1. Operations Management

Joe Henry's machine shop uses 2,500 brackets during the course of a year. These brackets are purchased from a supplier 90 miles away. the following information is known about the brackets. annual demand 2,500 holding cost per bracket per year \$1.50 order

2. phy

An archer shoots an arrow horizontally at a target 14 m away. The arrow is aimed directly at the center of the target, but it hits 52 cm lower. 1-What was the initial speed of the arrow? ** is this the formula for finding t : y=h-1/2(gt^2)=

3. Chem

a blue solution of copper(II) sulfate is mixed with a colerless solution of sodium phosphate and a blue percipitate is formed. Using solubility rules predict the formula of the percipitate

4. chemistry

For the reaction Ba(OH)2+2HCLO3 -> Ba(CIO3)2+2H2O calculate the no. of mole of H2O formed .when .01 mole of Ba(OH)2 is treated with 0.0250 moles of HCLO3

5. Statistics

According to a study several years ago by the Personal Communications Industry Association, the average wireless phone user earns \$62,600 per year. Suppose a researcher believes that the average annual earnings of a wireless phone user are now higher and

6. physics

two air carts of mass m1=0.84kg and m2=0.42kg are placed on a frictionless track. cart1 is at rest and has a spring bumper of constant force F=690N/m.cart2 has a metal bumper and moves towards cart1 with a speed V=0.68m/s. A) what is the speed of the two

7. Chemistry

The following standard free energies are given for 25 degrees celcius. 1) N2(g) + 3H2(g)-> 2NH3(g) delta g = -33.0 kJ 2) 4NH3(g) + 5O2(g)-> 4NO(g) + 6H20() delta g = -1010.5 kJ 3) N2(g) + o2(g)-> 2NO(g) delta g = 173.1kJ 4) N2(g) + 2O2(g) -> 2NO2(g) delta

8. chemistry

>I have been trying to run some very simple structures to ensure that NBO is installed properly for my Firefly program (and to get familiar with using it). Trying to use acetaldehyde and DMSO as simple test cases I seem to be getting some errors that state

9. MATH

A CAR TRAVELS 432 KM ON 48 LITERS OF PETROL . HOW FAR WOULD IT TRAVEL ON 28 LITERS OF PETROL ONLINE SOULATION

10. Geography

How do you think the existence of nearly 3,000 ethnic groups and 800 languages affect life in countries south of the Sahara? The countries south of the Sahara show more diversity and variety of culture than anywhere in the world. This region speaks more

11. sci 207

The idea of tectonic plates shifting across the earth’s surface is central to explanations of geologic processes. Why is this idea still called the “theory” of plate tectonic movement

12. Geography

How has the Suez Canal been a catalyst for nationalism in Egypt? When the Suez Canal Company was nationalized on July 26, 1956 by Egypt's president, Gamal Abdel Nasser, he became a hero. He remains an iconic figure in the eye of many people in the Arab

13. geometry

In rectangle ABCD, if the coordinates of A are (0, 0) and the coordinates of C are (r, s), find the coordinates of B.With A and D being on the bottom line and B and C on the top with B over A.

14. physics 3U

An arrow is accelerated for a displacement of 75cm [fwd] while it is on the bow. If the arrow leaves the bow at a velocity of 75m/s [fwd], what is the average acceleration while on the bow?

15. MATH

A CAR TRAVELS 432 KM ON 48 LITERS OF PETROL . HOW FAR WOULD IT TRAVEL ON 28 LITERS OF PETROL

16. chemistry

when 400g of a 20% sol. by weight was cooled ,50g of solute percipited .the percentage concentration of remaining solution

17. geometry

"Triangle DEF is similar to triangle ABC, and the length of side DE is 6 cm. The length of side AB is 2 cm. If the area of triangle ABC is 5 square cm, what is the area of triangle DEF?

18. English

Circle the direct objects and underline the indirect objects in the following sentences: 1.My Aunt Ruth collects cookie jars. 2.Last year, I gave her a cookie jar for her birthday. 3.She served us a tasty meal afterwards. 4.I have just bought her another

19. chemistry

Ammonia gas is passed into water ,yielding a solution of density 0.93 g/cm^3 and containing 18.6% NH3 by wieght .The mass of NH3 per cc of the solution is?

20. algebra

The sum of the angles of a triangle is 180 degrees. If one angle measures x degrees, a second angle measures 3x degrees, and a third angle measures 7x degrees, express the measure of the fourth angle in terms of x.

