# Questions Asked onSeptember 19, 2010

1. ## statistics

An IRS auditor randomly selects 3 tax returns from 58 returns of which 8 contain errors. What is the probability that she selects none of those containing errors?

asked by Kerri
2. ## Chem

f 147 grams of FeS2 is allowed to react with 88 grams of O2 according to the following unbalanced equation, how many grams of Fe2O3 are produced? FeS2 + O2 → Fe2O3 + SO2

asked by Valarie
3. ## physics

A child throws a ball with an initial speed of 8 m/s at an angle of 40 degrees above the horizontal. The ball leaves her hand 1 m above the ground. How long is the ball in flight before it hits the ground? What is the magnitude of the ball's velocity just

asked by Melissa
4. ## Chemistry

How would you prepare 1L of a .050 M phosphate buffer at pH 7.5 using crystalline K2HPO4 and a solution of 1 M HCl? pka of H2PO4 = 7.2

asked by HELP!!!
5. ## physics

Traumatic brain injury such as concussion results when the head undergoes a very large acceleration. Generally, an acceleration less than 800 m/s2 lasting for any length of time will not cause injury, whereas an acceleration greater than 1000 m/s2 lasting

asked by greg

Betsy, a recent retiree, requires $6,000 per year in extra income. She has$70,000 to invest and can invest in B-rated bonds paying 17% per year or in a CD paying 7% per year. How much money should be invested in each to realize exactly $6,000 in interest asked by Hannah 7. ## physics Richard is driving home to visit his parents125 mi of the trip are on the interstate highway where the speed limit is 65 mph Normally Richard drives at the speed limit, but today he is running late and decides to take his chances by driving at 80 mph.how asked by melissa 8. ## Statistics Roll two standard dice and add the numbers. What is the probability of getting a number larger that 9 for the first time on the third time. asked by Lori 9. ## Statistics In a department store there are 120 customers, 90 of whom will buy at least 1 item. If 5 customers are selected at random, one by one, find the probability that all will buy at least 1 item. asked by Lori 10. ## CSUEB An electron is released from rest at a distance of 9 cm from a proton. How fast will the electron be moving when it is 3 cm from the proton? asked by Lorena 11. ## Chemistry DDT, an insecticide harmful to fish, birds, and humans, is produced by the following reaction: 2 C 6 H 5 Cl (Chlorobenzene) + C 2 H O Cl 3(chloral) ==> C 14 H 9 Cl 5 (DDT) + H 2 O In a government lab, 1142 g of chlorobenzene is reacted with 485g of asked by Jack 12. ## General Chemistry A certain protein was found to have 0.855% zinc by mass. Determine the minimum molecular mass of the protein. How do I go about solving this? asked by Katie 13. ## Statistics You are shown a coin that its owner says is fair in the sense that it will produce the same number of heads and tails when flipped a very large number of times. Suppose you decide to flip a coin 100 times. a. What conclusion would you be likely to draw if asked by Rhea 14. ## music Thailand and Vietnam are both part of Southeast Asia, but their music is very different. What historical and cultural factors led to these musical differences? asked by jon 15. ## chemistry A sugar crystal contains approximately 1.7×10^17 sucrose (C12H22O11) molecules What is its mass in mg? asked by Mely 16. ## Chemistry If aluminum has a density of 2.7g/cm^3,what is the mass,in grams of the foil? It states that a package of aluminum foil is 54.3 yd long, 14 inches wide, and 0.00035 inches thick. asked by TT 17. ## Physics A car is being pulled out of the mud by two forces that are applied by the two ropes shown in the drawing. The dashed line in the drawing bisects the 30.0° angle. The magnitude of the force applied by each rope is 2900 newtons. Arrange the force vectors asked by Amy 18. ## Chemistry Combustion analysis of an unknown compound containing only carbon and hydrogen produced 2.277 g of CO2 and 1.161 g of H2O. What is the empirical formula of the compound? How do I go about solving this? asked by Laura 19. ## physics The engineer of a passenger train traveling at 25.0 m/s sights a freight train whose caboose is 200 m ahead on the same track. The freight train is traveling at 15.0 m/s in the same direction as the passenger train. The engineer of the passenger train asked by Anonymous 20. ## physics 2 A charged line extends from y = 2.50 cm to y = -2.50 cm. The total charge distributed uniformly along the line is -9.00 nC. Find the magnitude of the electric field on the x-axis at x = 0.25 cm. asked by stacy 21. ## Chemistry Calculate the amount of water (in grams) that must be added to (a)5.00 g of urea (NH2)2CO in the preparation of a 16.2 percent by mass solution, and (b)26.2g of MgCl2 in the preparation of a 1.5 percent by mass solution. asked by Diana 22. ## Statistics Suppose you believe that, in general,graduates who have majored in your subject are offered higher salaries upon graduating than are graduates of other programs. Describe a statistical experiment that could help test your belief. asked by Rhea 23. ## physics A 4kg object is subjected to two forces, F1=2Ni-3Nj, and F2=4Ni-11Nj. The object is at rest at the origin at t=0. What is the objects acceleration? I know you use F=m*a Do you add the two F vectors together & take the square root to find the sum of F? ex: asked by J 24. ## calculus An open box is to be made from a square piece of cardboard, 32 inches on a side, by cutting equal squares with sides of length x from the corners and turning up the sides (see figure below). Determine the function, V, in terms of x, that represents the asked by BJ 25. ## Maths A box with no top is to be built by taking a 6'' - by - 10'' sheet of cardboard and cutting x - in. squares out of each corner and folding up the sides. Find the value of x that maximizes the volume of the box. asked by Lala 26. ## calculus The sum from n=1 to infinity of cos(npi/3)/n! Does this absolutely converge, conditionally converge, or diverge? asked by Bob 27. ## Physics An elevator starts from rest with a constant upward acceleration and moves 1m in the first 1.9 s. A passenger in the elevator is holding a 5.3 kg bundle at the end of a vertical cord. The acceleration of gravity is 9.8 m/s2 . What is the tension in the asked by Cole 28. ## Chemistry In an acid-base neutralization reaction 28.74 mL of 0.500 M potassium hydroxide reacts with 50.00 mL of sulfuric acid solution. What is the concentration of the H2SO4 solution? Please help with this question, thank you. asked by Trever 29. ## geometry What is the length of FH if G is the midpoint, FG=12x-5, GH = 7x? asked by Yonna 30. ## Chemistry If aluminum has a density of 2.7g/cm3,what is the mass,in grams of the foil? asked by TT 31. ## Physics Block A of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been asked by Joe 32. ## Statistics Hi, I have to answer if each questions is a nominal, ordinal, interval discrete, interval continuous, ratio discrete, or ratio continuous. I would like to know if my answers are correct and if wrong what is the correct answer. Thanks 1. Highest level of asked by Paul 33. ## soil mechanics total normal stresses of 110 and 40 kpa are applied to two planes at right angles in an element of soil. the shear stress acting on those palnes is 20 kpa. what must be the value of the pore pressure in the element if the minor principle stress in the asked by nick 34. ## physics A train pulls away from a station with a constant acceleration of 0.44 m/s2. A passenger arrives at a point next to the track 6.2 s after the end of the train has passed the very same point. What is the slowest constant speed at which she can run and still asked by Chip 35. ## chemistry What is the conjugate base of the following substances: a. (CH3)3NH /(CH3)3N b. H3N-CH2-COOH / H3N-CH2-COO c. H3N-CH2-COO / H2N-CH2-COO d. OOC-CH2-COOH / OOC-CH2-COO e. OOC-CH2-COOH / HOOC-CH2-COOH asked by help 36. ## Chemistry Combustion analysis of 0.300 g of an unknown compound containing carbon, hydrogen, and oxygen produced 0.5213 g of CO2 and 0.2835 g of H2O. What is the empirical formula of the compound? C2H5O C3H8O2 C2H10O3 C2H5O2 asked by Selena 37. ## math(Please help) Betsy, a recent retiree, requires$6,000 per year in extra income. She has $70,000 to invest and can invest in B-rated bonds paying 17% per year or in a CD paying 7% per year. How much money should be invested in each to realize exactly$6,000 in interest

asked by Hannah
38. ## ap physics

You measure the radius of a wheel to be 4.16 cm. If you multiply by 2 to get the diameter, should you write the result as 8 cm or as 8.32 cm? Justify your answer.

asked by carlos
39. ## Physics

A rifle is aimed horizontally at a target 52 m away. The bullet hits the target 2.2 cm below the aim point.

