Questions Asked on
October 17, 2015

  1. HELP CALCULUS

    Find dy/dx by implicit differentiation. tan−1(4x2y) = x + 3xy2

    asked by Anonymous
  2. Chemistry

    which gas sample has the greatest volume at STP? a)10.0g Ar b)10.0g Kr c) 10.0 g Xe d) none of the above (They all have the same number)

    asked by Mark
  3. Algebra 2

    Which set of ordered pairs in the form of (x, y) does not represent a function of x? {(0, 2), (1, –1), (2, 3), (3, –2)} {(0, –2), (1, 1), (2, 3), (3, –2)} {(0, 2), (–1, –1), (2, –3), (3, 2)} {(0, 2), (1, 2), (1, –2), (3, 2)}

    asked by Sandra
  4. Business Math

    What will be the total deduction for social security and Medicare taxes on Rony's next semimonthly paycheck of $3,960.00, if she has already earned $42,560.00 this year? (Social security tax is 6.2% of gross wages up to $106,800. Medicare tax is 1.45% of

    asked by Vic
  5. chemistry

    Sucrose (C12H22O11, table sugar) is oxidized in the body by O2 via a complex set of reactions that ultimately produces CO2 (g) and H2O (g) and releases 5.16x10^3 kJ/mol sucrose. a) Write a balanced thermochemical equation for this reaction. Make sure to

    asked by patrick
  6. Chemistry

    A 255mL gas sample contains argon and nitrogen at a temperature of 65 degrees celsius. The total pressure of the sample is 725mmHg and the partial pressure of argon is 231 mmHg. what mass of nitrogen is present in the sample?

    asked by Mark
  7. Chemistry

    A gas mixture in a 1.55L at 298K container contains 10.0g Ne and 10.0g Ar. Calculate the partial pressure " in atm" of Ne and Ar in the container

    asked by Mark
  8. Algebra 2

    Does this verbal phrase translate into the algebraic expression correctly? The quotient of seven times a number and three (7x) / 3

    asked by Lou
  9. Math

    a cell phone company offers the following plan: monthly charge (which includes 500 minutes) for $40 and a charge for additional minutes will be 5 cents a minute. write a piecewise function function putting x&y terms that can be used in any # or minutes. I

    asked by Brianna
  10. physics

    An elevator is moving upward with a speed of 11 m/s. Three seconds later, the elevator is still moving upward, but its speed has been reduced to 5.0 m/s. What is the average acceleration of the elevator during the 3.0 s interval? a.5.3 m/s2, upward b.2.0

    asked by N
  11. Business Math

    The weekly payroll of Abkar Hardware includes 19 employees who earn $280.00. How much is the employer's share of total social security and Medicare taxes for the first quarter of the year?

    asked by Vic
  12. History

    Can someone check my history questions? Please? 1) Republicans were responsible for the passage of the Thirteenth Amendment, which effectively nullified the Three-fifths Compromise. Why was this an issue of concern for Republicans? A) because it meant that

    asked by Abby
  13. Math

    Find the area of the parallelogram. 13 times 8

    asked by gavin
  14. Physics

    At t=0 a particle leaves the origin with a velocity of 5.0 m/s in the positive y direction, its acceleration is given by a=3i-2j m/s^2 At the instant the particle reaches its maximum y coordinate, how far is it from the origin? I'm not sure how to do a

    asked by alyssa
  15. Business Math

    The last semimonthly payroll of Garcia Carpentry was $84,248 of gross wages for 38 employees. The company pays 5.2% of payroll for vacations and sick leave and $72.22 per employee for health insurance. What percent of payroll is the total cost of fringe

    asked by Vic
  16. math

    Find the length of a guy wire that makes an angle of 45.5 degrees with the ground if the wire is attached at the top of a tower 63.0 meters high

    asked by Ashley
  17. Math

    Could someone please check my questions? My answers are under the questions... and any help will be greatly appreciated 33. Jane works at the public library after school. She makes $7.00 per hour. She cannot work more than 15 hours per week. If y = 7x

    asked by Abby
  18. Science

    1. True or False: If the net force of an object is 0 N, the forces are considered unbalanced. (True) 2. Which of the following forces causes a feather to fall slower than a blowing ball? gravity © rolling friction sliding friction air resistance 3. A

    asked by Halie
  19. Multi-cultural Psychology

    “I have a big nose and my hair is too straight. I just can’t seem to do anything right!” These statements are a reflection of: A. the fundamental attribution error. B. standup comedy. C. ethnic joke. D. Barnum statement. I looked up each answer and

    asked by Pat
  20. M@them@tcs

    on @ Gp.the 4th term exceed 3rd term by 72 nd 3rd term exceeds 2nd term by 24.fnd the frst four term of the progressn.

