# Questions Asked onFebruary 1, 2012

1. ## Physical Science

A bicycle and its rider together have a mass of 80 kg. If the bicycle's speed is 6m/s, how much force is needed to bring it to a stop in 4 seconds

2. ## geometry

An angle bisector of a triangle divides the opposite side of the triangle into segments 6 cm and 5 cm long. A second side of the triangle is 6.9 cm long. Find the longest and shortest possible lengths of the third side of the triangle. Round answers to the

3. ## 3rd grade math (not algebra!)

There are 18 bikes in a bike rack. There are 4 more blue bikes than yellow bikes and 2 less yellow bikes than green bikes. How many bikes of each color are in the rack?

18. ## economics

Picabo borrows $1,000. To repay the amount she makes 12 equal monthly payments of$90.30. Determine the following: (a) The effective monthly interest rate (b) The nominal annual interest rate (c) The effective annual interest rate

19. ## pharmaceutical calculations

1. A chemical crystal weighs 3.630 grams in air and 1.820 grams when immersed in an oil. If the specific gravity of the oil is 0.837, what is the specific gravity of the chemical? 2. A piece of wax weighs 42.65 grams in air, and a sinker weighs 38.42 grams

20. ## Math-trig

A Ferris wheel with a diameter of 100 feet rotates at a constant rate of 4 revolutions per minute. Let the center of the Ferris wheel be at the origin. The height h (in feet) of a Ferris wheel car located at the point (x, y) is given by h = 50 + y where y

21. ## chem

tell whether .1M solutions of the following salts would be acidic, neutral, or basic: CaCl2, CuSO4, (NH4)2SO4, KClO4, KClO4, NaCN.

22. ## physics

Three carts of masses 5 kg, 12 kg, and 3 kg move on a frictionless horizontal track with speeds of 5 m/s, 8 m/s, and 4 m/s, as shown in ﬁgure. The carts stick together after colliding. 5 kg 12 kg 3 kg 5 m/s 8 m/s 4 m/s Find the ﬁnal velocity of the

23. ## Physics

A car's initial velocity of 13.5 m/s accelerates at a rate of 1.9 m/s^2 for 6.2 s. Then, it accelerates at a rate of -1.2 m/s^2 until it stops. 1) What is the car's maximum speed? 2) What is the total time from the start of the first acceleration until the

24. ## Physics

A 14000 kg railroad car travels alone on a level frictionless track with a constant speed of 24.0 m/s. A 6500 kg additional load is dropped onto the car. What then will be the car's speed?

25. ## trig

The angle of elevation to the top of a very tall Building is found to be 15° from the ground at a distance of 1 mi from the base of the building. Using this information, find the height of the building

26. ## Physics

A worker drives a 0.509 kg spike into a rail tie with a 2.08 kg sledgehammer. The hammer hits the spike with a speed of 63.3 m/s. If one ﬁfth of the hammer’s kinetic energy is converted to the internal energy of the hammer and spike, how much does the

27. ## Phsics

I want to see the calculations.

asked by The range of a target is found to be 20km. A shell leaves a gun with a velocity of 500ms-1. What must be the angle of elevation of the gun if the ground is leueled?
28. ## Math

1. Jacksonville Technical College received $3,445,553 in state aid on September 15 for the fall academic semester. The vice-president for finance decided to invest$2,000,000 in a 2-month investment that pays 11.5% simple interest. How much interest will

29. ## physics

A raft is constructed of wood havig a density of 600kg/m^3. The surface area of the bottom of the raft is 5.7m^2 and the volume of the raft is .60m^3. When the raft is placed in fresh water having a density of 1000kg/m^3, how deep is the bottom of the raft

30. ## Physics

An elevator (mass 4175 kg) is to be designed so that the maximum acceleration is 0.0700g. What is the maximum force the motor should exert on the supporting cable?

