# Questions Asked onMay 23, 2014

1. ## Math

In this activity, you will design and conduct a survey. Choose a topic for your survey. 1. Collect your data. 2. Summarize the results with a graph and a description. When they say "Summarize the results with a graph," do they mean that I display the

2. ## algebra

An industrial chemist will mix two acid solutions. One is 37% solution and the other is a 27% solution. How many liters of each should be mixed to get 50 liters of a 36% acid solution?

3. ## Algebra II

The grades on the last math exam had a mean of 88%. Assume the population of grades on math exams is known to be normally distributed with a standard deviation of 6. What percent of students earn a score between 72% and 90%? (5 points) 0.6255 0.5843 0.6754

4. ## Statistics

Suppose the mean income of 35-year-olds in the US is \$25,000. A random sample of 150 35-year-olds in California results in a sample mean income of \$26,600 and a sample standard deviation of \$3800. At the 5% significance level, ca we conclude that the true

5. ## Chemistry

The mechanism for the reaction described by No2+CO--->CO2+NO is suggested to be (1)2NO2--->NO3+NO (2)NO3+CO--->NO2+CO2 Assuming that [NO3] is governed by steady-state conditions, derive the rate law for the production of CO2(g) and enter it in the space

6. ## Statistics

A survey of 1,000 adult Americans included the following question: "If the military draft were reinstated, would you favor or oppose drafting women as well as men?" Forty-three percent responded that they would favor drafting women if the draft were

7. ## Math

An airplane flying into a headwind travels the 2800 mile flying distance between two cities in 4 hours and 40 minutes. On the return flight, the same distance is traveled in 4 hours. Find the air speed of the plane and the speed of the wind assuming that

8. ## Statistics

A hotel chain is interested in evaluating processes. Guests can reserve a room by using either a telephone system or an online system that is accessed through the hotel's web site. Independent random samples of 80 guests who reserved a room by phone and 60

9. ## chemistry

What is the monomer and polymer structure of DNA?

OOBI

11. ## algebra

A three quarter inch wire has 12 ohms resistance. How much resistance has the same length of half-inch wire, if resistance varies inversely as the square of the diameter?

12. ## math

there are 30 marbles in a bag; 4 blue, 10 red,6 white, 10 yellow. You randomly draw5 marbles without replacement. Find the percent of drawing 2 red marbles and at least 2 white marbles.

13. ## Physic

The position of a mass on a spring is given by x = (7.6 cm) cos [2 π t / (0.82s)]. Where is the mass at t = 3.1 s? (Answer: 1.45cm) Answer is provided above. Please show all work on how to get the answer. Thank you.

14. ## History

1)How did enlistment in the Canadian military change between first world war and second world war? What changed? I have a few points but I can't think of any more 2)how has the Canadian military changed from the second world war? Research the the inclusion

15. ## physics

maximum and minimum magnitude of resultant of two vectors r 17 and 7 respectively what is the magnitude of resultant vector when both r perpendicular to each other??

16. ## Maths A level

A large cylinrical tankor radius 40cm contins a liquid and at time,t the depth is h cm. There is a hole in the bottom and liuid leaks out at a rate of 32pi h to power of 0.5. Show at time t, the heighth of the liquid in the tank satisfies the diff. eqn..dh

17. ## Basic Mathematics

A bag contains 2 red balls, 3 blue balls and 5 green balls. 3 balls are drawn at random. Find the probability that a) the 3 balls are of different colours b) 2 balls are of the same colour c) all the 3 are of the same colour.

18. ## geometry

Jake rolls two standard number cubes. Find the probability that the sum of the roll is 10, given that both cubes rolled odd numbers.

