# Questions Asked onOctober 28, 2010

1. ## math

this problem confused me. -5/-7x + -1/5x = - 3/5

2. ## chemistry

What volume of 0.0482 M Ba(OH)2 is required to neutralize exactly 16.10 mL of 0.141 M H3PO4? Phosphoric acid contains three acidic hydrogens.

3. ## math

this problem confused me. -5/-7x + -1/5x = - 3/5

4. ## world history

the modern nations that NOW occupy the place where the four rivers vally civllizations

5. ## ethics & law

Can anyone help me locate the code of ethics for the FBI Behavioral Science Unit? I have to tell the code of ethics and list two examples of potential ethical dilemmas and I can't find this information anywhere.

asked by University of Phoenix
6. ## physics

If a man weighs 853.0 N on Earth, what would he weigh on Jupiter where the acceleration due to gravity is 25.4 m/s2?

7. ## math

ok, jai but what is the rule? thanks

8. ## math

In ideal conditions, the kudzu plant can grow at least 1 3/20 ft. Per week. At this rate, how many weeks would it take a kudzu plant to grow 23 ft.?

9. ## algebra 1

a roll of carpet 9 ft wide is 30 ft longer than a roll of carpet 15 ft wide. both rolls have the same area. make a sketch and find the dimensions of each.

10. ## 5th grade math

I'm very confuse how to do this angle i have an triangle up side down lke pizza shape K.50_____50.R Y it look just like letter V with the line on top of it. sorry,I don't know how to connect the line from y to k than y to R. but, i think you get what i'm

11. ## math

- 5/7x = 9/10 does x= 1 13/50 I think I did it wrong

12. ## math

2 1/8k = 7 k= 3 5/17?

13. ## Physics - Specific heat

#1.) If 500 grams of a metal requires 70 calories of energy to raise its temperature by 10 Kelvin, what is its specific heat? #2.) How much heat is gained or lost when 200 grams of ice melts?

14. ## math

Tomas calculates that he will need 86 hours to build a boat. He can work on the boat 8 3/5 hours per week. How many weeks will it taje Tomas to build the boat?

15. ## Chem Help URGENT

Could someone help me with these molecular formulas, i don't know what im doing wrong. For this example, i did it like this and it says its incorrect. Could you solve the the equations below your way and i match it to mines? Thank you so much Fe (s) +

16. ## Chemistry

A 51.46 mL sample of an ammonia solution is analyzed by titration with HCl. The reaction is given below. NH3(aq) + H+(aq) NH4+(aq) It took 38.57 mL of 0.0984 M HCl to titrate (react completely with) the ammonia. What is the concentration of the original

17. ## math(Pre-Calculus)

Evaluate the difference quotient F(x)= (x+h)-f(x) ----------- H A.) f(x)= 3x -1 so far i have done this f(x+h) = 3(x+h)-1 b.) f(x)=2X^2 + 3X i have done this f(x+h)= 2(x+h)+3(x+h) im not sure if my answers are right.. just need some advice if they are

18. ## chemistry

AgI (aq) + NH3 (aq) -->

19. ## mgt 253

need to prepare rations for my own business but simply finding and listing the rations for the industry that your business will be in

20. ## math

asking missing rule? jai... in, rule, out thanks

21. ## chemistry

Hydrochloric acid (68.0 mL of 0.037 M) is added to 249.0 mL of 0.062 M Ba(OH)2 solution. What excess ions are left in the solution?

22. ## chemistry

How many grams of silver chloride can be prepared by the reaction of 122.2 mL of 0.22 M silver nitrate with 122.2 mL of 0.16 M calcium chloride?

23. ## Pharmacology

Could someone please check my answers. Thank you! 1. Patient Stevens has been prescribed Vascotec for hypertension. The purpose of this medication is A. curative; B. palliative; C. diagnostic; D. substitutive Answer D 2. Patient Brown said that she noticed

24. ## chemistry

A 49.45 mL sample of solution containing Fe2+ ions is titrated with a 0.0103 M KMnO4 solution. It required 23.76 mL of KMnO4 solution to oxidize all the Fe2+ ions to Fe3+ by the following reaction. MnO4-(aq) + Fe2+(aq) Mn2+(aq) + Fe3+(aq) (unbalanced) (a)

25. ## chemistry

what is the oxidation half reaction, reduction half reaction, and the complete balanced reaction of the following? (a) Al(s) + MnO4‾(aq) → MnO2(s) + Al(OH)4‾(aq) (b) Cl2(g) → Cl ‾(aq) + ClO ‾(aq) (c) NO2‾(aq) + Al(s) → NH3(g) + AlO2‾(aq)

26. ## Math(pre-Calculus)

Find the standard form of the equation of the circle. 3(x+2)^2 + 3(y-1)^2=18 so i used this formula r^2 = (x+h^)2 + 3(y+k)^2 i just plug in the number but what do i do with the 3's outside of the parenthesis or i have to do something else...

