1. Archives
  2. 2011
  3. February

Questions Asked on
February 14, 2011

  1. CHEMISTRY

    Grams/mole benzene

    asked by dan

  2. ap chem

    If the H3O+ concentration is 10−7 M, what is the pH?

    asked by Anonymous

  3. CHEMISTRY

    Benzene equals 78.11 grams/mole

    asked by dan

  4. Native History

    what are the two "views" of King Phillips war??

    asked by cecile

  5. science

    What happens at the particle level when you put ice cubes in a glass of room temperature lemonade?

    asked by .....

  7. ap chem

    Acid rain has a pH value of 3.0, whereas normal rain has a pH value of 5.6. Calculate the ratio of the hydronium ion in acid rain to that in normal rain.

    asked by Anonymous

  8. Physics

    You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 56 km/h (35mph ). A new model of mass 1900 kg takes 0.15 s from the time of impact until it is brought

    asked by Lisa

  9. CHEMISTRY

    19. Convert 15 ppm of benzene to mg/m3 at 20 oC and 720 torr Density of a gas is g/L = P(MW)/RT (740 torr x 1 atm/760torr)(78.114g/mole)/ (.0821L atm/mole K)(293K) = 3.16g/L 1ppm =1 L Benzene/106 L of air = 1L ben/1000 m of air = 0.001 L ben/m3 = 0.00316

    asked by dan

  10. math

    a lot owner owns a corner lot , 60mx80m, .find the dimensions x, y of the largest rectangular building he can built pn his lot?

    asked by gen

  11. math

    find two numbers whose product is N^2 and whose sum is a minimum

    asked by cheryl

  12. math

    a right triangle whose hypotenuse is h mm long is rotated about one of its legs to generate a circular cone.find the radius and altitude of the cone of greatest volume.

    asked by gen

  13. govenor state

    -25+50=

    asked by Eygpt

  14. math2

    an open right circular cylindrical tank of given volume stands with vertical axis. the material of its bottom costs twice as much per unit area as that for the sides. find the most economical proportion?

    asked by gen

  15. physics

    What is the linear speed of a point at a latitude of 18.0 N?

    asked by kolin

  16. helpppppp

    what role do insulators play in preventing electric shock?

    asked by kim

  18. ap chem

    Like all equilibrium constants, Kw varies somewhat with temperature. Given that Kw is 5.02×10−13 at some temperature, compute the pH of a neutral aqueous solution at that temperature. 006

    asked by Anonymous

  19. ap chem

    What is the pH at 25C of a 0.17 M solution of the acid HClO which has an ionization constant of 3.5 × 10−8?

    asked by Anonymous

  20. ap chem

    Calculate the percent ionization of a 0.76 molar solution of acetic acid. The ioniza- tion constant of acetic acid is 1.8 × 10−5.

    asked by Anonymous

  21. ap chem

    The pH of a 0.100 M solution of a weak acid HA is 4.94 . Calculate Ka for the acid.

    asked by Anonymous

  22. Organic Chemistry

    A compound whose solubility in ethanol is 4.24g/100ml at 78c and .3 g/100ml at 0c is recrystalize by heating it at 78 and then cooling it to 0c. If we are to recrystalize a .5g of this compound in a 10ml of solvent, what is the maximum possible % recovery?

    asked by PEd

  23. English

    Can anyone give me details or tell me what else should I talk/ more information on something. I ran out of ideas/ thoughts. This is what I got. What media would you use for your communication skills to advertise? I would used the television for my

    asked by Anna

  24. Geometry altitude

    a(-2,4) b (4,6) c (-4,-4) find the equation for the altitude from each vertex of triangle abc.

    asked by Skye

  25. urgent help chemistry!!

    2H2 +O2 ---> 2H20 A container at a o degrees celcius is filled with a mixture of oxygen and hydrogen. The fastest way to establish an equilibrium is.. 1. add more H2 2. do nothing, equilibrium will occur 3. increase the temperature 4. increase surface

    asked by Anonymous

  26. ochem

    list from strongest acid to weakest acid HC(triple bond)CCH3 H2C=CH2 H3CNH2 CH4 H2O i thought the order went HC(triple)CCH3 H3CNH2 H2O H2C=CH2 CH4 but it comes out as wrong and i don't know why >

    asked by Allie

  27. science

    Calculate the pH of a solution created by mixing 200.0 mL of 0.400 M acetic acid and 200.0 mL of 1.00 M sodium acetate. Hint: The instant the two solutions are mixed what are the initial concentrations of each?

    asked by Bruce

  29. math

    A circular pond of diameter 15m is sorrounded by a path of of 2m wide find the area of the pathway

    asked by Happy

  30. math

    You have a bag of lots of red and white marbles. In the worst case, how many would you have to pull out to get two marbles of the same color? Four? Generalize by finding a formula for predicting the maximum number of marbles that you would have to pull out

    asked by Kat

  31. Accounting 280

    E15 1

    asked by mE

  32. Chemistry -Flame colors (check+help)

    What are the characteristic flame color for sodium, potassium, barium, copper, strontium, and calcium? Explain why? Ans: i know the flame colours, but for the explain why, could the below be a possible answer? The characteristic flame color is due to the

    asked by Farah

  33. Physics

    A patient has a far point of 34.6 cm and a near point of 26.0 cm. What power (in diopters) should be prescribed to give the patient normal vision for: (a) contact lenses? 1) D (b) glasses which are worn 0.9 cm away from the patient's eyes? 2) D

    asked by DJ

  34. PERSON!!!!!

    I have no money at all no credit card or checks or anything! So can someone please tell me where to get a free background check or free record check?? I really need this please!!

    asked by NEEDS HELP!!

  35. Math

    A waffle cone has a width of 7.6 cm and height of 15.2cm and a chocolate coating that is 2mm thick. What is the volume of the chocolate coating? How many of these cones if they were filled up to the brim would be needed for 400 gallons of ice cream given 2

    asked by CJ

  36. math

    what is log0.033 -log(3.3*10^-2)

    asked by mel

  37. physics

    A rectangular piece of Styrofoam of mass 3.0 kg floats with 5.0% of its volume underwater. What is the maximum mass that the Styrofoam can support without sinking?

    asked by lovzz

  38. software

    I want a conclusion on system & app. Software for my i.t. Project. Not big but small i.e. A paragraph for class 9th

    asked by Shubhangi

  40. writing

    Hilda takes an enormous amount of space, though so little time, in my adolescence. Even today, her memory stirs me; I long to see her again. She was three years older than I, and for a short while all I wanted was to look like, sound like, and dress like

    asked by jg

  41. English

    Can you please tell me if the word choice is correct? Thank you very much. 1)The play opens with the news that Macbeth has succeeded in defending Scotland from an invasion by the Norwegians. 2) While returning from his victorious battle, Macbeth and his

    asked by Mike

  42. physics

    How gravitational acceleration (g) is used to benefit mankind and the environment. How can rural people also benefit from the use of gravitational acceleration?

