Why is it important to maintain a log of requests for release of information

    asked by Amy
  53. 8th grade

    write an equation for a line that is parallel to y=2x+4 but passes through (0,0)

    asked by myriah
  54. Geometry

    Find the measure of each side of isosceles triangle ABC with AB = BC if AB = 4y , BC = 3y + 2 , and AC = 3y.

    asked by Rhonda
  55. maths-definite integral

    evaluate the following expression at z=5 d/dz ¡Ò[z to 2] (3+x^2)dx

    asked by May
  56. maths---integral

    the time index t runs from a to A. if an investment produced a continuous stream of income over 10 years at a rate of $20,000 per year and the interest rate is 6% per year continuously compounded. what is the present value? what is the integral function?

    asked by May
  57. Calculus 1

    find the area of the largest posible isosceles triangle with 2 sides equal to 6. thanks

    asked by Oswaldo
  58. Grade 11 physics

    After reaching its highest point the blue ninja rocket's chute opens. If the rocket falls at a constant speed of 1.5 m/s. From the height of 300m in a cross wind of 4 m/s. How far down wind does the rocket travel from the launch pad?

    asked by Erin
  59. Calculus

    A SHEET OF CARDBOARD 180 INCHES SQUARE IS USED to make an open box by cutting squares of equal size from the corners and folding up the sides, what size squares should be cut to obtain a box with the largest possible volume?

    asked by Oswaldo
  60. college

    find domain of f(x)=3/x+5 + 2radical x-1

    asked by taylor
  61. english

    Every paragraph in a critique should _____. a)focus on an aspect of the theme b)mention the protagonist c)be centered around one main idea

    asked by danny g
  62. english

    what is a "figure of speech"?

    asked by danny g
  63. Physics

    Two ice skaters, with masses of 30kg & 85 kg are at the center of a 30m diameter circular rink. The skaters push off against each other & glide to opposite edges of the rink. If the heavier skater reaches the edge in 40s, how long does the lighter skater

    asked by Rene
  64. language arts

    i have to use the word fretish in a sentence as a noun, verb, and an adjective and as a different part of speech each time. i've looked everywhere and i cant even find what fretish means. PLEASE HELP!!!

    asked by Sage
  65. englsih

    is this right? "It is essantial that a conflict be included in a story"

    asked by danny g
  66. algebra

    what is the average height of a softball that is pitched to a batter from 45 feet away?

    asked by DJ
  67. calculus

    : A 20m ladder is placed against a wall. The bottom of the ladder is slipping at the rate of 2m/sec. How fast is the top of the ladder sliding down the wall when the bottom of the ladder is 12m from the wall

    asked by awesome
  68. calculus

    Q#1: From a point of O, two cars leave at the same time. One car travels west and after ‘t’ sec, its position is x=t2+t ft. the other car travels north and it covers y= t2+3t ft in ‘t’ sec. At what rate is the distance between the two cars changing

    asked by awesome
  69. english

    A)"Whoa there, buddy," Leticia cautioned. "Let's not jump to any conclusions." B)"Whoa there, buddy," Leticia cautioned, "Let's not jump to any conclusions." C)"Whoa there, buddy." Leticia cautioned. "Let's not jump to any conclusions." D)"Whoa there,

    asked by danny g
  70. Algebra-Please check my calculations

    Could you please check my answers and help with the ones I can't figure out- 1. Solution to the radical function sqrt(1/2x+1) = 1 is x = 0 True or False I think it is true according to my calculations 2.Solve x = sqrt(8x) 8x = x^2 x^2 - 8x = 0 x(x-8) = 0 x

    asked by JayLynne-I had misprint in previous posting
  71. IPC

    What is the change of phase from a solid to a gas? I know, liquid to gas is evaporation. So what if it skips the liquid part? Help?

    asked by Kaitlin
  72. 11th grade english

    A)When she told him those socks are interesting she meant the socks looked ridiculous. B)When she told him "Those socks are interesting" she meant the socks looked ridiculous. C)When she told him, "Those socks are interesting," she meant the "socks looked

    asked by danny g
  73. sociology

    I am writing an essay on the socialogical perspectives on the issue of unemployment. The symbolic interactism and function analysis. I went on the web and research the issue of unemployment and the meaning of the perspectives, yet I am stumped on how to

    asked by Linda
  74. corporate finance

    If the rate of inflation is 5%, what nominal interest rate is necessary for you to earn a 3% real interest rate on your investment?

    asked by rob
  75. chemistry

    2. Predict the approximate amount of heat liberated by burning a gram of candle wax and a gram of propyl alcohol (Note: candle wax is a mixture of saturated carbon compounds with 20 or more carbons in each molecule and no oxygen. Propyl alcohol has the

    asked by vanessa
  76. economics

    why might an economist look at hundreds of cars moving along an assembly line and call it an example of scarcity

    asked by ben
  77. calculus

    A 24ft high conical water tank has its vertex on the ground and radius of the base is 10 ft. If water flows into the tank at a rate of 20 ft3/min, how fast is the depth of water increasing when the depth of the water is 20 ft?

    asked by daani
  78. Chem

    Could you please tell me if these are right? How many moles are in the following. A.) 80.0 g of NaOH I got 2.0 moles. B.) 12.0 g of Ca(OH)2 I got 0.16 moles. Write the simplest formula for each of the following compounds. A.) 0.200 mole Al and 0.600 Cl. I

    asked by Chris
  79. Chemistry

    Can you tell me if these are right please? When 2.50g of copper reacts with oxygen the copper oxide product has a mass of 2.81g. What is the simplest formula of the copper oxide. I got Cu2O (copper (I) oxide). Aluminum and oxygen gas react to produce

    asked by Jason
  80. math

    what is 1/5 of $25,000.00?? PLEASE HELP!!

    asked by chrissty
  81. Chemistry

    I need someone to check these True or False questions for me please: 3. Dissolving salt in water is a physical change- F 14. Burning newspaper is a physical change- F 19. The liter is a measure of volume- T 20. The amount of heat and temperature of a

    asked by mysterychicken
  82. Physical Science

    A 1.0 kg glass bowl at 37 °C is placed in a freezer. How much heat will the freezer have to remove from the bowl to take it to 0 °C? (cglass = 0.2 cal/deg-gm)

    asked by Bob
  83. maths

    karen decorated her mother's birthday cake. one-third of candles are pink, three-eights are yellow, one-quater are blue and the two remaining candles are white. calculate (a). the fraction of candles that are white. (b). the total number of candles on the

    asked by tia
  84. Algebra

    When I asked you about the following problem:Solve 4sqrt(6x-2)>4 The first 4 is outside the square root sign and then (6x-2) is under the square root sign >4. You said to do the following. Divide by 4 to get sqrt(6x-2)>1 For this to happen, 6x-2>1 or

    asked by JayLynne-Mathmate please recheck
  85. maths

    solve the following pair of simultaneous equations. 2x-3y=13 3x+y=3

    asked by tia
  86. science

    Mars is 48 million miles from earth. If a spaceship leaves Earth traveling toward Mars at 6 million miles per hour (m.p.h.). How long will it take the spaceship to arrive on Mars.