31. ## Chemistry

During a fractional distillation of a 25mL ethanol/H2O soln, it was found that first the temperature stayed constant at ~75 C for 3mL of soln, then it went up to 100 C for the rest of the soln. The first question is: Assuming that the unknown (ethanol) did

32. ## physics

A motorcycle traveling 91.0 km/hr approaches a car traveling in the same direction at 83.0 km/hr. When the motorcycle is 52.0 m behind the car, the rider accelerates and passes the car 16.0 s later. What is the acceleration of the motorcycle (in

33. ## Math

List all possible rational roots, use synthetic division to find an actual root, then use this root to solve the equation. x^3 -7x^2 +13x -7=0

34. ## Physics

A freight train has a mass of 1.7 107 kg. If the locomotive can exert a constant pull of 7.6 105 N, how long does it take to increase the speed of the train from rest to 64 km/h?

35. ## math

Light travels at a speed of 186,282 miles per second. How could this number be expressed in scientific notation? 1)1,862.82 x 10 x10 x10 2)1.86282 x 10 x10 x 10 x10 x10 3)1.86282 x 10 x10 x10 x10 4)186.282 x -10 x-10 x -10

36. ## Pre-Algebra with PIZZAZZ

First, what is the code for What should you say when you meet an angel? Second, what are the answers to it for 9-14?

37. ## physics

calculate the force of gravity between earth (mass = 6.0 x 1024kg) and the moon (mass = 7.4 x 1022 kg). the average Earth-moon distance is 3.8 x 108 m.

54. ## Mechanics AQA igher

A ship is being steered due east. A current is flowing from north to south, so that the actual velocity of the ship is 12 km/h on a bearing of 120 degree . Find the speed of the current and still water speed of the ship

55. ## physics

A ball rolls off a platform that is 5 meters above the ground. The ball's horizontal velocity as it leaves the platform is 4.8 m/s. (a) How much time does it take for the ball to hit the ground? (Use g = 10 m/s2.) . s

56. ## chem

1) When a mixture of potassium chlorate and an appropriate catalyst is heated in an open test tube, potassium chloride and oxygen gas are produced. This reaction is not reversible, because a. the system reaches equilibrium b. the reaction does not go to

57. ## math

Bikes, Trikes and more At Brittany's Bike shop, she rents all kinds of cycles: unicycles, tandems, regular bikes, and even tricycles. She parks all the cycles in front of her shop with a helmet for each rider strapped to the cycles. This morning Brittany

58. ## Physics

A 9500 kg boxcar traveling at 19 m/s strikes a stationary second car. The two stick together and move off with a speed of 10 m/s. What is the mass of the second car?

59. ## multiplication and arrays

strategy practice explain hoe you can multiply 3x24 by using arrays. then give the product.

60. ## College Algebra

Students in an English class took a final exam. They took equivalent forms of the exam at monthly intervals thereafter. The average score S(t), in percent, after t months was found to be given by . a) What was the average score when they initially took the

61. ## Physics

A car is speeding at 33.4 m/s. A police car starts in pursuit from rest when the car is 100 m past the cruiser. At what rate must the cruiser accelerate to catch the speeder before the state line, 1.2 km away from the speeding car? Include all steps if

62. ## Math: Algebra

Landon can climb a certain hill at a rate that is 2.5 mph slower than his rate coming down the hill. If it takes him 6 hours to climb the hill and 45 minutes to come down the hill, what is his rate coming down?

100. ## Chemistry

Find the value of delta H net for the following equation: SnBr2(s) + TiCl4(l) -> TiBr2(s) + SnCl4(l) I know that I already posted this once but I am still lost on what to do. I know that TiCl4=-804.2 and SnCl4=-511.3 but I thought that the values for SnBr2

101. ## physics

An electric car accelerates for 7.2 s by drawing energy from its 430-V battery pack. During this time, 1700 C of charge pass through the battery pack. Find the minimum power rating of the car.

102. ## chem

If the pH of a solution is 9, what are the hydrogen ion and hydroxide ion concentrations?

103. ## Ochem

What volume of 6.43% (wt.vol.) NaOCl solution is required to oxidize 221 mg of 9-fluorenol to 9-fluorenone? I'm not to sure of where to start with this problem. Please help!

