1. math

Sue is two years older than Chris. Jim is 4 years older than Sue. Their ages total 68. How old is Sue?

2. MGF 1106

Four accounting majors, two economics majors, and three marketing majors have interviewed for five different managerial positions with a large company. Find the number of different ways that five of these people could be hired if the first two positions

3. Algebra

A toy rocket that is shot in the air with an upward velocity of 48 feet per second can be modeled by the function f(t)=-16t^2+48t , where t is the time in seconds since the rocket was shot and f(t) is the rocket’s height. What is the maximum height the

4. chemistry

The equilibrium constant of the reaction CH3COOH (l)+C2H5OH (l)=CH3COOC2H5+H2O is 4.if one mole of each of acetic acid and ethyl alcohol are heated in presence of little concentrated H2SO4 at equilibrium the amount of ester present is?

5. Algebra

Myra uses an inverse variation function to model the data for the ordered pairs below. (2, 30), (3, 20), (4, 15), (5, 12), (6, 10) Which statement best explains whether an inverse variation function is the best model for the data? An inverse function is

6. algebra

Tasha invests \$5,000 annually at 6% and \$5,000 annually at 8%. Thomas invests \$10,000 annually at 7%. Which statement accurately compares the two investments if interest is compounded annually?

7. phys

The coefficient of expansion of a certain steel is 0.000012 per C^(degree) . The coefficient of volume expansion, in (C^(degree))^-1, is: A) (0.000012)^3 B) (4pi/3)(0.000012)^3 C) 3 x 0.000012 D) 0.000012

8. PHYSICS

a locomotive pulls 10 identical freight cars. the force between the locomotive and the first car is 100,000 Newtons, and the acceleration of the train is 2m/s^2. there is no friction to consider.what is the force between the ninth and tenth cars?

9. Physics

Suppose that a disk rotates through two revolutions in 5.5 seconds. (a) What is its displacement in radians in this time? (b) What is its average rotational velocity in rad/s?

10. Physics

Consider two cases in which the same ball is thrown against a wall with the same initial velocity. In case A, the ball sticks to the wall and does not bounce.In Case B, the ball bounces back with the same speed that it came with. A.)In which of the two

11. Chemistry

If a solution of formic acid contains 0.2 M HCHO2, 0.006 M CHO2-, and 0.006 M H+, What is the Ka of the acid? What is the ph of the solution at the concentrations given? What would happen to the equilibrium position if more CHO2- were added to the

12. Physics

A force of 32 N is applied at the end of a wrench handle that is 27 cm long. The force is applied in a direction perpendicular to the handle as in the diagram. (a) What is the torque applied to the nut by the wrench? (b) What would the torque be if the

13. chemistry

Calculate the value of q for each of the experiments listed below. (Assume the heat capacity of water is 4.1801 J/g*C). Exp1: 2.48g of an unknown salt added to 160. mL of water resulted in a change of temperature of -0.1 C. Exp2: 2.48g of an unknown salt

14. Algebra

Jordan uses a linear equation to model the data in a table. Which reasoning might Jordan have used in the decision to model the data with a linear equation? The products of corresponding x- and y-values are equal. The ratios of consecutive y-values are

15. Physics

A weight of 31 N is located a distance of 10.8 cm from the fulcrum of a simple balance beam. At what distance from the fulcrum should a weight of 17 N be placed on the opposite side in order to balance the system?

16. Algebra

Combine like terms and classify the polynomial by the number of terms. 7x + 3x – x Is monomial correct?

17. physics

A light, inextensible cord passes over a light, frictionless pulley with a radius of 11 cm. It has a(n) 14 kg mass on the left and a(n) 4.3 kg mass on the right, both hanging freely. Initially their center of masses are a vertical distance 2.1 m apart. The

18. Physics

The rotational velocity of a merry-go-round increases at a constant rate from 1 rad/s to 2.1 rad/s in a time of 5.8 s. What is the rotational acceleration of the merry-go-round?

19. Managerial Economics

HoneyBee Farms, a medium-size producer of honey, operates in a market that fits the competitive market definition relatively well. However, honey farmers are assisted by support prices above the price that would prevail in the absence of controls. The

20. Spanish

Hey, i just wanted to know if i got the questions right? Thanks Choose the sentence in which the verb, shown in quotation marks, is grammatically correct. A. El principe no "está" en casa. ➭B. ¿Dónde "es" Maria? C. Ella "está" de México. Choose the

21. math

If a b c are non zero,unequal rational numbers then prove that the roots of the eqn (abc²) x²+ 3a²cx+b²cx-6a²-ab+2b²=0 are rational.

