# Questions Asked onMay 8, 2013

1. ## Data Gathering and Inference

When the production manager finds the average life of her bulb-lifetime data, it is an example of what phase of inferential statistics? A. Data organization. B. Data gathering. C. Data analysis. D. Probability-based inference.

2. ## Chemistry

Consider a generic redox reaction then suppose that the coefficients in the redox reaction are doubled. How will the following quantities be affected for a voltaic cell under nonstandard conditions, will they be Doubled, Halved, Squared, or No Change. Note

3. ## MATH HELP?!?!?!

1. Maria has the following scores in her mathematics class: 86 75 97 58 94 and 58 a: Find the mean median and mode b: Should Maria's Mathematics class teacher use mean median or mode of the exam to convince Maria that she needs to study more regularly? 2.

4. ## ENGLISH LITERATURE

ANSWER ONE ESSAY 'TAKE A NOBLE MAN. PUT HIM IN A SITUATION WHERE DESPITE HIS NOBILITY HE FAILS TO MAKE THE RIGHT DECISION OR CHOICE . SEE HIS GRADUAL DECLINE AND DOWNFALL . FEEL HORROR AT THE SIGHT OF HIS COLLAPSE . THIS S THE TRAGEDY OF OTHELLO . TAKING

5. ## statistics

According to the Census Bureau's 2002 American Community Survey, the average travel time to work of workers 16 years and over living in Boston, MA, who did not work at home, was 28.2 minutes with a standard deviation of 0.79 minutes. A sample of 35 commute

6. ## HELP HARD CHEM. QUESTION!

Using the following spontaneous reactions, classify the 3 metals involved (Cr, Sn, Al) according to increasing reductant properties. a)2Cr + 3Sn2+ ->2Cr3+ + 3Sn b)Al + Cr3+ -> Al3+ + Cr

7. ## statistics

The distribution of heights of American women aged 18 to 24 is approximately normally distributed with mean 65.5 inches and standard deviation 2.5 inches. What is the probability that a randomly selected woman is between 60 and 64 inches tall?

8. ## english

Fable for tomorrow This town does not actually exist, but it might easily have a thousand counterparts in America or elsewhere in the world. I know of no community that has experienced all the misfortunes I describe. Yet every one of these disasters has

9. ## statistics

According to a Gallup Poll conducted in March of 2009, 38% of American adults polled believe that global warming will pose a serious threat to them or their way of life in their lifetime. Assuming a sample size of 1000, calculate a 95% confidence interval

10. ## geometry

Shalonda notices that when she stands next to the flagpole, she casts a shadow that is 8 feet long and that the flagpole casts a shadow that is 28 feet long. Little Shalonda is 4 feet tall. How tall, to the nearest foot, is the flagpole? step by step on

11. ## math

find the accumulated value of an investment of \$10000 for 5 years at an interest rate of 5.5% if the money is a. compounded semiannually; b. compounded monthly; c. compounded continuously.

12. ## Trig

Use sum and difference identitites to find the exact value of co 15 degrees

13. ## HELP! CHEMISTRY

Which one of the following species will react with Sn at standard state conditions? a) S b) Ag+ c) Cu d) Zn2+ What does it mean by standard state conditions? And what do I have to look at to determine it? Would it be Zn2+?

14. ## Physics

What is the electric force between a glass ball that has +4.5 × 10−6 C of charge and a rubber ball that has −7 × 10−6 C of charge when they are separated by a distance of 4.9 cm? The value of the Coulomb constant is 8.98755 × 109 N · m2/C2.

15. ## algebra 2

A dog kennel is to be constructed alongside a house using 60 m of fencing. Find the dimensions that will yield the maximum area. How do you solve this problem?

16. ## trig identities

Find the exact value of cos (2theta) given csc theta = 8/3 and 0 < theta < pi/2

17. ## math 12

the productivity of a person at work (on a scale of 0-10) is modeled by a cosine function: 5cos (pie/2t) +5, where t is in hours. If the person starts work at t=0, being 8:00 am, at what times is the worker the least productive? a) 12pm B) 10 am and 2pm C)

18. ## statistics

5. What happens to the width of our confidence interval for m if we increase the sample size but keep the confidence level the same? A) It increases. B) It decreases. C) It stays the same. D) It depends on the sample mean and standard deviation.

19. ## statistics

11. Suppose we are estimating m. What happens to the required sample size as the population standard deviation increases while the confidence level and desired margin of error remain constant? A) It increases. B) It decreases. C) It does not change.

20. ## statistics

Assume that body temperatures of healthy adults are normally distributed with a mean of 98.2°F and a standard deviation of 0.62°F. Suppose we take a sample of eight healthy adults. What is the probability that their mean body temperature will be greater

21. ## Psychology

Sound which impinges on the inner ear and the auditory nerve arrives as a fairly meaningless stimulus. At this point, it should be viewed as: (Points: 5) perception. sensation. an auditory stimulus item. free of environmental noise. I believe it is

22. ## Psychology

When physical energy has resulted in a response in a sense organ, it is clear that: (Points: 5) perception has taken place. the activation is the result of stimulus. the brain has interpreted the event. a single isolated sense is now perceiving the event.

23. ## Psychology

In a classroom experiment, students were asked to place one paper clip in each hand. They were then instructed to add paper clips to the left hand until they were certain that the clips in the left hand weighed more than the paper clips in the right hand.