    asked by Muhmmed sheu
  21. Biology

    Which features are common to all cells? Check all that apply. All cells have cytoskeleton lysosomes vacuoles the cytoplasm flagella and fimbriae photosynthetic membranes the plasma membrane ribosomes the cell wall genetic information (DNA) in chromosomes

    asked by Anonymous
  22. Calculus

    The measurement of the side of a square is found to be 12 cm with a possible error of 0.05 cm. Use differentials to estimate the propagated error ΔA in computing the area of the square. Please do not include the ± symbol in your answer. Round your final

    asked by olga
  23. maths

    five years ago juhi was three times as old as amreen. 10 years later juhi would be twice as old as amreen. how old are they?

    asked by shehzad
  24. chemistry

    A mixture of carbon and sulfur has a mass of 9.0 g. Complete combustion with excess O2 gives 29.7 g of a mixture of CO2 and SO2.

    asked by Anonymous
  25. Physics

    Initially, a particle is moving at 4.00 m/s at an angle of 33.5 degrees above the horizontal. Two seconds later, its velocity is 6.45 m/s at an angle of 60.0 degrees below the horizontal. What was the particle's average acceleration during these 2.00

    asked by Hailey
  26. MATH

    How many squares of side 5 inches can be cut from a piece of cartolina 48 inches long and 36 inches wide. What area of the paper will be wasted?

    asked by ROLAN
  27. Chemistry

    A mixture of carbon and sulfur has a mass of 9.0 g. Complete combustion with excess O2 gives 29.7 g of a mixture of CO2 and SO2.Find the mass of sulfur in the original mixture.

    asked by Anonymous
  28. Chemistry

    Please check the following. 1. What compound is sodium sulfite? My answer:Na2SO3 2. Which element is a noble gas? a. N2 b. Cl2 c. Xe d. I2 My answer: c 3. Which element is most likely to form a cation with a 2+ charge? a. S b. P c. Be d. Al My answer: c 4.

    asked by Anonymous
  29. Physics

    A 72 kg skier leaves the end of a ski-jump ramp with a velocity of 24 m/s directed 25◦ above the horizontal. The skier returns to the ground at a point that is 14 m below the end of the ramp with a total speed of 22 m/s. (a) What is the rate at which the

    asked by Adam
  30. math

    Could someone please check my questions? My answers are under the questions... and any help will be greatly appreciated 33. Jane works at the public library after school. She makes $7.00 per hour. She cannot work more than 15 hours per week. If y = 7x

    asked by Abby
  31. maths

    in an AP the third term is equal to five times the sixth term. the second term is lesser by 3 than twice the fourth term. find the term of AP

    asked by vagdevi
  32. Chemistry

    Please check the following. 1. What compound is sodium sulfite? My answer:Na2SO3 2. Which element is a noble gas? a. N2 b. Cl2 c. Xe d. I2 My answer: c 3. Which element is most likely to form a cation with a 2+ charge? a. S b. P c. Be d. Al My answer: c 4.

    asked by Anonymous
  33. GGIS

    A vertical radio mast is supported by wires attached to its top and to points on the level ground 9m from its base. If each wire is 31m long m, find the height of the mast.

    asked by damilola
  34. algebra

    Using the rational zeros theorem to find all zeros of a polynomial The function below has at least one rational zero. Use this fact to find all zeros of the function h(x)=7x^4-9x^3-41x^2+13x+6 if more than one zero, separate with commas. Write exact

    asked by Pat
  35. Math

    please solve 30 is 2 less than____ 35 is more than 40 ____

    asked by Kankona Dubey
  36. Spanish

    Como mi madre no sabe hablar espanol yo (traducir) para ella cuando el hombre de Costa Rica nos (decir) las direcciones Traduci and dijeron?

    asked by Anonymous
  37. AP Chem (Thank you for help)

