# Questions Asked onMay 4, 2011

1. ## math

rewrite the series in sigma notation 4+16+64+...+256+1024

2. ## science

calculate the momentum of 2.5 kg puppy that is running with a velocity of 4.8 m/s south

3. ## Chemistry

How many liters of Chlorine at STP will react with 35L of 02 at STP given the following reaction? 2Cl2(g) + 7O2(g) - 2Cl2O7(l)

4. ## chemistry

a patient receives 250 mL of a 4.0% (m/v) amino acid solution twice a day. a) how many grams of amino acids are in 250mL of solution? b) how many grams of amino acids does the patient receive in one day? For a) I came up w/10g and for b) I came up w/ 20g

5. ## Pre-Algebra

1. Determine which set of three numbers could represent the sides of a right triangle. a. 9, 41, 41 b. 9, 40, 41 c. 8, 41, 40 d. 10, 40, 42 is the answer b? 2. Determine which set of three numbers could not represent the sides of a right triangle. a. 3, 4,

6. ## Physics

A simple pendulum suspended in a rocket ship has a period To. Assume that the rocket ship is near the earth in a uniform gravitational field. Determine for each of the following statements whether it is correct or incorrect. If the length of the pendulum

7. ## investing

You have a \$ 2 million portfolio consisting of \$100,000 investment in each of 20 different stocks. The portfolio has a beta of 1.1. You are considering selling \$100,000 worth one stock with a beta of 0.9 and using the proceeds to purchase another stock

8. ## chemistry

How many joules are required to convert 16.5 g of ice at 0.0°C to liquid water at 32.0°C? The heat of fusion of water is 334 J/g.

9. ## Math

The distance a spring stretches is directly proportional to the force applied to the spring. A 4-lb weight stretches a spring 20 in. A 16-lb weight stretches a spring 26 in. Find the length of the spring with no weight attached.

10. ## precalculus

A Ferris wheel has a radius of 35 feet, and is rotating at 5 revolutions per minute. Find the linear speed, in feet per minute, of a seat on the Ferris wheel.

11. ## algebra

The height above the ground of a ball thrown up with a velocity of 96 feet per second from a height of 6 feet is 6+96t-16^2 feet, where t is the time in seconds. According to this model, how high is the ball after 7 seconds? Explain (Thank you in advance!

12. ## chemistry

1) If a total of 13.5 mol NaHCO3 and 4.5 mol of C6H8O7 react, how many moles of COs and NA3C6H5O7 will be produced? 3NaHCO3(aq) +C6H8O7(aq) -> 3CO2(g) + 3H2O(s) + Na3C6H5O7(aq) 2) If 8,00 mol of NH3 reacted with 14.0 mol of O2, how many moles of H20 will

13. ## physics

If 1200 cal of heat are added to 50 g of water initially at a temperature of 15 oC, what is the final temperature of the water?

14. ## english

Write a sentence containing a gerund; CAPITALIZE the gerund. Then, tell how the gerund is used (subject, direct object, subject complement, object of preposition, indirect object). please help me start off or explain how to do this i don't get it at all

15. ## chemistry

A student needed to make 200 ml of 0.1 M naOH. If the stock soluton was 0.75 M, how much of the stock solution and how much wter would be needed to make this solution?

16. ## Chemistry

"Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5 10-3, Ka2 = 8 10-8, and Ka3 = 6 10-10. Calculate [H+], [OH ‾ ], [H3AsO4], [H2AsO4‾ ], [HAsO42 ‾ ], and [AsO43 ‾ ] in a 0.14 M arsenic acid solution." Okay, so far, using successive

Goods versus Services. Fred and Zuma Palermo contacted Colorado Carpet Installation, Inc., for a price quotation on providing and installing new carpeting and tiling in their home. In response, Colorado Carpet submitted a written proposal to provide and

18. ## Chemistry

How many moles of O2 are present in 67.2 L of O2 gas at STP?

19. ## Chemistry

If 72.4 kJ of heat is applied to a 95.2 g block of metal, the temperature of the metal increases by 10.7 C. Calculate the specific heat capacity of the metal in J/g C?

20. ## Life orientation

Identify one evironmental or human factor that causes ill health, accidents and disasters in south africa? *in 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts in south africa.

21. ## chemistry

A 10.0-mL sample of vinegar, which is an aqueous solution of acetic acid, CH3COOH, requires 16.5 XML of a 0.500M NaOH solution to reach the endpoint in a titration (where the moles of acid are equal to the moles of base). What is the molarity of the acetic

22. ## social studies

what landform dominates much of Latin America , especially South AMerica?

23. ## chemistry

a 1.04 l sample of gas at 759 mm hg pressure is expanded until its volume is 2.24 l. what is the pressure in the expanded gas sample at constant temperature

24. ## Physics

A cylindrical diving bell 4.0m tall, with an open bottom, is lowered to the bottom of a lake on a day when atmospheric pressure is 100 kPa. It is observed that water rises inside the bell to within 1.0m of the top. A)What is the pressure of the air trapped

25. ## Integrated Physics and Chemistry

In a four-stroke internal combustion engine, the gas vapor/air mixture is pressurized during the ____ stroke. compression power intake exhaust

26. ## Statistics

Volume 3 1 Abstract Medication errors are a significant issue affecting patient safety and costs in hospitals often posing dangerous consequences for patients. It is important to understand that an analysis of medication errors can help healthcare

27. ## chemistry

what is the reagent responsible for the formation of hydrogen sulfide?

