# Questions Asked onDecember 1, 2014

1. ## Language Arts

Passage A Avalanches are caused by a variety of conditions. When the temperature is cold and snow falls, the snowsticks to the ground. However, when the air temperature changes, the snow may slide away in pieces or slabs. Basically an avalanch happens when

2. ## Chemistry

An electron is excited from the n=1 ground state to the n=3 state in a hydrogen atom. Which of the following statements are true? Correct the false statements to make them true. A. It takes more energy to ionize (completely remove) the electron from n=3

3. ## Language Arts

Passage A Avalanches are caused by a variety of conditions. When the temperature is cold and snow falls, the snowsticks to the ground. However, when the air temperature changes, the snow may slide away in pieces or slabs. Basically an avalanch happens when

4. ## language arts

Avalanches happen in a series of stages. First, while the temperature is cold and there is a heavy snowfall, the snow will stick to the ground. Suppose that what happens next is that the air temperature changes after the snow has fallen. Then, a layer of

5. ## language Arts

There is little if any, "storm" in the new movie Storm Fever. Aren't actors supposed to act, and aren't directors supposed to direct? Actor Robert Pierre seems to wander aimlessly around the set. And director Sue Smith can't seem to figure out how to

6. ## Algebra 1

The table shows the relationship between the number of players on a team and the minutes each player gets to play. Players minutes 7 35 8 30 9 25 10 20 Is the relationship a function that ism increasing or decreasing? Is the relationship a function that is

7. ## Language Arts

Which of the following sentences about the selection uses the past perfect tense? A. I have planned to see the movie tomorrow B. I still plan on going to see the movie tomorrow C. I had planned to see the movie tomorrow, until I read the review D. I still

8. ## History

Which was expected of women in the early nineteenth century? (Points : 2) working to own property obeying their husbands teaching their daughters reading and math helping their husbands make economically sound decisions Is it b?

9. ## Algebra 1

use the vertical line test to determine if the relation(-6,-2), (-2,6),(0,3),(3,5) is a function

10. ## Chemistry

Identify the Bronsted-Lowry acid in the following reaction. H2O (l) + HCO31- (aq) → H3O+ (aq) + CO32- (aq)

11. ## sci

melissa burned her hand on the stove. why did putting her hand in a bowl of cold water make the burn less severe a. cold transferred to her hand from the water by convection. b. cold transferred to her hand from the water by conduction.

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12. ## physics

Water flowing through a 1.9-cm-diameter pipe can fill a 500L bathtub in 5.1min. What is the speed of the water in the pipe?

13. ## Language Arts

Which persuasive technique is used in the following sentence from the selection? So if you have any sense at all, avoid Storm Fever. A. Appeal to authority B. Appeal to reason C. Repition D. Rhetorical question Is the answer B?

14. ## language Arts

Which persuasive technique is used in the following phrase from the selection? The movie was advertised as "full of adventure." It isn't. A. appeal to emotion B. appeal to reason C. repetition D. rhetorical questions Is it D?

15. ## History Help?

What role did Stephen Austin play in the settlement of Texas by American colonists? He defeated Santa Anna's army, making it safe for colonists in the region. He convinced American colonists in Texas to declare their independence from Mexico. He received a

16. ## Language Arts

Suppose this selection is an excerpt from a biography. Which of the following changes would make it fiction rather than nonfiction? A. Transforming it into a first-person account by Louise B. Transforming it into a dialogue between Louise and a snake C.

17. ## Language Arts

Passage A Avalanches are caused by a variety of conditions. When the temperature is cold and snow falls, the snowsticks to the ground. However, when the air temperature changes, the snow may slide away in pieces or slabs. Basically an avalanch happens when

18. ## Chemistry

The color of light emitted by a hot solid object depends on?

