# Questions Asked onMarch 30, 2011

1. ## 5 of 90 lotto equation formula

Example: on 5 Feb. 2011, draws were::: 44 – 68 – 90 – 64 – 66 and 12 Feb. 2011, draws were::: 89 – 27 – 12 – 49 – 40 Each draw has a corresponding machine number. For instance, the machine numbers for the 5 Feb. 2011 were::: 87 – 50 –

10. ## geometry

The ratio of the areas of two similar trapezoids is 1:9. What is the ratio of the lengths of their altitudes?

11. ## Chemistry

you add 0.05ml of 0.10M agno3 to 4ml of 2.0 nacl it forms saturated solution of agcl ag+ + cl- using a saturated solution you set up ag | ag+( test solution after reaction) || ag+(1.0ml) | ag how do we calc the equilibrium of ag+ of the test solution after

12. ## Chemistry

At 35 degrees Celcius, K = 1.6x10^-5 for the reaction: 2NOCl 2NO + Cl2 If 2.0mol NOCl and 1.0mol Cl2 are placed into a 1.0-L flask, calculate the equilibrium concentrations of all species. Answer: [NOCl] = 2.0M [NO] = 8.0x10^-3 [Cl2] = 1.0M --------- What

13. ## Algebra

How do I go about Converting 8/9 to a decimal fraction. Round to the nearest thousandth.

14. ## Physics

15 beats are heard in 5 seconds when a piano key and a tuning fork of slightly higher frequency (440 Hz) are struck at the same time. What is the frequency of the sound emitted by the piano key?

15. ## physics

Four identical metallic objects carry the following charges: +7.8 µC, +4.2 µC, -2.2 µC, and -4.4 µC. The objects are brought simultaneously into contact, so that each touches the others. Then they are separated.

16. ## geometry

an equilateral triangle of side 20cm is inscribed in a circle.calculate the distance of a side of the triangle from th centre of the circle.

17. ## ryhme scheme

6 grade poetry plz help im dislexic and retarted

18. ## Trig

What is the exact value of sin^-1(sin(8pi/15)?

19. ## physics

an insulated circular ring of diameter 6.50cm carries a 12.0 A current and is tangent to a very long, straight insulated wire carrying 10.0 A of current. find the magnitude and direction of the magnetic field at the center of the ring due to this

20. ## Psychology

Which item below is most strongly related to cognition and thinking? a) classical conditioning b)behavior modification c) operant conditioning d)obeservational learning

21. ## math

How do I convert 19.9% into a fraction?

22. ## Chemistry

bond angles and polarity for trans-PF3Cl2

The denominator of a fraction is 4 more than the numerator. If both the denominator and the numerator are increased by 1, the resulting fraction equals ½. What is the original fraction?

24. ## Science

Find Molecular and net ionic equation for Al(NO3)3 + Na2CO3

25. ## geometry

elbert wants to plant grass seed in his backyard. His yard is shaped like a rectangle that is 6 meers by 7 meters. He plans to use a cup of seed for every square in his yard. How many cups of grass seed will he need?

26. ## chemistry

A studen is asket to calculate the amount of heat involved in changing 10.0 g of liquid bomine at room temperature (22.5 C) to vapor at 59.0 C. To do this, one must know specific heat (0.474 J/g*C), boiling point (59 C), and heat of vaporization (29.6

27. ## epidemiology

For this Discussion, read the following scenario, and then address the following question in 1–2 paragraphs: For the month of August, 12 new cases of tuberculosis and 12 new cases of West Nile virus infection were reported to a county health department.

28. ## math

Sophina bought 3 yards of trim to put around a rectangular scarf. She does not want the scarf to be wider than 12 inches or narrower than 6 inches. Using whole numbers, if she uses all the trim, what are the possible dimensions of her scarf in inches?