28. ## MATH :)

3. In Biology, it is found that the bacteria in a certain culture double every half-hour. If the initial number of bacteria in culture is 1000, A. Find the defining equation for the number N of bacteria in culture after T hours, assuming that no bacteria

29. ## math

There are 4 seats in each row of a bus except the last row, which has 5 seats. The total number of seats can be written as 5 + r x 4. Determine the number of seats in a bus for each value of r.

30. ## career development

I am trying to write a personal mission statement for a medical assistant. for a careeer development class. Can you help me write one.

31. ## probability

probability of removing 13 cards from a deck and having them all be red

32. ## precalculus

Find an angle between o and 2pi that is coterminal with the given angle -8pi/3: 71pi/2: 11pi/7:

33. ## math

What unit of measurement would be used to measure around a playground and why? I think either yards or feet. Leaning toward yards but don't know why, please help. Or feet because of greater distance --I rally don't know. Help please!

34. ## geometry

Jackson is creating a water garden surrounded by a triangular patch of grass. If the pond will take up the space indicated by the circle, how many square feet of sod will he need to complete the garden (use 3.14 for and round your answer up to the next

35. ## math

Alice is in a carpool with Sid, Raymond and Lucy. Sid will only sit beside his wife. Lucy won't sit in the front seat if her husband drives. Alice never sits in the front. The car seats only 2 in the front and 2 in the back. Who drives on Tuesday?

A share of perpetual preferred stock pays an annual dividend of \$6 per share. If the investors require a 12% rate of return, what should be the price of this preferred stock? a. \$57.25, b. \$50.00, c. \$62.38, \$46.75, e. \$41.64. I chose b. \$50 because \$50 x

37. ## Physics

Three charges are arranged in an equilateral triangle with sides of 4 cm. The coordinates and corresponding charge values are as follows: +4q at (-2,0); +2q at (2,0); -q at (0,3.464). The elementary charge of an electron is given by q = -1.602 x 10^-19 C.

38. ## english

Write a sentence containing a gerund; CAPITALIZE the gerund. Then, tell how the gerund is used (subject, direct object, subject complement, object of preposition, indirect object). please help me start off or explain how to do this i don't get it at all

39. ## chemistry

Which of the following are properties of basic solutions? a.They turn the dye litmus red. b.They taste sour. c.They feel slippery. d.They react with active metals to produce hydrogen gas.

40. ## Math simple question

angles 1 and 2 are adjacent angles on a line. What is the sum of the measures of the angles? a.30 b.60 c.90 d. 180 I think the answer is b.

41. ## Chemistry 12

Is O2(g) O2(aq) an endothermic/exothermic reaction, and why?

42. ## Accounting

Greenwood Corporation has paid 60 consecutive quarterly cash dividends (15 years). The last 6 months have been a real cash drain on the company, however, as profit margins have been greatly narrowed by increasing competition. With a cash balance sufficient

43. ## Physics

If 7.00hp are required to drive a 1500-kg automobile at 66.0 km/h on a level road. What power is necessary to drive the car at 66.0 km/h down a 1.00 % grade? It requires 42.9 hp to drive the car at 66.0 km/h up a 10.0 % grade (a hill rising 10.0 m

44. ## physics

what is the diameter if a 1.00m tungsten wire whose resistence is 0.22 ohms?

if the break-even point in dollar sales for a company is \$360,000 and the company's contribution margin ratio is 30% and the company expects a profit of \$84,000, what would the sales have to total?

46. ## psychology

please check my answers...and help me if i got wrong Thanks According to social psychology, what terms are being described in the situations below? Social Facilitation Social Loafing Group Think Deindividuation 1-The newscaster reported that a vehicle

47. ## physics

what is the magnitude and direction of the electric field 20.0 cm cm directly above an isolated 33.0 10 neg6 c charge?

48. ## math

For the numbers from 100 through 199, how many have different digits in increasing order?

49. ## math

Katie converts the outside temperature from degrees fahrenheit, f, to degrees celsius, c. She uses the formula below to convert the temperature. (F-32)5/9=c if the outside temperature is 50 degrees fahrenheit, what is the outside temperature in degrees

50. ## Math

A boat moves 7 kilometers upstream in the same amount of time it moves 17 kilometers downstream. If the rate of the current is 9 kilometers per hour, find the rate of the boat in still water.

51. ## Algebra

Solve. Please show the algebraic inequality you used and show all of your work. Stephanie has the following scores on her algebra tests: 85, 92, and 71. What score must she earn on her fourth test in order to have an average of 80 or above?

52. ## physics

How many mL of orange juice would be required to get the recommended daily allowance of 60 mg of vitamin C? (Concentration of vitamin C is .011 moles/L in 5.0 mL of juice).

