Questions Asked on
October 28, 2011

  1. science

    how many kilojoules of heat must be transferred to a 480 g aluminum pizza pan to raise its temperature from 22 degree c to 234 degree c? The specific heat of aluminum in this temperature range is 0.97 J/g degree C.

    asked by Justin
  2. Calculus

    Suppose that p(x) is the density function for heights of American men, in inches, and suppose that p(69)=0.22. Think carefully about what the meaning of this mathematical statement is. (a) Approximately what percent of American men are between 68.7 and

    asked by Cesar
  3. algebra

    A rectangular piece of cardboard measures 17cm by 14cm. Strips of equal width are cut off one side and one end. The area of the remaining piece is 108cm^2. Find the width of the strips removed.

    asked by Samuel
  4. science

    as 390 g of hot milk cools in a mug, it transfers 30,000 J of heat to the environment. What is the temperature change of milk? The specific heat of milk is 3.9 J/g degree C.

    asked by Justin
  5. Geometry

    Find the value of X: Given: segment RS is congruent to segement ST, measure angle RST = 7x-54, measure angle STU = 8x

    asked by Kirby
  6. physics

    A stationary bicycle is raised off the ground, and its front wheel (m = 1.3 kg) is rotating at an angular velocity of 14.0 rad/s (see the drawing). The front brake is then applied for 3.0 s, and the wheel slows down to 2.7 rad/s. Assume that all the mass

    asked by Anonymous
  7. chemistry

    for the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluable salt. KCl, BaCl2, AgNO3, Pb(NO3)2, K2SO4, HNO3

    asked by carly
  8. PHYSICS

    A bicycle with 0.80 -diameter tires is coasting on a level road at 5.6 . A small blue dot has been painted on the tread of the rear tire. a)What is the angular speed of the tires? b)What is the speed of the blue dot when it is 0.80 above the road? c)What

    asked by FizzaAli ASAP
  9. Chemistry

    Predict the formal bond angles about the central atom for the following molecules: TeBr4 Express your answers using three significant figures separated by a comma. What are the bond angles for an octahedral structure and how many?

    asked by Caitlin
  10. chemistry

    One of the by-products of a reaction is 2-methyl-2-butene. A) Suggest a mechanistic pathway for the formation of this alkene. B) How is this by-product removed during the purification?

    asked by Aly
  11. trig

    guy wire is attached to a pole for support. If the angle of elevation to the pole is 67° and the wire is attached to the ground at a point 137 feet from the base of the pole, what is the height of the pole (round to 2 decimal places)?

    asked by shye
  12. science

    a 425 g cylinder of brass is heated to 90/0 degree C and placed in a calorimeter containing 334 g of water at 25.0 degree C. The water is tirred and its highest temperature is recorded as 32.0 degree C. From the thermal energy gained by the water,

    asked by Justin
  13. Calculus

    The manager of a large apartment complex knows from experience that 80 units will be occupied if the rent is 460 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 10 dollar increase in rent.

    asked by Anonymous
  14. math

    Jan says if you double each of the dimensions of a rectangular box, it will take twice as much wrapping paper to wrap it. How do you respond?

    asked by unknown
  15. Chemistry

    5.85 g of sodium chloride(NaCl) is dissolved in 250 mL OF solution. Calculate mass percentage of the solute.

    asked by Dewa
  16. English Composition

    penn foster exam number 05054100 need all the answers.

    asked by moo
  17. physics

    a 160g hockey puck slides horizontally along the ice, and the coefficient of kinetic friction between puck and ice is 0.15. if the puck starts sliding at 3 m/s before it comes to a stop it travels 3.6m how do you get to this answer?

    asked by annie
  18. calculus

    tan−1(4x2y) = x + 5xy2

    asked by DeVonne
  19. math

    Jason earns 30 cents for every carrot he sells. He earns an extra $3 for every 30 carrots he sells.How many carrots must he sell in order to earn $555?

    asked by Anonymous
  20. Math

    Mr.Santiago brought 10 crates of oranges. There were 50 oranges in each crates. He sold 65% of them. 8% of the remainder went bad, and he threw them away. A) How much money did Mr.Santiago earn if he sold the oranges 5 for $1.20 B) If he made $24.15 by

    asked by Carrie
  21. Calculus

    A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of the rectangle. What is the area of the largest possible Norman window with a perimeter of 47 feet?