29. ## Precal

Find the exact value of the expression. sin(arccos sqrt(5)/5)

30. ## Math

The owner of the Rancho Grande has 3028 yd of fencing with which to enclose a rectangular piece of grazing land situated along the straight portion of a river. If fencing is not required along the river, what are the dimensions of the largest area he can

31. ## computer

In 256PSK, how many bits will each symbol be able to represent?

32. ## stc

interpret the poem the lady in the pink mustang

33. ## Calculus

An epidemiologist determines that a particular epidemic spreads in such a way that t weeks after the outbreak, N hundred new cases will be reported where N(t)= 5t/(12+t*2). At what time is the epidemic at its worst? What is the maximum number of reported

hi im trying to do a problem that involves multiple battereis, one capacitor,and multiple resistors, and im told that the circuit has been connected for a very long time... i found the current passing through each battery using kirchoffs rules, but now i

35. ## Physics

Will a cyclist coast farther if the lamp connected to his generator is turned off? Explain.

36. ## English - Native speakers

Do you write North South East West with a capital letter? Why do you write then: He lives in north London?

37. ## algebra

Can someone please help write a proof for the following. given: JKLM is a square prove: MK is perpendicular to LJ the figure in front of me is a square labeled JKLM and there are diagonals JL and KM

38. ## chemistry

How would you make 250 ml of a .51M calcium hydroxide solution?

39. ## writing

I need to know if my paragraph is properly punctuated. Dear Jordyn, I am thrilled you’re moving back to town, and looking for a job. My boss, Mrs. Cartucci, is seeking a personal assistant to help manage JR’s Fashions sales department. The skills

40. ## Spanish

Sandra: Hola, Eduardo. ¿1. (descansar) en la tarde? Eduardo: Nunca. Mis amigos y yo siempre 2. (tocar) la guitarra. Sandra: Yo 3. (practicar) deportes casi todas las tardes. ¿Tú 4. (estudiar) en la mañana o en la tarde? Eduardo: En la tarde 5. (montar)

41. ## algebra

The circle below is centered at the point (3, 2) and has a radius of length 7. What is its equation?

42. ## math

round to the nearest tenth 17.32

43. ## chem

which is the correct balanced equation for a given titration process, (a) or (b)? a) 6H+ + 2MnO4- + 3H2O2 -> 4O2 + 2Mn2+ + 6H2O b) 6H+ + 2MnO4- + 5H2O2 -> 5O2 + 2Mn2+ + 8H2O Process: Make a solution in a 100mL volumetric flask using 1g of NaBO3*4H2O, 20mL

44. ## Calculus

Determine the points of inflection of the function. f(x) = x + sin x (−2π ≤ x ≤ 2π) I'm still completely confused

45. ## math

John will toss a coin three times. What is the probability that the coin will land heads up all three times? express the probability ratio as a fraction and as a decimal

46. ## chemistry

the following reaction is endothermic; 3O2(g) = 2O3(g) If this reation is at equilibrium will it shift to the right or left if we: 1) add some oxygen

47. ## chemistry

whatmass of (NH4)3SO4 is required to prepare 500cm3 of m/4 solution

48. ## Social Studies, English

I need to find the obesity rates of the countries Romania, Russia, and Rwanda by gender. (for example ___ percent of Russian women are overweight; _____ percent of Russian men are overweight). I can't find any websites! D: Anny help would be appreciated.

Sorry I'm posting again. I need to find the obesity rates of the countries Romania, Russia, and Rwanda by gender. (for example ___ percent of Russian women are overweight; _____ percent of Russian men are overweight). I can't find any websites! D: Anny

137. ## physics

How much voltage is there in a circuit with a resistance of 12 ohms and a current of 3 amps

138. ## evaluate expression

ricky wrote the following to show that his sisters age is 6years less than 3times his age. Explain what he did wrong . Give the correct expression. Let (a)stand for my age ,my sisters age: a/3-6

139. ## Chemistry

A sample if liquid water (30g)heats up from an initial temperature of 20C to 78C. How much energy did it take in?