19. ## calculus

I needed help with these FRQ in my APCalc course. Any help or walkthrough would be extremely helpful - thanks in advance. Let f be the function given by f(x)=3ln((x^2)+2)-2x with the domain [-2,4]. (a) Find the coordinate of each relative maximum point and

20. ## Science

~~~~~~~~~~~~~~~~~~~~~~~~~Choices *Extra Words In The Word Box (Will Be Leftovers)* -Landfills -Limiting Factor -Non~point Source -Habitat Destruction -Stop -Migration -Biodiversity -Carbon Dioxide -Reverse -Carrying Capacity -Commensalism -Selective

21. ## physics

A spring scale is calibrated from zero to 20. N. The calibrations extend over a length of 0.10 m. (a) What is the elastic potential energy of the spring in the scale when a weight of 5.0 N hangs from it? (b) What is the elastic potential energy when the

22. ## Algebra 1

The ordered pairs(1,4), (2,16), (3,64), (4,256),(5,1024) represent a function. What is a rule that represents,this function? My answer is y=x to the 4th power

23. ## Chemistry 2

In a particular redox reaction, MnO2 is oxidized to MnO4– and Ag is reduced to Ag. Complete and balance the equation for this reaction in acidic solution. Phases are optional.

24. ## aliteration

Which line from the poem includes an example of alliteration? "I tell him that my Diary is boring as a textbook." "That’s one fact that stays under lock and combination." "...where I’m the leading lady whom the characters adore." "It’s amazing, how

25. ## Physics

The wheels, axle, and handles of a wheelbarrow weigh W = 65 N. The load chamber and its contents weigh WL = 538 N. The drawing shows these two forces in two different wheelbarrow designs. To support the wheelbarrow in equilibrium, the man’s hands apply a

26. ## Math

A box contains 4 red penciks and 6 black pencils what fraction of the pencils are red

27. ## Language Arts

Passage A Avalanches are caused by a variety of conditions. When the temperature is cold and snow falls, the snowsticks to the ground. However, when the air temperature changes, the snow may slide away in pieces or slabs. Basically an avalanch happens when

28. ## Language Arts

There is little, if any,m "storm" in the new movie Storm Fever. Aren't actors supposed to act, and aren't directors supposed to direct? Actor Robert Pierre seems to wander aimlessly around the set. And director Sue Smith can't seem to figure out to present

29. ## chemistry

Although no currently known elements contain electron in g orbitals in the ground state, it is possible that these elements will be found or that electrons in excited states or known elements could be in g orbitals. For g orbitals, the value of

30. ## chemistry

The decomposition of potassium chlorate (KClO3) is used as a source of oxygen in the laboratory. How much potassium chlorate is needed to produce 10.2 mol of oxygen? Answer in units of mol

31. ## science

A jellyfish can propel itself with jets of water pushed out of its bell, a flexible structure on top of its body. The elastic bell and the water it contains function as a mass-spring system, greatly increasing efficiency. Normally, the jellyfish emits one

32. ## Newtons Law of Cooling

A salad with a temperature of 43F is taken from the refrigerator and placed on the table in a room that is 68F. After 12 min the temperature of the salad is 55F. What will the temperature of the salad be after 20 min.

33. ## Language Arts

There is little, if any,m "storm" in the new movie Storm Fever. Aren't actors supposed to act, and aren't directors supposed to direct? Actor Robert Pierre seems to wander aimlessly around the set. And director Sue Smith can't seem to figure out to present

34. ## Math

Samantha wants to buy 6 roses 4 carnations and 8 tulips she estimates that she will spend about 14 dollars on these flowers do you agree math chapter 5

35. ## physics

a net force of 100 newton's is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

36. ## pretty algebra

A commuter train pulling 8 cars had room for another 84 passengers. Halfway...

37. ## Chem 130

