1. Math

The Acme Candy Company claims that 60% of the jawbreakers it produces weigh more than .4 ounces. Suppose that 800 jawbreakers are selected at random form the production lines. Would it be unusual for this sample of 800 to contain 386 jawbreakers that weigh

2. Science Fossils

When might preserved remains of an entire organism form? A. When sediment buries the hard part of an organism. (this one) B. When an event such as quick burial or freezing preserves an entire organism. C. When minerals replace parts of an organism. D. When

3. PHYSICS

Jamal pulls a 150-N sled up a 28.0 degrees slope at constant speed by a force of 100 N. Near the top of the hill he releases the sled. With what acceleration does the sled go down the hill?

4. PHYSICS

A 100-kg box is placed on a ramp. As one end of the ramp is raised, the box begins to move downward just as the angle of inclination reaches 15 degrees. What is the coefficient of static friction between box and ramp?

5. Basic Chemistry

2) Which of the following is a pure substance? (1point) Chocolate milk Orange juice Seawater*** Hydrogen peroxide (H2O2)

6. Chemistry

A solution contains an unknown amount of dissolved magnesium. Addition of 3.38×10−2mol of Na2CO3 causes complete precipitation of all of the magnesium. What mass of magnesium was dissolved in this solution?

7. math

If b=6 what is the value of 7b?

8. physics

In the apparatus shown in the figure (Figure 1) , m1 = 10kg and the coefficients of static and kinetic friction between m1 and the table are 0.69 and 0.32, respectively. Part A What mass of m2 will just barely set the system in motion?

9. Statistics

A package of self-sticking notepads contains 6 yellow, 6 blue, 6 green, and 6 pink notepads. An experiment consists of randomly selecting one of the notepads and recording its color. Find the probability that a green notepad is selected given that it is

10. PHYSICS

An Olympic skier moving at 20.0 m/s down a 30.0 degrees slope encounters a region of wet snow, of coefficient of friction uk = 0.740. How far down the slope does she go before stopping?

11. Physics

A 1260-kg car starts from rest at the bottom of a drive way and has a speed of 3.00 m/s at a point where the drive way has risen a vertical height of 0.600 m. Friction and the drive force produced by the engine are the only two nonconservative forces

12. Math

a number between 1000 and 9999, inclusive, is chosen at random. what is the probability that it contains a)no 9's? b) at least one 9?

13. Physics

Block 1, of mass m1 = 0.650kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass m2, as shown. For an angle of θ = 30.0∘ and a coefficient of kinetic friction between block 2 and the plane of μ = 0.400, an acceleration

14. Physics

A small lead ball of mass 2kg is suspended at the end of a light string 1m in length. A small peg, 0.5m below the suspension point, catches the string in its swing. The ball is set swinging through small angles. A) What is the period of the pendulum? B)

15. algebra

what is the minimum value for z=3x-1/2y over the feasibility region defined by the constraints? a.-4 b.-5 c.-3 d.-6

16. managerical finance

You want to purchase a new condominium which costs \$329,000. Your plan is to pay 20 percent down in cash and finance the balance over 25 years at 6.25 percent. What will be your monthly mortgage payment?

17. Electricity and Electronics

1. A transformer has a primary voltage of 115 V and a secondary voltage of 24 V. If the number of turns in the primary is 345, how many turns are in the secondary? A. 8 B. 690 C. 72 D. 1,653 2. To use your left hand to determine the direction of the

18. Algebra 1

d is to 4 as 32 is to 56. if answer is a fraction change to decimal

19. calculus

Determine the value(s) of x where the function will have an instantaneous rate of change of 14. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = x3 + 33 x2 + 14 x + 39

20. chemistry

the combustion of propane produces carbon dioxide and steam C3H8(g)+5O2(g) 3CO2(g)+4H2O(g)

21. Geography (Ms. Sue)

1). Why were people able to say, "The sun never sets on the British Empire"? A: People were able to this because the British Empire was so large and covered so many parts of the globe that it was always daylight somewhere in the empire. 2). Why do you

22. PHYSICS

A worker pulls a 200-N packing crate at constant velocity across a rough floor by exerting a force F = 55.0 N at an angle of 35.0 degrees above the horizontal. What is the coefficient of kinetic friction of the floor?