27. ## chemistry

A given mass of gas occupies a volume of 449 mL at 25°C and 740 mmHg. What will be the new volume at STP?

28. ## biology

what is a function of dna polymerase?

29. ## Chemistry

The enthalpy of vaporization of mercury is 59.1 kJ/mol. The normal boiling point of mercury is 357*C. What is the vapor pressure of mercury at 25*C?

30. ## us history

Did the American government’s actions at the turn of the 20th century support the ideals expressed in the Declaration of Independence?

31. ## Chemistry

I need the molecular, ionic and net ionic equations for Potassium carbonate and hydroiodic acid........i'm clueless please help as much as you can!

32. ## MATH

Determine the diameter of the largest circle that can be drawn between the parallel lines y=2x and y=2x-5.

33. ## chemistry

I need the molecular, ionic and net ionic equation for copper (II) acetate and sodium carbonate......help!

34. ## managment

Why do china's economy keeps on chugging?

35. ## managment

Why do china's economy keeps on chugging?

36. ## fundamentals of accounting

discuss the importance and major elements of a work sheet clearly explaining the examples of the main items used in the adjusting process.

37. ## Math.

There are 420 calories in 2 1/4 cans of grape soda. How many calories are in 1 can of soda?

38. ## 3rd math homework

number sense write a subtraction fact using 6 such as 6 - ? = ?. then write an addtion fact you could use to check it. please help! thanks

39. ## 3rd math homework

I need help on one more question please write a fact family with a sum of 17. explain how you picked the addends. thanks so much

40. ## health Ed

please please pleeeeeeeeeeeeeeeeeeeeeeeaaaaaase help! What are the societal influences (economic, education and government policy) that can contribute to a supportive family environment? (Focus on families with adolescents)

41. ## french

What does il ya combien de jours dans le mois de octobre mean in english

42. ## Calculus 1

Calculate f'(-1) f(x) = x^7 * h(x) h(-1) = 5 h'(-1) = 8 Answer is 27, but I got no idea how to get there.

43. ## Chemistry

how much chloride ions does 10.00 mL of .500M BaCl2 have?

asked by Yv ette
44. ## algebra

A shopkeeper is making a triangular sign for his store front, but he must keep the sign under 20 square feet to adhere to the zoning laws. If the base of the sign is 20 feet, what is the maximum height of the triangular sign?

45. ## accounting

i want to know if the transactions are bought machinery for rs50,000, payment made to xyz store by rs10,000 by cheque, purchased office furniture on credit for rs15,000, rs1,000 receieved as a rent for the portion of office building rented out and paid

46. ## Science

I need to describe what a standard operating procedure is and what procedures it may involve. Thankyou.

47. ## math

i am a multiple of 5, i am even and less than 30 but more than 20. my ones digits is 3 more than my tens digits

48. ## math

Square root of x is the equation. Translate: down seven reflected over y axis left five ANSWERS: square root of negitive x+5)-7 negitive square root of x+5)-7 square root of x-5)-7 square root of x+5)+7 IM not getting any of these HELP!!!

49. ## 5th math

is regular polygon has 8 side?

50. ## 5th grade math

list at least one way in which an equilateral triangle and isosceles are different? List at least one way in which an equilateral triangle and a isosceles triangle are the same? thank you!

51. ## English

I just want to know if the following sentences are possible.Thank you very much 1)I have (better: live) in a big family made up of five people. 2) My sister attended this school and ended it last year. 3) My hair is shaved (can you say that?) and brown. I

52. ## Physics

How much heat is gained or lost when 200 grams of ice melts?

53. ## science

if we have 16ml of water its mass would be

54. ## 5th math

can you draw an isosceles triangle that ia not equilateral? draw me sclene triangle ? please !draw me so ,i will get today for my preview .thanks!!!