140. ## math

Find the absolute maximum value and the absolute minimum value, if any, of the function. g(x) = -x(^2) + 2 x + 9

141. ## math algebra

Would the answer be A(-n)= A-n When doing the product rule? not sure about it help if you can thank you.

142. ## physics

A 63-kg ice-skater glides with a speed of 10 m/s toward a 14-kg sled at rest on the ice. The ice-skater reaches the sled and holds on to it. The ice-skater and the sled then continue sliding in the same direction in which the ice-skater was originally

143. ## Math I'm so confused

Find the absolute maximum and absolute minimum values, if any, of the function. (If an answer does not exist, enter DNE.) f(x) = x2 − x − 5 on [0, 5] Come someone please show me how to do these problems? I'm lost

is 80 sq feet the size of a kitchen or is it 8 sq ft

145. ## Chemistry

Imagine a titration starting with 25 mL of 0.1 M phosphoric acid, and titrating it with 100 mL of 0.1 M KOH. Please go look up the Ka constants for phosphoric acid, and then,explain why I asked for so much more KOH than would be needed for CH3CO2H.

146. ## Acid/Base Chem

Determine the volume (in mL) of 1.18 M perchloric acid (HClO4) that must be added to 747 mL of 0.976 M sodium hydrogen citrate (Na2C6H6O7) to yield a pH of 4.77.

147. ## Human Resources Management

Sekect two aspects of a performance appraisal from the list below. Explain what each aspect is. State the effects on employees and employers if the aspects were not addressed. Strategic Relevance Criterion deficiency Criterion contamination Reliability

148. ## Math Absolutely no idea

Find the absolute maximum value and the absolute minimum value, if any, of the function. g(x)=(1/16)x^2-16sqrtx on [0,36]

If two numbers are relatively prime, what is their LCM? Explain your reasoning and give 2 examples supporting your answer.

150. ## CALCULUS

Postal regulations specify that a package sent by priority mail may have a combined length and girth of no more than 129 in. Find the dimensions of a cylindrical package with the greatest volume that may be sent by priority mail. Hint: The length plus the

151. ## english

She gave birth to her first child by her uncle at age 14 in 1990. This is showing a sign of being raped. Does this works? The psychologist help Alesha to break through her issues by using cognitive-behavioral therapy. Is "to" necessary or should take it

152. ## math

274 is 25% of what number?

153. ## Chemestry

How many moles of sodium chloride are produced when 25 grams of sodium reacts with chlorine gas?

154. ## College Algebra

Charlie can grade exams in 2 hours. It takes Mark 6 hours to grade the same exams. If they work together, how long will it take for them to grade the exams?

155. ## Math

we are working on a puzzle similar to a magic square. 9 boxes are arranged in an X with the center box being shared by both diagonals. the goal is to use each integer 1-9 one time so that each diagonal sums to 26 and the 4 corners sum to 26. HELP

156. ## Math

Postal regulations specify that a parcel sent by priority mail may have a combined length and girth of no more than 144 in. Find the dimensions of a rectangular package that has a square cross section and largest volume that may be sent by priority mail.

157. ## maths

Hi Please can you help Find the particular solution of the differential equation from f(x)=(x^2-6x+23)^(3/2)for which y=2 when x = 1, and then give this particular solution in explicit form? Am I correct that the following is the explicit form (not

158. ## Equivalent art

What is the the 3 equivalent fractions of 10/24

159. ## spanish

Make the following word agree in spanish: Un ,abuelos ,amables and traslate them

162. ## science

we have a project. there are different kind of topics. mine is protecting our water. i had to find 10 questions answer. i couldn't find 2. they are: 1. why is water important to protect? 2. what are some negative and positive affect of protecting our

163. ## Math

When you join Sally's Video Club, there is no rental charge for the first 2 tapes. Each tape then costs $2 to rent, but you can borrow one tape free as a bonus after renting 10 tapes. How many tapes would you be able to rent for$50?

