# Questions Asked onMarch 7, 2018

1. ## Chem

A sealed container holding 0.0255 L of an ideal gas at 0.989 atm and 71 °C is placed into a refrigerator and cooled to 45 °C with no change in volume. Calculate the final pressure of the gas.

2. ## Geometry B

unit 3 lesson 7: similarity unit test (Connexus) Can someone help me? It's the one with this question: The Seattle space needle is 604 feet tall. a model of the building is 48 inches tall. what is the ratio of the height of the model to the height of the

3. ## Chemistry

The elements X and Y form a compound that is 40% X and 60%Y by mass. The atomic mass of X is twice that of Y. What is the empirical formula of the compound?

4. ## calculus

Find the value of \$800 deposited in a bank at 10% interest for 8 years compounded in the following ways. (Round your answers to the nearest cent.) (a) annually_________\$ (b) quarterly_________\$ (c) continuously________\$

5. ## Calculus

Find how many terms are required to approximate the sum of the series from 1 to infinity of (-1)^(n+1)/(n^3) with an error of less than 0.001. I think 11 terms are required.

6. ## Physics

A 200 kg block of ice at 0.0c is placed in a large lake the temperature of the lake is just slightly higher than 0 C and the ice melts very slowly. i) what is the entropy change of ice ii) What is the entropy change of the lake iii) What is the entropy

7. ## MATH!!!!!!!!! HELP!!!!!!!! DX

During a three-day period, the stock of Money, Inc. gained 6 points, lost 10 points, and gained 2 points. What was the total change in points for the three days?

8. ## English (essay question)

Hi, I'm doing an assignment which requires me to choose two of Mark Twain's quotes (from a certain page) and answer the following questions: 1. What is the essential cultural observation or situation being satirized? What clues lead you to this conclusion?

9. ## manth

a trail bike has a front wheel with a diameter of 40cm and a back wheel of of a diametet 60cm. Through what angle does the front wheel turn if the back wheel turns through 8 radians?

10. ## Math

1. What is the intercept (y-intercept) of the function y = 2.5x + 8 2. What is the x-intercept of the function y = 2.5x + 8 3. What is the slope of the function y = 2.5x + 8 4. The sides of a triangle are 6,10, and 12. Using Pythagorean Theorem, determine

11. ## math

Matthew used 1/5 of a box of flour for cooking and 3/4 of the remainder to make bread. The rest of the flour was packed equally into 5 containers. What fraction of the total amount of flour was in each container?

12. ## Trigonometry

The function in the graph has the general equation f(x)=asin(bx+c)+d. Which of the following values are correct? Select all that apply d=-3 C=-1 B=0.5 B=0.5 D=1 A=2 B=2

13. ## Science

Distance 55 m time 10.30 am and distance 255 m time 10.32 am. Find the avg. Speed. Plz advice how total time is being calculated.

14. ## Social Studies

2. Which statement best explains how life is changing in China? a) new agricultural techniques are making lakes cleaner b) the government is moving villages to make more park land c) new factories and ways of life are producing more waste ** d) more and

15. ## S.S

In the election of 1856, Millard Fillmore was the Know-Nothing candidate and received 21 percent of the popular vote. What conclusion could be drawn from this fact? A. A significant number of people opposed slavery. B. A significant number of people were

16. ## manth

find the reference and coterminal angle for 2456 and 740

17. ## Civics Economics

1. Nixon's credibility as President was severely strained by the Watergate scandal. a. True b. False (A) 2. In the 1970's, the federal government gave up its policy of trying to Americanize the Indians. a. True b. False (B) 3. Vietnam was no longer an

18. ## algebra1

Match each of the following with the equation written in Point-Slope form. y+5=3(x−3)

19. ## Physics

A bug sits on the edge of a rotating disk. Later, the bug begins to move toward the center of the disk. Does the bug exert a torque on the disk?

20. ## Guidance and discipline

Kelly is constantly tattling On her classmates. This could be due to her age and the fact that she is very concerned about rules,or it could be due to a need for : A. Power B. Acceptance C. Revenge. D. Attention Is it B?

21. ## Story Problem

Two bikers bike4 miles north and 6 miles west. What is the shortest distance they must travel to get to their starting point?

22. ## English

1. The best way to improve listening comprehension is to a. take informal notes on what you hear. b. use complete sentences to take detailed notes of both main ideas and details. c. concentrate on listening to the speaker's transitions. (B) 2.

