# Questions Asked onSeptember 28, 2010

1. ## Calabasas HS

A 46.2-mL, 0.568 M calcium nitrate [Ca(NO3)2] solution is mixed with 80.5 mL of1.396 M calcium nitrate solution. calculate the concentration of the final solution

30. ## Chemistry (again)

What mass of NaOH is required to precipitate all the Fe2+ ions from 52.0 mL of 0.200 M Fe(NO3)2 solution?

Sam Squeeze has 10 quarts of a drink that is 60% organge juice. how much pure orange juice must he add to get a drink that is 75% orange juice?

32. ## probability

The letters of the word Mississippi are placed in a hat. What is the probability that the first two letters drawn are both i if the first letter drawn is not replaced?

33. ## critical thinking

A company can either invest in employee training seminars or update its computer network. Since updating the computer network would result in more measurable benefits, the company would be best off updating its computer network. The argument above assumes

34. ## Physics

An electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic field B. Find the ratio of the radii of their circular orbits when the electron and the proton have the same momentum. Find the ratio of the radii of their

35. ## physics

During an Olympic bobsled run, the Jamaican team makes a turn of radius 7.9 m at a speed of 97.4 km/h. What is their accelaration in g-units?

36. ## Chem

4NH3(g) + 3O2(g) -> 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of ammonia?

37. ## high school

How does a scientist reduce the frequency of human error and minimize a lack of accuracy? a.Take repeated measurements. b.Use the same method of measurement. c.Maintain instruments in good working order. d.all of the above

38. ## GEOMETRY

Overlapping angles Given: m angle HGK= m angle JGL Prove: m

39. ## Chem

4NH3(g) + 3O2(g) -> 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of ammonia?

sound travels at 350 m/s in warm air. "If you hear the echo in 10 seconds, how far away is the reflecting surface?

41. ## Organic chemistry

the pka of benzoic acid is 4.2. show mathematically that this acid is 50% ionized. Use results of part a t oexplain why precipitation is incomplete if the pH of an aquesous solution of benzoate ion is lowered only to ph 7 by adding acid. Thank you

42. ## physics

The coefficient of kinetic friction for a 25 -kg bobsled on a track is 0.10.What force is required to push it down a 6.0^\circ incline and achieve a speed of 67 km/h at the end of 75 {\rm m}?

43. ## Vectors

Given vectors A = -4.8i + 6.8j and B = 9.6i + 6.7j, determine the vector C that lies in the xy plane perpendicular to B and whose dot product with A is 20.0.

44. ## physics

A person walks in the following pattern: 2.9 km north, then 1.9 km west, and finally 8.0 km south. How far and in what direction would a bird fly in a straight line from the same starting point to the same final point?

45. ## Chemistry

Calculate the molarity of a solution made by dissolving 0.0715 mol Na2SO4 in enough water to form 550 mL of solution. While we're at it... How many milliliters of 10.6 M HCl solution are needed to obtain 0.205 mol of HCl? Also... How many grams of solute

46. ## physics help

A woman is pushing a sofa at constant speed of 1.0 m/s on a horizontal surface. She exerts a horizontal force of 80 N in the direction of motion. A) how can the sofa move at constant speed without Newton's first law being violated? B)Approximately how hard

47. ## Chem

4NH3(g) + 3O2(g) -> 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of ammonia?

49. ## Geometry

Overlapping angles Given: m angle HGK= m angle JGL Prove: m angle 1= m angle 3 Statements: Reasons: 1.) m angle HGK= m angle JGL 1.) Given 2.) 2.) 3.) 3.) 4.) 4.) Can you please help me complete the proof? Thanks for your help!

Which measure would a long-term creditor be least interested in reviewing? a.free cash flow b.debt to total assets ratio c.current ratio d.solvency measure

51. ## government

True or False. As a result of the war, the South's economy boomed, while the economy of the North slumped.

52. ## physics

a traffic light is supported by two cables that are 140 degres apart. Each cable exerts a tensile force of 150 N on the night. How mucg does the light weigh?