21. Physics

At what angle is an object launched if its initial vertical speed is 3.75 m/s and its initial horizontal speed is 4.50 m/s?

22. trig

1=2pi times the square root of (L/9.8)

23. Math(Pre=Calc)

The first term in a sequence of number is t1 = 4. The terms that follow are defined by the formula: tn - tn-1 = 3n -2. Determine the value of t50.

24. Physics

1. Water with a mass of 2kg is held at constant volume in a pressure cooker. 10,000 J of energy is added from the heater inside the pressure cooker. The container is not terribly well insulated, so the container leaks 2000 J of energy to the surrounding

25. Resources For Educating Young Children, Part 1

I know that I asked you about question 3 but I changed my mind 3. Which one of the following is true regarding group activities? a) Its not necessary for each child to participate b) a role should be planned for each child in the activity c) activities

26. math

a salesperson ears a salary of 17,000 per year. she also makes a commission of 14% on her saes. if her sales for the year total \$120,000, how much money was she paid for the year?

27. Algebra II

Give the equations of any vertical asymptotes for the graphs of the rational functions. f(x)=(3x³+6x-6)/(x²+3x-10)

28. Internet- Virtual Communities

I need help on explaining how cyber bullying relates to virtual communities for a paper that I need to write.

29. Physics

Find the magnetic flux through a circular loop 6.0 cm in diameter oriented with the loop normal at 50 degrees to a uniform 60 mT magnetic field.

30. Math

2. Your firm is considering two projects: Project A and Project B with the following cash flows: A YEAR B YEAR -\$75 0 -\$60 0 \$15 1 \$20 1 \$33 2 \$13 2 \$44 3 \$15 3 \$55 4 \$18 4 a. Calculate the NPVs based on WACCs of 5% and 7% b. What are the IRRs based on the

31. english/phonlogy

I need help in a project. I'm teaching a group of german students and I have noticed they say things like 'dis' and 'lai' instead of 'this' and 'lie'. I should identify the phonology problem and explain it precisely what it is. Please, can someone give me

32. solid mensuration

circle c has radius of 10 cm. each of the points B and D is on yhe midpoint of the radius. find the shaded area.

33. chem

What pressure (atm) is exerted by a column of ethanol 86.0 cm high. The density of ethanol is 0.789 g/cm3 and 9.8 m/s2 as your gravitational constant.

34. statistics

The average score on a standardized test is 500 points with a standard deviation of 50 points. If 2,000 students take the test at a local school, how many students do you expect to score between 450 and 550 points?

35. calculus 2

Express the given parametric curve by an equation in x and y, then sketch the curve. (a) x = 2 tan t, y = 3 sec2 t − 4, for −  2 < t <  2 . (b) x = 2et + 1, y = 3et + 2.

36. geometry

line xy bisect and is perpendicular to AB and CD. AB=6 and AP=5 what is the length of XY.?

Do you guys have a tutor that specialized in computer science? I would expect that you guys would but I just wanted to make sure. I was wondering if any of the tutors knows the MATLAB programing language?

38. physics

Q- The distance from A to B is l. A plane flies at constant speed v relative to air along straight line from A to B & then from B to A. Calculate total time taken for his round trip, if a wind is flowing in three directions of wind velocity (u)- I)along

39. how to make \$60 two ways using 3 coins

How do I make \$60 oly using 3coins in 2 ways?

40. grammar

Why do you need to use appropriate punctuation including plurals and progressives in writing

41. English

Could you please check these statements, please? Thank you very much. 1) When the monster comes to life, Victor is horrified by the monster's physical appearance. 2)His pearly white teeth and shiny black hair contrast with his dull, yellow eyes, shrivelled

42. English

Could you please check these few statements about the deportation/transportation of the Jews to concentration camps, please? 1) When did the persecution of the Jews (the Jewish people') begin? It began on April 1, 1993 when the Nazis organized a boycott of

43. Class 12th Application of Derivatives

Find a point on the parabola y = (x-4)^2, where the tangent is parallel to the chord joining (4,0) and (5,1). Solve this question using Lagrange's theorem. Answer is (9/2,1/4)

44. algebra

Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. 4x + 4y = -36 4x + 4y = 12

45. English

Could you please check these few other sentences? Thank you. 1) Can you refer to the most prominent episodes of the Second World War? 2) In what historical context did we mention the intervention of the Royal Force? Who was the Battle of England won by?

