Questions Asked on
February 2, 2013

  1. Chemistry Problem

    Consider an ionic compound, MX, composed of generic metal M and generic halogen X. The enthalpy of formation of MX is ÄHf° = –457 kJ/mol. The enthalpy of sublimation of M is ÄHsub = 121 kJ/mol. The ionization energy of M is IE = 433 kJ/mol. The

    asked by Anonymous
  2. Physics

    Rank in order the following according to their speeds, from fastest (1) to slowest (5): (i) 425-nm-wavelength light through a pane of glass, (ii) 500-nm-wavelength light through air, (iii) 540-nm-wavelength light through water, (iv) 670-nm-wavelength light

    asked by Cassie
  3. Physcs

    A two-slit pattern is viewed on a screen 1.17 m from the slits. What is the width of the central bright fringe, if the third dark fringes on either side are 26.4 cm apart?

    asked by Michael
  4. chem

    The decomposition of sulfuryl chloride (SO2Cl2) is a first-order process. The rate constant for the decomposition at 660 K is 4.5 10-2 s-1. (a) If we begin with an initial SO2Cl2 pressure of 425 torr, what is the pressure of this substance after 74 s? what

    asked by Hannah
  5. Physics

    A 1500 W room heater is used daily for 4 hours during winter. If the cost per kWh is $0.5, what is the monthly (30 days) expense in using the room heater?

    asked by help please?
  6. MATH

    I need help idk how to do this... Select the measure of the complement or supplement of the angle. If there is no complement or supplement, select no complement or supplement. 55.1° (1 point) 124.9° 119.9° 49.9° no complement or supplement

    asked by Gabby
  7. Chemistry

    54.0 mL of a 1.50 M solution is diluted to a total volume of 258 mL. A 129-mL portion of that solution is diluted by adding 165 mL of water. What is the final concentration?

    asked by Sara
  8. Physics

    When a light passes from glass to air, which of the following is correct for the path of the light?

    asked by ............
  9. history

    what do you think contributed to the jump in productivity among american workers during world war 2?

    asked by raul
  10. Chemistry

    Can someone pls help me!! You decide to establish a new temperature scale on which the melting point of ammonia (-77.75 C ) is 0 A, and the boiling point of ammonia (-33.35 C ) is 200 A. What would be the boiling point of water in A ? What would be the

    asked by Greg
  11. Physics

    A circular loop with 30 turns and area of 0.25 m2 rotates at 100 rad/s. The axis of rotation of the loop is perpendicular to the direction of the magnetic field of 0.04 Tesla. What is the maximum emf induced in the loop?

    asked by fred
  12. statistics

    Suppose 1,600 of 2,000 registered voters sampled said they planned to vote for the Independent candidate for president. Using the 0.95 degree of confidence, what is the interval estimate for the population proportion (to the nearest tenth of a percent)?

    asked by Eric
  13. Physics

    A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor?

    asked by fred
  14. Statistics

    Accidents on a bike path. Examining the location of accidents on a level, 5-mile bike path shows that they occur uniformly along the length of the path. Figure 3.4 displays the density curve that describes the distribution of accidents. (a) Explain why

    asked by Mary
  15. physices

    A simple pendulum is made from a bob of mass 0.04 kg suspended on alight string of length 1.4m. Keeping the string taut, the pendulum is pulled to one side until it has gained a height of

    asked by betiglu
  16. Physics

    The second harmonic of a guitar string has a frequency of 120 Hz. What is the length of the guitar string if the speed of the waves on the string is 110 m/s?

    asked by anonymous
  17. Physics

    Two positive charges of 6 �C are separated by a distance of 50 cm in air. What is the electric field strength at the midpoint of the line joining the charges?

    asked by help please?
  18. reading

    an example of parallelism and page in to kill a mockingbird

    asked by Taylor
  19. Math--Please help

    Prove that no isosceles right triangle exists whose sides are integers.

    asked by Barb
  20. System Analyst and Design

    Terrier News Situation: Terrier News is a monthly newsletter devoted to various breeds of terriers and topics of interest to terrier owners and breeders. Annie West, the editor and publisher, asked you to help her design a system to enter and manage the

    asked by Pete Watson
  21. Physics

    A proton and an electron enter perpendicular to the direction of the magnetic field. The speed of the proton is twice the speed of the electron. What is the ratio of the force experienced by the proton to the electron? Thanks for helping me out

    asked by fred
  22. calculus

    Using an upper-case "C" for any arbitrary constants, find the general indefinite integral ∫ (-2-t)(-9-t^2) dt Now I multiplied both parentheses to get: ∫ (18 + 2t^2 + 9t + t^3) dt now I integrated and got: 18t + 2t^3/3 + 9t^2/2 + t^4/4 + C but I'm told

    asked by Tom
  23. math

    franklin school has 3 boys for every 4 girls in the fifth grade.there is 140 students in the fifth grade. A. how many are boys and how many are girls??? pleassseee helpppp meeeeee!!!!