53. ## Physics

Estimate the work you do to mow a lawn 14m by 23m with a 0.5m-wide mower. Assume you push with a force of about 15N.

54. ## chemistry

What is the net ionic equation for calcuim ion and ammonium oxalate?

55. ## geometry

In similar triangles ABC and DEF, corresponding sides AB and DE equal 15 and 12, respectively. If the perimeter of triangle ABC=40, what is the perimeter of triangle DEF

56. ## college physics

A man pushing a mop across a floor causes it to undergo two displacements. The first has a magnitude of 140 cm and makes an angle of 130° with the positive x axis. The resultant displacement has a magnitude of 144 cm and is directed at an angle of 30.0°

57. ## home economics

three branches of home economics?

58. ## Math

Please show me a step-by-step of square root of 2209 without using calculator or just say square root of 2209?

59. ## science, density

The density of sea water is slightly higher than that of fresh water. The higher density is due to the fact that sea water contains salts such as sodium chloride and magnesium chloride. Suppose you have a container that holds 5.00 kg of fresh water, which

Can someone please help me with this question? Write one analogy about "taking an online course" that would be a valid comparison and help someone understand your experience. Write another analogy that would be an invalid comparison (the comparison would

draw a number line. make sure the following numbers are on the line: 1,472; 1,560, 1,481

62. ## Maath

Find an equation of the line L in point slope form and in general form. L is parallel to the line 3x-2y+5=0 and contains (2,3)

63. ## Teachers Aide/Early Childhood Education and After-

16. When planning activities for an after-school day care program, the teacher aide should provide A. drill and thinking activities that carry over from the school curriculum. B. activities that are highly structured and demanding. C. a choice of

64. ## spanish

use the info given to say who each person is and where each person is from ustedes/ los senores Tobar/ Panama

65. ## grammar

what is the simple predicate in The insects bodies can turn wood into food?

66. ## Statistics

Instructions for Data Sets: Choose one of the data sets A − J below or as assigned by your instructor. Only the first 10 observations are shown for each data set (files are on the CD). In each data set, the dependent variable (response) is the first

67. ## Physics

In the javelin throw at a track and field event, the javelin is launched at a speed of 25 m/s at an angle of 30.7° above the horizontal. As the javelin travels upward, its velocity points above the horizontal at an angle that decreases as time passes. How

68. ## chemistry

The oxidation numbers for each element in the compound Ag2SO3 are: (Enter numbers ONLY in the format +1 or -1; no spaces.) Ag S O for Ag i got +4 for S i got -2 and same for O The oxidation numbers for each element in the compound NaClO4 are: (Enter

69. ## chemistry

If a mole of hydrogen gas (H2) contains 6.02 x 10^23 molecules, how many molecules are there in 10.0 moles of hydrogen gas? Answer 60.20 x 10^23 molecules 6.0 x 10^23 molecules 6.02 x 10^20 molecules 6.02 x 10^24 molecules None of these is correct. would

70. ## biochemistry

Calculate the pH change of 10mL of HCl added to 1M phosphate buffer in 1L with initil pH of 7.2?

Sam Squeeze has 10 quarts of a drink that is 60% organge juice. how much pure orange juice must he add to get a drink that is 75% orange juice?

72. ## Teachers Aide/Early Childhood Education and After-

Here are my answers thus far....Number 20 has not been answered. 1.b 2.c 3.b 4.d 5.a 6.b 7.c 8.b 9.a 10.c 11.b 12.b 13.c 14.a 15.d 16.c 17.b 18.c 19.b 20.? 1. Which type of after-school game is usually most successful with younger children? A. Highly

73. ## English 2

I have to write a cause and effect essay, and I'm writing about the cause for the popularity of fast food restaurants and the effect its had on people. I have plenty of causes listed, but for the effect I only have 2- Obesity, and jobs for people without

74. ## math

make an array for the number sentence?4*8=32

75. ## geometry

M is the midpoint of Symbol for Segment A B.. Find the coordinates of B given A(7,-2) and M(10,10). Show your work for credit

76. ## math

at 1p.m. two trains, traveling towards each other, leave from towns that are 312 km apart. one train averages at most 82 km/h and the other at most 74 km/h. what is the earliest time for them to meet?