asked by Brandon
40. ## Math

The final exam will count as two tests. Brooke has test scores of 80, 83, 71,61 and 95. What score does Brooke need on the final in order to have an 80? I thought 80+83+71+61+95 = 390 / 5 = 78 then I don't know what to do next. Although I did do 78 +2x =

asked by Amy~
41. ## physics

The speed of sound in air is about 330m/sec. If a lighting flash occurs 5.5 seconds before you hear the thunder how far away from you was the strike?

asked by Rose Victory
42. ## Physics 111

King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 48 m/s and at an angle of 29°. A cannonball that was accidentally dropped hits the moat below in 1.7 s. (a) How far from the castle wall does the

asked by Anonymous
43. ## Managerial Economics

anyone has answer to this? Discussion question As vice president of sales for a rapidly growing company, you are grappling with the question of expanding the size of your direct sales force (from its current level of 60 national salespeople. You are

asked by Matt
44. ## Physics

A current of a river flows steadily from west to east at 1.00 m/s. A boat in the river travels at 3.00 m/s relative to the water. The river is 20.0 m wide with parallel banks. The boat leaves the shore at point A, and point B is directly across the river

asked by .
45. ## Chemistry

Explain why ethanol is not soluble in cyclohexane. Also, how do you figure out whether something is polar or nonpolar?

asked by Diana
46. ## Managrial Economics

Anyone has answer for this please? A New Hampshire resort offers year-round activities: in winter, skiing and other cold-weather activities; and in summer, golf, tennis, and hiking. The resorts operating costs are essentially the same in winter and summer.

asked by Matt
47. ## Statisitcs

A large university campus has 60,000 students. The president of the students' association wants to conduct a survey of the students to determine their views on an increase in the student activity fee. She would like to acquire information about all the

asked by Rhea
48. ## physics 2

A charged line extends from y = 2.50 cm to y = -2.50 cm. The total charge distributed uniformly along the line is -9.00 nC. At what distance x does the result for the infinite line of charge differ by 1.0% from that for the finite line?

asked by stacy
49. ## physics

A volleyball is deflected vertically by a player in a game housed in a high school gymnasium where the ceiling clearance is 18m. If the initial velocity of the ball is 21.5 m/s, will the ball contact the ceiling?

asked by stephanie
50. ## physics

Consider the 692 N weight held by two cables shown below. The left-hand cable had tension T and makes an angle of θ with the wall. The right-hand cable had tension 760 N and makes an angle of 40◦ with the ceiling. a) What is the tension T in the

asked by Cole
51. ## Physics

A CD has to rotate under the readout-laser with a constant linear velocity of 1.25 m/s. If the laser is at a position 3.2 cm from the center of the disk, what are the revolutions per minute (rpms) of the disk? ***Can someone please step me through the

asked by Kelly
52. ## chemistry

what type of reaction is this Li + H2O --> LiOH A. Combination B. Combustion C. Decomposition Im thinking combination but the H2 is confusing me

asked by kellie
53. ## chemistry

Calculate the mass in g of each of the following. a. 2.3×10^22 H2O molecules b. 6.16×10^20 SO3 molecules c. 5.0×1025 O3 molecules d. 9.82×1019 CCl2F2 molecules

asked by Mely
54. ## psychology

Need two peer reviewed articles to help me work on those questions. below Discuss how social psychology differs from other related disciplines (e.g., clinical psychology, general psychology, sociology). Explain the main types of research approaches/methods

asked by rose
55. ## physics

Aerial skiing involves speeding down a steep ramp that curves sharply upward at the end to launch the skiers into the air. Once airborne, the skier twists and turns in complex combinations to score points in the competition. Consider an aerial launch ramp

asked by bob
56. ## algrebra 2

how to find the xintercept and y intercept 5y=15x-90

asked by karl
57. ## physics

A car starts from rest and travels for 5.0 seconds with a uniform acceleration of +1.5 m/s^2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s^2. If the brakes are applied for 3.0 seconds, how fast is the car going at the end

asked by caitlin
58. ## Ohysics

An airplane flying at 120km/h due west moves into a region where the wind is blowing at 40km/h due east. If the plane's original vecotr velocity is Vplane, what is the expression for the plane's resulting velocity in terms of Vplane. a. 1/3 >Vplane b.

asked by Joel
59. ## chemistry

A scientist wants to make a solution of tribasic sodium phosphate, \rm Na_3PO_4, for a laboratory experiment. How many grams of \rm Na_3PO_4 will be needed to produce 575 mL of a solution that has a concentration of \rm Na^+ ions of 1.00 \it M?

asked by kim
60. ## Chemistry

what is the temperature change in Celsius when 29.5 L of what absorbs 2.3 kWh of heat?

asked by Anonymous
61. ## Math

The following figure is a rectangular box in which EFGH and ABCD are rectangles and BF (with a bar on top) is perpendicular to planes EFGH and ABCD.Are BD and GH parallel?

asked by Lilly
62. ## Physics

a grizzly bear makes a displacement of 1563 m due west, followed by a displacenent of 3348 m in a direction 32.0 north of west. what are the magnitude and direction of the displacement needed for the bear to return to its starting point

asked by Anonymous
63. ## Physics-Mechaincs

A block is pushed up a frictionless incline by an applied horizontal force as shown. The acceleration of gravity is 9.8 m/s2 . mass=2.7 kg F = 33 N theta=29◦ What is the magnitude of the resulting ac- celeration of the block? Answer in units of m/s2.

asked by Genevieve
64. ## phy

A car at the Indianapolis-500 accelerates uniformly from the pit area, going from rest to 340 km/h in a semicircular arc with a radius of 196 m. Determine the tangential acceleration of the car when it is halfway through the turn, assuming constant

asked by ami
65. ## College Physics

What is the work required to move a proton 1 cm along the 7 volt equipotential line?

asked by Shell
66. ## chemistry

A scientist wants to make a solution of tribasic sodium phosphate, \rm Na_3PO_4, for a laboratory experiment. How many grams of \rm Na_3PO_4 will be needed to produce 575 mL of a solution that has a concentration of \rm Na^+ ions of 1.00 \it M?

asked by kim
67. ## statistics

12. Four research participants take a test of manual dexterity (high scores mean better dexterity) and an anxiety test (high scores mean more anxiety). The scores are as follows. © …………….. (d)…………….. Person Dexterity Anxiety 1 1 10 2 1

asked by Elizabeth
68. ## physics

Two people pull as hard as they can on ropes attached to a 170 kg boat. If they pull in the same direction, the boat has an acceleration of 1.59 m/s2 to the right. If they pull in opposite directions, the boat has an acceleration of 0.518 m/s2 to the left.

asked by Maninder
69. ## physics

An object with uniform motion traveled 265cm in 2.4 seconds. how much time did the object take to travel the last 50cm?

asked by Rose
70. ## chem

is NaCl ion dipole, or Ion Ion? my notes say ion ion but online it says ion dipole. Is NaOH2 hydrogen bond or Ion-Dipole? my class notes say ion dipole but it seems, to me, to be h-bond too.

asked by RiChy
71. ## chemistry

What mass of carbon dioxide is produced from the complete combustion of 8.20×10−3 g of methane?

asked by kim
72. ## Chemistry

Calculate the mass of nitrogen dissolved at room temperature in an 80L home aquarium. Assume total pressure of 1 atm and mole fraction of .78 for nitrogen

asked by Johannie
73. ## physics

A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 4.15 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of 25° when they move past the

asked by ba
74. ## physics

a student throws a ball straight upwards to a height to height of 7.50m How much work did did the student do?

asked by tony
75. ## biology

energy that is lost at each trophic level of an ecosystem is replenished by????

asked by anna
76. ## Chemistry- urgent help needed

How do I prepare 40% v/v from 95% ethanol? When we say 95% ethanol, do we usually mean 95% w/w ethanol unless otherwise stated? Please show me the calculation steps to prepare 40% v/v from 95% w/w ethanol. Thanks.

asked by annie
77. ## physics

A person in a stationary, non-moving elevator drops a coin and it reaches the floor 0.6 seconds later. Now he repeats the experiment with the elevator moving. Would the coin reach the floor in less time same time or more time, if it were dropped when the

asked by Rose Victory
78. ## Physics

h t t p : / / b i t . l y / 9 S F F F o a) What is the minimum value of F needed to move the two blocks? b) If the force is 10% greater than your answer for (a), what is the acceleration of each block?

asked by Phil
79. ## Physics

A 24 kg box is released on a 21 degree incline and accelerates down the incline at 0.27 m/s^2. a) Find the friction force impeding its motion. b) What is the coefficient of kinetic friction?