    asked by Winnie

  43. math

    how do you go about solving liner equiaions?

    asked by dawn

  44. child daycare

    what type of atmosphere should be created for school aged kids?

    asked by dawn

  45. global science

    Where do the cold and hot winds come from in Hawaii, Honolulu

    asked by Daniel

  46. accy 201

    i need help with adjusting and paying accrued expenses for three separate situations and also preparing an income statement and statement of retained earnings for Resource Trucking Company for December 31,2009

    asked by ann

  47. game theory

    Consider the following game. Player 2 L R U 6, 1 ........8, 3 Player 1 UM 4, 9........8, 4 DM 7, 2 ............6, 9 D 5, 4...........9, 3 (a) Is there a mixed strategy Nash equilibrium in which player 1 is placing positive probability only to strategies DM

    asked by Desperate

  48. math

    whats the equation of a line

    asked by ronan

  49. health

    what is carbon monoxide in

    asked by arielle

  51. Physical Science

    Two 125 kg bumper cars are moving toward each other in opposite directions. Car X is moving at 10 m/s and Car Z at –12 m/s when they collide head–on. If the resulting velocity of Car Z after the collision is 10 m/s, what is the velocity of Car X after

    asked by Helen

  52. trig

    Cos theta= 1/3, find the remaining trigonometric functions of the acute angle theta

    asked by Anonymous

  53. English

    Can you please check these sentences which I reworded? Thank you.(Check the word choice please) 1)I sort my rubbish (trash) into four separate bins which are located in a kitchen cupboard under the sink: one is for plastic, one is for paper; one is for

    asked by Mike

  54. Math

    Solve for X. X^3=27 x = 3 because 3 * 3 = 9 and 9 * 3 = 27. Correct? -------------------------------------- [x]= 16 X = 4^3 because 4 * 2 = 8 and 8 * 2 = 16. Correct? -------------------------------------- (x-2)^4=16 I need help on this one!

    asked by Martha

  55. business

    can someone help me with some information on each one of this. Employee Receives Either Rewards or Punishments Employee Identifies Need Employee searches for ways to satisfy these needs Employee Reassess Need Deficiencies Employee Performs Employee Selects

    asked by Denese

  56. math geometry

    if triangle ABC is a right triangle.If side AC=5 and side AB=10,what is the measure of side ABC?

    asked by Anonymous

  57. Economics

    Some games of strategy are cooperative. One example is deciding which side of the road to drive on. It doesn’t matter which side it is as long as everyone chooses the same side. Otherwise, everyone may get hurt. Driver 2 Left Right Driver 1 Left 0,0

    asked by Michael

  58. geometry

    If AB is opposite AC and AC is opposite AD , what can you conclude? Explain.

    asked by Kim

  59. Math

    The letters A,B,and C represent three different digits. Determine the number ABC if ABC + ACB ---------- BCA

    asked by Devin

  60. Math

    Three brothers divide 17 candy bars. The oldest child gets 1/2, the middle child 1/3, and the youngest child 1/9. So that they do not have to cut any bars, Mom provides an extra one. The oldest child then takes 9 candy bars, the middle child 6, and the

    asked by Devin

  62. Math

    Let f(x)=ax^5+bx^3+cx+9, where a,b, and c are constants. If f(6)=17, determine the value of f(-6).

    asked by Devin

  63. Math

    When the waiter was asked to slice the 16-inch (in diameter) pizza into exactly 4 slices of equal size, he decided to do so using concentric circles rather than radial slices. Determine the radii of each of the three cuts he had to make.

    asked by Devin

  64. Math

    A circular tablecloth is draped over a rectangular table so that the center of the cloth is directly above the center of the table. The table is 6 X(times) 2sqrt(3)feet, and the cloth has a radius of 2 feet. What is the area of the portion of the

    asked by Kate

  65. chemistry

    why is it recommended to carryout iodometric titrations as quickly as possible and to get the first endpoint

    asked by karthika

  66. Basic Math

    I need help adding fractions with different denominators. Here is the problem... 1 - 1/2 + 1/3 - 1/4 + 1/5 - 1/6 I can see that the demoninators increase. Since they are both addition and subtraction, how do I do this problem? Thanks, Walter, New York.

    asked by Walter

  67. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  68. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  69. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  70. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  71. algebra

    If you enter Interstate 40 at mile marker 23 in Sayre, Oklahoma, how far would you need to travel to reach mile marker 125 in El Reno, Oklahoma? After reaching El Reno, you might worry that your vehicle is running low on fuel. You know that your vehicle

    asked by kathy

  73. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  74. calculus

    2 forces F1 = 2i-3j and F2 = 3i + 12j are applied at a point. What force F must be applied at the point to counteract the resultant of these 2 forces?

    asked by Donny

  75. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  76. algebra

    How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation?

    asked by kathy

  77. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  78. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  79. social studies

    In the early colonization of both New France and New England, the French and English brought new ideas and ways that were strange to the Native Americans who already lived there. Even though, both Eur

    asked by chris jones

  80. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  81. maths

    solve for x from (0.008)^x=1/25 i'm confuse help me

    asked by Myk

  82. social studies

    what were the conflicts between native american and europeans

    asked by Ben w.

  84. Amazon

    What services do fulfill ment stations provide to amazon?

    asked by Anonymous

  85. social studies

    The roles of key historical figures

    asked by chris jones

  86. chemistry

    19. Convert 15 ppm of benzene to mg/m3 at 20 oC and 720 torr Density of a gas is g/L = P(MW)/RT (740 torr x 1 atm/760torr)(78.114g/mole)/ (.0821L atm/mole K)(293K) = 3.16g/L 1ppm =1 L Benzene/106 L of air = 1L ben/1000 m of air = 0.001 L ben/m3 = 0.00316

    asked by dan

  87. geometry

    ABCD is a rectangle. A is the point (0,1). c is the point (0,6) the equation of the straight line through A and B is y=2x+1. (a)Find the equation of the straight line through D and C

    asked by Anonymous

  88. math

    The equation of the line is 6y+5x=15 The point (-12,k) lies on the line. Find the value of k.

    asked by Anonymous

  89. math

    it is always possible to draw a circle which passes through all four vertices of a rectangle. Explain why.

    asked by Anonymous

  90. math-inequalities

    Hi, I am having some problems with inequalities. It is asking us to solve and graph on a number line and then write it in interval notation and set notation. X>2 and X>4 I graphed them in a number line already and i have the following: Interval notation

    asked by phobia

  91. Economics

    Rank in order from best to worst, the economic systems(command, market and mixed) according to which, in theory, best attempts to meet the conditions of The Human Development Index. Why did you rank them this way. I am thinking (in theory): 1-command

    asked by Jeff

  92. physics (centripetal acceleration)

    The second hand and the minute hand on one type of clock are the same length. Find the ratio (ac,second/ac,minute) of the centripetal accelerations of the tips of the second hand and the minute hand.

    asked by Gina

  93. physics!

    A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum

    asked by Gina

  95. physics??