104. ## science

if the distance between crest were 1.5 meters apart, and 2 crest pass the pole each second, what would be the speed of the wave ?

105. ## math

When you subtract 2 from a number double the difference and then add 7 you get 57. What is the number

106. ## Statistics

For a math assignment we need to design a dice roll game with different expected values of winning. The game should require a player to make a bet on the sum of one roll of two dice. If the dice sum to that number, the player wins; otherwise, he loses. We

107. ## Physics

A hot-air balloon is rising upward with a constant speed of 2.50 m/s. When the balloon is 3.00 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

108. ## Math

Solve the inequality by first rewriting it as an equivalent inequality without absolute value bars. Express solution set using interval notation. | x+3 | +8 is less than or equal to 14 Thanks so much for helping me!

109. ## Biology

If all nerves respond to stimuli why can’t your eyes “hear” sound and your ears “see” light?

122. ## math

Gwen was planting tomato plants in a row 6 2/3 yards long. She put the plants 2/3 yard apart. How many plants were in the row?

123. ## Algebra

Students in an English class took a final exam. They took equivalent forms of the exam at monthly intervals thereafter. The average score S(t), in percent, after t months was found to be given by . a) What was the average score when they initially took the

124. ## Organic Chemistry

How many moles of hypochlorous acid are needed to react with 0.257 mol of 9-fluorenol? Molecular weight of hypochlorous acid = 52.46 g/mol MW of 9-fluorenol = 182.22 g/mol

125. ## biology

Describe the to type of energy changes that can occur in a chemical reaction Thanks

asked by glenn help help help
126. ## Math 543 HELP!!

Randy had a sheep that started eating more and more as each day passed. On July 1, Randy’s sheep ate 5 carrots. On July 2, Randy’s sheep ate 11 carrots. On July 3, the sheep ate 18 carrots. How many carrots will the hungry sheep eat on July 30th?

127. ## Math

Use the given root to find the solution set of the polynomial equation. x^3 + 8x^2 -18x +20= 0 ; 1+i

128. ## chem

1) If more reactant is added to a gaseous reaction at equilibrium, what will happen to the value of the equilibrium constant? a. it will increase b. it will decrease c. it will remain the same d. it can either increase or decrease 2) Which of the following

129. ## trig

What is the length of the circular arc intercepted by a central angle of 20degrees in a circle with a radius of 5cm?

130. ## Ochem

how many grams of NaOCl are in 12.14 mL of a 6.65% (wt./vol.) NaOCl solution? Please help me set this up... I have no idea what to do.

The roots of the equation x^2+(a+3)x-2b=0 are -2 and -3. Find the values of a and b.

132. ## chemistry

the amount of heat when 65g of water at 100c until it cools to 37c

Given one of the roots of the quadratic equation x^2+kx=12 is one third the other root. Find the possible values of k.

134. ## chemistry

if 68.0g of NH3 react with 304g of F2, how many grams of N2F4 are produced

135. ## English

I urgently need you to revise this short summary. Thank you. 1) Robinson travelled twice two Africa. On his first voyage to Africa they were caught in a storm but they eventually saw a boat, jumped onto it and saved their lives. 2) On his second voyage he

136. ## math-algebra

There are 10 boxes,if 7 contain pens,3 contain pens and pencils,2 contain pencils only.how many empty boxes are there?

139. ## Chemistry

What is the empirical of compound (X) going through the following decomposition reaction? X = sulfur + oxygen + nitrogen sulfur = 21 gr oxygen = 69.70gr nitrogen = 6.10gr

172. ## Statistics

A study was conducted to investigate relationships between different types of standard test scores. On the Graduate Record Examination verbal test, 18 women had a mean of 538.82 and a standard deviation of 114.16, and 12 men had a mean of 525.23 and a

173. ## algebra

find the L.C.D of each of the following and groups of fractions and then express the fractions of each group in terms of the L.C.D of that group... please show work 1\2,3\4,11\16 2\3,1\8,5\12

174. ## physics

suppose a 1.50 kg object is suspended from the end of a silicone band. when the object is pulled down and released, the band vibrates at a frequency of 2.08 s-1. calculate the spring constant of this silicone band including units.