    asked by joscelyn
  87. vector proofs math 536

    if the diagonals of quadrilateral ABCD intersect at their midpoints, then the quadrilateral is a parallelogram. Prove that AM MC --- = --- MB MD Ive tried figuring out this question for a while now and I cant figure it out.

    asked by dave
  88. US History

    29. The Greenback party and Farmers' Alliances both called for a. putting more money into circulation b. opening American markets to foreign crops c. cutting back on protests d. repealing the Sherman Silver Purchase Act I can't seem to find the answer for

    asked by mysterychicken
  89. chemistry

    A coal burning plant that burns 4 metric tons of coal containing 2% sulfur (S) requires 1 metric ton of wet limestone (calcium carbonate) to remove 90% of the sulfur. The process prevents most of the sulfur from being emitted as sulfur dioxide to the air

    asked by emily
  90. math

    the diagram below represents a drinking glass of diameter 10cm. it is partially filled to a height of hcm with apple juice. (a) using 3.14 give an expression in term of h for the volume of juice. the actual volume of the juice is 0.471 litres. (b)

    asked by tia
  91. maths

    two cyclists go around a race track repeatedly. the first cyclist takes 105 seconds to complete a circuit. the other cyclist takes 75 seconds. they begin together at the starting line. calculate the length of time, in minutes and seconds that would have

    asked by tia
  92. maths

    for he formula A=P+Prt, find the value of (a). (i) A when P = 750. r=0.09 and t=8 (ii) P when A=720.r=0.12 and t=5 (b) make t the subject of the formula

    asked by tia
  93. math11

    I have several questions similar to this one and was wondering if you could walk me through this one. I'm totally lost on how to do it. Paramecia reproduce by splitting in two. In a laboratory flask, a colony of paramecia had an initial population of 500.

    asked by Maddy
  94. alegrba 2

    R(p)=-2.5p^2+600p

    asked by william
  95. chemistry

    What data would you need to evaluate the claim that a certain product neutralizes 47 times its weight in excess stomach acidity?

    asked by Emma
  96. math

    2 ships sail from the same por, one sails dew east at 15 mph and the second sailed dew south at 20 mph, how far apart are the ships after 3 hours? could you show the how you set this problem up?

    asked by Greg
  97. grammar

    what would be a good thesis for a Jay Z paper?

    asked by Melanie
  98. O Chem

    I need help with this question please. Draw the structure of triacylglycerol formed from oleic acid, linoleic acid, and stearic acid. Give balanced equation and show how much hydrogen would be needed to reduce the triacylglycerol completely, show the

    asked by David
  99. math

    Show how to find the quotient 18 divided by (-6) by using the following: a) the idea of division as finding a missing factor. b) the procedures for integer division.

    asked by m
  100. accounting

    GRANT CLINIC, INC. Financial Plan and Presentation Grant Clinic, Inc. serves a suburban community with a population of about 24,000, of which 25% are expected to become patients of the clinic. Approximately 6 miles from Grant Clinic, Inc., a new

    asked by Andria
  101. medical coding and billing

    help with these six exam 00816,038150,038152,028004,028008 and 028006 my life depends on this

    asked by peches
  102. Chemistry

    Need help with this-- 'Place the letter of the item in Column II before its best match in Column I' Column 1: 41. Unit of volume 42. unit of mass 43. unit of temperature 44. unit of density 45. .01 of a meter Column II: a. grams b. grams/cm^3 c. Kelvin d.

    asked by mysterychicken
  103. Astronomy

    How would I compare the orbital period of two stars knowing their distance apart in AU and their solar masses?

    asked by Dre
  104. physics

    A toy sled with a mass of 1.0 kg is sliding down a ramp that makes an angle of 25° with the ground. The coefficient of kinetic friction between the toy sled and the ramp is 0.25. 4. In a coordinate system where the x-axis is parallel to the ramp and the

    asked by Jeremy
  105. math

    Jane's aquarium contains goldfish, turtles, and snails. There are 16 legs, 10 shells, and 36 eyes in the aquarium. How many creatures of each type are in the aquarium? (Hint: Snails have two eyes, one shell, and one leg.)

    asked by alyse
  106. math

    If you exchange 300 USD for Euro's how many Euro's would you have?

    asked by carolyn
  107. math

    If Sam wants to make concrete blocks that are 24 inches by 24 inches by 4 inches thick. How man blocks can he make from 1 cubic yard of concrete

    asked by carolyn
  108. Chemistry

    A solution is labeled as ~8M NaOH. How many mL of this solution would be needed to prepare 750mL of a ~0.2M NaOH solution?

    asked by Katie
  109. Calc

    y= cot^2(sin(theta)) find dy/dx For some reason i can never get these right! I hope someone that is on can help me with this

    asked by MATH HELP!
  110. calculus optimization max min

    find the dimensions of the rectangular area of maximum area which can be laid out within a triangle of base 12 and altitude 4 if one side of the rectangle lies on the base of the triangle thanks

    asked by Oswaldo
  111. 5 th grade

    The sum of my ones digit and tens digit is 10. My tens is greater than my ones digit. I am a prime number. What number am I?

    asked by Cade Pruitt
  112. math

    I'm a fraction playing card. My demominator is 4 times my numerator. Add my numerator and denominator and you get 15. Who am I?

    asked by Anonymous
  113. Math

    How would you solve 23=1-d? I don't even think there would be an answer to this.. can someone explain to me how to solve this? Thank you!

    asked by Allyson
  114. calculus

    find the limit of f'(x) = 1/(√x) using the limit definition of derivative.

    asked by John
  115. Math

    show the make -a- ten fact you used with sum?

    asked by Frankie
  116. Calc

    y= cube root (1+tan(t)) OR y= (1+tan(t))^(1/3) The answer I got was y'= (1/3)(1+tan(t))^(-2/3)*(sec^2(t)) Is this correct?

    asked by Checking answer
  117. math

    round off to nearest 10th do i change the number in tenth position

    asked by dollie
  118. physics

    An object is dropped onto the moon (gm = 5 ft/sec2). How long does it take to fall from an elevation of 250 ft.?

    asked by shaun
  119. Chemistry

    Can someone please help me with these: 3. Dissolving salt in water is a physical change- False? 'Place the letter of the item in Column II before its best match in Column I' Column 1: 41. Unit of volume 42. unit of mass 43. unit of temperature 44. unit of

    asked by mysterychicken
  120. Algebra story problem, check please?

    Dan purchases dvd's from a website, each dvd costs 11 dollars, and the shipping and handling fee is 6.95, dan is charged a total of 50.95, how many dvds did he purchase? A) Label a variable and write an equation: 11(x)+6.95=50.95 x is the number of DVD's

    asked by Allyson
  121. math

    Give a counterexample to show that the following generalization about the set of integers is false. Closure property for division.

    asked by m
  122. Ethics

    I need lots of reasons why drug companies charge so much for drugs?

    asked by Anique
  123. english

    I have to write a thoughtful composition on the following: Gothic novels emphasize horror, mystery, and the supernatural. Write an analysis of the gothic features of the nvel Frankenstein that are evident in Chapters 1 through 8. How does she Shelley

    asked by Ana
  124. Algebra function problem, check/help?