23. math

the arithmetic series 1 + 4 + 7 + ....tn has a sum of 1001. how many terms does the series have?

The type of accounting concerned with providing information and analyses to managers within the organization is referred to as

25. Economics

This problem is based on the specific factors model. Consider the economy of the Shire that produces cereals and swords. Each industry employs Hobbits, but land is specific to the production of cereals, and metal is a specific factor in the sword industry.

26. Physics

The systems shown below are in equilibrium (with m = 4.80 kg and θ = 27.0°). If the spring scales are calibrated in newtons, what do they read? Ignore the masses of the pulleys and strings and assume the pulleys and the incline are frictionless. scale in

27. science

For many years pellagra was believed to be an infectious disease promoted by unsanitary conditions. it was common in sanatoriums and orphanages but only among the patients and not the staff. a study of the diets showed that suffers of pellagra rarely ate

28. Math- urgent

What is (6.91 x 10-2 power) + (2.4 x 10-3 power) ? Express your answer in scientific notation.

29. MathsSs triG

Consider sin(x-360)sin(90-x)tan(-x)/cos(90+x) 1.A.SIMPLIFY sin(x-360)sin(90-x)tan(-x)/cos(90+x) to a single trigonometric ratio B.hence or otherwise without using a calculator,solve for X if 0

30. English

1. If I had studied hard, I could have gotten a higher score. 2. If I had studied hard, I could have gotten a better result. 3. If I had studied hard, I could have gotten a good/better grade. 4. If I had studied hard, I could not have gotten a lower score.

31. physic

As you look out of your dorm window, a flower pot suddenly falls past. The pot is visible for a time t, and the vertical length of your window is Lw. Take down to be the positive direction, so that downward velocities are positive and the acceleration due

32. algebra 1

You work in the local mailroom at a college. One of your duties is to sort local mail from all of the other mail. You can sort 8 pieces of mail in 10 seconds. How many pieces of mail should you be able to sort in 45 minuets?

33. MATH help needed asap

A surveyor, standing 80 ft. from the base of a building, measures the angle of elevation to the top of the building to be 75 degrees. How accurately must the angle be measured for the percentage error in estimating the height of the building to be less

34. Science

A scientist goes to a large international conference and hears about a new discovery. The scientist is very excited about these new findings and decides to verify the other scientists’ results by conducting her own investigations. The scientist is being

35. Math

what is 8x25x23 in mental math use subtraction

36. Chemistry

1. Which of the following is one way to prevent the corrosion of iron? A. Paint exposed iron parts with protective paint. B. Protect the iron from polluted air. C. Add carbon to the iron. D. Let the iron develop a natural coat of carbonate. 2. The source

37. Physics

A piece of copper wire has a resistance per unit length of 5.50 x 10^-3 Ω/m. The wire is wound into a thin, flat coil of many turns that has a radius of 0.200 m. The ends of the wire are connected to a 12.0-V battery. Find the magnetic field strength at

38. Physics

A "swing" ride at a carnival consists of chairs that are swung in a circle by 19.8 m cables attached to a vertical rotating pole, as the drawing shows. Suppose the total mass of a chair and its occupant is 144 kg. (a) Determine the tension in the cable

Can you help me with my new math homework? Regroup each mixed number by regrouping a 1 from the whole number. 1 1/4. 8 5/12. 4 5/9. 2 1/3 Can you please explain each one of this problem for me please step by step.thank you!

40. History Question

1) How did Connecticut, Rhode Island, and New Hampshire colonies begin? (1point) Founders of all three colonies strongly disagreed with the Massachusetts colony, and sought to establish their own communities elsewhere.*** All three were spearheaded by

41. physics

Car a with a mass of 1250kg is travelling at 30m/s to the east. Car b is a truck with a mass of 2000kg, travelling to the west at 25m/s. Assume these two vehicles experienc an inelastic collision but do not stick together and car a goes off 10m/s to the

42. physics

A football is thrown toward a receiver with an initial speed of 15.4 m/s at an angle of 38.7 ◦ above the horizontal. At that instant, the receiver is 17.7 m from the quarterback. The acceleration of gravity is 9.81 m/s 2 . With what constant speed should

43. chemistry

when 15.0g of steam drops in temperature from 275.0 celsius to 250.0 celsius, how much heat energy is released?

