# Questions Asked onSeptember 19, 2012

1. ## chem

Potassium nitrate has a lattice energy of -163.8 kcal/ mol and a heat of hydration of -155.5 kcal/ mol . How much potassium nitrate has to dissolve in water to absorb 105kj of heat? Answer in kg.

2. ## chemistry help!

Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 105 kJ of heat?

3. ## chemistry

If you analyzed each of the substances NaBr, KOH, CrPO4, Pb(OH)2, RbCl, LiNO3 by mixing them with water in a beaker, which substances would be most likely to fall to the bottom of the beaker? 1. KOH and Pb(OH)2 2. CrPO4 and LiNO3 3. NaBr 4. RbCl and LiNO3

4. ## Science

you have 100ml of water in a beaker. you add 20 ml of table salt. the water level rises to only 105 ml.

5. ## chemistry

Which of the species KClO2, NH4Br, HNO2, PbS is/are insoluble in water? 1. NH4Br and NH3 2. KClO3 3. PbS 4. HNO2 5. All of these

6. ## Chemistry

Ethyl butyrate is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst. i) Given 8.45g of butanoic acid

7. ## chemistry

Which of the following aqueous solutions should form a precipitate with aqueous Fe(NO3)3? 1. KNO3 2. KCl 3. K2SO4 4. KOH

8. ## Physics

During a baseball game, a batter hits a high pop- up. If the ball remains in the air for 6.0s, how high does it rise? Hint: calculate the height using the second half of the trajectory

9. ## chemistry

Consider the following reaction CaCl2(aq) + 2Ag2SO4(aq) ! CaSO4(?) + 2AgCl(?) .Which of the following statements is true? 1. Both CaSO4 and AgCl will precipitate from solution. 2. Neither CaSO4 nor AgCl will precipitate from solution. 3. CaSO4 will

10. ## chemistry

Which one of the following substances is LEAST soluble in water? 1. BaCO3 2. KSCN 3. Na3PO4 4. RbOH 5. LiBr

11. ## chemistry

Suppose that you wanted to be sure that a metal ion, any metal ion, would dissolve in water. What salt of the metal ion compound would you choose? 1. the hydroxide (OH−) salt of the metal ion 2. the carbonate (CO2− 3 ) salt of the metal ion 3. the

12. ## history

1-Which of the following statements about literary movements is NOT true? (1 point) A A literary movement is a period that shares a particular set of ideas, concerns, or characteristics. B Ideas, concerns, or characteristics may be shared by literary

13. ## AP Chemistry

In the reaction below, 16 g of H2S with excess O2 produced 8 g of sulfur. ? H2S + ? O2 → ? S + ? H2O . What is the percent yield of sulfur? Answer in units of %

14. ## Literary Analysis and Composition I

1. What roles do the adults or older figures play in the lives of the various narrators? Select a figure from each of the four memoirs and write one sentence answering the question for each memoir. Answer: 1. Barrio Boy- 2. A Cub Pilot- 3. No Gumption- 4.

15. ## chemistry

Which response includes all of the following LiOH, KOH, Ni(OH)2, Mg(OH)2, Ca(OH)2 that are insoluble bases, and no others? 1. Mg(OH)2 2. LiOH, Mg(OH)2, Ca(OH)2 3. Mg(OH)2, Ca(OH)2 4. Ni(OH)2, Mg(OH)2 5. LiOH, Ni(OH)2

16. ## chemistry

Which of the following aqueous solutions should NOT form a precipitate with aque- ous Ba(NO3)2? 1. K3PO4 2. K2SO4 3. K2CO3 4. KOH

17. ## math

Farmer Ben has only ducks and cows. He can't remember how many each he has, but he really doesn't need to remember. He does know that he has 22 animals, which is his age. He also remembers that those animals have a total of 56 legs, which is his father's

18. ## PHYSICS!

A diver leaves a 3m board on a trajectory that takes her 2.5m above the board and then into the water a horizontal distance of 2.9m from the end of the board. At what speed did she leave the board? At what angle did she leave the board?