46. management of Institutional Risk

Describe the three types of organizational risk. Provide examples of each from your own organization. Which risk poses the greatest threat to your organization?

47. chem

What pressure (atm) is exerted by a column of ethanol 86.0 cm high. The density of ethanol is 0.789 g/cm3 and 9.8 m/s2 as your gravitational constant.

48. math 111c

how long will it take for \$2600 to grow to \$20,400 at an interest rate of 6.1% if the interest is compounded continuously?

49. CHEMISTRY LAB

determine Fe3+ in a solution that may be in the 0.0001 to 0.0005 M range.outline a spectrophotometric method that would accurately give the required data. be specific about the solutions that you would use.

50. Economics

Discuss the role of advertising in product differentiation and the intent of advertising in altering the firm’s demand curve

51. Algebra 2

Provide an appropraite response. If y varies inversly as the 4th power of x and y=3 when x=2, what is y when x=0.5? If Q varies inversly as the sqaure root of R and Q=2 whe R=4, what is Q when R is 25?

52. Algebra II

Give the equations of any horizontal asymptotes for the graphs of the rational functions. h(x)=(7x²-8x-5)/(8x²-3x+9) g(x)=(x²+4x-8)/(x-8)

53. algebra 2

Solve the problem. The profit made when t units are sold, t>, is given by P²-36t+320. Determine the number of units to be sold in order for P>0 (a profit is made). The future value of \$6000 invested for 5 years at rate r, compounded annually, is given by

54. algebra 2

Solve the problem. The profit made when t units are sold, t>, is given by P²-36t+320. Determine the number of units to be sold in order for P>0 (a profit is made). The future value of \$6000 invested for 5 years at rate r, compounded annually, is given by

56. Chemistry

If a liter of a buffer is prepared with a final concentration of .3M monosodium phosphate and .5M disodium phosphate, what is the pH of this buffer? (Hint: Which is conjugate acid (HA) and conjugate base (A-)? What's the pKa for this particular pair of HA

57. world history

why was the ice age a time of abundance

58. math

A 2005 Honda minivan can travel 240 miles in the city on 4 gallons of gas. Find the amount of gas required for 360 miles of city driving. (hint: use a proportion).

59. psy 240

are neurons there throughout your entire body or just in the brain?

60. help me Damon!! :)

Determine whether the pairs of sets are equal, equivalent, both, or neither. A = {7, 9, 10}, B = {a, b, c}

61. english

Could you check these sentences for me and see if this is correct. The pronouns are in bold. Thanks so much

62. economics

How does economy relate to social studies?

63. Geometry

M and N are the midpoints ofandrespectively. Using graph paper, repeat this process from the last problem using different coordinates for P, Q, and R. How do these lengths MN and PQ compare now? What do you think you can conclude about the lengths of these

64. sci 207

Geologists are responsible for identifying and mapping mineral resources. But mineral resources are buried below the soil and covered with vegetation. How do you suppose geologists in the field find clues about the distribution of rock types?

65. is Ms Sue there please?

Hi I have this other newspaper article and i have to summarise it. I have summarised it but i need to make it longer and there is a separate question where I have to state why it has become an issue using the article...please help: Dark Age May Envelope WA

66. childhood

what is the answer i just can't get it? A child's ________ is supported when a good fit exists between his or her needs and abilities and what the environment expect and provides. A. intelligence quotient B. adaptive C. capacity D. optimal development

67. Resources For Educating Young Children, Part 1

I was wondering if you could please help me My questions are 3. Which one of the following is true regarding group activities? a) Its not necessary for each child to participate b) a role should be planned for each child in the activity c) activities

68. Civics

_____ States supported the _____ Plan, which called for a bicameral legislature in which States would be represented according to their population. A. Slave, Three-Fifths B. Larger, Virginia C. Northern, Connecticut D. Smaller, New Jersey

69. Science

Find the length of an inclined plane that will reach a platform 8ft high and form 16degree with the ground

70. Strayer

What are the type of finance accounting sheets for proposals

71. accounting

What are some key elements of activity-based costing? I already know what activity-based costing is, I just do not understand what the key elements are.

72. geometry

What is the perimeter of the rhombus PQRS with RS=14 and height=10?