77. ## cpcc

A 134 N bird feeder is supported by three cables as shown in Figure P4.17. Find the tension in each cable. right cable 1 N left cable 2 Your response differs from the correct answer by more than 10%. Double check your calculations. N

78. ## physics

a very strong girl runs 200 miles for several hours. After a brief rest she runs another 100 miles north. She stops for the night at a local bed and breakfast and the next morning ealks 75 miles directly south-east. Find the magnitude and direction of her

79. ## Science

what does biotic and abiotic mean.

80. ## MATH 9 th grade

The difference of 22 and the quotient of a number m and 4 is 54 ?

81. ## math

The diameters of a wooden dowel produced by a new machine are normally distributed with a mean of 0.55 inches and a standard deviation of 0.01 inches. What percent of the dowels will have a diameter less than 0.57?

82. ## MATH

calculate missing dimension. a) cylinder has volume 1m3 and height of 0.6m. How do I fifure the missing dimension. Could someone please provide me with a formula to figure this out. Also can someone please explain to me step by step how to do this. Cause

83. ## physics

The flywheel of a steam engine runs with a constant angular speed of 164 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 1.6 h. I found the constant angular acceleration as 1.71rev/min^2. They also ask

84. ## Teachers Aide/Early Childhood Education and After-

8. When resolving conflicts between students in an after-school program, the teacher aide should A. give attention to the aggressor first. B. let children discuss their differences with each other. C. never use a “time-out” corner. D. separate and

85. ## physics

(a) Vector E has magnitude 50.0 and is directed 40.0° counterclockwise from the +x axis. Express it in unit-vector notation. (b) Vector F has magnitude 50.0 and is directed 40.0° counterclockwise from the +y axis. Express it in unit-vector notation. (c)

86. ## Teachers Aide/Early Childhood Education and After-

11. The most common early childhood program in the United States is A. the eclectic model. C. DISTAR. B. the Montessori model. D. the Froebelian model. I have no idea. There is really only a few sentences that would lead me to believe that the Froebelian

87. ## Chemistry

Please reply as soon as possible, I really need the answer urgently. How many grams of NaOH are required to completely neutralize 100ml of 1M solution of H2SO4?

88. ## GEOMETRY

Reflective sets of angles Given:

89. ## physics

what is the shortest possible time in which a bacterium could travel a distanceof 8.4 cm across a petri dish at a constant speed of 3.5 mm/s

90. ## physics

What is the smallest radius of an unbanked (flat) track around which a bicyclist can travel if her speed is 31 km/h and the coefficient of static friction between the tires and the road is 0.29?

91. ## Physics

a girl jumps off a high diving platform with a horizontal velocity of 2.77m/s and lands in the water 1.2s later the acceleration of gravity is 9.8m/s squared how high is the platform and how far from the base of the platform does she land?

92. ## Science

If you drive 20 laps around a circular race track at 100 m/s what do you know about your speed, velocity and acceleration?

93. ## physics

A constant force is applied to an object, causing the object to accelerate at 6.00 m/s^2. What will the acceleration be if: a.The force and the object's mass are both doubled? b.The force is doubled and the object's mass is halved?

94. ## Medical Terminology

Hello. Please,if someone can help me answer all these questions. I have few answers and i would like to compare it to my own answers thanks. 1. Dr. Hannah places a stethoscope to a seven-year-old child’s chest. The lungs reveal basilar rales. Which

95. ## Chemistry

I need help on this stoichiometry problem. I don't know whay my answer is incorrect. The fermentation of sugar to produce ethyl alcohol occurs by the following reaction: C6H12O6 -- 2C2H5OH + 2CO2 What mass of ethyl alcohol can be made from 1.00 kg of

96. ## chemistry

1.why is potassium permanganate used in the process of distillation of water?