53. ## math

A farmer has 200 acres of land suitable for cultivating crops A, B and C. The cost per acre of cultivating crop A, crop B and crop C is \$40, \$60 and \$80, respectively. The farmer has \$12,600 available for land cultivation. Each acre of crop A requires 20

54. ## HW Entropy Question

Sodium carbonate can be made by heating sodium bicarbonate: 2NaHCO3(s) ¨ Na2CO3(s) + CO2(g) + H2O(g) Given that ƒ¢H‹ = 128.9 kJ/mol and ƒ¢G‹ = 33.1 kJ/mol at 25‹C, above what minimum temperature will the reaction become spontaneous under

55. ## chemistry

A solution made from 19.0 g of NaBr and 500 mL of water has what molarity?

56. ## maths

A piece of wire when bent in the form of square encloses an area of 484cm sq.now if the same wire is bent in the form of circle area enclosed by it would be

5xy^2 + 15x^2y^2 - 25xy^2 + 65x^2y^2 = 10x^2y^2 + 45xy^2 Factor out the GcF of each polynomial in the equation

58. ## Career developement

mission statement for medical assistant

59. ## physics

A massless spring with spring constant 16.7 N/m hangs vertically. A body of mass 0.220 kg is attached to its free end and then released. Assume that the spring was unstretched before the body was released. How far below the initial position does the body

60. ## geometry

in angle DEF, DF equals 16 and F equals 26. Find FE to the nearest tenth.

61. ## chemistry

If Na has a mass of 23, and Cl a mass of 35, how many grams of NaCl are added to water to make one liter of a 3M solution?

62. ## science

a crane does 62,500. J of work lifting a 120.-N backpack? a. How high did you lift the backpack? b. How much did the backpack weigh in pounds? (Hint: There are 4.448 N in one pound.)

63. ## Chemistry

Neutrons are more effective than protons or alpha particles for bombarding atomic nuclei. Why?

64. ## math

Renee must solve the equation 4x+12=6x. If she subtracts 4x from the left side of the equation, what should renee write on the right side of the equation?

65. ## math

a basketball player makes her foul shots 1/3 of the time on average P(makes next two foul shots)

66. ## math

carol wants to earn at least \$150.00 for her charity while running in a race. she will earn \$20.00 for participating plus \$7.00 for each mile she runs. if m represents the number of miles shre runs, which inequality represents the money carol wants to

67. ## Math

If an object is rotated clockwise 130° around a center and then counterclockwise 75° around the same center, what is the angle between the original image and second image?

68. ## Geography

You want to eventually own a ranch of several thousand acres and raise 20,000 head of cattle. You are considering establishing the ranch in Haiti. Would you likely be able to buy enough land for your ranch? Explain your answer.

69. ## calculus

Suppose y is defined implicitly as a function of x by x^2+Axy^2+By^3=1 where A and B are constants to be determined. Given that this curve passes through the point (3,2) and that its tangent at this point has slope -1, find A and B.

70. ## The Metis

They were natives, and most of these native women got married to fur traders that worked for the NWC, as the NWC thought the loyalty of the Natives for them would increase, and the Natives thought it would be an advantage towards their living as well.

71. ## chemisry

8. Write the structural formula of organic product that would result from the reaction: CH3—CH=CH2 + H2O->.

72. ## English

I forgot to include the following sentences. Thank you. 1) The story is told by a third-person narrator. Eveline’s point of view is adopted throughout the story. The narrator opens in medias res and employs free indirect thoughts. 2) Eveline appears

73. ## Science

If one object on the moon weighs 42 pounds how much would it way on earth? Why?

74. ## Statistics

Suppose the mean height of a population is 65 inches with a standard deviation of 1.5 inches. What is the z value for a height (x) of 67 inches?

75. ## statistics

Government Data assign a single cause for each death that occurs in the United States. The data shoe that the probability is 0.27 that a randomly chosen death was due to heart disease, and 0.23 that is was due to cancer. What is the probability that the

76. ## Physics

Halley’s comet orbits the Sun with a period of 76.2 years. a) Find the semi-major axis of the orbit of Halley’s comet in astronomical units (1 AU is equal to the semi-major axis of the Earth’s orbit).

77. ## physics

A wagon is being pulled with the handle of wagon that makes a 29 degree angle with the ground. A force of 33 Newtons is extended along the handle. What are the horizontal and vertical components?

78. ## math

jordon has \$608 in his savings account. He withdraws 15% of the money to pay for school clothes. which is the best estimate for the amount of money jordon withdraws?

79. ## Chemistry

What is the theoretical yield of PbI2 with 25.0 g of Pb(NO3)2?

80. ## Physics

A fish at a pressure of 1.1 atm has its swim bladder inflated to an initial volume of 8.16 mL. If the fish starts swimming horizontally, its temperature increases from 20.0 degrees Celsius to 22.0 degress Celcius as a result of exertion. A)Since the fish

81. ## Geography

You need to open a new clothing factory to keep up with the demand for your clothing in the United States. You have looked into building the factory in Trinidad and Tobago. Would your factory likely be able to find enough workers? Explain your answer.

82. ## physics

The summit of a mountain, 2550 above base camp, is measured on a map to be 4880 horizontally from the camp in a direction 35.4 west of north. Choose the axis east, axis north, and axis up.

If the sum of 1! + 2! + 3! + 4! + ... + 49! + 50! is divided by 15, what is the remainder?