24. ## Psychology

A physiological support of hypnosis as a different state of consciousness is: (Points: 5) rapid eye movement initiated when a person is hypnotized. a change in the electrical activity of the brain in hypnosis. the sense of time removed. reaction time slows

25. ## Psychology

Although someone who is hypnotized may be compliant and susceptible to suggestion, it is clear that: (Points: 5) they are pretending and know exactly what they are doing. they will be able to recall the directions and events which took place after they

26. ## Psychology

Barry knew Alice was tired, but he was surprised that the argument between their three-year-old twin boys did not awaken her. She had not been asleep very long and occasionally changed her position, but did not wake. Alice is probably in: (Points: 5) stage

27. ## statistics

do students who learned English as well as another language simultaneously score worse on the SAT critical reading exam than the general population of test takers? the mean score di 501. A random sample of 100 test takers who learned English as another

28. ## statistics

students who learned English as well as another language simultaneously score worse on the SAT critical Reading exam than the general population of test takers? The mean score among all test takers on SAT Critical Reading exam is 501 A random sample of 100

29. ## Physics I need help someone plz help out

An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same

Which one of the following species will react with Sn at standard state conditions? a) S b) Ag+ c) Cu d) Zn2+

31. ## Maths

Suppose a and b are positive integers satisfying 1≤a≤31, 1≤b≤31 such that the polynomial P(x)=x3−ax2+a2b3x+9a2b2 has roots r, s, and t. Given that there exists a positive integer k such that (r+s)(s+t)(r+t)=k2, compute the maximum possible value

32. ## physics

Two parallel narrow slits are at a distance of 0.840 mm apart. Each of them has a width of 0.140 mm. The double slit is illuminated with parallel light of wavelength 546.1 nm. (a) Find the ratio of the intensity of the central maximum to that of its

33. ## Probability

You have a 4-card deck containing a queen, a jack, a 10, and a 9. You draw a random card, put it back, and draw a second random card. Use a tree diagram to calculate the probability that you draw exactly 1 face card (a queen or a jack). A. 1/2. B. 7/16. C.

34. ## statistics

A study involving the economic burden of congestive heart failure found that the lengths of hospital stays for patients had a mean of 7.8 days with a standard deviation of 9.1 days. For random samples of size 40, find the sample mean length of stay that is

35. ## math

rewrite the expression by factoring out (v+5) 5v^2(v+5)+3(v+5)

36. ## Physics

At the upper surface of the earth's atmosphere, the time-averaged magnitude of the Poynting vector is referred to as the solar constant and is given by =1.35×103W⋅m−2 . (a) If you assume that the sun's electromagnetic radiation is a plane sinusoidal

37. ## chem

The solubility of nitrogen in water is 8.21 E-4 mol/L at 0°C when the nitrogen pressure above water is 0.790 atm. Calculate the solubility of nitrogen in water when the partial pressure of nitrogen above water is 9.55 atm at 0°C?

38. ## Physics

Consider the stability of a ladder of mass m and length L leaning against a wall. A painter wants to be sure the ladder will not slip across the floor. He knows that the frictional force exerted by the floor on the bottom end of the ladder is needed to

39. ## Psychology

As a scientist, Carl is concerned with the intensity of lights in the modern human environment. In his research project, Group A consists of volunteers who have agreed to sleep each night for a week with a 150 watt light bulb hanging over their bed. Group

40. ## math

A cylindrical carton of oatmeal with radius of 3.5 in. is 9 in tall. If all surfaces except the top are made of cardboard , how much cardboard is used to make the oatmael carton. Round your answer to the nearest square inch

41. ## math

a cylinder can of coca has the dimensions of base 7in and height 5 inches. what is the approximate surface area available for the label?

42. ## L.o

Identify and describe 3 enviromental health hazards that cause ill health .crises,and or disasters within your community within south africa and globally.

43. ## physics

An adult and a child are on a seesaw 14.5 ft long. The adult weighs 152 lb and the child weighs 80 lb. How many feet from the child must the fulcrum be placed so that the seesaw balances?

44. ## Chemistry

How many moles of potassium hydroxide are required to neutralize 1.25 mol of phosphoric acid? H3PO4 + 3KOH -> K3PO4 +3H2O I got 0.42 mol KOH , is this correct? thanks!

45. ## Math

Divide. Write in simplest form. 5. 1/3 divided by 2/5=5/6 6. 1/9 divided by 1/2=2/9 7.2/3 divided by 1/4=8/3=2 2/3 8. 1/2 divided by 3/4=4/6=2/3 9. 4/5 divided by 2=1 3/5 10. 4/5 divided by 1/10=40/5=8 11. 5/12 divided by 5/6=30/60=1/2 12. 9/10 divided by

46. ## Math

A lighthouse is east of a Coast Guard patrol boat. The Coast Guard station is 20 km north of the lighthouse. The radar officer aboard the boat measures the angle between the lighthouse and the station to be 23°. How far is the boat from the station?

If a galaxy is traveling away from us at 2.0% of the speed of light, roughly how far away is it? t= light years I got 2.4x10^8 light years but its wrong please help me out...thank you

48. ## Math

10. 9/10 divided by 1/2= 1 4/5 12. 8 divided by 4/5=1/4 14.9/10 divided by 1/4= 3 3/5 16. 9/10 divided by 3/4= 1 6/30 18. 15 divided by 5/9= 1/27

49. ## physics

a car is moving with a uniform speed of 72km/h .The driver sees a child at a distance of 50m. he applies brakes to stop the car just before the child. Calculate the acceleration.

50. ## ENGLISH

12. Which of the following lists demonstrates various tenses of an irregular verb? A. I call, I called, I will call B. I walk, I walked, I will walk C. I try, I tried, I will try D. I go, I went, I will go

Determine the least positive integer n for which the following condition holds: No matter how the elements of the set of the first n positive integers, i.e. {1,2,…n}, are colored in red or blue, there are (not necessarily distinct) integers x,y,z, and w

52. ## maths

The squares of a 3×3 board are randomly coloured black or white. Let W be the number of white squares and B the number of black squares. The expected value of |B−W| can be expressed as ab where a and b are coprime positive integers. What is the value of

53. ## Chemistry

A saturated solution of potassium nitrate in water is prepared at 70.0*C then cooled to 55.0*C how many grams of potassium nitrate crystallized--- how do I determine this using my graph with everyone's numbers

54. ## geometry

Shalonda notices that when she stands next to the flagpole, she casts a shadow that is 8 feet long and that the flagpole casts a shadow that is 28 feet long. Little Shalonda is 4 feet tall. How tall, to the nearest foot, is the flagpole?