23. ## Math Help Me Please

Graph the two lines 2x + 3y = 18 3x -4y > 16. Give the Domain and Range, Slope, and Y-intercept for each line. Graph each equation above on the graph below and show all work. Give the Domain and Range, Slope, and Y-intercept for each line. Explain in

24. ## math;)

1. At which values of x does the graph of f(x)=cos x intersect the x-axis? Select all that apply. (2 answers) a. 0*** b. pi/2*** c. pi d. 3pi/2 e. 2pi 2. Which of the following represents the domain and range of y=tan x? a. domain: -infinity

25. ## Biology organism classification

We have "made up" organism's based on real ones like these 2. Chemosynthetic goldfish that convert pollution to food (autotrophs) 3. Aquatic humanoids whose main diet is aqua-wheat and basking sharks. They have fins instead of legs (heterotrophs) 4.

26. ## maths

Paul, Kate and Sarah's mother left a bowl of jellybeans on their kitchen counter. Paul took one-third of the jellybeans, but then threw back 4 because he didn't like the black ones. Sarah ate 6 jellybeans and then took one-quater of what remained. Kate

27. ## Economics

Suppose that when disposable income rises from \$5.2 trillion to \$6.0 trillion, consumption rises from \$5.0 trillion to \$5.6 trillion. What is the marginal propensity to consume?

28. ## English / Grammar

Asking for help in re-structuring and or grammar correct: W.E.B. Du Bois. Du Bois wrote this book in order to show readers the striving in the souls of black people. He wants readers to feel the hurt, accomplishments, and losses of blacks. “Will America

29. ## Algebra

Find 8 values of c that make the following expression factorable. x^2+3x+c. How did you know?

30. ## Social Studies Help please its a quiz

Dix also joined a growing movement to improve conditions in prisons. Men, women, and children were often crammed together in cold, damp rooms. When food supplies were low, prisoners went hungry—unless they had money to buy meals from jailers. Five out of

31. ## Algebra 1

Micah Beasley invested \$10,000 for one year, part at 10% annual interest and part at 14% annual interest. Vos total interest for the year was \$1,280. How much money did he invest at each rate?

32. ## Trigonometry

A pilot wants to maintain a course of 40° and a ground speed of 300 mph against a 45 mph wind from 20° west of north. What should his heading be?

33. ## Algebra 1

Josh and Greg leave from the same place and travel the same route. Josh travels 2 hours and stops. Greg travels 5 hours at double Josh's rate. After five hours they are 256 miles apart. Find the rate and distance of each.

34. ## S.S

5. The Underground Railroad used escape routes that went throughout the South. Based on that fact, which of the following conclusions could be made? (1 point) A. The Southern states were leaning toward emancipation of the slaves. B. Slaves were hopeful to

35. ## English

True or false? There could be a noun a verb and an adjective in one sentence.

36. ## Science

Three isotopes of hydrogen

37. ## Math

Just to clarity to simplify (1+√3) / (1-√3) to multiple (1+√3) / (1+√3) OR (1-√3) / (1-√3) both seems to result the same answer, I'm not sure but people usually multiple by (1-√3) / (1-√3) ? Thanks

38. ## Physics

Jason while driving on Kukum highway at 70 m.s – 1 seeing the traffic light turn red, he applies the brake and comes to rest in a time of 2 seconds. What is his deceleration?

39. ## chem

A flexible container at an initial volume of 4.11 L contains 7.51 mol of gas. More gas is then added to the container until it reaches a final volume of 15.9 L. Assuming the pressure and temperature of the gas remain constant, calculate the number of moles

41. ## physics

If a very large iceberg were to float to warmer waters and melt, what, in principle, would happen to the overall sea-level? A. sea-level would rise very slightly. B. sea-level would fall very slightly. C. sea-level would stay the same. *I would say A

42. ## fluid mechanics

.75m pipe connects two reservoirs. water is pumped from the lower reservoir to a reservoir 42m higher using a 850 kw pump, ep=78%. If Head losses are 22m, define Q

43. ## Chemistry

How is the CG/MS instrument used in the detection of drugs? (explaining all the scientific factors). I cannot seem to find much information on this so I would really appreciate it someone could provide me with a 2 or 3 paragraph explaining this concept in

44. ## Civics Economics

1. Nixon's plan to achieve peace in Vietnam was called the "silent majority." a. True b. False (B) 2. Killings at Kent State and Jackson State Universities rallied the nation's support for the Vietnam War. a. True b. False (A) 3. One result of the Yom

45. ## AP Physics

Determine the change in rotational kinetic energy when the rotational velocity of the turntable of a stereo system increases from 0 to 33 rpm. Its rotational inertia is 6.2×10−3kg⋅

46. ## Physics

Jason while driving on Kukum highway at 70 m.s – 1 seeing the traffic light turn red, he applies the brake and comes to rest in a time of 2 seconds. What is his deceleration?