19. ## chemistry

Calculate the amount of heat required to heat a 3.7{\rm kg} gold bar from 30^\circ {\rm C} to 61^\circ {\rm C}. Specific heat capacity of gold is 0.128 \rm J/g ^\circ C

20. ## chemistry

In choosing a primary standard we generally choose something that 1. All of these are properties we want in a primary standard. 2. has a low percent purity. 3. None of these are properties we want in a primary standard. 4. has several different possible

21. ## chemistry

A variety of ions including Na+, K+, NH4 +, Pb2+, Fe2+, NO3 −, Cl−, Br−, S2−, and CO3 2− are mixed in a beaker of water. If you analyzed the precipitates, which substances would you expect to find? 1. PbS and FeCO3 2. FeCl2 and KCl 3. NaBr and

22. ## AP Chemistry

How many grams of sucrose (C12H22O11) must be dissolved in 60 g water to make a solution in which the mole fraction of sucrose is 0.4? Answer in units of g.

23. ## AP Chemistry

What volume of 3.16 M HNO3 is required to prepare 524 mL of a 0.2 M HNO3 solution? Answer in units of mL.

24. ## physical science

a weightlifter raises a 70 kg barbell from the floor to a height of 2.2m in 1.2s. What was his average power output during the lift?

25. ## geometry

Naomi draws a portion of a figure as shown. She wants to construct a line segment through R that makes the same angle with as .

26. ## university of the west indies

The pH of a 0.164 M aqueous solution of dimethylamine is 11.98. Write the ionization equation, calculate the values of Kb and pKb and comment on strength of the base....

27. ## earth

a space traveller determines the radius of a planet to be half of earth . After landing on its surface , he finds the acceleration due to gravity to be twice of that of surface of earth. Find the ratio of mass of planet to the earth

28. ## Physics

A man pushes a lawn mower on a level lawn with a force of 200N it 40% of this force is directed downward how much woek is done by the man in pushing the mower 6.0m Q. It the man in the above question expended 60 W of power in pushing the mower 6.0m, how

29. ## Physics

A child’s toy consists of plastic attached to a spring. The spring is compressed against the floor a distance of 1.48 cm, and the toy is released. The acceleration of gravity is 9.8 m/s2 . If the toy has a mass of 109 g and rises to a maximum height of

30. ## chemistry

Do impurities raise or lower the refractive index of a liquid? Please explain, I can't find it anywhere.

31. ## physics

A 3800 kg car travels around an unbanked corner at the recommended speed of 65 km/hr. the radius of curvature is 80 m. a) what is the force that the road exerts on the car to keep it in motion around the corner? b) what force would the road need to exert

32. ## Chemistry

The bromine content of the ocean is about 65 grams of bromine per million grams of sea water. How many cubic meters of ocean must be processed to recover 1.0 pounds of bromine if the density of sea water is 1.0 x 103 kg/m3?

33. ## Finance

You are planning to save for retirement over the next 35 years. To do this, you will invest $770 a month in a stock account and$370 a month in a bond account. The return of the stock account is expected to be 9.7 percent, and the bond account will pay 5.7

Kiara bought 78 stickers .She bought 6 strips of 10 and some singles How many singles did she buy.? Write an equation for each combination of singles and strips.

35. ## language arts

Identify the term that correctly identifies the italicized word(s) in each sentence. 7. Listening to the mix CD my brother made for me, I began to hope he would make me another. (1 point) adverbial phrase gerund phrase infinitive phrase participial phrase

36. ## Chemistry

identify a chemical reagent that can be used to distinguish CaCl2 (soluable) from CaCO3 (insoluable). What is the distinguishing observation?

37. ## Intermediate algebra

if a positive number is increased by 70% and then the result is decreased by 50% what is the overall percentage change

38. ## Organic Chemistry

cyclohexane=1.4264 toluene=1.4967 at 20˚C Mixture=1.4563 at 20˚C Assuming that the relationship between refractive index and concentration is linear, calculate the composition of the mixture. What do I do? Formula?

39. ## physics

At a certain instant a moving object comes to momentary rest. Is it accelerating at that moment?

40. ## Finance

Suppose an investment offers to double your money in 12 months. What rate of return per quarter are you being offered?

41. ## Science

Xylem dries up and dies what is the effect

42. ## Chemistry

How many moles of H_2 are needed to produce 13.27g of NH_3?

43. ## Coporate Finance

Exotic Cuisines Employee Stock Options As a new graduate, you've taken a management position with Exotic Cuisines, Inc., a restaurant chain that just went public last year. The company's restaurants specialize in exotic main dishes, using ingredients such

44. ## Precalculus

What is the doubling time of prices which are increasing by 5 percent per year?

45. ## pharmacy calculations

1.a newborn weighs 3,000 g. what is his weight in kilograms? 2.a newborn weighs 3,000g. what is his weight in pounds? 3.a stock bottle contains 2.5 liters of solution how many 2oz bottles can be filled using this solution? 4.you need to give 6mg of a drug.