44. chemistry

A student took 100 mL of a solution of Mg(OH)2 and reacted it with HCl (aq) to calculate the concentration of hydroxide ions in the solution. If 13.75 mL of 0.010M HCl was used to react with all of the OH- (aq) in the 100-mL solution, what was the

45. Physics

A hockey player hits a puck with his stick, giving the puck an initial speed of 5.8m/s . Part A If the puck slows uniformly and comes to rest in a distance of 20m , what is the coefficient of kinetic friction between the ice and the puck?

46. physics

The figure shows an arrangement in which four disks are suspended by cords. The longer, top cord loops over a frictionless pulley and pulls with a force of magnitude 82.6 N on the wall to which it is attached. The tensions in the shorter cords are T1 =

an aquarium is in the shape of a right rectangular prism. each side of the aquarium is a rectangle that is 10 in wide and 8 in high. when the aquarium is tilted, the water in it just cover an 8 in by 10 in end, but only three-fourths of the rectangular

48. ECN (Micro)

Use the concept of opportunity cost to explain the following. a. more people choose to get graduate degrees when the job market is poor. b. more people choose to do their own home repairs when the economy is slow and hourly wages are down. c. there are

49. Physics

A young woman named Kathy Kool buys a sports car that can accelerate at the rate of 5.14 m/s 2 . She decides to test the car by drag racing with another speedster, Stan Speedy. Both start from rest, but experienced Stan leaves the starting line 0.78 s

50. Physics

A charged particle with a charge-to-mass ratio of |q|/m = 5.7 x 10^8 C/kg travels on a circular path that is perpendicular to a magnetic field whose magnitude is 0.69 T. How much time does it take for the particle to complete one revolution?

51. physics

Find x-component of vector d=(110m , 46 degrees below + x-axis). Find y-component of vector d=(110m ,46 degrees below + x-axis). Find x-component of vector v=(350m/s , 28degrees above + x-axis). Find y-component of vector v=(350 , 28 above + x-axis). Find

52. physics

A football is thrown toward a receiver with an initial speed of 15.4 m/s at an angle of 38.7 ◦ above the horizontal. At that instant, the receiver is 17.7 m from the quarterback. The acceleration of gravity is 9.81 m/s 2 . With what constant speed should

53. calculus

An influenza epidemic has an infection rate modeled by I ' (t)=30 e0.04 t , where t is time measured in days since the start of the epidemic on January 14th , and I '(t) measures the infection rate in people per day. On January 14th there were 800 infected

54. Light

1. If you're driving towards the sun late in the afternoon, you can reduce the glare from the road by wearing sunglasses that permit only the passage of light that's A. dispersed in a spherical plane. B. polarized in a vertical plane. C. polarized in a

55. Math

A surveyor, standing 80 ft. from the base of a building, measures the angle of elevation to the top of the building to be 75 degrees. How accurately must the angle be measured for the percentage error in estimating the height of the building to be less

56. that

Georgia purchased a house in 1998 for \$220,000. In 2003 she sold the house and made a net profit of \$50,000. Find the effective annual rate of return on her investment over the 5-yr period. Please round the answer to the nearest tenth of percent.

57. Algebra 1

You work in the local mailroom at a college. One of your duties is to sort local mail from all of the other mail. You can sort 8 pieces of mail in 10 seconds. How many pieces of mail should you be able to sort in 45 minuets?

58. Physics

A powerful motorcycle can produce an acceleration of 3.5 m/s2 while traveling at 90 km/h. At that speed the forces resisting motion, including friction and air resistance, total 400 N. (Air resistance is analogous to air friction. It always opposes the

59. computers

compute the unit price for products sold the program should input the name and price of an item and its weight in pounds and ounces. Then it should determine and display the unit price write a pseudo code program that will allow a user to find the unit

60. Math Explanation

Explain what 4 raised to the fourth power means.