    Set up a function for the following situation: The output of a function is 8 less than 3 times a number. B) Find the input when the output is 13? Would your equation look like: 8

    asked by Allyson
  125. ITT

    In an accidental explosion, a satellite breaks in half while in circular orbit about earth. one half is brought momentarily to rest. what is the fate of the half brought to rest? what happens to the other half?

    asked by ed
  126. chem

    i understand most of the problem but where did the 0.84 M come from? a drug was injected into your body with a 2.00 M concentration. what would be its concentration after 0.010 seconds if k = 875 ^ -1 1st order reaction! ln [ A ]t = - (875 ^ -1) (0.010

    asked by JESS
  127. physics

    A 89.0 N grocery cart is pushed 13.0 m along an aisle by a shopper who exerts a constant horizontal force of 40.0 N. If all frictional forces are neglected and the cart starts from rest, what is the grocery cart's final speed?

    asked by ed
  128. Biology

    If you inherited an allele for blue eyes from your mother and an allele for brown eyes from your father, you are A) tetraploid B) homozygous C) haploid D) heterozygous I got D marked wrong, I'm so confused. Thanks.

    asked by estela
  129. kindergarten

    What is a vat?

    asked by britney
  130. english

    what is a lark?

    asked by danny
  131. algebra, help please?

    So the problem is y-2=y+2 Would I subtract 2, or add the two? because i know you have to do something with the two, but I have no idea what.. Thank you!

    asked by Allyson
  132. ap physics

    A 1.20*10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.350. What should be the magnitude of P, so that the net work done by it and the kinetic

    asked by Anonymous
  133. Algebra check/help?

    So, for this one, it is 2x-14=3x+6 Can someone please explain to me how they would solve this problem? I think you would add 14 to the 6, but I'm not sure..

    asked by Allyson
  134. Algebra, check.

    10z-4=10z-2 So I subtract 4 from the 2 right? and 10 from the ten, but then itd be 0=2 There is no soloution for this problem.. correct?

    asked by Allyson
  135. Chemsitry

    Calculate the weight of KHP that will react with 25mL of .1M NaOH

    asked by Sierra
  136. physics

    A 1.20*10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.350. What should be the magnitude of P, so that the net work done by it and the kinetic

    asked by peter
  137. social studies

    Why did the Sumerians set up governments?

    asked by Danny
  138. chemistry-calorimetric

    Develop a detailed calorimetric method for determining the temperature of the warm water sample. Materials: Hot water sample of unknown temperature, Styrofoam cups with cardboard lid and stirrer, Thermometer, Pipets and burets, balance, ice, cold water,

    asked by Cerra
  139. physics

    A skier of mass 75.0 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 60.0 m up a 35° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?

    asked by ed
  140. Astronomy

    We can calculate the kinetic energy of any moving object with a very simple formula: kinetic energy = 1/2 mv^2 ,where m is the object's mass and v is its velocity or speed. Table Energy Comparisons shows that metabolizing a candy bar releases about 10^6

    asked by Isabelle
  141. Intro to business

    the resurgence of us manufacturing firms in recent years can be credited to

    asked by april
  142. PROBABILITY

    A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?

    asked by JHONY
  143. calculus

    find dx/dy implicitly from √(x+y) = 1 + (x^2)(y^2). then solve for dx/dy explicitly.

    asked by Sasha
  144. chem- ion

    naming chemical compounds. I don't really get how you get the symbol from the word or the other way around for polyotomic ions so.. here are some examples that a website gave me: this is wut the site said to do:(Its confusing to me) The name of the

    asked by claire
  145. Probability

    A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?

    asked by JHONY
  146. Probability

    A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?

    asked by JHONY
  147. calculus

    show limit x to 1 (x^2)sin(1/(x-1)) = 0

    asked by confuzzled
  148. English/ Language Arts

    Name the complete subject and the simple subject in the sentences. 1. The ocean view is magnificent. Complete Subject - The ocean view Simple Subject - view 2. The average winter temperature is 55 degrees F. Complete Subject - The average winter

    asked by Calel Stephens
  149. science

    What are four things that organisms compete for, to meet their needs?

    asked by kyli
  150. physics

    A driver of a 7550 N car passes a sign stating "Bridge Out 25 Meters Ahead." She slams on the brakes, coming to a stop in 10 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and assume

    asked by jesse
  151. Algebra, help me?

    1/4(8j-3)=2j-3 I know you distribute first, but then I don't exactly know where to go from there. Help would be appreciated. Thank you very much. -Allyson

    asked by Allyson
  152. math

    when doing decimoles and multiplying them by whole numbers...for example 4.7805 multiplyed by 1000 dose the decimole go 4places over or 8places over i don't get it please help!!!

    asked by christina
  153. physics

    A driver of a 7550 N car passes a sign stating "Bridge Out 25 Meters Ahead." She slams on the brakes, coming to a stop in 10 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and assume

    asked by jesse
  154. accounting

    below the break even point, what does every dollar of contribution margin go toward? above the break even point, what does every dollar of contribution margin go toward?

    asked by peaches
  155. science

    What is something in an experiment thst can change?

    asked by shelbie
  156. physics

    A 50.0 kg gymast hangs vertically from a pair of parallel rings. If the ropes are supported so that they make an angle of 45 degrees with the ceiling, what is the tension in each rope?

    asked by Katy
  157. accounting

    The sales department thinks it could sell the product at a slightly higher price of $45/unit, but if the price is raised, it may lose 10% if sales volume in units. What would the expected profitability be if this higher selling price/unit in fact occurred.

    asked by peaches
  158. math - Algebra

    evaluate x²(xy-x) for x satisying (13x-6)/4 = 5x+1 and y satisfying 12-y=7(y+4)+1

    asked by just.fyd
  159. Calculus

    Find the derivative of y=x(2^(4x)).

    asked by jordyn
  160. Chemistry

    The following reaction represents the decomposition of hydrogen peroxide 2H2O2 -> o2 (g) + 2H2O (l) How many molecules of water are produced from the decomposition of 3.4g of Hydrogen peroxide, H2O2? Please walk me through this one, I need more then just

    asked by Andre
  161. EDU310

    How many U.S students graduate and advance to higher education?Are there any U.S states that fair better than other

    asked by Anonymous
  162. physics

    Heather in her Corvette accelerates at the rate of (3.40ihat- 2.00jhat) m/s2, while Jill in her Jaguar accelerates at (1.00ihat + 3.40jhat) m/s2. They both start from rest at the origin of an xy coordinate system. Determine the following after 5.50 s. (a)

    asked by natalie
  163. Chemistry

    'Place the letter of the item in Column II before its best match in Column I' Column 1: 41. Unit of volume 42. unit of mass 43. unit of temperature 44. unit of density 45. .01 of a meter Column II: a. grams b. grams/cm^3 c. Kelvin d. milli e. cubic meter

    asked by mysterychicken
  164. calculus

    Find the derivative of y=t^2(5t-8)^4.