Carbon monoxide burns in oxygen to form carbon dioxide. what volume of oxygen at 25 degrees Celsius and 760. mmHg is required to react with 15.0 L of carbon monoxide which id at STP?

38. ## language Arts

Which phrase best describes the meaning of distinguish as it is used in the selection? A. to whish for B. to tell apart C. to feel important D. to give accolades Is the answer b?

39. ## Language Arts

There is little, if any,m "storm" in the new movie Storm Fever. Aren't actors supposed to act, and aren't directors supposed to direct? Actor Robert Pierre seems to wander aimlessly around the set. And director Sue Smith can't seem to figure out to present

40. ## Language Arts

Which verb mood is used in the following sentense from the selection? If you have any sense at all , avoid Storm Fever. A. Indicative B. Subjunctive C. Conditional D. Imperative Is the answer A?

41. ## Janine

You order fifteen burritos to go from a Mexican restaurant, eight with hot peppers and seven without. However, the restaurant forgot to label them. If you pick five burritos at random, find the probability of the given event. (Round your answer to three

42. ## sci

a radiator is attached to a wall on one side of a room. which is mostlikely way its heat will warm the air on the other side of the room? a. by conduction b. by convection c. the warm air will sink and condense d. the warm air will rise and condense

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43. ## English (Reunion by John Cheever)

What is the significance of the title? Although the the story depicts Charlie's reunion with his father the word reunion id used without a definite or an indefinite article. Why?

44. ## Science

Suppose that you heated a sample of a hydrated ionic compound in a test tube. What might you expect to see inside the test tube, near the top of the test tube? Explain please i really am stumped on this question...

45. ## famu

Construct a 99% confidence interval for the population mean, ì. Assume the population has a normal distribution. A group of 19 randomly selected employees has a mean age of 22.4 years with a standard deviation of 3.8 years. Round to the nearest tenth.

46. ## chemistry

A solution with a pH of 7 has a [OH1-] of

47. ## Math

A cube has a surface area of 6534 square feet. What is its volume?

48. ## chemistry

In the following reaction, how many grams of lead(II) nitrate Pb(NO3)2 will produce 425 grams of sodium nitrate (NaNO3)? Pb(NO3)2(aq) + 2 NaBr(aq) PbBr2(s) + 2 NaNO3(aq) The molar mass of Pb(NO3)2 is 331.21 grams and that of NaNO3 is 85 grams.

64. ## language arts

Which verb mood is used in the following sentence from the selection? So if you have any sense at all, avoid Storm Fever. (storm fever is a movie) A. indicative B. subjunctive C. conditional D. imperative is it c?

65. ## Chemistry

The homework question is : Calculate the Delta H for the following reaction: C6H6 + O2 -> C + H2O(l) State whether the reaction is exothermic or endothermic. I'm not sure where to go with this but so far I balanced out the formula to this C6H6 + (3/2)O2 ->

66. ## Physics

An object is placed in front of a converging lens in such a position that the lens (f = 13.2 cm) produces a real image located 23.5 cm from the lens. Then, with the object remaining in place, the lens is replaced with another converging lens (f = 18.8 cm).

67. ## math

the gauss's approach to find the following 1+2+3+4+... 99 1+3+5+7+...101

68. ## math

A company will need $65,000 in 6 years for a new addition. To meet this goal the company deposits money in an account today that pays 5% annual intrest compound quarterly. Find the amount that should be invested to total$65,000 in 6 years. the company

69. ## Language Arts

Which verb mood is used in the following sentence from the selection? If you have any sense at all, avoid Storm Fever. A. Indicative B. Sunjunctive C. Conditional D. Imperative Is the answer B?

70. ## physics

a net force of 200 newton's is applied to a wagon for 3 seconds. this causes the wagon to undergo a change in momentum of

71. ## MATH