61. Math

Julie has been offered two jobs. The 1st one pays \$400 per week. The 2nd job pays \$175 per week plus 15% commision of her sales. How much will she have to sell i n order for the 2nd job to pay as much as the first? how do you do this? i don't know the

62. Math

The tens digit is a multiple of 5 The hundreds digit is 1 less than the tens digit The ones digit is less than the hundreds digit The sum of the digits is a multiple of 6 What is the mystery number??

63. Physics

An object (mass 3.2kg ) slides upward on a vertical wall at constant velocity when a force F of 54N acts on it at an angle of 60∘ to the horizontal. N = 27 N Determine the force of kinetic friction on the object.

64. Science

What are names of fats and carbohydrates deficiency diseases?

65. Math

Use the linear approximation (1+x)^k=1+kx to find an approximation for the function (3+3x)^(1/3) for values of x near zero. Help would be greatly appreciated!

67. Microeconomics

which of the following situations describes an equilibrium? which does not? if the situation does not describe an eqilibrium, what would an eqilibrium look like? a. many people regularly commute from the suburbs to downtown Pleasantville. due to traffic

68. math HELP

Identify the missing info that would be necessary to solve the following which type of graph would be more appropriate to represent the number of inches of rain during a 6 - week period a bar graph or a line graph?

69. algebra

The height of a missile (h), in feet, is given by the equation h=8000t-16t^2, where t us time in seconds. What is the time it takes to reach the maximum height?

70. math(Ms.Sue)

5 students are trying out for the debate team. There are 3 available spots for the team.How many combinations of teams can the debate team make My answer is 15 am i right? If not please tell me your answer and how you got it

71. physics

A block of mass 2.40 kg is pushed 2.09 m along a frictionless horizontal table by a constant 18.6 N force directed 23.7o below the horizontal. Determine the work done by the applied force. Determine the magnitude of the normal force exerted by the table.

72. Psychology

The voltage at a receptor site has just changed from -70 millivolts to -75 millivolts as a result of an _______ and will ________. a). inhibitory postsynaptic potential;increase the likelihood of an action potential. b). excitatory postsynaptic

73. calculus

Find the area bounded by {y=x2−4 y=4−x2 • sketch the region described • determine any intersection point(s) for the curves (show work!!) • write out the integral(s) that will calculate the area • determine the area (may use a calculator)

74. Algebra 1

A triangle has a perimeter of 81 inches. The side lengths can be found by x, 3x-1, and 4x+2 what is the value of x?

75. Calculus

Use the linear approximation (1+x)^k\approx 1+kx to find an approximation for the function f(x) for values of x near zero. I need help for (3+3x)^(1/3). Please help me!

76. stats

An investment broker reports that the yearly returns on common stocks are approximately normally distributed with a mean return of 12.4 percent and a standard deviation of 20.6 percent. On the other hand, the firm reports that the yearly returns on

77. problem solving - math

3 persons are to divide among themselves 21 equal cask, of which 7 are full, 7 are half full, and 7 are empty. how can an equitable division be made, without pouring the wine from any cask into any other, in such a way that each person receives the same

78. Derivatives

Find the derivatives of: 1. H(x)= sin2xcos2x The answer given is 2cos4x. My question is, how in the world did they get that!? Shouldn't the answer at least contain the sin function, either negative or positive seeing as it's the derivative of cos? Also,

79. compemtary math

. To determine the compound amount of an investment of \$10,000 with an interest rate of 6% compounded monthly after 4 years requires you to use a table factor that goes beyond the Compound Interest Table. Calculate the new table factor for this investment.

80. Thermodynamics

The initial state consists of a closed system containing one mole of water (liquid) at 85°C and 1 atmosphere pressure. The immediate surroundings are also at 85°C and 1 atmosphere pressure. The change in state is described as this one mole of liquid

81. maths

if y=e^(3x) sin 4x. Show that (d^2y/dx^2)-(6dy/dx)+25y=0 (b) for the curve with equation y=(x^2+1)/(x^2-4), find (i) the cordinates of the turning point(s). (ii) the equation of the asymptotes

82. Definitions

I have looked and looked for 4 examples of a standalone computer but I have only found two. They are a fax machine, and TiVo box. Could someone please tell me what two more examples are?