    asked by Anonymous
  22. physical science

    assume that a parcel of air is forced to rise up and over a 6000 foot high mountain. The intial temperature of the parcel at sea level is 76.5 F, and the lifting condensation level (lvl) of the parcel is 3000 feet. The DAR is 5.5 F/1000 and the SAR is 3.3

    asked by nissa
  23. math

    An arcade uses 3 different colored tokens for their game machines. For $20 you can purchase any of the following mixtures of tokens: 14 gold, 20 silver, and 24 bronze; OR, 20 gold, 15 silver, and 19 bronze; OR, 30 gold, 5 silver, and 13 bronze. What is the

    asked by laurie
  24. implicit differentiation HELP

    x^3 + y^3 = 6xy At which point is the first quotient of the tangent is horizontal?

    asked by Yousef
  25. computer networking

    You have been asked to help upgrade the LAN at a very successful CPA firm with five departments in one building and a total of 560 employees. Although the firm's employees understand accounting, they haven't spent much time improving their network.

    asked by me
  26. Chemistry

    Calculate the mass of solid neded to make 500ml of solution that is 0.25m in sulfate ion, using sodium sulfate decahydrate.

    asked by Emily
  27. math/ algebra?

    a lab technician draws a sample of blood. A cubic millitmeter of the blood contains 22^3 white blood cells and 22^5 red blood cells. What is the ratio of white blood cells to red blood cells?

    asked by Maggie
  28. Statistics

    The closing price of Schnur Sporting Goods, Inc., common stock is uniformly distributed between $21 and 36 per share.Exercises What is the probability that the stock price will be: (a) More than $28

    asked by Anonymous
  29. biology

    why is glucose converted into hexose bisphosphate in glycolysis ??

    asked by Anonymous
  30. chemistry

    a 100 cm cube gas cylinder filled with chlorine under 160 torr pressure is connected by stop clock with another cylinder of 400 cm cube filled with nitrogen under pressure of200 torr. what will be total pressure when stop clock is opened?

    asked by afshan
  31. chemistry

    a 100 cm cube gas cylinder filled with chlorine under 160 torr pressure is connected by stop clock with another cylinder of 400 cm cube filled with nitrogen under pressure of200 torr. what will be total pressure when stop clock is opened?

    asked by afshan
  32. physics

    A woman stands on a scale in a moving elevator. Her mass is 57.0 kg, and the combined mass of the elevator and scale is an additional 811 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force

    asked by Nick
  33. math

    A draw contains 3 black socks and 2 white socks. A sock isdrawn at random and then replaced. Find each probability. p(2 black) p(black, then white) p(white, then black) p(2white)

    asked by sherry
  34. Chemistry

    Describe what a chemical bond is in terms of electron density between two atoms. What are the bond angles for an octahedral structure and how many? Predict the formal bond angles about the central atom for the following molecules: TeBr4 Express your

    asked by Caitlin
  35. Geometry

    Two parallel chords of lenght 24cm and 10cm which lie on opposite side of a circle are 17cm apart. Calculate the radius of the circle to the nearest whole number.

    asked by Omol
  36. math

    The sum of the firest 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P

    asked by Ahmad
  37. Calculus

    A fence 4 feet tall runs parallel to a tall building at a distance of 6 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

    asked by Anonymous
  38. geometry

    Triangle ABC with an area of 243 cm2 is similar to WXY. If BD = 18 cm and XZ = 4 cm, what is the length of segment WY?

    asked by saikara
  39. biology 1

    what kind of elecrtical charge is found on the oxygen atom of a polar water molecule

    asked by mario
  40. Commerce

    Antique Arts Company would pay Rs. 2.50 as dividend per share for the next year and is expected to grow indefinitely at 12%. What would be the equity value if the investor require 20% return?

    asked by Phani
  41. data management

    1) solve: a) (2n+1C2) = (nC2)sqaured b) 12(nC2) = n!

    asked by jane
  42. Calculus

    A cylinder is inscribed in a right circular cone of height 5.5 and radius (at the base) equal to 7. What are the dimensions of such a cylinder which has maximum volume?

