# Questions Asked onOctober 17, 2015

1. ## HELP CALCULUS

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

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)

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)}

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

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

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?

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

8. ## Algebra 2

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

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

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

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?

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

13. ## Math

Find the area of the parallelogram. 13 times 8

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

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

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

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

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

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

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.

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

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

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?

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.

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

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?

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.

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.

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

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

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

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.

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.

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

35. ## Math

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

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?

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

38. ## chemistry

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

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

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

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

42. ## calculus

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

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

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

45. ## Spanish

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

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?

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?

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

49. ## Spanish

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

50. ## Algebra 2

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

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?

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

53. ## chemistry

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

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

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.

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

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

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

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=?

60. ## Calculus

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

61. ## Math (help)

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

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

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?

64. ## Chemistry

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

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

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.

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??

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

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

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?

71. ## Biology

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

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

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.

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

75. ## History

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

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

77. ## physics

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

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

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:

80. ## science

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

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

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?

84. ## math mtap

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

85. ## English

how is the movie beauty and the beast artistic expression

86. ## Math

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

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

88. ## Math

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

89. ## maths

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

90. ## english

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

91. ## English Writing parts of speech

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

92. ## Math

2 is less than 30 5 more than 35 is

93. ## Math

30 is 2 less than 45 is 9 more than

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

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

96. ## Spanish

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

97. ## Biology

What are the four nitrogen bases of a DNA nucleotide

98. ## Biology

What are three sub unites or parts of a nucleotide

99. ## Biology

What do Nucleotide Chains create

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.

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.

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.

103. ## Spanish

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

104. ## Algebra 2

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

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

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

107. ## Spanish

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