asked by Robert
80. ## Physics-Mechaincs

A 1.3 kg mass accelerates at 5.8 m/s2 in a direction 36◦ north of east. One of the two forces acting on the mass has a magnitude of 17.3 N and is directed north. Determine the magnitude of the second force. Answer in units of N.

asked by Genevieve
81. ## chemistry

Use the concepts of effective nuclear charge, shielding, and n value of the valence orbital to explain the trend in atomic radius as you move across a period in the periodic table.

asked by jojo
82. ## CHEM

Calculate the mass of nitrogen dissolved at room temperature in an 80L home aquarium. Assume total pressure of 1 atm and mole fraction of .78 for nitrogen

asked by Johannie
83. ## Physics

A jetliner can fly 6.50 hours on a full load of fuel. Without any wind it flies at a speed of 2.15 102 m/s. The plane is to make a round-trip by heading due west for a certain distance, turning around, and then heading due east for the return trip. During

asked by Brian
84. ## chemistry

Calculate the empirical formula for each of the following natural flavors based on their elemental mass percent composition. vanillin (responsible for the taste and smell of vanilla): C 63.15% H 5.30% O 31.55%.

asked by Mely
85. ## Physics

Block A of mass 4.0 kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650 N m. The other end of the spring is attached to a wall. The block is pushed toward the wall until the spring has been

asked by Joe
86. ## Math(Please check)

Translate the following sentence into a mathematical equation: "The area, A, of a circle is the product of the number pi and the square of the radius, r." A=pi X r^2 Is this correct?

asked by Hannah
87. ## statistics

In a box of thirty AAA batteries, there are three defective batteries. Two batteries are randomly selected and tested. What is the probability that both are defective, if the first one is not replaced after being tested?

asked by Lori
88. ## world cultural geography

what is christain political and social organization?

asked by alanaR.
89. ## physics

a 9.0 g ice cube at -10 C is put into a thermos flask containing 100 cm^3 of water at 20 C. by how much has the entropy of the cube-water system changed when the equilibrium is reached? the specific heat of ice is 2220 J/kg K.

asked by Jarad
90. ## Sta

A regular feature in a newspaper asks readers to respond via e-mail to a survey that requires a yes or no response. In the following day's newspaper, the percentage of yes and no responses are reported. discuss why we should ignore these statistics.

asked by Rhea
91. ## Statisitcs

The operations manager of a large plant with four departments wants to estimate the person-hours lost per month due to accidents. describe a sampling plan that would be suitable for estimating the plantwide loss and for comparing departments.

asked by Rhea
92. ## math

There are 18 students standing in a circle, evenly spaced and consecutively numbered. Which student is directly opposite student 1

asked by Hannah
93. ## chemistry

Calculate the empirical formula for each of the following natural flavors based on their elemental mass percent composition. nitroglycerin (used medically as a vasodilator to treat heart conditions): C 15.87% H 2.22% N 18.50% O 63.41%. Express your answer

asked by Mely
94. ## physics

You have designed a rocket to be used to sample the local atmosphere for pollution. It is fired vertically with a constant upward acceleration of 19 m/s2. After 23 s, the engine shuts off and the rocket continues rising (in freefall) for a while. (Neglect

asked by Anonymous
95. ## chem

What is the percent composition of carbon in sodium carbonate (Na2CO3) Na2CO3 = 12/106 x 100 = 11.32% is this correct?

asked by vanessa
96. ## geometry

i need help with this geometry prblem my math book is online on this site: w w w . k e y m a t h . com / D G 3 the class passcode is: 1574-4c524 The chapter is 0 Lesson 0.2 pg. 9 problem number 6 REMEMBER 4-FOLD SYMMENTRY IS NEEDED !!! URGENT !!!

asked by vaishnavi
97. ## physics

A red train traveling at 72 km/h and a green train traveling at 144 km/h are headed toward each other along a straight, level track. When they are 720 m apart, each engineer sees the other's train and applies the brakes. The brakes slow each train at the

asked by Anonymous
98. ## EP high

A 0.6 kg rock is projected from the edge of the top of a building with an initial velocity of 11.1 m/s at an angle 51◦ above the horizontal. Due to gravity, the rock strikes the ground at a horizontal distance of 18.7 m from the base of the building.

asked by asila
99. ## physics

While exploring a cave, a spelunker starts at the entrance and moves the following distances: 75.0 m north, 290 m east, 180 m at an angle 30.0° north of east, and 150 m south. Find the resultant displacement from the cave entrance.

asked by Anonymous
100. ## chemistry

2 NO2(g) N2(g) + 2 O2(g) The ΔH° for the reaction above is -66.4 kJ. The system is initially at equilibrium. What happens if N2 is added to the reaction mixture at constant temperature and volume? The reaction absorbs energy. The reaction releases

asked by Megan
101. ## chemistry

2C2H6(g) + 7O2(g) > 4CO2(g) + 6H2O(g) KCl(s) > K(s) + Cl2(g) is this balanced?

asked by kellie
102. ## Physics

A point (labelled P in the figure) is attached to the rim of a disk of radius 0.2 m, which can turn around an axis through its center. It is rotating counterclockwise with a speed of 2.5 m/s. Can someone please step me through the problem step by step?

asked by Kayla
103. ## Chemistry

H2(g) + I2(g) 2 HI(g) The forward reaction above is exothermic. At equilibrium, what happens if I2 is removed from the reaction mixture at constant temperature and volume? The reaction absorbs energy. The reaction releases energy. [H2] increases. [H2]

asked by Megan
104. ## Chemistry

Could someone please help me with these two questions. I am having trouble. 1. What is the molarity of a solution if 48.0 mL of a 0.220 M solution is required to neutralize a 25.0-mL sample of the solution? 2. The mixing of which pair of reactants will

asked by Sarie
105. ## Economics

Pick one MARKET in which the price system does not produce an equitable price and quantity of output.

asked by TSK
106. ## physics

An inquisitive physics student, wishing to combine pleasure with scientific inquiry, rides on a rollercoaster sitting on a bathroom scale. (Do not try this yourself on a rollercoaster that forbids loose heavy packages.) The bottom of the seat in the

asked by Manny
107. ## Economics

Suppose the total output curve increases at an increasing rate for workers 1 to 50, increases at a decreasing rate from workers 51 to 101, and decreases beyond 101 workers. You would know that Choose one answer. a. marginal product is increasing from

asked by Anonymous
108. ## Calculus

Find the functions a) f o g, b) g o f, c) f o f, d) g o g, and their domains. f(x)= square root of x, g(x)= cube root of 1-x These are my answers, but I am not sure about them and I only figured out one domain... that is the part that really confuses me.

asked by Chelsea
109. ## physics

Assuming biological substances are 90% water and the density of water is 1000 kg/meter cubed, estimate the mass of a fly, which can be approximated by a cylinder 4 mm long and 2 mm in diameter (volume (length*pi*radius squared) the answer is 1.131 X10 to

asked by Mariah
110. ## Physics

Two cars start from the same place at the same time. After two hours, one car has traveled 30% farther than the other. If one car's speed is 20mph larger than the other car's speed, what are the speeds of the cars? Solve algebraically

asked by Anna
111. ## science

5a 30 kg girl and a 25 kg boy face each other on friction -free roller blades . the girl pushes the boy ,who moves away at a speed of 1.0 m/s . the girls speed is how many m/s /

asked by Rich
112. ## chemistry

What mass of copper(II) nitrate would be produced from the complete reaction of 25.1 g of copper, according to the chemical reaction shown below? Cu + 2 AgNO3 ----> Cu(NO3)2 + 2 Ag i got 74.08 is that correct?

asked by vanessa
113. ## chemistry

for an oxygen atom,wich requeres more energy,the addition of two electrons or the removal of one electron?explain why

asked by kabelo
114. ## Math Word Problem

In an NFL football game, the Bears scored a total of 41 poionts, including one safety (2 points) and two field goals (3 points each). After scoring a touchdown (6 points), a team is given the chance to score 1 or 2 extra points. The Bears, in trying to

asked by Amy~
115. ## Physics

If you're dragging a 75kg log along the ground at constant velocity and you have to pull on it with a horizontal force of 250 N, what is the resistive force exerted by the ground??