55. ## Service management

An outpatient clinic has kept a record of walk-in patients during the past year. The table below shows the expected number of walk-ins by day of the week: The clinic has a staff of five physicians, and each can examine 15 patients a day on average. a. What

56. ## Math

A pen costs twice as much as a pencil. If Susan spends \$ 1.50 for a pen and a pencil, how much does a pencil cost ?

57. ## math 12

the height of a ball is modelled by the equation h(t)= 4sin (8 pie t)+ 6.5 where h(t) is in metres and t is in seconds. what are the highest and lowest points the ball reaches? a) 10.5 m and 6.5m b) 10.5m and 2.5m c) 6.5m and 2.5m d) 14.5m and 6.5 m

asked by i hate math part 2
58. ## math

suppose you roll 2 number cubes. what is the probability that the product of the numbers is a multiple of 7

59. ## Math

A pen costs twice as much as a pencil. If Susan spends \$ 1.50 for a pen and a pencil, how much does a pencil cost ?

60. ## calculus

hi im back.. solve cosx= (squareroot3)/ 2 where 0

61. ## Probability

You roll two dice. What is the probability that the sum of the dice is even and one die shows a 4? A 6x6 table of dice outcomes will help you to answer this question. A. 1/6. B. 5/18. C. 2/3. D. 5/36.

62. ## statistics

6. Which distribution has the larger mean? i) t distribution, (df = 30) ii) standard normal distribution A) i) B) ii) C) They are the same.

63. ## statistics

7. Determine whether it is appropriate to apply the Central Limit Theorem for Proportions: sample size 35, sample proportion 0.95. A) Yes B) No

64. ## math

if you have two thirds of lace and another pattern calls for five ninths of lace,how much more did the first pattern call for?

65. ## chemistry

a sample of oxygen gas has a volume of 7.64 L at a temperature of 19C and a pressure of 1.38 atm. Calculate the moles of O2 present in this gas sample

66. ## Chemistry

A beaker is filled with Ammonia (NH3) and Hexane. A surfactant with a polar head group and non-polar tail is added to the mixture, and the beaker is agitated and then allowed to equilibrate. The values of density are 0.65 g/cm3 for hexane and 0.60 g/cm3

67. ## statistics

Using the results of a Newsweek poll conducted in March of 2009, a 90% confidence interval on the proportion of adult Americans who have a favorable opinion of Barack Obama is given by (0.699, 0.741). What is the margin of error?

68. ## chemistry

a gas occupies 37.6 L at 2.00 atm pressure and 27C degrees. how many moles of gas are present in this sample

69. ## math

5 is half of my factor. the sum of my digits is four. i'm between 30 and 100. what number am i?

70. ## statistics

10. Using the results of a Newsweek poll conducted in March of 2009, a 90% confidence interval on the proportion of adult Americans who have a favorable opinion of Barack Obama is given by (0.699, 0.741). If everything else is the same, but the confidence

71. ## chemistry

Sodium dodecyl sulfate (SDS) has the structure below. The surface tension of water changes as SDS is added, as shown in the graph below. (a) Why does the surface tension of water change as SDS is added? The number of micelles increases, which allows the

72. ## statistics

12. Suppose we are estimating p and we have no prior estimate of p. Find the required sample size for a confidence level of 90% and a margin of error of 0.02.

74. ## Pre-Calculus

How does even multiplicity impact a graph?

75. ## Discrete Math

Let f : R R→Z be the closed binary operation defined by f (a, b) _ _a + b_. (a) Is f commutative? (b) Is f associative? (c) Does f have an identity element?

76. ## life oriantation

in 10-15 lines critically discuss 5 ways in which health problem impacts on the community

77. ## History

What caused the SNCC to have negative feelings toward Martin Luther King, Jr.? Give two reasons.

78. ## PHYSICS

A SPRING WITH A CONSTANT K = 8N/m IS STRETCHED 5CM AND RELEASED. IT BOBS UP AND DOWN EVERY 2.5 SECONDS. WHAT IS ITS FREQUENCY, PERIOD, ABD AMPLITUDE

79. ## History

Explain a few of the National Urban League’s social services and what they entailed.

80. ## physical science

if the maximum amount of water vapor in the air at 15 degrees c is 12.5 g/m^3, what is the actual amount of water vapor in the air if the relative humidity is 85.0%

81. ## statistics

According to a USA Today poll conducted in February 2009, 83% of adults nationwide are in favor of funding new government programs to help create jobs. Calculate the mean number of adults in favor of funding new government programs to help create jobs in a

82. ## math

15. 3/8 divided by 9=1/24 17. 2/5 divided by 4/7= 7/10 19. 6/7 divided by 3/11= 3 3/21 21. 5/6 divided by 5/12= 2 23. 7/9 divided by 1/7= 5 4/9 35. 3/5 divided by 9/11=33/45

83. ## science

a car of mass 100 kg traveling at 72 km/hr is brought to rest by applying the brakes.assuming that the kinetic energy of the car becomes transferred to internal energy in four steel brakes drum of equal mass, fine the rise in temperature of the drums if

84. ## chemistry

A. Find and list all of the different half- cell combinations. Hint 15 combinations! 1. Copper/ Cu2+ 2. Lead/ Pb2+ 3. Magnesium/ Mg2+ 4. Zinc/ Zn2+ 5. Iron/Fe2+ 6. Aluminum/ Al3+ B. write the half reactions of each combination and the overall redox

