# Questions Asked onOctober 10, 2011

1. ## Physics

A tennis ball on Mars, where the acceleration due to gravity is 0.379 of a and air resistance is negligible, is hit directly upward and returns to the same level 6.20 later. (a)How high above its original point did the ball go? (b)How fast was it moving

Write a subtraction problem involving regrouping that has ted reading 304 pages?

3. ## physics

Two positive charges, each of magnitude q, are on the y-axis at points y = + a and y = -a. Where would a third positive charge of the same magnitude be located for the net force on the third charge to be zero? a) at the origin b) at y = 2a c) at y = -2a d)

4. ## physics

the instruments attached to a weather balloon have a mass of 5.0 kg. the balloon is released and exerts an upward force of 98 N on the instruments. (a) what is the acceleration of the balloon and instruments? (answer is 9.8 m/s^2.. just don't know how to

5. ## Chemistry

Consider the following generic chemical equation 2A + 4B ¨ 3C What is the limiting reactant when 3 moles of A and 4 moles of B are allowed to react?

6. ## calculus

if F(x)=f(xf(xf(x))), where f(1)=2, f(2)=3, f'(1)=4, f'(2)=5, and f'(3)=6, find F'(1).

7. ## calc

A new software company wants to start selling DVDs with their product. The manager notices that when the price for a DVD is 16 dollars, the company sells 134 units per week. When the price is 27 dollars, the number of DVDs sold decreases to 89 units per

8. ## Anatomy

what is the white matter tracts in the ventral portion of the midbrain?

9. ## Physics

A golf ball is hit with a velocity of 24.5 m/s at 35.0 degrees above the horizontal. Find a) the range of the ball, and b) the maximum height of the ball

10. ## CHEMISTRY

At a certain temperature , 0.960 mol of SO3 is placed in a 3.50 L container. 2SO3 ----> 2SO2 + O2 At equilibrium , 0.190 mol of O2 is present. Calculate kc. i know that it starts off by 2SO3 -----> 2SO2 + O2 I 0.960 0 0 C -2x +2x x _____________________ E

11. ## Science

Which of the following pairs of elements would have the most similar chemical properties? A.Boron (B) and Fluorine (F) B.Hydrogen (H) and Helium (He) C.Beryllium (Be) and Magnesium (Mg) D.Carbon (C) and Oxygen (O)

12. ## math

1. Two roads intersect at an angle of 52.7 degrees, with a field in between. A girl is walking on one of the roads 1.5miles from their intersection. Her house lies 0.85 miles from the intersection along the other road. If she cuts across the field to her

13. ## Physics

Compressed air is used to fire a 41.0 g ball vertically upward from a 1.0-m-tall tube. The air exerts an upward force of 3.7 N on the ball as long as it is in the tube. How high (in m) does the ball go above the top of the tube, assuming that the

14. ## elementary statistics

at a particular school with 200 male students, 58 play football 40 plays basketball and 8 plays both. what is the probablity that a randomly selected male student plays neither

15. ## Chemistry

In a combination reaction, 2.22 g of Magnesium is heated with 3.75 g of Nitrogen a) which reactant is present in excess? b) how many moles of product are formed? c) after reaction, how many grams of each reactant and product are present?

16. ## math

In the triangle ABC ,AB=11 cm ,BC=9cm an CA=10 cm..Find area of the triangle ABC

17. ## Physics

Each of 108 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force of 108N. What is the tension in the string connecting block 108 to block 107?

18. ## chemistry 105

Consider the following reaction: Li2S(aq)+Co(NO3)2(aq)-->2LiNO3(aq)+CoS(s) What volume of 0.150 M Li2S solution is required to completely react with 125 mL of 0.150 M Co(NO3)2?

19. ## World History

On what basis were the Khmer people able to coalesce into a single large kingdom? A. Exploiting the flooding of the Mekong River B. Wealth from mining and timber C. Wealth from its trading fleet D. Development of its pottery industry

20. ## chemistry 105

Complete and balance each of the following equations for gas-evolutions. Express answer as a chemical equation. Identify all the phases in your answer. HCl(aq)+K2SO3(aq)--> HCl(aq)+KHCO3(aq)--> HC2H3O2(aq)+NaHSO3(aq)--> (NH4)2SO4(aq)+KOH(aq)-->

21. ## chemistry 105

Sulfuric acid dissolves aluminum metal according to the following reaction: 2Al(s)+3H2SO4(aq)-->Al2(SO4)3(aq)+3H2(g) Suppose you wanted to dissolve an aluminum block with a mass of 14.7 g. What minimum mass of H2SO4(in g) would you need? What mass of H2

22. ## physics

In a local bar, a customer slides an empty beer mug down the counter for a refill. The height of the counter is 1.12 m. The mug slides off the counter and strikes the floor 2.00 m from the base of the counter.

23. ## physics

A box, open at the top, in form of a cube of edge length 40 cm, is constructed from a metal plate. Find the coordinates of the center of mass of the box with respect to x, y, and z coordinate system.

24. ## World History

The Emperor Charlemagne spread Christianity among the Saxons by A. excluding pagans from trade and commerce. B. giving pagans a choice of conversion or death. C. imposing taxes on those who didn't convert. D. by way of exemplary faith that set an example.