22. Physics

An acrobat is launched from a cannon at an angle of 60 degrees above the horizontal. The acrobat is caught by a safety net mounted horizontally at the height from which he was initially launched. Suppose the acrobat is launched at a speed of 26 m/s a) how

23. english

What is Bronte's main purpose in describing Jane's meals and activities at Lowood? A)to show how all schools operate B) to show the discomforts she endures at Lowood C) to show the interesting aspects of Jane's life at Lowood D) to show how students

24. POL Week 4. Answer check

Question 1.1. The Judiciary Act of 1789 established all of the following except that the Supreme Court would (Points : 1) *A) have one Chief Justice. B)have five associate justices. C)sit in two sessions each year. D)determine how many federal districts

25. Physics

Consider two cases in which the same ball is thrown against a wall with the same initial velocity. In case A, the ball sticks to the wall and does not bounce.In Case B, the ball bounces back with the same speed that it came with. a.) In which of the two

If refinishing your basement at a cost of \$44,568 would add \$18,520 to the resale value of your home, what percent of your cost is recouped? (Round to the nearest percent.)

27. geometry

ABCD is a rhombus with diagonals Imported Asset and Imported Asset . Is angle ABD congruent to angle CBD?

28. math

There are 60 coins in a box containing only nickels, dimes, and quarters. If there is one more than twice as many dimes as quarters, and the total value of all dimes is five cents less than the total value of all nickels, how many of each denomination are

29. Physics

A battery with an emf of 10.3 V and internal resistance of 1.03 Ω carries a positive current of 0.550 A from its negative terminal to its positive terminal. (a) How long is required for 1.05 C of charge to pass through the battery? t = Q/I = (1.05)/(.550)

30. internet basics

the social networking site that caters to artists and musicians is what

31. math

. Four tablespoons of extract are mixed with 240 ml of oral suspension base. What is the final concentration of the suspension?

32. Physics

An average force of 208 N acts for a time interval of 0.058 s on a golf ball. (a) What is the magnitude of the impulse acting on the golf ball? (b) What is the change in the golf ball's momentum?

33. Physics

A bowling ball has a mass of 7 kg and a speed of 1.73 m/s. A baseball has a mass of 0.12 kg and a speed of 25.1 m/s. Which ball has the larger momentum? a. The bowling ball. b. More information needed c. The baseball. d. Both have the same momentum

34. Physics

Two charge 10C and 5C but no radius. How can I determine Force?

35. statistics

A teacher wants to compare the mean geology scores of two different classes. She is testing the null hypothesis that there is no difference in the population mean scores of the two classes. The difference of the sample means is 51.4. If the standard

36. physic

a 2.00kg object A is connected with a massless string across a massless, frictionless pulley to a 3.00kg object B. the smaller object rests on an inclined plane which is tilted at an angle of theta=40degrees. what are the acceleration of the system and the

37. Electro 1

Two resistors Ra= 1.95 ohms and Rb = 0.05 ohms are connected in parallel and take a total of 50A. What is the current trough each resistor.

38. maths

If ax²+bx+c=0 and bx²+cx+a=0 have common root a,b,c are non zero real numbers, then find the value of a³+b³+c³/ abc

39. Physics

A bicycle wheel is accelerating at the constant rate of 1.4 rev/s2 (a) If it starts from rest, what is the rotational velocity after 4.7s? (b) Through how many revolutions does it turn in this time?

40. physics

A block of mass 2.95708 kg lies on a friction- less table, pulled by another mass 3.23123 kg under the influence of Earth’s gravity. The acceleration of gravity is 9.8 m/s2 . What is the magnitude of the tension T of the rope between the two masses?

41. Philosphy

Which of the following does Peter Singer assert about the principle of equality

42. math

17. Jenny, Greg, & Hank gather their marbles and have 20 in total. If Jenny has 3 less than twice the number Greg has, and Hank has 1 less than Greg has, how many marbles do each of them have?

44. american history

Under the _______ system, Spanish conquistadores were rewarded with local villages and control over the local labor force.