97. ## math

We deposited 7,500 dollars into a savings account which pays 3.6 percent annual interest, compound quarterly.How long after the money is deposited will the account balance be 9,750 dollars?What initial deposit will generate a balance of 12000 dollars in

98. ## Spanish

I need help with these last 2 1.Mis amigos y yo * (asistir) a la universidad. 2. Yo (creer) en Dios y * (asistir) a la misa (Mass) con mis padres los domingos. I just need help with asistir on this part.

In F. Scott Fitzgerald's story "Bernice Bobs Her Hair," we are very likely to A. see Marjorie's personality as shallow. B. think of both Marjorie and Bernice as painfully naïve. C. realize that Marjorie is sensitive to Bernice's feelings. D. decide that

100. ## physics

The flywheel of a steam engine runs with a constant angular speed of 164 rev/min. When steam is shut off, the friction of the bearings and the air brings the wheel to rest in 1.6 h. I figured out the constant angular acceleration=1.71 rev/min2 but im not

101. ## Science

What is an individual organism, population, community, and an ecosystem? Please answer! Thanks! -Pancake o.o

asked by The Official Pancake Queen
102. ## physics

Two masses of 2kg,4kg and 6kg are placed at 4 corner of a square of side 1 metre find gravitational field intensity gravitational at centre.

103. ## MATHS

a parabola passes through the points (1,1) , (2,0) and (3,1) the equation of the parabola is y=ax^2 + bx + c a) write down a system of equations representing this parabola. b) solve the corresponding system and hence write down the equation of the parabola

104. ## 8th history

A direct result of the three-fifths compromise was: the political power of the South was greatly increased since they were apportioned more representatives. *northerners paid more taxes than southerners. three-fifths of the population in the South was

What is the sum of 3142,6328, and 4743 to the nearest thousand?

106. ## math

I am A number in the Last row on the hundreds chart. my ones digit is even.the differance between the ones digit and tens digit is 5.What number am i?

107. ## Finance

"An investor is proposing to buy shares in XYZ company. XYZ company is expected to an annual dividend of $2.50 per share. The current share price is$50.00. If the investor requires an annual rate of return of10%, what must the share price be in 1 yr?.

108. ## Physics (Projectile Motion)

Please reply to this one urgently: Horizontally moving plane at 600kmph speed, at a height of 1960km, drops a package at point A and it drop at point B. Find the distance between A and B.

109. ## spanish

someone translate please Como son la mujer y las dos mudchachas del cuadro? Quien es la mujer, y que relacion hay entre ella y las ninas? Escrbibe una descripcion de las tres personas

Please please I need help with this question. thanks For 2010, Fielder Corporation reported net income of $30,000; net sales$400,000; and average share outstanding 6,000. There were no preferred stock dividends. What was the 2010 earnings per share?

111. ## physics

If the mass of a planet is 3.80 1024 kg, and its radius is 2.20 106 m, what is the magnitude of the gravitational field, g, on the planet's surface?

112. ## Biology

The tropical rain forests that are being cleared to grow crops for biofuels normally trap _____ carbon dioxide than the crops do. A. more B. less C. the same amount of Thank You.

113. ## Math

You are a share analyst for an investment firm and are investigating the return on shares in the Eastern Mining Corporation over the last four years. The return on Eastern Mining Corporation shares over the last four years is presented. Calculate the

114. ## Physics

A person doing a chin-up weighs 615.4 N, disregarding the weight of the arms. During the ﬁrst 21.0 cm of the lift, each arm exerts an upward force of 435 N on the torso. The acceleration of gravity if 9.81 m/s 2 . If the upward movement starts from rest,

115. ## Algbebra 2

How would I put this word problem into a system of equations (three equations)? Once its in equation form I can easily solve it... A natural food store makes its own brand of trail mix out of dried apples, raisins, and peanuts. One pound of the mixture

116. ## spanish

can someone look up the painting Mis sobrinas de Maria Izquierdo (1902-1955) and tell me about it

117. ## US History

I reallyyy need help with this one question please--- 2. What evidence in the Declaration of Independence is there of religious faith? How does this religious faith influence the ideals expressed in the Declaration? I see some mentioning of religious faith

118. ## physics

Block B weighs 708 N. The coefficient of static friction between block and table is 0.32. Assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary.