    asked by Anonymous
  43. calculus

    Find all values of a such that y=a/(x−8) and y=x^2−16x+64 intersect at right angles? please how the steps :)

    asked by mehak
  44. chemistry

    Ethanol and carbon dioxide have approximately the same molecular weight, yet carbon dioxide is a gas at STP and ethanol is a liquid. How do you account for this difference in physical property?

    asked by Anonymous
  45. geometry

    a phone company charges a flat monthly fee of $15 for cell phone services, plus an additional fee for every minute you talk. in a given month, you are charged $36 for the 24 minutes you talked( not including the $15 flat fee.) let the total cost be c(in $)

    asked by abigail
  46. Science

    Calculate the pressure exerted on your finger if you hold up a 15-pound box of apples.

    asked by Steve
  47. science

    A scientist wants to make a solution of tribasic sodium phosphate, , for a laboratory experiment. How many grams of will be needed to produce 350 of a solution that has a concentration of ions of 0.500 ?

    asked by Anonymous
  48. English

    This is a final essay. Can someone please read over it and let me know where they think I need improvement. Even though People feel as if their past debt management mistakes should not count against them, credit scores are a fair measure to help lenders

    asked by Anonymous
  49. math

    ray makes an array that has 4 rows of 4 counters. he wants to make two more arrays using the same number of counters. he wants more than one counter in each row. what two arrays can he make?

    asked by hadyn
  50. PHYS

    The fundamental resonance on a string is 60 cm length fixed at both ends is 440Hz. What is the speed of a wave traveling on this string?

    asked by Fox
  51. Immigration Essay Help?

    Can anyone give me a start to my essay? I'm really having trouble starting off the topic sentence. It's about immigration, coming to America. Thank you so much. -Allyson

    asked by Allyson
  52. Greetings

    I have a Agility ladder and I do what called fast feet all the way down explain this drill. Physical Education

    asked by Michael
  53. Chemistry

    You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M NaOH. Determine the molar mass of the acid.

    asked by Andres
  54. Calculus

    Use implicit differentiation to find the slope of the tangent line to the curve 2(x^2) + 2xy + 2(y^3)= -18

    asked by DJ
  55. math

    The sum of the firest 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P

    asked by Ahmad
  56. Physics

    An arrow is shot at 29.0° above the horizontal. Its initial speed is 54 m/s and it hits the target. (a) What is the maximum height the arrow will attain? (b) The target is at the height from which the arrow was shot. How far away is it?

    asked by Alex
  57. Calculus

    (y/(x+9y))= (x^2)-7 at the point (1, -6/55) Use implicit differentiation to find the slope of the tangent line to the curve

    asked by DJ
  58. Physics

    An arrow is shot at 29.0° above the horizontal. Its initial speed is 54 m/s and it hits the target. (a) What is the maximum height the arrow will attain? (b) The target is at the height from which the arrow was shot. How far away is it?

    asked by Alex
  59. Statistics

    Could someone help out with this question. The answer is 1842, but i'd like to know how to solve it. Thanks BCC wants to estimate the proportion of its students who are single parents. How many students should BCC survey if it wants to be 99% confident

    asked by Jay Ortwein
  60. calculus

    Find all values of 'a' such that y=a/(x−9) and y=x^2−18x+81 intersect at right angles. show steps please :)

    asked by anna
  61. science

    What are some synonyms for the word remediation? I looked in the dictionary but do not see any comparsion to the words correction, deficiency or maintenance, assessment. Could any of these words be a A synonym for remediation?

    asked by Tameika
  62. math

    a figure skater must trace a figure eight on the ice that consists of two perfect circles, each with radius 11 feet. How far does the skater go one time around the figure eight?

    asked by unknown
  63. Biology

    1) What is the minimum number of single nucleotide substitutions that would be necessary for each of the following amino acid replacements? a. trp -> lys b. met -> his c. tyr -> gly d. ala -> asp   2) A mutation is isolated that can not be induced to

    asked by Jim
  64. Geography

    If the time of town A along 75W is 5:00pm on friday what the time and day be at town B (along 120E)

    asked by Saidu
  65. Calculus

    A fence 2 feet tall runs parallel to a tall building at a distance of 6 feet from the building. What is the length of the shortest ladder that will reach from the ground over the fence to the wall of the building?