84. ## calculus

Evaulate ∫5sinx+cos(5x)dx

85. ## maths

Q1) Find area of the triangle ABC where AB=c, AC=b and BC=a. When a=b=c=12m

86. ## geometry 2

Xenia is ordering a cake for her friend’s wedding. She knows that there will be 110 guests at the wedding, and she is trying to decide how large a cake to order. She has been told that each guest should get a piece of cake that is 4 inches by 4 inches.

87. ## chemistry

freezing point and boiling point of 12g or glucose in 50g of water

David Faria orally agress to sell his house in Cleveland, Ohio, to Marie Ellis for \$95,000. Ellis immediately sells her house in Nevada, gives up her job, and moves her belongings to Cleveland. Faria refuses to sell Ellis the house. 1. Would this sale deal

89. ## Math

Two rectangles are similar and the ratio of their sides is 1: 4. Find the ratio of their perimeters??? Find the ratio of their areas??? How do I do this?

90. ## math

using only whole numbers, how can you draw three rectangles with a perimeter of 12 units?

91. ## Microeconomics

I'm just confused about this one concept. My lecture notes say the following: Markets for goods + services: - firms sell - households buy Markets for Factors of Production: - Households sell - Firms buy I don't understand the "factors of production". What

92. ## chemistry

a)what is the name and molecular formula of the reagent responsible for the formation of the nickel complex ions? b)What is the color of this complexation?

93. ## maths (mensuration)

The area of an equilatoral triangle ABC is 50cm^2 . Find AB.

94. ## math

At approximately what rate would you have to invest a lump-sum amount today if you need the amount to triple in six years, assuming interest is compounded annually?

95. ## CHEM

An atom at the face of a unit cell is shared by how many unit cells? 1 2 4 6 8

The two boxes are similar rectangular prisms. what is the height of box B. I figured out the volume of the smaller box first now what do I do?

97. ## Math

The square root of 27b^11 Can someone explain to me how to solve this?

98. ## math

In solving the equation (x + 4)(x – 7) = -18, Eric stated that the solution would be x + 4 = -18 => x = -22 or (x – 7) = -18 => x = -11 However, at least one of these solutions fails to work when substituted back into the original equation. Why is

99. ## physics

TRIAL 1 A. ) Bag A + 6 stones Mass (kg) - 0.037 kg Mass of weight hanger + slotted weights - 210 g/ 0.21kg Tension 1 (N) - ?? Acceleration (m/s2) - ?? B. ) Bag B + 4 stones Mass (kg) - 0.08 Mass of weight hanger + slotted weights - 210 g/ 0.21kg Tension 1

100. ## English

Hello, i'm writing an essay about how truth should be told because it will help materialize solutions to problems and difficulties, etc. Can you please help me start my introduction? I want to start it really interestingly but nothing really comes in

101. ## FRENCH-Sentences

1. Nous sommes arrivés à un champ où nous avons joué le jeux de golf. 2. Nous sommes allés à restaurant et nous avons mangé chinois nourriture. 3. Nous sommes allés au zoo et nous avons nourri des animaux. 4. J'ai fait un gâteau pour ma cousine et

102. ## american government

What is the difference between civil liberties and natural rights?

103. ## Math

An environmental survey contained a question asking what respondents thought was the major cause of air pollution in this country, giving the choices “automobiles,” “factories,” and “incinerators.” Two versions of the test, A and B, were used.

104. ## chemistry

The compound X2C is a very hard substance commonly used to coat metal cutting tools to make them sharper and more resilient. Carbon represents 3.2% of the compound. what is the element represented by X.

105. ## algebra

The sum of the squares of two consecutive odd integers decreased by the product of the integers is the same as sixty-seven.

106. ## Physics

A fossil-fuel power plant that generates 1000MW of electrical power discharges 1600MJ per second as waste heat into the river. A)At what rate(in MW) is thermal energy obtained fromt the burning of coal? B)What is the thermal efficiency(power output/heat

107. ## Geometry

A gallon of paint costs \$20 and covers 465 square feet. Three coats of paint are recommended for even coverage. The room to be painted is 12 feet high, 20 feet long, and 20 feet wide. How many gallons are needed to paint the walls?

108. ## Physics

The astronomical unit (AU, equal to the mean radius of the Earth’s orbit) is 1.4960E11 m, and a year is 3.1557E7 s. Newton’s gravitational constant is G=6.6743E-11 m^3kg^-1s^-2. Calculate the mass of the Sun in kilograms. (Recalling or looking up the

109. ## Government

How does the great compromise demonstrate the need for a balance of representation among the states?

110. ## grammar

How do you write 1234.567 in English word form?

111. ## MATH AND PHYSICS HELP HELP HELP HELP HELP

A particle P of mass m=1 moves on the x-axis under the force field F=36/(x^3) - 9/(x^2) (x>0). Show that there is a single equilibrium position for P and that it is stable. Find the period of small oscillations about this point.

112. ## dav

determine the concentrated of mohrs salt solution with the help of supplied n/10 kmno4 solution preparred?

113. ## English

Could you please check these sentences, please? Thank you. 1) It is evening and the action takes place in Eveline’s living room. Darkness and dust characterize the room. 2)In the past Eveline and the other children used to play and shelter by vigilance

114. ## Algebra 2

The first term in an arithmetic series is 7 and the 17th is 49. What is the 20th term?