Mimo wishes to leave a waitress a tip. Mimo has five coins in his pocket, a penny, a nickel, a dime, a quarter, and a half-dollar. If he uses exactly three coins for the tip, how many different tips are possible? A. 15 B. 5 C. 20 D. 10 Crystal wants to put

72. ## algebra

If 18g of a radioactive substance are present initially and 5 yr later only 9 g remain, how much of the substance will be present after 11yr ? after 11yr there will be ___g of a radioactive substance. round the final answer to the nearest thousandth as

73. ## algebra

Find the doubling time of an investment earning 7% interest if interest is compounded continuously is ____years. Round to the nearest tenth of a year.

74. ## proportion word problems

darrell drove 187 miles in 3 hours. What was darrell's average rate of speed in miles per hour

75. ## sci

which of the following is a example of heat transfer by radiation? a. wind currents b. a pot of water boiling on the stove c. a bare foot on a hotsidewalk d. a microwave oven heating food

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76. ## Calculus...help

The projected public spending by the British government for the years 2010-2011 (t = 0) through 2014-2015 (t = 4) is 692 billion pounds/year. The projected public revenue for the same period is f(t) = 292.6t + 134.4 / t + 6.9 + 500 billion pounds (0 ge t

77. ## math

Janet bought 1/2 cake. She ate 1/4 of the cake she bought. Then she cut the remainder into 2 equal pieces. What fraction of a whole cake was each piece?

78. ## Physics

A rectangular trough, 2.0 m long, 0.50 m wide, and 0.50 m deep, is completely full of water. One end of the trough has a small drain plug right at the bottom edge. When you pull the plug, at what speed does water emerge from the hole? (in m/s) Hint: V =

79. ## math

The area of a rectangular field is 96m2. The length of one side is 12m. The farmer needs to know its perimeter to work out how much fencing will be needed?

157. ## calculus

Let f'(x)=4x^3-12x^2. (a) find three different functions with derivative equal to f'(x). how are the graphs of the three functions related? the only one that i can figure out is: f(x)=x^4+4x^3+y where y can equal any constant. any help on figuring out the

158. ## Chemistry

Given the following equation: N2 (g) + 3H2 (g) → 2NH3 (g) ΔH = -92.6 kJ Calculate ΔH (in kJ) for the decomposition of 30.5 g NH3 (g) into N2 (g) and H2 (g)

159. ## Math

A radio cost a company $45 to manufacture. If it sells for$97.65, what is the percent markup based on cost.

160. ## english

The night has a thousand eyes, And the day but one; Yet the light of the bright world dies With the dying sun. The mind has a thousand eyes, 5 And the heart but one: Yet the light of a whole life dies When love is done. The Rhyme Scheme of the first 4

161. ## English

1. If you turn right, you'll find the post office on your right. 2. If you turn right, you'll find the post office which is on your right. -------------------------- Does #1 mean #2? Or does 'on your right' modify the verb 'find'?

162. ## physics

You take a pendulum clock to the moon, Assuming you do not change anything about the clock, will it still keep the right time? why?

163. ## Algebra 1

What is the graph of the function rule? y=I5xI -2

164. ## falaq

Muslim experts in falaq have produced salat timetables for the convenience of the ummah. a.Naturally they would have certain error margins.If, say for example the error is about 2 minutes. The time for asr is 430 pm. Is it then possible to regard the

165. ## Genetics

Why is DNA replication termed semi conservative?

166. ## mathematics

In an ap d sum of d 1st ten terms is 50 nd d fifth term is 3times the 2nd term.find the first nd d sum of d 1st 20 terms

167. ## Chemistry

a gas phase compound has a density of 2.10 g/l at 751 torr and 100 c what is the molecular weight

168. ## General Calculus Question

On a graph what ways can it not be differentiable? I know at cusps it's not differentiable but are there other instances where it is not differentiable?

169. ## Physics