    asked by patrick
  165. physics

    An athlete throws a basketball upward from the ground, giving it speed 10.8 m/s at an angle of 64.0° above the horizontal. (a) What is the acceleration of the basketball at the highest point in its trajectory? (b) On its way down, the basketball hits the

    asked by natalie
  166. accounting

    Jones Company had 100 units in beginning inventory at a total cost of $10,000. The company purchased 200 units at a total cost of $26,000. At the end of the year, Jones had 80 units in ending inventory. Compute the cost of the ending inventory and the cost

    asked by lamyaa
  167. English

    In English I'm confused on how you would know where to put the lines of complication in a story map?

    asked by Billie
  168. PROBABILITY

    A card is drawn at random from a deck of 52 cards. What is a probability that it is a King, given that it is a face card (J, Q, K)?

    asked by JHONY
  169. Chemistry

    Determine the mass of zinc sulphide, Zns which is produced when 6.2 g of zinc and 4.5 g of sulphur are reacted. My answer was 9.26 grams of zinc sulphide are produced. I wanted to verify if this was right. Please let me know. Thanks.

    asked by Rose
  170. physics

    A driver of a 7550 N car passes a sign stating "Bridge Out 25 Meters Ahead." She slams on the brakes, coming to a stop in 10 s. How much work must be done by the brakes on the car if it is to stop just in time? Neglect the weight of the driver, and assume

    asked by jesse
  171. cuyamaca

    Eddings Company had a beginning inventory of 400 units of Product XNA at a cost of $8.00 per unit. During the year, purchases were: Feb. 20 600 units at $9 Aug. 12 300 units at $11 May 5 500 units at $10 Dec. 8 200 units at $12 Eddings Company uses a

    asked by ali
  172. math

    I have more ones than tens. The value of me tens digit is 80. What number am I?

    asked by Alexis
  173. Chemistry

    The density of a 1.0 M solution of NaCl is 1.04 g/mol and its specific heat, c, is 3.60 J/C*g. How much heat is absorbed by 31.4 mL of this solution if the temperature rises from 18.6 C to 29.7 C?

    asked by Sarah
  174. math

    if you simplify the expression 3x+4(x-2)-3x into the expression 3x+ 4x -8-3x, what property did you use associative property commutative property distributive property identity property

    asked by chris
  175. Physics

    Another toboggan with a mass of 30 kg, is being accelerated at 40 cm/s^2 by two boys pulling ropes at an angle of 20(degrees) with the direction of travel. They are each pulling with a force of 25 N. a) what is the force of friction? b) if, after reaching

    asked by Mayson
  176. US History

    29. The Greenback party and Farmers' Alliances both called for a. putting more money into circulation b. opening American markets to foreign crops c. cutting back on protests d. repealing the Sherman Silver Purchase Act I can't seem to find the answer for

    asked by mysterychicken
  177. Spanish

    El alumno o el profesor? complete each sentence with the appropriate word. 1. En una escuela americana "A" es una nota ________ y "f" es una nota ________. 2. El profesor_________; el alumno ________ la pizarra. i think number 1 is buena & mala but im not

    asked by jessica
  178. language

    how should I use having been introduced to the guest of honor in a sentence

    asked by judson
  179. Physics

    Another toboggan with a mass of 30kg is being accelerated at 40 cm/s^2 by two boys pulling ropes at an angle of 20degrees with the direction of travel. They are each pulling with a force of 25N. a) what is the force of friction? b) if, after reaching a

    asked by Mayson
  180. algebra

    5g+4(-5+3g)=1-g my solve(which didn't work tried 5 times) 5g-20+12g=1-g 17g-20=1-g 18g-20=1 18g=21 g=21/18=7/6 where did i go wrong?

    asked by Jake
  181. algebra I

    9n +12=6n +54 what is n and how do you get it

    asked by Daniel
  182. Algebra

    Can someone help me with this problem, plz.... 12b^8/ 3b^4=

    asked by Ally
  183. US History

    Just need this one checked real quick: 43. The U.S's most valuable export in the early 1800s was a. cotton b. slaves c. tobacco d. grain A? Thanks -MC

    asked by mysterychicken
  184. math

    A landscape designer had 50 2/3 pounds of seeds that she wishes to parcel into packages of 2/3 pound each. How many packages can she make?

    asked by robert
  185. math

    what is 22/33 in simplest form or is it just that?

    asked by aj
  186. Life...

    Do i need to take precal and physics in highschool to become a nurse, dentist, or doctor?

    asked by Bianca
  187. social studies

    what do u call the people living in the Arctic? Arctician or something?

    asked by faf
  188. US History

    Hmm..I can't seem to get this one. 34. Which of the following contributed to the cattle ranching boom? a. technical advances b. falling crop prices c. expansion of the railroads d. dry farming I think it's B? Thanks -MC

    asked by mysterychicken
  189. math

    At Irv's Cycle Rental Shop, Irv renst all knids of cycles: unicyles, tandem bikes, regualr bikes, and even tricycles for little kids. He parks all the cycles in front of the shop with a helmet for each rider strapped to the cycles. This morninf Irv counted

    asked by Katherine
  190. math

    if you jog 72 miles in 3.5 hours what is your average speed?

    asked by tedeja
  191. ALgebra

    find an equation of the line containing, (4,-2) and parallel to the line containing (-1,4) and (2,-3) find an equation of the line containing (-1, 3) and perpendicular to the line containing (3,-5) and (-2,7)

    asked by jose
  192. english-literature-frankenstein

    What supernatural elements does Mary Shelley include in chapters 1-8 of frankenstein? Include textual evidence, please.(:

    asked by Ana_x00
  193. spanish

    what does que te encatanda mas,el chocolate o la pizza mean

    asked by bob
  194. chemistry

    If 50.0 g of NaCl is mixed with 100.0 g of water at 80.0 °C, how much will not dissolve?

    asked by Blue
  195. naming compounds

    write the name of this compound:(charge) Pb(2+)Cl2 is lead(II)chloride so.. i just need to know if my answers correct. thanks:)

    asked by claire
  196. English

    Can you please check these few sentences I'm not sure of. Thank you for all. 1)My work day starts at 7.55 a.m. I nearly always have to drive my child to school. It usually takes me ten minutes to get there (OR: It's a ten-minute drive.) After that I drive

    asked by Franco
  197. chemistry

    If 15.0 g of KCl is added to 100.0 g of water at 30.0 °C, how much more must be added to saturate the solution?

    asked by pinky
  198. physics 11

    A river has a current of 5 m/s. A boat tries to head directly across at 4 m/s. When the boat reaches the other side it is 30m downstream. How wide is the river ?

    asked by joshua
  199. algebra I

    5x +7= 4y-6 solve the equivalent equation for x thank you

    asked by Daniel
  200. algebra

    the ratio of two integers is 9:7. their sum is 1024. find the two integers.