115. ## English

Can you please check these sentences for me? I'm unsure about the word choice. 1)Joyce's "Dubliners" all the characters experience a sense of stagnation (paralyses) due to various reasons and are unable to break the chains that bind them. 2) Their

116. ## Chemistry--Solids

Silicon carbide forms which type of solid? molecular network ion-ion metallic THANKS!

117. ## Statistics

Suppose that heights of newborns are bell shaped with a mean of 6.8 pounds and a standard deviation of 1.3 pounds. What percentage of weights are: a) Below 6.8 lbs.? b) Above 8.3 lbs.?

118. ## economics

why is it difficulty to identify the turning points in economic activity until months after they occur?

119. ## Math

The square root of 27b 11 squared ( square root 27^11)

120. ## Chemestry

HELP!!!!!!A solution made from 19.0 g of Na Br and 500 ml of water has what molarity?

121. ## chemistary

Explain the words element compound and mixture. Identify which substances ara element compound and mixture

122. ## Stats

A certian company enjoyed 3.5% profits in year 1 over its revenue in Year 0. In Year 2, it enjoyed 5.75% profits over Year 1. In Year 3, it posted 1.25% profits over Year 2. What single, constant profit over this period of years would have produced the

Male: 60,63,65,70,66,80,85,73,79,80,83,85,81,76, 77,90,91,88,78,92 Females: 62,69,70,72,78,77,79,83,80,88,90,90,98,100, 66,67,65,63,69, 83 Can you hellp me I need to find: A) P value and the Z value of this data with a Alpha Value of 0.05.

124. ## accounting

The two accounts used to adjust the uncollectible accounts are. A) Uncollectible Accounts Expense and Allowance for Uncollectible Accounts. B) Accounts Receivable and Uncollectible Accounts Expense. C)Accounts Receivable and Allowance for Uncollectible

125. ## statistics

A random sample of n= 16 scores is selected from a normal distribution with a mean of u=50 and a standard deviation of q=10. A. what is th probability that the sample mean will have a value between 45 and 55? B. What is the probability that a sample mean

126. ## Algebra 2

n is 2 given that it is even directions: let n be a randomly selected integer from 1 to 20 find the indicated probability

127. ## Poetry

I need to change this poem to an iambic pentameter poem..Please HELP!!!! Love, unconditional, unbreakable, unmistakable . A beating within your heart unstoppable. The realistic magic ever so real, That you cannot explain but only feel. The warmth inside

128. ## Geometry

Find the surface area of a cylinder if d = 16 in and h = 5.8 in. Round to the nearest tenth.

130. ## college algrebra

Find the coordinates of the point of intersection of the graphs of y = x and y = 6

131. ## algebra help

(-2,2) (4,20) Find the value of x when y is 9.

132. ## English

Just a question. Thank you. I want to be sure that the sentence: "Don't talk about me as ancient" is wrong. It should have been formulated this way "don't talk to me as if I were ancient" which, however, is different from: "don't refer to me as ancient"

133. ## math

3 ones, 4tenths, 5 hundredths and 2 tens = ?

134. ## geometry

the given distance between the two points (0,2),(x,6),d = sq rt 52

135. ## english

The Garden of Love I went to the Garden of Love, And saw what I never had seen; A Chapel was built in the midst, Where I used to play on the green. And the gates of this Chapel were shut And "Thou shalt not," writ over the door; So I turned to the Garden

136. ## English Literature

Describe Charles Dickens' style of writing. I think includes diction and figures of speech used.

137. ## Math (stastiscs)

Male: 60,63,65,70,66,80,85,73,79,80,83,85,81,76, 77,90,91,88,78,92 Females: 62,69,70,72,78,77,79,83,80,88,90,90,98,100, 66,67,65,63,69, 83 Can you hellp me I need to find: A) P value and the Z value of this data with a Alpha Value of 0.05.

138. ## AED/205

I am working on my final for AED/205. The question is "Do students come in to class with a desire to learn or is it the teacher's job to foster a desire to learn?" I feel that when kids are younger they want to learn as they get older maybe not so much,

139. ## Algebra

Im having a hard time figuring out this problem: Use the function, y=-(x+1)^2 +2, to answer the following parts. Find the y-intercept y=-(0+1)^2 +2 y=-(1)^2 +2 y=-1+2 y=1 is my answer Find the x-intercept 0=-(x+1)^2 +2 0=-((x^2)+(1^2))+2 0=-x^2 - 1 + 2

140. ## Statistics

the scores of a standardized test are normally distribution with a mean of 312 and a standard deviation of 68. The bottom 40% of scores are designed 'Need improvement'. What is the cutoff score for those who 'Need improvement'?

141. ## MATHS

A ROOM WALL MEASUREMENT IS LENGTH 54FT,HEIGHT 11FT.HOW MANY SQUARE METERS OF TILES WILL COVER THE WALL? THE TILES SIZE IS 8/12CM .

