# Questions Asked onSeptember 26, 2012

1. ## Science

Which of these statements concerning the interaction of light waves with the glass of a greenhouse is correct? A. Infrared is transmitted through the glass and is changed to heat B. The glass reflects ultraviolet waves C. Visible light is transmitted

2. ## biology

draw digrams of phases of meiosis in a cell with 2N=. include with both divisional sequence, but not draw any of the subdivision of the phase e.g early prophase. distinghish between chromosomes from each parent, and detail the event of synapsis,

3. ## math

5/9x+2-1/6x=11/18x+1/3

4. ## CALCULUS HELP

Find the second derivative for the function 5x^3+60x^2-36x-41 and solve the equation F(X)=0 i got to the second derivative but what do we do next to be able to get one of these answers.. F(x) = 5x3+60x2−36x−41 1. derivative of F(x) with respect to x =

5. ## math

Suppose that a department contains 11 men and 19 women. How many ways are there to form a committee with 6 members if it must have strictly more women than men?

6. ## math

number sense does the expression d-12 have a greater value when d=42 or when d=46

7. ## math

number sense does the expression d-12 have a greater value when d=42 or when d=46

8. ## math30

Determine the sum of the following geometric series. Round your answers to 4 decimals if necessary. a) 50 over sigma k=1 8(.5)^k-2

9. ## PE

what is the common objectives between science curriculum and PE curriculum ?

10. ## math

If a permutation is chosen at random, what is the probability that it begins with at least 2 A's?

11. ## physics

if I drop a camera 40m high,how long before it hits the floor? G= 9.81

12. ## math

Suppose you are managing 16 employees, and you need to form three teams to work on different projects. Assume that all employees will work on a team, and that each employee has the same qualifications/skills so that everyone has the same probability of

13. ## science

explain the role of warm and cold air in the formation of tornadoes?

14. ## chemistry

Prepare 1.5 liters of 0.25 M Tris buffer, pH 7.5. Useful information: pKa Tris = 8.1 Formula weight of Tris (hydroxymethyl aminomethane) base = 121.1 Formula weight of Tris hydrochloride (acid form) = 158.0

15. ## Math

I forget how to do these type of word problems. Assume you working on the house pictured below. The length of the house is 50 feet, the width is 30 feet, and from the ground to the gable (the height of the rectangle) is 10 feet. The height of the

16. ## Chemistry

A student dried a wet crucible with a kimwipe. A piece of kimwipe was left clinging to the inside wall of the crucible. The student did not see the piece of kimwipe when adding the NaHCO3-KCl mixture to the crucible. The crucible and its contents were

17. ## calculus

Find an equation of the line that is tangent to the graph f and parallel to the given line Function: f(x)= 1/ square root of x Line: x+2y-6=0

18. ## Calculus-math

Find an equation of the line that is tangent tothe graph of f and parallel tothe given line. Function: 1/square root of x Line: x+2y-6=0

19. ## Algebra

How do I find the domain and range of the functions? 1. f(x)=2/3x - 4 2. f(x)= x^3-3x+2 3. f(x)= 1/2 l x-2 l 4. f(x)= l x-1 l / x-1

20. ## physics

A pendulum bob of mass -m is suspended at rest a constant horizontal force f= mg starts acting on it . Find thecmaximum deflection of the string and the maximum tension in the string

21. ## Geometry

what are the next to terms in the pattern 7, 2, 5, -3, 8, -11

22. ## Geometry

what are the next to terms in the pattern 7, 2, 5, -3, 8, -11

23. ## Algebra 2

[(x^2+4x+3)/(2x^2-x-10)]*[(2x^2+4x^3)/(x^2+3x)]*[(x)/(x^2+3x+2)]

24. ## Physics

A satellite sitting on the ground has a weight of 5000 N. When it is placed in orbit 500 km above the surface of the Earth (which has a radius of 6380 km), which choice best describes its weight? Very small but slightly greater than zero. Zero. Still 5000

25. ## Physics

If you suddenly multiplied the mass of Earth by a factor of 4, how would the period of a satellite change, if the radius of its orbit did not change? 4 times as long 1/4 as long 2 times as long 1/2 as long Unchanged

in the last three years, Fred's basketball team won 30 more games than they lost. if they won 150 games, what was their ratio of wins to losses? What are three different ways to show the ratio? what is the unit rate if Ramon drives his car 180 miles in 3