164. ## maths

Hi Please can you help? Find the particular solution of the differential equation from dy/dx=2/27(x-3)ã(x^2-6x+23) / (y) (y>0. for which y = 2 when x = 1, and then give this particular solution in explicit form? thank you in advance for any help regards

165. ## Math

What does vertices mean?

166. ## chem

what degree celcius is read when pressure is 100mmHg?

167. ## MATH

A JUMPROPE IS MEASURED BY GRAMS OR KILOGRAMS

168. ## World History

In what regions did Latin Christendom expand during the period of the early Mongol expansion?

169. ## acc

2,000,000 shares of capital stocks at $3 par value were issued the company issued half of the stock for cash at$8 per share, and earnded $90,000 during the first three months of operation , and declared a cash dividend of$15,000 what would be the total

170. ## chemistry

How much 5 M NaOH can be made with 50 gram of NaOH? please show me your steps

171. ## physics

how does a cardboard boat float?

172. ## MATH

A DICTIONARY,CUBE AND A GEOBOARD IS MEASURED BY GRAMS OR KILOGRAMS

173. ## macroeconomics

a description of a specific macroeconomic phenomenon or event and how it has impacted you

174. ## math

what percent of students have a major other than math, history, english or science. math=200 history=300 english = 400 science=150 other= 200

175. ## Statistics

The scores on the Webster test are approximately normal with u=100 and o=15. The proportion of adults with scores between 90 and 110 is closest to??

176. ## Calculus

"The production amount, Q, of an item manufactured by a company is modeled by the CobbDouglas function Q = 200(K^0.6)(L^0.4)(T^0.3) where K is the quantity of capital investment, L is the quantity of labor used, and T is the investment in training. Capital

177. ## Introductory Physics

I am really nervous about mathematics, so I just want to make sure I am doing these problems correctly. I figure if I am getting the incorrect answer, I must be doing them incorrectly and need to work on them some more. I THINK I have them correct, but I

178. ## Science

A (blank) compound is one that burns regularly

179. ## english

what are some human rights

180. ## English (Syllogisms)

Syllogisms-Which are valid? Correct the invalid ones. Brain Surgeons save lives. Marie is a brain surgeon. Therefore, Marie saves lives. An English Bulldog is a dog. All dogs have four legs. Therefore, English Bulldogs have four legs. All humans grow. All

181. ## Chemistry

A student titrates HCl with 0.0125M KOH. Starting with 50.00 ml of the acid it takes 40.0 ml of base to reach equilavence point. A. What is the concentration of the HCl? B. What is the initial pH of the acid solution? C. What is the pH of the reaction

182. ## Math

A carpet cleaner can be rented for a fee of $55 plus$5 per hour. If you rent the carpet cleaner for 3/4 of a full 8- hour workday, how much money will you be charged?

183. ## UOP

HOW HAS HUMANS AFFECTED THE ANTARCTIC FOOD WEB I am a tax preparer and got swamped, now My paper is so late. Help, this is case we have to analyze. 700-to-900 word analysis of the case at bottom and these questions in the analysis: o Identify any

184. ## Earth Science

Compare the general temperature and direction of flow of the current that flows off the east coast of the United States with the temperature and direction of flow of the current that flows off the west coast of the United States.

185. ## math

For which angles beta, with 0 degrees less than/equal to beta less than/equal to 180 degrees, is sin 3beta equal to -1? a) 30 degress and 150 degrees b) 60 and 120 degrees c) 90 degrees d) 0 and 120 degrees I think it is C because sin of (3 x 90 = 270) 270

186. ## Statistics

Given that the mean is 40 and the standard deviation is 1.5: A) what is the probability of selecting a value between 39 and 46 B)what value will allow only 15% of the data to be greater than it

187. ## Math 7th

A bus travels 480 miles on 8 hrs. At the same rate, how long would it take the bus to travel 735 miles?

188. ## physics

A hunk of cast concrete with a weight of 10 N will float if it displaces 10 N of water true or false

189. ## Chemistry

On the basis of the solubility curve for KNO3 what type of substance would you expect KNO3 to be?