    Hey guys! Stuck on some Redox Reactions. I tried my best to put as much work as I could, but I'm super stuck on these ones. Thanks for any help: 1) Balance the equation as written, what is the coefficient for O2? NH4+ + O2-->NO2− + H2O (in basic

    asked by Allie
  38. chemistry

    ∆H of ★Ca(HCO3)2→CaCO3 + CO2 + H2O and ★Ca(HSO4)2→ CaSO4+ SO2 + H2O???

    asked by Mohammad Seyam
  39. Science

    A block of mass m is placed on a triangular block of mass M Which in turn Placed on a horizontal frictionless Surface find the velocity of the triangular block when the smaller block reaches the bottom end

    asked by Shubhrajeet Mondal
  40. Chemistry

    A student dissolved 1.62 g of calcium bicarbonate into 500. mL of water. Excess amount of hydrobromic acid was then added to the solution until bubbling stopped. At STP, what approximate volume (in L) of the gaseous compound would be produced in this

    asked by May
  41. business law

    Frank was invited to a party at a friend’s home to watch the Super Bowl (football game). He was so disgusted with the way his team was playing that he offered to sell the first person who gave him a $1, his rare team jacket worth about $800. Jeff gave

    asked by shawn
  42. calculus

    solve the differential equation that satisfies the given condition: dy/dx=(ycos(x))/(6+y^2), y(0)=1

    asked by Lauren
  43. chemistry

    Use a balanced redox equation to answer the following question. 71.7 mL of 1.13 x 10-4 mol L-1 potassium ferricyanide solution is required to react completely with 43.9 mL of ascorbic acid solution (under acidic conditions). What is the concentration of

    asked by hm
  44. Multi Cultural Psychology

    A friend reasons that because (according to his assumption) all Asians like spicy food, his Korean neighbor must like it as well. What cognitive strategy did he use when estimating this probability? A. Representatives B. Heuristic C. Schemas D. Continuous

    asked by Pat
  45. Spanish

    Ellos (traer) la pintura a su casa y todos le (dar) a ella una carta bonita. Trajeron and dio?

    asked by Anonymous
  46. history

    in both the french and indian war and the american revolutionary war, european countries fought for control of north america. what was the main difference between these two wars?

    asked by pls help
  47. math

    Is Increasing the Venture Orientation of a Firm always a Good Thing? Or are there Circumstances or Environments in which the further pursuit of Opportunities can diminish Firm Performance?

    asked by mae
  48. Physics

    A 2.9 kg brick has a kinetic coefficient of friction of 0.33. what force must be applied to the brick for it to move at a constant velocity? Show work

    asked by hamza
  49. Spanish

    Quien (poner) mis libros en el piso? Pusieron?

    asked by Anonymous
  50. Algebra 2

    Does this verbal phrase translate into the algebraic expression correctly? Five more than a number divided by four x/4+5

    asked by Joan
  51. maths

    ali's father was five times as old as Ali 7 1/2 years ago.After 7 1/2 years father will be twice as old as ALI .what are their present ages?

    asked by atish patel
  52. physics heat flow problems.

    b. Two metallic rods A and B with similar length and cross sectional area are joined together and all curved surfaces are insulated. At steady state, the temperatures at their ends are shown in the figure below. The thermal conductivity of A is twice that

    asked by mais
  53. chemistry

    How can I collect carbon di-oxaide gas(CO2) from mixture of (SO2, CO, NO2, CO2) gases??

    asked by Mohammad Seyam
  54. Luhlaza high school

    A car is stationary at first it moves off with an acceleration of 2m.s Calculate how fast it will be moving after 10s

    asked by Aluncedo
  55. Chemistry- Dr. Bob

    Please check the following. 1. What compound is sodium sulfite? My answer:Na2SO3 2. Which element is a noble gas? a. N2 b. Cl2 c. Xe d. I2 My answer: c 3. Which element is most likely to form a cation with a 2+ charge? a. S b. P c. Be d. Al My answer: c 4.

    asked by Anonymous
  56. physics

    You are driving on a very long, very straight 2 lane road, stuck behind a lorry which travels at a constant 75 km/hour. You want to overtake the lorry, which has a length of 12.0 m. You car is 3.8 m long. To overtake the lorry, and to do this safely, you

    asked by Anonymous
  57. physics

    You are driving on a very long, very straight 2 lane road, stuck behind a lorry which travels at a constant 75 km/hour. You want to overtake the lorry, which has a length of 12.0 m. You car is 3.8 m long. To overtake the lorry, and to do this safely, you

    asked by Physics
  58. maths

    the ages of aryan and arjun are in the ratio 5:7 gour years later their ages will be in the ratio 3:4. find their ages

    asked by shehzad
  59. logarithm

    If log base 2 of x and log base 2 of y are distinct positive integers and log base x of 2 plus log base y of 2 equal to 0.5. xy=?