    asked by Anonymous
  66. Math

    A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (editing) and variable costs (printing). One time fixed cost will total $76,322. The variable costs will be $10 per book. The publisher

    asked by Billy
  67. calculus

    5) Find the points on the curve below at which the tangent is horizontal. Use n as an arbitrary integer. (Select all that apply.) y=Sin(x) / 2+ Cos (x)

    asked by Robyn
  68. Math

    Maria has $5.05 in quarters and dimes. The number of quarters exceeds twice the number of dimes by 1. Find the number she has of each kind.

    asked by Emily
  69. physics

    a 50 kg person has a weight of 80 N on the surface of the moon what is the acceleration due to gravity

    asked by Lea
  70. biology194

    compare the regulatory roles of LH and FSH?

    asked by Mark J
  71. 8th grade Math

    Bob is reading a 300-page book. After one hour, he had finished 8% of the book. Assuming that he reads at a constant rate, how many more hours will it take him to read the rest of the book?

    asked by Anonymous
  72. physics

    A 31.0 kg object slides down a slope which is inclined at an angle of 20.0o to the horizontal. What is the normal force exerted by the slope?

    asked by Nick
  73. chemistry(reacting masses)

    it is given that there are 2moles of nitrate ions and 1.2moles of iron(II)ions in a mixture of iron(II)nitrate and iron(II)carbonate.Calculate the number of moles of carbonate ions.

    asked by Kon
  74. Opinion

    Generally speaking, what can we learn from a society's villains faced by its heroes that we can't learn from its heroes? Is it easier for you (personally) to understand what a villain represents than a hero? On a similar note, do you think it's easier to

    asked by Anon
  75. chemistry

    Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 2.00 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)?

    asked by Sara
  76. Math

    Can someone help me with this problem? Find the equation of the tangent line to the curve: f(x)=x^2, a. Parallel to the line y = 8x + 2 b. Perpendicular to the line y = 8x + 2

    asked by Branden
  77. Physics

    An astronaut in outer space pushes himself away from his spaceship. About how far does the astronaut go before stopping? What does the astronaut have to do to stop himself?

    asked by Lala
  78. Physics

    A car is moving at 20 m/s. The driver applies the brakes and the car decelerates at 1 m/s2. How long will it take the car to stop and how far will it travel until it stops

    asked by Terry
  79. Chemistry

    You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M NaOH. Determine the molar mass of the acid.

    asked by Andres
  80. physics

    If two different masses have the same kinetic energy, their momenta are: 1. inversely proportional to their masses 2. inversely proportional to the square roots of their masses 3. proportional to the squares of their masses 4. proportional to their masses

    asked by Anonymous
  81. geometry

    The perimeter of a rectangle is 42m , and the area of the rectangle is 54m^2 . Find the dimensions of the rectangle.

    asked by Anonymous
  82. Chemistry

    You dissolve 0.213 g of acid in 25.0 mL of water. To react the acidic solution to the endpoint you add 23.80 mL of 0.1024 M NaOH. Determine the molar mass of the acid.

    asked by Andres
  83. Algebra

    Find the value of C such that the graph of 3x+c=5y has an x-intercept of (-4,0)

    asked by Sharday
  84. Calculus

    f(x)= 6ln(2x+7ln(x)) I need to find the first derivative.

    asked by DJ
  85. social work

    My Question is “ What is a mediation model” Locate and read an article in the University Library related to a mediation model. Write a 350-word summary of your article. Be sure to address the following your summary: • Identify the setting and

    asked by Mary
  86. EED 364

    1) Observe an elementary mathematics lesson. Write an essay of 1,500-1,750 words that addresses the following issues and summarizes your observations: a) What is the importance of having standards in mathematics? How do standards improve mathematics

    asked by Kimberly
  87. biology

    list two types of active transport that use specific protein recognition

    asked by joe
  88. math

    The sum of the first 9 terms of an A.P is 72 and the sum of the next 9 terms is 71, find the A.P

    asked by Anonymous
  89. maths

    A swimming pool has two identical sides in the shape of a trapezium. All other sides are rectangular. The length of the pool is 12m. The width of the pool is 4m. The depth of the pool is 2.1m at the deep end and 1.1m at the shallow end. Rafa fills the pool

    asked by lissa
  90. physics

    A rocket of mass 4.45E+5 kg is in flight. Its thrust is directed at an angle of 51.1° above the horizontal and has a magnitude of 7.64E+6 N. Calculate the magnitude (enter first) and direction of the rocket's acceleration. Give the direction as an angle

    asked by Nick
  91. Chemistry

    Quantum numbers: What are the n values that are allowed? I put 1,2,3,4, etc. For the first four of these, indicate the l values allowed. n=1 l = 0 n=2 l = 0,1 n=3 l = 0,1,2 n=4 l = 0,1,2,3 Are these correct?