asked by Anonymous
116. ## Organizational Behavior

Questions 1. Research conducted by Luthans supports the belief that promotions are base on performance. True or false 2. Tenure is negatively related to turnover. True or False. 3. Age and avoidable absences are negatively related. True or False. 4. Which

asked by Edith
117. ## math

i am a number in the fourth row on the hundred chart. my ones digit is twice my tens digit. what number am i;

asked by elena
118. ## physics

A tennis player standing 11.5 m from the net hits the ball at 2.60° above the horizontal. To clear the net, the ball must rise at least 0.252 m. If the ball just clears the net at the apex of its trajectory, how fast was the ball moving when it left the

asked by nate
119. ## math

i need help with this geometry prblem my math book is online on this site: w w w . k e y m a t h . com / D G 3 the class passcode is: 1574-4c524 The chapter is 0 Lesson 0.2 pg. 9 problem number 6 URGENT !!!

asked by vaishnavi
120. ## physics

SOMEBODY ANSWER THIS PLEASE, Two people pull as hard as they can on ropes attached to a 170 kg boat. If they pull in the same direction, the boat has an acceleration of 1.59 m/s2 to the right. If they pull in opposite directions, the boat has an

asked by manny

To save for their retirement, a couple deposits $4000 in an account that pays 5.9% annual interest compounded quarterly. What will be the value of their investment after 20 yr? asked by Anonymous 122. ## Statistics Is the water on your airline flight safe to drink? It is not feasible to analyze the water on every flight, so sampling is necessary. In August and September 2004 the EPA found bacterial contamination in water samples from the lavatories and gallery water asked by Patrick 123. ## Statistics A survey of 100 mayonnaise purchasers showed that 65 were loyal to one brand. For 100 bath soap purchasers, only 53 were loyal to one brand. a) Perform a two-tailed test comparing the proportion of brand-loyal customers at á=.05.b) Form a confidence asked by Kim 124. ## English In a total of 200 words, write two paragraphs with about how interest rates affect our purchasing decision. Identify the topic sentence in each by underlining it. I need help with Identifying topic sentence asked by Cara 125. ## Chemistry My teacher showed us these examples in class, he says he need to be able to know when something is soluble in something else but i have no idea how to know. anyone have any rules on how to know? This is the examples he gave us: is CsI soluble in H2O? yes asked by Jessie 126. ## English It often seems that fictional characters are under stress and that they lead lives of great difficulty. To what degree do the difficulties that character experience bring out either good or bad qualities, or both? ( In Shirly Jacksons the Lottery, or Young asked by renne 127. ## music what is the function on health insurance? What is the functions of disability insurance? whatis the functions of life insurance? asked by cara 128. ## physics If you heat a thin, circular ring in the oven, does the ring’s hole get larger or smaller? When the lid of a glass jar is tight, holding the lid under hot water for a short time will often make it easier to open. Why? asked by jen 129. ## Chemistry a mole of ethanol weighs only 46g; how many molecules does it contain? asked by Em 130. ## Physics Ports A and B are 400 miles apart. One boat starts from port A for port B at 6:05 and travels with a constant speed of 12 mph. If it leaves port A at 8:20, what speed musta a second boat have to arrive at port B at the same time? Explain your reasoning. asked by JD Smith 131. ## math An alloy of metals is 25% copper. Another alloy is 50% copper. How much of each alloy should be used to make 1000 grams of an alloy that is 45% copper asked by Danie; 132. ## Physics h t t p : / / b i t . l y / 9 S F F F o a) What is the minimum value of F needed to move the two blocks? b) If the force is 10% greater than your answer for (a), what is the acceleration of each block? asked by John 133. ## Physics-Mechaincs A rowboat crosses a river with a velocity of 1.01 m/s at an angle 30◦ North of West relative to the water. Water’s frame of reference: speed of boat: 1.01 m/s direction from current: 30◦ The river is 322mwide and carries a current of 1.63 m/s due asked by Genevieve 134. ## math Convert each of the following repeating decimals to a/b form, where a, b are integers and b ≠ 0. #2a ¯ 0.4 #2c ¯ 1.396 #2e ¯ -2.34 asked by Anonymous 135. ## english how can i make this sentence more concised She also demonstrates that the patients can make an impact on the nurses and influence them to care for the patients like their own family asked by flame 136. ## Science What weather would it be when: A. a cold front is moving into an area that has warm, moist air. B. A warm front is moving into an area that has cold, dense air. C. A cool sea breeze is blowing inland, causing warm, humid air to rise. D. Air pressure is asked by Leah 137. ## Physics Ports A and B are 400 miles apart. One boat starts from port A for port B at 6:05 and travels with a constant speed of 12 mph. If it leaves port A at 8:20, what speed musta a second boat have to arrive at port B at the same time? Explain your reasoning. asked by JD Smith 138. ## pre cal how many real number solutions are ther to the equation 10x^2+31x=-24 asked by Anonymous 139. ## physics a car is going 8 m/s goes over a cliff 78.4 meters high. How far from the base does it land? asked by imani 140. ## Biology fatty acid is to fat as glucose is to starch glycogen cellulose all none.. asked by Hiba 92 141. ## mrt Predicting what types of bicycles different customers will want and deciding which of these customers the business will try to satisfy are activities a firm should do as part of asked by kerry 142. ## Physics Sandy is racing her sister home, but they each take a different route. Who will win: the one with the greatest average speed or the one with the greatest average velocity? Explain, using some sample numbers. asked by Emily 143. ## Chemistry 226Ra88 decays by emitting three alpha particles and three beta particles. what's the resulting nuclei? Is it 238Bi83? (Number on left is mass # and on right is atomic #) asked by Anonymous 144. ## please chem" help" a quantity of 0.5 g of crystalline NaCl is added to one liter of soultion containing 10e-3 mol of dissolved Ag+ demonestrate that AgCl precipitate from the solution and calculate the wight og AgCl in grams that form per liter. Assume that all activities asked by moon 145. ## math use the graph to find the following a. f(3) b. the domain c. any x- value for which f(x)=2 d. the range asked by Anonymous 146. ## literture what are the questions for ms.Lottie's marigolds asked by Anonymous 147. ## Calculus Okay, I have a graph of the f(x). It is a parabola that opens up. What does the graph of f(|x|) look like (the absolute value). Is it the same, or flipped or translated? Can someone describe what it looks like to me please :) asked by Jon 148. ## re:social studies The Democratic point of view is that the Republicans are the party of "No," and progress will be severely impeded if Republicans gain a majority in Congress. Republicans will extend the tax cuts for everyone, including the rich. why though? The Republican asked by gaby 149. ## Chemistry In trial one the mass of silver oxide is .5g. The mass of silver metal product is .431 grams. In trial two the silver oxide=.498 and silver metal=.388. How do you use this information and the conservation of mass to calculate the mass of oxygen that asked by mike 150. ## French Can you check these. I'm not really sure how to do these so I need a little help and examples. Part 1: Des promoms interrogatifs et relatifs Complétez en utilisant qu'est-ce qui ou qu'est-ce que. 1. ---------- se passe? Answer: Qu'est-ce qui 2. asked by Missy 151. ## calculus what normal annual interst rate has an effective annual yield of 7.8% under continuous compounding? asked by annonymous 152. ## algebra 1 Bushes that bites kass kass had been doing yard work all summer to save for a new bike and ms oleonary had asked her to plant a row of barberry bushes on each side of her drive way. se specified to kass that there should be a 1 foot space between the asked by marina 153. ## grade 5 math (please help) The theater group performed on Friday and Saturday night. Three hundred and twenty four attended on Friday, and 33 more attended on Saturday. How many people saw the show? I need to write an equation for this. asked by jakob 154. ## Algebra Could you please check my work on these word problems? My solutions just don't seem right, could you please let me know where I may have messed up. Many people know that the weight of an object varies on different planets, but did you know that the weight asked by asd 155. ## Math The radius,diameter, or circumferences of a circle is given. Find the missing measures. D=2a,r=___,C=___. For the radius I got 1a and the circumferences I got 6.28.a. Could someone check my answer? Thanks asked by Shadow 156. ## College Physics A car initially traveling northeast (45° N of E) at 28.3 m/s takes 6.0 s to turn to the east. After the turn, the car is traveling due east at 20.0 m/s. What is the value and direction of the change in velocity? asked by Angela 157. ## college math Solve. write the solution set using interval notation 9-(7x-9)is greater than or equal to sign -8(x+1)-8 asked by Anonymous 158. ## ETH 125 What is the definition of socially compliant? I am completing an assignment that requires to categorize this statement for one of two groups or both (Christian American/ Muslim and Arab American). asked by Bobbie 159. ## chemistry Solid magnesium metal reacts with chlorine gas according to the following equation: Mg + Cl2 --> MgCl2 What mass of magnesium chloride is formed in the reaction between 7 g of Mg and 13.2 g of Cl2 is this correct 7 g+13.2 g = 20.2 grams ? asked by kellie 160. ## calculus lim as x approaches 0 of tanx/x asked by Anna 161. ## physics A ball is kicked at a 37 degree angle, with a velocity of 14.6 m/s. How high and far does the ball go? asked by stephanie 162. ## Probability Can anyone show me how to do these? In the game of Yahtzee, suppose you have dice 1-2-4-5-6. What is the probability of rolling the 1 and 2 once and getting a large straight? What is the porbability of rolling the 1 and 2 twice and getting a large asked by Diane 163. ## physics Assuming biological substances are 90% water and the density of water is 100 kg/meter cubed, estimate the mass of a fly, which can be approximated by a cylinder 4 mm long and 2 mm in diameter (volume (length*pi*radius squared) asked by Mariah 164. ## science a girl on a motorbike passes by at a speed of 15 m/sec.her mass is 40 kg. what is the kinetic energy asked by sergio 165. ## maths for tan2x=3 i get should get two values 71.56 and 251.56 but i dnt knw how to solve to get this two values. pls help me with this. thanx in advance. asked by nick 166. ## Physics I solved 1 out of 2 correctly: A shell is launched at 140 m/s 56.0 degrees above the horizontal. When it has reached its highest point, it launches a projectile at a velocity of 110 m/s 35.0 degrees above the horizontal relative to the shell. 1) Find the asked by . 167. ## physics total normal stresses of 110 and 40 kpa are applied to two planes at right angles in an element of soil. the shear stress acting on those palnes is 20 kpa. what must be the value of the pore pressure in the element if the minor principle stress in the asked by nick 168. ## Finance ER Medical Supplies had sales of 2,000 units at$160 per unit last year. The marketing manager projects a 25 percent increase in unit volume this year with a 10 percent price increase. Returned merchandise will represent 5 percent of total sales. What is