55. ## spanish

"¿A quién vieron Uds. en el cine?" "____ a la familia García." a. Vemos b. Vimos c. Vamos d. Yo vi B?

56. ## spanish

"¿Qué hora es?" "Son las once _____." a. por el día b. de la tarde c. de la noche d. en media hora C?

57. ## Physics

What is the probability density at the fifth carbon atom if the electron is in the n=2 energy level? I have the formula as follows: Probability density = p5= (2/1.65) sin^2 (4x2pi/11) I know the final answer is 0.69 nm -1. However, I do not know how to

58. ## Math - horizontal asymptote of f(x) (check)

What is the horizontal asymptote of f(x)=x/(x-1)^2 It is supposed to be y=0 but then I even know that b/d is the horizontal asymptote, in this since there is no b, it would be 0/1 which is 0 is the above reasoning correct?

59. ## Math

How do I graph 35-5y=0?

60. ## physics

A 280 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 6.00 m. (a) Find the work done by

61. ## physics

A satellite has a mass of 5950 kg and is in a circular orbit 3.80 105 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.15 106 m. What is the true weight of the satellite when it is at rest on the planet's

62. ## physics

A satellite has a mass of 5950 kg and is in a circular orbit 3.80 10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.15 10^6 m. What is the true weight of the satellite when it is at rest on the

63. ## physics

A person pulls with a force of 40 N on two boxes at rest. The top box is 3.0 kg and the bottom box is 6.0 kg. The coefficient of kinetic friction between the floor and the larger box is .20 and the angle is 30 degrees. a) if the smaller box doesn't slide

64. ## English 1301

I have a 1 paragraph exemplification paper that I would greatly appreciate having proof read. Can anyone help...please?

65. ## Chemistry

what is the percent by volume of 15.0 mL of ethanol in 0.250 L of water?

66. ## math

If the radius of the sphere above is 5 inches, what is the volume of the sphere? (Assume pi = 3.14)

67. ## math

The base in the Sierpinski triangle has 1 white triangle and zero black triangles. The first iteration has 3 white triangles and 1 black triangle. The second iteration has 9 white triangles and 4 black triangles. The third iteration has 27 white triangles

68. ## social studies

Treasury inflation protection bonds pay: fixed interest plus an adjustment for inflation. a return that exceeds twice the inflation rate. fixed interest that exceeds the rate of inflation. a rate that combines the unemployment and inflation indices.

69. ## social studies

To use dollar-cost averaging, an investor must invest: in securities with high average yields. in dollars rather than currencies from outside the U.S. or Canada. a variable amount of money at regular intervals. the same amount of money in stocks regularly.

70. ## physics

On Earth a rock falls an unknown vertical distance from a resting position and lands in a lake. If it takes the rock 2.5 seconds to fall, how high is the cliff that the rock fell from?

71. ## Biology

During the cell cycle, when does mitosis occur?

72. ## Microsoft Excel 2007

I think that I already typed this in, but forgot to click on the submit question button. Could you please provide me with some reference material as to how vertical lookup works? All of the formula fields cause me to become clueless! What are lookup

73. ## physics

A long solenoid ( radius = 1.4 cm) has a current of a 0.34 A in its winding. A long wire carrying a current of 18 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the

74. ## physics

A 280 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 8.00 m.

75. ## calc

Find the area under the curve below from x = 0 to x = 2. Give your answer correct to 3 decimal places. y = 2x - x2

76. ## history

Which statements describe pandemics? 1) confined to a specific geographic area 2) easily spread to new areas 3) highly contagious disease 4) the bubonic plague 5) the common cold i got 2, 3, and 4. would 5 be right too, or no?

77. ## college

x(x+7)=(2x-1)(x+4)

78. ## college

(a+b)x2+(a+2b+c)x+b+c=0

79. ## college

x2-x-1806=0 by completing the square

80. ## finace

16. Which of these three stock would you rather own if you rate of discount is 5%? a. stock that currently earns \$2 per share whose earnings are growing 3% each year. b. stock that currently earns \$1 per chare whose earnings are growing 4% each year. c.

81. ## GCSE history -history teacher if poss

please could someone help me answer this question:- explain why relations between the usa and the Soviet Union grew worse in the years 1943-1956 was it because of what happened at the Yalta and Potsdam conference and the berlin blockade.?