    asked by wobble it
  24. physics

    Tarzan swings through the jungle by hanging from a vine. At the lowest point of a swing, Tarzan's acceleration is.... A. zero B. not zero C. one cannot be sure whether it's zero or not zero without additional information.

    asked by sam
  25. Chemistry

    At 1 atm, how much energy is required to heat 67.0 g of H2O(s) at –14.0 °C to H2O(g) at 115.0 °C? Please explain, I'm not very good at Chemistry and this problem is giving me a headache. Thank you!

    asked by Anonymous
  26. English

    Where reading the poem "LEGAL ALIEN" by Pat Mora . We have to find the rhythm,meter, and assonance . I cant fimd any of that in the poem . Please tell me what each one of them are in the poem .. Reply ASAP please

    asked by Anna
  27. PLEASE HELP TANGENTS AND CIRCLES PROBLEM GEOMETRY

    PLEASE HELP I REALLY NEED HELP. Each of the three circles in the figure below is externally tangent to the other two, and each side of the triangle is tangent to two of the circles. If each circle has radius three, then find the perimeter of the triangle.

    asked by Knights
  28. math

    an airplane is flying at a height of 2 miles above the level ground. the angle of depression from the plane to the foot of a tree is 15 degree. Find the distance that the plane must fly to be directly above the tree.

    asked by Anonymous
  29. analytical chemisty

    Consider the standardization of a solution of K2Cr2O7 with iron metal according to the following: Reaction: Fe + Cr2O7-2 → Fe +3 + Cr+3a. How many grams of K2Cr2O7 are required to prepare 500 ml of a 0.13 N solution? What is the exact normality of the

    asked by Anonymous
  30. PHYSICS

    A block with mass m1 = 9.0 kg is on an incline with an angle θ = 32.0° with respect to the horizontal. For the first question there is no friction, but for the rest of this problem the coefficients of friction are: μk = 0.28 and μs = 0.308. To keep the

    asked by HIBA
  31. Math

    A random sample of 42 college graduates revealed that they worked an average of 5.5 years on the job before being promoted. The sample standard deviation was 1.1 years. Using the .99 degree of confidence, what is the confidence interval for the population

    asked by Jim
  32. Physics

    A proton experiences a force of 4 Newton when it enters perpendicular to the direction of the magnetic field with a speed 100 m/s. What is the force experienced by the proton if it enters parallel to the direction of the magnetic field with a speed of 200

    asked by fred
  33. PHYSICS

    Two capacitors are connected to a battery. The battery voltage is V = 60 V, and the capacitances are C1 = 2.00 μF and C2 = 4.00 μF. Determine the total energy stored by the two capacitors when they are wired (a) in parallel and (b) in series.

    asked by PLEASE HELP
  34. Chemistry

    A vinegar sample is found to have a density of 1.006 and to contain 4.7 acetic acid by mass.How many grams of acetic acid are present in 3.00 of this vinegar?

    asked by Lisa
  35. Chemistry

    In the situation that a solute dissolves in a solvent, the solute molecules often dissociate and associate. Studying for exam, not sure how to explain HOW dissociation and association affects the molar mass of the solute in this system. (What is

    asked by AhmadM
  36. Physics

    Wes and Lindsay stand on the roof of a building. Wes leans over the edge and drops an apple. Lindsay waits, 1.25s afrer Wes releases his fruit and throws an orange straight down at 28 m/s. Both pieces of fruit hit the ground simultaneously. Calculate the

    asked by Wes
  37. Analytical chemisty

    How many grams of K2Cr2O7 are required to prepare 500 ml of a 0.13 N solution?