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19. ## math

If the difference between x and y is 40° then angles can be x=100° y=80°

20. ## economics

what are welfare payments or consumer subsidies

21. ## physics

1500 cm3 of ideal gas at STP is cooled to -20°C and put into a 1000 cm3 container. What is the final gauge pressure? 11 kPa 40 kPa 113 kPa 141 kPa 240 kPa

22. ## Physics

20.00 cm of space is available. How long a piece of brass at 20°C can be put there and still fit at 200°C? Brass has a linear expansion coefficient of 19 × 10^-6/C°. 19.93 cm 19.69 cm 19.50 cm 19.09 cm

23. ## physics

What is the ratio of the speed of sound in air at 0°C to the speed at 100°C?

24. ## Math

"if side a = 4, find x and y in a triangle"

25. ## science

An object moves up and down the y-axis with an acceleration given as a function of time t by the expression a equals A sine of omega-t. , whereA. and omega. are constants. What is the period of this motion? Answer omega. 2 pi omega. omega squared times A.

26. ## caculus

Let f(x,y)= x^2+3y-3xy and R is the triangular region with vertices (0, 0), (2, 0) and (2, 2). Find the interior and boundary points only at which the absolute extrema of f(x, y) can occur

27. ## algebra

how do you graph linear equation 2x= -10y and x+5y=3

28. ## Math

Mr. Jefferson has 20 students in his class. He wants to send 4 of these students to pick up books for the class. How many combinations of 4 students can he choose? A)5 B)80 C)4845 D)116,280

29. ## Science--Myanswer Plz, plz

Electric charges that are different attract each other. repel each other. **** exist in pairs. do not interact. Magnetic field lines around a bar magnet are only perpendicular to the magnet. spread out from one pole and curve around to the other. ****

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30. ## Statistics

1. This probability distribution shown below relates to the number of times a person goes to a local coffee shop per day. What is the expected mean (average) number of times a person goes to a local coffee shop per day? 2. What is the area equal to under a

31. ## Maths

Write an expression that represents the profit for 25 pennants, 80 buttons and 40 caps. Help? How?

x(yp) =

33. ## math

J.C. Nichols department store reports that the average sales on Saturdays is twice that on Thursdays and the average sales on Thursdays is twice that on the other four days.What fraction of the weekly sales are made on Thursdays? a. 1/7 b. 1/5 c. 2/7 d.

34. ## math

Pamela owns 37.5% of the stock of a corporation and sells 2/3 of her stock at a 10% profit, What percent of this stock does she own after this transaction? a. 12.5% b. 33 1/3% c. 66 2/3% d. 72.5% e. 90% please answer and explain

35. ## science

the neurons that transmit the signal to your foot to kick a soccer ball are called A. reflexes B. motor neurons C. sensory neurons D. interneurons

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36. ## math

Find the number of decibels for the power of the sound given. Round to the nearest decibel. A rocket engine, 2.42 cross 10−5 watts/cm2

37. ## Chemistry

Determine the final pressure of a gas that has initial pressure of 1.00 atm and is heated from 20.0 C to 30.0 C in a container with a fixed volume.

38. ## algebra

The atmospheric pressure P in pounds per square inch (psi) is given by P = 14.7 e−0.21 a where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 12.21 psi, what is its altitude? (Recall that 1 mi = 5,280 ft. Round

39. ## maths

A box of 12 table costs 21 cents.The same brand is packaged in bottles containing 100 tablets and sells for \$1.50 per bottle.How much is saved per dozen, by purchasing the larger amount? 1. 1/4 cents 2. 1 cents 3. 1/2 cents 4. 1 3/4 cents 5. 3 cents 6. 6

40. ## maths

If 5 1/2 yards = 1 rod and 3 feet = 1 yard,how many rods are equivalent to 1 foot? 1. 2/11 2. 6/11 3. 2/33 4. 11/6 5. 11/2 6. 11/8

41. ## Hileyville Hight

37.8 divided by 10 3

42. ## Math--2question

13. What is the surface area of a sphere with a radius of 4 meters rounded to the nearest square meter? (1 point)50 m2 101 m2 201 m2 268 m2 14. What is the volume of a sphere with a radius of 4 meters rounded to the nearest square meter? (1 point)67 m3 201

43. ## Bar Graphs

Do the bars on bar graphs need to have spacing between them or can they be right next to each other?