85. ## HISTORY

If you were going to compare & contrast FDR and LBJ what aspects of their lives would you compare what aspects would you contrast. I am writing a paper on them and what to get some ideas and see what other people think is important, in the end I will

86. ## Math

So the questions was-->Factor the following algebraic equation and describe the process by which it is done: x²+ 3x – 10 = ? I solved the questions correctly but my teacher said I need to show it algebraically not arithmetically. & she said that I need

87. ## programming

draw a flowchart and write a program and pseudocode that prompts the user for a starting balance and then prints the number of years it takes to reach 100000 and also number of years it takes to reach 1000000

88. ## statistics

A study performed by Bridge Ratings found that in 2006, 58% of respondents said they use a cell phone while traveling in a vehicle (the survey participants were restricted to individuals who spent at least one hour per day commuting in their vehicle). For

89. ## Ap chemistry

What is the approximate molar fraction of ethanol c2h5oh in an aqueous solution in which the ethanol concentration is 11.0 molal? A. 0.0011 B. 0.011 C. 0.170 D. 0.200 E. 0.600

describe the life style disease/ behaviour and explain 5 factors that contribute to cancer of the gullet.

91. ## life orientation

provide recommendations on how to address the topic that you identified in the previous question

92. ## Math

We first note how the polynomial in the previous exercise can be written in the nested multiplication method: 8 + x(−10 + x(7 + x(−2 + x(3 + 12x)))). Using this representation, the following pseudocode procedure (implementing Horner’s method) can be

93. ## Math

d/dx 1/cos[3cosx-2sinx)/sqrt3]

94. ## Physics Someone help please!

An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same

95. ## statistics

Merchandise inventory purchases for a firm for a three-month period are: January: 2,000 units @ \$12 per unit; February: 1,800 @ \$14 per unit; March 2,600 units @ 15 per unit. What is the mean unit cost of merchandise inventory?

96. ## Physics

A wave solution to Maxwell's Equations is given by E⃗ =E0xˆcos(5.0 z)cos( 1.03e11 t) where z is measured in centimeters and t in seconds. (a) What is the wavelength (in rad/meter) of the wave? (b) What is the index of refraction, n, of the medium? (c)

97. ## Geometry

A=5 and c=√10, then b=?

98. ## math

what is the new volume of a rectangular prism that is originally 12 cubic meters and is them resized using scale factor of 4 on each side length?

99. ## Physics

Write down the electric field and associated magnetic field in vacuum for a traveling plane wave with the following properties. The amplitude of the electric vector is E0 and the frequency is ω. The radiation is linearly polarized in the y-z plane at an

100. ## Geometry

A=5 and c=√10, then b=?

101. ## Physics

The sled is stuck in the snow. A child pulls on the rope and finds that the sled just barely begins to move when he pulls with a force of 24 N, with the rope at an angle of θ = 33° with respect to the horizontal. The mass of the sled is 14 kg. If the

Otline and explain the objective of fencing fsrm land

103. ## re: geometry

A=5 and c=2√10, then b=?

104. ## Life orientation

In 10-15 lines critically discuss 5 ways in which human or enviromental problem of nutrition on the community

105. ## Physics

Ey=E0sin(kx−ωt), Ez=4E0sin(kx−ωt), the magnetic field can be written in the following way B =[ sin(ωt+(−1)bBkx)(cBxˆ+dByˆ+eBzˆ)] In other words: Bx=cBsin(ωt+(−1)bBkx), By=dBsin(ωt+(−1)bBkx), Bz=eBsin(ωt+(−1)bBkx) Find : dB . Express it

106. ## socology

10. What type of sociologist stresses a commitment to positively impacting society through sociology? Academic Applied Public Scientific 9. What are the five key social institutions that impact society? Economy, government, religion, education, and public

107. ## Physics

An optical fiber is a flexible, transparent fiber devised to transmit light between the two ends of the fiber. Complete transmission of light is achieved through total internal reflection. This problem aims to calculate the minimum index of refraction n of

108. ## Pre Calculus

How are the factors of a polynomial related to the x-intercepts of a polynomial? How do you find the x-intercepts given the factors?

109. ## math

can someone help me in finding the process in finding the area for a triangle, trapezoid, circle and rectangle

110. ## MATH

WHAT IS PLACE VALUE AND VALUE REPRESENT

111. ## statistics

plain type fonts such as times new roman are easier to rean than fancy fonts such as gigi. a group of 25 voulunteer subjects read the same text in both fonts. (this is a matched pairs design. One-sample procedures for proportions, like those for means, are

112. ## maths-

When a number is divided by 7 and 9 , the remainder is 4 and 3. what will be the remainder of a same no. when it is divided by 37.

113. ## physics

Two parallel narrow slits are at a distance of 0.840 mm apart. Each of them has a width of 0.140 mm. The double slit is illuminated with parallel light of wavelength 546.1 nm. (a) Find the ratio of the intensity of the central maximum to that of its

114. ## english

The tried and true methods quite often can't be beat.

115. ## MATH Calculus Homework

Find the area of the region between the curve y^2=4x and the line x=3.

116. ## calculus

what is volume of each drop (US unit)?

117. ## Pre Calculus

How does even multiplicity impact a graph?

118. ## Math

How much farther did chris run on thursday than on wednesday? If he run 3 5/8 on thursday an 1 1/4 on wednesday

119. ## english

Complete each sentence so that the meaning of the italicized abstract word is made more concrete. (Each question is worth two points) 7. The party was a lot of fun. We 8. Tony is a kind boy who is apt to 9. That day I was so worried that I

120. ## Calculus

Using the equation x(t)= t^3 - 12t + 1, find the displacement during the first 3 seconds. And then find the velocity during the first 3 seconds. See, I know how to find velocity, but there's a question after that that says to find velocity when t=3...so

121. ## Pre Calculus

Solve 2cos^2(2x)=1 I divided both sides by 2 and got this cos^2(2x)=1/2 But then I didn't know what to do after that... The part that has me stumped is that it's a cos^2(2x) not just a cos^2x. Any advice on what I should try next?