    The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the plane of the equator. Assuming the earth is a sphere with a radius of 6.38 x 106 m, determine the centripetal acceleration of a

    asked by Gina

  96. Physics AP

    A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 27.8 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 196 m), the block swings

    asked by Gina

  97. physics1

    A 850-kg race car can drive around an unbanked turn at a maximum speed of 61 m/s without slipping. The turn has a radius of 160 m. Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 11000 N on the car. (a) What is

    asked by Gina

  98. 8th grade Algebra

    In a drawing for a dvd player, there are 100 tickets in a box.Five of the cards are marked with a star and the rest are marked with an X. To win, Carmen must draw two cards, without replacement, both of which are marked with a star. What is the probability

    asked by Elizabeth

  99. Calculus

    If a figure shows a function g(x) and its tangent line at the point B=(2,6.8). If the point A on the tangent line is (1.94,6.87), fill in the blanks below to complete the statements about the function g at the point B. g(___) = ______ g(___) = ______

    asked by Cecille

  100. chemistry

    can someone tell me how to draw the condensed structure for 4-ethyl-3,3,4-trimethyloctane and 2-methyl-5-(2-methylpropyl)nonane

    asked by jessie

  101. Principles of Business

    Approximately how many people work in the: Finance Department? Sales Department? Purchasing Department? Personnel Department? Production Department? Marketing Department? Advertising Department? Legal Department? Administration Department?

    asked by kerrae-rae

  102. managerial economics

    assuming that the firm's goal is to maximize present value of the profits in the subsequent 5 years, which of the following flows of profit would achieve that goal? Justify your answer. Note that the flows are represented by 5-tuples, i.e. five number each

    asked by sheila

  103. Amazon

    What services do fulfill ment stations provide 4 amazon? They provide warehousing and order-fulfillment for third-party sellers?

    asked by Anonymous

  104. Math

    I need to have 20,000 in the bank after 1 year can you tell me what my initial deposit must be if I have a intrest rate of 4% a year.

    asked by Jones

  106. english 101

    i need help on healthy eating what 3 credible sources from the internet

    asked by pat

  107. Amazon

    what is amazon exsclusive?

    asked by Anonymous

  108. math

    How much money must I start out with if I want to end up with 20,000 over 5 years with and intrest rate of 5% a year.

    asked by Smith

  109. 8th Grade Algebra

    If Julie draws a card from a standard deck of well-shuffled playing cards, what is the probability that he draws either an ace or a heart?

    asked by Elizabeth

  110. english 101

    Identify the topic and three subtopics for healthy eating

    asked by pat

  111. Math

    Factor Completey: f(x)= x^7 +2x^6 -8x^5 -10x^4 +19x^3 +8x^2 -12x

    asked by Chris

  112. physics

    A crow sits on a clothesline midway between two poles as shown. Each end of the rope makes an angle of θ = 16° below the horizontal where it connects to the pole. If the combined weight of the crow and the rope is 8.4 N, what is the tension in the rope?

    asked by nate

  113. psych

    Language Paper (12 points): This paper should be posted as a Word attachment in the Assignment Section and should be consistent with APA guidelines. Prepare a 1050 to 1400-word paper in which you examine language as it relates to cognition. Address the

    asked by jo

  114. algebra

    Add x^2+13x+x^2-10x x^2-7x x^2-7x

    asked by dee

  115. algebra

    subtract x-8=2/7 x+8

    asked by dee

  117. Math

    Theresa's company just bought 18 new computers. She was told that there would be a random drawing to see which employees got one of the new computers. If Theresa has 46 coworkers, what is the probability that she will get one of the new computers?

    asked by Mark

  118. English

    As I'm not a native speaker, I would like to know how to express my sentences in American English. Thank you very much for your help. 1)I sort my rubbish (trash) into four separate bins which are located in a kitchen cupboard under the sink: one is for

    asked by Mike

  119. algebra

    (6^2)^3

    asked by dee

  120. college algebra

    add 1 + 9 x+7 5x

    asked by bill

  121. 8th Grade Probability

    A box contains 6 red balls, 4 white balls, and 5 green balls. If three balls are drawn in succession without being replaced, what is the probability that they are drawn in the order red, white, green?

    asked by Elizabeth

  122. chemistry

    Why would it not be useful to just use pure ethanol or pure ethylene glycol as an antifreeze since their normal freezing points are -114.1 C abd -12C respectively.

    asked by redgy

  123. Calculus

    If a figure shows a function g(x) and its tangent line at the point B=(2,6.8). If the point A on the tangent line is (1.94,6.87), fill in the blanks below to complete the statements about the function g at the point B. g(___) = ______ g(___) = ______

    asked by Cecille

  124. physical science

    Atoms in a molecule are held together through shared __________.

    asked by mason

  125. world history

    007679 1. A staple food transplanted from Southeast Asia to the Mediterranean world as a result of the Islamic Empire was A. wheat. B. rice. C. yams. D. potatoes. 2. How did Alfred the Great secure his modern reputation as a state-builder? A. He gave free

    asked by heather

  126. U of M astronomy

    if a planet has a period of 1 century, what is its average distance from the Sun in AU?

    asked by pam

  128. world history

    007680 1. During the fourteenth century, Japanese women of aristocratic rank A. saw marriage customs change to their detriment. B. were transformed because of their ability to hold their own property separately from their husbands. C. became freer due to

    asked by heather

  129. world history

    007681

    asked by heather

  130. world history

    007682

    asked by heather

  131. algebra

    Glenn invested some money is a certificate of deposit (CD) with an annual yield of 9%. He invested twice as much money in a mutual fund with an annualy yield of 12%. His interest from the two investments at the end of the year was $396. How much money was

    asked by RNRH

  132. math

    How many gallons of milk containing 5% butter fat must be mixed with 100 gallons of 1% milk to obtain 2% milk?

    asked by RNRH

  133. math

    A dealer has 10,000 gallons of unleaded gasoline. He wants to add just enough ethanol to make the fuel a 10% ethanol mixture. How many gallons of ethanol should be added?

    asked by RNRH

  134. math

    Lauren drove her car for 3 hours in a dust storm. When the skies cleared, she increased her speed by 30 miles per hour and drove 4 more hours, completing her 295-mile trip. How fast did she travel during the dust storm?

    asked by RNRH

  135. chemistry

    What's the particle diagram of Carbon monoxide? Thank you

    asked by Ellie

  136. math

    Andy has 16 toy cars 2/5 are red, 3/4 are white what fraction of the cars are black?

    asked by IS

  137. algebra

    If you enter Interstate 40 at mile marker 23 in Sayre, Oklahoma, how far would you need to travel to reach mile marker 125 in El Reno, Oklahoma? After reaching El Reno, you might worry that your vehicle is running low on fuel. You know that your vehicle

    asked by kathy

  139. Calculus

    find derivative of w(x)= (23e^x)/4^x

    asked by Emily

  140. Algebra

    Use algebra to evaluate the limit lim h->0((2−h)^2−8)/h

    asked by Cecille

  141. environmental 100

    Which government agencies are involved with government-owned lands

    asked by Anita fields

  142. math

    There are two positive numbers that can be inserted between 3 and 9 such that the first three are in geometric progression while the last three are in arithmetic progression. Find the sum of those two numbers.