119. ## english

I wrote five sentences but they all have to have different verb tense. Can u let me know if right are let me know what I need work on. 1.This class made me look at my financial future. Look is verb and its in present tense, 2. Financial planning is a class

120. ## PHYSICS!!!!! HELP!

The velocity of a diver just before hitting the water is -8.6 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.86 s of the dive? im so stuck. i tried this problem several times, and my

121. ## Chemistry

If the decomposition of 3.785 g iron (III) chloride yields 1.302 g iron and 2.483 g chlorine, how many grams of iron and chlorine are produced when 2.175 g iron (III) chloride decomposes?

122. ## chemistry

How did dalton discover the atom?

123. ## English

Who is the speaker in Journey by Mary Oliver.Is it your conscious directing you, telling you what you must do?

124. ## Geometry

Reflective sets of angles Given:

170. ## Maths

An atom of chlorine has 6 more protons than an atom of sodium. The atomic number of chlorine is 5 less than twice the atomic number of sodium. How many protons in atom of chlorine?.

171. ## Math

Determine the zeros of the function 3x^2 -8=10x. I know I rewrite it as 3x^2 -10x-8 = 0 But then what do I do-I'm totally confused-Answers are {-2,4} {2,4} {-2/3,4} {2/3,4} Please direct me or show the steps, just don't give me the answer because I still

172. ## Earthquakes

What determines the magnitude of an earthquake? I know that two plates slide against one another and that creates friction and the potential energy turns into kinetic energy in the form of an earthquake. But how is the magnitude determined? Im thinking the

173. ## algebra

how can i solve this equation: (a-b)(2a-b)(a+2b) can anyone be so kind to help me with it? p.s. I'm barely learning how to multiply polynomials.

174. ## math word problem

Andy and William work together to build a toy house. It will take William 5 hours and Andy 4 hours, or William 10 hours and Andy 2 hours to finish their work. If William works alone, how many hours will it take to finish his work? 5 10 15 20 Explain how

175. ## Economics

How can you use information about the business cycle when making a decision about a large purchase?

176. ## history

The Dredd Scott decision: *declared that Congress could not prohibit slavery from a territory *struck down the Kansas-Nebraska Act *stated that a slave was property and could never be a citizen *allowed slavery in every state in the Union

177. ## English

How do you fix this pronoun agreement. The first theme that the author demonstrates is to not let people with a disability feel abnormal, but for them to use the abilities that they have to help them build their self-confidence.

178. ## health

A specialist who diagnoes, treats, and prevents disorders and diseases of children is a/an?

179. ## French

Can you check these thanks Part 1: Choisissez 1. Il a eu un accident et on a appelé ----------. A. un anesthésiste B. le serivce des urgences C. un fauteuil roulant Answer: B 2. On a mis le blessé sur -------. A. son genou B. un pansement C. des

180. ## calculus

Find the point on the curve y=1 x2+14 x such that the tangent line to the curve is parallel to 2 x + 10 y = 23

181. ## algebra 2

how do u solve a system of linear equations in three variables? for example this problem Ex.1 2x-2y+z=3 5y-z=-31 x+3y+2z=-21

182. ## Science

An astronuat who was outside repairing his spaceship with a wrench lost his tie rope. Now he is stranded in space. Unfortunately, you can't swim in space. How can the law of conservation of momentum help the astronaut return to his ship.

183. ## science

Why do you think that the Scientific Method is so important when we talk about the development of Psychology as a science?