25. ## Physics

You are holding a 5 kg dumbbell straight out at arm's length. Assuming your arm is 0.63 m long, what torque is the dumbbell exerting on your shoulder?

26. ## geometry

line BC in one side of a regular n-gon. the sides next to line BC are extended to meet at point W. Find the measure of angle W in terms of n.

27. ## Government US

35. All of the following are true of the Head Start program except that it a. began as part of the War on Poverty in the 1960s . CORRECT c. has been weakened by children’s unsupportive environments at home. I DON'T KNOW d. is fully funded at the present

28. ## Chemistry 105

Which of the following reactions are redox reactions? 1. Al(s)+3Ag^+(aq)-->Al^3+(aq)+3Ag(s) 2. SO3(g)+H2O(l)-->H2SO4(aq) 3. Ba(s)+Cl2(g)-->BaCl2(s) 4. Mg(s)+Br2(l)-->MgBr2(s)

29. ## Physics

An infinitely long line charge of uniform linear charge density λ = -3.00 µC/m lies parallel to the y axis at x = -2.00 m. A point charge of 4.70 µC is located at x = 1.50 m, y = 2.50 m. Find the electric field at x = 2.50 m, y = 2.00 m. I added the

30. ## Calculus

an observer stands 200 m from the launch site of a hot-air balloon. the balloon rises vertically at a constant rate of 4 m/s. how fast is the angle of elevation increasing 30 s after the launch.

31. ## Math

A turtle crawls up a 12 foot hill after a heavy rainstorm. The turtle crawls 4 feet, but when it stops to rest, it slides back 1 1/2 feet. How many tries does the turtle make before it makes it up the hill?

32. ## PHYSICS

In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 151 N/C downward at an altitude of 280 m and 167 N/C downward at an altitude of 430 m. Calculate the volume charge density of the atmosphere,

33. ## Chemistry

Balance each of the following redox reactions and classify it as a combination, decomposition or displacement reaction. a) Mg(s)+H2O(g)->Mg(OH)2(s)+H2 b) Cr(NO3)(aq)+Al(s)->Al(NO3)(aq)+Cr(s) c) PF3(g)+F2(g)->PF5(g)

34. ## physics

A test car with a dummy driver of mass 60 kg was propelled towards a rigid wall. If the speed of the dummy driver just before impact was 40m/s and the time between the collision and the dummy coming to the rest was 0.10 s, calculate: (i) the average

35. ## chemistry

calculate how many mL of 6M HCL are needed to prepare 100mL HCL solution with a concentration of ~1M?

36. ## Physics

Each of 108 identical blocks sitting on a frictionless surface is connected to the next block by a massless string. The first block is pulled with a force of 108N. What is the tension in the string connecting block 108 to block 107?

37. ## physics

A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the end of the slide traveling horizontally. As the drawing shows, one person hits the water 5.00 m from the end of the slide in a time of 0.386 s after

38. ## physics

For women's volleyball the top of the net is 2.24 m above the floor and the court measures 9.0 m by 9.0 m on each side of the net. Using a jump serve, a player strikes the ball at a point that is 3.03 m above the floor and a horizontal distance of 8.4 m

39. ## physics

what is the net force needed to lift a full grocery sack weighing 210N uniformly?

40. ## physics

the instruments attached to a weather balloon have a mass of 5.0 kg. the balloon is released and exerts an upward force of 98 N on the instruments. (a) what is the acceleration of the balloon and instruments? (answer is 9.8 m/s^2.. just don't know how to

41. ## science

Determine the slope of an area, given the following: Start measuring at 700 feet. Measure a distance of four miles, and end at an elevation of 2432 feet.

42. ## physics

shows a plot of potential energy U versus position x of a 0.310 kg particle that can travel only along an x axis under the influence of a conservative force. The graph has these values: UA = 9 J, UC = 20 J and UD = 24 J. The particle is released at the

43. ## Physics

A 2.3 kg steel block is at rest on a steel table. A horizontal string pulls on the block. The coefficient of static friction for steel on steel is 0.80 (page 163) while the coefficient of kinetic friction is 0.60 while the acceleration due to gravity is

44. ## Math

Charlie estimated 293 - 44 and got a difference of about 250. Is this a reasonable estimate? Explain

45. ## Physics help!!

A truck travels beneath an airplane that is moving 120 km/h at an angle of 24◦ to the ground. How fast must the truck travel to stay beneath the airplane? Answer in units of km/h What is the magnitude of the vertical component of the velocity of the

46. ## chemistry

On an activity series for metals aluminum is more active than hydrogen. Write the correct reaction to describe putting a piece of aluminum foil (pure aluminum) in 100 mL of hydrochloric acid

47. ## Physics

In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room." The radius of the room is 5.5 m, The coefficient of static friction is μ=0.1. What is the minimum rotation frequency such that the people will not slide down the wall

48. ## physics

Illustrate in diagram a force 150N is inclined a 50 to the horizontal direction find it component in the horizontal

49. ## ap chem

P4 + F2 = PF3 What mass of F2 is needed to produce 120 gm of PF3, if the reaction has 81.1 % yield?