    asked by stephanie
  201. social studies

    I am a member or a community, I have a role in the community, and follow its rules What am I?

    asked by Molina
  202. Math

    3/4 + 2/3

    asked by Aly
  203. english

    It is not what an author says, but what he or she whispers that is important, what does it mean? what are some short story is connect to this quote that can write a critical lens essay

    asked by 000
  204. MATH PLEASE HELP

    A certain molecule contains twice as many atoms of hydrogen as oxygen and one more atom of carbon than hydrogen. If there are 31 atoms altogether in the molecule. how many atoms of carbon are there?

    asked by steph
  205. general

    Write 3 examples of different codes in our world? Example 1: morse code, example 2: ??? Please, help. Thank you.

    asked by Anonymous
  206. Global History

    Was the middle class satisfied with the steps Napoleon took to restore order to France?

    asked by danny123
  207. Pre- algrbra

    What property is c to the seventh power x 1= c to the seventh power?

    asked by Amanda
  208. chemistry

    what are two resonance structures for SPN

    asked by Anonymous
  209. math

    3/4 + -2/3.

    asked by Aly
  210. chem-Am I Right????

    For 0.10 M ZnCl2 and 0.10 M KAl(SO4)2, find:? a) spectator ions (if any) b) ions expected to hydrolyze (if any) c) net ionic equation for hydrolysis d) expression for equilibrium constant (Ka or Kb) e) value of Ka or Kb My answers are: a) Cl- ; K+ ; SO4^2-

    asked by Isabella
  211. Chemistry

    the total pressure in the vessel is 199kPa. How much pressure does nitrogen exert on helium if it had a pressure of 94 kPa?

    asked by Guy
  212. Chemistry

    Determine the type of radiation: a frequency of 5.6 mhz

    asked by Jennifer
  213. math am I right?

    -3/10 - 5/100 = 35/100?

    asked by Aly
  214. physics

    a kid goes down a slide, accelerating at 1 m/s^2 for 3 seconds. if he starts at rest, how long is the slide ? this is the equation i have but i need Xi which i have NO clue what it is .. Xf= Xi+ 0m/s(3s)+1/2 (1m/s^2)(3^2s) solving for Xf ... need Xi

    asked by christine
  215. physics

    find the frictional force between an air hockey puck and the table, assume u air = 1.8 X 10^-5 kg/ms, the puck is 0.013 above the table, the puck has an area of 25 cm^2

    asked by emily
  216. To Ms. Sue

    Ms. Sue, I had a question yesterday about stress, and I still require help on it. I'll give you the question as it is written to me. When you took the Multiple Intelligences quiz, what type of intelligence was rated the highest? How do you think this

    asked by Sara
  217. ALgebra

    use slopes to show that the triangle with vertices (-2,7), (6,9) and (3,4) is a right triangle. write an equation of the line that has y-intercept 5/7 and is parallel to the graph of 6x-3y=1

    asked by jose
  218. Economics

    Explain how an economist could use the slope of the yield curve to analyze the probability that a recession will occur and why the spread may matter.

    asked by Tracey
  219. Economics

    One year ago, you bought a bond for $10,000. You received interest of $400 at the end of the year, as well as your $10,000 principal. If the inflation rate over the last year was five percent, calculate the real return. Show your work

    asked by Tracey
  220. Economics

    Suppose that the price of a stock is $50 at the beginning of a year and $53 at the end of the year, and it pays a dividend of $2 during the year. Calculate the stock’s current yield, capital-gains yield, and the return. Show your work for three separate

    asked by Tracey
  221. geometry...HELP!!

    point A and B on the grid represent justin's house and the theater, respectively. if each unit reprsents 1 mile approximately how far must justin drive to get to the ttheater?

    asked by sara
  222. chemistry

    Calculate the density of chlorine gas in g/L, at STP I'm coming up with 3.2g/L (by using 70.9 g Cl2) Cl gas is diatomic, correct? Is this correct?

    asked by lavonne
  223. social studies

    How does advertising influence people’s purchases?

    asked by Betty
  224. US History

    38. Jackson defended the spoils system by claiming that it prevented a. partisan politics b. control of government by the rich c. minority rule d. an imbalance of power ...D? 39. The goal of the Lecompton constitution was to a. establish slavery in Kansas

    asked by mysterychicken
  225. Chemistry

    What do they mean by central metal, charge on metal ion and Abbreviated electron configuration for the electron ion? And I'm looking at CoCl2·6H20.

    asked by Anonymous
  226. Chemistry

    Thank you for your help. I did want to clarify why you are only calculating the Molar Mass for H2 and not the molar mass for H2O (or even H2O2). I'm not sure why you did this. Please clarify. See below: The following reaction represents the decomposition

    asked by Andre
  227. math

    3 3/4 + 2 1/4

    asked by Aly
  228. Math

    Ferroza can buy a 24 ounce bag of ferret food for 1.19 or she can buy a 36 ounce bag for 2.89. which is the better deal?

    asked by Brooke
  229. chemistry

    Calculate the pressure of 0.55 mol NH3 gas in a 2.00 L vessel at 25 celsius, using ideal gas law.

    asked by lavonne
  230. algebra

    Find two consecutive even integers such that the sum of the larger and twice the smaller is 62. PLEASE HELP I DON'T GET IT!/:

    asked by desiree
  231. Social studies

    I am trying to find the population graph/growth of India. I need the chart to be in google images and it should be accurate. The years should be till 2000-2008. It has to be correct. Please help me find one. Thank you!

    asked by Pratigya
  232. chemistry

    How many grams of CO2 are contained in 550 mL of the gas at STP I've worked all of these questions and I'm trying to see if I'm right, and if not, where I went wrong.

    asked by lavonne
  233. arithmetic

    What % of 250,148,571 is 136,800,000?

    asked by Anonymous
  234. english

    Explain the process by which Hrothga wins power and fame.

    asked by stephon
  235. Geometry

    ef=2x-15, fg=3x-15,eg=23 find the values of x,ef and fg

    asked by Cameron
  236. chemistry

    A 1.325 g sample of an unknown vapor occupies 386 mL at 114 celsius and 946 mmHg. The simplest formula of the compound is NO2. What is the molecular formula of the compound? (I have N2O4, is this correct and if not, why not? We never went over this type of

    asked by lavonne
  237. H. P short essay Q.

    why are axon terminals sometimes called "biologist transducers"?

    asked by Gigg
  238. math

    how would you solve this 31=2*x+c+1

    asked by steph
  239. Chemistry

    When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are produced. What volume of 9.0 M HCl is required to react completely with 5.00 g of magnesium?

    asked by Mattie
  240. math

    Analogies: 54:45 :: 79: ______

    asked by Robert
  241. chemistry

    what is between air molecules? a) air b) dust c) pollutants d) oxygen e) nothing

    asked by thomas richards
  242. social studies

    where is the international date line located

    asked by jhoin
  243. 6th grade

    how to solve equations containing integers?