184. ## MATH

1 6x+7=25;3 2 22-5c=8;3 3 b\4-7=1;36 4 7a+4_>20;2.7 ps. the arrow is suppose to be on top of the line. 5 4y-3.12;4 6 m\3+14

185. ## math word problems

On three consecutive passes a football team gains 10 yards, lose 36 yards and gain 41 yards. What is the total net yards. i truely don't understand

186. ## Physics

"You throw a rock at 25m/s at an angle of 25.8511 degrees hitting a target 50m away on the ground in 2.22s." (this is on a flat surface) Vi=25m/s Theta=25.8511 degrees x=50m t=2.22s and of course g=9.81m/(s^2) "How high does the rock fly in the air?" I

187. ## MATH

The sum of 14 and twice a number y is equal to 78 ?

225. ## Alg. II

Solve y=Arcsin 1/2 A.) -5pi/6 B.) 5pi/6 C.) -pi/6 D.) pi/6

226. ## world history

When did the babylonians conqure mesopotamia?

I am 45 years older than my son. Now the two digits in my age both prime are the reverse of the two in my son's age. How old am I

228. ## Algebra 2

When you solve t(t+1)(t-2)=0, is the solution {0, -1, -2}?

229. ## calculas

Find the equations for the tangent line and normal line to the curve for f(x)=(x^4)+(2e^x) at the point (0,2)?

230. ## Algebra 2

Is this how you solve t^3 - t = 0? t(t^2-1)=0 t(t-1)(t-1)=0 t=0 or t=1 {0,1}

231. ## math

2*2*2*2 Evaluate expression.

232. ## history/english question?

would it make sense to say: (i am writing a report on rousseau's belief in the social contract) "....in which people come to accept the rules of society and agree to follow and pertain to them." ?? thanks, and feedback on making this sentence better? i'm

233. ## physics

If the green ball bounces upward from the ground with a speed of 20 m/s (immediately after it hit the ground), calculate the momentum of the ball as it goes upward immediately after hitting the ground

234. ## child care

Mrs. Carroll and her sister want to keep their taxes low and keep Ms. Howard's liability to the amount of her original investment. Which type of business arrangement would be best for them

235. ## finite math

Candy costing 1.25 per kilogram was mixed with candy costing 1.65 per kilogram to produce 10 kilograms of a candy mixture worth 1.40 per kilogram. find how may kilograms of each was used.

236. ## Organic Chem

how would you make 300mL of toluene and hexane in a artion of 70:30 respectively? i don't un derstand please help

237. ## HRM

Background CariSecur, a regional organization that has as it core business the provision of security services in CARICOM member states, is seeking to employ a Regional Information and Technology Coordinator. The position, which is new in the organizational

238. ## calculus

11,406.14=(438.3/r)(1+r)^10 how do you solve for r?

239. ## english

Is this sentence correct? Taking care of this patient will be more exhausted than other patients because I have to provide intensive cares, such as giving a bed bath and turning the patient, and more attention to the patient’s safety

240. ## economics

name two competitor companies that are U.S. GAAP publicly traded companies

241. ## college physics

Consider two vectors A = 4i - 4j and B = -i - 8j . (a) Calculate A + B. (b) Calculate A - B. (c) Calculate absolute value(A + B). (d) Calculate absolute value(A - B). (e) What is the direction of A + B? (from the +x axis) (f) What is the direction of A -

if f(x)= (x-4)(x=3) determine the x intercept of the funtion if y= -2f(x)... i just don't know if the -2 affects the answer because that only affects the y co ordinates. in the book it says 4,-3 but i don't know why. if this is true if the they were asking

243. ## algebra

evaluate the exprression 90/x for the given values of x to complete the table x 2 3 5 9 15 18 20

244. ## english

Does this sentence make sense? They will be my new patients whom I never had a chance to care for since I volunteered at hospital.

245. ## math

the sum of 7 and three a number b is at least 12 ?

247. ## Physics

Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!

what does the word stoically mean in the book Iron and Silk by Mark Salzman

249. ## calculus

for the function f(x)=4x^2 +7, find the equation of the tangent line to the graph of f at x+1. if the equation of the tangent line is written as y=mx+b. m=? b=?