82. ## finace

15. Suppose that the following version of the APT is a good model of rick in the stock market. Consider three factors: the stock market’s excess return in percentage points, the change over the last year in the price of oil in dollars, and the spread

83. ## history

Read a news story about religious conflict somewhere in the world. Do some research to determine the history behind the conflict. i don't need help with the essay, just cant find a good news story. can someone help me find a link for a good story??

84. ## US History

I need to write an essay on this, so can I get some links/ideas to help? 28. How did progressivism affect the role of the federal government in the early 1900s? Thanks -MC

85. ## physics

A 3.00 102 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 8.00 m. a) Find the work done

86. ## physics

A 280 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 8.00 m. (a) Find the work done by

3x2+x+1=0

88. ## math

the ratio of horseshoes to shamrock was 11 to 2, and five times the number of shamrocks was 3 less than the number of horseshoes. how many were shamrocks?

asked by darnell darling
89. ## adult education

In a survey of adults throughout the Caribbean, 75% strongly support Caribbean integration.24 adults was selected,throughout the Caribbean, and ask if they strongly support Caribbean. How do i know the condition for a binomial distribution are met?

90. ## Englsih, Sonnets

Can someone help me with Sidney Sonnet 31 and 39 questions? The sonnets are at the bottom if you need them. 1. The unifying theme of Sidney's Sonnets 31 and 39 is... a. natural beauty b. hopeless love c. relief from pain d. endless suffering 2. Which of

91. ## Microeconomics

Suppose thatsome firms in a perfectly competitive industry are incurring negative economic profits. In the long run, the a industry supply curve will not shift b. industry supply curve will shift to the left c. number of firms in the industry will not

92. ## Physics

If 500 grams of a metal requires 70 calories of energy to raise its temperature by 10 Kelvin, what is its specific heat?

93. ## math

Debbie had a total of twenty-five nickels and dimes. If the value of the coins was \$1.75, how many of each coin did she have?

asked by darnell darling
94. ## college

how much enery is necessary to heat 1.0kg of water from room temperature to the boiling point?

95. ## math

Suppose that C is the number of chirps a cricket makes every 15 seconds. Using the formular C = T - 40, A. How many chirps does the cricket do at 70 degrees fahrenheit? B. What is the temperature if the cricket chirps 40 times in 1 minute? The number of

96. ## sculpture

she wants me to Compare the ancient monument of Stonehenge in England to the modern sculpture made by David Smith called “Cubi Series.” Conduct a brief internet search on each of these to learn more about them and then answer compare and contrast

97. ## English

Dear teachers ... please read this paragraph .i know it if full of error but plz help me. I particularly liked Erasmus view that people should not care if other humans hiss at them as long as they applaud themselves. I love the idea that it is a good to

98. ## math

Find three consecutive odd integers such that twice the sum of the first and second is one less than three times the third.

asked by darnell darling
99. ## calculus

find the absolute maximum and minimum values of f on the given interval f(x)= (x^2-4)/(x^2+4), [-4, 4]

100. ## college physics

Find the height from which you would have to drop a ball so that it would have a speed of 8.4 m/s just before it hits the ground.

101. ## calculus

prove that the function f(x) = (x^101)+(x^51)+x+1 has neither a local maximum nor a local minimum

102. ## math

Two 7-sided polygons are similar. A side of the larger polygon is 6 times as long as the corresponding side of the smaller polygon. What is the ratio of the area of the larger polygon to the area of the smaller polygon?

asked by darnell darling
103. ## physical science

Suppose an unknown substance has a melting temperature of 1,200 degrees Celsius and a density of 16.7 g/cm3. However, the different individual atoms that make up the element have very different melting temperatures and densities. The unknown substance is

104. ## Math Help Please

An oil refinery is located on the north bank of a straight river that is 2 km wide. A pipeline is to be constructed from the refinery to storage tanks located on the south bank of the river 6 km east of the refinery. The cost of laying pipe is \$400,000 per

105. ## math

multiply: (2x^4y^2)^3 (4x^2y)^2 Is this right? 128x^11y^8 Not sure.

106. ## economics

3 . The production of housing has the following form: H = number of housing units = 4(L + 10)1/2 + 80 (M + 3)3/4, where L is land and M is materials. One unit of L costs 100 and 1 unit of M costs 12. Find the cheapest ways to produce 1000 housing units,

107. ## geometry

triangle fgh is an obtuse triangle. the greatest angle in the triangle has a measure of (6d)degres.what are the posible values of "d". show problem

108. ## physics

Vector A is given by A = c x + 6 y, and vector B is given by B = 4.8 x - 16.2 y, where x and y are the x and y unit vectors. What does c need to be such that these two vectors are perpendicular?

