# Questions Asked onNovember 4, 2009

1. ## Chemistry: Electron Configurations

Write the electron configuration for the following ion. V3+ I got 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2. In simplified form, I got [Ar]4s^2. I checked my answer against the answer given in the back of my chemistry textbook, and the two didn't correspond. The

2. ## physics

A 3.00 kg ball is dropped from the roof of a building 176.4 m high. While the ball is falling to Earth, a horizontal wind exerts a constant force of 12.0 N on it. a.)How far from the building does the ball hit the ground? b.)How long does it take to hit

3. ## college physics

A small mass m slides without friction along the looped apparatus shown in Fig. 6-39. If the object is to remain on the track, even at the top of the circle (whose radius is r), from what minimum height h must it be released? (Answer in terms of r.)

4. ## Physics

Although it can't sustain its top speed for more than 8.65 sec, the cheetah can run a distance of 274 m during that time. If a cheetah with a mass of 50.0 kg is moving north at its top speed. what is its momentum?

5. ## Physics

fully loaded, slow-moving freight elevator has a cab with a total mass of 1250 kg, which is required to travel upward 58 m in 3.4 min, starting and ending at rest. The elevator's counterweight has a mass of only 1005 kg, and so the elevator motor must

6. ## Physics

we must apply a force of magnitude 82.0 N to hold the block stationary at x=-2.0 cm. From that position, we then slowly move the block so that our force does +8.0 J of work on the spring–block system; the block is then again stationary. What are the

7. ## Math

In chess, a knight can move either two squares horizontally plus one vertically or two squares vertically plus one horizontall. a) If a knight starts from one corner of a standard 8*8 chessboard, how many different squares could it reach after i) one move?

8. ## Algebra 2

. A coffee merchant has two types of coffee beans, one selling for \$3 per pound and the other for \$6 per pound. The beans are to be mixed to provide 100 lb of a mixture selling for \$4.98 per pound. How much of each type of coffee bean should be used to

9. ## Honors Chemistry (stoichiometry)

Can someone check and make sure I'm doing these problems right? Thanks so much!! 1. N2 + 3H2 ==> 2NH3 : How many moles of hydrogen are needed to completely react with two moles of nitrogen? ==> I got 6 moles. 3. Zn + 2HCl ==> ZnCl2 + H2 : How many moles of

10. ## To: Economyst

Hi there. You helped me with a couple of questions regarding Econ. I appreciate the help but my issue is I don't understand how you calculate the minimum average variable cost or the output that maximizes profit. I do understand that the price is more than

11. ## Trig

Find the area of the triangle. b=125 c=162

12. ## physical science 8th grade

Copper has 2 known isotopes: ^63CU atomic mass= 62.9298 and ^65 CU atomic mass=64.9278. The average atomic mass of copper is 63.546 amu. Calculate the fraction(percent) of each of the 2 isotopes of copper

13. ## math

A hammer thrower releases the hammer after reaching an angular velocity of 14.9 rad/s. If the hammer is 1.6m from the shoulder joint, what is the linear velocity at release?

14. ## Spring Physics

A 2.0 kg box rests on a plank that is inclined at an angle of 65° above the horizontal. The upper end of the box is attached to a spring with a force constant of 19 N/m, as shown in Figure 6-32. If the coefficient of static friction between the box and

15. ## math

A cyclist completes 3.2 cycle revolutions in 1.4s. What is the angular velocity in radians per second?

16. ## Physics

A 3.0 kg breadbox on a frictionless incline of angle ¥è = 42 ¢ª is connected, by a cord that runs over a pulley, to a light spring of spring constant k = 110 N/m, as shown in the figure. The box is released from rest when the spring is unstretched.

17. ## Physics

Why is it that when water is in a bucket and spinning around in a circular motion and then upside down the water in the bucket does not move or spill? Am not sure on what terms to use to explain why this happens

18. ## science

For a machine with an efficiency of 80%, what is the work output of the machine if its work input is 2,000 joules? would i divide 2000/.80? which gives me 2500?

19. ## physics

If a car is accelerating downhill under a net force of 3674 N, what force must the brakes exert to cause the car to have a constant velocity?

20. ## chemisrty

how can you calculate the net charge of an ion if you know the number of protons, neutrons, and electrons it contains?

21. ## Physics

If a discus thrower rotates through the last 45 degrees of a turn in .11 seconds and the distance from the axis of the rotation to the center of the discus is 1.22 m, what is the average linear velocity of the discus?