    asked by Anonymous
  38. Physics

    A watermelon cannon fires a watermelon vertically up into the air at a velocity of +11.5 m/s, starting from an initial position 1.20 meters above the ground. When the watermelon reaches the peak of its flight, what is (a) its velocity, (b) its

    asked by Kathy
  39. math help now please

    If a figure is a rectangle ABCD and the measure of angle ABD is 35 degrees what is the measure of the angles ABD CBD and BDC

    asked by noahc
  40. Chemistry

    You decide to establish a new temperature scale on which the melting point of ammonia (-77.75 C ) is 0 A, and the boiling point of ammonia (-33.35 C ) is 200 A. What would be the boiling point of water in A ? What would be the temperature of absolute zero

    asked by Greg
  41. Physics

    Wes and Lindsay stand on the roof of a building. Wes leans over the edge and drops an apple. Lindsay waits, 1.25s afrer Wes releases his fruit and throws an orange straight down at 28 m/s. Both pieces of fruit hit the ground simultaneously. Calculate the

    asked by Wes
  42. ELAPSED TIME

    How long did John sleep if he went to bed at 9:40 P.M., and got up at 7:20 A.M.?

    asked by MALAYSHA
  43. Physics

    A cheetah can run with a speed of 29 m/s. Determine the distance travelled by a running cheetah in 8.6 s

    asked by Amanda
  44. history

    why did the national debt rise so quickly during world war 2?

    asked by raul
  45. Physics

    A total of 100000 kg of water per second flows over a waterfall 30 m high. If half of the power this flow represents could be converted into electricity, how many 100 watt lightbulbs could be supplied?

    asked by Olivia
  46. chemistry

    Write the formula of the conjugate acid of base HCO3-,HPO2-,PO43-,SO32-

    asked by baron
  47. Chemistry

    In the case of a small amount of your unknown failed to dissolve in the t-butanol, would it effect the molar mass? = Does molarity increase as molar mass increases?

    asked by AhmadM
  48. stat

    if the heights of men follow a normal distribution, and 99.7% fall between 5" and 7" what is the estimate standard deviation of the height?

    asked by lena
  49. Physics

    Classify the following measurements as scalar of vector quantities. A.) 15 s B.) 4.2 m ( up) C.) 100 km/h (S) D.) 2.8 kg

    asked by Amanda
  50. Chem Help!!

    A standard 1.000kg- mass is to be cut from a bar of steel having an equilateral triangular cross section with sides equal to 3.00in. The density of the steel is 7.70g/cm^3. How many inches long must the section of bar be?

    asked by Lisa
  51. chemistry

    Classify each of the follow species as bronsted lowry acid or base NH3,NCN

    asked by baron
  52. MATH - immediate help needed!

    Please provide the solution to the below problems: In a certain state lottery, a player selects four different numbers from 1 through 30. Find the probability that a single choice of four numbers wins the lottery, assuming the order of the numbers is not

    asked by Vivan
  53. a&p

    In modern blimps, the gas of choice is used to inflate them is helium is safer. Compare and contrast the atomic structure of hydrogen and helium. What characteristics of the atomic structure of helium make it so much less reactive than hydrogen?

    asked by tameka
  54. Physics

    what is the final temperature of mixture, if 100gm of ice at 0 degree celcius into 100gm of water at 20 degree celcius in an iron vessel of mass 100gm.(specific heat of iron=0.1)

    asked by Manish
  55. history

    what was necessary for the united states to be able to increase its production of war materials in a short period of time?

    asked by alex
  56. Physics

    Give one block a small initial displacement and the other block a larger one. Click start, and watch the animation. Then select each statement below that is true.

    asked by Anonymous
  57. Physics

    A boat which travels 100 km (N), then 40 km (N), and finally 80 km (S). The entire trip takes 6.5 hours. A.) Calculate the total displacement of the boat B.) calculate the velocity of the boat

    asked by Amanda
  58. a&p

    How would you contrast single convalent bonds, double covalent bonds, ionic bonds?

    asked by tameka
  59. Chem Help!!

    The volume of a red blood cell is about 90.0*10^-12cm^3 Assuming that the red blood cells are spherical, what is the diameter of a red blood cell in millimeters?

    asked by Lisa
  60. Science

    Ms. Lewis is a chemist mixing two solutions together. A chemical reaction takes place, and the solution becomes warm. Which statement best describes what has happened? A. Energy has been created in the form of thermal energy B. Energy has been transformed

    asked by Anne
  61. Physics

    During the second stage of a rocket launch the rockets upward velocity increases from 980 m/s with an average acceleration of 33 m/s (upward). How long did the acceleration last?

    asked by Amanda
  62. math

    how many combinations can you get with 18 flavors of ice cream and 70 toppings?