109. ## Algebra

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: C(g) = (3.5)g a) Find C(2) b) Find C(5)

110. ## Statistics

In a survey of adults throughout the caribbean 75% strongly support Caribbean integration. You randomly select 24 adults, throughout the Caribbean, and ask each if they strongly support Caribbean integration. What is the probability that at most 15 adults

111. ## Chemistry

Calculate the pH of a solution that is 0.060 M in potassium propionate(C2H5COOK or KC3H5O2) and 0.085 M in propionic acid (C2H5COOH or HC3H5O2)

112. ## poetry part 1

during the romantics period, poets places ar emphasis on a) order b) nature c) discipline d) hierurchi

113. ## Psychology

When conducting reach what are some of the ethical concerns that must be addressed?

asked by Gwendolyn Towns
114. ## Psychology

You have decided to use the case study method to investigate a mother's experience in raising a child with autism.What is an advantage of the case study method?What is a disadvantage of the case study method?

asked by Gwendolyn Towns
115. ## Psychology

You are conducting research on sex differences in emails.Your hypothesis is that men use more declarative statements and women use more questions.What might be the advantages of using the archival method?What migt be the disadvantages of using archival

asked by Gwendolyn Towns
116. ## Psychology

Now imagine that you are conducting research on the length of time it takes customers to select items in a grocery store.Assume that your hypothesis is that people will spend more time deciding on more expensive items than on ceaper items.What might be te

asked by Gwendolyn Towns
117. ## Psychology

You ave decided to conduct a survey on whether a given political candidate will be popular with Latino voters.What is an advantage of the survey method?What is a disadvantage of the survey method?

asked by Gwendolyn Towns
118. ## latin

what does this mean in latin Hodie viis ad Europam ambulamus

119. ## math

A tangram is a geometric puzzle made from seven pieces that form a square. Trace the pieces, cut them out, and answer the following questions. The puzzle can also be seen on wikipedia web site. a. If the area of the entire square equals 1 unit, label each

120. ## history

How many countries are under Communism

121. ## physics

A ball whose mass is 0.3 kg hits the floor with a speed of 7 m/s and rebounds upward with a speed of 5 m/s. If the ball was in contact with the floor for 0.5 ms (0.5multiply10-3 s), what was the average magnitude of the force exerted on the ball by the

122. ## economics

The cost function for an enterprise has the following form: TC = 10L + 20K The production function has the form: 4 ln L + 10 K 1/2 a. Derive the mathematical forms of the marginal and average products of capital and labor. How is the marginal product of

123. ## Chemistry 2 ap

How much heat energy is produced when 31.6 grams of propane are burned? I asked my teacher and she said it would be a stochiometry problem but im still confuded:/

124. ## physics

A vector is 100 units long and makes an angle of 50 degrees with the positive x-axis. find the x and y components of this vector.

125. ## Stats

The unemployment rate in a city is 9%. Find the probability that at least 2 out of 8 people from this city sampled at random are unemployed.

126. ## Accounting

Jan. 1 Merchandise inventory \$144,200 Jan. 1–Feb. 7 Purchases (net) 40,000 Jan. 1–Feb. 7 Sales (net) 70,000 Estimated gross profit rate 40% Estimated merchandise inventory destroyed:

127. ## statistics-normal distribution

a set of data is normally distributed with a mean of 500 and a standard deviation of 100. a) what would the standard score fora score of 700 be? b) what % of scores is between 500 and 700? c) what would the percentile rank for a score of 700?

asked by mary- can someone please solve,lost
128. ## statistics-normal approximation, distrubution

find the normal appproximation for the binomial probabiolity the x=5,where n=12, and p= 0.7. compare this to the value of p(x=5). *please show calculations and work. want to compare my calculations. thank you. mary

asked by mary- can someone please solve,lost
129. ## physics

When you suddenly stand up after lying down for a while, your body may not compensate quickly enough for the pressure changes and you might feel dizzy for a moment. (a) If the gauge pressure of the blood at your heart is 15.61 kPa and your body doesn't