175. ## math

James drew a number line from 0 to 120 by fives. How many natural numbers were listed on the number line?

176. ## social studies

Hi I have to write a short paper connecting The United States Declaration of Independence and how it plays a role in todays world. What are some connections that I could write about? Thanks!

if m

178. ## Physics- moles and gas laws

What is the volume occupied by 8.0 g of hydrogen under a pressure of 2.8 atm and a temperature of 300 K?

179. ## Math

Pamela and David walk on the same track. It takes Pamela 9 minutes and David 6 minutes to walk one lap. If they start walking at the same time, how many laps will each have walked when they cross the starting point together for the first time?

180. ## calc

Use L’Hopital’s rule to find the limit of this sequence (n^100)/(e^n) ...If you do L'Hop. Rule it would take forever, right? You would always get an (e^n) at the bottom and will have to use the L'Hop. rule 100 times to find the limit...100*n^99,

181. ## physics

An artillery shell is launched on a flat, horizontal field at an angle of a = 43.5° with respect to the horizontal and with an initial speed of v0 = 263 m/s. What is the horizontal distance covered by the shell after 6.77 s of flight? What is the height

182. ## physics

A cannon is fired from a cliff 190 m high downward at an angle of 21° with respect to the horizontal. If the muzzle velocity is 34 m/s, what is its speed (in m/s) when it hits the ground?

183. ## calc

does the sum of [(-5)^n]/[13^(n+1)] converge? as n goes to infinity I think that since it oscillates it does not go to infinity. and therefore the series diverges.

184. ## Chemistry

What are the Empirical Formulas of the following compounds? K21P7014 = Al12Ag6O5 = H2C12O24 = C12H30O60 = Dicarbon tetrachloride = Baking Soda =

185. ## economics

Which banking service provides easy access to money, monthly statements, easier bill payment, and more security than carrying cash?

186. ## Math

Given points P(2,-1), Q(-4, 2), and M(5,3), find coordinates of a point K such that MK is perpendicular to PQ.

187. ## Sammons

how to find the product of 38 and 75?

188. ## physics

An automobile travelling with an initial velocity of 25m/s is accelerated to 35m/s in 6 second. The wheel of automobile is 80cm in diameter. Find the angular acceleration

189. ## social work

If you were appointed Patient Advocate for a close relative (parent, sibling, spouse, child, etc.) would you be able to carry out their wishes, including a wish to end their life if...? Would age or disability make a difference in your ability to serve as

190. ## Math

List these numbers from least to greatest: 4 over 5,3 over 5,and 3 over 4 Please help me with a cherry on the top!!!

191. ## Precalculus

I keep getting wrong answer for this question. Write as a single logarithm log(x+1)+2log(2x+1)-log(x-3)

192. ## social studies

help me plzeeeeeeee

193. ## physics

A moving particle encounters an external electric field that decreases its kinetic energy from 9530 eV to 7800 eV as the particle moves from position A to position B. The electric potential at A is -69.0 V, and that at B is +39.0 V. Determine the charge of

194. ## Physics

A ball bounces vertically on the ground after being thrown vertically up into the air by a boy standing on the edge of a building

195. ## Chemistry

The melting point of a pure solvent (kf=1.79°C/m) is -116.3°C. If 312 g of an ionic solid (i=2.6) is added to 567.7 g of the solvent, the new melting point is -101.6°C. What is the molar mass of the ionic solute?

196. ## math

At an arts and crafts fair, 65% of the vendors are selling either wooden handicrafts of paintings. What is that percent rounded to a compatible fraction?

197. ## math

The temperature outside rose 41 degrees during a 12 hour period. If the temperature rose the same number of degrees every hour, what is a good estimate of the number of degrees the temperature rose each hour?