asked by Joceline
169. ## English

I selected 5 sentences as promised. I really hope the others were correct! Sentence number 6 refers to the Italian grading system which I don't know how to express in English. 1) During the break I go out in the courtyard.We aren't allowed to smoke or run

asked by Franco
170. ## geometry

What is the pattern to 1,3,6,10,15,...? the answer would be really appreciated :D

asked by JAnice
171. ## English: Puritans

The question is: Why could Winthrop's ideal not be achieved? The paragraph where I have to find the answer: Winthrop describes an ideal society, which, if the Puritans had been able to achieve it, would have been a reasonable facsimile of paradise on

asked by Amy~
172. ## statistics

c. Compare the two sets and describe what you discover. The following data sets shows the ages of the first seven presidents (President Washington through President Jackson) and the seven most recent presidents including President Obama. Age is given at

asked by Yvette
173. ## Chemistry

If a person has a mass of 62 kg, how many pounds of water does she have in her body? And it gives the typical adult body containing 51% water

asked by TT
174. ## physics

How do we tell if an object is in free fall?

asked by jo
175. ## COM156

Identify three challenges that may arise when writing a paper. Explain the strategies you will use to overcome those challenges.

asked by sandra
176. ## global

Can someone please help ,still can not find out the following In the book iooi Arabian Nights...Thievery as a way of life, humor through trickery of the innocent and distrust of foreigners. I was told to look at Ali Baba but still don't see the answer

asked by Susan
177. ## English

Why is it important to discuss the author of a book and the background of the author to students?

asked by Madeline
178. ## 11th grade

the line with the equation x+y=3 is graphed on the same xy-plane as the parabola with vertex (0,0) and focus (0,3). What is the point of intersection of the two graphs?

asked by edith
179. ## History

What were the causes of the Great War of Empire and why is it called that?

asked by Mary
180. ## physics

The current-density magnitude in a certain cicular wire is J= (2.75*10^10A/m^4)r^, where r is the radial distance out to the wire 's radius of 3.00 mm. The potential applied to the wire is 60.0 V. how much energy is converted to thermal enery in 2 hours?

asked by tauteh
181. ## Physics

A solar still is used to make fresh water from salt water by evaporation. Assume that during a summer day that 1000 BTU/ft sq of solar energy falls on the surface of the salt water. Determine how many inches of water are evaporated in 30 days. Assume that

asked by Aaron
182. ## chemistry

if you start with 1.25g of Cu, calculate the amount that will precipitate

asked by gerry
183. ## physics

In the ideal case of zero resistance, a ball rolling on a level surface will accelerate

asked by brenda
184. ## math

Jane’s car travels 224 mi on 12 gal of gas. Rounded to the nearest mile per gallon, how many miles to the gallon does her car get?

asked by Anonymous
185. ## math

Write each of the following square roots in the form a√b, where a and b are integers, b > 0, and b has the least value possible: a) √180 b) √363 c) √252

asked by Anonymous
186. ## math

Convert each of the following repeating decimals to a/b form, where a, b are integers and b ≠ 0. #2a ¯ 0.4 #2c ¯ 1.396 #2e ¯ -2.34

asked by Anonymous
187. ## Math 117

Give exact and approximate solutions to three decimal places. (x-8)^2=49 I need step by step example on how to solve this AND input it into a calculator. Please!

asked by Sabrina
188. ## math

which number is closer to zero, -4/5 or 5/4 please explain

asked by mary
189. ## physics

A ball is thrown upward from the ground with an initial speed of 26.2 m/s; at the same instant a ball is dropped from rest from a building 14 m high. After how long will the balls be at the same height?

asked by Katie
190. ## Phsyics

Two cars start from the same place at the same time. After two hours, one car has traveled 30% farther than the other. If one car's speed is 20mph larger than the other car's speed, what are the speeds of the cars? Solve algebraically.

asked by Rosemendz
191. ## Precalculus/Algebra 3

If P(x)= -4x^3+5x-1, use synthetic substitution to find each of the following. 2. P(1/3) 3. P(i)

asked by Carol
192. ## English

6) We have afternoon classes on Tuesdays from 2pm to 4pm. 7) I prefer scientific subjects such as physics and maths to humanities. 8) We are tested orally twice a term and we get three written marks each term (is there a better way of expressing it??). 9)

asked by Jane
193. ## Chemistry

Classify the following reaction using 2 different classifications. 3Sr(OH)2+2Fe(NO3)3=3Sr(NO3)2+2Fe(OH)3

asked by Lena
194. ## Calc

An airplane is flying at a speed of 350 mi/h at an altitude of one mile and passes directly over a radar station at time t=0. a) Express the horizontal distance d (in miles) that the plane has flown as a function of t. I really don't know... would it be

asked by Chelsea
195. ## statistics

Intrinsic - 5.5, 5.5, 5.2, 5.3, 4.7, 5.5, 5.2, 5.3, 4.7, 5.4, 6.2, 5.2, 5.3, 4.7, 5.4, 6.2, 5.2, 5.5, 5.2, 5.3, 4.7, 5.4, 6.2, 5.2, 5.6 Extrinsic6.8, 5.5, 4.6, 5.7,5.6, 5.5, 4.6, 5.7, 5.6, 5.6, 5.5, 4.6, 5.7, 5.6, 5.6, 5.5, 4.6, 5.5, 4.6, 5.7 5.6, 5.6,

asked by crystal
196. ## Chemistry

What is the equation of iron reacting with iron(|||) ions to form iron(||) ions?

asked by Lew
197. ## algebra

simplify 4(3x-(3-5y+7x)+3y

asked by joyce
198. ## Physics

How would I approach this problem? What formula would I use to answer each part? Thank you in advance for any guidance... As part of the launch of the space shuttle, solid-rocket boosters (SRBs) first take it to an altitude of 45.0 km while they accelerate

asked by .
199. ## physics

Resolve a displacement of 700 cm into two components along direction lines that lie on opposite sides of the displacement and each of which makes an angle of 30° with the displacement.

asked by arlene
200. ## German

This was a worksheet and the instruction said to fill in the adjective endings, since the underlines wouldn’t show I put the spaces to be filled as parenthesis. The (-) means I think it does not need an ending and the (?) means im confused and not sure

asked by Josh
201. ## geography (grade 6)

5 disadvantages of trade?

asked by Ryan
202. ## Biology

Why is the maximum resolution and magnification of a light microscope less than the electron microscope?

asked by Chris
203. ## math

determine whether the graphs of the two lines are parallel y+7=7x , 7x-y=7

asked by Anonymous
204. ## math

solve the equation 9(x-4)+x=10(x-4)+4

asked by Anonymous
205. ## physics

32 kg box sitting on a ramp has a coefficent of 0.21. If the ramp is raised, at what angle will the box begin slipping?

