# Questions Asked onDecember 17, 2011

1. ## Physics

The angular speed of a propeller on a boat increases with constant acceleration from 12 rad/s to 26 rad/s in 2.5 revolutions. What is the acceleration of the propeller?

2. ## math

a ball is dropped from a height of 3m and bounces on the ground . At the top of each bounce, the ball eaches 60% of its previous height. Calculate the total distance travelled by the ball when it hits the ground for the fifth time

3. ## trig math

Prove that tan(theta)tan(60+theta)=tan3theta

4. ## dgh

Two Trees are 150 m apart. From a point halfway between them, the angle of elevation of their tops is 15°and..? 15°, and 20°. a)How much taller is one tree than the other? b) Where would a person have to stand in order to have the angle of elevation to

5. ## Calculus (Normal Line, please check my work)

The slope of the line normal to the graph of 4 sin x + 9 cos y = 9 at the point (pi, 0) is: Derivative: 4cosx - 9siny(dy/dx) = 0 (dy/dx) = (-4cosx) / (-9siny) (dy/dx) = (4) / 0 Normal line = -1 / (4/0) Does this mean that the slope of the normal line is

6. ## Economics

What is the maximum amount it would be worth to shareholders to elicit high CEO effort all the time rather low CEO effort all the time?

7. ## Physics

A basketball player, standing near the basket to grab a rebound, jumps 65.6 cm vertically. How much time does the player spend in the top 10.7 cm of his jump

8. ## geometry

Use the figure below to answer questions 8-10. Point B is the midpoint of Segment A C.. A line segment with three points on it. From left to right, the points are labeled A, B, and C. 8. a. Find x if AB = 4x and BC = 2x + 10. b. Use the answer for x to

Read the case study below “Hi-Ho Yo-Yo, Inc.”. Write a short summary of each of the four methods for selecting the order in which to release the products to printing. Complete a short analysis for each method which provides the average flow time and

10. ## math

Solve the following equation. 4m^2 = 2 − 7m m = 1 (smaller value) m = 2 (larger value)

11. ## math

The length of a rectangle is 8 inches more than three times the width. The perimeter is 88 inches. Find the length and width

12. ## Calculus

A cup has a radius of 2" at the bottom and 6" on the top. It is 10" high. 4 Minutes ago, water started pouring at 10 cubic " per minute. How fast was the water level rising 4 minutes ago? How fast is the water level rising now? What will the rate be when

13. ## math

The length of a rectangle is 4 inches more than the width. The perimeter is 32 inches. Find the length and width.

14. ## math

Use factoring by grouping to solve the following equation. 4x3 + 8x2 − 9x − 18 = 0 x = 1 (smallest value) x = 2 x = 3 (largest value)

15. ## Social Studies

Why Do You Think It Was Hard For Spain To Maintain It's Empire ? Explain.

16. ## algebra

determine the domain, range and horizontal asymptote Please show all your work f(x) = - (3/4)^x - 1 Help!

17. ## scientist

Scientists performed an experiment to determine whether there is a connection between learning ability and food. They took two groups of 20 mice each, all from the same purebred strain. The mice were deprived of food for 3 days and then given a standard

18. ## algebra

The number of tickets sold each day for upcoming perfomance of Handel's Messiah is given by N(x)=-0.6x^2+15.6x+12, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that

19. ## medicial termalogy

I need help on writing a fictitious medical report describing a dermatologic condition or disease?

20. ## math

A catering company has 15 customer orders during its first month, for each month afterward, the comopany has double the number of orders than the previous month. How many orders in total did the company fill at the end of its first year ?

21. ## math

Five times the difference of twice a number and thirteen is negative five. Find the number

22. ## Math - complex numbers

These questions are related to de moivre's theorem: z^n + 1/z^n = 2cosntheta z^n - 1/z^n = 2 isin ntheta 1. Express sin^5theta in the form Asintheta + Bsin3theta + Csin5theta and hence find the integral of sin^5theta. 2. Express sin^6theta in multiples of

23. ## kv khurda

an artificial satellite is orbiting the earth. A bomb is released from the satellite. The bomb will (a)explode due to the heat generated by the friction of air (b)fall freely on the earth (c)escape into outer space (d)orbit the earth along with the

24. ## physics

an air puck of mass 0.347 kg is tied to a string and allowed to revolve in a circle of radius 1.09 m on a horizontal, frictionless table. The other end of the string passes through a hole in the center of the table and a mass of 1.48 kg is tied to it. The

25. ## statistics

suppose a company receives 60% of its order the internet. what is the probability that the fifth order received is the first internet order? what is the probability that the eight order received is the fifth internet order?