    asked by jose
  244. 7th grade

    determine your distance traveled and displacement if you walk 100m foward than 35m

    asked by Gabriella
  245. English

    What is an explanation when someone says: "The our crime's worse than a murderer's. His act puts him outside the law, but keeps the law intact. Ours would weaken the law." P.s. These men are forming a posse to hang a gang that killed one of their townsmen.

    asked by Samantha
  246. Algebra 2

    two people, john and mary, are 200 miles apart and leave at the same time to meet. They are driving toward each other at constant rate on the same straight road. John is traveling at 45 mph and Mary is traveling at 35 mph. When they meet, how many miles

    asked by Sarah
  247. social studies

    how many state were on the us flag in 1950?

    asked by nat
  248. 4th grade

    what is a perpidicular ray?

    asked by zoey
  249. math

    10 1/8 + 3 3/4 is it 13 and 7/8 or no?

    asked by Aly
  250. Physics

    A marble rolls off a table with a horizontal velocity of 1.2 m/s. The marble falls in a cup placed horizontally 0.51m from the table's edge. How high is the table?

    asked by Katsu
  251. Physics

    A projectile is caught at the same height from which it was launched. If it is caught with a velocity of -15m/s, what is the initial velocity?

    asked by Katsu
  252. Physics

    Water from a garden hose that is pointed 23° above the horizontal lands directly on a sunbather lying on the ground 3.9 m away in the horizontal direction. If the hose is held 1.4 m above the ground, at what speed does the water leave the nozzle?

    asked by Katsu
  253. Physics

    A horizontal rifle is fired at a bull's-eye. The muzzle speed of the bullet is 745 m/s. The barrel is pointed directly at the center of the bull's-eye, but the bullet strikes the target 0.020 m below the center. What is the horizontal distance between the

    asked by Katsu
  254. Physics

    A car drives straight off the edge of a cliff that is 58 m high. The police at the scene of the accident note that the point of impact is 126 m from the base of the cliff. How fast was the car traveling when it went over the cliff?

    asked by Katsu
  255. Physics

    A jetliner is moving at a speed of 270 m/s. The vertical component of the plane's velocity is 39.8 m/s. Determine the magnitude of the horizontal component of the plane's velocity.

    asked by Katsu
  256. anatomy

    What portion of the large intestine lies directly below the stomach and left hemidiaphragm

    asked by Anonymous
  257. math

    1 5/9 - 1 2/9 = -1 7/9 yes or no?

    asked by Aly
  258. math

    7/10 of the population is 175104000 what is the total population?

    asked by jesus a
  259. To Ms. Sue

    Ms. Sue, I just added more information to my answer. Can you check to see if it's good, thanks a lot. When you took the Multiple Intelligences quiz, what type of intelligence was rated the highest? How do you think this affects how you deal with stress?

    asked by Sara
  260. physics

    A 5.0 kg object moving in the +x direction at 5.5 m/s collides head-on with a 3.1 kg object moving in the -x direction at 4.0 m/s. Find the final velocity of each mass for each of the following situations. (Take the positive direction to be +x.) The bodies

    asked by Cassia
  261. math...

    how would u solve 212.50=20*x + 30*y

    asked by JENN
  262. chemistry

    give 2 commercial or practical uses of this flame color phenomena.

    asked by Kassandra
  263. Physics

    How do you find acceleration when given Force and Time?

    asked by Katsu
  264. calculus

    show limit x to 1 (x^2)sin(1/(x-1)) = 0

    asked by confuzzled
  265. calculus

    find the limit of f'(x) = 1/(√x) using the limit definition of derivative as x approaches 0.

    asked by John
  266. calculus

    find dx/dy implicitly from √(x+y) = 1 + (x^2)(y^2). then solve for dx/dy explicitly.

    asked by Sasha
  267. english

    Explain the process by which hrothgar wins power and fame?

    asked by sekou
  268. Liberal Arts Math

    How many different groups of 7 students can you create from a class of 20 students? How many different results could there be for 10 political candidates running for the same office in the upcoming election?

    asked by Jeannie
  269. Chemistry

    Just need these last few checked: 6. Elements in a group on the periodic table have similar properties. -False? 7. Nonmetals are ductile materials.- False? 11. Matter can be created or destroyed using common chemical changes.- True? 13. 346.7500 has five

    asked by mysterychicken
  270. physics

    whats the acceleration of a car traveling 402 meters in 6 seconds

    asked by memo
  271. geometry

    AC = 3x + 1, and BD = 4x + 2

    asked by justice
  272. physics

    A stone is dropped from a 75 m high building. when this stone has dropped 15m, a second stone is thrown downward with an initial velocity such that two stones hit the ground at the same time. find a. time taken for the first stone to fall 75m. (b) the time

    asked by elaine
  273. physics

    A stone is dropped from a 75 m high building. when this stone has dropped 15m, a second stone is thrown downward with an initial velocity such that two stones hit the ground at the same time. find a. time taken for the first stone to fall 75m. (b) the time

    asked by elaine
  274. Physics

    Given a free falling object that is initially at rest, what are the objects displacement, velocity, and acceleration after 9 seconds?

    asked by Katsu
  275. Chemistry

    How do you find unpaired electrons in a metal ion in CuSO4·5H20?

    asked by May
  276. Chemistry

    Is the central metal of KMnO4 be Mn?

    asked by Anonymous
  277. physics

    A car starts from rest on a curve with a radius of 110 m and accelerates at 0.600 m/s^2. How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.30 m/s^2?

    asked by Julian
  278. Math

    how do I solve this problem? -(6x+1)

    asked by Ayzure
  279. english

    cub scout is to eagle scout as rookie is to

    asked by tina
  280. english

    edith for spelling and punctuation? its a good idea to put the matches into a waterproof case before you put them into your pack?

    asked by tina
  281. Epidemiology

    Design the appropriate 2x2 table, calculate and interpret the appropriate measure of association. You suspect that the association between alcohol use and CHD might be confounded by smoking. You collect the following data: Smokers Non-Smokers CHD No CHD

    asked by Latice
  282. Simple Math Question

    two people, john and mary, are 200 miles apart and leave at the same time to meet. They are driving toward each other at constant rate on the same straight road. John is traveling at 45 mph and Mary is traveling at 35 mph. When they meet, how many miles

    asked by Anonymous
  283. math 4 grade

    Some poeple believe that Jan 1,2000is the first day of the 21st century.Other poeple beleive that the honor belongs to the Jan 1,2001.But everyone should agree that Jan 1,2002 is the first"sum-day" of the new century when you write out that date in

    asked by Thanh
  284. Chemistry

    The Bohr model stops representing correct atomic structure when? Why? What does this mean for remaining atoms? How does Bohr's model relates to the periodic table?

    asked by Katie
  285. college

    describe how statistics can be important and influential in the nursing profession. Provide at least two examples where you have observed statistics to contribute positively to the needs of the customer.

    asked by Elena
  286. Chemistry

    You write the electron structure like this. 1s2 2s2 2p6 3s2 3p6 3d10 4s1 is the neutral Cu atom. Remove the two outside electrons to make the Cu^+2 ion. That leaves us with 3d9 as the outside and since that is an odd number, one electron must be unpaired.