130. ## calculus

Suppose that 430 ft of fencing is used to enclose a corral in the shape of a rectangle with a semicircle whose diameter is a side of the rectangle. (In the figure below, the blue outline represents the fencing.) Find the dimensions of the corral with

asked by Help asap!! plz
131. ## Pre cal

Find the exact value of Sin ( sin-1. 9/41 - cos-1 (-5/13)

132. ## College Chemistry

How fast must a 138 g baseball travel in order to have a de Broglie wavelength that is equal to that of an x-ray photon with = 100. pm?

asked by HELP !
133. ## calculus

A box is constructed out of two different types of metal. The metal for the top and bottom, which are both square, costs \$2/ft2. The metal for the four rectangular sides costs \$3/ft2. Find the dimensions that minimize cost if the box has a volume 20 ft3.

asked by Hard help plz
134. ## chem

How many grams of chlorine gas are present in a 150. liter cylinder of chlorine held at a pressure of 1.00 atm and 0.0 °C?

135. ## physics

Two runners approaching each other on a straight track have constant speeds as shown, while they are 100m apart. How long will it take for the runners to meet if they maintain their respective speeds? one runner is running 4.5m/s while the other is 3.5m/s

136. ## Physics

A house painter is standing on a uniform, horizontal platform that is held in equilibrium by two cables attached to supports on the roof. The painter has a mass of 75 kg and the mass of the platform is 20.0 kg. The distance from the left end of the

137. ## physics

A worker pushed a 34.0-kg block 10.0 m along a level floor at a constant speed with a force directed 39.0° below the horizontal. If the coefficient of kinetic friction is 0.20, how much work did the worker do on the block?

138. ## small business management

what's the best way to find out if a particular business is a good fit for you

139. ## physicsss

A Thompson’s gazelle can reach a speed of 13 m/s in 3.0 s. A lion can reach a speed of 9.5 m/s in 1.0 s. A trout can reach a speed of 2.8 m/s in 0.12 s. Which animal has the greatest acceleration?

140. ## physics

A highway is to be built between two towns, one of which lies 24.0 km south and 76.0 km west of the other. What is the shortest length of highway that can be built between the two towns, and at what angle would this highway be directed?

141. ## com156

what sources could i use on the internet renting an apartment is better than buying a home

142. ## Physics

Sam is taking his girlfriend Sally out for a ride in his boat. He starts out at rest. He accelerates with an acceleration of 0.263 m/s^2 for 92.1 s. At that time Sally decides they are going fast enough and the boat moves at constant speed for a distance

143. ## elementary

1.)Measurement of a television if it is approx. 18.5 inches high and just over 26 inches wide, How should the size be advertised in a store, rounding to the nearest whole number? 2.)A TV store owner wanted to make a shelf to display television sets. How

144. ## college

In warm climates, drinking water is often cooled by evaporating water from the surfaces of clay pots or canvas bags. How many liters of water may be cooled from 37 ºC to 24 ºC by the evaporation of 100 g of water? The heat of vaporization of water is 2.4

asked by Abiola Ajibola
145. ## physics

A motorboat traveling on a straight course slows down uniformly from 75km/h to 40km/h in a distance of 50m. What is the boat’s acceleration?

146. ## math

William Bennett earns \$12,800 per year. He is paid 12 times per year and claims 1 exemption. His state taxes him at a 3% rate. How much tax is withheld per pay period?

147. ## physics

Please Help. I am not sure how to set up or do this problem. Thanks A car is traveling along a road, and its engine is turning over with an angular velocity of +199 rad/s. The driver steps on the accelerator, and in a time of 14.2 s the angular velocity

148. ## Chemistry

A 35.0 mL sample of 0.150 M acetic acid is titrated with 0.150 M NaOH solution. Calculate the pH after the following volumes of base have been added: a) 0mL, b) 17.5 mL, c) 34.5 mL, d) 35 mL I've figured out a,b, and c. But at 35 mL the moles become equal

149. ## English

Can you please check if the following sentences are possible? Thank you very much in advance. 1)I attend the first year of a high school with an emphasis on science. My school is very big and is located in a two-storeyed building. The headmaster is very

150. ## physics

A motorboat traveling on a straight course slows down uniformly from 75km/h to 40km/h in a distance of 50m. What is the boat’s acceleration?

151. ## PHYSICS

A fan blade is rotating with a constant angular acceleration of +13.7 rad/s2. At what point on the blade, as measured from the axis of rotation, does the magnitude of the tangential acceleration equal that of the acceleration due to gravity?