122. ## CALCULUS

lim x->2 f(x) where f(x) = { x^2-x-2/ 3x-6 , x2} is f(x) continuous at x = 2 ? explain..

123. ## CALCULUS

Lim x->4 (x^2+3x+4)/5x-12

124. ## physics

How does the radiant energy from an incandescent solid differ from the radiant energy emitted by an excited gas?

125. ## Life orientation

How do poor sanitary affecf the community?

126. ## social studies

the federal system info on national government (enumerated powers). info on state government (reserved powers) info on both (concurrent powers)

127. ## chemistry

how to determine the oxalate and copper in K[Cu(C2O4)2].2H2O

128. ## math

You cut square corners from a piece of cardboard that has dimensions 32 cm by 40 cm. You then fold the cardboard to create a box with no lid. To the nearest centimeter, what are the dimensions of the box that will have the greatest volume?

129. ## math

A sample of size 100 is taken resulting in a standard deviation of 3. Construct a 95% confidence interval for the population variance.

130. ## calculus

a spring exerts a force of 150 N when it is stretched 0.4 m beyond its natural length. How much work is required to stretch the spring 0.9 m beyond its natural length?

131. ## Science

A constrained string with a length of 8.5 meters is vibrating at its fundamental frequency of 113.1 Hz. What is the frequency of the 7th harmonic on this string?

132. ## English(MAcbeth)

why is fair is foul and foul is fair a paradox and is it a motif. I believe its a motif because it keeps repeating in the story. WHy is it a paradox.

133. ## Life science

How does the sun allow you to Run the mile

134. ## CALCULUS

Lim x->4 (x^2+3x+4)/5x-12

135. ## calc

x^2 + √(x+y) + y^2 = 0; y is a differentiable function of x

136. ## REFLECTION AND OBSERVATION

Which one of the following statements uses language best to present a clear picture of a child's behavior?

137. ## Statistics

In roulette, the bet on a “split” pays 17 to 1 and there are 2 chances in 38 to win. The bet on “red” pays 1 to 1 and there are 18 chances in 38 to win. Compare the following two strategies: A: bet \$1 200 times (independently) on a split B: bet \$1

138. ## Physics Need quick help please

Estimate the total binding energy for copper. 550 MeV Estimate the energy, in joules, needed to break a 3.0g copper penny into its constituent nucleons. E= in Joules Please help me out I got 1st part I need the Energy in joules am confused please help me

139. ## Science

Please explain the terms associated with the study of levers.

140. ## Math

Find the reciprocal of each number. 1. 2 1/2 2. 1/6 6/1 3. 4/11 11/4 4. 3/5 5/3

141. ## English

At first, only adults played with the yo-yo. What effect did this have on the adults?

142. ## math

If you put me into 7 equal groups with 3 in each group and 5 left over,, what number am I?

143. ## Phase Changes

The heat of fusion of water is 335 J/g, the heat of vaporization of water is 2.26 kJ/g, the specifc heat of ice is 2.05 J/deg/g, the specific heat of steam is 2.08 J/deg/g and the specific heat of liquid water is 4.184 J/deg/g. How much heat would be

144. ## life orientation

describe the lack of physical fitness and 5 factors that contribute to the disease?

145. ## none

If a car with two passengers go off a cliff that is 100 feet over a river of water, what is the best way to land?

146. ## gov

what was the lower courts decision of the terry v.s ohio case?

147. ## Physics!

The activity of a sample of 35(upper#) 16(lower#)Sulfer (T 1/2= 7.55x10^6 s) is 2.51x10^5 decays per second. WHat is the mass of the sample? m= in grams PLease help me out...Thank you! :)

148. ## L.o

5 ways in which the human or environmental problem impacts on the community

149. ## Physics to Elena

Estimate the total binding energy for copper. 550 MeV Estimate the energy, in joules, needed to break a 3.0g copper penny into its constituent nucleons. E= in Joules Please help me out I got 1st part I need the Energy in joules am confused please help me

150. ## Math

Divide write in simplest form 13. 3/4 divided by 7/12=1 3/28 14. 9/10 divided by 9= 8 1/0 15. 2/3 divided by 5/8=1 1/5 16. 4 divided by 7/9=9/28

151. ## maths-polynomials

When a number is divided by 7 and 9 , the remainder is 4 and 3. what will be the remainder of a same no. when it is divided by 37.

152. ## Math

Do you need to regroup to find product of 34 and 3? Explain

153. ## english

Make up an alliterative headline for each of these newspaper reports.a)A man is attacked by a shark..b)The local library burns down..c)A cat is rescued from a tree by the fire brigade.

154. ## writing

im writing a research report on Marilyn Monroe, not sure how I should write it out cause of all the info. about her.i cant write it all! should I?

155. ## fanince

) A thirty-year U.S Treasury bond has a 4.0 percent interest rate. In Contrast, a ten-year Treasury bond has an interest rate of 2.5 percent. A maturity risk premium is estimated to be 0.2 percentage points for the Longer maturity bond. Investors expect

156. ## life orientation

please i need an answer for , In 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on community. provide relevent sources to support your claims.

157. ## Honors Trig

a plane is flying in the direction of 190 degrees with an air speed of 400 mph. Its course and ground speed are 200 degrees and 350 mph respectively. What is the speed and direction of the wind?