Writing in Math: Write a word problem using the number sentence 4.23 x 10 = 42.3. I don't understand how to answer this question

51. ## physics

A ball is thrown horizontally from a height of 18.18 m and hits the ground with a speed that is 4.0 times its initial speed. What was the initial speed?

52. ## Chemistry

I have no idea where to even start with this problem on my pre-lab! For part of the experiment, you will need to prepare 100 mL of 0.025 M CH3CO2H, starting from commercial "glacial" acetic acid, which has a concentration of 17.4 M. This is best done by

53. ## physics

A shell is fired from a gun with a muzzle velocity of 466m/s at an angle of 57.4 degrees with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is

54. ## Chemistry

Tartaric acid has two acidic (ionizable) hydrogens. The acid is often present in wines and precipitates from solution as wine ages. A solution containing an unknown concentration of the acid is titrated with NaOH. It requires 22.62 mL of 0.2000 M NaOH

55. ## chem

a volume of 10.0 ml of a 0.00450 M solution of Cl- ions are reacted with 0.500 M solution of AgNO3.What is the maximum mass of AgCl that precipitates?

56. ## physics

In ammonia (NH3) molecule, the three hydrogen atoms form an equilateral triangle, the distance between the centers of the atoms being 16.28x10^-11 m, so that the center of the triangle is 9.40x10^-11 m from each hydrogen atom. The nitrogen atom is at the

57. ## physics

Traffic shock wave. An abrupt slowdown in concentrated traffic can travel as a pulse, termed a shock wave, along the line of cars, either downstream (in the traffic direction) or upstream, or it can be stationary. Figure 2-22 shows a uniformly spaced line

58. ## Science

What waste disposal methods are available to humans and how might they be more effective. What initiatives or incentives could governments create to better equip citizens for managing their own waste?

59. ## psychology

The observational learning approach states that stereotypes and prejudices are acquired through what? a)repressing of wants and needs excessively B)experiencing maturation of innate ideas C)watching and imitating a model’s behavior D)pairing conditioned

60. ## Science

Would you normally expect neon (Ne) to form compounds? A. Yes, but neon is a rare gas and difficult to obtain. B. No, neon needs six electrons to fill its outermost level. C. Yes, neon needs six electrons to fill its outermost level. D. No, neon has eight

61. ## Physics

Two blocks are at rest on a frictionless, 20 degree incline. What are the tensions in the two strings if block 1= 5.3kg and block 2= 2.4kg?

62. ## Chemistry

When a 5.50g sample of solid sodium hydroxide dissolves in 100.0 g of water in a coffee cup calorimeter, the temperature of rises from 21.6 degrees C to 37.8 degrees C. Calculate Change of heat for the reaction in kJ (also in kJ/mol NaOH) for the solution

63. ## physics

What is the minimum work needed to push a 950 kg car 890 m up along a 8.0 degree incline? Assume the effective coefficient of friction retarding the car is 0.22.

64. ## Physics

If you drop a 1.0 kg weight from a height of 1.0 m, how many joules of kinetic energy will it have when it reaches the ground? Can I use the equation for work: W = F*s to find the kinetic energy? Or would I have to find the velocity of the weight as it

65. ## PHYSICS HELP!!!!!

A crate starts from rest and slides 8.35 m down a ramp. When it reaches the bottom it is traveling at a speed of 5.25 m/s. The ramp makes an angle of 20.0o with the horizontal. b) What is the coefficient of kinetic friction between the crate and the ramp?

135. ## psychology

Researchers have found that, during childhood: A) girls' gender schemas are more rigid than boys' gender schemas. B)when boys play with girls, the boys lose status. C)boys like it when girls dress and behave like boys. D)girls express stronger preferences

136. ## 11Music

How could I describe Mozart's music using the elements of music? I want to explain the dynamics, rhythm, pitch and harmony.

137. ## College Chem

Write a balanced equation for each reaction including the state symbols of all the reactants and products Co(NO3)2. 6H2O + Ni(NO3)2.6H2O

138. ## economics

Suppose that in this city, the price of a spaghetti dinner changes from $10 to$15. Which of the following statements correctly describes what happens in the calculator? I. There is a reduction in the number of dinners that people buy. II. There is a

139. ## MAth translate please thx

If 5 times the smaller of two numbers is subtracted from twice the larger the result is 16. If the larger is increased by 3 times the smaller, the result is 63. Find the numbers.

181. ## world history

Women were able to own property and hold paying jobs in which empire? A. Asoka's India B. Greece C. Rome D. Persia My answer is B. Greece do you agree or disagree?

182. ## Math-Stats

An insecticide company exposes 10,000 cockroaches to its newest product, and exposes another 10,000 to their previous formula. The researchers use videotape to count how many cockroaches are still alive, and how many appear to be in distress, at 10 second

183. ## College Physics

A students stands at the top of a high vertical cliff and throws calculators into the sea. He throws the calculators horizontally with a speed of 7.4 m/s and observes that each reaches the water below 3.7 s after the release. Neglect air resistance and

184. ## English

Is this okay for a introduction essay on a thesis statement................ Mary Cassatt was an American painter and printmaker. Known to this day as a “painter of mothers and children” She did paintings of Impressionism to record visual reality.