46. ## Science

A man pushes a lawn mower on a level lawn with a force of 203 N. If 44% of the force is directed horizontally, how much work is done by the man in pushing the mower 5.4 m?

47. ## physics

A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

48. ## imp4

Pow 3 "a sticky gum" revisited Gumballs are 1 penny each. The kids each want a different color. what is the maximum spent with each generalization. create formulas for the following. Generalize the number of children. Generalize the number of gum ball each

49. ## chemistry

We add excess NaCl solution (58.44 g/mol) to 56 mL of a solution of silver nitrate (AgNO3 169.88 g/mol), to form insoluble solid AgCl. When it has been dried and weighed, the mass of AgCl (143.32 g/mol) is found to be 1.25 grams. What is the molarity of

50. ## Physics

A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.15 s later. (a) Assuming constant acceleration, what was the magnitude of the car's acceleration before impact? _______ m/s2 (b) How fast was

51. ## SUBJECT

Which of the following statements about literary movements is NOT true? A A literary movement is a period that shares a particular set of ideas, concerns, or characteristics. B Ideas, concerns, or characteristics may be shared by literary movements. C

52. ## Chemistry

chloroform (chcl3) has a Hvap of 29.6 kj/mol and its boiling point occurs at 61.7c. the specific heat capacity of liquid chloroform is 0.622 J/gC while that of the gas is 0.714 J/gC. How much energy (in kJ) needs to be removed to condense 250 g of gaseous

53. ## physical sciencei

is the work needed to bring a car's speed from 0 to 10 km/h less than, equal to or more then the work needed to bring its speed from 10 to 20 km/h? if the amounts of work are different, what is the ratio between them?

54. ## physics

When baseball players throw the ball in from the outfield, they sometimes allow it to take one bounce before it reaches the infield on the theory that the ball arrives sooner that way. Suppose the angle at which a bounced ball leaves the ground is the same

55. ## chemistry

HCN is mixed with water. Which is the best description of what you would expect to find in the solution? 1. CN+, OH−, and water molecules 2. HCN molecules and water molecules 3. H2CN+, OH−, and water molecules 4. HCN molecules, H3O+, CN1−, and water

56. ## Math

What is the doubling time of prices which are increasing by 5 percent per year?

57. ## Physics

Two objects are connected by a light string that passes over a frictionless pulley. The incline is frictionless, m1 = 2.00 kg, m2 = 4.00 kg, and theta= 60.0°. (b) Find the accelerations of the objects. Magnitude (c) Find the tension in the string. N (d)

58. ## physical science

a 1kg object has kinetic energy of 1J when its speed is?

59. ## Physics

During practice, a soccer player kicks a ball, giving it a 32.5 m/s initial speed. It travels the maximum possible distance before landing down field. (a) How much time does the ball spend in the air? (b) How far did the ball travel?

60. ## Chemistry

suppose the density of 100.0 mL of some liquid was found to be 0.815 g/mL. What would be the specific gravity of 20.0 mL of this liquid?

61. ## math

in a class one quarter of students have blonde hair and brown eyes and one third have brown eyes and blonde hair what fraction of the class in total have brown eyes

62. ## Physics

Someone in a car going past you at the speed of 23 m/s drops a small rock from a height of 1.9 m. How far from the point of the drop will the rock hit the ground? The acceleration due to gravity is 9.8 m/s 2 . Answer in units of m

63. ## chemistry

Are bond energies (single and multiple bonds) applicable only to gas phase?? For instance, I can use the bond energy data to calculate for enthalpy of reaction for the formation of water: 2 H2(g) + O2(g) -> H2O(g) But I can't directly use it to calculate

64. ## chemistry

We add excess Na2CrO4 solution to 27.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.420 grams. What is the molarity of the AgNO3 solution? Answer in

65. ## chem

Are bond energies (single and multiple bonds) applicable only to gas phase?? For instance, I can use the bond energy data to calculate for enthalpy of reaction for the formation of water: 2 H2(g) + O2(g) -> H2O(g) But I can't directly use it to calculate

66. ## Physics

Imagine a very large nonconducting plate that has a uniform surface charge density σ =1 μC/m2; it also shows a point charge Q = -3 μC at distance d = 0.3 m from the plate. Both are fixed in place. We choose the origin of an x-axis at Q. At what positive