    asked by Hannah
  92. science

    Considering human beings as part of the natural web of life, rather than managers of it. What is this called?

    asked by Tameika
  93. First Nations

    Just wanna know, when did the first nations finally get the vote in Canada?

    asked by -Mysterious-
  94. physics

    A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 14.0 N force directed 25.0° below the horizontal. (a) Determine the work done by the applied force. 1 J (b) Determine the work done by the normal force exerted by

    asked by katlyn
  95. Chemistry

    How do you find the number of bond angles for an octahedral structure? I believe it's more than one answer

    asked by Caitlin
  96. english

    can somebody tell where the poetic devices are located in the song cant take that away by mariah carey? such as metaphor, mood paradox etc. Mmmmh Whoaaa They can say, Anything they want to say, Try to bring me down, But I will not allow anyone to succeed

    asked by jane
  97. english

    is " but I will not allow anyone to succeed hanging clouds over me" a metaphor or paradox or is it something else? is "there's a light in me, that shines brightly" a metaphor? " Iwill rise steadily sailing out of their reach" a paradox? if im not right can

    asked by jane
  98. central science

    what is the velocity of a plane that is 475m above the ground, if it drops a dead cat and the cat hits the ground 850m horrizontally from where it is droped

    asked by shaya
  99. chem

    Complete the table below: Note: Make simplifying assumptions, do not use the quadratic formula. What is the pH of the solution created by combining 11.80 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)?

    asked by Sara
  100. computers

    Which of the following devices allows a computer to communicate with other computers via the phone lines?

    asked by Evelyn
  101. social work

    Assignment reads Locate and read an article in the University Library related to a mediation model. Write a 350-word summary of your article. Be sure to address the following your summary: • Identify the setting and populations most appropriate for the

    asked by Mary
  102. America history

    In virgina,colonists who could pay their way across the atlantic were granted 50 acres of land to lease for a modest rental fee.the term fro such an arrangement was called?

    asked by Crystal
  103. HELP

    subtract simplify by removing factor of 1 if possible 3bc/b^2-c^2-b-c/b+C

    asked by Katie
  104. MATH

    A town decides to build a playground using one of the existing walls beside an elementary school. What is the maximum area they can enclose using only 100ft of donated fence?

    asked by Anna
  105. physics

    A 20kg block is being pulled by a 150N force,the block is initially at rest,if the coefficient of frictionbetween the block and the surface is 0.3,find (a)the normal force,(b)the friction force acting on the block,(c)find the acceleration of the block

    asked by amaka
  106. Algebra 2

    When x² - 3x + 2k is divided by x + 2, the remainder is 7. Find the value of k. Use synthetic division to do so.

    asked by Peter
  107. calculus

    The average value of y = v(x) equals 3 for 1 x 3, and equals 14 for 3 x 12. What is the average value of v(x) for 1 x 12

    asked by poetwizz06
  108. derivatives

    How do you find the derivative of (6 csc x)/x?

    asked by hannah
  109. trignometry

    how to find derivative of (2+cotx)/(7-tanx)

    asked by Xie
  110. Algebra

    pam scored 78 on a test that had 4 fill-in questions worth 7 points each and 24 muliple choice questions worth 3 points each. She had one fill-in question wrong. How many multiple-choice questions did pam get right?