152. ## math

Employee's Earnings statement Name: Martin Fischer Earnings Regular Pay- \$225.86 Overtime pay- \$88.90 Gross Pay-\$314.76 Total Deductions-\$107.95 Net Pay-\$206.81 Taxes Withheld Federal State Local FICA Other \$48.20 \$6.88 \$4.55 \$23.64 \$0.00 Personal

153. ## science

if cerium has 1.12 electrons than how many neutron and protons does it have

154. ## Economics

What is the name given to the price set below the equilibrium point by the government?

155. ## ALgebra

sam has \$3.50 in dimes and quarters. he has 23 quarters all together. how many of each does he have? will has \$2.40 in dimes and nickels. he has 30 coins all together. how many of each does he have?

156. ## algebra

nicole has \$2.20 in nickels and quarters. she has 16 coins all together. how many of each does she have? chris has \$3.20 in dimes and quarters. he has 17 all together. how many of each does he have?

if i were to buy stocks in Canada, what company should i buy it for?

158. ## Math

On Friday, a house is haunted by a combined total of 51 ghosts, goblins and ghouls, and there were 1/2 as many ghosts as there were goblins. On Saturday, 2/3 of the ghouls each became a ghost. On Sunday, 11 of the ghosts each became a goblin, and the ratio

159. ## us history

Write a well-organized essay analyzing the effectiveness of propaganda in a World War I poster. Remember that you will be graded on content, organization, and mechanics (grammar, spelling, punctuation, and sentence structure). Be sure to include the

asked by rosalie danenberg
160. ## math

If 507 square centimeters of material is available to make a box with a square base and an open top, find the largest possible volume of the box.

161. ## math

find the minimum, maximum,range,median,mean,mode for the hours of television watched per week 1 to 8 student and 10 to 30 hours per week?

162. ## physics

In a tennis serve, a .074 kg ball can be accelerated from rest to 40 m/s over a distance of 0.79 m.Find the magnitude of the average force exerted by the racket on the ball during the serve.

163. ## algebra

Ifthe formula R = -0.037t + 50.1 can be used to predict the world record in the 400 meter dash t years after 1925, for what years will the world records be 48.1 seconds or less?

A satellite has a mass of 5850 kg and is in a circular orbit 4.50 x 10^5 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.20 x 10^6 m. What is the true weight of the satellite when it is at rest on the

165. ## Help, Physics

A 3.00*10^2 N force is pulling an 80.0 kg refrigerator across a horizontal surface. The force acts at an angle of 18.0° above the surface. The coefficient of kinetic friction is 0.200, and the refrigerator moves a distance of 8.00 m. (a) Find the work

166. ## *tough* Microsoft Excel 2007-not Writeacher again

Could you please provide me with some reference material as to how vertical lookup works? All of the formula fields cause me to become clueless! What are lookup values, table arrays, column index numbers, and range lookups? As for what Writeacher proposed,

167. ## math

a rectangle is defined by the vertices A(-6,5), B(12,-1), C(8,-13), and D(-10,-7). prove that the diagonals are equal in length

168. ## algebra1

Lisa wants to purchase calculators. At one store, she can buy a set of 5 calculators for \$80.00, or she can buy 24 calculators for \$264.00 at another store. a) Which store provides Lisa with a better buy? b) Is it possible that there could be a

asked by rosalie danenberg
169. ## math

show that triangle PQR with P(-2,10, Q(1,5) and R(5,2) is isosceles.

170. ## chemistry

A 2.000g sample of silver alloy was dissolved in nitric acid and then precipitated as AgBr. After drying, the sample of silver bromide weighed 2.000g. Calculate the percentage of silver in the alloy.

171. ## chemistry

Zn is less active than Mg. Write the equations describing what occurs when ou mix: a)Zn with 0.5M magnesium chloride, MgCl2 b)Mg with 0.5M ZnCl2

172. ## English

I forgot to include the following few sentences. I really hope you can have a look at them, too. Thank you very much. 1) In the summer I go on boat trips with my mum to see the whales and the dolphins. I keep a diary in which I include information about

173. ## Essay help?