44. ## Math

What is 7.061 as a mixed number?

45. ## chemistry

Use the systematic treatment of equilibrium to determine the pH and concentrations of species in 1.00 L of solution containing 0.065 mol citric acid (H3A), 0.025 mol 8-hydroxyquinoline (HB), and 0.040 mol KOH. Consider just acid-base chemistry. Ignore ion

46. ## math

Ms. Lynn is cutting a piece of bulletin board paper into strips. What size pieces should she cut so that she has the fewest number of strips?

47. ## arithmetic

1. The first and last term of an A.P are, a and l respectively, show that the sum of nth term from the beginning and nth term from the end is a + l. 2. If mth term of an A.P be 1/n and nth term be 1/m, then show that its mnth term is 1. 3. The sum of four

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48. ## Algebra /Happy Holiday Everyone

Evaluate the Expression This is combination nCr (9 6 3 ) (6 4 1 ) n! r!(n-r)! I have try everything and came up 1296 and that was wrong. Could someone please help when you have time. Thank You

asked by Mary Ann
49. ## math

1. Gina wrote this system of linear equations: 2x + y = 7 4x + 5y = 11 Which of the following shows the first four steps that Gina could have used to correctly solve this system for x? a) y = 7 – 2x 4x + 5(7 – 2x) = 11 4x + 25 – 10x = 11 25 – 6x =

50. ## math

1. Cynthia used some of the ordered pairs from the set below to make a new set. {(4, –3), (–2, 5), (5, 4), (7, 2), (2, –7)} She wrote the domain of this set as {2, 4, 5}. Which ordered pairs from the original set did Cynthia use to make her new set?

51. ## french

Answer the question in the negative. Est-ce que tu fais de la voile?

52. ## science

Animals with nerve nets have A. no specialized neurons. B. sensory neurons but no interneurons. C. interneurons but no sensory neurons. D. only motor neurons

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53. ## English 4 help

1. both George Orwell and Stevie Smith employed irony in their writing. True or False 2. Alfred, Lord Tennyson's poem "Crossing the Bar" and Dylan Thomas's poem "Do Not Go Gently into That Good Night" convey a similar view point about death. True or False

54. ## LA

1. What is one thing a strong introduction does NOT do? (1 point)capture the reader’s interest present evidence to explain the topic provide background information state the main idea of the report 2. Which is the correct MLA citation for a magazine

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55. ## math

Joan is three years younger than Martin. How old will Joan be when she is 4/5 his age?

56. ## math

A gasoline gauge register 1/8 full.After purchasing 12 gallons of gasoline it registers 7/8 full. What is the capacity of the tank (in gallons)?

57. ## math

After 75 gallons of oil are removed from a cylindrical thank, its level is lowered from 1/6 to 1/7 of its capacity. How many gallons should now be added to the tank to fill it?

58. ## Algebra

Player lost 15 yards, gained 3,then 21 in three successive running plays. What was his total gain and loss

59. ## 2 questions?

What is the surface area of a sphere with a radius of 4 meters rounded to the nearest square meter? 50 m2 101 m2 201 m2 *** 268 m2 What is the volume of a sphere with a radius of 4 meters rounded to the nearest square meter? 67 m3 201 m3 268 m3

60. ## Science

How can you measure the angle of incidence and refraction with a protractor? If not, what are some tools I can use which are found at home?