26. ## maths

find area of the triangle with the length of the side 36cm,48cm, and 60cm.

27. ## Finance

You receive \$12,000 and looking for a bank to deposit the funds. Bank A offers an account with an annual interest rate of 3% compounded semiannually. Bank B offers an account with 2.75% annual interest rate compounded continuously. Calculate the value of

28. ## math

Solve the following equation. (Examples 1-6) 15x2 = -17x + 4 x = 1 (smaller value) x = 2 (larger value)

29. ## math

Solve the following equation. x^2 + 28x = 0 x = 1 (smaller value) x = 2 (larger value)

30. ## function ( partial fraction)

if f(x) ax^2+bx+c , g(x) :1/3x^2+2 and fg(x)= 18x^4+24x^2+11/(3x^2+2)^2. find a ,b and c

31. ## English

What does it means? "The art of life is to know how to enjoy a little and to endure very much." ~ William Hazlitt

32. ## math

Solve the following equation. 16x^2 − 16x + 4 = 0 x = 1 (smaller value) x = 2 (larger value)

33. ## Chemistry

If the specific optical rotation specification for a sample is -48 to -51 deg, which is the Upper Specification Limit? Is it -48 or -51?

34. ## math

LCM of (2+9u),(4-81u^2)and (2-9u)

35. ## Math

Express sin^6theta in multiples of costheta and hence evaluate the integral of sin^6theta from 0 to pi/2. Thanks in advance! :)

36. ## math

Solve the following equation. ( x^2 + 8x + 7 = 0 x = 1 (smaller value) x = 2 (larger value)

37. ## physics

two vhiles move in opposite dirctions to each other with constant speeds of 20 m/s and 30 m/s if the initial distance betwen the vehicles is 100 km. how many second later do they meet

38. ## pre calculus

graph the function below. Determine the domain, range and horizontal asymptote. f(x) = -(3/4)^x - 1

39. ## polynomial

given that the expression ax^3-11x^2+bx+2 is exactly divisible by 2x^2-3x-2, find a and b then factorise completly (do not use long division).

40. ## science

laboratory connects a 16§Ù resistor, 23§Ù resistor, and a 34§Ù resistor in series and then comes the arrangement to a 36V dc source. How much current is in the circuit?

41. ## precalulus

Change the exponentional expression to an equivalent expression involving a logarithm. 7^c = 0.026

42. ## History

Do You Think It Was Right Or Wrong For The United States To Declare War On Spain ? Explain.

43. ## Art

umsl dean's awards for creative achievement in arts????? Is it possiable to earn that award in you live in ny????

44. ## algebra

Solve the equation below. Please show all of your work log_7(x + 3/7) = -2

45. ## math

Use factoring by grouping to solve the following equation. 4x^3 + 8x^2 − 9x − 18 = 0 x = 1 (smallest value) x = 2 x = 3 (largest value)

46. ## physics

A car travels from city a to city b at a constant speed of 60 km/h.A bus leaves city a 1h after the car and catches it as it enters city b.the distance betwen ehe cities is 240 km.what is the speed of the bus{assumed to be constant] during its journey

47. ## Fine Art

what is hilda m. willis arts scholarship??????

48. ## physics

if you exert a force of 500N to walk 4M up a flight of stairs in 4S , how much power do you use?

49. ## Astronomy

On the Vernal Equinox, you see the Moon in the Waxing Gibbous Phase at an angle of 45 degrees above the eastern horizon. What is the approximate local time? On the Autumnal Equinox, you see the Moon in the Waning Crescent Phase at an angle of 45 degrees

50. ## social studies

Do You Think It Was Right Or Wrong For The United States To Declare War On Spain?

51. ## chemistry

How do you properly solve _ Ag + _ Cu(Nu3)2 ---> _ AgNo3 + _ Cu

52. ## physics

There are many ropes keeping a hot air balloon from floating away before a balloon race. One of these ropes is fixed to the ground at a 45° angle. Another is fixed to the ground at a 30° angle. If the hot air balloon is 18 feet off the ground, what is

53. ## finances

a friend barrowed \$5,000.00. I charged him 12 percent intrest. he paid it off over a 10 month period. Now what is the intrest total that he owes me? I thought I had it figured out and he said it not right.