    asked by Sharday
  111. Math

    The market trades in three fixed-income securities: A, B, and C. Security A is a 2-year bond paying 40 at date 1 and 80 at date 2. Security B is a 1-year bond paying 50 at date 1. Security C pays 30 at date 1 and 40 at date 2. Prices are pa=100, pb=45 and

    asked by Lou
  112. Maths - Circular Motion

    One end of a string of length 1m is attatched to the rim of a 2m radius disc while the other end carries a mass of 5kg. If the tension in the string may not exceed 300N. find the maximum speed w in radians/sec and the corresponding angle of inclination of

    asked by Candice
  113. Maths : circular motion

    1. A 3 metre piece of string is threaded through a hole in the table. If equal portions of the string are above and below the table, and the top mass of 2kg rotates at 1rev/sec , how fast does the bottom mass of 1kg rotate? (in rev/sec) 2. If, in the above

    asked by Candice
  114. Sociology

    I would like to get a better understanding of Emile Durkheim's suicide study and its importance for a test next week.

    asked by Alex L.
  115. social science

    compare the believe systems of the khoikhoi with the early african farmers focus on the moon, singing and dancing, musical instruments and story telling

    asked by priscilla
  116. calculus

    find the equation of the tangent line for (xy)^2+(xy)-x=11 at the point (-11,0)

    asked by Anonymous
  117. maths

    whqt is the answer for i am a number .go round the corners of the given figure times.when you my value with the number of corners you have crossed you get 46

    asked by sajith
  118. Social Studies-Amrican History

    British Taxes - The student will evaluate the cause and effect relationship of British tax policies concerning the colonies. In March 1765, the British parliament announced a stamp tax. Starting that November, American colonists would be charged taxes on

    asked by Alice
  119. Calculating Chi Squared

    I did a biology experiment and I have to use the chi^2 method to calculate statistical significance. I got data at different time points and I just want to make sure what I'm calculating this right. The data I got for one time point are 6 and 23 I know the

    asked by Catherine
  120. science

    Do factors such as temperature, humidity, and air movement make it easier to analyze and measure air pollution?

    asked by Tameika
  121. science

    When chronic asthma is caused by air pollution what is this likely because of?

    asked by Tameika
  122. statistics

    What percentage of the area would the empirical rule say is between -3.00 and +3.00

    asked by Anonymous
  123. Biology

    Which of the following is not a benefit of genetic counseling: a.It helps identify parents at risk for having children with genetic defects. b.It assists parents in deciding whether or not to have children. c.It is based exclusively on family pedigrees.

    asked by Sam
  124. social studies

    How are public policy decisions made? Are the made based on what voters want? Are they made to avoid risk entirely or do they involve a balance of risk and benefits? Or do they include substantial risk? I am not sure.

    asked by Tameika
  125. English

    Could someone pleasr proofread this for me one last time? Even though people feel as if their past debt management mistakes should not count against them, credit scores are a fair measure to help lenders estimate potential risk because a credit score can

    asked by Anonymous
  126. physics

    Consider the window (of area 0.68 m2) of an airplane. If the pressure inside the plane is atmospheric pressure, while the pressure outside is 31 % of Patm, find the force on the window. Ignore the velocity of the airplane (i.e., ignore Bernoulli’s

    asked by Megan
  127. math

    1. You have $55000 to invest, and two funds you would like to invest in. The You-Risk-It Fund yields 13% interest. The Extra-Dull Fund yields 7% interest. Because of the college financial aid implications, you don’t think you can afford to earn more than

    asked by gaurav
  128. data management

    1) show that a) 2(2n-1 C n-1) = (2n Cn) b) n(2n C n) = (n+1)(2n C n+1)

    asked by jane
  129. help

    find all numbers for which the rational expression is undefinded 8/8z+7 I think the expression is undefined for all real numbers

    asked by Katie
  130. Math

    I really need help with these questions I am very confused !!! 16^-1(2^5) 3^-26^-2+3/2(-9)^-1 (5^0+5^2)^-1

    asked by Poppy
  131. ppaccademy Balangir math

    p(x)+q(x) and p(x)-q(x),where p(x)=x3-2x2(square)-3 and p(x)=x4+x3+x2-7x

    asked by Debashish Banchhor
  132. science

    a bullet has a momentum of 20kg*m/s -How fast would a car weighing 1200 kg should be moving to have the same momentum as the bullet expressed in miles/hr?