67. ## ECON 4346

4-The three fundamental economic questions of what, how, and for whom: a-exist because of scarcity. b-are much more serious in a socialist system. c-are not serious in a capitalistic system. d-are not relevant in the industrialized world of today. 5-When

68. ## physics

An apple falls from a tree and hits the ground 9.93 m below. With what speed will it hit the ground? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

69. ## chemistry

Silver nitrate (AgNO3) reacts with sodium chloride as indicated by the equation AgNO3 + NaCl ! AgCl + NaNO3 . How many grams of NaCl would be re- quired to react with 511 mL of 0.38 M AgNO3 solution? Answer in units of grams

70. ## chem

a student paid little attention to the size of his burner flame while heating a 0.979 gram sample of calcium oxalate monohydrate. The final mass of the cooled solid was 0.670 gram. Was the reaction product anhydrous calcium oxalate?

71. ## AP Chemistry

When 0.055 moles of lead(II) nitrate are dissolved in enough water to make 803 mililiters of solution, what is the molar concentration of nitrate ions? Answer in units of M.

72. ## physics

A man walks 3 miles east in 1 hour at a constant velocity, then walks 2 miles east at a constant velocity in 20 minutes, then 2 miles east at a constant velocity in 40 minutes, then rests for 1 hour and then turns around and walks 8 miles west in two

73. ## PHYSICS

Two point charges are placed on the x axis as follows: Charge q1= 4.20 is located at x= 0.185 , and charge q2= 4.80 is at x= -0.280 . What are the magnitude and direction of the net force exerted by these two charges on a negative point charge A =

74. ## Science

Batteries change ____ energy into _____ energy Chemical and electric Converting the suns energy into electricity does not work if it is ____ time or there is ___ weather night and bad? The suns energy can be turned into electrical energy or ___ energy

75. ## Math

The half-life of radioactive strontium-90 is approximately 32 years. In 1961, radioactive strontium-90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. How many years does it take until only 8

76. ## chemistry

How many milliliters of a 0.5 molar HCl solution are needed to react completely with 11 grams of zinc according to the following equation? ? HCl + ? Zn ! ? ZnCl2 + ? H2 Answer in units of mL

77. ## math

some kangaroos can cover 30 feet in a singke jump! if a kangaroo could jump like that 150 times in a row, how much farther would it need to go to cover a mile? (1 mile = 5,280 feet)

78. ## physics

what is the electric charge force between two chaged particles (q1=+5C and q2=+6C) if the chardes are 2 meters apart?

79. ## Math

A 51 meter rope is cut into 2 pieces so that one piece is 6 meters longer than four times the shorter piece. Find the lengths of both pieces.

80. ## Grammar

Which of the following sentences displays an INCORRECT use of interjections? A.No, I have not told Laura about the surprise! B.Great! I will make a reservation for the restaurant right away. C.Well, now that I think about it, maybe we should choose another

81. ## physics

A barge is hauled along a straight-line section of canal by two horses harnessed to tow ropes and walking along the tow paths on either side of the canal. Each horse pulls with a force of 540 N at an angle of 12° with the centerline of the canal. What is

82. ## history

Thomas Jefferson and Thomas Paine shared a similar purpose for writing. What was their purpose? (1 point) to express and reflect to persuade to inform to invite

83. ## AP Chemistry

For the reaction ? ZnS + ? O2 →? ZnO+? SO2 , what is the maximum amount of ZnO which could be formed from 14.06 g of ZnS and 5.56 mol of O2? Answer in units of g

84. ## physical science

a yo-yo is swung in a vertical circle in such a way that its total energy KE and PE is constant. At what point in the circle is this speed maximum? A minumum? why? (b) if the yo-yo has a speed of 3 m/s at the top of the circl, whose radius is 80 cm, what

85. ## Math

A man wants to remove a tall pine tree from his yard. Before he goes to home depot, he needs to know how tall an extension ladder he needs to purchase. He measure the shadow of the tree to be 225 feet long. At the same time he measures the shadow of a 4

86. ## chemistry

What mass of silver nitrate (AgNO3) is re- quired to prepare 400 g of a 3.50% solution of AgNO3? 1. 14 g 2. 0.00875 g 3. 114.28 g 4. 1400 g

87. ## chemisry

An unknown amount of water is mixed with 350 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 52.5 mL of 6 M HCl. Calculate the concentration of the di- luted NaOH solution. Answer in units of M