Find the capacitance of a parallel plate capacitor if 1400 ìC of charge are deposited on its plates when 20 V are applied across the plates.

170. ## Math

1. A town has a population of 100,000 now and the population is increasing 10% every year. What will be the population in 5 years? 2. How many poles will be in a pile of telephone poles if there are 30 in the bottom layer, 29 in the second, and so on,

171. ## math

The line segment joining ( -3,-4) and (6,11) is to be divided in to three (3) equal parts. Find the coordinates of the point of the part closest to (-3,-4). Please help me..

172. ## physics

a force of 20 n acts on a 5 kg block. calculate the acceleration of the object.

173. ## Chemistry

A student weighs out 15g of the hydrated salt KCl (this is KCl and water) and heats it till a constant mass of 12 grams remains. What percent of the salt was water?

174. ## physics

2. You push a 2.0 Kg block against a horizontal spring (the spring constant is k=200 N/m) compressing it by 15 cm. Then you release the block and the spring sends it sliding across a tabletop. The block stops 75 cm from where you released it. (a) Find the

175. ## english

i have been at this for a while now and i cant get it. People use bamboo in many ways. the verb is use so is use transitive?

176. ## Chemestry

Calculate the density of an object with a mass of 2.14g and a volume of 11.40mL.

177. ## physics-finding velocity

A small block of mass .450 kg is sliding down a ramp inclined at an angle of 53 degrees to the horizontal. it starts to slide from a vertical height of .65 meters. Find the Velocity when it slides off the ramp. The way I approached this problem was by sing

178. ## Math

Set up and solve a system of equations to solve the application. A rectangular area of 525 square feet is enclosed using 100 feet of fence. What are the dimensions?

179. ## physics

Melaine, Kristin, and Elizabeth's 0.39kg batman is accelerated across a frictionless fishing line from rest to a speed of 15m/s in 1.5 m. How much power is exerted on "Batman"?

180. ## Chemistry

Calculate the pH of the solution that is prepared by mixing 26.06g of ammonium iodide (MM=144.942) and 5.08g of ammonia (MM=17.034g) in enough 0.066 M HCI to produce 1.00L of solution. Kb(NH3)=1.76x10^-5 I converted 24.06g and 5.08g to moles and i now I

182. ## English

1. Half of the houses in the village were burnt down. 2. Half of the houses in the village burnt down. 3. Half of the houses in the village were burned down. 4. Half of the houses in the village burned down. ------------------ Are they grammatical? Which

183. ## Math

At the start, a biologist counts, m, microbes in a sample. Every day after that, the number of microbes in the sample is multiplied by N.

184. ## Calculus

Water is being poured into a spherical bowl of radius 4cm at a rate of 2cm3/s. How fast is the water level rising when it is at 2cm?

185. ## band essay-Ms. Sue

Who wouldn’t want the chance to go to Puerto Rico? I have been excited for this band trip opportunity since it was introduced last winter. A once in a lifetime opportunity to share my love of music and explore another culture is an eyeopening experience!

186. ## CHEMISTRY

What is the pH of a solution with [H3O+] = 1 x 10-9 M? My answer is pH=9. is that correct

187. ## Algebra 2

Solving Quadratic Systems x^2+y^2=20 x^2-6y=28 PLEASE SHOW WORK I'M HAVING TROUBLE SOLVING IT

188. ## physics

A stretched string fixed at each end has a mass of 21 g and a length of 5.7 m. The tension in the string is 41.1 N. What is the vibration frequency for the third harmonic? Answer in Hz.

189. ## College Geometry

A tipi is a portable structure made of poles and covered in hides. Native American tipis varied in size and the number of poles used. A 12-pole tipi framework is shown in the following figure. The framework of a tipi lean toward the west so the apex was

190. ## Calculus

Which of the following functions does not have a derivative of zero? A. y=-1/100 B. y=4(pi)^2-9 C. y=sin^2x+cos^2x D. y=cscxtanxcosx E. All do

191. ## Chemistry