    asked by ann
  133. Biology

    i really need help i am so stuck!! use the crossover values given to calculate the sequence and the distnace apart of the genes indicated p-m 7% K-M 28% p-k 21% m-C 5%

    asked by Poppy
  134. Help

    Find the LCM t^3+8t^2+16,t^2-8t

    asked by Katie
  135. Help

    simplify by removing factor of 1 7z-49/7z I have the answer as -7

    asked by Katie
  136. Help

    Divide and simplify x^2-16/x divide by x+4/x+1 I get (x-4)(x+1)/X is this correct

    asked by Katie
  137. checking if i paraphrased correctly

    I was wondering if I paraphrased correctly. The original article is:(my work is at the end ) Known as the "Napoleon of the women's rights movement," Susan B. Anthony was the co-founder (with Elizabeth Cady Stanton) of the National Woman Suffrage

    asked by zahra
  138. Statistical significance

    I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light

    asked by Catherine
  139. abnormal psychology

    I need a reputable scholary web site that well explain the theoretical perspectives in maladaptive behavior

    asked by Sharon
  140. math

    1. You have $55000 to invest, and two funds you would like to invest in. The You-Risk-It Fund yields 13% interest. The Extra-Dull Fund yields 7% interest. Because of the college financial aid implications, you don’t think you can afford to earn more than

    asked by gaurav
  141. calculus

    find max and min of e^x-e^(3x) on interval where x is greater than or equal to 0 and less than or equal to 1

    asked by Anonymous
  142. Math

    Solve the linear equation. Solve for x and y y=-3/4x + 1/4 y=3/4x - 3/4

    asked by Amy
  143. statistics

    Find the value of zα/2 to construct a confidence interval with level: a. 95% b. 98%

    asked by Ayuda!!!
  144. statistics

    the average patient lasts 45 minutes on the tilt table. the current patient only lasted 15 minutes. if the standard deviation is 5 minutes. The Zscore that represents the current patients time of 15 minutes should be.

    asked by wanda
  145. Math

    Find three ordered pairs that satisfy the equation. y = x+2 (0,1)(0,3)(2,0)

    asked by Help
  146. algebra

    88 is 80% of what?

    asked by Sharday
  147. physics

    A compartment measures 3 meters by 5 meters and is 2.8 meters high. A fire raises the temperature from 20 degrees C to 1000 C. If the starting temperature assuming the compartment remains closed?

    asked by Deborah
  148. Physics

    A compartment measures 3.5 meters by 5.5 meters and is 3 meters high. A fire raises the temperature from 68 F to 1500 F. If the starting pressure was 1 atmosphere, what volume is present at the elevated temperature assuming the compartment has openings to

    asked by Deborah
  149. biology

    what is the promoter sequence for transcription? in regards to nucleotides

    asked by joe
  150. Composition

    For this assignment you are to look at the ways courtship rituals have (or have not) changed over the last generation or two. In order to do this, you will be required to spend some time interviewing a parent, grandparent, or another member of an older

    asked by Scott
  151. Science

    Is genetic engineering the answer to ending global hunger?

    asked by Akira
  152. science

    What pressure is exerted at the bottom of a tube of mercury 15 cm high?

    asked by Steve
  153. physics

    a 2500kg truck applies a force of 4000 N to the road to accelerate forward. What is its rate of acceleration?...can someone please help? I got half way and then got really confused what do I do? Thanks

    asked by Sarah
  154. history

    what did a diet at the asclepion consist of?

    asked by lissa
  155. history

    what treatments (natrual) would you find at the Asclepion?

    asked by lissa
  156. math

    what is the highth of a 30 in.tv that has the width of 24 inches?

    asked by katy
  157. math

    How do I estimate 791 divided by 38 and use compatible numbers if necessary

    asked by destiny
  158. chemistry

    If you have a solution that is 1.7 M sodium chloride and you have 1 L of that solution, how many moles of sodium chloride do you have?

    asked by emily
  159. English

    I need to know what just means in the following Sentance . Do you think this is just Please help even my mom is blank Tx

    asked by Zoe
  160. math

    x + y = 4 , x + z = 4, y + z = 4

    asked by barbie
  161. science

    does it take 96 percent less energy to make an aluminum can from recycled materials than it does to process it from new materials?

    asked by Tameika
  162. physics

    A 71.0 kg person steps on a scale in an elevator. The scale reads 722 N. What is the magnitude of the acceleration of the elevator?