    asked by Emily
  63. math

    Three people are to be selected at random, each will be given one gift card. There is one card from Home Depot,one from Best Buy and one from Red Lobster. The first person selected will get to choose between the two remaining cards. The third person

    asked by carol
  64. english

    in to kill a mockingbird what is an xample of an alliteration

    asked by Taylor
  65. Physics

    Wes and Lindsay stand on the roof of a building. Wes leans over the edge and drops an apple. Lindsay waits, 1.25s afrer Wes releases his fruit and throws an orange straight down at 28 m/s. Both pieces of fruit hit the ground simultaneously. Calculate the

    asked by Wes
  66. physical science

    A man pulls a lawnmower with a mass of 50 kilogram accross a lawn, its pulling force is 400 newtons at angle of 50 degrees with a horizontal line.(a) resolve the force into two components , one parallel to the ground and one perpendicular to the ground

    asked by Pertunia
  67. science

    how many ions of potasium are there in 4.2vgrams of K3PO4 (molar mass=212.264g/mol )

    asked by Anonymous
  68. math

    one elevator leaves first floor of a building at 9:00 a.m. It takes 5 seconds to travel between floors, stays 10 seconds at each floor and stops at each floor on its way to the top. Another elevator leaves the 12th (top) floor at 9:00 a.m. ; it takes 5

    asked by Sena
  69. Physics

    webassign(.)net/yf/22-30.gif The image above shows some of electric field lines due to 3 poin charges along the vertical axis. All 3 charges have the same magnitude. A. What are the signs of the 3 charges? Explain reasoning. B. At what points is the

    asked by Justin
  70. chemistry

    how many grams of magnesium are required to react with 2.0 moles of hydrochloric acid?

    asked by Z
  71. Chemistry

    The density of aluminum is . A square piece of aluminum foil, 20.02 on a side is found to weigh 2.573 .What is the thickness of the foil, in millimeters?

    asked by Lisa
  72. investing

    A company is thinking of investing some surplus cash in 30 year $1000 face value Microsoft 6% annual coupon bonds. It plans to pay $925 each for 10,000 of them, now, and expects to SELL them for $1025 each at the end of 5 years. Make a determination about

    asked by Mitch
  73. a&p

    How does ATP supply the cells with the energy they need to work? Outline the general scheme of the ATP energy cycle.

    asked by tameka
  74. algebra 2

    to solve the system of equations which expression could be substituted for x into the first equation? first: 2x+7y=10 second: x-2y=15

    asked by Anonymous
  75. biology help plz?????????????????

    the mRNA squence below is shown along with the polypeptide which would be produced when it is translated .what polypeptide would be produced if the fifth base in the mRNA sequence shown had been changed to A as result of a mutation in the DNA from which

    asked by centya
  76. math

    425 in tickets were sold they were either adults or students tickets the number of student tickets were sold was three times the amount of adult ticket sold how many adult tickets were sold

    asked by Anonymous
  77. Physics

    A capacitor has a charge of 5 µC when charged by a potential difference of 1.5 V. What is the capacitance of the capacitor?

    asked by anonymous
  78. Calculus

    Find the equation of the tangent line to the curve y=2sinx at the point ((pi/6), 1). The equation of the tangent line can be written in y=mx+b form, where m=sqrt3. What is b?

    asked by Anonymous
  79. Math

    A club is selling mugs with three different sports logos. The club sold 2(4m-25) football mugs, 2(4m-15) basketball mugs, and 4m+38 soccer mugs. Which expression represents the total number of mugs that the club sold? A. 18m-57 B. 18m-2 C. 16m-57 D. 15m+3

    asked by Anne
  80. math

    what is the math trivia of direct square variation?

    asked by erica
  81. maths-urgently needed-plse help

    A manufacturer lists the price of the goods at Rs.240 per article. The wholesaler ge6ts a discount of 25% on the goods from the manufacturer. The retailers are allowed a discount of 15% on the list price by the wholesaler. The prescribe rate of sale tax at

    asked by Anonymous
  82. maths

    If the weight of a spherical shell is 7/8th of what it would be if it were a solid shell, find the ratio of the inner and outer radii of the shell.

    asked by Anonymous
  83. math

    f(x)=x^2-mx+5 and g(x)=nx^2+x-3. The functions are combined to form the new function h(x)=f(x)+g(x). Points (1,3) and (-2,18) satisfy the new function. Determine the values of m and n.

    asked by Anonymous
  84. math

    Describe the sequence and types of transformations required to transform the graph of y=x^3 into the graph of y=2f{-2(x-1)}+4. Give the equation of new transformed function with detailed explanation.