    asked by Sidney

  143. AlgebraII-Reiny could you please check-I'm stuck

    Sikve the following by using substitution method x=3y -5 6x-18y = -30 I got this far and I'm stuck 6(3y-5) - 18y = -30 18y - 30 - 18y = -30 -30 = -30 So this doesn't make sense anymore

    asked by JuliaAnne

  144. Derivatives

    Find the derivative of g(t)=8t^2+9t at t=1 algebraically... g'(1)= _________

    asked by Cad

  145. science

    if you weigh 100 pounds on earth than how much would you weigh on each other planet in our solar system

    asked by jack

  146. math

    Solve for x: [Sixth root of 27]+[cube root of x] = 6/(3-[square root of 3]

    asked by Sidney

  147. Math

    What is an interpet in mathmatical terms? i really need help with my homeework!

    asked by Taylor

  148. Physics

    You are the design engineer in charge of the crashworthiness of new automobile models. Cars are tested by smashing them into fixed, massive barriers at 56 km/h (35mph ). A new model of mass 1900 kg takes 0.15 s from the time of impact until it is brought

    asked by kolin

  150. Business

    What factors must be traded off by product development before introducing a new product?

    asked by Jaison

  151. English

    I forgot to include the following statements. Thank you very much for your help! 1) A camp instructor was thrown out of his raft and hit his head on the rock. 2) Though he lost consciousness, two of his students called the emergency services. 3) An

    asked by Mike

  152. physics

    omar throws a rock down with speed 12 m/s from the top of a tower. the rock hits the ground after 2 s. what is the height of the tower?

    asked by Anonymous

  153. child development

    (Penn Foster) 1- Neueon development and elaboration, which occurs between birth and age 10, is prompted by: A -aural prompts from the famiy school and environment. B-physical movement on the part of the child C- Intake of foods rich in vitamins and

    asked by Lina

  154. chemistry

    35.0 g of an organic compound dissolved in 500. g of water have a freezing point of -3.72 degrees C. What is the molecular weight of the solute?

    asked by Valerie

  155. international business

    what effect might the economics socioeconomic forces wthin south korea have on a products potential

    asked by kim

  156. physics

    Assume acceleration due to gravity=10 m/s. A ball is thrown vertically upward from top of a building with speed of 20 m/s. On the way back ball misses the building and lands on the ground. Total time the ball is in air is 6 seconds. Determine the height of

    asked by Mark

  157. probability

    I was asked to find the probaility if a board game uses the deck of 20 cards. And find how many have the number 3. I came up with 4/20 and was told that I'm on the right track but I need to find P(3 and 3) with replacement and without replacement. What

    asked by Madison

  158. general physics

    Assume acceleration due to gravity=10 m/s. A ball is thrown vertically upward from top of a building with speed of 20 m/s. On the way back ball misses the building and lands on the ground. Total time the ball is in air is 6 seconds. Determine the height of

    asked by mark matat

  159. physics

    A 3.3-kilogram block sliding down a ramp from a height of 4.5 meters above the ground reaches the ground with a kinetic energy of 35 joules. The total work done by friction on the block as it slides down the ramp is approximately: [1 d.p.]

    asked by jon

  161. General Chemistry 1

    If you heat copper sulfate pentahydrate to long or at too high of a temperature, what compound(s) is formed?

    asked by matt

  162. environmental 100

    What is a good environmental topic for my essay paper. I can't think of one. Help!

    asked by Anita fields

  163. math

    Stacy multiplied 5x9 and said the answer was 44. What two patterns could you use to show that her answer is not correct? ...

    asked by scott

  164. math

    60x30/60+30 20

    asked by pavleen

  165. geometry

    a rectangular-shaped garden has a length of 40 feet and a width of 15.how many more square feet of garden could be obtained by increasing both the length and width by 10 feet

    asked by nate

  166. math

    eight year from now. Oana will be twice as old as her brother is now. Oana is now 12 year old. how old her brother now umm 10

    asked by pavleen

  167. geometry

    the lengths of the diagonal of a rhombus are 2 in and 5 in. find the measure of the angles of the rhombus to the nearest degree. if it helps, we are learning how to use tangent right now!

    asked by Lily

  168. Math

    Show me how to solve 3(+4x -1)

    asked by bianca

  169. math

    If a scale on a map is 2.5 cm to 30 miles..if two cities are 8 cm apart on the map what is the actual distance between the 2 cities? I have 96 miles but not sure if that is right.

    asked by linda

  170. math

    If there are 7:5 boys and girls in a class and there are 21 girls how many boy are there in the class?

    asked by maddie

  172. math

    write each ratio in simplest form 3.5 to 0.5

    asked by linda

  173. algebra

    V=1/3*6300*7 solve for V The answer is V=14700 how do you change 1/3 to a decimal or use 1/3 to solve the equation?

    asked by jen

  174. math

    the value of 3^5+3^5+3^5 is 3^6

    asked by pavleen

  175. English

    • Eliminating wordiness: 1. Seeing the barrels, the driver immediately slammed on his brakes. 2. A really well-stocked bookshelf should have classical literature on it as well as important modern works of the current day. 3. China’s enormously huge

    asked by Anonymous

  176. biology

    what are the four main sources or causes of disease causing agents?

    asked by laidiah

  177. English

    I still have a few doubts about the use of the gerund and infinitive in English. I hope you can have a look at these sentences, too. 1)I cannot resist drinking a glass of water. 2) He missed being tested. He missed being struck by the ball. 3) She caused

    asked by Mike

  178. English

    1. Have the salmon always (swam, swum) in this river? 2.After the sun has (rose, risen) everyone felt better. 3.Grandfather (lay, laid) out a pair of clean pants for you. 4.Thank you, but I have already (ate, eaten) lunch. 5.After a short rest, we (rose,

    asked by Sam

  179. math

    a teaher chooses a student at random from a class of 10 boys and 15 girls. Find the odds favor of and for the odds against each event. 1. choosing a girl 2. choosing a boy i don't understand odds of something please help.........

    asked by megan

  180. Algebra 1

    I do not understand how to figure out probability. Lee has an urn with 8 white marbles and 10 black marbles. A marble is drawn at random and not replaced. Then a second marble is drawn randomly. What is the probability that the first is white and the

    asked by Bart

  181. English

    what does it mean to not pass judgement on someone?

    asked by Amy

  183. ELA

    I need an interesting eye-catching hook, which relates to the theme Privacy and Security.

    asked by Sumaiya

  184. Math

    What has the biggest volume a ton of feathers or a ton of cement?

    asked by Bobby

  185. Science. Please Help!

    If you add 4 grams of KCl to 10g of water at 28 C, would the solution be saturated, unsaturated or supersaturated?