185. ## Pre-Calculus

Could someone help me with this-we learned this today in school but I'm not getting it now that I'm home with my homework-I have lots of these to do can someone help with this one and then maybe it'll click-thank you Find (sqrt3/2 -1/2i)^4 by using

186. ## Calculus

A particle moves along the x-axis with velocity v(t) = -(t-3)² + 5 for [0,6]. a) Find the average velocity of this particle during the interval [0,6]. b) Find a time t* ∈ [0,6] such that the velocity at time t* is equal to the average velocity during

187. ## education

in the second circle of hell(canto v), where the lustful or carnal are punished, what beautiful woman from the ilad and what beautiful woman from the aenield both appear?

188. ## physics

In getting ready to slam-dunk the ball, a basketball player starts from rest and sprints to a speed of 8.49 m/s in 1.89 s. Assuming that the player accelerates uniformly, determine the distance he runs.

189. ## algebra

length of rectantular rug is 7/6 its width. rug is placed on floor with 1 foot margin all around. area of floor is 4 times that of margin. find the dimensions of the room.

190. ## Chemistry

During a reaction, you see that the heat (q) given off is 4.6 cal calories. Knowing that you used a mass of 100 g and that the temperature change was 7.85°C, what is the specific heat of this reaction?

191. ## algebra

height of a projectile thrown straight up from top of 480 ft hill t seconds after bing thrown up with initial velocity vo ft/s is h = -16t^2 +vot + 480 If vo = 96, find times when the projectile will be at a) height of 592 ft above the ground and b) crash

192. ## Math

How do you do asymptoes or what ever you call them? and how do you do the equations for the different graphs for transformation?

193. ## maths pls help urgent

A supermarket had an equal number of bottles of shampoo and conditioner. After selling 82 bottles of shampoo and 178 bottles of conditioner, the no. of bottles of conditioner was 1/5 of the bottles of shampoo left. How many bottles of shampoo were left?

194. ## history project

I need to know these questions What is Immigration? Why did immigration happen? How did immigration happen? When did immigration happen? Where did immigration take place? and Who was involved in it? please help me

A 0.267kg ball is thrown straight up from 2.20m above the ground. Its initial vertical speed is 9.20m/s. A short time later, it hits the ground. Calculate the total work done by the force of gravity during that time.

196. ## chem

1.00 mL of a 0.0500 M sucrose solution is transferred to a 100 mL volumetric flask, and the flask brought up to volume. 5.00 mL are taken from the 100 mL volumetric flask and transferred to a 0.500 L flask, and it is brought up to volume. What is the

197. ## MATH MIDDLE SCHOOL

I love chocolate and coffee. I begin by making one cup of hot chocolate. I drink half of my cup and then I fill the cup with coffee. I stir the new mixture and drink half of the cup and then fill the cup again with coffee. I continue this pattern until I

198. ## English

1. We know him to live in New York. 1-1. He is known to live in New York. 2. We know him to be living in New York. 2-2. He is known to be living in New York. (What is the difference between #1 and #2?)

199. ## Science

Suppose you had two samples of the same radioactive isotope one that weighs 25g and one that weighs 50g would the same number of particles be ejected from each sample in the first hour,explain.

200. ## algebra

Find the max or min value for y given the restictions on x. y= x^3 -x^2 -6x a) 0

201. ## algebra

x2-2x-13=0 I need square root on both sides.

202. ## Chemistry

During a reaction, you see that the heat (q) given off is 4.6 cal calories. Knowing that you used a mass of 100 g and that the temperature change was 7.85°C, what is the specific heat of this reaction?

203. ## Chemistry

Is BCI3 polar or non polar ,identify the negative ends

204. ## MATh ( translate words into number)

40. The greater of two numbers is 1 ore than twice the smaller. Three times the greater exceeds 5 times the smaller by 10. Find the numbers. How do i start please explain. WHere do i start and how to do do this. AM very confused.

205. ## Thomas Pullen

it is greater than 30 and less than 40 ifyou add the digits, the sum is 10.

206. ## Social studies

Can you please list so reason why the Reformation of the 16th century was a religious movement?

207. ## chemistry

what is the molality of 12.5 solvation of glucose i water?The molecular weight of glucose is 180.00

208. ## science

An average diameter of a star is approximately 109 m and an average diameter of a galaxy is 1021 m. Considering the given data, apply a sense of scale calculation to determine if when a galaxy’s diameter is scaled down to the length of Manhattan (21.6 km

209. ## math

Assume r and s are the roots of the quadratic equation ax^2 + bx + c = 0, show that r + s = -b/a and rs = c/a.

210. ## Government USA-Help

27. Welfare policy in the United States a. is an issue that often divides the two political parties. b. is based entirely on the principle of need. I am sure about B but why can't it be A ?

211. ## budgeting

Another term for disposable income is _______income A.spendable B.gross C.taxable D.earned i got A

212. ## chemistry

How many moles of O2 are needed to form 3 moles of Al2O3 from the element

213. ## Physics

An object of mass 1.4kg is placed 11.5 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the object remains fixed on the turntable until a rate of 37 rpm is reached, at which point the object

214. ## Art

Is there any art websites I like drawing, painting, collage computer art, manga drawings, fashion designs, & drawing cute doodles

215. ## writting

looking for help with apostrohe catastrophe in the following it is, use_________. if not,use_______ there is, use______. if not,use_______ who is, use________. if not, use______ they are, use______. if not, ____ or __ you are, use_______. if not,

216. ## Chemistry

A decomposition reaction is one in which a reactant decomposes to a limiting reactant and a theoretical reactant. True or False

217. ## chemistry

If a person runs 1.87 meters per second, how many minutes will it take for them to complete a 5.0 kilometer race

218. ## Chem112

1ml 0.1M HCl 99ml 1.4M acetic What is the pH of the two?