190. ## Chemistry

How much heat energy is needed to transform 125g of ice at zero degrees celsius to warm water at 80 degrees celsius?

191. ## Chemistry

How much heat energy is needed to transform 125g of ice at zero degrees celsius to warm water at 80 degrees celsius?

192. ## MAT116

3. In your industrial oven, you bake two baking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking sheet with 2 scones and 10 cookies. a. Write an expression that illustrates the total cost of all baked goods in the scenario

193. ## geometry

Serena has a square-shaped garden. She wants to put a fence around the outside of the garden. One side of the garden is 8 feet long. How many feet of fence will she need?

194. ## math

what is 24\11 times 21\2

195. ## Literature julius Caesar

What are 3 purposes for shakespeare showing us scene 3. Consider antonys speech, what is likely to occur in the rest of the play, and the role of language in politics. any good ideas? thanks

196. ## math

12x^4 _______ 42x

197. ## statistics

a simple random sample of size n=5 is obtained from the population of drivers living in New York City, and the breaking reaction time of each driver is measured. The results are to be used for constructing a 95% confidence interval. What is the number of

198. ## strayer

For this Discussion, read the following scenario, and then address the following question in 1–2 paragraphs: For the month of August, 12 new cases of tuberculosis and 12 new cases of West Nile virus infection were reported to a county health department.

199. ## math

A quaterlateral with only one pare of parallel sides would be Trapezoid am I correct. Thanks for all your help

200. ## chemistry

Hi, The problem is: "Calculate the concentration of OH- and the pH value of an aqueous solution in which [H30+] is 0.014M at 25C. Is this solution acidic, basic, or neutral?" I have calculated the OH- concentration to be: 7.1 X 10^-14 When I calculate the

201. ## Math

Evaluate the identity (cos^2x-sin^2x)/(1-tan^2x)=cosx^2X

Which of the following is NOT an example of parallel structure? a. Yoga can help you develop flexibility, reduce stress, and increase relaxation. b. Learn how to analyze business audience, improve your style, and edit thoroughly. c. You are all encouraged

203. ## Vancouver

Are there monuments in Vancouver? Would these be considered as monuments? The Stanley Park Granville Island Robson Street

204. ## English

Unscramble these letters bikfatcrgos to make three words

205. ## Few Facts about Vancouver/Paris

These are facts I have collected about them. They both have a unique atmosphere, lovely streets, and great monuments. They are both livable, and are known to be Metropolitan areas. They are popular tourist destinations. Paris is ranked among the three most

206. ## Fher

a laundry room is shaped like a rectangle. the area of the room is 6 square yards. the perimeter is 10 yards. The room is longer than it is wide. How wide is the room? How long it the room?

207. ## math

what square number is less than 64 but greater than 36? write a multilication sentence to solve.

208. ## physics

It takes 15 seconds for a wave to pass a buoy 25 meters from shore. If its wavelength is 30 meters, what is its speed.

209. ## algebra

how do i factor 4xx-36?

210. ## math

8x+16÷x^(2)-1 . x+1÷4x+8

211. ## math

Which is bigger 98in. or 5yd.

212. ## Maths

What is 5y=9+2y

213. ## Physics

A mass m at the end of a spring vibrates with a frequency of 0.92 Hz. When an additional 600 g mass is added to m, the frequency is 0.64 Hz. What is the value of m?

214. ## math

Raymond has exactly 360 square inches of cardboard to make a box. He wants two of the dimensions to be 6 inches and the other one to be a whole number of inches. How many different size boxes can he make?

215. ## math

help please!!!!!! explain how you would find the length of one side of a square if the area is 36 square units.

216. ## math

(3xsquared-7x-6)+(2xsquared-4x+1) simplify

217. ## math

set out in tens and ones 32 + 10 = 43 + 54 = 28 + 61 = 15 + 73 =

218. ## math

Jeff put a small box that is 12 inches long, 8 inches wide, and 4 inches tall inside a box that is 20 inches long, 15 inches wide, and 9 inches high. How much space is left in the larger box?