22. ## physics

A grinding wheel in the shape of a solid disk is 0.200 m in diameter and has a mass of 3.00 kg. The wheel is rotating at 2200 rpm about an axis through its center. (a) what is its kinetic energy? (b) How far would it have to drop in free fall to acquire

23. ## physics

a golf club 1.01 m long completes a downswing in .25s through a range of 180 degrees. Assume a uniform (constant) angular velolcity. What is the linear distance moved by the end of the club?

24. ## American Government

What influences might cause a member of the House to vote against the wishes of the people in his or her district? I have this question for a study question in government and I'm pretty lost. The only things I can think of are money issues or because they

25. ## English

1. I don't cook yet. 2. I haven't cooked yet. 3. I don't read Harry Potter yet. 4. I haven't read Harry Potter yet. (If both #1 and #2 are correct, Aren't both #3 and #4 correct?)

26. ## SAT essay

Should people change their decisions when circumstances change, or is it best for them to stick with their original decisions? Environments, including the people around us, the values of society and the opinions of the majority, always exert influence on

27. ## physics

If a car is traveling westward with a constant velocity of 20 m/s, what is the net external force acting on it?

28. ## Genetics

Given the sequence of bases in the sense strand of DNA shown below, please answer the following questions. 5'-ATGTTTCCCCAGAAGAGGTATGGGAAAAAGATTTGA-3' a. Show the sequence of bases in the messenger RNA encoded by this gene. I'm not sure what this means. I

A farmer grows 196 pounds of potatoes.He sells them to a grocery who divides them into 5 pound and 2 pound bags.If the grocery uses the same number of 5 pound and 2 pound bags,how many bags of each did he use?

need help with edhelperku puzzle

31. ## algebra 2

A manufacturer produces a standard model and a deluxe model of a 13-in. television set. The standard requires 20 h of labor to produce, whereas the deluxe model requires 25 h. The labor available is limited to 300 h per week. In addition, the plant

Determine the x and y components if a dog walks to the park that is 24m, 30 degrees northwest. Please help i don't know how to go about solving this problem

Prove that 2sinxsiny = cos(x-y) - cos(x+y) Prove that sin2x + sin2y = 2sin(x+y)cos(x-y)

34. ## math

Chad was the same age as Shelly, and Holly was 4 years older than both of them. Chad's dad was 20 when Chad was born, and the average age of the four of them is 39. How old is Chad?

35. ## AP Physics

Hi, I have the follwoing physics question to ask, Plesae help with hints. "Two people are standing on a 2.5-m-long platform, one at each end. The platform floats parallel to the ground on a cushion of air, like a hovercraft. One person throws a 5.9-kg ball

36. ## kinematics

a golf club 1.01 m long completes a downswing in .25s through a range of 180Degres. Assume a uniform (constant) angular velocity. What is the tangential velocity of the end of the club? What is the tangential accelration of the end of the club?

37. ## world history

The thirteen stripes on this United States flag represent the number of A- original colonies B- revolutionary war battles C- president of the United States D- states in the Union

38. ## history

A study of the causes of the American Revolution of 1776, the French Revolution of 1789, and the Russian Revolution of 1917 best supports the generalization that revolution is most likely to occur when

39. ## science

A truck is stopped at a stoplight. When the light turns green, the truck accelerates at 2.2 m/s2. At the same instant, a car passes the truck going 12 m/s. Where and when does the truck catch up with the car?

40. ## us history

What are groups of colonist formed to get ready for war called?

41. ## math

Two numbers are reciprocals of each other. One number is 9 times as large as the other. Find the two numbers.

42. ## Civics

What legislative policy making role is a governor expected to fill? Would it be that the governor attends political-party dinners, speaks at party functions, and may campaign for party candidates in local elections.

Mary makes mugs.She makes 2 sizes of mugs:a small mug that she sells for \$2.50 and a large mug that she sells for \$5.75.Yesterday Mary made \$56.Before she opened her shop in the morning,she had 200 mugs in her inventory.At the end of the day she had

44. ## Civics

In the federal system, how is sovereign power divided among state and federal laws and constitutions?

45. ## chemistry

How many moles of NaOH are there in 1 drop (0.050 mL) of 0.10 M NaOH?

46. ## physics

What linear speed must a 0.0487-kg hula hoop have if its total kinetic energy is to be 0.179 J? Assume the hoop rolls on the ground without slipping.

47. ## math

the biology club budgeted \$200 for their pancake breakfast. each meal costs \$1.50 to prepare. write an inequality that represents the number of meals that can be prepared without going over the budget.