45. cc

You are offered two different sales jobs. The first company offers a straight commission of 9% of the sales. The second company offers a salary of \$ 260 per week plus 4% of the sales. How much would you have to sell in a week in order for the straight

46. Statistics

A group of 10 students have average of GPA of 2.8 with SD of 0.3. Does this group present enough evidence to indicate that the average GPA is less than 3.0? Make your decision at a 5% level of significance

47. Math/Statistics

A group of 10 students have average of GPA of 2.8 with SD of 0.3. Does this group present enough evidence to indicate that the average GPA is less than 3.0? Make your decision at a 5% level of significance.

48. chemistry

Balance by oxidation method the SO2 + MnO4+H2O --MnSO4+H2SO4+SO4(-2)

49. calculus

If C′(62) = 120 and R′(62) = 145, approximately how much profit is earned by item number 63?

50. Accounting

A restaurant has a beginning inventory for the month of 150 pounds of beef at \$2.70 per pound. In week 1 they use 125 pounds of beef and receive 175 pounds of beef into inventory at \$2.80 per pound. In week 2 they use 190 pounds of beef and receive 150

51. History- Confucius

Question 1 The title Analects best translates as “____.” poems dialogues sayings fables Question 2 Which of the following does not reflect Confucian values: Replacing old traditions with modern values Exploring wisdom within yourself rather than

52. calculus

f(t) = − 4 t2 − t− 6 Find the equation of the line tangent to the graph of f(t) at t = 8. Enter the equation of the tangent line here (in terms of the variable t):

53. Spanish

Our spanish class has been given a 1-minute speech to write up over the holidays, but our teacher hasn't provided us with any extra material we can use. I was wondering if you could give me sentence starters etc. to help me work on it. Here is the

54. phys

The heat capacity of object B is twice that of object A. Initially A is at 300 K and B is at 450 K. They are placed in thermal contact and the combination is isolated. The final temperature of both objects is: ans is 400 K how?

55. Physics

A force of 36.7 N acts on a ball for 0.3 sec. If the ball is initailly at rest (a) What is the impulse on the ball? (b) What is the final momentum of the ball?

56. Physics

A 60-kg front seat passenger is moving in a car initially with a speed of 18.4 m/s is brought to rest by an airbag in 0.6 sec. (a) What is the impulse acting on the passenger? (b) What is the average force acting on the passenger in this process?

57. Physics

A rifle with a mass of 1.84 kg fires a bullet with a mass of 4.5 g (0.0045 kg). The bullet moves with a muzzle velocity of 413 m/s after the rifle is fired. (a) What is the momentum of the bullet after the rifle is fired? (b) If external forces acting on

58. Math

If you purchase a fishing boat for 18 monthly payments of \$106 and an interest charge of \$238, how much is the refund after 10 payments

59. math

use a ruler and a pair of compass construct a triangle 6cm 5cm 7cm and the degree 45

60. statistics

As a marketing promotion a company is going to give the first 200 customers a coupon for a discount when they enter the store. The customer cannot scratch off the coupon until they check out. the company orders 200 coupons and 150 are for 5% off, 30 are

61. college physics 2

steel train rails are placed end to end with space in between on a day where a temperature is 30 degrees. How much stress will be build if the temperature is increase to 150 degrees .assume that the original is 1.5m

62. Math

In interviewing November's statement she notices that her beginning balance was \$600 and that she made a \$200 payment on November 10. She also charged purchases of \$80 on November, 5, \$100 on November 15, and \$50 on November 30. She paid \$5.27 in interest

63. Algebra

The height of an object after it is released can be modeled by the function f(t)=-16t^2+vt+s, where t is the n? The height of an object after it is released can be modeled by the function f(t)=-16t^2+vt+s, where t is the number of seconds after the object

64. Math

a party of people go for an excursion in x cars, of which y cars each hold 4 people and the remainder 5. How many people were their in the party

65. Math

Find the monthly payment. Mortgage amount Annual percentage rate 2. \$146,800 5.25% 30 years 4. \$113,400 5% 15 years 6. Find the interest paid the mortgage in exercise 2. 8. Find the total interest paid for the mortgage in exercise 4.

66. Algebra

Give the degree and classify the polynomial by the number of terms. A. degree: 2; trinomial B. degree: 3; binomial C. degree: 3; trinomial D. degree: 2; binomial Is B correct?

67. Physics

A railroad car with a mass of 12400 kg collides and couples with a second car of mass 18700 kg that is initially at rest. The first car is moving with a speed of 7.7 m/s prior to the collision. (a) What is the initial momentum of the first car? (b) If

68. Math

Consider the general quadratic equation ax^2 + bx + c = 0, where a is not equal to 0. Solve for x by completing the square.