54. ## science

What are some examples of aquitards?

55. ## pre calculus

Write the expression below as a single logarithm. Need to know how to work this! ln(x-5/x^2 - 1) - ln (x^2 - 2x -15/x + 1)

56. ## pre calculus

Use properties of logarithms to find the exact value of the expression log_7 (343 * 7^15)

57. ## english 1`0

I need daily diary entries for antonio from the merchant of venice

58. ## Physical Chemistry

Substitute U = uV and P = (1/3)u into the equation (ðU/ðV)T = T(ðP/ðT)V – P to show that it leads to du/u=4(dT/T). *NOTE: u depends only on T*

59. ## English

I need to double check my work please. Revise to create pronoun-antecedent agreement and eliminate the generic he and any awkward pronoun reference. 1) While shopping for a new computer for school, I noticed that a laptop costs much less then they use to.

60. ## To: n/a -- Re: English

I've deleted your post because it's an online test with answers. If you want to know why those answers are correct, recheck your text materials. Btw -- are you sure they are all correct?

61. ## health

You have just accepted a position at a physician's office as the revenue expert. In addition to billing and coding expertise for added/improved revenue, the physician has asked for youn to develope new sources of revenue. You are to research and present at

62. ## Algebra Help

Could someone place explain how to solve the following - 4t^2/5=t/5+3/10 5t/6-t/2=1 Thanks

63. ## english

the essay needs to be proof read and any suggestions or corrections will be greatly helpful! The Unbiased Killer Caner is known as unbiased killer that knows no race, age or sex of it victims. The disease lung cancer is the Number one cause of cancer

64. ## english

as i participate in x mas pagent i need lyrics for mary' s boy child sung by boney M can you assist me

65. ## algebra

1.Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in stadard form ax^2+bx+c=0 Solution 7, only solution 2.The width of a rectangle is less than the length. The area is 4ft^3. Find the length and the

66. ## health

I have to do a research paper and present at least three new appropriate legal revenues sources for consideration. I must also include how to code and bill for each of them.

67. ## physics

A police car moveing at 140 km/h is changing a lorry moveing at 120 km/h.If the initial distance betwen them is 500m,how many minutes later and at what distance from its initial position does the police carb catch the lorry

68. ## Algebra

In 2006 population of country was 32.2 million. This represented an increase of 3.6% since 2001. What was population of country in 2001. Round to nearest hundredth of a million.

69. ## English

what are 4 main disadvantages of visiting other countries?

70. ## algebra

find the equation of a line being given the slope and containing a point of m=4/5,(1,-2)

71. ## algebra

The width of a rectangle is 3ft less than the lenght. The area is 4ft^2. Find the lenght and the width

72. ## English

Do you know why rhetoric is called a public activity?

74. ## Question

What was the real information for Holocaust Museum and Study Center Contest??? I forgot the name and I tried looking for the information and I couldn't find it.

75. ## math

Correction of problem submiited earlier. The amount P of pollution varies directly with the population N of people. City A has a population of 494,000 and produces 260,000 tons of pollutants. Find how many tons of pollution we should except City B to

76. ## algebra

N(x)=-0.6^2+15.6x+12, where x is the number of days since the concert was first announced, When will daily ticket sales peak and how many tickets will be sold that day ticket sales peak- number of tickets sold-

77. ## English

I don't understand what Aristotle's definition of rhetoric is. He said that is was the repetition of dialect, parallel to one another but still different.

78. ## Trig

Eight Fundamental Identities Sec thada - Cos thada How do I do this?

79. ## Trig

Please disregard last question .... wrote it down wrong .. Thanks

80. ## Math C30

Eight Fundamental Identities Sec thada - Cos thada- on one side tan thada sin thada- on the other side How do you do this ???