    asked by Julie
  60. Calculus

    Determine the linear approximation of 21/2. Express your answer as a reduced fraction in the form a/b.

    asked by olga
  61. Math (help)

    find the zeros of the function: f(x)=2x^4 -x^3 +7x^2 -4x -4 ...

    asked by Sophia
  62. business law

    The people of Alberta are tired of Canadians from other provinces taking their construction jobs and so the legislature of Alberta has enacted a law saying that from now on only people who have lived in Alberta for more than two years can get a job in the

    asked by anthony johnston
  63. Math

    Jonathan was born 6 years before william. In 2000, Jonathan's age was 2 years more than four times the age of william in 1995. How old will william be in 2020?

    asked by Anonymous
  64. Chemistry

    Convert: 10 cm = ? m Convert your answer to scientific notation.

    asked by Anonymous
  65. St Eugene university

    Solve x^2 times second derivative -3x times first derivative -5y =sin(logx) my solution is integrating both sides we have sinxlogx

    asked by Daniel
  66. Math

    A number is chosen at random from among all 5-digit numbers containing only the digits 1,2,3,4, and/or 5. Find the probability that the digits are all different.

    asked by Julie
  67. Calculus also need help plz plz plz

    If z=1/(x^2+y^2-1) is x(dz/dx)+y(dz/dy)=-2z(1+z) or -z^2(1+z) note:dz/dx=partial derivative of x and dz/dy=partial derivative of y??

    asked by Collins
  68. physics

    An astronaut was working on the exterior of her spaceship tightening a bolt with her wrench. The astronaut and a spaceship both experience weightlessness and become separated from each other. Suggest a way in which the astronaut can use her knowledge of

    asked by Mike
  69. math

    Solve the problem. Make sure your answer is in simplest form and improper fractions are expressed as mixed numbers. A.6/12 B.6/35 C.7/35 D.7/30

    asked by diego
  70. Physics

    Ivan rides his motorcycle 4.5 times around a circular track that has a radius of 100 m a)what is the distance traveled and b)what is the displacement?

    asked by Isha
  71. Biology

    What holds nitrogen bases together in a Double Helix? (DNA)

    asked by Anonymous
  72. Calculus

    Which of the following is the linear approximation formula, L(x), that estimates values of y = ln(x) + 1 for values of x near 1? a) y = x - 1 b)y = x c)y = x + 1 d)y = -x

    asked by olga
  73. Calculus

    The function defined below satisfies Rolle's Theorem on the given interval. Find the value of c in the interval (-3, -2) where f'(c)=0. f(x) = x + 6x-1 , [-3, -2] Round your answer to two decimal places.

    asked by olga
  74. algebra

    Using the rational zeros theorem to find all zeros of a polynomial The function below has at least one rational zero. Use this fact to find all zeros of the function g(x)=5x©ù-28©ø-48x©÷-8x+7 if more than one zero, separate with commas. Write exact

    asked by Pat
  75. History

    Does anyone know what impact has gothic architecture had on modern architecture?

    asked by David
  76. business law

    Gina and Jules were shopping together when they decided to buy lottery tickets. Each bought one ticket and agreed that if either won, they would split the winnings. Two days later, Gina discovered that she had won. She refused to share with Jules. 2 of 2

    asked by brett
  77. physics

    a car accelerating from reast at 2m/s2 for 5s?..

    asked by ibrahim
  78. english

    what is the meaning of the phrases frightened the life out,got down on hands and knees and stuck his nose in the air

    asked by muhammad
  79. Algebra 2

    I am stuck on this problem that I have tried to solve so many times! The question is:The length of a rectangle is four more than twice the width. If the perimeter of the rectangle is 32 cm, what are the length and width of the rectangle? Here is my work:

    asked by Mick
  80. science

    For the monatonic gas in #3,estimate the momentum of the gas for a particle mass of 3x10^-4g

    asked by gift
  81. English

    Which of the following uses imagery The wolf is three years old It is now late in the afternoon His ears are rammed forward stiff** It is not a time of year for much howling Pls help

    asked by Bubbles
  82. maths

    10 scores have a mean of 85.4, but one was enetered at 75 when it should have been 57 what is the new mean?