27. ## maths

A certain nine digit number has only ones in ones period,only two’s in the thousand period and only threes in millions period .Write this number in words in the Indian system

28. ## statistics

Thomas needs a b in his class. his current test scores are 88, 83, 86 and 72. his final exam is worth 3 test scores. In order to ear a b Thomas average must lie between 80 and 89 inclusive. what range of scores can Thomas receive on the final to earn a b

29. ## math

what is the least number of tiles that are needed to completely cover a rectangular center piece 3 yards by 5 yards if a rectangular decorative tile is 2 inches by 3 inches respectively?

30. ## Math

Let f(x) = 2x-1 and g(x) = 4-x. Find all values of x for which f(x) < -1 or g(x)

31. ## algebra

what is the least number of tiles that are needed to completely cover a rectangular center piece 3 yards by 5 yards if a rectangular decorative tile is 2 inches by 3 inches respectively?

32. ## PE

list the common objectives between science curriculum and PE curriculum ?

33. ## Math

A function of 2 variables is given by, f(x,y) = exp(2x-3y) Find the tangent approximation to f(1.155,0.632) near (0,0). Thanks!

34. ## 6th grade Math

Having a problem on a proportion question. The problem is you have surveyed 30 people on their favorite song. 21 females and 9 males. The most popular genres are pop, country, and hip hop. The ratio for females who picked pop is 18 to 21 and the raio of

35. ## Math

Is The Set {cos1,cos2,cos3,cos4,...} under usual topology closed??? whatbiis its closure????

asked by Itrat abbas mirza
36. ## Maths

What Is The closure of the set {cos1,cos2,cos3,cos4,...} under usual topology????

asked by Itrat Abbas Mirza
37. ## geometry

Úc ≅ Úd, mÚc = 5x - 7, and mÚd = 3x + 25, how many degrees are in Úc

38. ## Math

The number N of state and federal inmates in millions during year x, where x>2002 can be approximated by the following formula. N = 0.05x - 98.45 Determine the year in which there were 1.9 million inmates.

39. ## Physics

A car is towing a boat on a trailer. The driver starts from rest and accelerates to a velocity of +14 m/s in a time of 25 s. The combined mass of the boat and trailer is 401 kg. The frictional force acting on the trailer can be ignored. What is the tension

40. ## physics

Why should we add a the value 273 to change a celcius value in to kelvin.?

41. ## Physics

The person in the drawing is standing on crutches. Assume that the force exerted on each crutch by the ground is directed along the crutch, as the force vectors in the drawing indicate. If the coefficient of static friction between a crutch and the ground

42. ## geometry

PM is the median of trapezoid KLNO. If ON = 24 centimeters and KL = 12 centimeters, which is the length of PM

43. ## business math

Hello,I'm just confuse with this problem: Find the due dates of each of the following notes. 1.) Date of loan: October 16, 2001; Time: 120 days. My answer is February 14, 2002.. Im just wondering if my answer is correct.? Thanks.

44. ## Algebra

Ted plans to share some canteens equally among 5 of his friends. Before he shares them, he buys 3 more canteens.Write an expression to represent how many canteens Ted gives each of his friends. Tell what the variavle represents.

152. ## chemistry

a typical E coli is 2um in length, how long is the E coli in nanometers??

153. ## math

Divide 332 by 2 (base 4)

154. ## chemistry

about how many bacteria (e coli) would you have to line up to stretch 1mm??

155. ## Chemistry

Lab: Titration of NaOH (0.1 molar)to unknown solid acid. Trying to determine the equilivent weight of the unknown acid in the experiement. I am trying to figure out if I add too much base solution by accident to an unknown acid during titration would it

156. ## math

3B216 + 2B316 =

157. ## Science

(1)A geologist was studying rocks in a mountain range. She found a layer of sedimentary rock that had formed in the ocean. Hypothesize how this could happen. My (Answer) Sedimentary rocks forms when sediments have been pressed or cemented together , or

158. ## writing algebriac expression

The total amount of money (in cents) in y quarters, 7y dimes, and (2y - 1) nickles.