83. maths lite,life science,geography and tourism

What career can I take

84. History

Protestants who wanted to reform the Anglican church were called what?

85. math

Rob has a balance of 1695\$ in his bank account The account pays 2.9% interest per year, compounded annually. The compound interest formula is A=P(1+i)^n A=future value\P=principal/i+interest rate/n=number of payments rods balance will reach 3000\$ after how

86. History

What is a representative government? I think the answer is people elect representatives.

87. Law

1. What is an agreement that is entered into with an evil purpose in order to commit the crime of conspiracy? A. Non-motives Doctrine B. Felony motives Doctrine C. Corrupt Motives Doctrine D. None of the above i'm confused between C and D 2. If Fred and

88. history

Which laws attempted to restrict speech that directly criticized the government

89. psy331

Locate a scholarly, peer-reviewed journal article in the Ashford University Library. This article must be an original research project published within the past five years. The study should illustrate one of the following conditioning principles:

90. calculus

Find the derivative of the function. G(y) = (y − 1)3/ (y2 + 2y)7

91. Special Education Setting

when working with behavior disordered children in the classroom,the teacher aide can modify behaviorby A)praising them when they succeed. B)using the same teaching techniques for every student C)underestimating what the child can do. D)reinforcing the

92. geography

in 1949, near what country were the communist nations of europe located?

93. Math

A band played 3 concerts and earned a total if 321.00. The band earned about the same about the same about the same amount for each concert. Estimate how much the band earned each night

94. Physics

A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum

95. Physics

At an amusement park there is a ride in which cylindrically shaped chambers spin around a central axis. People sit in seats facing the axis, their backs against the outer wall. At one instant the outer wall moves at a speed of 3.44 m/s, and an 64.3-kg

96. Math

Eight students tried out for the band or chorus. Five students tried out for band, and the rest tried out for the chorus. How mwny students tried out for the chorus?

97. Calculus: implicit differentiation

Find dy/dx by implicit differentiation 1. x^3 -xy+ y^2= 7 The given answer is (y-3x^2)/ (2y-x), but I'm not getting it. 2. How would I do this one? If I couldn't do the above one, which looks a heck of a lot simpler, I doubt I'll get through this one. x^

98. Science

The gas in a cylinder with a piston has a volume of 2.4 m3 and a tempture of 450k. Kwpping the pressure constant the volume is changed to 7.2 m3. What is the new temputure?

99. Anatomy

A ________ are designed to alleviate friction that may be caused by accessory structures, like a tendon, during movement of a synovial joint.

100. English

How does the following quote support the idea that class division is a type of prejudice seen in the novel, To Kill A Mockingbird?: "There's four kinds of folks in the world. There's the ordinary kind, like us and the neighbours, there's the kind like the

101. grammar

can you explain the predicate and complete predicate in a sentence

102. math

alaska has 18 national parks. if you add zero to that number, you get the number of national parks in virginia. how many national parks are in virginina?

103. English

1. If I had brought an umbrella, I would not have gotten wet. 2. If I had brought an umbrella, I would not have been wet. 3. If I had brought an umbrella, I would have stopped rain from falling on me. 4. If I had brought an umbrella, I would not have

104. maths

given that x+1/x=3 (a) expand (x+1/x)^3 and use your expansion to show that x^3+1/x^3=18. (ii) expand (x+1/x)^5, using your expansion and the previous results to find the value of x^5+1/x^5

105. maths

given that y+x=2 and 3^x=4^y . Show that x=1n16/1n12, and find y in a similar form.

106. Math

Pat has \$3. He gets some from his parents. He now has twice as much money as Dani. Write an expression to represent how much money Dani has. Tell what the variable represents.