88. ## math

Draw and label line BN. Draw and label point T on it

89. ## physics

A fire hose ejects a stream of water at an angle of 31.5 ° above the horizontal. The water leaves the nozzle with a speed of 24.3 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the

90. ## chemistry

Listerine mouthwash is 21.6%ethyl alcohol by volume. What mass of ethanol is contained in 20.0 mL of mouthwash? (The density of ethanol is 0.789 g/mL.) Answer in units of grams

91. ## Physics

Bob jumps from a 2.0 m high table and wants to jump over a 0.85 m radius ball. How fast must Bob move horizontally to not land on the ball? If we use kinematics equations for projectile, the answer is 2.66 m/s; however, with this velocity the person will

92. ## Physics

An airplane is flying horizontally with a constant velocity of 160 m/s at an altitude of 5100 m when it releases a package. a. How long does it take for the package to reach the ground? (Ignore air resistance.) b. What is the distance between the airplane

93. ## physical science

a 70 kg man and 50 kg woman are in a boat when its motor fails. the man dives into the water with a horizontal speed of 3 m/s in order to swim ashore. if he changes his mind, can he swim back to the boat if his swimming speed is 1 m/s? If not, can the

94. ## chemistry

An ion can be removed from an aqueous solu- tion by 1. the formation of a gas that escapes. 2. formation of a precipitate. 3. the formation of what is essentially a nonelectrolyte. 4. All of these

109. ## phsyics

To move a large crate across a rough floor, you push on it with a force F at an angle of 21¨¬ below the horizontal. The mass of the crate is 31 kg, ¥ìs is 0.57, and ¥ìk is 0.45. Find the force necessary to start the crate moving

110. ## Algebra

Complete the square to form a perfect square trinomial. X^2+4x+____ How do I do this?

111. ## physics

A 52kg teen grabs onto a rope swing. The length of rope between the teen and the pivot point above is 4.5m, and the rope makes an angle of 40o relative to vertical. Calculate his change in potential energy as he swings down and out to the point where the

112. ## Physics

When a 58 gram tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 44 cm. What is the magnitude of the net force acting on the ball?

113. ## Chemsitry - Van Der Waals

The constants "a" and "b" in the van der waals equation are "empirical coefficients". What exactly does that mean? Show that the units for "a" and "b" are appropriate for the the Van der Waals equation?

114. ## us history

why do geographers divide areas into regions

150. ## phyics

find the acceleration if the velocity changes from: a) 2m/s to 4m/s in 4s b) 5m/s to 10m/s in 2s c) 100m/s to 120m/s in 5s d) 86m/s to 94m/s in 4s e) 21m/s to 35m/s in 18s thank you!

151. ## Chemistry

A mixture of iodine solid and sodium chloride ( Hint: iodine is not soluble in water) What method(s) can I use to separate the mixtures? Filtration Evaporation Centrifugation Decant Magnetic attraction Paper chromatography Distillation

253. ## math,social studies and health

Do you know any other websites where I can calculate my grade point average. Thanks.

254. ## Math (Need help FAST!)

Determine if two ratios are equivalent Complete using < > = 5/20 [ ] 4/10 How did YOU do it?

255. ## Maths

Integral of 1/root(2x-x^2)dx

257. ## math

Janet took a standardized test that contained 328 questions. She answered 75% of the questions. How many questions did she answer?

258. ## GEOMETRY

What is the distance between points (3, 1) and (0, –5)? Round to the nearest tenth.

259. ## math

Determine , apermutation or combination 1.The winner and second and third placed in contest woth 10 finalists . 2.Selecting nine books to check out of the library from a reading list of twelve . 3.Selecting three of fifteen flavours of ice cream . 4.An

291. ## math

What's the formula for finding the area of a parallelogram? Thanks!

292. ## Math

The distance to fly direct from Detroit to Los Angeles is about 1,960 miles.The flight takes 4 hours 53 minutes.What is the plane's average speed in feet per second to the nearest foot per second?

293. ## Physics

A beam of X-rays with a wavelength ƒÜ of 0.179nm is directed at an iron crystal whose planes have a spacing of 0.1013nm. How many diffraction peaks (each arising from a different order n) are possible? I'm really not sure how to go about solving this.

294. ## algebra

Determine whether y varies directly with x. If so find the constant of variation k and write the equation. x y 7 11 8 13 9 15 10 17 Can someone please help me and explain

295. ## Math

how could you use point I to estimate the midpoint of each side of the rectangle?

