# TY

Popular questions and responses by TY
1. ## Chemistry

Consider the following reaction: CaCO3(s)→CaO(s)+CO2(g). Estimate ΔG∘ for this reaction at each of the following temperatures. (Assume that ΔH∘ and ΔS∘ do not change too much within the given temperature range.) for 310K,1070,1470 this is what i

2. ## Algebra

A taxi cab charges \$0.55 per mile in addition to a \$1.75 flat rate fee. Susie has \$10 to spend on a taxi cab ride. The taxi driver will not give anyone a ride unless they are going somewhere that is more than 2 miles away. Model Susie’s situation with a

3. ## algebra

A jogger ran 6 miles, decreased her speed by 1 mile per hour and than ran another 7 miles. If total jogging time was 2 1/42, find speed for each part of her run.

4. ## Math

14 cm piece of tape is cut into two pieces. The shorter piece is 2/5 as long as the longer one. which is the length of the shorter piece.

5. ## Accounting

CollegePak Company produced and sold 60,000 backpacks during the year just ended at an average price of \$20 per unit. Variable manufacturing costs were \$8 per unit, and variable marketing costs were \$4 per unit sold. Fixed costs amounted to \$180,000 for

6. ## Physics

a sled starts from rest and slides down a 38.0 degree frictionless hill for 4.24 seconds. How fast is it going at the end

7. ## English

Click on the box to choose whether the italicized sentence supports the key sentence. Key Sentence: Alexander Solzhenisyn had much tragedy in his life. He became a victim of cancer while in prison.no or yes He later moved to America. yes or no His book One

8. ## physics

a cyclist does work at the rate of 500w while riding. how much force does her foot push with, when she is traveling at 8.0 m/s?

9. ## english

Click on the box to choose whether each sentence restates the key idea expressed in the key sentence. Key Idea: When hot weather arrives and the nation takes to the outdoors, mishaps multiply. Drowning is the fourth most frequent cause of accidental

10. ## math/geometry

An architect is designing a small A-frame cottage for a new resort area. A cross section of the cottage is an isosceles triangle with an area of 98 square feet. The front wall of the cottage must a accommodate a sliding door that is 6 feet wide and 8 feet

11. ## math

a car is driving at a speed of 60 mi/h. What is the speed of the car in feet per minute?

12. ## algebra

Simplify the following expression: 4(20+12÷(5-3) I need help with just this question plz.

13. ## math

Children are usually ready to understand the concept of length measurement if:

14. ## Math proportions

If the wait time in line to ride a roller coaster is 20 minutes for 150 people how long is the wait time for 240 people? 240-150 = 90 people 150 people = 20 minutes 90 people= 40 minutes?

15. ## chemistry (charles law)

A 4.0L sample of methane gas is collected at 30.0 celcius .predict the volume of the sample at 0 celcius.

16. ## math

a band held a concert in it's hometown a total of 15000 people attended the tickets cost 8.50 per student and 12.50 per adult the concert took in a total of \$162500 how many adult came to the concert

17. ## physics

A uniformly charged conducting sphere of 1.2 m diameter has a surface charge density of 7.1 µC/m2. (a) Find the net charge in coulombs on the sphere. (b) What is the total electric flux leaving the surface of the sphere?

18. ## chemistry

In your own words, describe what a catalyst does in a chemical reaction.

19. ## Physics

a 15.5 kg block is pulled by two forces. The first is 11.8 N at a 53.7 angle and the second is 22.9 at a -15.8 angle. What is the magnitude of the acceleration

20. ## calculus

12. (1 point) The height y (in feet) of a ball thrown by a child is y = − 1 16 x 2 +4x+5 where x is the horizontal distance in feet from the point at which the ball is thrown. (a) How high is the ball when it leaves the child’s hand? (b) What is the

21. ## Math

A store sells used DVDs for \$8 each and used videotapes for \$6 each. Write a function rule to represent total selling price of DVDs and videotapes. Then use the function rule to find the price if 5 DVDs and 3 videotapes

22. ## physics

a block with a mass of 3.7 kg slides with a speed of 2.2 m/s on a frictionless surface. the block runs into a stationary spring and compresses it a certain distance before coming to rest. what is the compression distances, given that the spring has a

23. ## (chem) this will make me or break me :(

1.If the pressure of the gas in a 2.31 L balloon is 0.120 atm and the volume increases to 7.14 L, what will be the final pressure of the air within the balloon? Round to the nearest hundredth. Don't forget the units. 2.At a pressure of 2 atm, hydrogen gas

24. ## Chemistry

how many grams of sucrose are needed to make 100 ml of a 10^-2 Molarity sucrose solution?

25. ## physics

Jack, jill and spot go out for a picnic at the side of the river. jack takes spot for a jog. jack and spot are on the wast bank of the 30m wide river when jill is on the east side. the rivers current is 0.75m/s south. a) spot jumps into the river and swims

26. ## physics 20

Jack, jill and spot go out for a picnic at the side of the river. jack takes spot for a jog. jack and spot are on the wast bank of the 30m wide river when jill is on the east side. the rivers current is 0.75m/s south. a) spot jumps into the river and swims

27. ## Critical Thinking

I think i have some of the answers right but i need help, b/c although i keep reading over the chapter and highlighting the vocab word the definition is not clear to me. Can someone help please? 1 A(n) is a set of claims intended to support or prove a

28. ## science

another name for the gas form of water, water _____ ? 6 letters

29. ## chem-speed at STP

Hi- we were given this question and I have no clue how to figure it out...please help! Which gas molecules have the greatest average speed at STP? [a] SO2( sulfur dioxide) [b] NH3( ammonia) [c] O2( oxygen) [d] N20 (Dinitrogen oxide) Ok, at stp, that means

30. ## Chem

How do you figure out the Noble Gas Configuration? Also, why do you not put in the "p" level and when do you( if you even do) put it in? You need to be more specific about your question. Elements that lose electrons (Na, Ca, Al, etc) gain the noble gas

31. ## chem

what would the equation for this reaction be?; KAL(SO4)2.12H2O crystallizes out when water is cooled enough to cause the soluble ions to coalesce and precipitate out of solution.

32. ## Algebra

the sum of 4 times one number and 3 times a second number is 64. If the sum of the two numbers in 19, find the two new numbers

33. ## Math

Please solve: t/2 + t/6 = 2.

34. ## Math

Lions spend about 5/6 of their days sleeping. How many hours a day does a lion sleep?

35. ## chemistry

What is the theoretical yield of HO (in grams) if 8.3 mol HS were consumed in the above reaction? If 137.1g of water was actually collected after the reaction, what is the percent yield? I have no idea to do this problem. I am not good in math at all

36. ## writing

She forcefully _______ her view that something needs to be done to reduce crime in the city in front of city council. A. asserted B. snarled C. murmured D. commented

37. ## Physics

Two automobiles, each of mass 800kg , are moving at the same speed, 18m/s , when they collide and stick together. At what speed does the wreckage move if one car was driving north and one east.

38. ## math

y = -1/6 x + 5 identify the slope and the y-intercept of the equation.? how you would graph this line using the slope-intercept method. ? my teacher is saying im still getting the wrong answer:( please help

39. ## math

–x + 6y = 30 y = -1/6 x + 5 how do I identify the slope and the y-intercept of the equation for the second one and change the equation into slope-intercept form for the first one? I will do the rest on my own thanks

40. ## math (long div.)

please help me solve long division :( 1.)8 divided by 6984 (0.00114548) 2.)48 divided by 7584 (0.00632911) 3.)35 divided by 19933 (0.00175588) I know the answer to all of them but I don't know how to solve it the long way .

41. ## Calculus

Differentiate ln(cos(2x))

42. ## chemistry (charles law)

1.)A ballon is filled with 3.0L of helium at 310k.The balloon is placed in an oven where the temputure reaches 340k.what is the new volume of the ballon?

43. ## math ALG 2!

Write the following value in scientific notation. 7,400,000 7.4x10^3? help?

44. ## math ALG 2!

A blue bike is \$14 less than a red bike. The sum of their prices is \$300. How much is the red bike? i thought it was 123 but i think its wrong.plz help

45. ## physics

Two cars both travel along a straight road Northbound. At t = 0, the car 1 is 190.6 m further north than car 2. Also at t = 0, car 1 is travelling at 24.3 m/s, and car 2 is travelling at 5.7 m/s. Car 1 is slowing down with an acceleration of magnitude 0.28

46. ## Pre-calculus

Use a graphing utility to approximate any relative minimum or maximum values of the function g(x)=x sqrt4-x Not getting this one, either. Thanks.

47. ## College Algebra

Matt scored 75 on the calculus midterm. If the final exam counts twice as much as the midterm exam, then for wht range of scores on the final would Matt get an average between 81 and 92?

48. ## geometry concepts

determine Which point is between the other two and three points are Collinear mn=32 nl=16 lm=48

49. ## Chemistry

Compound Z has a MW of 100. Your lab partner weighed 25 grams of compound Z and dissolved it in water to a final volume of 1 liter. a) What is the concentration of the solution expressed as a percentage by weight (w/v)? b) What is the concentration of the

50. ## English

I have to tell if the verb is transitive or intransitive 1. Most people think of Bamboo as a tree or bush? 2. Bamboo belong to the grass family. 3. More than 500 kinds of bamboo grow in the tropic? 4.These plants thrive in warm climate. 5. People use

51. ## marketing

true or false? without the marketing concept, a business will develop a product or service and then decide how to market the product

52. ## math 156

describe two different ways that you could represent the number 0.80?

53. ## Chemistry

What is the concentration in % (m/v) of a solution with 75 g K2SO4 dissolved in 1500 mL of solvent?

54. ## Accounting

General Motors has always shut down for one week at the end of December for routine maintenance of the company’s equipment. The annual maintenance is essential to ensure that it's equipment can meet the precise specifications of customers. For the past

55. ## Math

There are 36 girls with red shirts. There are 19 boys with red shirts. There are 16 girls with blue shirts. How many children have red shirts?

56. ## Math

There are 36 girls with red shirts. There are 19 boys with red shirts. There are 16 girls with blue shirts. How many girls are there?

57. ## physics

a satellite orbits earth mass=5.98x10^24 once every 8 hours. At what radius does the satellite orbit

58. ## Physics

a 2.35 water bucket is swung in a full cirlce of radius 0.824 m just fast enough so that the water doesn't fall out the top meaning n equals zero there. What is the speed of the water at the top

59. ## Algebra 2

How do you write a function for a sinusoid? My Probelm has a Max of (9pi/8,1) and a Min of (3pi/8,-5).

60. ## sociology

According to Piaget, children develop through a series of stages that: lead all children to the final and most advanced stages of logical thinking. are unpredictable and unique to each child. are unpredictable, but nevertheless lead to the most advanced

61. ## MATH HELP

I have no freaking Idea on how to do this 4) R {1,2,3,4,7} T{3,5,6,7} What is the intersection of R & T? 5) What are the subsets of {-2,-1}?

62. ## math

21. Your class hopes to collect at least 415 cans of food for the annual food drive. There were 99 cans donated the first week and 112 more the second week. Write an inequality that describes this situation. Let c represent the number of cans of food that

63. ## math

I need some help with this.. The swim team is selling key chains as a fundraiser. If its goal is to raise at least \$180, how many key chains must it sell at \$1.50 each to meet that goal? Write and solve an inequality.

64. ## Math

Bill cut a piece of cloth into 2 pieces. The length of the shorter piece is 5/9 of the longer piece. A find the ratio of the length of the longer piece to the length of the shorter piece to the total length. B if the longer piece is 148.6cm longer than the

65. ## algebra

find the zeros: x^2 - 2x + 8

66. ## Chemistry

How much does 1.0 ft^3 of mercury weigh given the density of mercury is 13.6 g/ml?

67. ## Geometry

Find mAD if CA is a diameter of circle P

68. ## Math

The perimeter of an isosceles triangle is four times the length of the shortest side. The longer sides are 4.5 feet longer than the shortest side. What is the length of each side of the triangle?

69. ## science

calculate delta E & delta H when 100dm^2 of helium at S.T.P are heated to 373k in a closed container. assuming that the gas behaves ideally and CV=12.55g/mol

70. ## math

i'm supposed to find an area of a figure but i'm not sure what it is so therefore i don't know the formula. basically, it kind of looks like a capsule but more roundish like an oval. there's two lines down the middle that both measure at 18 ft. the bottom

71. ## Math

A mixture of peanuts and walnuts sells for \$3 per pound. How many pounds of peanuts at \$1.50 per pound should be mixed with 12 pounds of walnuts at \$4 per pound

72. ## Geometry

An unsharpened pencil is a regular hexagonal prism of wood with a cylinder of graphite in the middle. The hexagon has a side of 4mm. The graphite is 2mm in diameter. The pencil is 180 mm long. Determine the volume of wood in the pencil.

73. ## math

at this rate how many trucks would pass Luann if 90 vechicles passed her

74. ## math

14.2 is 35.5% of what number? 3/4 is 60% of what number? What number is 25% of 7/8?

75. ## math

A truck driver drive 49 miles in 1 1/3 hours. What was the average speed in miles per hour for this trip? Write the answer as a mixed fraction.

76. ## algebra

Layla wants to buy fish, chicken or some of each. The fish cost \$4 per pound and the chicken cost \$3 per pound. She will spend at least \$11 no more that \$15. What is the system of inequalities to model this is situation

77. ## Math

A girl's club is selling hats to raise money. They ordered 500 hats that cost\$5.15 each. They will sell the hats for \$18.50 each. All the hats were sold. How do you find the amount of money the club made after expenses?

78. ## Math

A factory whistle blows every 30 minutes. The clock tower chimes every 15 minutes. If they both sounded at 1:00 p.m., at what time will you hear them both at the same time again?

79. ## math

Franco hikes 4 miles each day for 5 days. He carries 100 ounces of water with him. It takes him 1 hour to hike 4 miles. How many hours did he hike in 5 days?

80. ## MAT222

I would like to know if the following are correct and if not how and what did I do wrong. 27^-2/3 27^-1/3 = 27^-2/3 - -1/3 = 27^-3/3 sqrt 27 (a^1/2b)^1/2 (ab^1/2) = a^5/4b

81. ## English

Score 1. Choose two of the scientists you read about in the Stories of Scientists unit. Compare and contrast these scientists. Answer this question in no fewer than two paragraphs. Be sure to include specific details about each scientist’s life, career,

82. ## Math

Kayla went to a football game. Her team scored 6 times, and got the extra point each time. A touchdown with an extra point is worth 7 points. How many points did her team score? If the other team scored 2 more times than her team and got 7 each time, how

83. ## Calculus

Lines tangent to the curve y-1=2x^2+3x pass through the point A(2,-1). Find the x-coordinate(s) of the point(s) of tangency. The answer is 2+2^1/2, 2-2^1/2, I just don't know how to get there. Please help! Thank you!

84. ## physics

A 61.0 -kg bungee jumper is standing on a tall platform (h0 = 46.0 m), as indicated in the figure. The bungee cord has an unstrained length of L0 = 9.00 m, and when stretched, behaves like an ideal spring with a spring constant of 76.0 N/m. The jumper

85. ## Math

Each digit in the division example has been replaced with the same letter throughout. (r stands for remainder.) The digits used wher 1,2,3,4,5,7,and 9. Find the numbers SU rE ------ )CAN -CU ------- IN - IU ------- E

86. ## math (need check answer)

You are buying balloons for a party. A small balloon cost \$3. A large balloon cost \$4. Write an algebraic expression for the cost of x small balloons and y large balloons. Then find the total cost for 14 small balloons and 8 large balloons. Q1: An

87. ## algebraic expression

Lindsey has 47 coins in her change purse that are either dimes or quarters. If n represents the number of quarters she has, write an expression in terms of n that describes the number of dimes. The algebraic expression is _________ My answer is D + n = 47,

88. ## math

an office manager is renting a local hall for un upcoming event. The hall costs \$200. The food costs \$14 per person. The office manager is not sure how many people will attend. Which quantity is not a variable quantity - the cost to rent the hall, the

89. ## Math

DVD cases are 9/16 inch wide.. If Juan has 60 DVDs how many will fit on one shelf. Shelves are 2 1/2 ft long.

90. ## Sociology

Research on children raised in orphanages has found that?

91. ## algerbra

translate the equation 3 over 5-5=x(y+7)into a verbal sentence

92. ## government

How do ideological parties and single-issue parties differ from one another? A. Ideological parties tend to be more liberal, while single-issue parties tend to be more conservative. B. Ideological parties focus on certain beliefs, while single-issue

93. ## science

An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the following objects will accelerate EXCEPT?

94. ## algebra 1

Find C intersection D. C: {3, 6, 9, 12, 15, 18} D: {numbers divisible by 2 from 1 to 20} {2, 4, 6, 8, 10, 12, 14, 16, 18, 20} {6, 12, 18} {2, 3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20} { } I really think its the second one but im so confused.

95. ## physic

ferryboat traveling at a speed of 30 km/h attempts to cross a river with a current of 5 km/h. What is the boat's speed relative to the shore?

96. ## alg 1 help?

If A = {0, 1, 2, 3} and B = {c−3, −2, −1}, what is A ¿ B? ? help?:(

97. ## Maths

Jessica needs to construct a rectangular outdoor dog pen. The pen must have 4 sides. I need to draw 6 different shaped rectangular pens, seen from the top, using 24m of fencing.

98. ## language

Write these words in alphabetical order. Alphabetize them to the second letter. grim, blot, sum, build, shelf

99. ## alg 1

6(4) ÷ 2 − 1 + 5 I don't understand how to do it step by step