81. ## English

What does this definition of rhetoric mean by Plato: the persuasion of ignorant masses within the courts and assemblies

82. ## English

true or false 1)true or false, diction, rhythm,phrasing,sentence length,and other features of language make up a writer's style 2)in the story a pair of silk stockings, irony is not important to the theme 3)in the white heron, the white heron means the

83. ## English

According to the first philosophers, did they think of rhetoric as good or negative? I know that Aristotle thought of it more good because it wasn't just used for politics, but for much more. Plato looked on it more negatively because it could easily

84. ## chemistry

why are they shaped liked this 1)BF4- is a tetrahedral molecule 2)SF3+ is a Trigonal pyramidal molecule 3)ICI4- IS A SQUARE PLANER molecule 4IF5 IS A SQUARE pyramidal molecule 5)PF5 IS A TRIGNAL BIPYRAMIDAl molecule help Dr bob222

85. ## Writing

Is there a contest when you make your own literay maganzine (full of their art work and stories or poems they wrote) and the winner get it publish????

86. ## geometry

quadrilateral has vertices at P(–2, 5), Q(0, 5), R(–2, 3), and S(0, 3). Find the length of , to the nearest hundredth

87. ## geometry

quadrilateral has vertices at P(–2, 5), Q(0, 5), R(–2, 3), and S(0, 3). Find the length of , to the nearest hundredth

88. ## Trig

Column 1 Column 2 sec theta - cos theta tan theta sin theta Question: how do you get column 1 to be the same as column 2 ?? using the eight fundamental identities

89. ## Trig

Column 1 Column 2 (sin theta + cos theta)sq 1 + 2sin theta cos theta Question : how do you get column 1 to be the same as column 2?? using the trig identities

90. ## Trig - Thanks Damon

Thanks for the help Damon. Much appreciated. Don

91. ## English

Question Teacher marked wrong why Sam and Sally want to buy candy. Only other choice could have Sam and Sally wants to buy candy.

I would like to know if my answers are correct. A principal of 6500.00 is invested in an account paying an annual rate of 4%. Find amount in acct after 4 years if acct is compounded semiannually, quarterly and monthly. Semiannually - 7615.79 Quarterly -

93. ## nursing

The ANA'S ethical theories and principles and how it incorporates in its operations. Provide an example of how it applies these theories and principles

94. ## math

logarithm base 20 of 39

95. ## Algebra

JOHN MOWS HIS LAWN IN 6 HRS,WHEREAS JANE MOWS SAME LAWN IN 3 HRS?? MY QUESTION IS HOW MUCH TIME WOULD IT TAKE FOR BOTH TO MOW THE LAWN TOGETHER???

96. ## Statistics

6. If we reject H0:µ = 10 in favor of Ha:µ 10 at a given level of significance with a positive value of the test statistic z, then if we test H0:µ = 10 versus Ha:µ > 10 using the same sample, Ha:µ > 10 will ______ be rejected at the same significance

97. ## Algebra

10A^8/7V^3 TIMES 49R^7/100A MULTIPLY AND SIMPLIFY

98. ## Algebra

REMOVING FACTOR OF 1: 4Z-24/6-Z

99. ## Algebra

SOLVE:Y-4/Y+1=2/5 HELP

100. ## Algebra

FIND THE LCM OF (2+9U),(4-81U)AND (2-9U)???? HELP

101. ## English

Question Teacher marked wrong why Sam and Sally want to buy candy. Only other choice could have Sam and Sally wants to buy candy.

102. ## physics

A car travels from city a to city b at a constant speed of 60 km/h.A bus leaves city a 1h after the car and catches it as it enters city b.the distance betwen the cities is 240 km.what is the speed of the bus{assumed to be constant] during its journey

103. ## math

Car Insurance Use the histogram below to answer the following questions. a)How many students were surveyed? b)What are the lower and upper class limits of the first and second classes? c)How many students have an annual car insurance premium in the class

104. ## chemistry

3 NO2(g) + H2O(g) ==> 2 HNO3(g) + NO(g) What is the maximum number of liters of HNO3(g) that can be made from 17.45 L of H2O(g) and 12.06 L of NO2(g) at STP?

105. ## statistics

Do you think there is a correlation between CEO salaries and the degree of success of a company? If you were to take a sample of companies with comparable size, market capitalization, and product category, and plot CEO salaries against the net profit of

106. ## Algebra

FIND THE LCM OF (2+9U),(4-81U)AND (2-9U)???? HELP

107. ## Trig

Prove that the equation is an identity: cot4theta - csc4theta = -cot sq theta - csc sq theta How ??