107. economics

According to the permanent income hypothesis, households will tend to react to a temporary tax cut by? A) assuming the new tax level will be permanent. B) saving most of the additional disposable income. C) increasing consumption sharply in response to the

108. finance 572

Briarcrest Condiments is a spice-making firm. Recently, it developed a new process for producing spices. The process requires new machinery that would cost \$2,025,141. have a life of five years, and would produce the cash flows shown in the following

109. English !!!

For this assignment, you will write an editorial about an issue that confronts your school or community. What does this mean?

110. Science

4. Chlorine and bromine react by the equation​​Cl2(g) + Br2(g) D 2BrCl(g) Kc = 1.2 x 102 at 150oC. What are the equilibrium concentrations of each reactant and product if a 2.0 L container initially contained 0.026 mole each of Cl2 and Br2 at 150oC?

111. math

Doug has 170 stamps in his two-book collection. his first book of stamps has 30 more stamps in it than his second book. How mwny stamps are in each book?

112. maths

If a and b are integers and 14/3=a/b what could be the value of a+b?

113. engineering (logic systems design)

Two flip-flops are connected as shown below. The delay represents wiring delay between the two clock inputs, which results in clock skew. This can cause possible loss of synchronization. The flip-flop propagation delay from clock to Q is 10 ns < tp < 15

114. physics

a 100g mass of cookie dough hits inelastically with a 300g mass of cookie dough and they stick. the 100 g mass was moving to the right at 40 m/s and the 300g mas was moving to the left at 5 m/s. what is the final velocity of the massive cookie dough ball?

115. physics

A piece of wood with mass m = 2.8 kg is held in a vise sandwiched between two wooden jaws as shown in the figure below. A blow from a hammer drives a nail which exerts a force of 440 N on the wood. If the coefficient of static friction between the wood

116. Anatomy

Orthodontic braces can be painful, this is due in part to placing mechanical stress on the ____________ (joint type), causing ___________ of the alveolar sockets of the mandible/maxilla as the teeth are slowly repositioned.

117. Math

13/15 - 2/3 =

118. Anatomy

The ______ ______ (two words), a syndesmosis, which provides a pivot point where two parallel-aligned bones, like the tibia and fibula, can move against each other.

7/12 x 36 =

120. math,pre algebra

Apples sell for 1.29 a pund and there is an average of 3 apples per pund.About how many apples would you expect to get for 5.00

121. Law

1. If a minor female agrees to break into a home with the intent to use the bed in the house for sexual intercourse with her boyfriend, she may be convicted of what crime? A. Burglary of a habitation B. Statutory rape C. Criminal trespass D. None of the

122. 2 more History Questions

1) Pilgrims who came to the Americas in the 1600’s were mainly seeking________.(1point) God, gold, and glory A colony solely for Catholics Profits from lucrative tobacco plantations Religious freedom*** 2) Maine was originally part of which of the four

123. trigonometry

Determine the general solution of 8cos^2x-1=0

124. health care policy making

Explain how stakeholders become involved in the policy making process and why their voices often become a driver for change in health policy. That is the assignment any ideas on where I can find some information? would i look government laws

125. maths

when the depth of liquid in a container is x cm, the volume of the liquid is x(x^2+25) cm^3. Liquid is added to the container at a constant rate of 2 cm^3/s. Find the rate of change of the depth of the liquid at the instant when x=1

Rounded to the nearest ten I am 780. I am even. The sum of my digits is 17. How do you get the answer?

127. maths

given the equation of the curve as y=8-2x^2 (a) find equations of tangent and the normal to this curve at the point where x=a. (b) find the value of a for which this tangent is parallel to the line with equation 3x-y+6=0

128. science

How can a particle have energy but no mass?when there is an equation E=mc^2. Another question how can light particles have momentum without mass !When p=mv>>>>>>>>>DOUBT PLZ CLARIFY! DOUBTS ARE THE KILLERS OF HUMAN BRAIN!