asked by Angela
206. ## 8th grade math

simplify: 3 to fourth power minus square root of sixty-four divide (10-12 squared)

asked by zack
207. ## 1st science

could you sincerely please tell me about a badger.

asked by Anonymous
208. ## college physicalscience

the air speed of a plain is 223km/h and the pilot keeps the plane pointed north. A wind is blowing73.6km/h from the west. Determine the speed (in km/h) of the plane relative to the ground

asked by tiana
209. ## Pyshics

A car is travling forward at 75km/h. How far does the caar tavel in 25 s?

asked by Rex
210. ## chemistry

what happens when you cool biodiesel. petroleum-based diesel fuel, and vegetable oil?

asked by Emma
211. ## chemistry

how does kinetic molecular theory help us to explain boyle's law?

asked by navroz
212. ## Microscopes

What is the resolving power for light microscopes, and what is it for electron microscopes?

asked by Chris
213. ## Chemistry

Find the volume in liters of 0.452 M manganese(II) sulfate that contains 54.5 g of solute?

asked by Megan
214. ## physics

A deep mountain valley is separated by two vertical cliffs. One cliff is 600 meters high and the other is 400 meters high. A cable car runs from the foot of each cliff to the top of the other cliff. At what height above the ground do the two cable cars

asked by CJ
215. ## Chemistry

Can anyone answer this question please. (Determine the concentration of an aqueous NaCl solution if 31.5 mL are required to reach the equivalence point when titrated with 25.0 mL of 0.20 M AgNO3.)

asked by John
216. ## Physics

Two cars travel at the same constant speed. The first car travels for 10 minutes, the second for 27 minutes. If the second car travels 18 miles farther that the first, how far does each car travel?

asked by Rose
217. ## Calculus

Express the function in the form f o g. G(x)= The cube root of (x/1+x) So, (f 0 g)(x)= f(g(x))= f(cube root of x/1+x)= I don't know how to finish the problem because it does not give you the information for F(x)???

asked by Chelsea
218. ## chemistry

how many grams of hydrogen are produced when 1gram of aluminum is reacted?

asked by Joanne
219. ## Physics

Three Coulombs of charge flow through a wire in 150 ms. If the current ceases to flow (goes to zero Amps) for the following 850 ms, what is the average current over this one-second period?

asked by Phil
220. ## calculus

f(x)=kx^2+3 a) if the tangent lines to the graph of f at (t,f(t)) and (-t, f(-t)) are perpendicular, find t in terms of k b) Find the coordinate of the point of intersection of the tangent lines mentioned in part (a) in terms of k

asked by Rachel
221. ## maths

find the 8th derivative ofe^2x*sin2x?

asked by devu
222. ## english

Although Ashley does not know whether she is doing a right choice in helping Mr. Roby, I believe that she does make a good decision in contacting other doctors and nurses

asked by flame
223. ## math

i am a number in the fourth row on the hundred chart. my ones digit is twice my tens digit. what number am i;

asked by elena
224. ## English

I forgot to include the following sentences when describing the school day. As I couldn't send you my previous post, I typed "Jane" (to see if something changed.) Can you please check them please? 1) We have lessons (or we go to school) from Mondays to

asked by Franco
225. ## 10th grade

At a preview of a movie,6 people out of 500 walk out. suppose that 600,000 people see the movie. estimate the number of people who walk out

asked by Anonymous
226. ## physics

A model rocket is propelled upward by a cylinder of compressed water. The cylinder emits water at a rate of 0.050 kg/second with an exit speed of 80.0 m/s. Initially, the rocket has a mass of 0.15 kg, including the water cylinder. What is the rocket's

asked by Angela
227. ## 8th grade

How do I create a calendar with expressions using letters a,b,c, and d (1,2,3,4). Each expression needs to equal each day on the calendar.

asked by Tee
228. ## English

I forgot to include the following sentences which belong to the same summary. Thank you. 1) While building up the personality of Kurtz for his listeners, Marlow exposes the discrepancy between the Europeans’ words and their actions. 2) At the beginning

asked by Franco
229. ## world cultural geo.

what does it mean when the question asks "how are christians relationships to famaily"? and education?

asked by alanaR.
230. ## algebra

pliis the equivalent form indicated for each of the following fractions 7/9=?/45 and 11/5=?/35 pliis help meee

asked by alex
231. ## college

A car accelerates at a rate of 0.6 m/s2. How long does it take for this car to go from a speed of 55 mi/h to 60 mi/h?

asked by Maggie
232. ## 8th grade math

How do I create a calendar with expressions using letters a,b,c, and d (1,2,3,4). Each expression needs to equal each day on the calendar.

asked by Tee
233. ## math(Please check)

Find the real solutions of the equation: 14x^2 - 5x^2 - 1 = 0 I know that you have to use au^2 + bu +c = 0 so u^2 - 5x -1 which is prime. So would the answer be that the solution is the empty set?

asked by Hannah
234. ## history

I've decided to do my american history paper on consumer culture but i need to narrow it down to a specific time period and develop a thesis- is there a good thesis anyone can think of

asked by kelli
235. ## math

solve the given equation for x x-2/4+x+3/5=5/4

asked by Anonymous
236. ## math

The theater group performed on Friday and Saturday night. Three hundred and twenty four attended on Friday, and 33 more attended on Saturday. How many people saw the show?

asked by michelle
237. ## Geography

what industry provide the bulk of trade in canada? Thank you!

asked by Ryan
238. ## Statistics

The average mpg usage for a 2004 Ford Expedition 2WD for a sample of 10 tanks of gas was 17.0with a standard deviation of 0.8. For a Ford Explorer 2WD, the average mpg usage for a sample of 10 tanks of gas was 18.5 with a standard deviation of 1.0. (a)

asked by Kim
239. ## A&P

___________are usually attached to rough endoplasmic reticulum and produce enzymes and other protein componds.

asked by Abby
240. ## Pre-Calculus

Three numbers whose sum is 15 are in an arithmetic progression. The product of the 1st two numbers is 2 more than the 3rd. Find the three numbers.

asked by Melina
241. ## math

media service charges $30 for a phone and$20 month for its economy plan. find a model that determines the total cost,C(t) of operating a media services phone for 1 months C(t)= use the model to find the total cost for 3 months of service total cost=

asked by Anonymous
242. ## Chemistry

If a person has a mass of 62 kg, how many pounds of water does she have in her body?

asked by TT
243. ## social studies

There house will possibly go from democrate to republican. Will this impede progress or make for more progress in the government? What will the influence the tax reform bill?

asked by gaby
244. ## Englisth

Three common adjuective endings

asked by katherine
245. ## science

_____ contain a fuel, rods to control nuclear reactions, and a cooling system. Would Nuclear reactor work??

asked by Katie
246. ## English III

What does Miss Hannigan say shw will do to Anny and Sandy in the movie Annie? I looked it up and still can't find the answer.

asked by Betty
247. ## MARH

Do students at various universities differ in how sociable they are? Twenty-five students were randomly selected from each of three universities in a region and were asked to report on the amount of time they spent socializing each day with other students.