219. ## calculus 2

integrate x^5/(x^2 + sqrt(2)) using a table of integrals

220. ## math

Mrs Nelson has a rectangular flower box that is 5 feet long and 2 feet tall. She wants the width of the box to be no more than 5 feet. If the width is a whole number, what are the possible volumes for the flower box?

221. ## math

help !! the area of a rectangle is 56 square inches. the width of the rectangle is 7 in. what is the length??

222. ## Music

What does the G/B chord mean, on guitar? Why is it called G/B?

223. ## chemistry

How many grams of copper will be required to replace silver from 200 mL of 3.00M solution of silver nitrate AgNO3?

224. ## ETH

Should applications from certain countries be given priority?

225. ## Com/155

Explain why using pronouns may help make your writing more effective?

226. ## Math

Which of the following formulas could be used to calculate the combined area,x of threw identical circles? A. X= 3pie r squared B. X= 6 pie r C. X= pie r squared/ 3 D. X= 6 r/ pie

227. ## chemistry

How many grams of copper will be required to replace silver from 200 mL of 3.00M solution of silver nitrate AgNO3?

228. ## math algebra

wanted to know if I got the correct answer? question (2a10b2)(3a2b2) answer 6a^12+5a^12b^4+b^4

After combing through the research on twin studies, one could conclude that

230. ## Whitney

Stacy rolled a cube numbered 1 through 6 two times. what is the probability that the sum of the rolls was 7?

231. ## math

girls are 1 half of the 5 grade class two tenths of these girls have red hair.red haired girls are what fraction of the 5 rade

232. ## Math

The owner of the Rancho Grande has 3028 yd of fencing with which to enclose a rectangular piece of grazing land situated along the straight portion of a river. If fencing is not required along the river, what are the dimensions of the largest area he can

233. ## math

draw three differentiy shaped cross sections of an ellipsoid

234. ## math

By cutting away identical squares from each corner of a rectangular piece of cardboard and folding up the resulting flaps, an open box may be made. If the cardboard is 16 in. long and 6 in. wide, find the dimensions of the box that will yield the maximum

235. ## accounting.plz urgent

If an item is purchased with terms of 2/EOM, n/60, there is a discount for paying within 60 days

236. ## English

1. Dancing is fun. (Is 'fun' and adverb or a noun?

237. ## algebra 2

(9+4i)+(-13+7i)

238. ## Physics

How do you show that the kinetic energy is equal to the atoms rest energy when its velocity equals .886 times the speed of light? Thanks in advanced!

239. ## chemistry

a) The OH- concentration of 0.050 M ammonia, NH3, is 9.5x10^-4. Write the equilibrium equation for its ionization and the equilibrium constant expression; solve for the value of K.

240. ## physics

A 5.8 g bullet leaves the muzzle of a rifle with a speed of 306 m/s. What total constant force is exerted on the bullet while it is traveling down the 0.75 m long barrel of the rifle?

241. ## pharmacology 1

identify the vitamin converted by sunlight on the skin and found in fortified food products

242. ## Algebra

This problem has been very hard for me. I would appreciate it if someone could maybe help.. Solve: 2a - b = ac + 3b for a I came up with a = c + 4b but I really don't know..

243. ## English

Can you please check these few sentences, please? Thank you. I'm not sure about the paraphrasis of a Will Smith's song. 1) The members of Sinn Fein protested (I need a synonym) about the discrimination against Catholics. 2) Heavy bomber raids continued on

how can you figure out the length of a shadow if you walk closer to a lamppost?

245. ## chemistry

The OH- concentration of 0.050 M ammonia, NH3, is 9.5x10^-4. Write the equilibrium equation for its ionization and the equilibrium constant expression; solve for the value of K.

246. ## Math

John has scores of 88,73,90,85,93 on five math quizzes. What scores must john earn on the next math quiz to have a mean quiz score of exactly 88?