219. ## Cultural Diversity

I have to identify and describe which, if any, of the following creation and consequence situations the group has faced: (I chose african americans) · Creation: migration, annexation, or colonization · Consequences: extermination, expulsion, secession,

220. ## chemistry

What is the mass of hydrogen peroxide, H2O2, in a 250 g sample of a 2.75% by weight solution?

IF C IS THE NUMBER OF CUPS THEN 1/2C CAN BE USED TO FIND THE NUMBER OF PINTS FOR 12 CUPS MY ANSWER 1(1/2C) X 12= (1X.5)X12 .5X 12=6 ANS 6 PINTS IS THIS THE RIGHT WAY TO WORD THIS PROBLEM

222. ## physics

A women walks 2m in the direction 60degrees north of east. find her final displacement.

223. ## Calculus

Define the quotient rule.

224. ## algebra

I NEED HELP SOLVING THIS PROBLEM 3.5(.4)/2.6 + 2.6/.4= PLEASE EXPLAIN AND SHOW HOW TO SOLVE

225. ## Math

A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a.

factor 50x^2-72

227. ## trigonometry

the length of a rectangle is 2cm longer than the width. if its length and width are both increased by 4cm, its area is increased by 72 cm^2. find the dimensions of the original rectangle.

228. ## writing

As a rule of thumb ,experts say most married people should carry____times their net pay in life insurance coverage. A.2 B.3 C.4 D.5 i got C

229. ## math

ball thrown up from top of 96 foot high tower with initial velocity of 80 ft/s. when does ball reach max height and how high is it at that time?

230. ## English

Thank you. Do you say "he will become Thane of Cowdor OR the Thane of Cowdor? I looked up prophesy in the dictionary and found out that it can be both a noun or a verb. (to Prophesy: to say what will happen in the future, especially using religious or

231. ## Calc

an observer stands 200 m from the launch site of a hot-air balloon. the balloon rises vertically at a constant rate of 4 m/s. how fast is the angle of elevation increasing 30 s after the launch.

232. ## Science

The global water cycle provides renewable water, but a number of factors affect how much freshwater is available for human consumption. Describe these factors and circumstances. When do human interventions in water availability pose serious problems to

In this exercise pick a sector – e.g. food retailing, airlines, chemicals, public administration – and draw a map of their particular version of this process. How does it work out in practice? Where are they likely to need or to place most emphasis?

234. ## Physics

You swing a 3.24-kg object in a vertical circle of radius 0.920 m. The speed of the object at the top of the circle is 3.25 m/s; the speed of the object at the bottom of the circle is 6.90 m/s. Find the tension in the rope tied to the object at: a) The top

235. ## writing

Freedom Doesn’t Come Free What is something you can never show much gratitude for? Well, veterans have done many wonderful things for our country, especially freedom. Freedom is a debt that can we can never repay veterans for. One reason I said they

236. ## The Yakuza (Opinion)

The presence of the Yakuza is still prevalent in modern Japanese society and culture. However, there are many people who want to get rid of the Yakuza in spite of their prevalence - seeing their existence as harmful and detrimental to the Japanese image.

237. ## Chemistry

A chemist has 250.0 mL of a bright blue (caused by Cu+2) aqueous solution that contains 21.16 g of CuCl2. He adds 12.0 g of finely ground silver to the blue solution and lets the solution sit covered overnight. When he returns he finds:

238. ## maths help plz

A computer table, 4 bar stools and a cabinet costs a total of $352. Each bar stool costs 1/5 as much as the computer table. The cabinet costs$40 less than the table. a)How much is the computer table b)What is the difference in the cost between the cabinet

239. ## math

When is an exact number needed and when is an estimate okay?

240. ## algebra

GRAPH .08.04.11

241. ## English

How can I write a one paragraph introduction essay on a thesis statement? Thank you

242. ## world history

The animating principles of Benedict's rules for monks are the quest for salvation and A. the application of personal resistance to God's work. B. the subordination of willfulness. C. knowledge obtained solely through communion with God. D. extremes of

243. ## social studies

Children whose parents encourage them to use gestures in their development of communication: A)ave difficulty mastering a large vocabulary. B)have better comprehension. C)are frustrated in their communication. D) watch people's gestures more than they

244. ## Precalculus

Can an even degree polynominal have exactly one x intercept?

245. ## Math

How do I solve for negative modular arithmetic? Here is an example: -45 mod 13 = 7, but how?

246. ## Probability

Consider an RV X with the following density given parameters α and γ . f (x) = {(1/γ)e^(-(x-α)/γ) if x>α {0 if x ≤ α. a. Find E[X]. b. Find V[X]. c. If α = 4, γ = 2, ﬁnd P (X > 8). d. Find P (X < α + 3γ ). e. Find the cdf for X , F (x).