    asked by Anonymous
  85. History

    The first European power to explore the coast of West Africa was A. England B. Portugal C. Holland D. France

    asked by Beth
  86. math

    n points are arranged on a cirlce and all the chords drawn. Let I(n) be the number of intersection points inside the circle if no 3 chords are concurrent. Find a formula for I(n).

    asked by Brenda
  87. math

    A cliff on the bank of a river is 300m high if angle of deprssion of a point on the oposite side of the river is 60 digree find the wigth of the river

    asked by MD
  88. science

    "Reproductive cells and somatic cells are not separated early in development, as they are in animals。 Instead, plant somatic cells that have undergone many rounds of mitosis can undergo meiosis and produce gametes." This is said in my notes under

    asked by Jane
  89. a&p

    If an adult has a body weight of 170 pounds, how much of that weight consists of water.

    asked by tameka
  90. maths

    the points A(2,3) B(4,-1) C(-1,2) are the vertices of a triangle. find the length and perpendicular from A to BC and hence the area of ABC

    asked by Anonymous
  91. System Analyst and Design

    Sky-High Internet Services Situation: Sky-High Internet Services is a leading Internet service provider in a metropolitan area. The new customer billing system has caused an increase in complaints. Tammy Jones, the office manager, asked you to investigate

    asked by Pete Watson
  92. biology help plz?????????????????

    product of The oxidative phosphorylation / electron transport is ? in stage of glucose oxidation a)pyruvate b)oxygen c)water d)NAD e)ATP f)NAD.2H g)carbon dioxide h)ADP CHOSE TWO ANSWER FROM THE FOLLOWING LIST product of Glycolysis is? a)pyruvate b)oxygen

    asked by centya
  93. math

    cos^2 theta - sin^2 theta = 1

    asked by Amirul Thaqif
  94. World History

    During the European medieval period, there was no strong centralized government. However, advances were made in the areas of (a) art, science and communication, (b) agriculture, technology and ship design (c) medical knowledge (d) all of the above

    asked by Beth
  95. math

    A company uses the function C(x)= 20.50x+2000, where C is the cost and x is the number of units it produces, to determine its daily costs. Find the inverse of the function and determine how many units are produced when the cost is $625,000.

    asked by Anonymous
  96. Chemistry

    A gas occupies a volume of 502 cm3 at 20.0 C. What will be its volume at 106 C? I understand that it follows Charles' Law where the correct equation is V1/T1=V2/T2. My teacher expects all units of volume to be converted to Liters and all temperature to

    asked by Sean
  97. basic college math

    write 14.825 as a faction

    asked by Cindy
  98. History

    The Soviet Leader who did the most to end the Cold War was which of these? A. Joseph Stalin B. Nikita Khrushchev C. Leonid Brezhnev D Mikhail Gorbachev

    asked by Beth
  99. History

    The advantage of the Phoenician system of writing over the Chinese, Sumerian, and Egyptian was that it (a) used fewer sounds (b) used fewer pictures (c) used fewer symbols (d) none of the above

    asked by Beth
  100. math

    I have a question is this cheating when we ask questions from our school work ? Wouldn't our on line school know we are kids are doing this ? What is an ethical homework question ? Curious..

    asked by Molly
  101. English

    I am categorizing files by numbers. But I have a couple of files w/o #'s. Then what 1 label would I give these group of files? Ex: # Unknown...

    asked by T
  102. math

    7 2/5 - 2 3/4 = I need to show how I got the answer

    asked by JR
  103. Calculus

    f(x)=(5x)/(1+2x^2). f'(4)=-75/289 f'(x)=(5-5x^2)/1+2x^2+x^4) Use this equation of the tangent line to the curve y=5x/(1+x^2) at the point (4, 1.17647). The equation of the tangent line can be written in the form y=mx+b. m=-75/289. What is b?

    asked by Anonymous
  104. Probability

    if a coin is tossed twice, how many times would the head appear?

    asked by Anonymous
  105. Chemistry

    Freezing point of pure water = -2, Freezing point of Unknown solution = -1 Mass of unknown in 50g of water = 1.9964g. Calculate the delta T for the solution of the unknown solid and determine the molecular weight of the unknown solid.

    asked by Anna
  106. English

    In the Adventures of Huck Finn DISCUSS TOM'S RESPONSE WHEN THE REAL TOM SAWYER ARRIVES. WHO DOES TOM PRETEND TO BE?