48. ## math

An ice skater rotating around a vertical axis increases in angular velocityfrom 450degrees/s to 610degrees/s in 2.3 seconds. Find the angular acceleration

49. ## science

For a machine with an efficiency of 80%, what is the work output of the machine if its work input is 2,000 joules? would i divide 2000/.80? which gives me 2500? Also, If a machine requires an effort force of 750 newtons applied over a distance of 2 meters,

50. ## Grammar

what is the adjective and adverb in the following sentences? The plane circled the vacant field and slowly came in for a smooth landing. You should not drive too fast; however, a slow driiver can be dangerous too. Mira has been faithfully practicing the

51. ## trig

find sin s when cot s= -1/3, s in quadrant 4

52. ## American History

What is a non example of Magna Carta

53. ## biomechanics

During an elbow flexion exercise, the relative angle at the elbow is 22 degrees at .3s and 155 degress at .62s. What is the angular velocity of the elbow?

54. ## math

An object is spinning at 4 rev/s and starts deccelarting at .9 rev/s^2. How long will it take the object to stop?

55. ## English

1. I like him because of his honesty. 2. I like him on account of his honesty. 3. I like him on the ground of his honesty. 4. I like him thanks to his honesty. 5. I like him owing to his honesty. 6. I like him due to his honesty. (Are they all grammatical?

56. ## Data Management

Jeffrey wants to start his second hour with a hard-rock song and finish with a pop classic. How many different playlists can Jeffrey prepare if he has chosen 4 hard rock songs, 5 soul pieces and 3 pop classics?

57. ## HCA 240

I need help with this assignment about HIV/AIDS: An Overview its due sunday. I have to compose a 1,300 to 1,450 word paper in APA format. I have to explain the difference between HIV and AIDS, Descride various ways HIV can be transmitted, Identify and

58. ## college

How many moles of NaOH are there in 1 drop (0.050 mL) of 0.10 M NaOH?

59. ## Physics

If the change in position Dx is related to velocity v (with units of m/s) in the equation Dx = Av, the constant A has which dimension? a. m/s^2 b. m c. s d. m^2 I chose b?

60. ## Organic chem

When you react 1-octene wih borane tetrahydrofuran solution and hydrogen peroxided over NaOH and water... (hydroboration- oxidation reaction) how do you run the reaction differently to improve the yield of the major product 1-octanol?

61. ## calculus 4; multiple integration

The electrical charge distribution on a circular plate of radius R meters is given by the function f(x,y) = kx (1- sin y) in coulomb/m^2. Integrate the function over the entire plate to find the total charge Q.

62. ## physics

If a discus thrower rotates through the last 45 degrees of a turn in .11s and the distance from the axis of rotation to the center of the discus is 1.22m, calculate the average linear velocity of the discus.

63. ## college

Given 24 pens, either red or blue. If 4 are blue, what is the probability of you select 2 pens AT LEAST 1 will be blue. (without replacement, that is, you are taking 2 separate pens)

64. ## French

Are these nouns correct? montation capilulation manifestation arretation?? I think it's l'arrete, not larretation?

65. ## multiple integration; calc 4

The electrical charge distribution on a circular plate of radius R meters is given by the function f(x,y) = kx (1- sin y) in coulomb/m^2. Integrate the function over the entire plate to find the total charge Q.

66. ## math

Factor completely x³-8x²+11x+20

67. ## office finance

an office has total expenses of \$16,986 plus a total income in the amount of \$20,986. The gross income of the business is a.\$37.972, b.\$16,986, c.\$4.000, d.\$20.986

68. ## physics

A 75 kg box slides down a 25o ramp with an acceleration of 3.6 m/s2. Find the coefficient of kinetic friction between the box and the ramp.

69. ## To Any French Worker

Your fRench teacher has a collection of items that have been left in class. Tell whom they belong to. ex. le cahier/l'étudiante avec les cheveux blonds C'est le cahier de l'étudiante avec les cheveux blonds. les cassettes/le cousin de Paul Ce sont les

70. ## English

We have been given a list of words and have to write the plural of them. I have found the answer to each of the words but now have to write rule for each. I know that words ending in ch, x, s or s-like sounds will all end in es. I am having trouble find a

71. ## social studies

what railhead did cattle ranchers in Ft Concho bring their cattle to? which cities have raiheads?

72. ## Marketing

What is the decision facing American Express and what are the alternatives? (promotional strategy and integrated communication)

73. ## physics

A car has a mass of 1500 kg. What is the direction and magnitude of the force that is required to accelerate the car at 4.5 meters per second squared to the east?

74. ## Data Management

What is the highest power of 2 that divides evenly into 100!?

75. ## To: Economyst

I did mean Q Suppose you are the manager of a small chemical company operating in a competitive market. Your cost of production can be expressed as C = 100 + Q2, where Q is the level of output and C is total cost. a. Is this a short-run cost function? b.