asked by Anonymous 1

In the short run a firm needs six units of labor to produce eight units of output and ten units of labor to produce nine units of output. If the price of labor is $2 per unit, what is the marginal cost of the ninth unit of output? asked by Anonymous 249. ## geometry i need help with this geometry prblem my math book is online on this site: w w w . k e y m a t h . com / D G 3 the class passcode is: 1574-4c524 The chapter is 0 Lesson 0.2 pg. 9 problem number 6 REMEMBER 4-FOLD SYMMENTRY IS NEEDED !!! URGENT !!! asked by vaishnavi 250. ## math solve the equation and check 1/5(y+3)+3=1/10(7y-4)-5 asked by Anonymous 251. ## biology are the antipodals hapliod or diploid? asked by bill 252. ## Algebra How many milimiters of pure acid must be added to 150 milimiters of a 30% solution of acid to obtain a 40% solution? I know that the answer is 25 milileters. Could someone show me with steps how to get the answer. asked by Mark 253. ## Anatomy What is the groove between the diapragm and ribcage in the lower part of the pleural cavity? asked by Cassy 254. ## chem is NaCl ion dipole, or Ion Ion? my notes say ion ion but online it says ion dipole. Is NaOH2 hydrogen bond or Ion-Dipole? my class notes say ion dipole but it seems, to me, to be h-bond too. asked by RiChy 255. ## physics a pendulum of length L=9.8m hangs in equilibrium and is given velocoity v=0.2m/s at its lowest point.What is the magnitude of the subsequent oscillation? asked by kabelo 256. ## PHY Two objects attract each other gravitationally with a force of 3.5 10-10 N when they are 0.33 m apart. Their total mass is 4.0 kg. Find their individual masses. A)larger mass kg B)sMaller mass kg asked by ami 257. ## PHI when sherry stopped freelancing at home and took a full-time job, her salary doubled. However, ther money she had available to spend above and beyond her monthly edxpenses increased only slightly. which of the following, if tru best explains the difference asked by Anonymous 258. ## English Can you help me find the most appropriate words, please? 1) My school consists of a three-storey building. There is a parking place (?) at the front and a courtyard at the back. 2)The teacher's room and the secretary's offices are on the ground floor asked by Franco 259. ## math how do you figure out what x is? 5x+1=2x+7 asked by mary 260. ## Algebra 2 how can i graph this piecewise function : f(x) = {x-4, if x1 asked by Mary 261. ## chemistry in trial one the mass of silver oxide is .5g. The mass of silver metal product is .431 grams. In trial two the silver oxide=.498 and silver metal=.388. Use the conservation of mass to calculate the mass of oxygen that combined with the silver asked by kelly 262. ## science i need the independent,dependent ,control group variable on a cat always landing on their feet asked by justin 263. ## math express the relation 6x+4y=24 in an equivalent form where y is a function of x asked by Anonymous 264. ## social studies How many people lived on the north american continent before european settlement? asked by lauren 265. ## college physics A box is sliding down a ramp sloping 25° above the horizontal. The coefficient of kinetic friction is 0.15. What is the acceleration? The answer is 2.8 m/s^2. How can this be solved with out mass? asked by Angela 266. ## Math I have this homework 4 prealgebra where i have to do subtractions with integers and the letter of the exercise goes in the box that has the number of the answer then when im finish the is gonna come out to da title question What should you do when you cant asked by Alma 267. ## english how can i fix this sentence a woman who comes to Ashley for a routine blood pressure check in the clinic shares the news to Ashley that her 19-year-old daughter is pregnant asked by flame 268. ## computer science (Assembly language) Hello, i am new at assembly language and i just got started with this stuff. I have this assignment which doesn't make any sense to me. Can someone please help? I am using Kip Irvine's, Assembly Language for x86 Processors, 6th edition. These are the asked by Star 269. ## physics An object with an inital velocity of 20 cm/sec is decelerated at 2 cm/sec/sec for 5 seconds,What will the resultant velocity be? asked by Anonymous 270. ## HEALTH Dr bob's computerized records have been compromised by a virus, resulting in damages to patients. Which of the following is most true? a) Dr bob will not be liable. b) dr bob will be liable. c) dr bob won't be liable if the virus was introduced by someone asked by Ab 271. ## Phi Economics continue to measure our countrys economic well being based solely on its GDP however, GDP measures only products and services bought and sold with no regard with whether these money-generating transactions are positive or negativer. For example, asked by Mamabrenda 272. ## 9th grade pliis the equivalent form indicated for each of the following fractions 7/9=?/45 and 11/5=?/35 pliis help meee asked by alex 273. ## Botany I need a labeled diagram of Cytokinsis Mitosis of the lily asked by chris 274. ## auditing Describe how the separation of (1) authorization of production transactions, (2) recording of these transactions, and (3) physical custody of inventories can be specified among the production, inventory, and cost accounting departments asked by rebeca 275. ## economics You are a utilitarian social planner and have a very limited number of vaccines to a new and potentially deadly virus. How do you allocate them? Do you: (A) give them to specific groups, such as high-risk populations, or (B) sell them to the highest bidder asked by chris 276. ## French Part 3: Encore des questions: Faites des questions directes avec les phraes de l'activité 10 (from previous part 2 post) 1. ----------- intéresse Paul? Answer: Qu'est-ce qu' 2. ----------- lui est arrivé? Answer: Qu'est-ce qui 3. --------- il a compris? asked by Missy 277. ## college A car accelerates at a rate of 0.6 m/s2. How long does it take for this car to from a speed of 55 mi/h to 60 mi/h? asked by Maggie 278. ## Math 117 The width of a rectangle is 1 ft. less than the length. The area is 12ft.^2. Find the length and width. asked by Sabrina 279. ## algegra what is the volume of each rectangular prism. base area 56 in squared,height 6 in asked by devrick 280. ## Algebra If a computer costs an electronics dealer$300, and she sells them for \$800, what is her rate of profit based on the selling price? I know the answer is 62.5% but could someone show me how to get this answer , thanks

asked by Mark
281. ## English

I need help bad, what exactly am I suppose to write about with this question. I just need to know what this question is asking. Here is the question: “Locate two books or internet sources on the career of Edgar Allen Poe. On the basis of information you

asked by Anonymous
282. ## calc

Consider the function f(x)= x^2+a if x1 a. determine the value(s) of a that will make f(x) continuous at x=0 b. determine the value or values of a that will make f(x) continuous at x=1

asked by Anonymous
283. ## chemistry

When brought to the surface of the moon, will a mass have more or less weight than it did on the surrface of the earth, or will it be the same weight? explain

asked by Anonymous
284. ## math help plz

You receive 80% on your first midterm while your friend receives 70%. Taking into consideration the fact that the first midterm is worth 14% of your overall mark, the difference (between receiving 70% and 80% on your midterm) this could make in your final

asked by May
285. ## math

graph the following function g(x)=|x+5|

asked by Anonymous
286. ## math

I need help with integer expression (3z)exponent2-10

asked by erika 7th
287. ## writing

In APA formate do I have to do (para. 11) or should it be (Para. 11)

asked by lois
288. ## Physics

A ball thrown into the air lands 38 m away 2.4 s later. Find the direction and magnitude of the initial velocity.

asked by Rita
289. ## Microscopes

What is the RESOLVING POWER of a electron and light microscope?

asked by Chris
290. ## algebra

solve for the variable in the equation 3(-2 - 3x) = -9x - 4

asked by teri
291. ## English

In what ways do APA format and style make academic communication hard?

asked by Kerry
292. ## criminal justice

how are ethics and morals related to one another?

asked by llisa
293. ## ecology

What qualities make a great living environment for the isopod ?

asked by Reyan
294. ## Math 117

Find the vertex, line of symmetry, and the max/min value of f(x). Graph the function. f(x)=-3(x+1)^2+3

asked by Sabrina
295. ## chem

is NaCl ion dipole, or Ion Ion? my notes say ion ion but online it says ion dipole. Is NaOH2 hydrogen bond or Ion-Dipole? my class notes say ion dipole but it seems, to me, to be h-bond too.

asked by RiChy
296. ## Math 117

Find and label the vertex and the line of symmetry. Graph the function. f(x)=1/3x^2

asked by Sabrina
297. ## criminal justice

i need someones opinion on this question please. The American criminal justice system is a good one, but far from perfect. Innocent people have gone to prison and guilty ones gone free. How much of the out come of a trial has to do the ethics of the

asked by paula
298. ## math

Explain an error problem in each of the following: a) 13/35=1/5, 27/73 = 2/3, 16/64 = 1/4 b) 4/5+2/3=6/8, 2/5+3/4=5/9, 7/8+1/3=8/11 c) 8 3/8-6 1/4=2 2/4, 5 3/8-2 2/3=3 1/5, 2 2/7-1 1/3=1 1/4 d) 2/3*3=6/9, 1/4*6=6/24, 4/5*2=8/10

asked by Anonymous
299. ## Hospitality

I need to provide an organization chart for a lodging facility, example hotel/resort. I have never worked in a hotel before. Can someone recommend a website for the hilton or some other popular lodging facility organizational chart?

asked by Shon
300. ## social studies

There house will possibly go from democrate to republican. Will this impede progress or make for more progress in the government? What will the influence the tax reform bill?

asked by gaby
301. ## math

how do you write in word form 204,500,040.

asked by leslie
302. ## english essay question please help

Describe the effects of circumstance on character.(include such thing as education, family,race,economic status, social status, clutural background and geographical location).From the story Young Goodman Brown And A&p

asked by mikaliah
303. ## applied maths

a force 'P' acts on a bodyat an angle theta to a horizontal line 'OX'. P,together with a pull of 1.5kn at 30degrees to, and below 'OX', has the same effect as a force of 5kn at 45degrees to and above 'OX'. i'm so confused!

asked by Rob
304. ## social studies

Their house will possibly go from democrate to republican. Will this impede progress or make for more progress in the government? What will influence the tax reform bill? i want both republican and demorcatic view

asked by gaby
305. ## Chemistry

Can someone explain the difference between oxidation and reduction? ALso reducing agent and oxidizing agent?