    asked by Anonymous
  287. chemistry

    calculate the frequency of light that has a wavelength of 103 nm

    asked by adrian
  288. geometry

    Paula built a play area for her dog in the shape of a regular pentagon. If the perimeter is 35 feet, what is the length of each side of the play area?

    asked by Mika
  289. ap chemistry

    A solution is prepared in which a trace or small amount of Fe+2 is added to a much larger amount of solution in which the [OH]- is 1.0M*10^-2. some Fe(OH)2 precipitates. the value of Ksp for the salt is 8.0*10^-10. assuming that the hydroxide ion

    asked by brian
  290. biology

    Which of these was not derived from an ancestral alpha proteobacterium? mitochondrion kinetoplast chloroplast hydrogenosome mitosome

    asked by Sarah
  291. MATH

    MAKE A TALL CHARTT FOR THE NUMBER OF STUDENTS IN THE THIRD FOURTH AND FIFTH GRADE CLASSES: 26,25,27,27,26,28,27

    asked by SYDNEY
  292. math

    could someone show me how to write this or set up this equation?2 ships sail from the same port, one sails dew east at 15 mph and the second sailed dew south at 20 mph, how far apart are the ships after 3 hours?

    asked by Greg
  293. english

    Please tell me if I should use to or too in the following sentence: Anthony knew all (to, too) well that he shouldn't have eaten a third piece of lasagna.

    asked by julie
  294. advanced history

    I need a website that will tell me everything about The Independence Debate:Consequences for the Colonies?

    asked by madison
  295. 9th grade

    how are you suppose to respond to ¿quién es ella? the formal way in spanish?

    asked by kiki
  296. math116

    I find from the first equation that x = 3y and plugging in to the second equation we get o.2y+37(-3y)=23 0.2y-111y=23 -110.8y=23 y=-23/110.8 x=69/110.8 need help to understand why the elimination process in not work in this linear equation?

    asked by unknown
  297. algebra

    please help me solve 1/3(6x-3y)-1/2(8x-4y)

    asked by Sav
  298. chemistry

    what is the net ionic equation for manganese sulfide and hydrobromic acid?

    asked by sandra
  299. altgeld

    the base of rectangular prism has a length of a m and a width of 4 m. if the volume is 64 cubic meters, what is the height of the prism?

    asked by lasean
  300. materials engineering, essay topics

    I have to write a research paper and here is the topic. The paper should be on the use of a new or existing material in a new or unique way. It could also llok at a new or unique way of forming or processing a material. Basically, when i say material, it

    asked by Anonymous
  301. math

    define standard form

    asked by lisa
  302. English

    1. I am looking for a dress to wear to the party. 2. I am looking for a dress which I will wear to the party. (Are both the same? What does 'to the party' modify? Is it 'dress'?)

    asked by rfvv
  303. Physics

    How come a heavy truck and a small car can both travel safely at the same speed around an icy, banked-curve road? I would think that since mass is increased, normal force is therefore increased, and force of friction is therefore increased. And since the

    asked by Hannah
  304. math

    Sam wants to make concrete blocks that are 24 inches by 24 inches by 4 inches thick. How man blocks can he make from 1 cubic yard of concrete

    asked by carolyn
  305. English

    1. I have broken a window. (In this sentence, does 'the have pp' represent 'experience' of 'result'? Is the window still broken or not?)

    asked by rfvv
  306. Simple Subjects

    Complete subject of each sentence and simple subject. Mrs. Marcus told our class about Valentine's Day.

    asked by Rylan
  307. math

    how do you calculate the lengths of the midsegment

    asked by Ted
  308. Human Physiology Short essay Question

    why are axon terminals sometimes called "biologist transducers"?

    asked by Gigg
  309. History

    what compromises were made after shays rebellion?

    asked by Iszy
  310. algebra

    all number less than 3 units from 0 I need to write inequality represents each situation

    asked by linda
  311. AP Chemistry

    I don't understand this question and answer can someone help me? In order to exhibit delocalized pi bonding, a molecule must have . At least resonance 2 resonance structures.

    asked by Ana
  312. Physics

    A cannon shoots a shell at 42 degrees and at a velocity of 3000 m/s. How far does the shell travel in the x-direction?

    asked by Anonymous
  313. statistics

    If random samples, each with n = 36 scores, are selected from a normal population with m = 80 and s = 18, how much difference, on average, should there be between a sample mean and the population mean?

    asked by Anonymous
  314. algebra

    23-7(x+3)+5x=10

    asked by Anonymous
  315. math

    1,2,4,8,16,32,64 in exponential form?

    asked by Aly
  316. math

    in a bag of red and black jellybeans, 136 are red and the remainer are black jellybeans. If 15% of the jellybeans in the bag are black, what is the total number of jellybeans in the bag?

    asked by Marie
  317. CRT 205

    Crt 205 Vacuum Sales Digital Story Text Axia College Material Text of the Vacuum Sales Digital Story This text provides the script of the Vacuum Sales digital story. Use this text as an alternative or supplement to viewing the digital story itself. Script

    asked by Unknown
  318. College Physics

    Conceptual Question: Many people believe that a vacuum created inside a vacuum cleaner causes particles of dirt to be drawn in. Actually, the dirt is pushed in. Explain.

    asked by Samantha
  319. English

    1. I am looking for a dress to wear to the meeting. 2. I am looking for a shirt to wear to the birthday party. 3. I am looking for suits to wear to the conference. (Are they all grammatical? Why do we have to use the preposition 'to' before a place? Can we

    asked by rfvv
  320. 5th grade math

    Ray asked his class about the number of cousins they each had. what was the mode for the number of cousins? 12,15,7,12,1,17,3,5,5,12,13,7,11,9,20,4,3,7,2,10,14,5,8,7,11.__________ Round 30.089 to the nearest tenth._____

    asked by pat
  321. math

    A leach free area for dogs is to be created in a field behind a recreation centre. what length of fencing will be required, if the plans show an irregular pentagonal area with vertices at (2,0), (1,6), (8,9), (10,7)and (6,0)?( one unit represents 10m)

    asked by Ted
  322. Chemistry

    In comparing the same two atoms bonded together, the greater the bond order, the shorter the bond length, and the greater the bond energy. Why is this the case?

    asked by Ana
  323. Algebra

    Find the domain of p(x)=x^+3 a) x is a real number b) x is a real number and x > 0 c) x is real number and does not equal 0 d) x is a real number and does not equal 3

    asked by Sam
  324. College Chemistry

    "What is the pH of a solution that is 0.50 M in sodium acetate and 0.75 M in acetic acid? (Ka for acetic acid is 1.85 x 10-5)." Would i use the Ka expression formula??

    asked by James
  325. math

    how do you calculate the lengths of the midsegment

    asked by Ted
  326. Chem2

    The Ksp for Ag2SO4 is 1.1x10^-5. Calculate the standard free energy change for silver sulfate dissolution at 25 degrees.