142. ## Algebra

Simplify 8-5/8+1/2*6/9 and 9c^3+7c-(3c^3-12+c) and Use set builder notation: -14x-10(2p-3)=22-7(1-2p)

143. ## math

(4a^3 - 7a^2) - (8a^3 + 1a^2) Subtract = 4a^3 - 7a^2-8a^3 - 1a^3 = 4a^3 - 8a^3 - 7a^2 - 1a^2 = (4-8)a^3 - (-7 - 1)a^2 = -4a^3 - 8a^2 Is this correct?

5xy^2 + 15x^2y^2 - 25xy^2 + 65x^2y^2 = 10x^2y^2 + 45xy^2 Factor out the GcF of each polynomial in the equation

145. ## chemistry

if 5.00g of ethanol is added to 15.0g of water, what is the % concentration of ethanol in water? THANKYOU

146. ## calculus

f(x) = e^(sin(x))cos(x)

147. ## English

Thank you very much. I still have to check a few more things. I hope you can chec them. 1) Her personality lies in antithesis to those of her father and her fiancè. 2) She is submissive to her father's authority but at the time she is hard-working and in

148. ## economics

how does the study of economics helps you in decision making in your day to day activities

149. ## Geometry

Find the length of the prism if the volume is 565.6 feet. The prism is 4ft in height outside and 7 ft inside.

150. ## Chemistry

@ 20 degrees C is 6g CuSO4 in 25g of H2O saturated or unsaturated? How do I figure this out?

151. ## English

Hello. Do you think it's possible to use the phrase "as long as" in the meaning "because", for example: "I can't help him as long as (because) I don't know his problem." Or will it be understood as "while"? Thank you for your help.

152. ## algebra

Im having a hard time figuring out this problem: Use the function, y=-(x+1)^2 +2, to answer the following parts. Find the y-intercept y=-(0+1)^2 +2 y=-(1)^2 +2 y=-1+2 y=1 is my answer Find the x-intercept 0=-(x+1)^2 +2 0=-((x^2)+(1^2))+2 0=-x^2 - 1 + 2

Jordan spent \$6.37 on a book and \$1.23 on a magazine. How much did he spend all together? First estimate the costs and the totals. _____+______=______ Then use partial sums and solve. _____

154. ## geometry

The distance between (-3,-1) and (3,y) is sq rt45.Find y?

155. ## english language

ok when i misread sweet dreams to sweat dreams everyone started laughing... wat does it actually mean? can someone tell me please ;)

156. ## English

1.At what time should Jill and Amy's parents pick ___ up after the party? 2.As we approached the house, one of the dogs began to wag ___ tail. 3.Both of the horses jumped over the low fence between ___ coral and the field. 4.If you want to have a dog, you

157. ## software

A computer company gives a discount of 10 % on a new piece of software. If it makes a profit of 7%, what percent does the marked price exceed the cost price?

158. ## physics

Two equal masses m are place at positions r©û= (L, 2L, 3L) and r©ü= (3L, L ,2L). Calculate the moments of inertia Ix, Iy, Iz of the system with respect to the x, y, and z axes.

159. ## math

Find the foci for the equation of an ellipse: 2x^2 + 8x + y^2 + 4 = 0

160. ## Finance

Cash flows will be \$27.7 million, all coming at the end of one year. The land must be returned to its natural state at a cost of \$25 million, payable after two years. Compute the IRR for this project. Should the project be accepted if required rate of

161. ## math

if you spin the spinner 00 times will B be spun more times than A?

162. ## Quick Question

25s+25=-15s How do I go about solving this simple problem??*

163. ## probability

1) A secret admirer has been leaving you roses at the rate of 4/day. What is the probability that, on a given day, you will receive (a) exactly one rose (b) at least one rose? 2) Every student has a 1 in 9 chance of winning a certain prestigious

164. ## English

Hello. Please help me with the article in the sentence: "Protesters are accusing (?)the military forces of human rights abuses." Will the situation change if an adjectice is used, for example: "Protesters are accusing (?)the Yemeni military forces of human

165. ## english

can anyone explain what this quote mean? We lose sight of the fact that our digital tools are modeling reality, not substituting for it, and mistake its over-simplified contours for the way things should be. By acknowledging the bias of the digital towards

166. ## math

Male: 60,63,65,70,66,80,85,73,79,80,83,85,81,76, 77,90,91,88,78,92 Females: 62,69,70,72,78,77,79,83,80,88,90,90,98,100, 66,67,65,63,69, 83 Can you hellp me I need to find: A) P value and the Z value of this data with a Alpha Value of 0.05.

167. ## algebra

You have been put in charge of making pizza for the fundraiser. You are told to make the larger pizzas with a radius 3 less than twice the radius of the smaller pizzas. The difference in the area of the pizzas is to 24 pi. Find the radius of the smaller

The two accounts used to adjust the uncollectible accounts are. A) Uncollectible Accounts Expense and Allowance for Uncollectible Accounts. B) Accounts Receivable and Uncollectible Accounts Expense. C)Accounts Receivable and Allowance for Uncollectible

169. ## chemistry

how do I figure out if CO-2 is in a mixture of yeast, sugar and water?