198. ## chemistry

An antibiotic is sold in 4.0 mL ampoules that contain 60.0 mg of drug (60.0 mg/ 4.0 mL). How many milliliters of the antibiotic should be withdrawn from the ampoule if 20 mg are to be administered to a patient?Use correct number of sig figs 0.75ml?

199. ## math

Drew was leveling a table. One corner had to be raised 3/4 inch. He had some pieces of wood 1/16 inch thick. How many pieces of wood would he need to use for the corner to make the table level?

200. ## Physics

An alpha particle (helium nucleus, charge +2e) starts from rest and travels a distance of 1.88 cm under the influence of a uniform electric field of magnitude 12.2 kV/m. What is the final kinetic energy of the alpha particle?

201. ## Chemistry

How many moles of hypochlorous acid are needed to react with 0.151 mol of 9-fluorenol? Is 0.524 moles correct?

202. ## math

Dylan loved pencils. He had a whole box full of pencils in different colors and designs. One-seveth of them were yellow, one-sixth of them were blue, and the rest of the pencils had designs on them. What fraction represents the pencils with designs on

203. ## Pre-Calculus

Assume sin A = sin B. If A = π/8, find B. Please show work so I'll know what to do.

204. ## Chemistry University One

Is it possible for a calorimeter to have a high specific heat capacity, such as 2780J? I don't know if that is a reasonable answer.

205. ## Physics

What is the acceleration of an 0.4m aluminum cube with a density of 2.72 in a beaker of methanol, which has a density of .791?

206. ## Physics

Two particles Q and P are shot up vertically.P was first shot with velocity of40m/s and after4s.Q was also shot up.If upon meeting the velocity ofP is 15m/s.determine(1)where they met.(2)the velocity with which Q was shot up.Take g= 10m/s2

207. ## Ochem

What volume of 6.83% (wt./vol.) NaOCl solution is required to oxidize 223 mg of 9-fluorenol to 9-fluorenone? Please help me set this up!

208. ## organic chemistry

If you are given a 6.75% (wt./vol.) NaOCl solution, how many grams of NaOCl are in 100 mL of the solution? how do you do this please???

the percent of all adults who take photographs is greater than the percent who play word games but less than the percent who bake. what fraction of all adults might take photographs? Using this table Activity Percent Baking. 17 Barbecuing. 32 Playing

210. ## math,geometry

Find 3 upper case letters that look the same when rotated 180 degrees. Then, what letter's 90, 180, and 270 degree rotations has this outline? This is also the inside lines formed by the rotation of what letter? and could explain how you did it please i

211. ## trig

in proving trigonometric identities if cot theta sin theta = cos theta. what is the correct answer?

212. ## calculus

find the area enclosed by y=x^2 and y=sinx in the first quadrant.

213. ## College algebra

use interval notation to express the solution set of the inequality |2x + 3|> or equal to 9

214. ## math

Mrs. White is planning a barbeque for Mardi gras day. She will serve tea or coffee, barbequed chicken or ribs and cole slaw or potato salad.How many choices of a beverage, a meat and a salad does she have for her party? THANK YOU :D

asked by MS SUE FAN!!! :)
215. ## math

Connor found the sum of the first three even numbers and obtained the result of 48. Oops,what mistake must he have made? Thank you anyone who helps me I really appreciate it :3

216. ## science

what is co2 ..can anybody remind me because i forget.

217. ## Math

Simplify: 2sqrt(72)

218. ## geometry

find the perimeter of a regular hexagon having sides 5 2/3 inches long

230. ## Quantitative Analysis Simulation Modeling

Define operational gaming and give an example.

231. ## biology

Describe how atoms in a compound are held together thank you

asked by glenn help help help
232. ## math

How many kilometers can light travel in 1 year? How many kilometers can light travel in 365.25 days? Show me Thank You

asked by glenn help help help
233. ## math

While riding your motorcycle, you break to miss hitting a dog. your tires leave a skid mark as you come to a stop. the skid mark forms four angles when it crosses the painted line on the side of the road. one angle formed a 62 degree angle. what other

234. ## math 8

10 choices of ice cream and 5 choices of toppings what is the probability that you get favorite ice cream and topping ?