61. ## math

16. If you work 37.5 hours per week at \$10.65 per hour, how much is your gross pay for a two-week period? (Round off your answer to the nearest cent.) A. \$399.38 B. \$788.10 C. \$239.26 D. \$798.75 i think its c

62. ## Health

Using outside references, describe outcomes management and its relationship to fitness. What do you think a mandatory outcomes program would have on rehab and wellness programs in the future? Is it good professionally? Will it raise costs? Provide

63. ## physics

A subcompact car, mass 1,000 kg, runs into and sticks to an at rest, 2,200 kg SUV. If their final speed is 4.7m/s ,what was the smaller cars initial speed? a) 67 m/s b) 30m/s c) 2.2 m/s d) 15 m/s

64. ## Science

5. Justin usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he's going to create and experiment to find out if there is something better. What is 1 constant? a. type of tissue b. Justin c. amount of tissue

65. ## science

A rock tumbles straight down from a cliff, its moving at 20 m/s when it hits. What is the height of the cliff? The mass of the rock is 8 kg. a) 2.5 m b) 400 m C) 20.4 m d) 160 m

66. ## Chemistry

How many moles of silver will be deposited from a silver(i)trioxonitrate(v)solution by 16g of copper (Ag=108, Cu=64).

67. ## Math

Laura is designing a rectangular porch for her house. On her scale drawing, the vertices of the rectangle are (2,7),(8,7), and (2,9). What are the coordinates of the fourth vertex? a)(8,9) b)(7,9) c)(7,2) d)(2,8) Is the answer a?

68. ## Calculation in chemistry

8.0g of mettalicoxide were reduced by hydrogen to give a metal of 2.0g. Calculate the mole of d metal that will combined with 0.5moles of oxygen.

69. ## james madison high school algebra

Can anyone help me with Ashworth high algebra 1 part 2 I really need some help I'm not good with math

2. which survey question is unbiased? a: "Do you think we should allow them to cut down the trees and pave over grass for the new playground?" b: "Which do you prefer with a meal-water, or a durupy sweet soft drink?" c: "Should there be a school dress

71. ## MATH HELP PLEASE!!

1. Mandy kept track of the trade-in value of a collector’s coin for several months through February of this year. She determined the line of best fit for the data was y = 4x + 12, where y is the trade-in value, in dollars, x months after February of this

72. ## Math

1. What are the mean, median, mode, and range of the data set 16, 17, 17, 17, 19, 21, 23, 24? (1 point)mean = 19.3; median = 17; mode = 18 mean = 19.3; median = 18; mode = 17 mean = 18; median = 19.3; mode = 17 mean = 20.3; median = 18; mode = 17 2. Given

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73. ## Language Arts

1. Electric lighting was a novelty before it became (1 point) unusual. common.* expensive. 2. Read the following paragraph from “The Electric Summer”: "That thrilled me, and scared me. The great world seemed to swing wide like the gates of the Fair,

74. ## Science

12. Justin usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he's going to create and experiment to find out if there is something better. a. type of tissue b. Justin c. amount of tissue d. mess of the

75. ## maths

If 15 students walk to college and 35 gets the bus, what percentage walk to college?

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76. ## science

Enzymes are important because they A. contain water. B. speed up chemical reactions. C. contain genetic material. D. help the cell maintain its shape.

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77. ## English 4 help

1. Which of the following statements is the best example of a limited subject for a research project? A. animal behavior B. animal welfare C. how to improve animal welfare D. improving welfare of farm animals 2. When evaluating the credibility of a source

78. ## science

Which term refers to the diffusion of water through a membrane? A. osmosis B. engulfing C. active transport D. facilitated transport

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79. ## History,geography,maths lit,business study

I need help which career i can follow whn i did ths subject

80. ## Math

2. A jar contains blue, red, yellow, and green marbles. P(blue)=1/4. What type of probability is illustrated and why? A. Experimental; the result is based on the number of possible outcomes. B. Experimental; the result is found by repeating an experiment.