47. ## SCIENCE

A sphere of mass 50g and diameter 20cm is rolling with a speed of 5cm/sec . What will be its its total energy.

49. ## math

The age of Mwenda is 3/5 of that of his sister.If 20 years ago the age of Mwenda was 2/5 of that of his sister then. Find the present age of Mwend. #Please guys help me this question#

50. ## Physics

What type of "fluid" Would exist if the temp was 850°c and pressure was 1.75 atm?

51. ## maths

A primary school is planning to hold a fete, but needs help in figuring out how much to charge for entry. they intend to have an 'all you can eat' sausages sizzle, and they think each adult will eat about \$3 worth of sausages and each child \$2 worth. The

52. ## Chemistry

How is the GC/MS instrument used in the detection of drugs? (explaining all the scientific factors). I cannot seem to find much information on this so I would really appreciate it someone could provide me with a 2 or 3 paragraph explaining this concept in

53. ## Pls sir Steve or Damon or rainy help me to learn

1.for any 2 non-zero integers x and y there exist a unique integer q and r called the quotient and remainder respectively such that x=yq+r where

54. ## English

1. I have 4 pets back home in America. -------------------------------------------------- What is the meaning of 'back' and 'home' here?

55. ## Science Chemical Reactions

1. The current atomic model would be revised if (1 point) A• better microscopes were being used to study its structure. B• better microscopes are invented in the future. C• new information about an atom’s structure is discovered. C• a new element

56. ## Science

Name ONE of the air masses that can be found in North America (remember to use both the temperature and humidity descriptors). I searched everywhere, even looked back at my lesson, and I still can't find out, if you can help me or send me a link, I will be

57. ## Math IMPORTANT

A large pizza at Tony's Pizzeria is a circle with a 14-inch diameter. How long is the pizza?

58. ## MATH!!!!

Henry has 4 times as much money as David. David has 3 times as much money as Ryan. The total money of the three boys is \$128. How much does Henry have?

59. ## Math

Sally has 1/3 as many stickers as Mary. Jane has 3/4 as many stickers as Sally. If the three girls have 114 stickers altogether, how much stickers does Jane have?

60. ## Science

Hello. I am trying to figure out how to solve polygenic Punnett squares. In order to get extra credit on a test, I have to learn how to use them. I've tried looking at images and tutorials, but I'm still confused.

61. ## chem

If 63.5 moles of an ideal gas is at 4.03 atm at 51.80 °C, what is the volume of the gas?

62. ## Science

The earth is in constant motion. It rotates and revolves. Which of the following is NOT TRUE of the Earth's motion? 2 points A Due to the revolution of the Earth, we experience seasons. B The Earth rotates on its axis once every 24 hours. This causes day

63. ## math

I need help with my homework. 1) You want to buy a jacket that costs \$45, it is on sale for 30% off. How much money will you save? Show your work. 1) You grab lunch with a friend and the bill is \$27.00. You want to leave a 15% tip, how much will the final

64. ## Social Studies

Part 3: Write. 1. Write a persuasive argument explaining why you think this innovation is the most important development of ancient China. 2. Your argument should include the following: a. Begin with an opening sentence, introducing your argument. b. Add

65. ## Chem

If 2.41 moles of an ideal gas has a pressure of 4.65 atm, and a volume of 27.33 L, what is the temperature of the sample in degrees Celsius?

66. ## math

serio walked to and from school on 3/5 of the days in one month. He got a ride to school on 7/8 of the remaining days. On the remaining school day that month he stayed home with a cold. How many school days were there that month?

68. ## Math

1. What is the intercept (y-intercept) of the function y = 2.5x + 8 is it 8? 2. What is the x-intercept of the function y = 2.5x + 8 i'm honestly not sure... 3. What is the slope of the function y = 2.5x + 8 um...is it 2.5? 4. The sides of a triangle are

69. ## Trigonometry

a small blimp has an air speed of 24km/h on a heading of 42°. The wind's speed is 9 km/h and its direction is 312°. Find the ground speed and drift angle of the blimp.

70. ## math

serio walked to and from school on 3/5 of the days in one month. He got a ride to school on 7/8 of the remaining days. On the remaining school day that month he stayed home with a cold. How many school days were there that month?

71. ## Math

If I roll a die 6 times, how many 5's do I expect to get? I know if I rolled it one time I would have a 1 in 6 chance of getting a 5, but how do I determine how many I would expect to get if I roll it 6 times?