108. ## English

Could you please check these sentences, please? Thank you. 1) Jane Austen appeared on the literary scene with her novel of manners based on the premise (synonym?) that there is (was?) a vital relationship between manners, social behavior and character. 2)

109. ## Question

Do Explo Summer Program of Yale have to look at what you done in high school (grades, clubs, etc.)????? You can apply to this program if you are a junior or senior. This is my brother's question he is curious.

110. ## Algebra

Solve: y-4/y+1=2/5

111. ## Trig

Prove the equation is an identity : csc3theta - csctheta + cottheta/csctheta = cotsqtheta + costheta wow ... try that one

112. ## Algebra

Removing factor of 1: 4z-2y/6-z explain how to solve this pleaseeeee

113. ## Communications Studies

How do scholars differ on whether media-depicted violence triggers aggressive behavior?

114. ## human service

What makes an agency culturally competent? Agency cultural competent is the ability to interact effectively and successfully with people of different cultures. where can I find this information that I need for my anser to be complete?

115. ## Communications Studies

How has a trusteeship concept for broadcast regulation given way to a marketplace model? Consider technological shifts.

116. ## Communications Studies

What are the three technologies on which the primary mass media are built?

117. ## Math

In 2006 population of country was 32.2 million. This represented an increase of 3.6% since 2001. What was population of country in 2001. Round to nearest hundredth of a million.

118. ## math

One number is eight more than twice another. If their sum is decreased by nine, the result is fourteen. Find the numbers....smaller value and larger value

119. ## Math

Differentiate 1/tanx I got -sec^2 / tan^2x, which is correct, but the answers said I could also simplify this to -cosec^2. How would you do that? Thanks =)

120. ## Math

the 12th term in a geometric sequence is 49, and the 14th term is 2401 . Find the 15th term

121. ## Math

The 13th termof an arithmetic sequence is 61 and the 20th term of the squence is 82. Calculate the sum of the first 25 terms of the sequence

122. ## Algebra

Find the LCM of(2+9u),(4-81u)AND (2-9u)???? HELP

123. ## Math

Differentiate (1- sinx) / (1 +sinx) How would I do this? The answer is (-2cosx)/ (1 + sinx)^2 Thanks in advance :)!!

124. ## Finance

(Inflation) A project’s initial investment is \$40,000, and it has a five-year life. At the end of the fifth year, the equipment is expected to be sold for \$12,000, at which time its net book value will be \$5,000. The CFATs (including inflation,

125. ## Maths

Differentiate (sin^3)x and use this result to evaluate the integral of sin^2 x cos x dx between pi/2 and 0. Thanks!

126. ## math

why do oyu change the last two signs when subtracting two negative numbers?

127. ## Math

Simplify by removing factors of 1: 6w-36/6w Would the answer be 6w or 1 since 6w/6w would equal 1 ???? help me

128. ## Trig

The next two steps in solving this trig identity question are ??? 1/csctheta x costheta x sintheta x sectheta = sinsqtheta arghhh need help please

129. ## Math Problem

Find the function Value F(x)=x^3 F(-5)=

130. ## Math

Solve: y-4/y+1=2/5 would the answer be 14/3 ???

131. ## math

Five times the difference of twice a number and thirteen is negative five. Find the number

132. ## math

One number is eight more than twice another. If their sum is decreased by nine, the result is fourteen. Find the numbers.

4z-24/6-z=-z,-4

134. ## Finance

Your firm has the option of making an investment in new software that wil cost \$130,000 today and is estimated to provide the savings shown in the table over5 years. year savings estimate 1 \$35,000 2 50,000 3 45,000 4 25,000 5 15,000 should the firm make

135. ## Finance

If you won \$2,5 million in a lottery. You can receive \$1.3million now or \$100,000 at the end of each of the next 25 years, You can earn 5% annually on the investments . Which is the better option?

136. ## Finance

You receive \$12,000 and looking for a bank to deposit the funds. Bank A offers an account with an annual interest rate of 3% compounded semiannually. Bank B offers an account with 2.75% annual interest rate compounded continuously. Calculate the value of

4z-24/6-z=-z,-4

138. ## function

given that f(x)= 3-7x+5x^2-x^3, factorise the polynomial completely, hence state the set of values of x for which the function is equal or less than zero .

139. ## Algebra Help

In 2006 population of country was 32.2 million. This represented an increase of 3.6% since 2001. What was population of country in 2001. Round to nearest hundredth of a million.