81. ## math

6. Kevin wants to calculate the value of the expression below. Which shows an equivalent way Kevin could write this expression? - 17 + 3 a) - (17 + 3) b) - (17 - 3) c) (- 3 + 17) d) ( - 3 - 17)

82. ## math

Find the monthly payment for the loan. (Round your answer to the nearest cent.) \$700 loan for 12 months at 12%

83. ## Criminal Jstice - Ethics

The ethical life requires that we make good decisions, and good decisions are _________ decisions. A. emotional B. justified C. personal D. unreasoned I am pretty sure it's C., but need another opinion.

84. ## Algebra 1--Please, help me!

The side of a trinagular roof is to have the same height h and base b^2 as the side of a trapezodial roof. a. What is the ratio of the area of the triangular roof to the area of the trapezoidal roof? (For a triangle, A = 1/2b^2h. For a trapezoid, A = b1 +

85. ## English

1. I found it difficult to park. 2. I found it difficult parking. 3. I found to park difficult. 4. I found parking difficult. ------------- Which ones are correct?

86. ## English

1. I cannot endure being commanded. 2. I cannot endure being played. 3. I remember being carried on your shoulders. 4. I remember being surfed on the Internet. 5. I remember being surfed the Internet. -------------------- Would you check the sentences?

87. ## English

1. I regret breaking the window. 2. I regret to break the window. ------------------- Are both grammatical? What is the difference between the two sentences? 3. I regret having broken the window. 4. I regret to have broken the window. -------------------

88. ## Algebra 1

Key: *** = my answer 8. A catapult launches a boulder with an upward velocity of 148 ft/s. The height of the boulder, h, in feet after t seconds is given by the function h = –16t2 + 148t + 30. How long does it take the boulder to reach its maximum

89. ## English 4

1. Which of the following displays a correct use of pronouns? A. Soung spent more money than me B. Jamal was as interested as her C. Claudia has always been better at math than I. 2. Read the following sentence and determine which sentence in each set of

90. ## Biology 30

In what size populations might you expect it to be relatively common for alleles to become fixed? Why? I think that larger populations would be more likely to have fixed alleles, since perfect Hardy-Weinberg equilibrium states that there will be no change

91. ## Algebra 1--Please, help me!

The side of a trinagular roof is to have the same height h and base b^2 as the side of a trapezodial roof. a. What is the ratio of the area of the triangular roof to the area of the trapezoidal roof? (For a triangle, A = 1/2b^2h. For a trapezoid, A = b1 +

92. ## Math

A confectioner perchased several boxes of candy for \$6. He gave five boxes to his children, and sold the rest at 10 cents more per box than he had paid for them, and made a profit of 25% on his original cost. How much did a box of candy cost him?

93. ## Algebra

You roll a standard number cube. Find P(number less than 3). a. 1/3 b. 2/3 c. 3/2 d. 5/6

94. ## Maths

Suppose that y varies inversely with x and that y = 2 when x = 8. What is an equation for the inverse variation? What would the answer be? What is the factored form of the expression? s^2 – 81 (s – 9)(s – 9) (s – 9)(s + 11) (s – 9)(s + 9) (s +

95. ## Math

What are the minimum, first quartile, median, third quartile, and maximum of the data set? 40, 7, 2, 35, 12, 23, 18, 28 Please help me.

96. ## Enlish lit

How do the styles and themes of “Theme for English B” and “Ballad of Birmingham” compare? I read both, but I don't understand how that could compare in themes of styles. They have both different themes and styles!

97. ## Science

Five groups of rats are fed identical diets except for the amount of vitamin A that they receive. Each group gets a different amount. After three weeks on the diet, the rats are weighed to see if the amount of vitamin A received has affected their weight.