76. ## Biology

Help with my course work 3 strips of potatoes of equal sizes are put into water, weak sucrose and strong sucrose solution. As far as prediction goes I know happens. But what is the aim of this experiment? I came up with this aim- To illustrate movement of

77. ## algebra

amy paid \$67.65 for a pair of running shoes during a 30% of sale. what was the regular price?

78. ## trig

Prove the following trig identity: 1 + sinx = sinx(1+cscx)

79. ## Calculus

Differentiate using the chain rule: y=(x+(x+x^(1/2))^(1/2))^(1/2) y'=(1/2)(x+(x+x^(1/2))^(1/2))^-(1/2) what are the next steps?

80. ## Physics

You want to make an old-fashioned pendulum clock, with a period of exactly 1.4 second(s). Use the Earth's gravitational acceleration g = 9.8 m/s2. a) Ignoring the size of the pendulum bob, from what length wire should you hang your pendulum bob? .4865 m b)

81. ## Math

Consider a bowl containing 36 different slips of paper. Ten of the slips of paper each contain one of the set of digits 0 through 9 and 26 slips each contain one of the 26 letters of the alphabet. Determine the probabilities of drawing one slip, what is P

82. ## Art

I need help understanding the Principles and Elements of Visual Arts with the help of images which examplify them...

83. ## Math

What is the probability of rolling a number that is divisible by 2 or 3? What is rolling a number?

what is a compass rose and legend?

85. ## college

The clarke family went sailing on a lske . thier boat averages 6 kilometers per hour

86. ## Physics

A student of weight 661 N rides a steadily rotating Ferris wheel (the student sits upright). At the highest point, the magnitude of the normal force FN on the student from the seat is 549 N. (b)What is the magnitude of FN at the lowest point? _________N

87. ## algebra 2

Solve the system by the addition method x+3y=-2 5x+15y=-10

88. ## Math-Problem Solving

If a single letter is drawn from the set {m, a, t, h, e, i, c, s}, what is the probability that the letter drawn is a member of the set {m, a, t, h}?

where in nature could you find a source of the same energy as that provided by batteries?explain

90. ## government

I have to write a bill about "student loans"... Can you give me an idea?...

91. ## geography

How do some people manage to live comfortably in extremely hot or cold climates?

92. ## science

Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters 12000J 2.

93. ## science

For each of the activities listed below: 1. Describe one way in which work is done (Reminder: For work to be done, the force and the distance must be in the same direction.). 2. List two simple machines used in each task. 1. making a meal oven, microwave

94. ## Physics

A coin slides over a frictionless plane and across an xy coordinate system from the origin to a point with xy coordinates (3.0 m, 4.1 m) while a constant force acts on it. The force has magnitude 2.4 N and is directed at a counterclockwise angle of 100°

95. ## physics

A baseball bat is rotating at 350rpm(revolutions per minute) at contact. What is the angular velocity in radians per second?

96. ## English

Is Kelly a male name of a female name?

97. ## Math

You have \$5 to spendon fruit for a picnic. Apples cost \$0.99 per pound and bananas cost \$0.49 per pound. Write an inequality to model the amount of apples and bananas you can buy.

98. ## Calculus

DEMAND FUNCTION: p = 492-0.15x^2 COST FUNCTION: C = 920+87x Find the number of items (x) that will produce maximum profits.

99. ## Maths

Three bananas cost the same as two oranges. If oranges are half the price of peaches, how many bananas could I get for the price of 3 peaches? My answers is 18 banannas. Is this correct? Thanks

100. ## Critical Thinking

I need to write a paper on a topic based on health care. I am looking on some ideas that I may be able to use. Again, the general topic needs to be health care and I have to pic a subtopic within that. Thanks!

101. ## ipc

Arrange the following from the most work to the least. For each instance, calculate the total amount of work done. Show all calculations, including units of measure. 1. pushing a box of math books weighing 600 newtons a distance of 20 meters 12000J 2.

102. ## algebra

what is the standard written form of these numbers ((1¡Á¡¼10¡½^1 )¡Á(1¡Á¡¼10¡½^(-1) ))/((1¡Á¡¼10¡½^0 ) )

103. ## Math

What times on a clock form an acute angle.. 2:00 6:40 1:30 12:50?

104. ## Geometry

Write an equation for the line containing the given points. (2,3) and (4, -4) How would I do this? I understand that first, you find the slope, but how do you find the y intercept? Thank you. :)

105. ## English

1. I know nothing yet. 2. I don't know about the fact yet. 3. I don't want to read the book yet. 4. I don't cook yet. 5. I haven't cooked yet. (What about the sentences above? Are they all grammatical? Is 'yet' used only with the present participle?)

