1. geometry

in triangle de, FE = 12 and m d=62. Find DE to the nearest tenth.

2. algebra

A movie theater has 400 seats. Tickets at the theater cost \$8 for students, \$10 for adults, and \$7 for senior citizens. On a night when all the seats were sold, the theater made \$3,535 from ticket sales. If the number of adult tickets sold was 10 less than

3. math

Determine if the statement is always, sometimes, or never true: A right triangle is an obtuse triangle. always sometimes never

4. Precal

A ski patroller pulls a rescue toboggan across a flat snow surface by exerting a force of 45 pounds on a handle that makes an angle of 22° with the horizontal. Find the work done in pulling the toboggan 160 feet.

5. maths

In the equation (he)^2 = she the letters represent digits.Find replacements for the letters to make the statement true.

6. calculus

At a price of \$7.5 per ticket, a musical theater group can fill every seat in their 1500 seat performance hall. For every additional dollar charged for admission, the number of tickets sold drops by 95. a) What ticket price maximizes revenue? Round your

7. English - Miss Sue Help!!!

Rewrite the following paragraph. Add colons and semicolons where needed. Note that a spelling/grammar-checker does not always catch these errors. One of the most exciting experiences in my life was traveling to Uruguay in South America in June of 2005,

8. Chemistry

I got 0.907 KJ for ΔHcomb but I don't know if its correct. I also don't know how to write the equation. -------- question: A calorimeter is filled with 10.0 mole of methane gas and an excess of oxygen. When burned, the ignition wire releases 107.2 J of

9. science

At a murder scene, you have started making an image of a computer’s drive. You’re in the back bedroom of the house, and a small fire has started in the kitchen. If the fire can’t be extinguished, you have only a few minutes to acquire data from a 10

10. math

Which of the following is a negation of the statement below? All cats are not mammals. All mammals are not cats. All cats are mammals. Some cats are mammals. All mammals are cats.

11. calculus

The number of Drosophila fruit flies in a controlled experiment assumes the following growth pattern when the food source is limited: N(t) = 120/(1+11e^(−0.4t)) D. At what rate is the number of fruit flies increasing after 4 days?

12. English

Rewrite the following paragraph. Add colons and semicolons where needed. Note that a spelling/grammar-checker does not always catch these errors. One of the most exciting experiences in my life was traveling to Uruguay in South America in June of 2005,

13. Design

Design a class named StockTransaction that holds a stock symbol (typically one to four characters), stock name, number of shares traded, and price per share. Include methods to set and get the values for each data field. Create the class diagram using

14. Calculus Help!

At a price of \$7.5 per ticket, a musical theater group can fill every seat in their 1500 seat performance hall. For every additional dollar charged for admission, the number of tickets sold drops by 95. a) What ticket price maximizes revenue? Round your

15. math

Which statements about a rhombus are always true? Its diagonals are congruent. All angles are congruent. All sides are congruent. Its diagonals are Û to each other.

16. calculus

The number of Drosophila fruit flies in a controlled experiment assumes the following growth pattern when the food source is limited: N(t) = 120 1+11e−0.4t where t measured in days. A. How many fruit files were there in the beginning? B. What is the

17. statistics

A committee of three people is to be formed. The three people will be selected from a list of five possible committee members. A simple random sample of three people is taken, without replacement, from the group of five people. Using the letters A, B, C,

18. geometry

one side of a parallelogram has endpoints (2,1) and (3,5) The endpoints for the opposite side are (5,2) and (6,6) true or false

19. Algebra

The length of a side of a rectangle is 2 units less than a number, and the width is 4 units more than the length. Which of the following expressions represents the area of the rectangle, in square units? A. x^2+2x+4 B. x^2-2x+8 C. x^2-4 D. x^2+4

20. ACCOUNTING ASSIGNMENT

case from : ACCOUNTING FRAUD WORLDCOM There will be a (7) seven page report,excluding figures, tables, appendices, and references,required for the term paper. The written report must be typed, single sided, and 1.5 lines-spaced. The following items and

21. math

A picture frame is 18 inches long and 8 inches tall. It is 2 inches wide on all 4 side. What is the area of the picture frame?

22. eng III

Analyze the sentence to select the adverb clause, subordinating conjunction, and the word(s) modified in the appropriate boxes below. He responds whenever he is called.