98. ## Math

State the types of graphs that you could use to present each set of data below.Which type of graph do you think is most appropriate? Data

99. ## Math

20. The time t required to drive a certain distance varies inversely with the speed, r. If it takes 2 hours to drive the distance at 67 miles per hour, how long will it take to drive the same distance at 55 miles per hour? a. about 1.64 hours b. about

100. ## Physics

Help needed Which of the following is equivalent to one ampere? 10 s/10 C 10 C/10 m 1.5 C/1.5 s 15 C/10 s

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101. ## Physics

am i correct? A stream of moving charges results in a current of 5.6 A. How long does 116 C of charge take to flow past a fixed point? 2.0 s 5.6 s 11.2 s 21 s

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102. ## math

what way would the line face with the linear equation y=-1/3x+5? A)A line going through the 5 up to the right B)A line going down from 5 c)A line going through -5 and up D)A line going through positive 1 and to the left. Is it d

103. ## math

use integer values of x from -3 to 3 to graph the equation y= {-X} Help me graph this by helping me with the coordinates.

104. ## Physics

Am i correct? Which of the following is a reasonable power rating on an electric oven? 220 V 8.0 A

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105. ## English

How do the styles and themes of “Theme for English B” and “Ballad of Birmingham” compare? I read both, but I don't understand how that could compare in themes of styles. They have both different themes and styles! x2

106. ## math

31. Solve the equation by completing the square. Round to the nearest hundredth if necessary. x2 – 6x = –8

107. ## math

1. Mandy kept track of the trade-in value of a collector’s coin for several months through February of this year. She determined the line of best fit for the data was y = 4x + 12, where y is the trade-in value, in dollars, x months after February of this

108. ## Maths! GAH!

What is the simplified form of the expression? 2b^–6 • b^12

109. ## Math

What is the degree of the monomial? 6x^5

110. ## Math

What are the solutions of the system? y = x2 + 3x – 4 y = 2x + 2 Don't understand

111. ## math

which table shows a proportional relationship? A)x=1,3,4,6 y=2,4,6,7 B)x=1,2,5,8 y=-2,0,6,12 C)x=2,3,5,6 y=-4,-6,-10-12 D)x=2,4,6,8 y=2,3,4,5 Is the answer C

112. ## biology honors

i am doing a research paper on cancer. what are some specific issues related to the topic and develop a specific research question from your selected contemporary issue. ( i put "the good and bad of cancer"

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113. ## algebra

Since opening night, attendance at Play A has increased steadily, while attendance at Play B first rose and then fell. Equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. On what day(s)

114. ## Spanish

Hi, I would like some tips on what to say when you're talking to a friend about what you're packing & need to buy to go on a trip. This is a conversational piece where it is required that we speak out of context as well (talking about the weekend,

115. ## HELP MATH !!

Melanie charges \$4.50 per hour when she washes cars, plus \$5.00 for supplies. Which function rule represents the amount y Melanie charges to wash cars for x hours? (1 point) a) y = 0.50x b) y = 4.50x + 5.00 c) y = 5.00x + 4.50 d) y = 9.50x The sale price

116. ## geometry

A plane is flying at an altitude of 12,000 m. From the pilot, the angle of depression to the airport tower is 32°. How far is the tower from a point directly beneath the plane?

117. ## Math - Variation

under certain conditions, the thrust T of a propeller varies jointly as the fourth power of it's diameter, d, and the square of the number, n, of revolutions per second. What happens to the thrust if n is doubled and d is halved?

118. ## Consider the graph with V = [A, B, C, X, Y, Z] and

Consider the graph with V = [A, B, C, X, Y, Z] and E = [AX, AY, AZ, BB, CX, CY, CZ, YY]. Without drawing a picture of the graph: a. List all the vertices adjacent to Y. b. List all the edges adjacent to AY. c. Find the degree of Y. d. Find the sum of the

There are several genes that control eye color; eye color is therefore called a (A) Polygenic trait. Besides genes that directly control eye color, there are other genes that can affect the color of your eyes. For example, your eye color genes may code for

120. ## Algebra 1--Please, help me!

The side of a trinagular roof is to have the same height h and base b (with a 2 below) as the side of a trapezodial roof. a. What is the ratio of the area of the triangular roof to the area of the trapezoidal roof? (For a triangle, A = 1/2b(with a 2