asked by Natalie Brooks
306. ## Assembly Language

Hello, i am new at assembly language and i just got started with this stuff. I have this assignment which doesn't make any sense to me. Can someone please help? I am using Kip Irvine's, Assembly Language for x86 Processors, 6th edition. These are the

asked by Star
307. ## Precalculus

How do you determine graphically any local and absolute extrema. f(x)=x2+2x-15

asked by Amber Hill
308. ## chemistry

is heat matter

asked by cuffs98
309. ## 9th grade-Social Studies

I am doing a reconstruction project and need specific information about THe Black Codes. What is this or what were these? Who did or did not benefit from it? Thank you

asked by Perri
310. ## Music

I'm learning about Asian music and i have 7 terms, and i have to group them into either folk, classical or popular. The 7 terms are khaen, tai thu, metallophone, piphat, ramayana, Lam sing, and gamelan. Which terms fall into each of the 3 groups. Any help

asked by Jake
311. ## math

find the rate of change thousand dollars month, the rate of change is

asked by Anonymous
312. ## 9th grade

simplify the following fractions by rewriting them in factored form and finding all the "ones" you can....plis help.. 42/60, 16/80, 51/17, 7/33...

asked by miimii
313. ## government

where would I go to find out about campaign ads for a government project? I am stuck

asked by Tinna
314. ## algebra 1

simplify the following fractions by rewriting them in factored form and finding all the "ones" you can....plis help.. 42/60, 16/80, 51/17, 7/33...

asked by bb
315. ## college physics

A 32 kg box sitting on a ramp has a coefficent of 0.21. If the ramp is raised, at what angle will the box begin slipping?

asked by laura
316. ## math

List three real-world situations that involve ratio and proportion.

asked by Anonymous
317. ## Chemistry

Why is it better to use titration rather than just diluting something in some circumstances?

asked by Heather
318. ## Business

After more than 10 years of proposals, revisions, and re-revisions, the National Conference of Commissioners on Uniform State Laws (NCCUSL) at long last voted to adopt the Uniform Computer Information Transactions Act (UCITA) on July 29. Like its better

asked by CYNTHIA
319. ## English

Is this thesis statement too long for a four page essay? Also, are there any major grammatical errors? Although a cursory glance at Odysseus on his long journey home may lead to a conclusion that he is motivated by an overwhelming desire to see his wife

asked by Anonymous
320. ## math

Explain an error problem in each of the following: c) 8 3/8-6 1/4=2 2/4, 5 3/8-2 2/3=3 1/5, 2 2/7-1 1/3=1 1/4

asked by Anonymous
321. ## Music

I'm learning about Asian music and i have 7 terms, and i have to group them into either folk, classical or popular. The 7 terms are khaen, tai thu, metallophone, piphat, ramayana, Lam sing, and gamelan. Which terms fall into each of the 3 groups. Any help

asked by Jake
322. ## English

How do illustrations in books impact our understanding of the characters?

asked by Cathlene
323. ## Science

In metric measurements, what is the meaning of the abbreviations: Dg, Dm and Hm? Why are the first letters written as capitals?

asked by Ronnie
324. ## English

What three questions does an adjective answer

asked by katherine
325. ## math

i am not sure how to to this problem.... X(X+10^-3/4 - (x+1)^1/4 / x^2 the -3/4 and 1/4 are fractions and exponents

asked by Anonymous
326. ## math

101001001001 - 276328769862 = ?

asked by ilmy
327. ## Math

Could someone please check my work on these word problems? My solutions just don't seem right, could you please let me know where I may have messed up. Many people know that the weight of an object varies on different planets, but did you know that the

asked by ASD
328. ## 11th grade

the line with the equation x+y=3 is graphed on the same xy-plane as the parabola with vertex (0,0) and focus (0,3). What is the point of intersection of the two graphs?

asked by edith
329. ## Chemistry

How can beta radiation be stopped by a piece of aluminum foil?

asked by Jennifer
330. ## chemistry

what frequency of radiation in Hz is required to ionise helium?

asked by Anonymous
331. ## Math

unknown number for 1/6h=9

asked by Rhonda
332. ## calculus

Fond the limit of lim x -> 3 [1/(x+4)] - (1/4) _________________ x

asked by Jack
333. ## Physics

A nuclear power plant generates (output) 500 mw. It is 34% efficient. The waste heat going in the Connecticut River with an average flow of 3*10 exp 4 (kg/sec). How much does the water temperature rise?

asked by Aaron
334. ## Ms. Sue please check my answer

People don't buy from local merchants Local people don't have jobs Prices may be higher People aren't self-sufficient What other disadvantages have you thought of? # geography (grade 6) - Ryan, Sunday, September 19, 2010 at 9:55pm interest rate goes up and

asked by Ryan
335. ## algebra

how do you solve f(f(9)) = 4x+6

asked by reed
336. ## chem

is NaCl ion dipole, or Ion Ion? my notes say ion ion but online it says ion dipole. Is NaOH2 hydrogen bond or Ion-Dipole? my class notes say ion dipole but it seems, to me, to be h-bond too.

asked by RiChy
337. ## uop

A firm utilizing FIFO inventory accounting would, in calculating gross profits, assume that

asked by Anonymous
338. ## 4th grade

30,000,000,000x6

asked by shanya
339. ## math

solve the given equation for x x-2/4+x+3/5=5/4

asked by Anonymous
340. ## math

find the domain p(x)=x^2+1

asked by Anonymous
341. ## Business Research for Decision Making

1. Decide on the type of tool or instrument you think would be effective given your topic on if there is no relationship between customer relationship and customer loyalty, explain why this type of tool would be optimal, and point to research which has

asked by Stacey
342. ## science

How many people lived on the north american continent before european settlement?

asked by lauren
343. ## math

Use The Graph To Find The Following A.f(3) B. The Domain, C Any X-values For Which F(x)=2. D. The Range?

asked by Anonymous
344. ## math(please help)

Find the real solutions of each equation. x=2 srqt 6x-36 I do not know where to start.

asked by Hannah
345. ## criminal justice

how do defense attorneys deal with the moral dilemma of representing people they know are guilty?

asked by carter
346. ## Precalculus/Algebra 3

One root of 3x^3-5x^2+2= 0 is 2. Find the remaining roots

asked by Carol
347. ## Math

what is the equation of pi?

asked by mani
348. ## Math

Hello everybody

asked by Jane
349. ## English

Thank you for your last corrections! Can you please check the following summary I prepared on the theme of colonialism in Conrad's "Heart of Darkness"? 1) Conrad presents colonialism not only as a political and an economical enterprise but also as a

asked by Franco
350. ## college UOP

WHAT ARE YOUR VIEWS WITH DIVIDING ATTENTION AMONG A GROUP

asked by kay
351. ## health

You have been appointed by the state you live in to get health care organizations to build systems to share information to improve health care services. Name a way you could encourage organizations to join your effort. What advantages would you present?

asked by samual
352. ## math

3/7-6/7,1/7,-1/2,2/7

asked by davis
353. ## math

1/3+(-5/6)+-1/2=

asked by davis
354. ## English

Can you please check these sentences grammatically? Thank you very much 1) Kurtz was torn between his desire to bring the light of white civilization to Africa and his boundless will-to-power and inordinate pride. 2) In the end, however, Kurtz had the

asked by Franco
355. ## math

determine if a graph is a function

asked by Anonymous
356. ## Biology

In which of the following environments would you be most likely to find non-vascular plants: in desert soil, near the snow line on a mountain, on a sandy ocean beach, or on the forest floor? Give reasons for your answer.

asked by Emily
357. ## college physics

What is the cross product a x b of the two vectors a = 64.00 m directed due east and b = 32.00 m directed 30° north of east?

asked by Angela
358. ## algebra 2

simplify the square root of 18 m to the 9th power

asked by chelsea
359. ## math

if doctor orders 2mg dilaudid and 2.5mg morphine is equal to 0.4mg dilaudid how many mg of morphine would you give?

asked by carlie
360. ## arithmetic

5(y-x)+z i need help

asked by erika 7th
361. ## Math

Factor 3y^2z-5yz-9y^2+30y-25 I can't seem to figure this one out... Give me a step by step answer please and thank you :)

asked by Christian
362. ## science

on myth busters there was a,project "people escaping from jail using real hair,toilet paper,and sheets i need the independent,dependent,and control variable on each

asked by justin
363. ## German

Can somebody please check over my german homework? I really would appreciate somebody checking over what I've written and telling me where and why I may have gone wrong: "Ich höre gern klassische musik, weil ich eine filme über Mozart gesehen habe und

asked by Zainab