    asked by Anonymous

  186. Health, Safety, and Nutrition (Penn Foster)

    Health, Safety, and Nutrition 1. Today in class you’re going to talk to your students about Vitamin C and what it does for a person’s body. From which one of the following food groups should you select your snack for today? A. Bread, cereal, rice, and

    asked by Lina

  187. all

    could anyone tell me where to find good information on India sports and their actions and how that compare to the U.S.?

    asked by hunter

  188. trig

    At 2 points 95 ft apart on a horizontal line perpendicular to the front of a building, the angles of elevation of the top of the building are 25 degrees and 16 degrees. How tall is the building?

    asked by Greg

  189. Chemistry

    Rearrage the following equation to make sence, Q=CWxMxT

    asked by Cassie

  190. physics

    Proper design of automobile braking systems must account for heat buildup under heaving braking. Calculate the thermal energy dissipated from brakes in a 1460-kg car that descends a 15.5° hill. The car begins braking when its speed is 92 km/h and slows

    asked by Johnathon

  191. math 8th please help

    a teaher chooses a student at random from a class of 10 boys and 15 girls. Find the odds favor of and for the odds against each event. 1. choosing a girl 2. choosing a boy i don't understand what the odds of something would be

    asked by megan

  192. Chemistry

    Ozone, O3, absorbs ultraviolet radiation and dissociates into O2 molecules and O atoms: O3 + hv --> O2 + O A 1.10 L sample of air at 22 degrees Celsius and 748mm Hg contains 0.25ppm of O3. How much energy, in joules, must be absorbed if all the O3

    asked by Jason

  194. math

    wai ling averaged 84 on her first three exams and 82 on her next 2 exams.what grade must she obtain on her sixth test in order to average 85 for all six exams? 94

    asked by pavleen

  195. Physics

    Two students are on a balcony 24.3m above the street. One student throws a ball, B1, vertically downward at 12.5 m/s. At the same instant, the other student throws a ball, B2, vertically upward at the same speed. The second ball just misses the balcony on

    asked by Aidan

  196. algebra

    3x + 4 > 9, with x = 2 determine whether or not the solution provided is a solution to the inequality. If the value he or she provides is a solution, provide a value that is not a solution. If the value is not a solution, provide a value that is a

    asked by Sam

  197. Physics

    A rocket moves upward starting from rest with an acceleration of 32.5 m/s^2 for 4.52s. It runs out of fuel at the end of the 4.52 s but does not stop. How high does it rise above the ground?

    asked by Aidan

  198. Physics

    A small first aid kit is dropped by a rock climber who is descending steadily at 1.5 m/s. A.)After 3.1s, how far is the kit below the climber?

    asked by Shannon

  199. math

    2x(3y) 6xy

    asked by pavleen

  200. Physics

    A small block of mass m=1.9kg slides, without friction, along the loop-the-loop track shown. The block starts from the point P a distance h=52.0m above the bottom of the loop of radius R=19.0m. What is the kinetic ennergy of the mass at the point A on the

    asked by Jean

  201. Physics

    A small block of mass m=1.9kg slides, without friction, along the loop-the-loop track shown. The block starts from the point P a distance h=52.0m above the bottom of the loop of radius R=19.0m. What is the kinetic ennergy of the mass at the point A on the

    asked by Jean

  202. FP/101

    Why is it important to go through these steps when you are planning on making a large purchase?

    asked by Pooh

  203. Grammar

    my son has to pick out "key words" in a story. what are "key words" and can I get an example? Please and thanks.

    asked by Steve

  205. math

    LEt f and g be continous functions with the following properties i. g(x) = A-f(x) where A is a constant ii. for the integral of 1 to 2 f(x)dx= the integral of 2 to 3 of g(x)dx iii. for the integral from 2 to 3 f(x)dx = -3A a find the integral from 1 to 3

    asked by jimbo

  206. math

    how much meters go in 38,000cm

    asked by samantha

  207. math

    8x+4/2

    asked by pavleen

  208. social studes

    i need help unscrambling puritans social studies letters like pitunsa crchhc and that equals to puritan church. PLEASE NEED HELP FAST this is due wen.feb.16 2011

    asked by juliz

  209. consumer economics

    Phonecia deposits $300 into a simple interest account that pays 3%. After 7 months what will be the total value of her account? A.$309.00 B. 305.25 C. $321.00 D. $9.00

    asked by megan

  210. Spanish

    33. Hace tres horas _____ el piano. Me duelen mucho los dedos. a. que toco b. yo toco c. qué toco d. me toca D? 34. Ayer fui a jugar tenis; ______. a. hoy me duele la nariz b. tengo frío c. me lastimé el brazo d. siempre me siento mal C? 35. Yo no tengo

    asked by mysterychicken

  211. math

    7x-x= 6x

    asked by pavleen

  212. English

    1.It was so cold that the water in the fountain had _____. (freeze) 2.Masato's bike has _____ on the sidewalk all day. (lie) 3.Shelia has never ____ a mountain bike. (ride) 4.Last sprin Urbi and Joe _____ every morning. (swam) 5.Has the rider been _____

    asked by Chris

  213. Algebra

    Show that (1-2*x*y+1)/(x^2*y-x) simplifies to -2/x

    asked by Al

  214. english

    Inthe short story ''the guest'' what does this quote mean ''...dirty white snow...''(Camus 9) Explain the quote interms of the figurative device. what is the theme? How does it connect to human nature? pls i really need your help. this work is due tomorow

    asked by ted

  216. Physics please help!!

    High speed stroboscopic photographs show that the head of a 188 g golf club is traveling at 52.5 m/s just before it strikes a 45.5g golf ball at rest on a tee. After the collision, the club head travels (in the same direction) at 44.0 m/s. Find the speed

    asked by Megan

  217. math

    (5+ 4x)-(3-3x)= 2+7x

    asked by pavleen

  218. Chemistry

    How much of a 500 ml bottle of 1.00 molar KCI solution should be diluted with deionized water to give 200.0 ml of a 0.100 molar solution

    asked by Jane

  219. Physics

    A range in a national park is driving at 47 km/h when a deer jumps onto the road 70m ahead of the vehicle . After a reaction of t seconds, the ranger applies the brakes to produce an acceleration of -2.00 m/s^2. What is the maximum reaction time allowed if

    asked by Shannon

  220. chem

    An experiment shows that a 114 mL gas sample has a mass of 0.167 g at a pressure of 721 mm Hg and a temperature of 32°C. What is the molar mass of the gas? so im suppose to find the molar mass but i thought that was the same as the g just converting it..?