    asked by Pia
  107. bussiness law

    identify and protect the tangible property rights of walmart (retail) relating to discriminatory issues and the associated legal considerations. I have searched Google and my book and I can not find this. PLEASE HELP

    asked by patiance
  108. trigonometry

    what is the graph of y= cos2(x-pi)+2

    asked by Betty
  109. Math

    z(-3)

    asked by Yvonne
  110. math

    Find the function g, given that g is linear, the graph of g has y-intercept -2. And g(1) =5.

    asked by Vivan
  111. economics

    If the government imposes a quantity tax on the consumption of a good, it means that the consumer has to pay for each unit of the good its price plus the tax. For example, if the price of a chocolate bar is $5 and the government imposes a tax of 20 cents

    asked by raina
  112. Math(Trigonometry)

    kos^2 theta - sin^2 theta = 0.25

    asked by aaa
  113. Math

    a square pizza measuring 8 inches by 8 inches that costs $10 or a round pizza with a 9 inch diameter that also cost $10

    asked by Debbie
  114. Web Design and Development

    Explain how an affiliate program works as both an advertising program and a revenue generation program; give two real-world affiliate program examples.

    asked by Pete Watson
  115. Web Design and Development

    Social media is a good method for promoting a published Web site or business. Find two examples of companies who are using social media and interactive Web tools, or blogging to reach their customers. Write a brief summary that describes the methods being

    asked by Pete Watson
  116. algebra

    division equation 128/n=8

    asked by Anonymous
  117. Physics

    In the human body, blood travels faster in the largest blood vessel, the aorta than in any other blood vessel. Given an average speed of 30 cm/s, how long would it take the blood to travel 5 cm?

    asked by Amanda
  118. Corrected Temperature Problem

    Q: The activation energy of a certain reaction is 32.9 kJ/mol At 25 degrees C the rate constant is 0.0160 units s-1 units. At what temperature in degrees Celsius would this reaction go twice as fast? My work: ln(0.0160/0.032) = (32,900/8.314)(1/T2 -

    asked by Amy
  119. Temperature Problem

    Q: A reaction rate has a constant of 1.23 x 10-4/s at 28 degrees C and 0.235 at 79 degrees C. Determine the activation barrier for the reaction. A: My work thus far: ln(1.23 x 10-4/0.235)=(Ea/8.314)(1/301.15-1/352.15) -7.551=(Ea/8.314)(0.0048090535)

    asked by Amy
  120. Life Orientation

    What can one do to deal with unethical behaviour.Name 4 actions to take

    asked by Luntu
  121. World History

    Arabs are joined together through (a) kinship through a male line (b) arranged marriages (c) kinship through a female line (d) agreements by kings

    asked by Beth
  122. math

    The population of a slow growing bacterial culture can be represented by the function P(t)=t^2-0.7t+10, where t is measured in seconds. a) Determine the populations of bacteria at 2.5 seconds. b) Determine the average rate of change in the bacteria

    asked by Anonymous
  123. human resources

    what is stihl inc usa SWOT?

    asked by win
  124. thermodynamics

    equal to 1/4 th of the heat rejected to the sink. the efficiency of the engine is

    asked by Anonymous
  125. Math

    Which of the following expressions is the simplified form of -8+3(2p-4)+10p ? A. 16p-20 B. 8p-10 C. 6p-12 D. 12p-9

    asked by Anne
  126. college algebra

    Slope intercept Vertical, passing (5,-1) Do you solve like this? M1= m/5-5m M=5

    asked by Anonymous
  127. algebra

    how to solve the formula for the indicated letter for x= w + y + z/4 for y

    asked by Laura
  128. basic college math

    what is 4/13 written as a decimal?

    asked by Cindy
  129. Soc

    In Turkey, putting your hands in your pockets is considered disrespectful. Therefore, this particular behavior is deemed inappropriate when evaluated in this

    asked by Jill
  130. Travel tourism

    describe tourism

    asked by Raf
  131. math

    if i have a phone card with 15 doloars on it and it is 7 cent a min i use the ohone once and have a balance of 13.25 how many mins was i on the phone

    asked by Anonymous
  132. college algebra

    Direct variation Find y when x=5, if y=7 when x=14 I think the answer is 2.5 but don't know for sure:-)

    asked by Anonymous
  133. Fractions

    Eighty people were invited to vote in the extension club's elections and 9/10 of them voted. How many people voted in the elections? 74, 73, 72, 75 My answer is 73

    asked by Suzy
  134. Chemistry

    You have a 100mL cylinder containing 40mL of water. A cube measures 2cm on each side is lowered into the cylinder. What is the new volume reading of the cylinder?