    asked by Sammie
  327. Chemistry

    What volume of each of the following bases will react completely with 24.00 mL of 0.350 M HCl? 0.100 M NaOH 0.0500 M Ba(OH)2 0.250 M KOH

    asked by Mattie
  328. College Chemistry

    The Question Is: "A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from the reagent shelf

    asked by James
  329. math

    A builder needs to connect a partilly built house to a temporary power supply. on the plan, the coordinates of the house are (50,113) and the power supply is at ()147,82). what is the least amount of cable needed? why is it likely that the builder will use

    asked by Ted
  330. Chemistry

    Sulfur (3.26 g) is burned in a constant volume calorimeter with excess O2(g). The temperature increases from 21.25°C to 28.22°C. The bomb has a heat capacity of 923 J/K, and the calorimeter contains 815 g of water. Calculate ΔU per mole of SO2 formed,

    asked by Noelle
  331. probability!

    so i am asked to find the prob of a male professor - given that he is promoted. and the stats are female promoted = 3% female not promoted - 12% male promoted 17% male not promoted - 68% and i just wrote down that it is 17% is this true? ALso, i looked up

    asked by Lauren
  332. calculus

    use implcit differenciation to find an eqaution of both the tangent line to the ellipse: 2x^2 + 4y^2 = 36 that passes through the points: 14,3

    asked by mike
  333. 5th math

    please show me an example of this one so.i can use it later to pratice the actual test next week here is the problem. complete each pattern. 17,---,--,62,--,92 39,--,--,---75,84 57,--,--,33,--,17 15,--,,--33,--,45 PLEASE FILLED OUT ALL THE BLANK FOR ME

    asked by pat
  334. trig

    how do i find six trig functions for cos(pi over 2-x)=3/5, cos x=4/5?

    asked by Anonymous
  335. Trig

    A force of 323 newtons makes an angle of 54 degrees and 20 minutes with a second force. The resultant of the two forces makes an angle of 39 degrees forty minutes with the first force. Find the magnitude of the second force. I have the answer, 814.3022,

    asked by Brittany
  336. Grammar

    The honesty of children is refreshing. Now we have to write it to show possession.

    asked by Kolten
  337. math

    A triangle has vertices P(7,7), Q(-3,-5), and R(5,-3). a. calculate the lengths of the midsegmaents b. calculate the lengths of the three side of triangle PQR. c. compare your answers in a. and b. what do you notice?

    asked by Ted
  338. math

    A leach free area for dogs is to be created in a field behind a recreation centre. what length of fencing will be required, if the plans show an irregular pentagonal area with vertices at (2,0), (1,6), (8,9), (10,7)and (6,0)?( one unit represents 10m)

    asked by Ted
  339. MATH

    Solving by graphing DQ 1 Solving by substitution Solving by elimination Which method do you think would be best to solve this system? y=10x-8 y=1/2x+5

    asked by Anonymous
  340. Calculus

    A particle moves along a line so that its posistion at any t is greater than or equal to 0 is given by the function s(t)= t^3-8t+1, where s is measured in feet and t is measured in seconds. a) find the displacement during the first three seconds b) Find

    asked by Ally
  341. College Stat

    Draw a vertical line through a normal distribution for each of the following z- score locations. Determine whether the body is on the right or left side of the line and find the proportion in the body. (a). z = 2.20 (b) z = 1.60 (c) z = -1.50 (d) z = -

    asked by jackie
  342. physics

    How many revolutions will the car have gone through when the magnitude of its total acceleration is 2.80 m/s^2?

    asked by blashhh
  343. math11

    Solve the non linear equation x^2=3x+4 graphically using a calculator, Write the equations of the graphs you used to find the solution. I got this question wrong what would be my Y1= and Y2= equations. Not sure what I'm doing wrong but whenever I have an

    asked by Juliet
  344. Chemistry

    What is the change in internal energy (in J) of a system that absorbs 0.677 kJ of heat from its surroundings and has 0.438 kcal of work done on it?

    asked by Ashley
  345. Chemistry

    What is the enthalpy change when 19.0 g of water is cooled from 33.0°C to 2.70°C?

    asked by Ashley
  346. Calculus

    a boat leaves a doct at 2:00pm, heading west at 15km/h. Another boat heads south at 12km/h and reaches the same dock at 3:00pm. When were the boats closest to each other.

    asked by Tasmina
  347. Chemistry

    A 26.7 g sample of ethylene glycol, a car radiator coolant, loses 668 J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)?

    asked by Brittany
  348. Chemistry

    One piece of copper jewelry at 101°C has exactly twice the mass of another piece, which is at 36.0°C. Both pieces are placed inside a calorimeter whose heat capacity is negligible. What is the final temperature inside the calorimeter (c of copper = 0.387

    asked by Brittany
  349. algebra

    it takes 1 cup of liquid fertilizer to make 7 1/2 gallons of spray. how much liquid fertilizer is needed to make 80 gallons of spray?

    asked by leticia
  350. Chemistry

    A 30.5 g sample of an alloy at 94.0°C is placed into 48.7 g water at 20.3°C in an insulated coffee cup. The heat capacity of the coffee cup (without the water) is 9.2 J/K. If the final temperature of the system is 31.1°C, what is the specific heat

    asked by Cory
  351. Maths---integral

    the time index t runs from a to A. if an investment produced a continuous stream of income over 10 years at a rate of $20,000 per year and the interest rate is 6% per year continuously compounded. what is the present value? what is the integral function?

    asked by May
  352. math11

    Solve the non linear equation x^2=3x+4 graphically using a calculator, Write the equations of the graphs you used to find the solution. I got this question wrong what would be my Y1= and Y2= equations. Not sure what I'm doing wrong but whenever I have an

    asked by Juliet
  353. CHEM

    How many grams of helium must be added to a balloon containing 8.00 g of helium gas to double its volume. Assume no temp or pressure change.

    asked by Lilli
  354. Chemistry

    When 33.5 mL of 0.535 M H2SO4 is added to 33.5 mL of 1.07 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted. (Assume that the total volume is the sum of the

    asked by Matt
  355. Chemistry

    Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 124 kJ is given off per mole of C2H4 reacting,

    asked by Jo
  356. algebra II

    is (8x - 20y = -40) (-2x + 5y = 30) a soultion

    asked by Tatyana
  357. PROB

    Researchers at the University of Pennsylvania School of Medicine have determined that children under 2 years old who sleep with the lights on have a 36% chance of becoming myopic before they turn 16. Children who sleep in darkness have a 21% chance of

    asked by Lauren
  358. accounting

    Corporation is considering issuing bonds on January 1, 2009, and has asked your advice concerning several matters. The firm plans to issue $800,000 of 30-year, 10 percent bonds. Bond interest payments are on January 1 and July 1.

    asked by marathoner
  359. accounting

    Corporation is considering issuing bonds on January 1, 2009, and has asked your advice concerning several matters. The firm plans to issue $800,000 of 30-year, 10 percent bonds. Bond interest payments are on January 1 and July 1.

    asked by marathoner