73. maths

what is the product of place value of 4 and face value of 2 in 949209

74. algebra

Determine whether 14 is a solution of the equation 6(x - 2)= 70

75. English

I forgot to include the following statements. Thank you for your help. 1)A Jewish council was established to regulate the internal life of the ghetto. 2)Jews were regularly sent to either a concentration camp or a death camp. After Kristallnacht the number

76. algebra

Solve by factoring: 10t^2 – t − 2 = 0

77. algebra

It is possible for a quadratic equation to have no real-number solutions. Solve. t^2+10t+26=0

78. m

=Add the complex expressions,and simplify. (4+7-9i)+(5+7-3i)

79. English

Can you please check grammar and punctuation mistakes? Thank you 1) When did the persecution of the Jews (the Jewish people) begin? It began on April 1, 1993, when the Nazis organized a boycott of all Jewish-run businesses. 2) When were the Nuremberg Laws

80. MATH

Determine whether the pairs of sets are equal, equivalent, both, or neither. A = {7, 9, 10}, B = {a, b, c}

81. help

hi wanted to know if you guys could help my friend.the only thing is he justs writes in spanish

82. English

Could you please check these other sentences on the same theme? Thank you. I tried to revise the punctuation myself. 1) A Jewish council was established to regulate the internal life of the ghetto. 2) Jews were regularly sent to either a concentration camp

83. maths

factorize the following. 1) 4x^2-2x+5=0 2) 6x^2+5x-4=0 3) x^2=3x 4) x(x-3)=-2 5) 4x^2+11x=-6

84. MATH

Please help me with this!! The first term in a sequence of number is t1 = 4. The terms that follow are defined by the formula: tn - tn-1 = 3n -2. Determine the value of t50.

85. Geometry

Use the diagram below for the following question. P(2,1), Q(11,1), and R(8,7) M and N are the midpoints ofandrespectively. Find MN and PQ. How do these lengths compare with each other?.

86. English

Hello. Please help me again. 1)I know it's possible to say "They entertained us to dinner", but is it possible to say "they entertained us to pizza" or "we were entertained to a cake"? 2)I asked a similar question, but if I change the structure, will I

87. algebra

Create a unique example of dividing a polynomial by a monomial and provide the simplified form. Explain, in complete sentences, the two ways used to simplify this expression and how you would check your quotient for accuracy. please explain :/ i only

88. management of Institutional Risk

How can organizations identify risk? Is one method more effective than another? Why or why not?

89. cal

USE INTEGRATION BY PARTS TO FIND EACH INTEGRAL ƪsquare rootx lnx dx

90. Geometry

What is Two capital letters printed in sequence

91. Health

Does prevalence of disease increase as chronic disease increases. Prevalence is total no. of cases/total no. of risk factors of disease in the population over a period of time.

92. physical

At what angle is an object launched if its initial vertical speed is 3.75 m/s and its initial horizontal speed is 4.50 m/s?

93. phi103

Truth tables can? display all the possible truth values involved with a set of sentences. determine what scientific claims are true. determine if inductive arguments are strong. determine if inductive arguments are weak

94. science

what is the velocity of a body moves from rest moves the distance of 10 m. and acceleration 2 m/s/s?

95. world history

Was there any presidents of the United States who faced trouble during their time as president?

97. Algebra II

Give the equations of any vertical asymptotes for the graphs of the rational functions. f(x)=(x-4)/(x²+7)

98. statistics

For each of the following samples that were given an experimental treatment, test whether these samples represent populations that are different from the general population (a) a sample of 10 with a mean of 44, (b) a sample of 1 with a mean of 48. The

99. grammar

When posting dates on a sign is it August 9-10 or August 9th - 10th?

100. arithematic sequence

Find the General term tn if t5=10 and t20=5

Let U = {0, 1, 2, 3, 4, 5,...}, A = {1, 2, 3, 4,...}, B = {4, 8, 12, 16,...}, and C = {2, 4, 6, 8,...}. Determine the following: A′ ∩ C

102. Math

Add the complex expressions,and simplify. (4+7-9i)+(5+7-3i)

103. CALCULUS

USE INTEGRATION BY PARTS TO FIND EACH INTEGRAL ƪxe^2x dx

104. CALCULUS

USE INTEGRATION BY PARTS TO FIND EACH INTEGRAL ƪx^5 Lnx dx

105. calculus

USE INTEGRATION BY PARTS TO FIND EACH INTEGRAL ƪãx lnx dx

Let U = {0, 1, 2, 3, 4, 5,...}, A = {1, 2, 3, 4,...}, B = {4, 8, 12, 16,...}, and C = {2, 4, 6, 8,...}. Determine the following: A′ ∩ C

107. Math

Short answer: simplify the following expression,and rewrite it in an equivalent form with positive exponents. (9x^-3)^3

108. physics

How many electrons does a 3.05 kg of water have?