    asked by hannah

  221. math

    If 3-x>10 x

    asked by pavleen

  222. Physics URGENT

    A speeder passes a parked car at 35.0 m/s. The police car starts from rest with a uniform acceleration of 2.41 m/s^2. A.) How much time passes before the speeder is overtaken by the police car? B.) How far does the speeder get before being overtaken by the

    asked by Shannon

  223. Physics URGENT

    A tennis ball with a velocity of +10.7m/s to the right is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with a velocity of -5.9 m/s (to the left). If the ball is in contact with the wall for 0.009s,

    asked by Shannon

  224. Physics

    A 360-kg satellite is in orbit around the Earth 10000 km above the Earth's surface. (a) What is the weight of the satellite when in orbit? [Answer is in N] (b) What was its weight when it was on the Earth's surface, before being launched? [Answer is in N]

    asked by MB

  225. algebra

    how do u do this 1 over 2x^-5 (rewrite to make it pozitive)

    asked by algebra...help

  227. geography

    Why does 10 degrees of latitude have a different distance at the equator than at the poles?

    asked by Anonymous

  228. geometry

    Why do you use 1/3 in volume formulas?

    asked by Mick

  229. chemistry

    find the pH of 10 mL of 1.00M solution after adding 10.00mL of indicator solution

    asked by Anonymous

  230. science

    wat are the 3 laws of motion...simple understandable definition plz thanks :)

    asked by hii

  231. math

    add 16 to k k + 16 = m use the rule and equation to make an input/output table?

    asked by shontel

  232. FSU

    *Explain the meetings that resulted in the Japanese seeing “Rolls-Royce, Rolls-Royce, Ford,” and how was this part of Americans “clamoring for the outlawry of war?”

    asked by Iris

  233. math

    23 students went to the school store, 17 bought pencils,12 bought paper, how many purchased both?

    asked by krista

  234. American History

    So we have to draw some sort of picture that show manifest Destiny but it has to be like from Mexican-American war time.. i have NO CLUE what to draw. Help me PLEASE?!?!?!?!

    asked by 8th Graderin URGENT Need!!!

  235. hcs/335

    I need to finish a paper and i cant think of any issues that could affect his decision. what are some ethical issues that could affect a medical assistant's decision to prescribing meds?

    asked by bobbi

  236. geometry

    what is the area of a trapazoid h=6,b1=5,b2=3

    asked by bj

  238. history

    *Explain the meetings that resulted in the Japanese seeing “Rolls-Royce, Rolls-Royce, Ford,” and how was this part of Americans “clamoring for the outlawry of war?”

    asked by Iris

  239. AP PHYSICS MECH.

    In Figure 9-62, block 2 (mass 1.3 kg) is at rest on a frictionless surface and touching the end of an unstretched spring of spring constant 160 N/m. The other end of the spring is fixed to a wall. Block 1 (mass 2.1 kg), traveling at speed v1 = 4.0 m/s,

    asked by vm

  240. Physics

    Two objects attract each other gravitationally with a force of 2.3×10−10 when they are 0.21 apart. Their total mass is 4.50 . Find their individual masses.

    asked by Kevin

  241. chem

    A balloon holds 29.3 kg of helium. What is the volume of the balloon if the final pressure is 1.2 atm and the temperature is 22°C? using the equation pv=nrt would i put 29.3 kg in place of n? but n has to be in moles so how do you convert that? thanks

    asked by hannah

  242. science

    can you give me a websight on electrons.

    asked by Stanly 6th grade

  243. CRIMINOLOGY

    what are the three most prominent elements of socialization?

    asked by Sam

  244. math

    deon runs 3 miles in 35 minutes. At the same rate, how many miles would he run in 84 minutes?

    asked by john

  245. Science

    For this assignment, think about the impact that two (2) of your meals have on our world from an ecological and economic perspective. You can pick breakfast, lunch or dinner, and then answer the following questions. in 1,000-words, using APA style

    asked by Jessica Jenkins

  246. physics

    A 3Kg projectile is fired straight upward from earth's surface with a speed that is one-fourth the escape speed. Neglecting air resistance. a) What is the Kinetic energy of this projectile when it is launched? b) what is the gravitational potential energy

    asked by rick

  247. chemistry

    the gas in the discharge cell of a laser contains(in mole percent) 11%co2, 5.3%N2 and 84%He. what is the molar mass of this mixture?

    asked by Anonymous

  249. .....

    what is the possessive noun in "the purses of the ladies"

    asked by chelsea

  250. Math

    A speaker was so boring that one-half of the audience left after a few minutes. Five minutes later, one-third of the remaining audience left. Ten minutes later, one-fourth of those remaining left, leaving only nine people in the audience. How many people

    asked by sam

  251. math

    Find the percent increase in the area of a circular pizza if the radius is increased from nine inches to ten inches.

    asked by john

  252. College algebra

    Write the equation of m=6/7 through (0,3) in standard form

    asked by Tommy

  253. College algebra

    Write equation m=9/8 through (6,4) in slope intercept form

    asked by Tommy

  254. math

    A peddler is taking eggs to the market to sell. The eggs are in a cart that holds up to 500 eggs. If the eggs are removed from the cart 2,3,4,5, or 6 at a time, one egg is always left over. If the eggs are removed 7 at time, no eggs are left over. How many

    asked by tom

  255. College algebra

    Write the equation parallel to y=-2 (3,6) Equation perpendicular to y=-5 (4,7)

    asked by Tommy

  256. math

    The year 1991 was the last year of the twentieth century whose number is a palindrome, that is, reads the same backward and forward. How many years between the years 2000 and 3000 will be palindromic?

    asked by jay

  257. Algebra

    I would like to know if I did these problem right? y + 2x =3 Y +2x=-4 Y+2*x-3=0 y=2*x+4=0 If not can you show me the steps

    asked by Donna

  258. Math

    4x2squared +9 \3-(8+3)

    asked by Derek

  260. Physics

    What is the emf of a battery with a 0.15 Ω internal resistance if the battery delivers 1.5 A to an externally connected 5.0 Ω resistor?

    asked by Adam

  261. Language Arts

    Hello! I have to write a summary of a book that I've read, and I've been writing it, and I'm worried I'm putting in too much detail/making it too specific/too long? I wasn't sure if I'm supposed to summarize the whole plot in a couple of paragraphs, or if

    asked by Michelle

  262. math

    If Juan can consume in one sitting one medium (12-inch diameter), deep-dish (1-inch thick) pizza, what is the minimum volume of his stomach?

    asked by jay

  263. social studies

    what was a puritan business charter? why was it important? and why did king chrles stopped giving out the charter? Can you explain the importance of this charter? please. -thank you:)

    asked by samantha

  264. history

    "Rather than a radical departure from capitalism, the New Deal was a conservative defense of capitalism." Assess the validity of this statement.

    asked by Lilly

  265. phusics

    A ball is thrown vertically upward from top of a building with speed of 20m/s. On the way back ball misses the building and lands on the ground. Total time the ball is in air is 6 seconds. Determine the height of the building.

    asked by mark matat

  266. Physics-Resonance

    A 3.00 m long pipe is in a room where the temperature is 20 C. What is the fundamental frequency if the pipe is closed at one end? Would this count as an open pipe still, or a closed pipe? This is what I did. Wavelength = 2L/n Wavelength = 2(3)/1

    asked by Dan

  267. science

    what keeps the moon traveling in the same path eah time it orbits earth

    asked by liz

  268. matemáticas

    El perímetro de la base rectangular de un piano es de 16 pies. ¿Cuáles son todas las dimensiones posibles del piano, usando sólo números enteros de los pies?