158. ## stats

It was thought that students who dressed more neatly received better grades. To test this idea, a researcher rated each student on neatness of dress and obtained their grades on a standard school achievement test. The data are presented below. Higher

159. ## Science

Please for diagrams to show the terms associated in the study of levers.

160. ## English

While I like bacon, it is not good for me. Sentence fragment Comma splice Run on sentence Complete sentence

161. ## Math

Find the value of each expression if x= 1/4 y= 3/5 and z= 2/3 28.z divided by 2 1/3

162. ## calculus

16. Given the following information, determine the constant speed, travel time, and cost that represent the minimum one-way trip delivery cost. Fuel costs per hour are equal to V^2/600 V is the speed in miles per hour Driver (labor) costs are \$10 per hour

163. ## physics

A20 kg box is suspended from the ceiling by robe that weight of the rope is 1kg find the tension

164. ## Life Orientation

1.a. Fisrt identify one environmental or human factor that causes ill health. In 10-15 lines discuss 5 ways in which the human or environmental problem impacts on the community. Provide relevant sources to support your claims.(10) marks. 2.b. Provide

165. ## life orientation

critically discuss 5 ways in which the human or environmental problem impacts on the community.provide relevent sources to support your claims

166. ## English

When one buys insurance, you need to be clear about your needs Pronoun shift in number Pronoun shift in person Ambiguous reference No error

167. ## calculus

Given ensuing information, determine the least cost and the least cost mix of on- and off-shore pipe. -The intake facility is in the water 2 miles vertically north of the shoreline -The water filtration plant is on land 1 mile vertically south of the

168. ## Physics

The roller coaster starts with a velocity of 16 m/s. One of the riders is a small girl of mass 26 kg. Find her apparent weight when the roller coaster is at locations B and C. At these two locations, the track is circular, with the radii of curvature

169. ## Math

I have a question that i've worked through but can't seem to figure out how to converge it to kg. A trail mix contains a 4: 7 ratio of raisins to peanuts. How many kilograms of raisins are there if there are four kilograms of peanuts in the mix? 4/7 X x/4

170. ## math

integrate (x^2 + 2x + 5) / (x - 2)

171. ## Spanish

The 1st Sentence is me trying to do the work and the second is the actual paragraph. I am trying to put the verb form into preterite or imperfect can you see if i am right? Thanks erase una vez una nina hermosa que se llamaia Capercuita roja todos los

172. ## math

It has been found that the average IQ score of students is 115 with a stanard deviation of 6. Find the probability that a random selected student will have an IQ score above 119. Assum the IQ scores are normally distributed.

173. ## social studies

why might the usa see strategy in the pacific islands?

174. ## life orientation

5 ways in which the human or environmental problem impact on the community on Hiv&aids

175. ## PreCalc

If tan theta = 9/5 and cot omega = 9/5 Find the exact value of sin (omega-theta)

176. ## How do you submit your URL?

I'm trying to post a question. But they have graphs on them. But I can't submit the graph on the question because it doesn't allow it? Why is that.

177. ## Math

12. 8 divided by 4/5=10 16. 9/10 divided by 3/4=36/30 18. 15 divided by 5/9=27

178. ## math

Given that a sports arena will have a 1400 meter perimeter and will have semi- circles at the ends with a possible rectangular area between the semi-circles, determine the dimensions of the rectangle and semi-circles that will maximize the total area.

A bond has a \$1,000 par value (face value) and a contract or coupon interest rate of 10.1%. The bonds have a current market value of \$1,126and will mature in 10 years. The firms marginal tax rate is 34%. The cost of capital from this bond debt is ____%

180. ## Math

Cantaloupe is priced at \$0.69 per pound. If a cantaloupe weighs 3.241 pounds, how much will it cost? Round to the nearest cent.

181. ## calculus

16. Given the following information, determine the constant speed, travel time, and cost that represent the minimum one-way trip delivery cost. Fuel costs per hour are equal to V^2/600 V is the speed in miles per hour Driver (labor) costs are \$10 per hour

182. ## WorldHistory

This isn't the paper. But, it's 3main topics I think are the significate conquences. significant consequences of the Agricultural Revolution -Technology -Population -Weather

183. ## Math

Picture is 12 inches high, frame is 3/4 of an inch wide at all points, how many inches high are the picture and the frame together?

184. ## english

In the text box provided below, type the research report according to the guidelines below. You must submit both your first draft and final versions. Remember that an adult must review your first draft and provide constructive criticism. Assignment: A

185. ## calc

15. Given ensuing information, determine the least cost and the least cost mix of on- and off-shore pipe. • • • • The intake facility is in the water 2 miles vertically north of the shoreline The water filtration plant is on land 1 mile vertically

186. ## Physics help

A motorbike starts from rest at time t=0 and begins to accelerate around a circular track as shown in the figure below. Eventually, at time t=t1 the motorbike reaches the maximum velocity possible without slipping off the track. What's the minimum length

187. ## Physics help

You are watching a marching band practice outdoors. Near you are two trumpet players, one marching directly towards you and one away from you at the same speed. Each trumpet player is playing an A (440 Hz) and you hear a beat between the two sounds at a

188. ## Finance

Calculate the future value of \$5000 given that it will be held in the bank for 6 years and arn an annual interest rate of 7%.

189. ## Physics Help

Consider a glass with full of water of mass density ρ=1,000 kg/m3 and height h=20 cm. There's a circular hole in the bottom of the glass of radius r. The maximum pressure that pushes the water back into the hole is roughly (on the order of) p=σ/r, where

190. ## MATH

Solve the differential equations? (calculus) a) square root cotany/ (1+x^2)sin^5y dy/dx = e^x^3 +3x/ square root cotany b) y^2/cosx dy = e^sinx/ e^y^3-1 dx

191. ## physics

An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same

192. ## Maths Help

A,B,C,D,E,F are 6 consecutive points on the circumference of a circle such that AB=BC=CD=10,DE=EF=FA=22. If the radius of the circle is √n, what is the value of n?