A student places 0.025 moles of solid sulfur and 0.100 moles of nitrogen monoxide gas in a closed 1.00L container and 0°c for several days. Calculate the number of molecules of NO in the 1.00L container after equilibrium is reached, given the following

192. ## chemistry

Version A formular: 3Zn(OH)2 + 2Zn(CO)3(s)----------------------------->5ZnO(s)+2CO2(g) +3H2O(g) 105.4mL of Co2(g) was generated with a pressure of 765.5mm Hg for the gas. The temperature of the apparatus was 25.0C. How much zinc oxide would be left in

193. ## POL201

In Ronald Reagan’s version of new federalism, the goal was to return power back to the states through @The answer can be found in “New Federalism II, 1982-Present.” A) deep cuts in federal spending. B) the Great Swap. C) orders to the states to take

194. ## Rounding up and down

1. Lily moves 0.337 tonnes of sand to make a sandpit how much is this to two decimal places? 2. Lily moves 0.5 tonnes of pebbles to decorate the flower bed. If this mass has been to one decimal place, which of these could be the actual mass of pebbles? A

195. ## Social Studies

How did the United States attempt to stay out of European conflicts? A. By sending a limited number of troops to France. B. By proclaming neutrality and signing treaties with Britian and Spain. C. By encouraging the Native Americans to get involved

196. ## Physics

We always hear people say “You should conserve energy! Think of what will happen to the next generation if all our energy resources get depleted!” Is this in contradiction with the Law of Conservation of Energy which states that the total amount of

197. ## Math

What is the rule for this function? input 2 output 5 ,input 4 output 13, Input 6 output 21, Input 8 output 29, Input 10 output 37 Please help now thanks

198. ## chemistry

write the specific heat water and liquid and gas

199. ## science

when do huricanes happen??

200. ## english

People use bamboo in many ways. The verb is use. My answer is intransitive verb. Am i right?

201. ## science

An electron of mass 9.11 × 10-31 kg and charge 1.6 × 10-19 C passes through a cathode ray tube with a velocity of 3.7 × 107 m/s. It enters a magnetic field of flux density 0.47 mT at a right angle. What is the radius of curvature of the path in the

202. ## ethics

Which of the following answers to the meaning of life did Tolstoy hold prior to his change of heart and mind?

203. ## physics

A child on a barber shop spins on a stool. If the child turns counterclockwise through 8.0 radians at a certain time and with an angular velocity of 2.56 rad/s. What is the time interval in minutes when the child turns?

204. ## Math

How to check 4=-2(4.5p+25) so the answers both check out and equal each other?

205. ## Maths

Let f(x)= x^5-5x+3 1-Find f'(x) and f"(x). 2-Find the intervals on which f(x) is increasing or decreasing. 3-Find the local maximum and minimum of f(x), if any. 4-Find the intervals on which the graph of f(x) is concave up or concave down. 5-Find the

206. ## Algebra

A recipe for a home-made disinfectant calls for adding one-half cup of clorox to one gallon of water. Mrs. Jenkins wants to make this solution in a 32-ounce spray bottle. How many fluid ounces of clorox should be added to 32 fluid ounces of water to have

207. ## Corrections

Prisoners who petition that their civil rights have been violated most frequently cite all of the following concerns except a. due process. b. inadequate medical treatment. c. physical security. d. ineffective assistance of counsel. im confused between B

208. ## math

A recipe for a home-made disinfectant calls for adding one-half cup of clorox to one gallon of water. Mrs. Jenkins wants to make this solution in a 32-ounce spray bottle. How many fluid ounces of clorox should be added to 32 fluid ounces of water to have

209. ## Calculus

Estimate the area under the graph of f(x)= x^2 + 2 x from x=1 to x=5 using 4 approximating rectangles and left endpoints.

210. ## Math

consider the function f(x) = (x if xor equal to 1 Evaluate the definite integral: int_{-2}^{3} f(x)\,dx =