170. ## Writing/Poem

Louisiana Swamps, Rivers, Lakes, and Ponds Crawfish, Shrimp, and Lobsters too Singing and Dancing to Jazz and Blues While traveling around on the bayous Taking pictures in front of Louisiana’s Capitols And riding aboard the U.S. Kidd Then going to have

171. ## chemistry

Why is the 6M NaOH solution diluted before titrating the vinegar sample? How might your results be affected if you used the 6M solution rather than the 0.3M NaOH?

172. ## freshman chem

if 5.00 g of ethanol is added to 15.0g of whater, what is the % concentration of ethanol in water??

173. ## sci 202

2. A hockey player is skating in a straight line at 1.5 m/s. He then increases his speed to 7 m/s in 3 s. What is his average acceleration during this 3 s?

174. ## Geography

You and your partner are considering opening eight new upscale department stores in Nicaragua. Would your stores most likely do well or fail in this region? Explain your answer.

175. ## math

Solve using the substitution method. Sh 3x + 24y = 24, 27x – 15y = -15 .

176. ## physics

My question is in the link below: img828.imageshack.us/img828/7386/physicsch3581.png

177. ## History

Do you think there should be some sort of qualification or education/knowledge required for an idea to become a social movement?”

179. ## math

What is the intersection of A and B? a (4,8,12,16) b (8,16,24)

180. ## math

NVM's preferred stock currently has a market price equal to \$80 per share. If the dividend paid on this stock is \$6 per share, what is the required rate of return investors would get from NVM preferred stock?

181. ## English

I forgot to include these very last sentences. Thank you very much! 1) In the past Eveline and the other children used to play and shelter watchfully against her father. (I can't understand this sentence, can you explain it to me?) 2) She remembers

182. ## Psych 230

What influence does culture have on personality? Do you see a persons reaction to something as separate from social experience or as a result of social experience? Which one of the four positions of the nature of traits do you agree with most and why?

183. ## Physics

If mass=100 tones, speed=8kn/s,height above ground=100km. What is the mass in kg?

184. ## chemistry

How do I prepare 2 L 0.1 M Hydrochloric acid from 6 M HCl ? Also how do I prepare .05 M NaOH solution from pellets? Thanks

185. ## Hypergeometirc Distribution

From a lot of 12 flares, 4 are selected at random. If the lot contains 4 defective flares *flares that will not fire), what is the probability that all 4 will not work? What is the probability that at most 2 will not work?

186. ## English

I left a few sentences out. I'm posting them now. I just would like to know if the word choice is correct. 1)Before her mother died, she had promised (to her) that she would keep the house (the home?) together as long as she could. 2)She is no longer (a)

187. ## English

I'm sending you the ones I need most. Thank you. 4) The sound of the street organ reminds her of the night that her mother died, and how her father had paid a street organ player to move off, and how he had cursed all the foreigners. 5) She sees her

188. ## calculus

∫sec 2x tan x dx

189. ## Special Education

Given at least 3 blocks of contrasting colors from the table and guiding 1 hand to hold the block and the other to pick up the block, Shimon will be able to pick up the biggest block with one hand, 4/5 trials. There is something wrong with the above

190. ## Geometry

Find the radius and diameter of the base of a cylinder if the surface area is and the height is 17.

191. ## Statistics

Hey everyone! For my Math Class I need a tally of EVERYONE from the ages 10 to 20 to say who there favorite singer is in the below. I need a lot of tallies to get a good grade. Also, This is NOT a DEBATE this is a real assignment for a REAL class. Thanks

193. ## modeling and equation solving

using a formla to relate variable quantities associated with the phenomena. a pizza place sells rectangular 18" by 24" pizza for the same price as its large round 24" diameter. if both are the same thickness which option gives you the most pizza for the

194. ## math

h(t) = -9.8t^2-10t + 250

195. ## Math

Is the square root of x^23 = x^11

196. ## pre algebra

An area has been reforested. After 5 years , one of the tree is 2 meters tall. After six more years, the same tree is 3.2 meters tall. name 2 ordered pairs that can be used to to graph the information?

197. ## Social Studies

Why has Smokey the Bear been popular for so long? What does he try to promote?

198. ## Math(Probability)

Students took n = 35 samples of water from the east basin of Lake Macatawa and measured the amount of sodium in parts per million. For their data, they calculated notation bar x= 24.11 and s^2= 24.44. Find an approximate 90% confidence interval for μ ,

199. ## English

Can you please tell me if it is correct? Write five things you have to do when at home and five you don't have to do.

200. ## Islam

One of the important teachings of Islam is to be truthful. It is no doubt relevant when dealing with people/society. However does it apply equally in the realm of our psychology & subsconscious mind? In Psychology,it is a well known fact that one can

201. ## science

a change in the state of matter caused by a change in heat or pressure

202. ## physics

Starting from rest, a 4.4 kg block slides 3.5 m down a rough 22.3o incline in 2.4 seconds. Determine the energy lost due to friction. (Hint: find the final kinetic energy and subtract that from the work done by gravity.) Enter your answer here: J

203. ## geometry

in elliptic geometry prove that the length of the summit of a saccheri quadrilteral is less than the base

204. ## Math

Cities A, B, C and D are equidistant. That is, B is d miles from A, C is d miles from B, and D is d miles from C. Suppose you travel 55 mph from A to B, 40 mph from B to C, and 50 Mph from C to D. What single, constant speed could you have traveled from A

205. ## Math(Probability)

An environmental survey contained a question asking what respondents thought was the major cause of air pollution in this country, giving the choices “automobiles,” “factories,” and “incinerators.” Two versions of the test, A and B, were used.