    asked by diane
  83. Health science

    Make lists of factors that makes your lives stressful and explain how each impacts your physical health and fitness. Please help I'm confused

    asked by Sara
  84. math mtap

    what is the solution of 60cm by 48cm.the answer is 20

    asked by conan
  85. English

    how is the movie beauty and the beast artistic expression

    asked by Yasmine
  86. Math

    What is 2/7 divided by 5/6 in simplest form?

    asked by gavin
  87. math

    Each sheet of metal is 2.9 centimeters thick. If Mary stacks 20 sheets on top of each other, how thick will the stack be? 2.9/ 20=.145

    asked by haya
  88. Math

    Write the word sentence as an equation. The product of a number n and 2 is 2.

    asked by gavin
  89. maths

    after 20 years i will be 5 times as old as i was 8 years ago. what is my present?

    asked by shehzad
  90. english

    Why are all the school bus yellow? A) schools B) busses

    asked by dondi
  91. English Writing parts of speech

    Why are all the school bus yellow? A) schools B) busses

    asked by dondi
  92. Math

    2 is less than 30 5 more than 35 is

    asked by Kankona Dubey
  93. Math

    30 is 2 less than 45 is 9 more than

    asked by Kankona Dubey
  94. Calculus badly need help so difficult

    If y=ws^3/d^4 find the percent increase in y when w increase by 2% s decrease by 3% and s decrease by 1% plz show the full solution the question is byond my power

    asked by Collins
  95. Sports Finance

    I have to develop the year one operating budget of a new NHL Arena that costs $170 million. Also, I will have to complete a year one through five revenue and expense profit/loss forecast. What do I include in both of this budgets? Any examples that might

    asked by Hagazaki
  96. Spanish

    whats the difference between stem changing in the present tense and the preterite

    asked by Anonymous
  97. Biology

    What are the four nitrogen bases of a DNA nucleotide

    asked by Anonymous
  98. Biology

    What are three sub unites or parts of a nucleotide

    asked by Anonymous
  99. Biology

    What do Nucleotide Chains create

    asked by Anonymous
  100. Calculus

    The function defined below satisfies the Mean Value Theorem on the given interval. Find the value of c in the interval (1, 2) where f'(c)=(f(b) - f(a))/(b - a). f(x) = 1.5x-1 + 1.1 , [1, 2] Round your answer to two decimal places.

    asked by olga
  101. Calculus

    The function defined below satisfies Rolle's Theorem on the given interval. Find the value of c in the interval (0,1) where f'(c)=0. f(x) = x3 - 2x2 + x, [0, 1] Round your answer to two decimal places.

    asked by olga
  102. Math (sequence)

    A sequence is generated where is term is equal to the sum of to preceding terms. If the first 2 terms are 1 and 2, what is the fifth term? Please explain the logic.

    asked by ER
  103. Spanish

    Qué te (pedir) tu papá que hicieras? Pediste or Pidio?

    asked by Anonymous
  104. Algebra 2

    Did I translate this verbal phrase into an algebraic expression correctly? The product of a number and fifty-five 55x

    asked by Jasmine
  105. Algebra 2

    Did I translate this verbal phrase into an algebraic equation correctly? The quotient of ten less than a number and 8 (x-10)/8

    asked by Jas
  106. chemistry

    is that a -56? Dr. BOb. thank you When 27.20mL of .5 M H2SO4 is added to 27.20 of 1M KOH in a coffee cup calorimeter at 23.5 degrees C, the temp rises to 30.17 degrees C. Calculate delta H of this reaction. (Assume that the total volume is the sum of the

    asked by patrick
  107. Spanish

    Whats the difference between stem changing in the present tense and the preterite?

    asked by Anonymous
  108. Algebra 2

    So I solved this problem but, strange as it sounds, I don't know how to do the work. Here's the question: One number is eight less than another number. The sum of the numbers is eighty. Find both numbers. Here's what I've got: y-8=x x+y=80 x=36 y=44 I

    asked by Louis
  109. Chemistry

    What is the name of CrS subscript 3? Chromium (III) Sulfide? But S has a -2 charge... -2(3)=-6 Cancellation of the charge need to occur. I don't understand this.

    asked by Anonymous