Identify the missing info that would be necessary to solve the following which type of graph would be more appropriate to represent the number of inches of rain during a 6 - week period a bar graph or a line graph? what is the missing info

130. Math

Solve two ways 315/9

131. physits

if the treadmills initial speed is 1.6 m/s what's it final speed

133. geometry

the perimeter of a rectangle is 72. the base is 3 times the height find the area of the rectangle

134. chemistry

rank these amino acid from most polar to least: His, Phe, Ser, Ile, Asp, Trp i don't think my answer is correct... Ser>Asp>His>Phe>Trp>Ile

135. math

water tower is 11 feet high diameter is 18 feet,how many cubic feet are in this tower?

136. maths

(a) prove that sqrt of 3 is irational. (b) find an irational number between -4 and -2

137. problem solving - math

timothy owns 13 chains, each chain having 3 links. timothy wants to use all the small chains to make one circular chain of 39 links. he needs 4 minutes to cut open a link and 10 minutes to close it by smoldering. timothy makes the big chain in 140 minutes.

138. U.S. History

discribe three of the trials and tribulations that native americans endure during the settlement of the west

139. Math

y = ½ x^2 – x +3 for 1≤x≤6 (b) Calculate the mid- ordinates for 5 strips between x = 1 and x= 6, and hence use the mid-ordinate rule to approximate the area under the curve between x = 1, x = 6 and the x = axis. (c) assuming that the area determined

140. Calculus

Book works out integral of sqtr(a^2-x^2)dx as a^2/2*arcsin(x/a)+x/2*sqrt(a^2-x^2) by taking x=a sin theta, and advises to work it out using x=a cos theta. I did and got the first term as -a^2/2*arccos(x/a)and the same second term. This means arcsin

If you are the owner of a Jani- King cleaning service franchise. And your accountant has determined that your business will need \$27,500 in new equipment in 3 years. If your bank is paying 6% interest compounded monthly how much must you invest today to

142. physics

A soccer ball is kicked from the ground with an initial speed of 18.0 m/s at an upward angle of 41.2˚. A player 51.1 m away in the direction of the kick starts running to meet the ball at that instant. What must be his average speed if he is to meet the

143. Physics

Ahmad throws a ball straight up. For which situation is the vertical velocity zero? [Note: Neglect the air resistance] Answer at the top on the way up none of the above on the way down

144. Contempoary Mthematics

Question8: Using the Present Value Table on page 358 of your text to compute the present value (principal) for an investment with a compound amount of \$20,000, a 30 moth term of investment, and a 14% nominal interest rate compound semiannually. Question 9.

145. How do I subtract this?

How would I subtract this? [(8)/(x+h+8)] - [(8)/(x+8)]

146. psychology

During periods of physical development, the __________ of a sensation is critical if perception is to function normally. A. experience B. interpretation C. expectation D. mass function

147. Science

a block of graphite has a mass of 4.4x10 2 kg, a volume of 0.2 m3, a weight of 4.3x10 3 n, and exerts a pressure on the table of 10.7 kpa. what is the density of graphite?

148. science

The gas in a cylinder with a piston has a volume of 2.4 m3 and a pressure of 120 kpa/ keeping the tempture constant the pressure is changed to 240 kpa. what is the new volume?

149. Math

How could the fact 36/6=6 help you estimate the quotient of 364,573/64?

150. math

the price of a fax machine is marked down from \$305 to \$262.30. what is the rate of discount

151. discrete mathematics

how many baseball games of single elimination must be played by 421 teams in a tournament before a winner is determined

152. History

The colony of georgia served as a military barrier between who? I think the answer is Spanish Florida and British South Carolina

153. chemistry

what is a catalyst

154. Math

16 1/4 - 10 11/20 =

155. Found. Addict & Substance Abuse

What are the components of an effective aftercare plan for alcohol/drug abusers?

156. Math

5 9/10 + 2 3/5 =

157. UOP

Environmental sustainability is development that meets the needs of the present generation without compromising the ability of future generations to meet their own needs. An Asian country advertises the creativity of its workforce in animation, software

158. Anatomy

The ______ of the knee not only provide cushioning but assist with stability and improving fit between the articulating surfaces during movement.