69. Physics

Four railroad cars, all with the same mass of 11300 kg, sit on a track, as shown in the figure below. A fifth car of identical mass approaches them with a velocity of 19.3 m/s (to the right). This car collides and couples with the other cars. (a) What is

70. Geometry

What are the properties of equiangular octagons?

71. CHEMISTRY

We have this following gas equilibrium : H2 + Cl2 2HCl + 184 kJ then predict the following to know Le chatlier's prediction 1) adding Cl2 2) removing HCl 3) elevation of pressure 4) lowering of the temperature 5) removing H2 and lowering pressure 6) adding

72. CHEMISTRY

Which conditions ( reactant concentration , pressure , and temperature ) elevate high concentration of the underlines in these following equilibrium systems : 1) 2CO + O2 2CO2 + 167 kJ 2) Cu^+2 + 4NH3 [ Cu(NH3)4 ]^+2 + 24 kJ 3) 2HI + 12.6 kJ H2 + I2 4)

73. Physics

In a binary star system in which 2 stars orbit each other about their centre of mass, the mass of one star is 20m while the other star is m. In another binary star system, the masses of the star are 14m and m. The fixed distance between the stars in the

74. Math

Encircle the error in the following "proof" that the two arbitrary numbers are equal to each other. Let a and b the arbitrary numbers such that a is not equal to b. Then, (a - b)^2 = a^2 - 2ab + b^2 = b^2 - 2ab + a^2 (a - b)^2 = (b - a)^2 a - b = b - a 2a

75. chemistry solution preparations

how can we prepare 0.5 n solution of hcl as we have 37% hcl and 0.1n hcl. and we want to make 0.5n hcl from 0.1n hcl by pouring 37% hcl?

76. general chem

what is the mass percent of sodium hydroxide in a solution that is made by dissolving 8 grams of sodium hydroxide in 50 grams of h2o answer

77. Electro 1

A 6 ohms load is connected to a 119.6volts source through a pair of 0.25 ohms conductors. calculate a) the load current and voltage. b) the voltage drop in the wires.

78. Science

What is the mass percent of sodium hydroxide in a solution that is made by dissolving 8grams of sodium hydroxide in 50 grams of H2O?

79. Science

A solution is prepared by dissolving 15grams of table salt in 70grams of water. Find (a) mass percent of solute (b) mass percent of solvent.

80. Science

How many grams of sucrose are dissolved in 400 grams of a 12% ogueaus solution of sucrose?

81. Science

80ml of methyl alcohol water are mixed to give a solution that has a final volume of 154ml. What is the concentration of the solution expressed as percent by volume methyl alcohol?

82. Science

A solution made up of 20ml of mythl alcohol and 50ml of water. What is the volume percent of ethyl alcohol in solution.

83. Science

by volume ogueous hydroloric acid solution,

84. chemistry

4g NaOH is dissolved in 100mL of 2.5M H2SO4 will be required for its complete neutralization?

85. Math

If the largest two-digit number is added to 200, what is the sum?

86. English Essay Part 2

Background Your favorite cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You know she plans to apply at similar stores in your town. But you also know she

87. Math

Add a term to b^2 - 4/5b to make the expression a perfect square. Write the results as the square of a bracketed expression.

88. Science

how many ml of water are present in 250ml of a 15% by volume oguous hydrocloric acid solution?

89. chemistry

The equilibrium constant of the reaction CH3COOH (l)+C2H5OH (l)=CH3COOC2H5+H2O is 4.if one mole of each of acetic acid and ethyl alcohol are heated in presence of little concentrated H2SO4 at equilibrium the amount of ester present is?

90. Environmental Science

Using two or three well-developed paragraphs, describe how energy is transferred from the sun to producers and on to consumers. Provide at least one example.

91. Environmental Science

Using two or three well-developed paragraphs, explain how temperature and precipitation determine which plants grow within an area and give an example.

92. math

In a bag,there are 18 cards of which x cards are coloured and the rest are white.When another 6 white cards are added into the bag,the probability of a white card being picked is x over 8.Find the value of x. Answer:6 How?

93. CHEMISTRY

If 2.5 * 10^-2 g of Fe(NO3)3 added to 100mL of 1.0 * 10^-4 M NaOH solution , will it produce precipitate ? thank you

94. CHEMISTRY

Does it produce precipitate if 1.7 g of AgNO3 and 14.5 g of NaCl solvated in 200 mL water to get a solution in 25 oC ? thank you

95. Riddle

your driving a bus. at the first stop you pick up 10 people then you pick up 789 people and on the right you drop off 453 so what is the bus drivers name?