247. ## Probability

Let Y be a Normal RV with mean 7 and standard devi- ation 4. a. Find P (Y = 7). b. Find P (Y < 5). c. Find P (Y ≥ 10). d. Find P (Y < 0). e. Find E[Y].

248. ## chemistry

what quantity of heat is rewuired to raise the temperature of 15g of iron from 0 degrees celsius to 100 degrees celsius?

249. ## Application problems with fractionsþ

Cheryl is fitting a turquoise stone into a bear claw pendant. Find the diameter of the hole in the pendant. (The diameter, which is 7/8 inches, is the distance across the center of the hole. The two areas outside the hole are 3/16 inches in length.)

250. ## Calc

Recall that the acceleration a(t) of a particle moving along a straight line is the instantaneous rate of change of the velocity v(t); that is, a(t) = d/dt v(t) Assume that a(t) = 32 ft/s². Express the cumulative change in velocity during the interval [0,

251. ## maths.reposting as i need a non algebraic way to s

A computer table, 4 bar stools and a cabinet costs a total of $352. Each bar stool costs 1/5 as much as the computer table. The cabinet costs$40 less than the table. a)How much is the computer table b)What is the difference in the cost between the cabinet

252. ## math

radiators sell for \$350. Let x be radiators. profit shown by equation p= -.01x^2 +375x -600,000. What number of radiators will produce the larget possible profit? What is the largest possible profit?

253. ## geography

Can you check my answers please? 1. Which country has the largest land area in the world? The U.S.A. 2. Which ocean is larger, the Arctic or the Indian? The Indian Ocean 3. Beijing is to China as Washington D.C. is to the Inited States. We had to fill in

254. ## English

Does Miss and Ms. fit under the category of homonyms or homophones, or are they under another category?

IF C IS THE NUMBER OF CUPS THEN 1/2C CAN BE USED TO FIND THE NUMBER OF PINTS FOR 12 CUPS

256. ## Math

If there are 9 flavors of ice cream and each student orders 2 scoops with noone getting the same order - how many students are there?

257. ## English

which of the following should you not do in the close of a job interview? A. give a final explanation for a weakness that you have. B. show enthusiasm for the job. C. summarize your accomplishments and strengths. D. smile and relax

258. ## math

A person gave bags of jellybeans to 11 students. The mimimum was 8 maximum was 21, mode was 14 and median was 15. What was the number of jellybeans each student could have reported to get the landmarks given

259. ## p

Toddlers are able to: A)understand, but not conform to, cultural rules of gender. B)know that a boy stays a boy even with long hair. C)have strong gender identities but not be gender typed. D)label themselves as either boys or girls. I chose A which it

260. ## algebra

_______________________________________ MATH133 Unit 1 Individual Project 2 A 1) The following graph shows the depreciation for the corporate airplane from 2006 to 2009. The plane was purchased new in 2006; therefore, x = 0 represents the year 2006. X –

261. ## Home Insurance

Disabilty insurance is desighned to replace : A : damaged property B : loss or damage to property C : money damages awarded in a law suit against you. D : lost income. I got B.

262. ## math

what are the first 12 multiples of 7,9,3 ?

263. ## math

one number is 15 more than one third of another number. together the two numbers are 35. find the numbers.

264. ## Calculus

Could someone please help me on this question where you find the limit. I'm having a test tomorrow and I'm a little confused. lim -x/√(4-x^2) x-->-2+ Any help would be greatly appreciated. Thanks in advance!!

265. ## geometry

given the measure of angle 1=4x+30 and the measure of angle 3=2x+48 then X=?

266. ## cja 105

Chief Draper has noticed that the behavior of many of his officers reflects a lack of understanding of many basic criminal justice concepts. Last week, he received a complaint about a patrol officer with ten years of experience on the force. The complaint

267. ## Government US

30. Which of the following social welfare programs was supported by a majority of congressional Republicans at the time of enactment? c. the 1965 Medicaid program e. None of these answers is correct. I would say none, since the republicans never supported

268. ## Math

(93.789 - 5.40) x 18.057 = answer should be in proper # of SF My answer is 1596.040173 But my choices are A)1596,B)1600,C)1596.239,D)1590,E)1596.2 So would the answer be 1590 because of the 3 SF Thank You!

269. ## English

Can some check my personal narrative and give a grade from 1-5? Mario Garcia 10-10-11 Period.3 The Lost Dog I didn’t feel like helping my sister wash my dad’s car. After our dog left this morning we were both sad, we didn’t feel like doing anything

270. ## math

The fuel rods for a certain type of nuclear reactor are bundled into a cylindrical shell. Consider this cross-section showing 19 identical fuel rods: a) If the diameter of the cylindrical shell is 12.35 cm, calculate the shaded area of the cross-section.

271. ## science

A football spends a total of 5 seconds in the air. It reaches a peak height of 20 meters. How long does it take to reach its peak height?

272. ## Binders

What sub tabs I can put into my binders for school & my elective binder ?

273. ## Calculus

solve this equation on the given interval expressing the solution for x in terms of inverse trigonometric functions. 6(cosx)^2-cosx-5=0 on (pie/2, pie)

274. ## maths urgent help!