193. ## english

A lorry has shed its load of fruit on the motorway.The traffic is a standstill.No one has been hurt. How to write a headline for this report?

194. ## Algebra

Square root 18 + (3/square root 2)

195. ## Math Help

Two points are chosen uniformly at random on the unit circle and joined to make a chord C1. This process is repeated 17 more times to get chords C2,C3,…,C18. What is the expected number of pairs of chords that intersect?

196. ## Probability

The spinner has 6 sections 2 of which are 2. The spinner is now spun until it stops on a section numbered 2. The probability that this happens on the nth spin is 16/243. Find the value of n.

197. ## maths

find the place value and value of the 5 in the number 643.758

198. ## Math Help

Four players are playing a game involving choosing positions on a grid of size 3×8. Each player chooses a random position on the grid, then all players reveal their choices and a token is placed on each of the positions. The probability that the tokens

199. ## ENGLISH

15. Which of the following sentences contains a verb in the simple past tense? A. Jenna has driven this route multiple times. B. I was working overtime for about six months. C. We helped Joan to pack her things. D. She would like to join us. I THINK ITS C

200. ## Math

Adam can run a lap on a certain circular track in 50 seconds. Grampy Sampy can run a lap on this track in 90 seconds. They start at the same location at the same time and move in the same direction. If they each run at a constant speed, how many seconds

201. ## Math

Ruthie has 10 coins, all either nickels, dimes, or quarters. She has N nickels, D dimes, and Q quarters, where N, D, and Q are all different, and are each at least 1. Amazingly, she would have the same amount of money if she had Q nickels, N dimes, and D

202. ## agriculture

what are the objectives of fencing a farmland?

203. ## math

game show 6 blocks 3-blue worth \$5,2-red blocks worth \$10, and 1-yellow block worth \$50. Suppose 24 contestants choose and replace a block. How much money can the game show expect to pay out?

204. ## Math

Having a problem writing an expanded number in notation in descending order. Ex. 92,563,174. I know the placements and the number but have a problem when it comes to write it. Can you please help. I would appreciate an example so much.

205. ## math

A cubiod has a lenght 13cm wit 9cm and height 8cm calculate surrface area

206. ## statistics

12 squirrels were found to have an average weight of 10.5 ounces with a sample standard deviation is 0.25. Find the 95% confidence interval of the true mean weight

207. ## Ms.Sue

Ms.Sue, do you know how to do calc?

208. ## math

A cubiod has a lenght 13cm wit 9cm and height 8cm calculate surrface area

209. ## math

the probability that a radomly chosen potential customer will make a purchse is 0.20if a sales man calls on 6 customers .what is the probabilty they will make exactly 4 sales

210. ## pre calc

how do u solve for x and y of x+2y=7 2x+y=8 using matrix without using a calculator

211. ## trig

The angle of depression as measured from the top of a 41 foot tower to a reference point on the ground is 65 degrees. How far away, to the nearest foot, is the reference point from the base of the tower?

212. ## Math

Spent 6 hrs at school, spent 2/3 of an hour at lunch, 2/3 of an hour at an assembly, rest of the time in class, how much time was spent in class

213. ## Math

The admission ticket of an amusement park is \$50 per head, and there is a 30% discount for a group of equal or over 30 people. What is the minimum size of a group that would rather buy the 30 people group tickets, as that is the cheaper option?

214. ## science

there is technology day celebration in our school. I have to give a speech on a new technology that has developed recently and very rarely known. Please give me some ideas.

215. ## Math

If (8+√19)/(8−√19)=(a/c)+[(b/c)*√19], where a and c are coprime positive integers, and b and c are coprime positive integers, what is a+b+c?

216. ## English

Dave hoped that Steve and ____ would win the tennis tournament Him Himself He His

217. ## chemistry

Consider the polymer polybutadiene. (a) Will linear polybutadiene or branched polybutadiene have a higher molar volume? (b) Will linear polybutadiene or branched polybutadiene have a higher glass transition temperature? (c) Will linear polybutadiene or

218. ## Math

1/3 of plants on sale, of the plants on sale, 1/4 are rose bushes, 1/6 are spider plants and 1/6 are lilies, what fraction of the plants are discounted rose bushes, spider plants, or lilies

219. ## US History

What were the effects of Reagans increased spending on US defense to counter Soviet threats?

220. ## Math

The surface area of a bucket is 6,176cm^2. What is the surface area of a similar bucket that is smaller by a scale of 1/4?

221. ## Us history

What does this mean, "Franklin was to the United States as bacon was to England" please help thanks.

222. ## chemistry

please i need example of hno3 cuo

223. ## calculus

A kite with a string 80 feet long makes an angle of elevation of 40 degrees with the ground, assuming the string is straight how high is the kite? round your answer to the nearest foot

224. ## Math

The volume of a cone is 316in^3. What is the volume of a similar cone that is larger by a scale of 3?

225. ## chemistry

if the endpoint in the tritration of the KHC8H4O4 solution with the NaOH solution is mistakenly surpressed(too pink),will the molar concentration of the NaOH solution be reported too high or too low?explain

226. ## US History

What theory was President Reagan's economic program based on?

227. ## Maths

The number 1000 can be written in several ways as a sum of one or more consecutive positive integers, for instance, 1000=1000 (one summand) or 1000=198+199+200+201+202 (five summands). Find the largest possible number of summands in a representation of

228. ## Algebra

A test consist of 15 multiple choice questions, 12 true-false questions and 10 fill in the bland questions. you got 8 questions wrong. what percent of the answers were correct?

229. ## Maths

How many 3 digit numbers can be formed from the integers1,2,3,4,5 if digits can be repeated?