If you think that your bill is wrong, you should first: A. contact the local credit bureau and inform it of the billing error. B. complain to the Better Business Bureau. C. contact your state consumer protection agency. D. notify the creditor in writing

160. ## math

i need help in math but i don't get it

161. ## Chemistry

I Posted this question the other day: A 1.00 g sample of enriched water, a mixture of H2O and D2O, reacted completely with Cl2 to give a mixture of HCl and DCl. The HCl and DCl were then dissolved in pure H2O to make a 1.00 L solution. A 25.00 mL sample of

197. ## Physical Science

The static frictional between a 500 kilogram box of bricks and the floor is 500 Newton’s. The kinetic frictional force in only 220 Newton’s. How many Newton’s of force must a worker exert to get the moving?

198. ## Pre-Calculus

Graphing Polynomials Decide whether each of the following is sometimes true, always true, or never true and explain reasoning. A. A cubic function has 2 different x-intercepts ^Never true, has to have 3? B. A cubic function has 3 x-intercepts ^ Always true

199. ## science

fill in the blank:the ____, the force acting on an object, the greater the acceleration of the object. It is 6 letters and the third letter is R

200. ## science

1. Force exerted on an area is called _____. (1 point) pressure temperature gravity mass 2. The composition of the atmosphere is changing due to _____. (1 point) smog ozone depletion increase in CO2 (carbon dioxide) all of the above 3. The _____ is the

201. ## Algebra

Can you check 2z - 3y -8z + y I got : 2z-8z-3y +y = -6z -4y =. -2y

202. ## Social studies

How were the ideas of Louis XIV and Philip II similar? How were they different?

203. ## 7th grade math

5. Taylor completed the problem below. Describe and correct the error in the problem. 2–4 = –2 • –2 • –2 •–2 =16 (1 point) 1. Taylor changed the negative exponent to a negative base. 2. (0 pts) Taylor did not multiply correctly. The answer

204. ## HELP

I am writing and essay for social studies and i only have a conclusion left please help!!!! The essay is about the war of England and Spain in the 1500's their war about cultures and i want to finish this essay so i need help with the conclusion!

205. ## math

Sarah is making poster by hand to advertise her school play, but her posters are not the same length as a standand sheet of paper (the width is the same, though). She has three and a half sheets of paper left over, which she says is enough to make two and

206. ## Math

find the difference quotient when given f(x)= -2x^2+4x-1

207. ## Algorithms

Help Please: I need some help and guidance to solving this problem Week 4 CheckPoint – Repetition and Decision Control Structures In one of the week 3 discussion questions we discussed the algorithm that would be required to make a peanut butter

208. ## physics

a race car can be slowed with a constant acceleration of -11m/s2. a.if the car is going 55m/s,how many meters will it travel beofre it stops? b.how many metes will it take to stop a car going twice as fast?

209. ## Pre-Calculus

Operations with Functions write the function below as either a sum/difference/product/quotient of 2 r more functions a. h(x) = x^2+3x+9 How Would I do this? My teacher just did this f(x) = x^2 g(x) 3x+9 ^I don't really understand h(x)=(x+5)(x-3) how would

210. ## physics

A sack of flour has weight of 19.8N. what is its weight in pounds?

211. ## Math

22:2 tens;2 ones;1 tens; 12 ones. Name the word that describes what was done to show the number in different ways.

212. ## math

Tami wrote the even numbers between 325 and 337.the sum of the hundreds digit and tens digit equals the ones digit.what is Tami number?

213. ## physics

astronaut weighs 175Ib. what is his weight in newton?

214. ## Chemistry

Convert 3.01 x 10^23 atoms of silicon to moles of silicon. on my paper i have the equations moles S = 3.01 x 10^23 atoms x 1 mole/6.022x10^23 atoms but i'm not sure how to do this. help?

215. ## math

1/3 + 5/14 divided by 5/7 Any help?

216. ## vocabulary

what does vain mean in simple words please?