72. ## English

1. One major difference between a debate and a research paper is that a. a research paper involves a multistage process of gathering, organizing, and revising information. b. a debate involves the delivery of ideas before an audience. c. a debate involves

73. ## math

serio walked to and from school on 3/5 of the days in one month. He got a ride to school on 7/8 of the remaining days. On the remaining school day that month he stayed home with a cold. How many school days were there that month?

74. ## Chemistry

In which of the following bonds does nitrogen carry a slightly negative charge? (8-) Select one: a. N-N b. N-C c. N-O d. N-F

75. ## Math

Gershona is babysitting her brothers. To keep them occupied, she lets them put stickers into sticker books. Joshua puts 110 stickers on 22 pages. Mike puts 100 stickers on 25 pages. Select all statements that are true about these ratios. a) Mike's sticker

76. ## Social Studies

Write a persuasive argument explaining why you think this innovation is the most important development of ancient China.

77. ## Physics

A bug sits on the edge of a disk as the disk rotates counterclockwise. Later, the bug starts to move in the direction of the disk's rotation. Does the disk's angular momentum increase, decrease, or stay the same?

78. ## Science

What happens to air and water during the steps of cloud formation?

79. ## Science

what is the function of the small intestin?

80. ## Literature

How do the lines of the Chorus at the end of Antigone Part 2 affect the meaning of the play? The Chorus ponders the role of fate in determining the lives of people. The Chorus emphasizes the cruelty with which Zeus exercises his power. The Chorus explains

81. ## math

A bus driver filled up 7/8 of her fuel tank for a trip. She used 6/7 of the fuel by the end of the trip. The capacity of her tank is 70 gallons. How much fuel did she use for the trip?

82. ## Science

What does H2O stand for in science

83. ## Science

What causes seasons

84. ## Science

In approximately what year did oil and gas become the dominant fuels for the US? 1880 1910 1940 1970 2000

85. ## chemistry

Calculate the [H⁺] for the aqueous solution in which [OH⁻] is 1 x 10⁻⁹. Is this solution acidic, basic or neutral? Show your work

86. ## A question for Ms. Sue

What is your secret? (Why are you so smart?)

87. ## MATH

The graph of a trigonometric function oscillates between y=1 and y=-7. It reaches its maximum at x= pi and its minimum at x=3pi. which of the following could be the equation of the function? A) f(x)=4 cos x/2-3 B) f(x)=4 sin x/2-3 C) f(x)=4 sin 2x-3 D)

88. ## Math

Tom bought three tee shirts for the sale price of \$14.50. The three tee shirts were originally priced \$3.99,\$6.99, and \$5.99. How much money did he save compared to the original total price of the T-shirts? Show your calculations. What percentage of the

89. ## Math

The graph of a trigonometric function oscillates between y=1 and y=-7. It reaches its maximum at x= pi and its minimum at x=3pi. which of the following could be the equation of the function? A) f(x)=4 cos x/2-3 B) f(x)=4 sin x/2-3 C) f(x)=4 sin 2x-3 D)

90. ## Chem

How many molecules are there in an ideal gas with a volume of 1.99 L at STP?

91. ## chem

1.45 g of an unknown gas at 53 °C and 1.10 atm is stored in a 1.85-L flask. What is the density of the gas what is the molar mass of the gas

92. ## Math: Geometry and Measurement

Find the area of each circle shown below. Also please tell me how to do it, and no false info please:) The image shows a) a circle with the diameter of 20 cm and b) a circle with the radius of 7 m.

93. ## Math

If 3tanA.tanA-4√3TanA+3=0

94. ## Chem

If 86.5 mol of an ideal gas occupies 13.5 L at 79.00 °C, what is the pressure of the gas?

95. ## precalculus

cotxsinx - cosx + cosx Does this equal cos x ? cos/sin * sin = cosx

96. ## S.S help please thank you

Which of the following best summarizes the information shown in the graphic organizer? (1 point

97. ## Chemistry

If a balloon has the volume of 5.00 L at 25 C what is its volume when you put the balloon in a freezer at -12 C?

98. ## Biology

Question states a made up organism and want me to classify it by kingdom , phylum and genus am i supposed to "make up" the genus since they are not real animals. an animal example is this Butter-roaches: genetic engineering created these butterfly-like

99. ## chem

A 8.00-L container holds a mixture of two gases at 23 °C. The partial pressures of gas A and gas B, respectively, are 0.349 atm and 0.819 atm. If 0.210 mol of a third gas is added with no change in volume or temperature, what will the total pressure

100. ## math

The age of Mwenda is 3/5 of that of his sister.If 20 years ago the age of Mwenda was 2/5 that of his sister then. Find the present age of Mwend. #Please guys help me this question#