230. ## life orientation

identify one enviromental or human factor that causes ill health, accident crises, and disaster within your community

231. ## Grammar

For each of the following sentences, choose the correct pronoun from the pair given in parentheses. 1. We are going to play stickball in the street. (Who, Whom) would you like to play first base? 2. The best pitcher would be (who, whom)? 3. (Who, Whom)

232. ## Math

DVD player 17 inches wide, protected by 3/4 inch of foam, placed in a carton that is 1/8 of an inch, how wide is the carton?

233. ## US History

Why did President Reagan aim to reduce government regulations?

234. ## calculus

Given ensuing information, determine the least cost and the least cost mix of on- and off-shore pipe. The intake facility is in the water 2 miles vertically north of the shoreline The water filtration plant is on land 1 mile vertically south of the

235. ## maths

The magnitude of an earthquake with intensity I is measured using a seismograph. The intensity I is converted into the Richter scale number using the following formula R=log10I. An earthquake in Town A was measured 3 on the Richter scale, while the

236. ## math

Let AB be the diameter of circle Γ1. In the interior of Γ1, there are circles Γ2 and Γ3 that are tangent to Γ1 at A and B, respectively. Γ2 and Γ3 are also externally tangent at the point C. This tangent line (at C) cuts Γ1 at P and Q, with PQ=20.

237. ## Physics sorry for reposting but I really need help

An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same

238. ## maths

Proof this identities. (a) sin x cot x = cos x

239. ## maths

The squares of a 3×3 board are randomly coloured black or white. Let W be the number of white squares and B the number of black squares. The expected value of |B−W| can be expressed as ab where a and b are coprime positive integers. What is the value of

240. ## Soc Stu 9

A union is a group of worker who band together to have a better chance to obtain higher pay and better working conditions. Using this definition of a union, what are some examples of the first Unions formed? I search all over the internet, and it's not in

241. ## calc

Integrate 1/(ln(x)); f(e^e)=1 please provide step! confused because of f(e^e)!

242. ## maths

ABCD is a rectangle with AB=26, BC=11. X, Y and Z are points on AB, BC and CD, respectively, such that AX=BY=CZ=6. What is the area of triangle XYZ?

243. ## maths-urgently needed

When a number is divided by 7 and 9 , the remainder is 4 and 3. what will be the remainder of a same no. when it is divided by 37.

For a parameter a, suppose u is the smallest positive real number such that 100cos^2u−100sin^2u=a+25 and v is the largest negative real number such that 25√3sinv−75cosv=a. For how many integer values of a is u+v non-negative?

245. ## maths

Solve this equation. 3^2x - 3^x+2 = 3^x - 9

246. ## maths

Solve this logarithmic equation. 3 log 2 base x + log 18 base x = 2

247. ## maths

Solve this logarithmic equation. 3 log 2 base x + log 18 base x = 2

248. ## maths

solve this equation. log (2x + 1) base 2 = -3

249. ## probability

According to genetic theory, plants of a particular species have a 25% chance of being red-flowering, independently of other plants. Find the normal approximation to the chance that among 10,000 plants of this species, more than 2400 are red-flowering.

250. ## calculus

Hi i have two questions: what is the exact value of cos 5(pie)/12? what is the exact value of cos2(pie)/9 cos(pie)/18 + sin2(pie)/9 sin(pie)/18? thank you

251. ## chemistry

11.During an acid-base titration, 25 mL of NaOH 0.2 M were required to neutralize 20 mL of HCl. Calculate the pH of the solution for each of the following: 12.Before the titration. 13.After adding 24.9 mL of NaOH. 14.At the equivalence point. 15.After

252. ## Math

This is gr 12 calculus btw I need helping in filling in the blanks/ -the angle formed at the centre of the circle by two radii is the _______ angle. -cos delta, sin delta, tan delta are known as the ___________trigonometric ration -cos (pie/2 - x)=sinx is

253. ## statistics

According to CreditReport, the mean credit score in Georgia for 2007 was 668. Suppose that a hypothesis test is conducted to determine whether the mean credit score in Georgia has decreased since that time. Describe what a Type I error would mean in the

254. ## Math

9. 5/6 divided by 1/3 11. 1/2 divided by 3/5= 5/6 13. 7/12 divided by 5/6=42/60=11/15

255. ## statistics

2. We would like to test whether the population mean is less than 40. Suppose that a hypothesis test is conducted to determine if the mean of the population has decreased or not. Describe what a Type II error would mean for this example. A) Reject H0 when

256. ## life orientation

3 environmental health hazards that cause ill health , crises and or disasters within your community or elsewhere in south Africa and globally

257. ## WorldHistory

Human Origins Essay Significant consequences of the Agricultural Revolution; There are multiple consequences from the Neolithic Agricultural Revolution. It created a drastic increase in population, it was the beginning of domesticating animals, and new

258. ## math

A ship leaves a port at 12:00 Noon and sails East at speed of 10 miles/hour. Another ship leaves the same port at 1:00 PM and sails North at a speed of 20 miles/hour. At what time are the two ships going to be 50 miles apart from each other? (Hint:

259. ## statistics

The National Coalition on Healthcare suggests that the mean annual premium that a health insurer charges an employer for a health plan covering a family of four averaged \$12700 in 2008. A sample of 30 families of four yield a mean annual premium paid by

260. ## C/J

The role of the defense attorney is to: A. decide the innocence of the accused. B. get his or her client off by whatever means. C. give the client every resource available to defend himself or herself within the limits of ethics and law. D. act as a legal

261. ## math

A ship leaves a port at 12:00 Noon and sails East at speed of 10 miles/hour. Another ship leaves the same port at 1:00 PM and sails North at a speed of 20 miles/hour. At what time are the two ships going to be 50 miles apart from each other? (Hint: