# Billy

Most popular questions and responses by Billy

1. In “Raymond’s Run,” which detail supports the prediction that Squeaky will not let Gretchen win the race? (1 point) I put * marks by ones I thought Squeaky is insulted when Mr. Pearson suggests she give someone else “a break” this year.

2. ## geometry

How do I find the surface area of a sphere with a radius of 8cm?

3. ## chemistry

Gallium is a metal with a wide variety of uses. Some of its applications include computer memory chips, light emitting diodes and lasers. Radioactive isotopes of gallium are used to image the human body and locate tumors. Naturally occurring gallium

4. ## Physics

A billiard ball traveling at 3.00 m/s collides perfectly elastically with an identical billiard ball initially at rest on the level table. The initially moving billiard ball deflects 30.0° from its original direction. What is the speed of the initially

1) What can you infer from this sentence near the start of "The Story Teller"? Most of the aunt's remarks seemed to begin with "Don't," and nearly all of the children's remarks began with "Why" A) It is a long trip to Templecombe B)the aunt is extremely

6. ## Math

Do the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the table. x 1 3 5 10 y 4 12 20 40 a. direct variation; y=4x b. direct variation; xy=1/4 c. inverse variation; xy=4 d. inverse variation;

7. ## chemistry

a.) Write the balanced complete combustion reaction for ethane (C2H6), producing CO2 and water vapour. Make sure to include phases. Also, make sure that the stoichiometric coefficients are whole numbers and are not fractions. b.) What is the enthalpy of

8. ## physics

a child causes a wagon to accelerate by pulling it with a horizontal force. newton's third law says that the wagon exerts an equal and opposite force on the child. how can the wagon accelerate? (hint: draw a free-body diagram for each object.)

9. ## trig

half angle formula to find exact value cos 112.5 degree

10. ## social

which was a significant reason middle colonies were more favorable to farmers than new england? select all that apply. The climate was cooler The growing season was longer The soil was more fertile Crops grew better along the ocasts THere were more people

11. ## Physics

A bag is dropped from a hovering helicopter. The bag has fallen for 1.8 s. What is the bag's velocity? How far has the bag fallen?

12. ## Chemistry

What volume, in milliliters, of a stock solution of 2.55 M NaOH would you have to use to prepare 1.00 L of a 0.500 M NaOH?

13. ## Physics

A transistor radio operates by means of a 9.0 V battery that supplies it with a 40 mA current. (a) If the cost of the battery is \$0.50 and it lasts for 300 h, what is the cost per kWh to operate the radio in this manner? (b) The same radio, by means of a

14. ## Math

On the leeward side of the island of Oahu, in the small village of Nanakuli, about 80% of the residents are of Hawaiian ancestry. Let n = 1,2,3.... represent the number of people you must meet until you encounter the first person of Hawaiian ancestry in

15. ## health

without this system in the body you would get really sick because toxins and waste would build up. 1. cardiovascular 2. excretory 3.integumentary 4. muscular

16. ## Stat

Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution. what

17. ## Chemistry

A volume of 80.0mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.20 ∘C , what is the mass of the steel bar? Use the following values: specific

18. ## physics

Mary is standing at a place such that she makes an angle of 42° to the right of the normal of a mirror. Where should Mary's mom stand so that she can best see Mary's reflection in the mirror?

19. ## Physics

In the annual battle of the dorms, students gather on the roofs of Jackson and Walton dorms to launch water balloons at each other with slingshots. The horizontal distance between the buildings is 40.0 m, and the heights of the Jackson and Walton buildings

20. ## Math

A drawer contains 20 black socks and 20 white socks. If the light is off and you reach into the draw to get your socks, what is the minimum number of socks you must pull out in order to be sure that you have a matching pair?

21. ## Algebra

1.name the solid according to its description The figure has one base that is a hexagon. Pentagonal pyramid Hexagonal pyramid Hexagonal sphere Pentagonal pyramid

22. ## chemistry

at a deep-sea station 200m below the surface of the Pacific Ocean, workers live in a highly pressurized environment. How many lites of gas at STP must be compressed on the surface to fill the underwater environmen with 2.00 x 10^7 of gas at 20.0 atm? What

23. ## History

Why does the Tenth Amendment use the term: reserved, to describe the powers that belong to the people and the states?

24. ## Economics

Do you think a nation’s output should be distributed according to income or according to some other standard (such as basic human need)?

25. ## Algebra

Can someone please help on this portfolio? I've been stuck on it for several days and i've only got task 1 I chose Cape Coral for the population that increased, and Fort Lauderdale as the one that decreased. Task 2 a. Do some research and find a city that

26. ## Science

You need to make an aqueous solution of 0.201 M iron(II) bromide for an experiment in lab, using a 250 mL volumetric flask. How much solid iron(II) bromide should you add ?

put ** by the ones I thought correct Which of the following statements best describes the characteristics of a hypothesis, one of the steps of the scientific method? a)It is a possible answer to a scientific question *** b) It is a scientific inquiry that

I put ** by the ones I thought correct Which of the following statements best describes the characteristics of a hypothesis, one of the steps of the scientific method? a)It is a possible answer to a scientific question *** b) It is a scientific inquiry

29. ## Physics

Suppose that 4.7 moles of a monatomic ideal gas (atomic mass = 8.5 × 10^-27 kg) are heated from 300K to 500K at a constant volume of 0.47 m^3. It may help you to recall that CVCV = 12.47 J/K/mole and CPCP = 20.79 J/K/mole for a monatomic ideal gas, and

30. ## Marco Eco

Suppose you borrow \$100 of principal that must be repaid at the end of two years, along with interest of 4 percent per year. If the annual inflation rate turns out to be 8 percent, (a) What is the real rate of interest on the loan? (b) What is the real

31. ## Science

Which of the following is not needed to make a model of the water cycle? A. An energy source B. Water C. A closed container D. A drain D is correct

32. ## physics

Two charges, qA and qB, are separated by a distance, d, and exert a force, F, on each other. Analyze Coulomb's law and answer the following questions. (a) What new force will exist if qA is doubled? (b) What new force will exist if qA and qB are cut in

33. ## chemistry

A 50.0 mL sample of 0.50 M HBr is titrated with 0.25 M KOH. What is the pH after the addition of 60.0 mL of KOH? A) 4.1 B) 13.4 C) 1.7 D) 2.0 E) 7.7 I'm confused on the process of solving this problem. My work so far: .050L X .50 mol/1L= .025 mol HBR .060L

34. ## Math

Choose the best definition for the following term: variable ? A process where you must look for terms that have identical variable parts and then combine their coefficients A process where if two things are equal, one can be put in the place of the other

35. ## Physics

A brick is dropped from a high scaffold. (a) What is its velocity after 4.5 s? m/s (b) How far does the brick fall during this time?

36. ## college physics

Two blocks are arranged at the ends of amassless string as shown in the figure. The system starts from rest. When the 1.67 kg mass has fallen through 0.395 m, its downward speed is 1.31 m/s. The acceleration of gravity is 9.8 m/s2. What is the frictional

37. ## chemistry

the heat of fusion for thallium is 21 J/g, and its heat of vaporization is 795 J/g. Thallium's melting point is 304 degrees celsius, and its boiling point is 1457 degrees celsius. The specific heat of liquid thallium is 0.13 J/g degrees celsius. How much

38. ## Math

Jim's sandwich cost the same as the comjbined cost of his salad and milk. The sandwich cost three times as the milk. The salad cost \$0.20 more than twice the cost of the milk. How much did Jim's lunch cost?

39. ## AP Chemistry

A mixture of argon and mercury vapor used in advertising signs emits light of wavelength 610 nm. Calculate the energy change resulting from the emission of 1.00 mol of photons at this wavelength. Answer in units of kJ/mol.

40. ## physic

A skier traveling at 38.8 m/s encounters a 27.2 degree slope. If you could ignore friction, to the nearest meter, how far up the hill does he go?

41. ## Math

You bought a new car for \$26,500 in 2005, and the value of the car depreciates by \$900 each year. Find a formula for V, the value of the car, in terms of t, the number of years since 2005.

42. ## biology

In Drosophila melanogaster, cut wings (ct) is recessive to normal wings (ct+), sable body (s) is recessive to gray body (s+), and vermilion eyes (v) is recessive to red eyes (v+). All three recessive mutations are X- linked. A female fly with cut wings,

43. ## physic

An airplane flies due north at 200 km/h relative to the air. There is a wind blowing at 70 km/h to the northeast relative to the ground. What are the plane's speed and direction relative to the ground?

44. ## Physics

A circuit contains six 270 lamps and a 18.0 heater connected in parallel. The voltage across the circuit is 120 V. (a) What is the current in the circuit when four lamps are turned on? (b) What is the current in the circuit when all lamps are on? (c) What

45. ## Physics

An electric space heater draws 15.5 A from a 120 V source. It is operated, on the average, for 4.0 h each day. (b) How much energy in kWh does in consume in 30 days? (c) At 11 per kWh, how much does it cost to operate the heater for 30 days?

46. ## Math

What is the greatest six digit even number that matches all of the clues The ten thousands digit is twice the tens digit The hundred thousands digit is more than six The thousands digit can be divided by the ones digit No digit is used more than once

47. ## english

how many adjectives are in this sentence? two large oaks covered your evergreens.

48. ## Math

Tom Invested \$7,000 at 6.5% interest compounded monthly. How much will be in this account after 18 months?

49. ## low math

A section of a boardwalk is made using 15 boards. Each board is 9 1/4 inches wide. The total width of the section is 144 inches. The spacing between each board is equal. What is the width of the spacing between each board? Write your answer in simplest

An electron enters the region of a uniform electric field between two oppositely charged parallel plates as shown, with an initial velocity of 3 x 106 m/s. The electric field between the plates is measured to be E = 200N/C. The horizontal length of the

51. ## Algebra

If an object is thrown vertically upward with an initial velocity of v, from an original position of s, the height h at any time t is given by: h=-16t^2+vt+s(where h and s are in ft, t is in seconds and v is in ft/sec) a ball is thrown upward with initial

52. ## chemistry - vapor pressure

the vapor pressure of pure water at 25C is 23.8 torr. determine the vapor pressure (torr) of water at 25 C above a solution prepared by dissolving 35g of urea (a nonvolatile, non-electrolyte, MW = 60.0G/MOL) IN 76G of water. answer:21 i just want to know

53. ## Physics

A cylinder with a movable piston contains 14 moles of a monatomic ideal gas at a pressure of 2.26 × 105 Pa. The gas is initially at a temperature of 300 K. An electric heater adds 52600 J of energy into the gas while the piston moves in such a way that

54. ## Statistics

A ski patrol unit has six members available for duty, and two of them are to be sent to rescue an injured skier. In how many ways can two of these six members be selected? Now suppose the order of selection is important. How many arrangements are possible

55. ## Chemistry

How many liters of chlorine gas can be produced when 0.98 L of HCl react with excess O2 at STP?

56. ## algebra

Sam is playing songs on her mp3 player. She has 7 hip-hop songs, 9 rock songs, and 7 pop songs. If she has the mp3 player play the songs at random without repeating, what is the probability that the first song will be a rock song and the second song will

57. ## programming

Develop a class diagram for a Message class for a cell phone company. Include generalizations for child classes TextMessage, VideoMessage, and VoiceMessage. The Message class has attributes of account number and price. In addition it has the methods

58. ## Chemistry

Oxygen gas can be generated by heating KClO3 in the presence of some MnO2. 2KClO3 → 2KCl + 3O2 If all the KClO3 in a mixture containing 1.58 g KClO3 and 0.30 g MnO2 is decomposed, how many liters of O2 gas will be generated at T = 25.0°C and P = 760.6

59. ## math

The table below shows the results of an experiment in which a number cube was tossed 20 times. Outcome of toss: 1 2 3 4 5 6 Number of times Outcome Occurred: 4 1 5 5 2 3 (table reads: outcome of toss 1=4number of times,2=1,3=5,4=5,5=2,and6=3) Based on

60. ## Math

to determine the number of trout in a lake a conservationist catches 144 trout, tags them and throws them back into the lake. later 28 trout are caught; 14 of them are tagged. how many trout would the conservationist expect to be in the lake?

61. ## chem

if a rock climber accidentally drops a 56 gram piton from a height of 375 meters, what would its speed be before striking the ground ignore the air resistance

62. ## Finance

Currently you own a portfolio comprised of the following three securities. How much of the riskiest security should you sell and replace with risk-free securities if you want your portfolio beta to equal 90 percent of the market beta? Stock Value/Beta A

63. ## Algebra 2

If an object is thrown vertically upward with an initial velocity of v, from an original position of s, the height h at any time t is given by: h=-16t^2+vt+s(where h and s are in ft, t is in seconds and v is in ft/sec) a ball is thrown upward with initial

64. ## Physics

A hockey puck has a mass of 0.120 kg and is at rest. A hockey player makes a shot, exerting a constant force of 29.5 N on the puck for 0.16 s. With what speed does it head toward the goal?

65. ## Physics

A shopper exerts a force on a cart of 64N at an angle of 30° below the horizontal. a.) How much force pushes the cart in a forward direction? b.) How much force pushes the cart against the floor?

66. ## Chemistry

How many liters of chlorine gas can be produced when 0.98 L of HCl react with excess O2 at STP?

67. ## math

A child pulls a wagon with a force of 33 N by a handle making an angle of 11 degrees with the horizontal. If the wagon has a mass of 5.5 kg, to the nearest hundredth of a m/s2 what is the acceleration of the wagon?

68. ## phyics

If two cars are traveling along a straight road, one behind the other. the first is traveling at a constant velocity of 10 m/s. the second, approaching from the rear, is traveling at 22 m/s. when the second car is 300m behind the first, the driver applies

A 10.2 kg crate is pulled up a rough incline with an initial speed of 1.5 m/s. The pulling force is 123.0 N parallel to the incline, which makes an angle of 14.6◦ with the horizontal. The coecient of kinetic friction is 0.39 and the crate is pulled a

70. ## Chemistry

How many liters of chlorine gas can be produced when 0.98 L of HCl react with excess O2 at STP?

71. ## Math

Can you use inequalities to figure out this coded word? For each problem  Solve and graph the combined inequality.  State whether the combined inequality is a conjunction or disjunction and explain why.  Determine which letter is in the solution

72. ## PHYSICS

A catcher “gives” with a baseball when catching it. If the baseball exerts a force of 460 N on the glove such that the glove is displaced 5.85 cm, how much work is done by the ball? Answer in units of J.

73. ## math

An investor has up to \$450,000 to invest in three types of investments. Type A pays 6% annually and has a

74. ## Trigonometry

a satellite camera takes a rectangular - shaped picture. the smallest region that can be photographed is a 4 - km by 6 - km rectangle. as the camera zooms out, the length l and width w of the rectangle increase at a rate of 3km/sec. how long does it take

75. ## math

What is the net gain or loss in yardage for a football team that gains 6 yards, loses 12 yards and then gains back 15 yards?

A lottery is set up in which players pick six numbers from the set 1, 2, 3, ... , 39, 40. How many different ways are there to play this lottery? (In this game the order in which the numbers are picked does NOT matter.)

77. ## Biology

Which of the following are the final by-products of glucose oxidation during aerobic cell respiration? A. ATP only B. heat only C. carbon dioxide only D. both ATP and heat only E. ATP, heat, and carbon dioxide I know that the following equation is true of

78. ## Math

A volleyball is his upward by a player in a game. The height h (in fee) of the volleyball after t seconds is given by the function h=-16t^2+30t+6. What is the maximum height of the volleyball? explain your reasoning.

79. ## math

Two sides of an equilateral triangle have lengths x+2 and -2x+20 which could be the length of the third side:14-x or 2x+4? A. 14-xonly B. Both 14x and 2x+4 C. 2x+4 only. D. Neither 14-x nor 2x+4

80. ## chemistry

How do I determine how many moles of KMnO4 it takes to neutralize C2O4-?

81. ## Algebra 2

What is the solution to the rational equation x / 2x + 1 + 1 / 4 = 2 / 2x + 1?

Maya Angelou's - I Know Why the Caged Bird Sings is a poem I need help Please anyone 1. Why is Marguerite often embarrassed when Mrs. Flowers visits? 2. What is the relationship between Momma and Mrs. Flowers? 3. What does Mrs. Flowers teach Marguerite

83. ## Chemistry

Calculate the enthalpy change per gram for the combustion of ethane (C2H6(g)).

84. ## Geometry

The legs of a right triangle are 5cm and 12 cm long. Find the lengths, to the nearest tenth, of the segments into which the bisector of the right angle divides the hypotenuse.

85. ## Physics

You take a ride in a fast elevator to the top of a tall building and ride back down while standing on a bathroom scale. During which parts of the ride will your apparent and real weights be the same? During which parts will your apparent weight be less

86. ## physics

A helicopter 8.70 above the ground and descending at 2.60 drops a package from rest (relative to the helicopter). We have chosen the positive positive direction to be upward. The package falls freely. Just as it hits the ground, find the velocity of the

87. ## science

A 13,500 kg jet is moved with a thrust of 5,224,700 Newtons west. what is the acceleration of the jet?

88. ## Social Studies

Advances in all of the following except ____ have led to rapid population growth in recent years. A. Sanitation B. Farming Methods C. Medicine D. Computers

89. ## Accounting

Which of the following is not a "trade or business" expense? A. Mortgage interest on a warehouse b. Mortgage interest on a personal residence c. Cost of goods sold is it B

90. ## physics

A football is kicked at ground level with a speed of 18.0 m/s at an angle of 38.0 degrees to the horizontal. How much does it hit the ground?

91. ## ACCOUnting

Chen Company manufactures basketballs. Materials are added at the beginning of the production process and conversion costs are incurred uniformly. Production and cost data for the month of July 2010 are as follows. Production Data-Basketballs Units Percent

92. ## Chemistry

What is the frequency of light whose wavelength is 7.2x10^-6cm? And is the light visible? Explanation please.

93. ## Physics

An airplane is flying in a horizontal circle at a speed of 105 m/s. The 76.0 kg pilot does not want the centripetal acceleration to exceed 6.35 times free-fall acceleration. a) Find the minimum radius of the plane’s path. Answer in units of m.

94. ## calculus

Find the rate of change of the area of a circle with respect to the radius r. What is the rate when r = 12

95. ## math

A team of scientists found that there were 4 oak trees for every 10 pine trees. How many oak trees were there if they counted 36 more pine than oak?

96. ## MATH

Janet dreams to go on vacation in three years. How much should she invest now so that she will have \$15,000 by that time if the account earns 1 3/8% compounded quarterly?

97. ## Chemistry

I have a question for chem 1LD webworks number 4. it asks to repeat the previous question steps and find the delta H for the high spin and low spin for Fe(ox)3 3- but calculate with B3LYP, 6-31G* instead of a semi-empirical

98. ## tax income

Tom and Betsy, who are married filing jointly, reported a standard deduction of \$11,400 on their 2010 tax return. They paid \$500 to the state for income taxes in 2010. In 2011, they received a \$125 refund of state taxes paid in 2010. What is the amount

99. ## geometry

An isosceles triangle has a base of 9.8 units long. If the congruent side lengths have measures to the first decimal place, what is the shortest possible length of the sides.