    asked by Cole Tomlinson

  269. Amazon

    Is amazon exclusive like a thing you have to pay for to watch or see. usually exclusive things are only for membership.

    asked by Anonymous

  271. geometry

    Find the area of a rectangle that has one side measuring 10 cm. and a diagonal measuring 26 cm.

    asked by marissa

  272. Amazon

    How does Amazon produce consumer faith in amazon site and its products?

    asked by Anonymous

  273. Math

    If a bug crawls 2cm up and 1cm down each day how long does it take for the bug to reach the top of a 12cm jar

    asked by Janet A

  274. algebra 2

    I am so stuck on this factoring thing. how do you solve: 1)15a(squared)b-10ab(squared) 2)x(squared)-8x-8 3) 6p(squared)-17p-45 4)2r(cubed)+250 5)x(to the 6th power)-64 6)x(squared)-xy+2x-2y 7)x(to 4th power)-1

    asked by Cass

  275. College algebra

    Graph f(x)=2(x+1)^2+4 Graph f(x)={2 if x>1 -5-x if x

    asked by Tommy

  276. Amazon

    What is an astore? aStore is an Amazon joining product which website owners can use to create an online store on their site

    asked by Anonymous

  277. Amazon

    y would businesses want to use aStore on Amazon? Is it because it is free worldwide to use?

    asked by Anonymous

  278. math

    simplify 24 divided by 1/2 +5/8*6/7

    asked by shantrese

  279. math

    simplify -4[-7-(-2+8)]

    asked by shantrese

  280. math

    solve -7(11-4w)-15 = -27-(50-13w)

    asked by shantrese

  282. calc

    The sun is shining and a spherical snowball of volume 210 ft3 is melting at a rate of 14 cubic feet per hour. As it melts, it remains spherical. At what rate is the radius changing after 3 hours?

    asked by Bubba

  283. math

    solve for d k=2c-9d/8

    asked by shantrese

  284. math

    solve using set builder notation -8-11(3x+7)less than or equal to -40x-9

    asked by shantrese

  285. English

    1.I have often (dream) of becoming a great writer. 2.I (drink) two glasses of orange juice at breakfast today. 3.Their new boat (sink) in six feet water. 4.Generation have (take) wood and food from the rain forests. 5.The canal has (freeze), and the ferry

    asked by Jack

  286. Physics

    A car travels in a straight line for 5.4 h at a constant speed of 79 km/h . What is its acceleration? Answer in units of m/s2.

    asked by Diana

  287. Physics

    A glacier moves with a speed of 42 nm/s. How many years would it take for the glacier to move 0.78 km? Answer in units of yr.

    asked by Maria

  288. exponents

    how do i find the value of exponents

    asked by jessica

  289. Chemistry

    What is the purpose of baking a chemical pie?

    asked by Jae

  290. Science

    How might pollen be carried from the anther to the female part of the flower?

    asked by Julie

  291. Algebra 1

    Solve the following system of equations: x^2+y^2=24 x-y=2

    asked by Laura

  293. marketing

    Briefly describe your selected problem when buuying a car?

    asked by jeniffer

  294. Geometry

    A right triangle has an angle that measures 55 degress. The leg adjacent to this angle has a length of 43 cm. What is the length of the triangle? Round to the nearest tenth

    asked by Marco

  295. Geometry

    The hypotenuse if a right triangle measures 9 inches and one of the acute angles measures 36 degress. What is the area if the triangle? Round to the nearest square inch.

    asked by Marco

  296. math

    Prove that if p is a prime number and p is not equal to 3, then 3 divides p^2 + 2. (Hint: When p is divided by 3, the remainder is either 0,1, or 2. That is, for some integer k, p = 3k or p = 3k + 1 or p = 3k + 2.) I thought you might do three cases with

    asked by Meg

  297. math

    made a mistake in the problem: -7(11-4w)-15w = -27 -(50-13w)

    asked by shantrese

  298. Science

    The volume of a solution was measured in a graduated cylinder (shown above). If the mass of solution is measured to be 60.75 grams, what is the density of the solution?

    asked by Niicly

  299. Amazon

    y would businesses want to use aStore on Amazon?

    asked by Anonymous

  300. Algbra

    I need help with the following question. Solve for y: 3x - 2y = 8 + x Please show the steps and the answer, thanks.

    asked by Zach

  301. math

    what is a short and easy way to find the least common multiples

    asked by Romaris

  302. math

    write slope intercept equation for the line that pass through (2,-7) and (4,-13)

    asked by shantrese

  304. math

    write the slope intercept equation for the line that pass through (-12,10) and is perpendicular to 4x+6y =3

    asked by shantrese

  305. Calc

    The sun is shining and a spherical snowball of volume 210 ft3 is melting at a rate of 14 cubic feet per hour. As it melts, it remains spherical. At what rate is the radius changing after 3 hours? I posted this question before and when i went back and did

    asked by Bubba

  306. Spelling/Grammar

    _____ of the nature center is one of the year's goals. What is the answer... from the word box? _______________________________________ WORD BOX _______________________________________ 1. Persuasion 2. Discrimination 3. Expansion 4. Opposition 5.

    asked by Jessica

  307. math

    the number of dogs taken in daily at a local animal shelter increased from 4 in october 2009 to 10 in january 2010. predict the number of dogs taken in daily in may 2010.

    asked by shantrese

  308. Physics

    A glacier moves with a speed of 42 nm/s. How many years would it take for the glacier to move 0.78 km? Answer in units of yr.

    asked by Maria

  309. Physics

    A glacier moves with a speed of 42 nm/s. How many years would it take for the glacier to move 0.78 km? Answer in units of yr.

    asked by Maria

  310. math

    If n(B) = 15, n(A B) = 25, and n(A B) = 3, find n(A).

    asked by Nicole E

  311. math

    during one year the Wagners real estate bill included $600 for local schools. Of this amount, $150 went to the high school district. what percent did the Wagner family pay to the high school district?

    asked by shantrese

  312. Calc

    A lighthouse is fixed 130 feet from a straight shoreline. A spotlight revolves at a rate of 11 revolutions per minute, (22 rad/min ), shining a spot along the shoreline as it spins. At what rate is the spot moving when it is along the shoreline 12 feet

    asked by Bubba

  313. Math

    Write a function rule to describe each situation The sellings price s(c) after a 45% markup of an item as a functiom of the stores cost c.

    asked by Please help

  315. math

    What multiplication fact could you use to find a number that can be divided evenly by 8 and by 9?

    asked by Anonymous

  316. Trigonometric Ratios

    Right traingle ABC is graphed pm the coordinate plane and has vertices at A(-1,3), B(0,5), and C(4,3). What is the measure of angle C to the nearest degree? F:27 G:29 H:32 J:43

    asked by Marco

  317. math

    Computers manufactured by a certain company have a serial number consisting of a letter of the alphabet followed by a six-digit number. If all the serial numbers of this type have been used, how many sets have already been manufactured?