217. ## College Physic

I am having problem with this one physic problem. I am not sure where to start can someone help me? Thank You! A 15.0 kg box falls out of an Jet at an altitude of 3000 meters. It reaches a terminal speed of 50 meters per second in 3.20 seconds. Calculate

asked by Monet Nguyen
218. ## Physics

A battery has an internal resistance of 0.42. A number of identical light bulbs, each with a resistance of 31.500, are connected in parallel across the battery terminals. The terminal voltage of the battery is observed to be one-half the emf of the

219. ## 7th grade socal studies

1. According to Confucius, a society will be healthy if people (1 point) choose a ruler who inspires fear. obey their rulers without question. treat each other with respect. give each other money. 2. Two key products China traded with other countries were

220. ## 7th grade Art

1. This element of art is used to create depth in a picture. (1 point) shape pattern space texture 2. This technique is used to angle the lines of roads and buildings in a picture. (1 point) aeriel perspective vanishing point linear perspective atmospheric

221. ## 7th grade Science help

1. _______ is energy that flows from an object with a higher temperature to an object with a lower temperature. (1 point) Heat Radiation Potential Chemical 2. The transfer of energy that occurs when molecules bump into one another is called _____. (1

222. ## 7th grade math

1. The area of Greenland is 840,000 square miles. What is this number in scientific notation? (1 point) 840 x 105 84 x 10–5 8.4 x 105 8.4 x 10–5 2. What answer represents this number in scientific notation? 0.00000916 (1 point) 916 x 10–8 9.16 x

223. ## math

it takes the planet Neptune about 164.8 years to revolve once around the sun. What is the least and the greatest numbers written in hundredths that could round to 164.8?

224. ## physics

Fairgoers ride a Ferris wheel with a radius of 5.50 m, the bottom of which is 1.75 m above the ground. The wheel completes one revolution every 32.0 s. If a rider accidentally drops a stuffed animal at the top of the wheel, where does it land relative to

225. ## Math

It is less than 60 and greater than 55 if you add the digits the sum is 13 what is the number

226. ## statistics

An insurance firms wants to examine the relationship between text messages per day and insurance claims. The following data is a sample of 5 participants: Cellphone Texts per day (X) Insuance Claims () (Y) 4 800 18 2600 12 2800 26 0 20 6000 Choose the

227. ## English

I writing a compare/contrast essay on movie i watched that be smke signals. i got my thematic statement done, and i have to do thesis now, this is what teacher say Thesis: introduce the story and tag it. I not get how to start thesis? do i say In the

228. ## physics

4) How many forces act on an upwardly tossed coin when it gets to the top of its path

229. ## physics (graphs)

Hi, i'm doing a graph for density of an element as a function of atomic number. i'm trying to calculate the slope and it's asking me to include units. if density as a unit: g/cm^3, how would i write the units of the slope? which is basically density over

230. ## Math

Write a 4-digit number where the value of one digit is ten times more than the value of another.

231. ## physics

A beam of protons is moving toward a target in a particle accelerator. This im trying to study for my exam by doing problems, however im stuck with this one. any help is appreciated beam constitutes a current whose value is 0.39A. (a) How many protons

260. ## Math

Wesley estimated 5.82-4.21 to be about 2. Is this an overestimate or an underestimate? Explain

261. ## Physical science

Why does pressure increase as depths increase?

262. ## Math

How do you do ratios? And whats the easiest steps i can follow that will help me do and understand ratios? please help.

asked by Pl Help me :)

tony borrowed some money from Joe. he spent $5.50 of it on lunch and half of the on a movie ticket. To repay, he borrowed$10 from art.If tony started and ended with no money, how much did he borrow from Joe

264. ## exponents

3 to the zero power

265. ## math ALG 2!

-|8X-3Y|+|2Y+5X|.....SOLVE

266. ## chemistry

Use demensional analysis to convert 4.68 grams of boron to cubic centimeters of boron. The density of boron is 2.34 grams per centimeters cubed

267. ## grade12 bio

Some genes are said to be “linked”. Explain this term and the implications it has as to the inheritance of certain traits. Provide 2 (human) examples of linked genes?

268. ## physics

a baseball is thrown at an angle of 24 degrees relative to the ground at a speed of 23.4m/s. the ball is caught 41.4798m from the thrower. how long is it in the air?