96. maths

If x²+px+q=0 and x²+qx+p=0,(p not =to q) have a common root. Show that 1+p+q=0; show that their other roots are the roots of the eqn x²+x+pq=0.

97. maths

If one of the roots of the eqn ax²+bx+c=0 be reciprocal of one of the roots of a1x²+b1x+c1=0 then prove that (a a1-c c1)²=(b c1-a b1)(b1 c- a1 b)

98. math

Find the value of 'a' so that x²-11x+a=0 and x²-14x+2a=0 have a common root.

99. math

There are 25 red beads,x blue beads and y green beads in a box.When a bead is picked at random,the probability that it is blue is 1 over 4 and the probability that it is green is 1 over 3. (a)Find the value of x and y. (b)How many blue beads must be added

100. math

If p,q,r,s belongs to R and pr=2(q+s) then show that atleast one of the eqn x²+px+q=0,x²+rx+s=0 has real roots.

101. chemistry

a concrete block is heated from by 30 degree C to 50 degree C. The mass of the block is 10kg. Specific heat of concrete is 800J/Kg degree Celcius. Calculate the energy transferred.

102. math

A patient needs 45% dextrose 100ml The pharmacy has only 70% dextrose 500ml. a) how much concentrate will you need b) how much diluent

103. American Literature

1. Discuss, in “Sinners in the Hands of an Angry God,” Edwards’ description of God’s wrath and Edwards’ use of the metaphors of storm and thunder, flood and fire.

104. math

the population of Erik's school increased by 5% from last year to this year. This year, there were 15 more students in his school than last year. How many students were in Erik's school last year?

105. math

you have mixed 25g of 2%crem into 35g of 6% cream. What is the resulting concentration?

106. math

you have mixed equal parts of a 10 % and a 2,5 % benzocaine ointment what is the resulting concentration?

107. english

Write a story in about 150-200 words based on the following clues : Jayanti -fond of singing -a sweet voice very talented - got a golden chance - audition call - excited- Granny superstitious- black cat crossed the road - Granny made her wait - got late-

108. Math

what is the future value of 500 deposits at the end of each year for eight years 8% compounded annually what is the annuity at the end of eight years

109. Physics

Four railroad cars, all with the same mass of 11300 kg, sit on a track, as shown in the figure below. A fifth car of identical mass approaches them with a velocity of 19.3 m/s (to the right). This car collides and couples with the other cars. (a) What is

110. Physics

Four railroad cars, all with the same mass of 11300 kg, sit on a track, as shown in the figure below. A fifth car of identical mass approaches them with a velocity of 19.3 m/s (to the right). This car collides and couples with the other cars. (a) What is

111. statistics

Could someone let me know if I did this correctly? Source Sum of Squares (degrees of freedom [df]) Mean Square Fobt. Fcrit. Gender 68.15 1.07 68.15/63.685 0.59 1.07,1,2 Marital Status 127.37 3.04 63.685/20.95 0.75 3.04,2,2 Gender * Marital Status (A x B)

112. physics

Two parallel wires both carry currents directed from left to right .A circular wire loop lies in the plane of the two wires, mid-way between them.As always, assume the currents are positive charges. Sketch the changes in magnetic fields induced and the

Suppose 1.5 percent of the antennas on new Nokia cell phones are defective. For a random sample of 200 antennas, find the probability that: (Use the poisson approximation to the binomial.)

114. US Government

courts issued court orders, or i-j--cti--, to make sure that people of color were allowed to vote

115. chemistry

2HCl + Mg ---> H2 + MgCl2 How can I differ what is what? 2HCL= Mg = --- H2 = MgC12 =

116. chemistry

What are the consequences of using only a very dilute solution of HCl or a very concentrated solution of HCl in attempting to return the pH? in attempting to return the pH to 7? What is a better alternative?

117. Law

1. What requirement is imposed under Megan’s Law? A. Sex offenders must inform local law enforcement of their location and nature of their prior conviction. B. Each jurisdiction must create a local, multi-tiered sex offender registry. C. The felony

118. Law

Which of the following is NOT a reason for the soaring prison population in the U.S.? A. Expansion and increased efficiency of law enforcement B. Increase in the population at risk C. War on drugs D. Increased rate of nonviolent offenses is it B