23. Math

A trundle wheel can be used to measure the walking distance between two locations. a) If the diameter of a trundle wheel is 45cm, how far will a person have walked when the wheel makes one full rotation? b) If a person walks for 0.7km, how many times has

24. science

The cider is heated from an initial temperature of 4°C to a final temperature of 65°C. The steam enters the heat exchanger as 50% quality steam and exits as water condensate at 85°C. Calculate the mass of steam required to heat 150 kg of cider. (For the

25. calculus

N(t) = 650 1+649 e−0.5 t . (You may wish to sketch a graph of N(t) to help you understand this situation and answer the questions below.) (a) How many people will have heard the rumor after 2 hours? After 12 hours? (b) When will half the people have

26. Science

a jogger with a mass of 60.0kg is moving at a speed of 3.0m/s. what is the jogger's kinetic energy? KE=270 joules Can you show me the steps to this answer please.

27. American literature

5. Is Hester consistent in her rebelliousness?

28. justice

Locke’s purpose in examining the “state of nature” is:

29. physics

A power station with an efficiency of 0.35 generates 10^8 W of electric power and dissipates 1.86 ✕ 10^8 W of thermal energy to the cooling water that flows through it. Knowing the specific heat of water in SI units is 4184 J/kg°C, calculate how many

30. math

Bob's age is now 3 times of Tom's age. Twelve years from now, tom will be 15 years old. How old is Bob now? please explain and show work

31. math

In a certain class there are 12 boys and 18 girls. If the class average for an algebra exam is 90 and the boys' average score is 87, what is the girls' average score?

32. science

A horizontal spring-mass system has low friction, spring stiffness 210 N/m, and mass 0.6 kg. The system is released with an initial compression of the spring of 11 cm and an initial speed of the mass of 3 m/s. suppose that there is energy dissipation of

33. english

Analyze the sentence to select the adverb clause, subordinating conjunction, and the word(s) modified in the appropriate boxes below. Please get to bed early since you have a test tomorrow.

34. calculus

Year 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 % having VCR 0.2 0.3 0.7 1.2 2.4 4.6 8.7 15.5 23.9 34.2 45.4 50.6 56.6 61.3 (a) During what year does the point of "diminishing returns" (i.e., the inflection point) appear to take

35. algebra

In their last basketball game, Becky scored twice as many points as Min. Together, they scored 42 points. How many points did Becky score?

36. physics

Determine the banking angle needed to make a high-speed turn off a highway exit ramp with a radius of 720 m if the vehicle is travelling at 80 km/h. Assume there is no friction.

37. Economics

What is the future worth of P6oo deposited at the end of every month for 4 years if the interest rate is 12% compounded quarterly?

38. calculus

C(q) = q3−60q2+1200q+760 for 0 ≤ q ≤ 50 and a price per unit of \$551. Round your answers to the nearest whole number. a) What production level maximizes profit? q = b) What is the total cost at this production level? cost = \$ c) What is the total

39. math

a saleman, after deducting his commission of 6%, remits \$2491 to his company. The gross amount of the sale amounted to.

40. geometry

which set of ordered pairs has point symmetry with respect to the origin (0,0) 1- (-12,5), (-5,12) 2- (-12,5), (12,-5) 3- (-12,5), (-12,-5) 4- (-12,5), (12,5)

41. mathematics

A balloon is in the shape of a cylinder with a hemisphere at both ends.The height of the cylinder is 4 times that of the radius.Air is pumped in the balloon at a rate of 60cm cubed per second .At what rate does the surface area change if the radius is 8cm?

42. CHEMISTRY

I have trouble how to resist pH in buffer solutions ( in acidic buffer , and in basic buffer ) when we add an acid , and a base ! how the reactions in buffer follow Le chatlier's principle ?

43. Chemistry

I got 0.907 KJ for ΔHcomb but I don't know if its correct. I also don't know how to write the equation. -------- question: A calorimeter is filled with 10.0 mole of methane gas and an excess of oxygen. When burned, the ignition wire releases 107.2 J of

44. Algebra

Translate the phrase to mathematical language. Then simplify the expression the difference between 119 and -40 What is a numerical expression for the phrase?_________(Do not Simplify) Now simplify the expression

45. homework help

can you please read my response to : . Is Hester consistent in her rebelliousness? In this story The Scarlet Letter, Hester Prynne to rebel from within the walls of her enemies’ territory. The rebellion is mainly an inner transformation. As she makes her

46. calculus

N(t) = 120/(1+11e^(−0.4t) D. At what rate is the number of fruit flies increasing after 4 days?