269. ## history

during the colonial 1580-1776 which physical feature presented the greatest obstacle to colo nists who wanted to move westward

270. ## English

In the story "By the waters of Babylon" what are 9 archetypes in the story. Give examples from the story

271. ## Physical science

What happens to a ballon as it rises up into the atmosphere? A) increases in volume B) decreases in volume C) the outside atmosphere really makes no differences to the balloons volume

272. ## physics

a cat chases a mouse across a 1.6m high table. the mouse steps out of the way and the cat slides off the table and strikes the floor 2.0m from the edge of the table. what was the cat's speed when it slid off the table?

273. ## Biology

Some genes are said to be “linked”. Explain this term and the implications it has as to the inheritance of certain traits. Provide 2 (human) examples of linked genes? PLEASE HELP ITS A REQUEST

274. ## homework help

which temperature is colder? a) 50F b) 50C

275. ## physics

a pelican flying a horizontal path drops a fish from a height of 5.0m. the fish travels 8.1m horizontaly before it hits the water below. what was the pelicans initial speed?

276. ## homework help

which of the following are in the correct size order? a) nm, um, cm, mm, m b) m,um,cm, nm, mm c) um,nm,mm,cm,m d) nm,um,mm,cm,m e) none of the above

277. ## Order of Operations

As you simplify each expression below, which one requires finding the quotient of 80 divided by 2 A.4+6x8/2 B.2x5x8/2 C.(2+5)x8/2 D.4+(6x8)/2 B?

278. ## College Physics

Vector subtraction (F1 - F2) is a special case of vector addition, since F1- F2 = F1 + (-F2). Use the data (magnitude and direction) of F1 and F2 obtained in measurement 1 to find out the magnitude and direction of the resultant vector of F1 - F2. The data

279. ## chemistry

whats an example of hydrogen bonding?

280. ## AP Chemistry

A 34.05 gram liquid sample of an unstable compound is deposited in a metal piston assembly that has a cylinder with a diameter of 20.0 cm. After the sample is added, the piston is placed in contact with the liquid and the piston vent is closed. This

281. ## chemistry

a buffer is a substance which? a) accepts OH- in basic solution b) accepts H+ in acid solutions

What happens to the particles inside the balloon?do the... A) increase in speed B) decrease in speed C) the particles increase in size D) the particles decrease in size E) increase in number F) decrease in number G) something else happens like_____________

Sorry I am completly lost on this one and it is my last homework problem. Due in a couple of hours if someone could help. I would greatly appreciate it. A block is placed on an inclined plane. The acceleration of gravity is 9.8 m/s^2. What force is

284. ## chemistry

order Se, S, As, by increasing atomic radius? explain why?

285. ## Physics

Sorry I am completly lost on this one and it is my last homework problem. Due in a couple of hours if someone could help. I would greatly appreciate it. A block is placed on an inclined plane. The acceleration of gravity is 9.8 m/s^2. What force is

286. ## Ella Minnow Pea

I read the book Ella Minnow Pea for school... And I actually enjoyed it! But I have to answer some questions about it and I'm not quite sure what I am suppose to be answering. Do you understand these questions better than me? Here they are! Identify the

287. ## Math

What is the independent and dependent variable in the situation. And what is the rate of change for the situation? Hannah delivered 12 newspapers after 20 minutes and 36 papers after 60 minutes

288. ## Chemistry

how would you prepare 500 ml of .2M solution starting with solid NaH2PO4*H20?

289. ## math ALG 2!

7F-9>3F-1 SOLVE

290. ## ALG 2

|X-8|is greater than but equal to 3...solve

291. ## Calculus

a property owner wants to build a rectangular enclosure around some land that is next to the lot of a neighbor who is willing to pay for half the fence that actually divides the two lots. If the area is A, what should the dimensions of the enclosure be so

292. ## Psychology

According to Erikson the first psychosocial crisis or conflict in life involves the:

293. ## College algebra

Find the maximum value of: y=-3x^2 -15x +1

294. ## Chemistry

What is the pH of a 0.50 M solution of NaNO2 if the Ka of H20x = 4.5 x 10^-4. I know that you use the Ka to find Kb and solve from there, but why?

295. ## public finance

If the current interest rate is 5% for a 30-year mortgage loan, what is the maximum amount one can borrow for a house?

296. ## English

Which one does not belong o? On April. December. November. June