159. ordering rational numbers

put in order from least to greatest 4/9, .4, .45

160. microeconomics

a.in an auction, potential buyers compete for a good by submitting bids. adam compared ebay auctions in which the same good was sold. he founf that,on average, the larger the number of bidders, the higher the sales price. for example, in two auctions of

161. Algebra1

Books: Over the summer, you read 20 books. Eight of these books were biographies. a. Find the ratio of biographies to the total number of books. b. Find the ratio of non-biographies to biographies. c. Find the ratio of non-biographies to the total number

162. maths

differentiate and find the cordinates of 2x/(1+x^2)^2

163. English

1. Who knows about the glass copy other than you? 2. Who knows about the glass copy except you? 3. Who knows about the glass copy except for you? (Are they all the same in meaning?)

164. psy331

In research, several principles have been shown to affect the strength of association between stimuli. Based on your own experiences in learning, provide an example of each of the following principles of association: contiguity, frequency, and intensity.

165. maths

the curve c has equation y=x^2-1nx, x>0. Show that c has just 1 turning point and find its cordinates.

166. maths

given that y=1nx/x, x>0 (a) find the value of x for which dy/dx=0 (b) find the value of x for y=0 (c) find the point where d^2y/dx^2=0

167. Calculus & Vectors

Sketch the sets of complex numbers that would satisfy the following equations. a) |z| > 3 b) z = bi how would the sketches look like?

168. Chemistry

Using atomic masses, If a certain batch of D2O has a purity of 99.75 weight %, what is its purity in atom (actually molecule) %

169. algebra

can i get help with this question please solve by completeing the square 1/2x^2 -7x=16

171. maths

find equations for the tangent and the normal at P (1n2, 2k) on the curve with equation y=ke^x, where k is a constant. (b) given that y=sin^-1x, show that (1-x^2)d^2y/dx^2-xdy/dx=0

172. English

trust: to believe someone that they are honest and sincere (is the definition of 'trust' grammatical?)

173. problem solving - math

the men are camping 45 miles due west and then go 60 miles directly north. if they can cover 18 miles a day how long will it take them to reach the railroad?

174. Science - Electricity

Acetylene gas is leaking from a cylinder in the immediate vicinity of an insulated conveyor belt which has built up a charge of 3.0ìC. If the conveyor belt has a capacitance of 80pF, is there a danger of the acetylene being ignited? Consider both energy

175. Psychology

What are some examples of an agonist?

176. maths

in the binomial expansion of (1+x/k)^n, where k is a constant and n is a positive integer, the coefficients of x and x^2 are equal. (a) show that 2k=n-1 (b) deduce the value of k. Hence find the 1st 3 terms in the expansion in ascending powers of x.

177. maths help plz!

can anyone tell me how you can find the angle of 6 different side of hexagon.

178. Eng. Comp III

I'm not sure what I am supposed to do here I am to write a Bibliographic essay on my sources for my final research essay - what does this entail? I don't want you to do my homework for me,just give me a couple of examples please, Thank You, Sara

179. Math

-13 5/7 / 9 3/5 455/336

180. microeconomics

a.in an auction, potential buyers compete for a good by submitting bids. adam compared ebay auctions in which the same good was sold. he founf that,on average, the larger the number of bidders, the higher the sales price. for example, in two auctions of

181. math

Mr. Burns ran 14 miles last week. He only ran on Monday, Tuesday, and Wednesday. If Mr. Burns ran 3 miles on Tuesday and 5 miles on Wednesday , then how many miles did he run on Monday?

182. pys

An advertisement has the best chance for success if it: A. is accompanied by loud music and rapid banter. B. is above threshold. C. contains a single subliminal message. d. contains a grouping of words repeated below threshold

183. MAT 102

What is the domain of "p" when p(x)=x squared-2x+4

184. foreign

Does anybody know a good website that will give me an easy step-by-step instruction set for a cultural dance Help DESPRATE!!!!!!!!!!!!!!!!!!!!!!!!!!!

185. Math

102.6 divided by 4 Estimate to prove that your answer makes sense.

186. logical reasoning

how to write 2nd oct 2013 in 6 letters without using numbers

A farmer has a rectangular field that is 48 by 36, he wants to fence 16 small pens, how much fencing does he need?