106. ## management accounting

Fi a company has a policy of maintaining an inventory of finished goods equal to 30 percent of the following month's sales. For the forthcoming month of March, Ball has budgeted the beginning inventory at 30,000 units and the ending inventory at 33,000

107. ## English

Ck:And list errors that need to be correct We all have been through some difficult times in our lives. Some of the times might not have been as bad as others, but we still can help others by giving our advices about what they should and shouldn't do. I

108. ## Vector & Geometry

if A= i+j, B= 2i-3j+k and C= 4j-3k find: Ax(BxC) pls help with solution.

109. ## math

Find the first, second, and third quartiles of the data. 15, 6, 1, 13, 5, 11, 3, 8 My answer: 1st quartile: 3 2nd quartile: 7 3rd quartile: 13 Am I right?

110. ## pre alegra

A product that cost 2,000 increase by 5% in June. The new June price of the product increased by 5% on December 1st. How many dollars did the product increase by Dec 1. I don't have a clue! Can you please help

111. ## Grammar and Composition

Hi, I have started working on the Phone Book Character essay again. i did the drafting sheet just now. I will try to do as much of the essay as i can, while ofcourse still asking questions from you guys when i need help, but mostly i want to do it on my

112. ## Mathmatics

how do i solve 5x-14less than or greater to 2x+7

113. ## spanish

How do you say 'he is allergic to' in spanish? I think it would be something like this: el esta' (hower you say allergic to)los flores, but im not sure

114. ## Physics

tension in the cord is made up of weight mg, and centripetalforce directed outward. Add those as vectors to get tension. Period=2PIsqrt(l/g)

115. ## Calculus

What is implicit differentiation...as in what would be the steps in solving it. I read my textbook but it seems very confusing. 1) Differentiate both sides with respect to x 2) Realize that y is a function of x 3) Solve for y Plus the d/dx notation made it

116. ## statistics

The cutoff "t" needed is -1.8333. The standard deviation of the distribution of means of change scores is 2.0 and the mean change score for the sample studied is an increase of 5.2. What is the t score?

Marketing professionals must understand the consumer experiences in making purchase decisions. Keep the following questions in mind as you discuss this process: What are the stages of the consumer purchase decision process? What is the purpose of each

118. ## math

if a skater is rotating a spin at a constant angular velocity at 2.5 rad/s for 1.1s, what is the angular acceleration?

119. ## 6th grade social studies

Forms of communications of the andes?

120. ## Grammar and Composition Bobpursley

i put this post up at 2:21, i don't think you saw it: alright. i only have two things to point out. first, in Paragraph #4, 'Explain how the THIRD POINT is developed in this paragraph.' you said 'it does mention yard and flowers and pool' but that is

121. ## MATH 116

Suppose you are at the gas station filling your tank with gas. The function C(g) represents the cost C of filling up the gas tank with g gallons. Given the equation: What does the number 3.03 represent? Find C(2) & Find C(9) PLEASE HELP!!

122. ## history

can you check this question Why did Napoleon invade Russia Napoleon invaded Russia because he wanted to complete his mastery of Europe.

123. ## finding online article

I need help finding an article online. It has to be on biomedical engineering related or science related. And the article has to talk about 3D or 2D or 2.5D imaging methods. I found a 2D and 3D article. But I can't find one about a 2.5D imaging sensor or

124. ## Biology

Can you explain this question A person who has been sunbathing all day eats a salts tablet.

125. ## English

When your writing any type of research paper are you writing in past or present tense?

126. ## physics

If the angular velocity at .19s is 3.2 rad/s at .27s, what is the average angular acceleration over this time interval?

127. ## biomechanics

An individual is running around a turn with an 11-m radius at 3.75 m/s. What is the runner's centripetal (radial) acceleration?

128. ## A.P American Government

What are some of the significant committees in the House and the Senate.

129. ## physics

A person standing at the edge of a seaside cliff kicks a stone over the edge with a speed of 18 m/s. The cliff is 52 m above the water's surface. How long does it take for the stone to fall to the water? With what speed does it strike the water?

130. ## canines!!

The scientific name of the dog is canis familiaris and that of the coyote is canis latans.this indicates that both the dog and coyote are members of same species or genus?? lil confused !

131. ## English

1. They want to have more of something such as food or money than is necessary or fair. (What is the positive degree of 'more'? Is it more or many? What is the part of speech of 'than'?) 2. I want more of something. 3. I want many of something. (Are both

132. ## Math

If P (A) = 2/3 (two thirds), P (B) = 1/6(one sixth), P (A and B) = 0, 16 what can you say about P (A or B)? That P is either two thirds or zero?