211. ## Chemistry

Chemistrywhat is the weight of 1 atom of H in gram (at.wt Of h = 1.008) ?

212. ## Math

Round the larger factor to the graetest place. 55*4 round 50 *4 993*6 rounds to 1,000*6 735*3 rounds to 700*3 1,914*3 rounds to 2,000*3 4,722*6 rounds to 5,000 495*3 rounds to 500*3 Please ,, My answers : true or false

213. ## Calculus

Differentiate. e^cos(x^2+1) Is the answer -2xe^cos(x^2+1) sin(x^2+1)?

214. ## Math

Two ships are moving toward a rendezvous point. Ship A is 5km east and 4km north of the point Ship B is 1km west and 2km north pf the point. How many km part are the two ships? Please . I really need your help

215. ## maths

The area of a rectangular field is 96m2. The length of one side is 12m. The farmer needs to know the perimeter to find out how much fencing will be?

216. ## Chemistry

A student dissolves 22.4 g of sodium phosphate to prepare a 2.98 L solution. Another student then dilutes this solution to 4.90 L. If sodium phosphate completely dissociates, determine the number of mols of each ion in the final solution.

217. ## physics

An airplane traveling at v = 163 m/s emits a sound of frequency 1730 Hz. At what frequency does a stationary listener hear the sound as the plane approaches? Use 340 m/s for the speed of the sound and answer in Hz.

218. ## movie

Breakfast at Tiffany's. ----------------- This is a movie. By the way, what does Tiffany's"mean? Is it a place, a house, or a city?

219. ## Chemical Engineering

What are the ways to split a mixture of benzene and methanol into its component using a 2 phase system separation ? Thank you

220. ## biology

which is true about the inside of a cell? -the inside of an animal cell contains structures that carry out specific jobs for the cell, but no water or molecules dissolved in water -the inside of an animal cell contains water, molecules dissolved in the

221. ## chemistry

Democritus- example and picture is it an atom and a picture of a atoms that she wants?? Did he rely on experimental evidence to justify his ideas? yes he gave an image of an atom that distinguished them from each other by their shape, size, and the

222. ## Maths

The nth term of a series is 2^n-1 +5n. Find the sum of the first n terms. (Hint: This is an expression in terms of n).

223. ## Stats

The produce manager of a grocery store claims granny smith apples weight a mean of four ounces. The sample size is 10 apples (1,6,22,35,39,53,62,64,66,77) the alpha value will be 0.05.

224. ## Math

What is the first step in solving the equation? 3/4 divided by 2/3 Is the answer multiply

225. ## Physics

bob drop a rock from a height of 4.5 m. (the acceleration due to gravity is 9.8 m/s^2) 1.at s the initial speed of the rock 2. how long is the rock falling before it hits the ground c. what is the final speed of the rock? [I have trouble with c) My work:

226. ## physics

You create a plot of T2 (in s2) vs mass (in kg) and the linear fit of your graph gives a slope of 0.12735 ± 0.01234. What is the value of the spring constant you took the data with? i am not sure what to do. i know the k=1/slope but im not sure how to

227. ## Physics- formula help

How do you calculate air resistance on an object if you have how much the object weighs and the acceleration?

Which of the following is equal to 1/6÷1/18? Assume the shapes are rectangular. A) The width of a 1/6 square yard tile border that is 1/18 yard long. B) The width of a 1/18 square-meter flower bed that is 1/6 meter long. C) The area of a planter that is

229. ## MATH

multiply (-3-m)(3+m)

230. ## French

How do I say I'm in high school in French? Je suis en lycée?

231. ## Chem

The acidic H is almost always attached to an Oxygen Why is that?

232. ## Essentials of Financial Lit

I need help with my homework. I saved it to a word document because its wordy. I can email it

233. ## math

Estimate. Then find each product. Simplify 6 1/3×1:5/6 Is the answer 11 11/18

234. ## math

Estimate the product then complete the multiplication 5 4/5× 7/1. Is the answer 203/5

235. ## Social studies