The average mass of 2 durians and 3 apples is 1.85kg. The average mass of 3 durians and 3 apples is 1.92kg. What is the mass of 1 durian?

275. ## environmental science

I need some help coming up with ideas for this topic: What are some pros to allowing private logging companies to thin federally owned forests? Cons?

276. ## English

Good afternoon. My english professor wants me to give an example of highbrow, lowbrow and middlebrow from another art form - such as music, film or dance. Can you help me out I have no idea what this means. Thank you

277. ## Chemistry

How many grams of Calcium Chloride can be formed by reacting 50.05 g of Calcium carbonate with 900.00 ml of .8000 M hydrochloric acid

278. ## Chemistry

A solution of HCL whose pH=2.010 was added to neautralize a 40.00 ml solution of KOH, the molarity of KOH is .2567 M. How many mls of HCl were required?

279. ## chemistry

The density of sample measurements taken by a tech are: 0.810g/mL, 1.375g/mL, 2.046g/mL. The Actual density is 1.027g/mL. Are these measurements by the tech. precise accurate or neither or both Is the correct answer: Neither??? Thanks,

280. ## english

I need to do a summary paragraph on a ediorial in a newspaper or magazine .and i don't were to start in writing the paragraph and the subject i choose waw sex,slavery in america on one girls nightmare

281. ## algebra

cannon fired ffrom top of 50 ft hill. height of shell above water: h = -0.0000167x^2 + 0.23x + 50 where x is horizontal distance from the foot of the hill to a point directly under the shell. How high does the shell go, and how far away does it hit the

282. ## algebra

for every point (x,y) which is in the first quadrant and is on the graph y = 24 -4x^2, consider the rectangle with corners (-x,0), (-x, y), (x,0) and (x,y). for which value of x does the rectangle have maximal area?

283. ## physics

A ball is thrown vertically upward with a speed of 27.3 m/s from a height of 2.1 m. How long does it take to reach its highest point? The acceleration of gravity is 9.81 m/s2. Answer in units of s

284. ## college easy physics

Help me out with 2 multiple questions!!!!!!!!!!!!!!!!! ASAP please What is flux in general? 1. A flow of energy, so heat is an example of flux. 2. Flowing matter such as a river or an air current. 3. Flowing energy or flowing matter. 4. An amount of energy

285. ## math

How you can rounded 85 to the nearest ten.

286. ## calculus

find the partial derivatives du/dx, du/dy and du/dt. u= root (r^2+s^2, r = y + x cos(t), s = x + y sin(t);when x = 0, y = 2, t = 2

287. ## science

Atoms share electrons or donates and accepts them to

288. ## physics

A women walks 2m in the direction 60degrees north of east. find her final displacement.

289. ## Math

How do I solve for negative modular arithmetic? Here is an example: -45 mod 13 = 7, but how?

290. ## World history

In the Rome of Marcus Aurelius, a recurrent formula for saving the state from crisis involved A. dividing the government and delegating authority. B. paying tributes to Germanic peoples in Europe. C. politicizing the military. D. enlisting the aid of

291. ## special education

I need an answer to a literture question that i can't find. A judge in canto vii,named minos,use his longtail to assign the penalty for each condemned sinner?

292. ## This Website.

Why do some people's posts get deleted?

what is base word for calling, called, calls. what is the base word for burning, burned, burns

294. ## HELP!!!!

why do we celebrate hispanic heritage month

295. ## english

i need the answer to this riddle: I am used for contracts I can be a manuscrpt or cursive. I am part of a friendly letter. Who am i?

296. ## Fractions

1) What is 5/6 - 7/9? 2) Della wants to open a daycare center and saved 2/5 of the amount needed for start-up costs. If she saves another 1/8 of the necessary amount and then 1/6 more, find the total portion of start-up costs she had saved.

297. ## Genetics

Given below is a pedigree in which the inheritance of an autosomal dominant disease gene is being followed. Linked to the disease gene (3 cM = 3% recombination away) is a RFLP marker with 2 alleles (5 kb and 3 kb). Given the DNA marker compositions for

298. ## math

you have 25 acres and in every acre theres 10 beds. if my ratio is 6 females to 2 males. how many females and males do i have in the whole 25 acres?

299. ## science

How does deforestation and urban sprawl affect the food web?

300. ## English

can someone help me turn this into a personal narrative? The Lost Dog I didn’t feel like helping my sister wash my dad’s car. After our dog left this morning we were both sad, we didn’t feel like doing anything but to just search for him. “It was

301. ## Social Studies (civilizations)

How was the Persian empire was different from the Assyrian Empire?

302. ## science

As we reach a possible peak in oil production, what alternatives are forming? Consider the role of OPEC, perhaps, in reorganizing and monitoring oil production. What do you think is the most viable way to address after effects of this possible peak?