133. ## math

solve the quadratic equation xsquared - 2x - 3 = 0

134. ## english

Hi....I'm having trouble finding a song that shares a connection or a relationship to Hamlets "to be or not to be" sililoquy. Do you have any suggestions? Thankyou

135. ## Algebra

What is the perfect squaredigits sum 4

136. ## Math.

Hey thanks guys, im stuck XD 27.) if B + (-3) = -5 ; what is the value of b??? thankyou for whoeveer helps.

137. ## statistics

A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for their fathers. She has found that for the general population the distribution is skewed to the right, the mean degree of affection

138. ## Chemistry

How do i use energy coupling to work out how many molecules of ATP dG =-55 kJ/mol needed to make a peptide bond dG = +25 kJ/mol i don't really understand how to go about this do i need atp to activate the amino acids how can i calculate this??

139. ## Earth Science

Earth is always changing. What are two forces that cause the earth's surface to constantly change and what are their effects on the planet? Please answer within a few minutes.

IF YOU LEAVE AN APPLE OUT FOR A LLONG TIME .WHAT WILL HAPPEN?

141. ## English

1. They want to have many of something such as food or money. 2. They want to have more of something such as food or money. (Which one is correct? Do we have to use 'more' or' many' in this case?)

142. ## English

Let's talke about the following topics with your friends. 1. The following is Junsu's diary. Find out Junsu's worries and underline them. 2. Let's arrange what Junsu has to do. 3. Let's talk about what Junsu has to do first with his friends. 4. The

143. ## Algebra 2

Solve the system by the substitution method. 5x+7y=-18 y=5x-14

144. ## math

If the linear velocity of a club head in the golf swing is 50m/s at impact, what was the angular velocity if the club is .95m long?

145. ## Math

Which temperature would be higher, -3.139 degrees Celsius or -3.773 degrees Celsius?

146. ## MATH 116

Examine the rise in gasoline prices from 1997 to 2006. The price of regular unleaded gasoline in January 1997 was \$1.26 and in January 2006 the price of regular unleaded gasoline was \$2.31 (Bureau of Labor Statistics, 2006). Use the coordinates (1997,

147. ## Math

In a family with two children, what are the probabilities of the following outcomes, assuming that the birth of boys and girls is equally likely? a. Both are boys.b. The first is a girl and the second a boy. c. Neither is a girl. d. At least one is a girl.

A. Do you think there are any industries that operate almost devoid of global competition? What inherent immunities do you feel they enjoy?

149. ## biology

How is ATP involved in maintaining the sodium and potassium gradients across a cell membrane.

150. ## Physics

Hi, So I have this picture of a ramp with a ball going down. I have figured the average velocity, acceleration, and total distance. Now I have to find out the instantaneous velocity at half the distance? I a not sure how to find the instantaneous velocity,

151. ## Algebra (math)

1. The equation y=-1777x+27,152 can be used to predict the number of y of gun deaths in the U.S. x years after 2000, that is x=0 corresponds to 2000, x=3 corresponds to 2003, x=4 corresponds to 2004 and so on. Predict the number of gun deaths in 2004 and

152. ## algebra

can someone please tell me how to solve these, thanks! 1.2(3b-4)=8b-11 2.5(r-1)=2(r-4)-6 3.2y+3=3(y+7) 4.15x-10=-9x+2

153. ## math 115

2/7 over = 1.6 20 over r solve for r not looking for just an answer, would appreciate the formula for solving, thanks

what is the greatest common factor for 7 & 35? is it 1 or 7? What is the greatest common factor for 12 & 36? Is it 6 or 12? Thank you.

155. ## math

what number would it be? question: If I have 500 pearls in my bag, and I ask you to take a number of pearls that when subtracted by 1 will be divisable by the numbers from 2 to 7 excluding 4, then how many pearls will be left in the bag?

156. ## careers

what jobs have a starting salary atleast (or around) 50,000 and have a high employment rate. I know nursing is one. Are there others that aren't in the medical field?

158. ## velocity

Angular vleocity of a rotating object from 650degrees/s to 495degrees/s in 1.2 seconds. What is the angular acceleration

159. ## world history

could you help me with this question Why did being a sea power help britain to survive an attack by the French?

160. ## trig

find the remaining 5 trigometric functions of x cos x = 1/5, x in quadrant 1

161. ## Maths

Two brothers Sam and Matt decide to buy a new game for their Xbox.Sam is going to pay twice as much as Matt.The cost of the game is \$60.00.How much does each brother have to pay?