    asked by Mike

  318. math

    average of 65,49,24,15

    asked by Anonymous

  319. Chemistry

    I am doing a Catalase lab (Enzymes) I don't understand this question: What are the controls in the experiment?

    asked by Joey

  320. Math

    a 6 ft adult has a shadow 3.6 ft long. How long is the shadow of a 5 ft child standing next to the adult?

    asked by Michael

  321. math

    A student planning her curriculum for the upcoming year must select one of four business courses, one of four mathematics courses, two of ten elective courses, and either one of four history courses or one of four social science courses. How many different

    asked by Kim

  322. Math

    Write a function rule to describe each situation The sellings price s(c) after a 45% markup of an item as a functiom of the stores cost c.

    asked by Please help

  323. Pre Calc

    Solve the non-linear inequality: x^3-5x^2-14x

    asked by Giselle

  324. Pre Calc

    Solve the non-linear inequality: x^3-5x^2-14x

    asked by Giselle

  326. Math

    Solve by the elimination method 7x-y=17 x+7y=31 What is the solution of the system?

    asked by Jessica

  327. algebra

    9x - 7 = 6x + 3 x = ___ Only type in the numeric answer in the box below and round your answer to the nearest tenth!

    asked by Anonymous

  328. English

    1.We (see) tropical fish in the warm waters surrounding the island. 2.Have you (speak) to your parents about the field trip? 3.Teresa has (choose) the smallest piece of chicken. 4.Yesterday someone on the radio (sing) a song about Brazil. Just seeing if I

    asked by Jack

  329. math

    given the linear equation y = -2/3x -2. find y coordinates of the points (-9) (-3) and (6)

    asked by shantrese

  330. math

    find the x and y intercepts -5x+9y = -45

    asked by shantrese

  331. Math

    Find the quotient of l 4/5 divided by l/3

    asked by Kendra

  332. math

    find the y intercept of the line in the given equation y = 3/4x-2

    asked by shantrese

  333. Geometry

    How do you solve 3= 9 =6y x 2x+5 20

    asked by Meg

  334. math

    write the slope intercept equation for the line with slope 1/2 and y intercept (0,-5)

    asked by shantrese

  335. math

    A 75ft diagnol brace on a bridge connects a support of the center of the bridge The horizontal distance that it spans is 15ft longer than the hieght that reaches on the side of the bridge.Find the horizontal and vertical distance spanned by this brace

    asked by timothy

  337. Math

    Mrs.Chou placed 45 cookies on a plate, and 36 of the cookies were chocolate chip. What percent of the cookies on the plate were NOT chocolate chip?

    asked by MathDude

  338. english hs

    what else can you say beside "thank you" to an interviewee??

    asked by niel

  339. chemistry

    A metal whose threshold frequency is 9.02×1014

    asked by soso

  340. Math

    It's a trapeziod where the height is 13.8 in. and there is two lengths 8in. And 18 in. what is the area?

    asked by Justin

  341. business math

    The parents of a child have just come into a lare inheritance and wish to establish a trust fund for the child's college education. If they estimate that they will need $100000 in 13 years, how much should they set aside in the trust now if they can invest

    asked by msh

  342. English

    Using the correct form of (eat, ate, sit, set) 1.Someone (eat) all the leftover sandwiches. 2.Thank you, but I have already (ate, eaten) lunch. 3.After splitting the logs, the farmer (sat, set) his ax on the ground. 1.ate 2.eaten 3.set

    asked by Jack

  343. area

    what is the total area of the four walls of a rectangular room 4 meters long by 5.5 meters wide by 3 meters high? is it 4 times 5.5? then times four since there are 4 walls? 88m squared?

    asked by Skye

  344. Spanish

    33. Hace tres horas _____ el piano. Me duelen mucho los dedos. a. que toco b. yo toco c. qué toco d. me toca D? 34. Ayer fui a jugar tenis; ______. a. hoy me duele la nariz b. tengo frío c. me lastimé el brazo d. siempre me siento mal C? 35. Yo no tengo

    asked by mysterychicken

  345. chemistry

    A 5 mL dose of Milk of Magnesia contains 400 mg of magnesium hydroxide. What mass in grams of HCl can it neutralize? Balanced equation= Mg(OH)sub2 + 2HCl---> MgClsub2(aq) + 2Hsub2O

    asked by Janette

  346. Physics...

    A burn produced by live steam at 100oC is more severethan one produced by the same amount of water at 100oC.Verify this, calculate the heat that must be removed from 5.0 g ofwater at 100oC to lower its temperature to34oC.. Then calculate the heat that must

    asked by Femfatal

  348. Science fir 11 yr olds

    Experiment in rust: does anhydrous calcium chloride in solid form prevent rust on matal nails is submerged for 5 days? Is it available in liquid form? If yes, does that prevent a nail from rusting after 5 days? Many thanks

    asked by Fazlyn

  349. Algebra 1

    I do not understand how to figure out probability. Lee has an urn with 8 white marbles and 10 black marbles. A marble is drawn at random and not replaced. Then a second marble is drawn randomly. What is the probability that the first is white and the

    asked by Bart

  350. math

    Brian recorded the amount of money he spent over the last 5 days. He knows that the average amount of money he spent was $25.72. On four of the Five days, Brian spent $15.50, $28.41, $31.02, and $10.66. Determine how much Brian spent on the fifth day.

    asked by taylor

  351. Physics

    The builders of the pyramids used a long ramp to lift 21000-kg (21-ton) blocks. If a block rose 0.86 m in height while traveling 20 m along the ramp’s surface, how much uphill force was needed to push it up the ramp at constant velocity?

    asked by Olga

  352. Math plz help

    The shoe sizes and the sizes for men Positve, Negative, or no correlation?

    asked by Please Help

  353. Semicolon

    Marielle, the coordinator, was eager to begin the speeches, awards presentation, and banquet, but the guest speaker, who was flying to Chicago, had not arrived. Do I need a semicolon in this sentence?

    asked by Aj

  354. physics

    You push a 1.9 kg block against a horizontal spring, compressing the spring by 13 cm. Then you release the block, and the spring sends it sliding across a tabletop. It stops 60 cm from where you released it. The spring constant is 200 N/m. What is the

    asked by Jacob

  355. Physics

    A particle is traveling in a straight line at a constant speed of 25.4 m/s. Suddenly, a constant force of 12.8 N acts on it, bringing it to a stop in a distance of 58.6 m. How long does it take to stop and what is the mass of the particle? *Don't I need

    asked by Bryce

  356. math

    penny has 25 dimes. she likes to arrange them into three piles, putting an odd number of dimes into each pile. in how many ways could she do this?

    asked by ana

  357. trig

    A man standing 9 meters above the ground observes the angles of elevation and depression of the top and bottom,of the top of the monument in luneta 6 degrees and 50 minutes and 7 degrees and 30 minutes respectively.Find the height of the monument?

    asked by wenjelin
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