47. CHEMISTRY

HF + H2O H3O+ + F- By dissolving 0.03 mol HF in 1 L water , seen that [HF] at the equilibrium is 0.027 M , then : 1) If we divide 0.03 mol/ 1 L it would be 0.03 M , why that difference ? 2) How many moles HF in 1 L water is required to reach the

48. Social Studies

what was the name of George Washington's home and what is the location of his home? Answer: Mount Vernon was the name of his home and its location was on the Potomac River

49. math

The base of a rectangular prism is 6 inches - 9 inches. what is the lateral area of the prism

50. Chemistry

An aqueous solution of NaCl is 270m. If the density of the solution is 1.20g/ml. Find a) % NaCl by mass b) Molarity of NaCl in the solution.

51. public speaking

Your central idea is a statement that captures in a single sentence:

52. medical coding

To fully eliminate all infectious microorganisms, which of the following measures must be used?

53. Math

A retail outlet purchased 300 printers at a list price of \$100 less 7%, and 6%. The rate of markup on selling price on the printers was 40%. After selling 40% of the shipment, the rest of the printers were marked down to a reduced selling price. When there

54. math

A girl walks 3/4 of the way home in 18 minutes. At the same rate, she can walk the rest of the way home in A. 4 1/2 minutes B. 6 minutes C. 9 minutes D. 24 minutes

55. math

A regular hexagon has sides of 5 feet. What is the area of the hexagon

56. geometry

What is the distance between (-4,3)and (5,-2)

57. Work Ethic

How do I work efficiently without getting distracted?

58. economics

what is the rate of return on an initial investment of \$2000 and you generate \$500 return?

59. Math

Most credit cards require that you pay a minimum monthly payment of 2% of the balance. based upon a balance of \$5,270.00, what would be the minimum monthly payment.

60. Social Studies

what was the name of Lincoln's home and where was it located? Answer: I think his home was located in Springfield Illinois, and the name of his home was Lincoln's home.

61. fracton

Laufren had a handful of m&m there were 4 red 1 orange and 1 blue. What fracion reprsent the number of red m&m

62. History

Question about Puritans behavior in Massachusetts? I was given a picture that wont let me post on here. The top picture has a cowboy boot and a book, and the second picture has a more feminine boot, with dice, a cup, etc. And have to answer: What does the

63. anatomy

How does coronary artery disease affect normal homeostasis of the cardiovascular system

64. Spanish help

1. ¡Qué sabrosa está la paella! Le voy a pedir _______ a mi amiga. A. la mostaza B. la receta C. el cocinero D. la masa I said B 2. Tengo que llevar un plato a la fiesta de Marta, pero no sé cocinar muy bien. ¿Qué debo hacer? Sugiero que _____ una

65. math

A girl walks 3/4 of the way home in 18 minutes. At the same rate, she can walk the rest of the way home?

66. nau

4x+y==21 7x-4y=8

67. math

at the rate of 360 miles per hour, how far would an airplane travel in 1 hour and 20 minutes

68. chemistry

When 3.00 moles of sodium are reacted with large amounts of chlorine gas 145.8 g of sodium chloride are produced determine percentage yield

69. physics 2

find the speed of proton 0.08m,mass of proton is 1.67x10^-27 kg

70. math

A 3,5 m-long stick casts a shadow that measures 5,2 m on the ground what is the height of a flagpole that casts a 29,2 m-long shadow?

71. Math (Discrete Math)

find the least positive integer N so that 1

72. math

15feet 6 inches cut in half equals

73. english

We swam for two days, and we were tired. please I need this sentence with out a comma splice Is this is correct? We swam for two days and we were tired. Underneath that, write the corrected sentence without the comma splice.

74. art history

A mastaba is:

75. Math

Prove or disprove If a/b - 2c and a/2b + 3c then a/b and a/c

76. math

for all integers a, b, c, If a/b - 2c and a/2b + 3c then a/b and a/c Is a question from discrete mathematics Thanks for your help.

77. english

Analyze the sentence to select the adverb clause, subordinating conjunction, and the word(s) modified in the appropriate boxes below. When you obey your parents, you please the Lord.

79. math

If length of one side of a 3x3 square is four times, and the length of the adjacent side is tripled, the perimeter of the new rectangle is how many times bigger than the perimeter of the original square? please explain and show work.

80. math

What number, when has "4" as exponent and increases by 4, is equal to the product 26 and 10?

81. Math

for all integers a, b, c, If a/b - 2c and a/2b + 3c then a/b and a/c Thanks for your help.

82. Math

A park is open 16 weeks of the year. An equation that models the cost function in thousands is: c(x){5, 00 Determine the profit function for x>0

83. trig

In 60 ft. Run sith a 21 degree slope what is rise(ft)

84. macreconomics

Due to an increase in the internet security threats, the government wants to apply a price control in this market to encourage more people to become internet security professionals. Assume that a wage control is set at \$75,000. Will this increase the