250. ## geography

Explain the three steps that geographers yse

251. ## calculus

consider the function f(x)=2x^2 +1. its tangent line at x=2 goes through the points (2,y1) and (-1,y2) where y1=?, y2=?

252. ## math

If you had a fraction strip folded into 10ths what fractional lengths could you measure with the strip

253. ## healt

what are the four categories of physical fitness

254. ## physics

A model is 14.5 kg and it is supported by four identical springs. Each spring can oscillate with a frequency of 3Hz. What is the value of the spring constant?

255. ## math

There are 40 yellow and blue marbles in a bag. There are 4 times as many blue marbles as yellow marbles. how many yellow marbles are there? how many blue marbles are there?

256. ## PHYSICS

Can someone please tell me how to calculate the percent of error for a set of data points? thanks so much!

278. ## World History

describe the spread of sedentary agriculture outside the older civilized areas

279. ## managment

how is knowledge captured and used in your organization? I am not sure what this qestion is asking. Help please

280. ## Physics

A car brakes from 18 m/s to 6.0m/s in 3.0 seconds. How far did it travel in this time? I got 36 m...

281. ## Calc

Find f'(a). f(x)= (x^2 + 1)/(x - 2) So, [[(a + h)^2 + 1]/[(a + h) - 2]] - [(a^2 + 1)/a - 2] and the whole thing divided by h I tried simplifying it and ended up with [a + h/-2] - (a-2), which is incorrect. I used wolfram alpha and got (a^2 - 4a - 1)/(a -

282. ## Math

34 x (n x 2) = 680

what is science

284. ## Physics

"You throw a rock at 25m/s at an angle of 25.8511 degrees hitting a target 50m away on the ground in 2.22s." (this is on a flat surface) Vi=25m/s Theta=25.8511 degrees x=50m t=2.22s and of course g=9.81m/(s^2) "How high does the rock fly in the air?" I

285. ## English

Can you please check the following sentences for me? Thank you in advance. 1)They made a hole in the bottom of the boat on the beach. When the other sailors arrived at the beach by boat, they decided to leave three men in the boat whereas the other seven

286. ## algebra

use the intercepts to graph the equation x+2y=4

287. ## Math

What is a step by step answer to (17+x)^2=2209 ?

288. ## chemistry

how much wood makes 5 pounds of ash

289. ## math

tell wich operation to do first then find the value of each expression

290. ## literature

what is pastoral literature?

291. ## English

can anyone answer these questions? How do people choose what to buy? what are presents for and what do they express?

292. ## math

data set of numbers with mode 7, median 12, range 13, and maxium 18

293. ## math

Which of the following is a disjunction? Angela is forty-three. Lisa will run a marathon and Lisa will compete in a triathlon. Paul is at school or Paul is at home. A spuare has four sides and four angles.

294. ## English I

What is feild or Scope? I am writing a book report on Lord of the Fies by William Golding.

295. ## English

Help needed! It's due tomorrow please. Thanks. I have to do imitation. 1) A veteran bronc rider, Tom Block has ridden nine horses to death in the rodeo areno,and at every performance the spectators expect him to kill another one. This is the imitation:

1/5X24

297. ## social studies

how can I describe effects of glacier

if f(x)= (x-4)(x=3) determine the x intercept of the funtion if y= -2f(x)... i just don't know if the -2 affects the answer because that only affects the y co ordinates. in the book it says 4,-3 but i don't know why. if this is true if the they were asking

299. ## english

For this sentence, Regardless of which patients whom I will get for my first clinical day, should I use will because I am talking about the future?

6r-3=15

2(5/6a-3/8)

302. ## trig

25q to the second power -81=0

303. ## math

40=y+4y

describe effects of glacier

305. ## physic

how to caluate a ke vs. time graph

306. ## math

how is it possible for a triangle to have angles of 90, 50 &60