235. ## physics

i am going a center of gravity problem, with the x=w1(x1)+w2x2..../ W1+W2.. and i keep getting the wrong answer can someone please tell me what i am doing wrong this is the problem:Four objects are situated along the y axis as follows: a 1.94 kg object is

236. ## Russian History

Did Peter the Great end communism?

237. ## ELA

Can someone give me a similie sentence having the word nice in it?

238. ## Physics

A bloc of 10 kg is put at the top of an inclined plan of 45 degrees (to the left), attached to a spring which has a spring constant of 250 N/m. The coefficient of kinetic friction between the bloc and the surface of the inclined plan is of 0,300. What is

239. ## ethics

If you were appointed Patient Advocate for a close relative (parent, sibling, spouse, child, etc.) would you be able to carry out their wishes, including a wish to end their life. Would age or disability make a difference in your ability to serve as their

240. ## philosphy

In a philosophical search for truth, what makes Plato’s Allegory of the Cave an important concept?

241. ## Geometry

9 over x = 15 over 25 what is x?

242. ## math

round 47 eihgts inches to the nearest i half inch and the nearest inch

243. ## economics

How do economists determine the real GDP per capita?

divide 5x^3y^2+xy^4 by xy how do you work this?

245. ## economics

A prolonged economic contraction is called ?

246. ## physics

A hockey puck has no friction on it. It has a mass of 0.28 kg and experiences a force of 48 newtons. What is its acceleration?

247. ## french

what does virage mean? i cannot find it in my english to french dictionary....

248. ## AGL 2 (Geometric Series)

Is their a formula for finding the Sum for Geometric Series?

249. ## math

Andy has the 2 cubes shown here. They have the numbers 1,2,3,4,5,and 6 on their faces. If he rolls the cubes together, what is the probability that the 2 numbers showing at the top of the cubes will total 6 when added together?

Background: Ten years ago, you started working as a clerk for DMD Medical Supplies. Six months ago, Liz Jakowski, the human resources director, promoted you to office manager. You manage two employees: Jack Snyder and Ruth Disselkoen. Your office provides

251. ## history

Discuss the importance of landscape in crafting battle strategy for both the French and the English. Help please! talking in general.. no one specific battle

252. ## Chemistry

Why is Mo(II)nitride = MoN3 and not M02N3 Also Why is PbO2 not Pb2O4 Thanks You!

253. ## chemistry

You are traveling in a country that uses the metric system. Your child is sick and a nurse determines her temperature to be 40.8 ºC. What is this temperature in ºF? (1.8*40.8)+32=105.44 105 (answer with correct # of sig figs)

254. ## algebra

The exact value of c is √22. What is the approximation of c to three decimal places

255. ## Reiny/ MATH Help

THANK YOU VERY MUCH!!! I forgot to say thank you for this answer the other night. There are 900 of those counting numbers with no restriction. Let's find all those that DON'T have a 2 in them there are 8 possible in the left spot , (no 2 or 0) but 9

256. ## Physics

A plane flies at 800km/h in stationary air. The distance to be traveled is 3000km. What was the wind speed if the journey actually takes 4.0 hours?

total points of the semester you can earn 170 but i scored 140 what is my grade

258. ## Financial math

what would be the fee for a buyer to purchase 2 discount points on a home with a sale price of 275,000

259. ## Math

solve for x 2^x=0.125 5^2x=39 13^x=27

260. ## law

A __________ is one way that a will can be changed without executing an entirely new will. A. revocation B. devise C. codicil D. legacy is it D

261. ## Information Systems

Hi ..Can somebody suggest me some good ideas or topics for senior projects related to Information Systems. Thank You !