162. ## Math

1. |x+3|=4 x = 1, -7 2. |x-2|=6 x = 8, -4 3. |x-5|*17 x = ?? [>* means greater/less than OR equal to] Please check. And show how to do numbers 3 and 4. Thank you.

163. ## French

My French Post is almost at the bottom, so I would please like help instantly

164. ## Math.

8.)10/x + x = 7 15.) s= 4+15/3 --------- -4(1)+1 idontknow if you get the dotted line but its suppose to be like a stright line under thoose numbers.

United States is the only sizable industrialized country that does not have a socialist party as a major source of power. Why is this??? Can someone please give me some points or reasons??? Thank you!!

166. ## Mathmatics

add 14 to what subtract 2x to what and divide 3 by what rain

how do solve the equation to the answer of 26? 7x4-4 divided by 2 =26?

168. ## MGMT/216

What do you consider to be a source of ethics? What environmental factors contribute to ethical behavior? How are business ethics developed? Explain your answer

169. ## science

explain how the nucleus can control what happens in a lysosome?

170. ## American History

What is a non- example (opposite of) House of Burgess

171. ## Math

You finish a two-mile walking race in 36.5 minutes. Write an inequality for the average speed of the walkers who finished after you did. (Average Speed = Distance/Time).

172. ## English

Ck:Paper completely for all errors and let me know it error at the end of essay. Advices To Overcome Difficult Times We all have been through some difficult time in our lives. Some of the times might noot have been bad as others problem, but we still can

173. ## algebra

how do i factor 8m^2-6mn-9n^2

How do i use energy coupling to work out how many molecules of ATP dG =-55 kJ/mol needed to make a peptide bond dG = +25 kJ/mol i don't really understand how to go about this do i need atp to activate the amino acids how can i calculate this?? d being

175. ## Literature

I need as many people's ideas' on what hopes they have for the United States..any ideas? Thanks -MC

176. ## Social studies

i went on all those sites already i want to know about his roles and prop not his history

177. ## 6th grade social studies

What are the crops/livestock raised, and the resources mined in the Ande Mountains.

178. ## kinematics

An individual's arm segment is .18m long and has an angular velocity of 117degrees/s. What is the tangential velocity of the wrist?

14x+3x-40=11

180. ## Foreign Languages

How do you say "I love you,my love,when I hear the voice I love you,my life is never without you I live my life for you,It's the universe for me I love you,my love,when I her the voice" in French

181. ## History

what were the religious patterns in Egypt before Ahknaton

182. ## English Hamlet

How does Shakespeare link the ends of scenes to the beginnings?

183. ## Math

x=-6±√(6^2-4(1)(4)/(2(1)) x=(-6±2√5)/2 Can some one help explain how it came to 2sqr 5 I am lost

184. ## science

what is the speed needed to launch a space crop in outer space?

185. ## physics universal gravity

find the gravitaional force of the sun that acts on a 50 kg peron standing on earth. mass of the sun = 2E30 kg distance from sun to earth = 1.5E11 m radius of earth = 6.4E6 m

186. ## math

Take any two real numbers whose sum is 1(fractions, decimals, integers, etc. are appropriate. Square the larger and add the smaller. Then square the smaller and the larger. What will be true?

187. ## calculus 4; multiple integration

Find the surface area of the portion of a plane f(x,y)=2-x-y that lies above the circle x^2+y^2

188. ## chemistry

You have 5 metals A, B, C, D, E in 1.00M solutions of A^(3+), B^(3+), C^(3+), D^(3+), and E^(3+) respectively. When some of the half-cells are connected, the following results are found. Cathode /Anode /Cell Voltage C E 0.10V D B 0.08V A C 1.41V D C 0.55V

189. ## Algebra 2

Solve this using "inverse of the matrix". 3x-y=12 -x+8y=-4

190. ## Maths

What is the intergral of: 2x/[(x+1)^3] dx Can someone show me how to work to work it out please? Thanks!!

-15u=45

192. ## History

I'm writing a research paper on the Jacksonian Era. Can you help me with a good attention grabber to start my paper off with.

193. ## mathematics

12a^2b over 4 times 4a+8b over 20a^2b^3

Prove that: csc^2x = 1 + cot^2x

195. ## Mathmatics

how do i solve 7m=4m+21

196. ## Grammar and Compositon Bobpursley

Ok! I put a good hour into this, and I really did try. Please don't be harsh if there are a lot of mistakes. Drafting-Organization Sheet 1)_____________Phone Book Names_________________ 2)_____________John E. Mackintosh_________________

197. ## spanish

How do you say behind in spanish?