    asked by Nick
  163. statistics

    Given x = 237;u=220 and s = 12.3 find z Help to at least start this

    asked by Amy
  164. MATH

    3X-2Y=-27 7X+85=Y

    asked by BOBBIE
  165. Biology 110

    by means of a chemical equation, show how the body rids itself of the major end-products of metabolism. Please explain.

    asked by Susan Yi
  166. Physics

    If the pressure outside a window drops by 9.1%, while the pressure inside does not change, what is the force on the window? Assume that the area of the window is 2.3 m2.

    asked by Megan
  167. Biology 110

    True or false 1. Warm temp increase the release of CO2 from hemoglobin in the peripheral circulation. 2.Exchange of respiratory gases is by diffusion as a result of concentration gradient. 3. Residual air is necessary to maintain patent alveoli and prevent

    asked by Susan Yi
  168. Biology 110

    Displacement of O2 from its respiratory pigment: A. occur more rapidly in cold temp. B. occur more slowly when Ph alkaline. C. occur more slowly when O2 tissue level low. D. none of these.

    asked by Susan Yi
  169. statistics

    can normal standard distribution have two modes?

    asked by AAS13
  170. Math

    If a is the greatest common factor of 72 and 48, and if b is the greatest common factor of 108 and 144, what is the least common multiple of a and b

    asked by Raj
  171. trig

    (3 tan^2x-1)(tan^2-3)= 0 can someone please explain how to do this problem and then explain the whole pie thing at the end...like, this is suppose to equal pie/6 b/c it's tan...im soooo confused.....

    asked by help?
  172. math

    Risa ( 2/3 Hours ) Kerri ( 1 1/2 Hours) Risa finished her workout just as kerri started hers. How long did it take from the time Risa started until Kerri finished?

    asked by johnny
  173. ppaccademy Balangir math

    p(x)+q(x) and p(x)-q(x),where p(x)=x3-2x2(square)-3 and p(x)=x4+x3+x2-7x

    asked by Debashish Banchhor
  174. science

    The kinetic energy of a baseball weighing 0.5 kg in its mid flight is 100 J. How high one needs to take the same ball so that it has the same potential energy?

    asked by ann
  175. grammar

    find italicized test

    asked by keith
  176. Help

    Solve a-1 a²-11 -4 = a+4 a+4

    asked by KATIE A
  177. natural disaster

    if volcanos and earthquakes, why do people choose to live in the area where it occurs the most?

    asked by jane
  178. Help

    Solve the equation q+7/4+q-3/3=5/2 I think there is no solution

    asked by Katie
  179. HELP

    simplify remove factors of 1 3v-9/3-v

    asked by Katie
  180. math

    the diagram shows the x is the radius of the large circle and the diameter of the snall circle.

    asked by ina
  181. trig

    given the following values, what is angle B? A= 46 degree b= 4 c= 8

    asked by rebecca
  182. Psychology

    It may be difficult to sooth a crying baby who needs to befed and changed with cuddling and toys. The strengthof the physical needs in this situation support: Would the answer be B- the incentive approach to motivation

    asked by Carol
  183. collefge

    At what volume of added acid is the ph calculated

    asked by ed
  184. Physics

    A woman drops a basketball, how far does it fall in one second? use formulas

    asked by Tony
  185. Math

    Simplify: 125•24divided by 6 + (8-1) Is 507 the correct answer?

    asked by Tonya
  186. math

    Graph the line! y=5x+2 the plot point that i came up with are (0,2)(2,8) is this correct?

    asked by Help
  187. math

    2 3(2x + 5)

    asked by michael
  188. algebra

    Simplify -9-(-3)

    asked by Nicole
  189. physics

    a bag weighing 9.4kg is dropped 1m onto concrete, what is the impact force in kg

    asked by paul
  190. physics

    if a bag weighing 9.4 kg is dropped 1m to someone below to catch,what is the total weight that the person would actually catch??

    asked by paul
  191. algebra

    What percent of 30 is 15?

    asked by Sharday
  192. Physics

    A compartment measures 3.5 meters by 5.5 meters and is 3 meters high. A fire raises the temperature from 68 F to 1500 F. If the starting pressure was 1 atmosphere, what volume is present at the elevated temperature assuming the compartment has openings to

    asked by Deborah