262. ## algebra

What is the solution set for 10^x=2.5

263. ## Precalculus

Write as a single logarithm log(x+1)+2log(2x+1)-log(x-3)

264. ## World Civ

Why were so many people living in the European countryside dependent on aristocracy? (during and before the agricultural revolution in Europe)

265. ## World Civ

How did advances in military technology change warfare in 16th century Japan? How was the strategic balance of power reflected in the government created by Tokugawa leyasu?

266. ## English

I revised the sentences again. Now I really need your final check At the end of their two-year project students will be able to 1) master the basic linguistic structures to operate in a work/scientific environment (I don't know how to express it) 2) be

267. ## trig

a grocery store display consists of cases of soda. there are 15 cases at the base, and 1 case at the top. if there are 15 rows, how many cases are needed for the entire display? a) 180 b)30 c)130 d)15

268. ## math

In a class of 71 students, the number of females is one fewer than twice the number of males. How many females and how many males are there in the class?

269. ## calc

Use L’Hopital’s rule to find the limit of this sequence (n^100)/(e^n) ...If you do L'Hop. Rule it would take forever, right? You would always get an (e^n) at the bottom and will have to use the L'Hop. rule 100 times to find the limit...100*n^99,

270. ## math

Is there any pair of numbers whose product is the same as its sum? Thank you for the help :)

271. ## math IV

in proving trigonometric identities if cotangent theta multiply sine theta is equal to cosine theta. what is the correct answer?

272. ## math,angles

Could anyone help me with showing me how to bisect an angle

273. ## English

Could you please check the following sentences, please? 1) Our teachers haven't helped us at all to establish the objectives or the possible results of our project. 2) That's why I believe we should consider the possibility of including Finland in our

274. ## algebra

what is a pythagorean theorem? How is it used?

275. ## science

what technologies or what do explorers need to survive a volcano underwater and space?

276. ## Science

Which of the following describes a learned behavior? A. A cat nursing its kittens B. A parrot singing words to a song C. A mocking bird building a nest D. A zebra's black and white stripes. B?

277. ## algebra

Sam earns R1 350 per week doing tiling. How much does sam earn in an hour if he works 45 hours a week?

278. ## Social Studies

Was Montenegro part of the Allies or was it a Neutral Nation during World War I?

279. ## IT test

find the odd term in the series below: 8,13,20,31,44,60,80

280. ## Accounting

Last year, Jasper Company earned operating income of $139,600 with a contribution margin ratio of 0.3. Actual revenue was$237,000. Calculate the total fixed cost. Round your answer to the nearest dollar.

281. ## english

i am in 7th std please tell me the meaning of squeezing

282. ## Math

It took Chef Flay 3/4 hour to buy groceries and 1 1/2 hours to prepare a meal. How many minutes did it take Chef Flay to shop and prepare the meal? A.225minutes B.120minutes C.150minutes D.135minutes D?

283. ## math

In the megalopolis stadium there were 32 sections, and each section could seat 950 people. How many people could the stadium seat?

284. ## university studies

how do you think presenting informatoion differs from writing a paper about that information?

285. ## math

Sam has 5 red shirts 2 pink shirts and 3 yellow shirts. If she closed her eyes and chooses one shirt at random to wear on Compliments day, what is the probability that she will NOT choose a yellow shirt? Thank you helpers :)

286. ## Math

Mrs. Lucida has budgeted \$400 for the party. Write and solve the inequality. Solve how many hours the party would last

287. ## elapsed time

10:30am to 1:20 what is the answer

288. ## math

SIN .9271 = to what degree?

289. ## Math

Quintera and her family were flying from New York to Florida. Their plane departed at 10:155A.M. and arrived in Florida at 1:37P.M. How long was Quintera's flight? A. 9h 18min B. 14h 42min C. 3h 42min D. 2h 42min D?

290. ## physics

it takes 14 seconds for a runner to go from 5m/s to 19m/s? how do you calucate acceleration

291. ## Math

To have a constant concentration of .25 ppm of a substance with 18,000gal/water flowing, how much would I need to add per minute? Does that make any sense? How would I go about answering that? I don't want the answer, but maybe just a push in the right