198. ## math

30/5x3-2 --------- 2-2/3 on the top part-do I divide 30 by 13, or divide 30 by 5 then multiply by 3 and subtract 2?

199. ## math

solv the inequality: 1. 7-3x [is less than or equal to] 22 ---> x [is greater than or equal to] -5 2. 4x-2/3 [is greater than or equal to] 1/3 ---> x [is greater than or equal to] 3/5 are these correct??

200. ## English

1. I want to do volunteer work at the Han River. I want to pick up trash and make it clean/clear. 2. I want to volunteer at the Han River. I want to pick up trash from the river, and make it clean/clear. (Would you check the English expressions? Correct

201. ## science

What does meiosis produce?

202. ## Social Stodies

Is there any thing else excpet that one you just gave me where i could find about enlil.

203. ## english : hamlet

How does Shakespeare link the ends of scenes to the beginnings?

204. ## English

1. The judge slowly took out three gold coins from his pocket. 2. The judge slowly put in three gold coins in/into his pocket. (Is #2 correct as the opposite meaning of #2? Can we use both 'in' and 'into'?) 3. The public prosecutor accused the criminal,

205. ## French

Students at the International Festival tell what countries they come from. Now ask them if their nationality corresponds to that country. ex. Robert:"Je viens d'Angleterre." Est-ce que tu es angalis? 1.Sarah: "Je viens du Canada." Est-ce que tu es

206. ## math

If a line is vertical, the definition of slope doesn't work for it. Why not?

207. ## chemistry

after taken a shower you noticed small droplets of water on the mirror explain how ths happent i really ned help with this question plz help

208. ## English

1. I don't read Harry Potter yet. 2. I haven't read Harry Potter yet. (#2 is correct, isn't it? What about #1? Is it not correct? Why is so?)

209. ## algebra 2

Solve the given system of linear inequalities by graphing: x+y>4 x-y

210. ## 7th grade Algebra 1 Honors 5-2 textbook help

How do you solve this for example g(t)-4 and the function is g(x)=x squared +1 . . . . . . .. . .I NEED THIS DONE BY TOMORROW HELP!

211. ## Physics

How do you divide 4.0 V by .041 A? Would the answer be: 97.6

212. ## math

Rusty the elephant was thirsty, despite the fact that water made up 85% of his body weight. After drinking a considerable amount of water, Rusty weighed 1350 pounds, and water made up 86% of his body weight. What was Rusty's weight before he had his drink?

213. ## Mathmatics

how do i solve 5(3-2n)=65

214. ## Science

What would happen if all the clocks in the world were to stop for seventy-two hours.

215. ## home economics

what happens to bacteria between tempretures five degrees and sixty three degrees

216. ## French

Your fRench teacher has a collection of items that have been left in class. Tell whom they belong to. ex. le cahier/l'étudiante avec les cheveux blonds C'est le cahier de l'étudiante avec les cheveux blonds. les cassettes/le cousin de Paul Ce sont les

217. ## caculus

solve log4(x-1) =3

218. ## chemistry

who said that each element was composed of extremely small particles democritus lavoisier proust dalton

219. ## Math.

25.) what is the value q, if -7 = q + 2????

220. ## Mathmatics

How do i solve 7x=x+18

221. ## Mathmatics

concerning my math problem 7x=x+18 lisa how did you get x=3

where can I find interesting facts about the State of Oklahoma?

i have to write two sentences that contain atleast two words in each sentence from following what,who,where,when,why,how,with

y=x-7 2x+y=8

225. ## To SraJMcGin

thanx sra 4 ur help, u r very kind.

226. ## Social studies

Were could i find good facts about Enlil(roles,props and what does the humans belive in him also its mini history

227. ## French

During his year in France, Jerry was asked to interview teachers and students from his French school who had spent their summer vacations countries. Rewrite his notes, using complete questions and answers.(The first 2 have been done) 1.Mme Verley? (Canada)

228. ## Foreign Languages

Can someone tell me what Melodifestivalen is?

229. ## history

what was amelia earharts street adress

230. ## spanish

what does chinga usted mean

231. ## spanish

what does te quiers comer toda la noche

232. ## science

Select the choices in which work is done by recording "yes" or "no": 1. Reese completing her chemistry homework. NO? 2. the movers carrying Catalina's amplifier from the moving truck to her house. NO? 3. Li pushing his motorcycle down his driveway. YES? 4.

233. ## science

How much work will be necessary for the band members to move the new 120 kilogram amplifier to the garage where they practice, if they were to slide the amplifier a distance of 35 meters on a frictionless surface at an acceleration of 2 meters/second? Show