109. English

Could you please check if everything is OK? Thank you. 1)Where does the world Holocaust originate and what do you associate it with? 2)George Best's parents recognized their son's love for football from an early age. 3) He started playing for the local

110. Math-can u help me bob pursley???? :)

Let U = {0, 1, 2, 3, 4, 5,...}, A = {1, 2, 3, 4,...}, B = {4, 8, 12, 16,...}, and C = {2, 4, 6, 8,...}. Determine the following: A′ ∩ C

111. trig

sin^2(3 theta+5pie)+cos^2(3 theta+5pie)= ?

112. geometry

B is the midpoint of A and C. If BC=3x2, and AC=54, find the value of x. Show all work

113. Math-Ms. Sue

Let U = {0, 1, 2, 3, 4, 5,...}, A = {1, 2, 3, 4,...}, B = {4, 8, 12, 16,...}, and C = {2, 4, 6, 8,...}. Determine the following: A′ ∩ C

114. Math

1. Bob’s Country Bunker (BCB), a chain of economically priced motels in the Midwestern United States has reviewed its current target structure of 40% debt and 60% equity. It can issue debt at a rate of 9%. The last dividend paid on its stock was \$1.25.

115. Law

I have to find key political words for this newspaper article so please check whehter the words i listed is right in the bottom and if there is anything i should add: Government contributes \$9m for soldier protection Published on Tue, 14/06/2011, 11:45:04

116. statistics

calculate the correlation for data set A. Data Set A: xi = 65, 55, 50, 45, 35 yi= 44, 52, 68, 20, 36 I know how to find the mean, variance, standard deviation, and z-score. The part I am having trouble finding is the ZxiZyi. In the chart that I have to

Let U = {0, 1, 2, 3, 4, 5,...}, A = {1, 2, 3, 4,...}, B = {4, 8, 12, 16,...}, and C = {2, 4, 6, 8,...}. Determine the following: A′ ∩ C

118. English

I forgot to include the following few sentences. Thank you. 1) Virginia Woolf abandoned the traditional technique of novel writing for a new, more modern form. 2) What did she turn to? She turned into an interior monologue* . In her need to shift back and

119. chemistry

calculate the pH of a 2.0 M solution of KCl.

120. Math

The first term in a sequence of number is t1 = 4. The terms that follow are defined by the formula: tn - tn-1 = 3n -2. Determine the value of t50.

121. programming

I'm an armateur!how do i write a program on my laptop?

122. math

simplify: c-d/d-c

123. Cal

USE INTEGRATION BY PARTS TO FIND EACH INTEGRAL ƪxe^2x dx

124. Database application

Define database elements: field, record, table

125. economics

What is the role of economic theory in the way economies are run today? I need some concrete examples.

126. Physics

Find the length of an inclined plane that will reach a platform 8ft high and form 16degree with the ground

127. math

How did math originate?

128. math

If a car is traveling at 55 mph in one direction, how long would it take to decelerate, turn around, and catch up with another car going at a steady speed of 100 mph in the opposite direction?

five secific events that can be expected to cause the equilibrium price of a good to increase?

130. science

how far you will move in 20 seconds if your acceleration at 2m/s/s?

131. science

how many seconds you will reached the distance of 200 m. if your acceleration at 2m/s/s?

133. Psychology

In what ways are personology and attribution theory related?

134. chemistry

i have aproblem in balancing equations

135. statistics

For a population that has a standard deviation of q0, figure the standard deviation of the distribution of means for samples of size-(a)2,(b)3,(c)4,(d)9.

136. English

could you review this for me and provide feedback. I have an assignment that states I need to write my thesis statement then write paragraphs that support this. This is only a draft and I would welcome any comments. Thesis Statement: Even though having a

137. maths

what is the product of place values of 5 & 0 in 95120

138. maths

what is the difference in the place values of 3 in 432139

139. maths

what is the product of place values of 7 and 1 in 237010