What was Socrates criticism of democracy?

237. ## Physics

A plastic bag is filled with nitrogen at atmospheric pressure and 22.0 oC. Assume that the mass of the bag is negligible and take the temperature of the outside air to be 0 oC. With the help of this "balloon" we want to lift a 50.0 kg girl off her feet.

238. ## Math

Hannah made 4 cups of pudding. If she served 2/3 cup of pudding to each of her dinner guest, how many guests did she serve?

240. ## Physiology

What would be (3) world arguments for birth control and two (2) world arguments against birth control?!

241. ## math

Find the Inverse: f(x)=√2x+9

242. ## math

Estimate then find each product. Simplify 7 4/5×2 1/3 Is the answer 18 1/5

243. ## math

what is the number 8

244. ## college algebra

Find the Inverse (x)=√2x+9

245. ## American National Government

Despite the greater federal authority in the federal relationship, federalism is still important for all the following reasons except that: A)it provides the best means of developing a vast country because it allows for experimentation. B)it may stimulate

246. ## math....

-p(p-q+8) multiply

247. ## math

how do i convert fractions to decimals and fractions to percents?

248. ## English

Is the following sentence a transitive verb? The strawberries contained vitamin c?

249. ## algebra 2

Solve for x. 250= (13+x)^2

250. ## Math Proof

prove f(x)=b^x is continuous on (-infinity,infinity) i.s at all a exist in reals. here assume b does not equal 1, but b>0

251. ## Precalc/Trig

I have no idea how to solve this one problem: Round to two decimal places. Two observers 25 feet apart, sight to the top of the tree. If the angle of elevation to the top of the tree from the observer closest to the tree is 30 degrees and the angle of

252. ## English

1. He has watched the World Cup for 3 hours. 2. He has been watching the World Cup for 3 hours. ---------------------------- Are both grammatical? Which one is commonly used?

253. ## Math Proof

Prove f(x)=b^x is continuous on (-infinity,infinity) i.e. a exist in the reals. here assume b does not equal 1, but b>0

254. ## math

how do I rearrange the equation a=d/t if I want to find d?

255. ## POL 201

Despite the greater federal authority in the federal relationship, federalism is still important for all the following reasons except that: A)it provides the best means of developing a vast country because it allows for experimentation. B)it may stimulate

256. ## Math

Evaluate these problems: 1.) Sin=1/7 Find csc= 2.) tan=2/3 Find cot=

257. ## Chemistry

what is the molar concentration of h2so4 solution is 2.0ml of which is completely neutralized by 45.0ml of 0.115 mol/L NaOH solution?

258. ## Algebra 2

Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 I'm having trouble solving this problem.

259. ## english

Is the word "think" a transitive or intransitive verb?

260. ## History Day

I was wondering if anyone knows what the least commonly done projject for History Day is?

261. ## MATH

multiply 8(m-n+8)

262. ## science

What is the difference between sexual reproduction and asexual reproduction?

x^2-18x-40=0

264. ## Algebra 2

Solving Quadratic Systems x^2+y^2=2 x^2-6y=10 Please show work I'm having trouble solving it

265. ## government

What is the tripartite view of political parties? Has this model become outdated? If so, why? i got the first part the second part id

266. ## Policing

the "blue flu" was an incident where members of a police department: a. called out sick in a form of protest b. were at risk for contracting the flu c. were evaluated for depression and stress d. missed work to attend a police officers funeral im confused

267. ## algebra

using long division (x^6 - 4x^5 -7x^3) / (2x^3)

268. ## sci

can we predict when a hurricane comes. how

269. ## english

what are the ideas proposed in “Civil Disobedience.” I need to choose one and make a letter.

270. ## Maths

the number of non negative integral solutions of x + y + z ≤ n

271. ## help

can we predict when a hurricane will occur

272. ## maths

easiest method for dividing