    asked by Terra
  135. math,probability

    Hi, I don't understand a homework question, can anyone please help me? I'm bad at probability. what is the probability that when you pick two cards, you will select at least one king out of two in a deck of six standard cards? (assuming there are no

    asked by Samantha
  136. college general chemistry

    Calculate the volume of a rectangular solid with a thickness of 0.750 cm and an area of 8.25 cm2

    asked by Amber
  137. Math

    A circular table has a diameter of 48". The table can be enlarged by inserting two rectangular leaves, each 18" wide and 48" long. What is the area of the expanded table?

    asked by Barb
  138. english

    i need help, i am writing a paper on gay marriage. I need to write a compound-complex sentence on it too. help!

    asked by kevin
  139. Math

    Graph the polygon and give the specific name for the polygon. A(-1,-2),B(0,3),C(1,-2)

    asked by Vanessa
  140. Math

    What is the best estimate for the height of the basketball net ? A - 6 feet B - 6 yards C- 16 feet D - 60 yards Which is the best estimate for the width of a classroom ? A- 4 feet B- 4 yards C- 40 yards D - 400 feet

    asked by Carlos
  141. math

    please help. what is the probability that when you pick two cards, you will select at least one king out of two in a deck of six standard cards? (assuming there are no jokers)

    asked by Anonymous
  142. Math

    rename or simplify as needed 11 1/4 - 5 8/9

    asked by JR
  143. math

    4 5/8 + 9 3/5 = rename or simplify as needed

    asked by JR
  144. math

    average daily balance . find the credit card finance charge for the month of august (31 days) the annual interest rate is 18% July 31 balance $510 August 9 charge $86 August 10 payment $390 August 22 charge 147 August 27 charge $14

    asked by medlin
  145. Calculus

    f(0)=7, g(0)=5, f'(0)-=-12, and g'(0)=5. Find h'(0) for the function h(x)=f(x)/g(x)

    asked by Anonymous
  146. math

    Generalize the pattern for the division of (x^n)-(y^n) by x-y

    asked by Brenda
  147. Physics

    Two resistors 10 Ù and 5 Ù are connected in parallel across a 15 V battery. What is the potential difference across the 10 Ù resistor? Which formula do I use?

    asked by justonequestion
  148. college algebra

    Find y when x=1/2, if y=3/2 when x=10 How do you work this?

    asked by Anonymous
  149. math

    if you are making 34 trophies plates that 3 1/4" long and 1" wide what size sheet of brass would be needed if plates are aligned with 2 plates per horizontal line

    asked by Zona
  150. Calculus 2

    I have this integral that I don't know how to solve: ∫ (x-3)/sqrt(x) Would I multiply both parentheses first? or just turn it into (x-3)(x^-0.5)?

    asked by Tom
  151. Enlgish

    I need someone to write me a 14 line to syllable poem/ sonnet about love (for him) please helP!

    asked by Ginger
  152. Math - Radicals

    How do you solve 7√3 + √3? I really need help.

    asked by Dorana
  153. maths

    I don't understand how 4root(t cubed) is 4t power (3/2)

    asked by anonymous
  154. legal and ethics laws

    the ethical implications of committing an intentional or quasi-intentional tort

    asked by Anonymous
  155. math

    find n(A)for each set A={1/2, -1/2, 1/3, -1/3,..., 1/10, -1/10}

    asked by billy
  156. Chemistry

    You have 1.0 mol of HCL and you want to dilute it to .1 mol. How many mL out of 50 should it take up?

    asked by Anonymous
  157. math and litetature

    Just wanted to say thank you to all of you for helping us. Helping us understand when we can't get help anywhere else any time. So, thank you. A student

    asked by A student
  158. chemistry help !!!!!!!!!!!!!!!!

    complete the following paragraph relating to the enzyme,b -galactosidase .this enzyme hydrolyses the disaccharide lactose to constituent monosaccharides ,galactose and glucose ,drag and drop the approprite words into the correct space. the enzyme

    asked by john
  159. chemistry help !!!!!!!!!!!!!!!!

    complete the following paragraph relating to the enzyme,b -galactosidase .this enzyme hydrolyses the disaccharide lactose to constituent monosaccharides ,galactose and glucose ,drag and drop the approprite words into the correct space. the enzyme

    asked by john
  160. Calculus Help?!?!