296. ## math

find the mystery number, it is a 4 digit odd number, all the digits are different, none of the digits are 0-9, the tens digit is twice the ones digit, and the hundreds digit is twice th tens digit. the thousands digit is one less than the hundreds digit?

297. ## History

When did Purtains arrive in America?

298. ## math

reason which is greater the greatest whole number with 05 digits or the least whole number with 06 digits

299. ## government

campaign spending tends to be gratly more important for republicans or democrates or challengers and non incumbents raer than incumbents

326. ## Math ASAP

1.-80%(-2) (=,) 120/3 2.-1750%70 (=,) -1008/48 3.240/-80 (=,) -150/50 4.675/-45 (=,) 865/-51 5.-3755%x= -15 6.22=x%(-34) X=-748 7.x%(-17)=-35 8.-680 % x =53 X=-13

327. ## English

e.g. Nasrredin and the Fish How do you pronounce "Nasrredin"?

6.04g

329. ## ECON

A bank vice-president declared that the probability that the bank’s funds were being embezzled was 0.70 and that the probability that an embezzlement would be discovered by the bank examiner was 0.90. Given that the bank examiner does not find the

330. ## Organic Chem

What is the product of C13H10+CH3O

331. ## english

Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina Since Tom is both smart and disinterested I think he is

332. ## math

There is a blue ribbon, a yellow ribbon, and a green ribbon. susan did now wear the yellow ribbon or the green ribbon. Jean did not wear the gren ribbon. Clare wore either the blue ribbon or the green ribbon. what color ribbon did each girl wear?

333. ## Physics

A ball is thrown vertically upward and comes back down. Total time of 7.95 s in air. What is its initial velocity? Neglect air resistance.

334. ## help immeditaly

you have 15 coins, nickels and dimes. d=the number of dimes. write a simplified expression in terms of d for the total amount cents that you have. show work and explain

335. ## Math

I need to make a bar graph using the data set of my last problem. Data Set: 5,7,7,7,11,12,12,13,14,15,16,18

336. ## physics

A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

337. ## calculus

Find c for Rolle's Theorem for f(x) = x3 – 12x on [0,2 3 ]

338. ## pre-calculas

what is the function whose graph is the graph of y=ã+4, but is reflected about the the x-axis. y=

339. ## statistics

Healthy breakfast contains the rating of 77 cereals and the number of grams of sugar contained in each serving. A simple linear regression model considering "sugar" as the explanatory variable and "rating" as the response variable produced the following

340. ## math

i mande 440 at a yard sell in 10 20 i need to have 5 more 10 than 20

21/2m=11/5

342. ## Math

Find the perimeter of semicircle d

343. ## HISTORY

William Bradford wrote Of Plymouth Plantation and A "To My Dear and Loving Wife." B The Day of Doom. C The Voyage of the Mayflower. D The Mayflower Compact. I THINK ITS C OR D BUT IM PRETTY CONFUSED. PLEASE HELP , IF I WERE TO PICK ID PICK C

344. ## Math

Solve each system of equations using substitution. 1.) x+3y=-4 y+x=0 2.) y=2x+3 5x-y=-3 3.) 2y=-4x 4x+2=-11

345. ## English

I am diagramming the sentence: It was excellent from beginning to end. I know the subject is "It", verb "was", subject complement is "excellent" and, I think "from beginning to end" is a prepositional phrase. Am I right or please corrent me.

346. ## Math

solve the ivp dy/dx = 1/(sqrt(1-x^2)) with initial condition y(sqrt(3)/2)=0

347. ## math 5th

number puzzles You say this number when you start at 0 and count by 15. You say this number when you start at 0 and count by 25. This number is less than 200. This number is even.

348. ## history

Explain the GATT principle of nondiscrimination.

349. ## English

1. They will come together to the office. 2. They will come to the office together. (Which one is right? Are both right? Which one is commonly used?)

350. ## Math

1.-80%(-2) (=,) 120/3 2.-1750%70 (=,) -1008/48 3.240/-80 (=,) -150/50 4.675/-45 (=,) 865/-51 5.-3755%x= -15 6.22=x%(-34) X=-748 7.x%(-17)=-35 8.-680 % x =53 X=-13

351. ## sugarhill

i need help with this problem 6/13 devided by 4/39

352. ## English

Volunteering at a day-care center. I have worked at a day-care center. I went there once a month. There were a lot of things to do. I took care of young children. I played with them. I changed their diapers and clothes. I washed the kids, too. I like the