206. ## childhood and family development

Suppose that a preschool class has twelve students, among whom nine languages are spoken. If you were the teacher of this class, what would be your plan to help the children communicate with you and their classmates? What would you celebrate about this

207. ## math- check my answer

An internet investment company advertises that if you invest your money with them at 14%, compounded annually, they guarantee yo double your money sooner than you can imagine. Ignoring taxes, how long would it take to double your money at a simple rate of

The two accounts used to adjust the uncollectible accounts are. A) Uncollectible Accounts Expense and Allowance for Uncollectible Accounts. B) Accounts Receivable and Uncollectible Accounts Expense. C)Accounts Receivable and Allowance for Uncollectible

209. ## calculus

Find or evaluate the following integral. csc^2 3x dx

210. ## algebra

name 4 positive numbers less than 2

211. ## math

so i am in precalculus, we need to graph the !@#\$%^&tion using derivatives, maxima, intercepts and concavity. I am having trouble factoring cubics: for example: x^4-4x^3+16x --> x(x^3-4x^2+16)Now what? That is without calculator, how do you find the roots?

212. ## algebra

(1,-2) m=3 find the value of y when x is 14

213. ## trig

angle a is acute and sin = u. find the other five trigonometric functions in the terms of u.

214. ## Math

The squared root of a^2b^10

215. ## math

how much interest is earned on a principal of 600 invested at an interest rate of 16% for 1/4 of a year?

216. ## precalc

find the domain and range of the following as an inequality and interval notation. y=sqrtx-3 2: y=3x+5 3: y= 2/x-7 4; y=2+sqrt x

217. ## constitution

the police must have a __________ to search a person or his or her property

218. ## English

Hello. I will really appreciate some help. 1)Is it possible to use -ing after "targeted on": "The programme is targeted on improving..." 2)Which proposition is better (or possible)in the phrase "in/at the resort of Acapulco"? Thank you for all your help.

219. ## math

how can i find a situation to model with an equation?

220. ## probability

Hello, If mean is say 33 seconds and standard deviation under root of 10.45 then prob of less than 18 seconds results in Z = -4, but the tables for norm distribution don't have 4 in them.. how to get round this problem?

221. ## math

47 divide by 6

222. ## math

Solve 5 divide by 6 plus 1 divide by10

223. ## English

Hello. Please help me with the preposition in the following context: "They have been staying at/in the resort of ..." I think it's "at". Am I right? Thank you for all your help and attention.

224. ## English

Can you check these sentences for me, please? Thank you very much. 1)On the first day we started the journey all in the morning from Turin and we spent the whole morning (all the morning?) on the bus. 2) We first stopped in Lucca, where we had (or went

225. ## English

What would you say this line ment: I am the chosen no hand saves?

226. ## chemistry

Thanks, How many atoms are in a body-centered cubic unit cell??? a- one b- two c- four d- six e- eight

5xy^2 + 15x^2y^2 - 25xy^2 + 65x^2y^2 = 10x^2y^2 + 45xy^2 Factor out the GcF of each polynomial in the equation

228. ## Linear algebra

Use the properties of linear operations with vectors to show that for any vector a: -> 0a=0

229. ## Rational root theorem

X^3+5x^2-9x-45

230. ## Algebra 1 help, check please?

Okay, so the problem is.. x^2+6=13 Would I just subtract the 6 from the thirteen.. So. x^2=7 Divide by 2? I'm kinda stuck from that point

231. ## math

The cost of one burrito,b,and one taco,a, is less than the cost of two burritos. Which inequality represnts this relationship

232. ## English

I just wanted to know if all these sentences are possible. Thank you 1) The trip is going to last three days. 2) We are having breakfast and lunch at the hotel. We are free to have dinner where we want (how can I express this if it was part of a programme

233. ## geometry

how to solve y= (x-2)^2+4 4x+2y=14 algebraically

234. ## science , chemistry

Is lowering of vapour pressure also a colligative property? since mathematically p*a - pa/p*a=xa =>p*a-pa=p*aXa => p*a-pa~xa

235. ## Algebra

How do you graph 2 equations and then find the common area on the graph?

236. ## chemistry

the volume ratio between the two gases should have been exactly 2:1. What physical property of either gas might explain the difference between the observed ratio (before rounding) and the theoretical value?

237. ## calculus

f(x) = e^(sin(x))cos(x)

238. ## math

Express in terms of i.-(-496)

239. ## math

distribute. (8t-3)(t^2+2t+9

240. ## math

a penny has a mass about 3...

241. ## math (calculus)

you have 704m of fencing to enclose 3 adjacent plots(not the same size) you must use calculus to fine the dimensions for which the total area is as large as possible. Find the largest possible total area.

242. ## MAth

what is the difference between 16/1 and 1/16 as fractions ?

243. ## physics-Moment of Inertia

Two equal masses m are place at positions r1= (L, 2L, 3L) and r2= (3L, L ,2L). Calculate the moments of inertia Ix, Iy, Iz of the system with respect to the x, y, and z axes.