    Megan bailed out of her plane at an altitude of 8000 feet, fell freely for 15 seconds, and then opened her parachute. Assume that the drag coefficients are a=0.1 for a free fall and a=1.6 with a parachute. When did she land(in seconds)?

    asked by Nycw
  161. trigonometry

    what is the graph of y= tan(2x-pi)

    asked by Betty
  162. trigonometry

    what is the graph of y=sec(x+pi/2)

    asked by Betty
  163. trigonometry

    what is the graph of y= arccos(x-2)

    asked by Betty
  164. Math

    z(-3)

    asked by Yvonne
  165. physics

    An object is dropped from ret from a height of 39.4m. What is its average acceleration (assumed to be constant) if it hits the ground with a speed of 1.61m/s? My quesion is, is a not 9.8 since gravity is acting on the object.

    asked by Jane
  166. math

    please give me algorithm how to solve the lim sqrt(tan(0.25ïx))^(1/(x^2-1)) x->1

    asked by easy
  167. biology

    What is the scientific reason to the larger population of females than males in countries in relation to chromosomes?

    asked by Mengistu
  168. maths

    find shortest distance between the line : (x - 8)/ 3 = (y + 19)/-16 = (z - 10)/ 7 and (x - 15)/ 3 = (y - 29)/8 = (z - 5)/ -5

    asked by Anonymous
  169. Science

    Describe the movements of particles in a cold glass as thermal energy is transferred to it from warm hands?

    asked by Haliey
  170. alg 7

    A triangle with 3 sides all differnt- 19.5, 32.5, 26. What is the area? I don't even know the formnula

    asked by unknown.gonegirl
  171. science

    Sky-High Internet Services Situation: Sky-High Internet Services is a leading Internet service provider in a metropolitan area. The new customer billing system has caused an increase in complaints. Tammy Jones, the office manager, asked you to investigate

    asked by Pete Watson
  172. Computer

    Write a pseudocode to input 10 temperatures per day for 20 days and output the average per day and the average for the 20 days.

    asked by Raf
  173. Math

    If 4 is added to the numerator & denominator of 5/7, by how much is the fraction increased? Please show solution.. thanks

    asked by JCO Sabellano
  174. math

    For f={(-4,4),(-2,4),(1,3),(3,5),(4,6)} and g={(-4,2),(-2,1),(0,2),(1,2),(2,2),(4,4)} Find a) f+g b) f-g c) g-f d) fg

    asked by Anonymous
  175. math

    If f(x)= x^2-4 and g(x)= 2x-7 Find a) f(g inverse(x)) b) g((g)inverse(x))

    asked by Anonymous
  176. math

    Find the image of (3,-4) corresponding to y=f(x) if it undergoes the following transformations. a) 3f(x-2)+6 b) -f(-x+4)-2 c) f(3(x+2))

    asked by Anonymous
  177. math

    n points are arranged on a cirlce and all the chords drawn. Let I(n) be the number of intersection points inside the circle if no 3 chords are concurrent. Find a formula for I(n).

    asked by Brenda
  178. JD

    Find the slope of the line passing through the points (0, -4) and (-6, 7).

    asked by Anonymous
  179. math

    For the function f(x)= {x^2, if x than or equal to 1. Is f(x) continuous at x=1. Explain.

    asked by Anonymous
  180. college algebra

    Write slope-intercept equation Passing through the points (-6,-9) and (0,8) I think it's this just making sure: M=(8-(-9))/(0-(-6)) =17/6 Y= -17/6x+36/6 Y=-17/6x-6 M=17/6 and Y=-6

    asked by Anonymous
  181. physics

    This is my problem: A particle with a density of 0.9g/ml is suspended in a solution that has a density of 1.1g/ml. It cannot be sedimented. Using the equation that describes the movement of a particle in a centrifugal field, describe why this is true. The

    asked by Dave
  182. maths

    1) find the mean number of heads in 3 tosses of a fair coin?

    asked by Anonymous
  183. World History

    The person who might be called the "father of the hydrogen bomb" is (a) Enrico Fermi (b) Robert Oppenheimer (c) Niels Bohr (d) Edward Teller

    asked by Beth
  184. Question

    I am categorizing files by numbers. But I have a couple of files w/o #'s. Then what 1 label would I give these group of files? Ex: # Unknown...

    asked by T
  185. Math

    Which of the following expressions is the simplified form of 3y+8y-4+7-2y? A. 11y+3 B. 9y-11 C. 11y-3 D. 9y+3

    asked by Anne