303. ## geography (Ms. Sue)

Ms. Sue, I looked at the website and I also looked at a few others. New World encyclopedia as well as a few of the others say it is disputed as to what country has the fourth largest land area. It is between China and the United States. So now I am really

304. ## science (optics)

explain the process of accommodation in the human eye. thanks :)

305. ## maths

in a number of tests juan scored 42,54,63,42,78.What is the median mark

306. ## algebra function

How do you graph 2x+6y =4 and compute xand yintercept form

307. ## algebra function

How do you graph 2x+6y =4 and compute xand yintercept form

308. ## Math

f(x)=3x+8 ; Find x if f(x)=12

309. ## Science

1. What is the question that this study aimed to answer? State the hypothesis that you tested. I completed the lab but I don't understand what it is that I am testing. The lab had me test fragmentation at 0,25,50 and 75%.Included Spiny Grass, Blue bunch

310. ## World History

With the adoption of Christianity by Constantine, the emperor A. was no longer worshipped as a god. B. was called God's deputy on Earth. C. stopped using images of pagan gods. D. ended pagan rituals and ceremonies. My answer is B. but i am not quiet sure

311. ## Science

What are the main goals and strategies of green intelligence. Are they market based approaches that could save the planet?

312. ## French

Quel jour es?[:

313. ## History

Hello I am doing a project about the spanish colonial Floridians Time during the time when there was the 13 original colonies.For the Project I am doing a map of floridaand need to include floridas natural and industrial resources and their locations. I

314. ## English

Here are other mistakes I checked.I'd like you to have a look at them. Thanks. 1) Elizabeth I led a powerful emperor with a strong ship army. Elizabeth made England a powerful seafaring and commercial country. "Does the word ship army exist???" 2) She was

315. ## EXP 105 Personal Dimensions of Education

Write two to three paragraphs briefly summarizing the theory and discussing at least two of the “Seven Intelligences” that apply most closely to you, providing examples to illustrate your point.

316. ## Science

I am making an essay about the conditions of our water resources and the issues concerning our water. What is a good title for the essay?

317. ## social studies

I need helping trying to find Russia's traditions, norms, and values from the 1500s. Thank you

318. ## English

1. May I go to the bathroom? 2. Can I go to the bathroom? (What is the difference between #1 and #2? Betwen may and can?)

319. ## HUM/186

what are the primary roles of media delivering news to the public

320. ## pre calculus

If f and g are inverse functions and the point (-3, 5) is on the graph of f, then the point ____ is on the graph of g

321. ## chemistry

what is the % ab for managese isotopes # 55

6d-3d+2d=35

323. ## English

I forgot to add a few more sentences. I hope you can check them, too. 1) According to Wordsworth imagination sharpened a special intuition, which enabled the poet to perceive and see things the ordinary man is (or was??) usually blind to. 2) The bird never

324. ## English

I urgently need you to check if all my corrections are OK. Thank you very much in advance. 1) The Elizabethan thetre was made up of three different galleries and three kinds of stages (it was made up of three stages surrounded by three tiers of galleries).

325. ## English

which should not be included as a heading in a chronological resume?

326. ## Spanish

please unsrcamble the spanish word sonbatiod

327. ## English

Thank you. How would you check sentences numer 3 and 4. I'm not sure about my corrections Just two things on my previous post. 1)"as long as Dunsinane hill doesn't move towards him " is better than "until Dunsinane hill moves towards him"? 2) Women weren't

328. ## english

Consider the sentence "The peace accord proposed that a neutral army be deployed to act as a buffer between two sides of a dispute." Is "buffer" a correct example of "personification"? Or perhaps another rhetorical device? Thank you.

329. ## World history

_______ was the first thinker to postulate that numbers are real, not abstractions. A. Pythagoras B. Hui Shih C. Parmenides D. Aristotle I have chosen A. Do you agree or Disagree?

330. ## physics

you trow a ball to your friend at 30m/s. at what speed does you friend catch the ball?

331. ## Check Fib. Number problem please

For any prime number p except 2 and 5, either Fp-1 or fp+1 is divisible by p. If I showed that this is true for p=7, the answer should be F8---is this correct because f8 is 21. P=11 would be divisible by 55 which is F10.

332. ## French

Tu t'appelles comment?[:

333. ## childcare

In what ways can a child care centre program provide quality care for the child caregivers.

334. ## math

arrays and an expanded algorithm 23*17

335. ## science

Mercury is a heavy metal. Using atomic models and the periodic table of elements, explain why it belongs to this category of elements

336. ## Science

Atoms share electrons or donates and accepts them to A. bond B. become stable C. to gain mass D. both A and B I think it is C

337. ## Algebra

What are the steps to solve this problem? -11+10(x+10)=4-5(2x+11)

What is 3/7 + 2/5 + 1/10?

339. ## Government US

26. U.S. Bureau of Labor statistics reveal that the great majority of those workers who lost their jobs in 2001 did so because a. they are lazy. b. of either a temporary layoff or the permanent elimination of a job position. c. they were undereducated for

340. ## Home owning

Is it possible to own a home or apartment in some areas without having to pay utilities, making for a less stressful life? If anyone says no, I don't want to feel bad for asking this because I'm a little worried about it.

P=5g-23=

342. ## datebase

What five or six fields will you include in the database?

2.3•(-1.55)=

2.3•(-1.55)=

345. ## math

if two dice are rolled one time, what is the possibility of getting a number smaller than 5

346. ## Math

factor 50x^2-72

347. ## social studies

Developmental psychologists know that the sex of the baby is determined: A)definitively at conception. B)by the release or non-release of a hormone during the embryonic stage. C)by the embryo's genes. D)during the fetal period. I chose C. Am I right?

P=5g-23=