Could somebody help me start off this essay? CD= Concrete detail ( Facts) Commentary, ( Opinnion, but since this is a essay on religion, facts can go here) I don't know how to start.. :) Heres what I've done so far: oi55.tinypic( DOT) com/11azxnk.jpg

174. ## math

Ian multiplied a number by 5. He then multiplied that product by 2. What digit is in the ones place of the final product

175. ## pre algerbra

question: write the expression for a number used as a factor seventeen times being multiplied by the same number used as a factor fourteen times.then write the product as one power?

176. ## us history

my question is on north americans mirgation it says explain one way that mirgration affects us today? then my next question says give one cause and effact of the mirgration of the frist americans?

177. ## Physics: Focal length why is my answer wrong?

An old refracting telescope in a museum is 44.0 cm long and the caption states that the telescope magnifies images by a factor of 29.0. Assuming these numbers are for viewing an object an infinite distance away with minimum eyestrain, what is the focal

178. ## College Algebra

find th quadratic fuction that has a vertix of (8.-3) and whose graph goest throught the point (-6, -395)

179. ## College Algebra

find th quadratic fuction that has a vertix of (8.-3) and whose graph goest throught the point (-6, -395)

180. ## HCR/230

What are the basic elements of an effective medical office financial policy? In what ways do medical office procedures support financial policies? What are the consequences when office procedures do not support the financial policy? What recommendations,

181. ## biology

7. If the baking soda had not been added, would there still have been a source of carbon dioxide being introduced into the water? Explain.

asked by rosalie danenberg
182. ## math

If i need 2-1/4 cups of flour for 12 people then how much do i need for 10 people?

183. ## Algebra

1/5(a-2)-2/5(a-3)>2a-1/3(4+5a)

184. ## EDU310

When considering the separation of church and state, what influence do churches have on the character education that is taught in school today.

185. ## biology

Data Table: Rate of Photosynthesis Trial # Number of Bubbles/Minute 1 2 3 4 5 6 7 8 9 10 Trial 1 1 4 6 9 10 12 13 15 18 20 Trial 2 3 7 11 14 16 20 25 28 32 35 Making a Graph 2. In the space below, make a line graph showing the data from both trials

asked by rosalie danenberg
186. ## HCA/220

Hello, I am working on an assignment and I am stuck. Was wondering if you can help? This assignment states: determine the primary function of the following system components. Then states Function- What is the type of muscle movement involved with each

187. ## math

find the points to the curve y=(cos x)/ (2 + sin x) at which the tangent is horizontal... can you explain how get the answer thoroughly and step by step...

188. ## biology

3. Write a conclusion for the following question: What is the effect of temperature on the rate of photosynthesis?

asked by rosalie danenberg
189. ## math

tony is making flower arrangements. he is using 3 different kinds of flowers-roses, daisies, and tulips. each arrangement will have the same number of each kind of flower. he figures that if he uses all the flowers, the greatest number of arrangements he

190. ## physics

A ball of mass .15 kg and a radius of .24 m is at the top of a 3.5 m tall hill with a 25 degree incline. What is the velocity of the ball as it reaches the bottom of the hill if it (a) rolls without slipping? (b)slips without rolling?

191. ## intermaidate math

A chef is using a mixture of two brands of Italian dressing. The first brand contains 7% vinegar, and the second brand contains 11% vinegar. The chef wants to make 280 milliliters of a dressing that is 10% vinegar. How much of each brand should she use?

192. ## Physics/Force

building a device to shoote a plastic hockey puck with a lever (think pinball) attached to a bungie cord. How much force is needed to propel a plasic hockey puck 30 feet or 40 feet or 50 feet - what formula should I use? Can I calculate the force by how

193. ## chemistry

write chemical equations for the reactions when you put each Al, Fe, Cu in 0.5M Al2(SO4)3

194. ## englsih

Expanding the Canon . . . tends to drive out the better writers, sometimes even the best, because pragmatically none of us (whoever we are) ever had time to read absolutely everything . . . inadequate authors will consume the energies that would be better

195. ## ELA

What would be a wise qoute about sleepovers???

196. ## math

(Y+3)^2/5+4(Y+3)^7/5=0 solve this equation by factoring. I don't know how to factor problems like this

197. ## algebra

Can someone PLEASE explain how to do this to me? Thank you so much! Ten gallons of a 30% acid mixture is obtained by mixing a 50% solution (X) with 20% solution (Y). Write an equation for the 10 gallon mixture. What is the acid concentration, in gallons,

198. ## math

A chef is using a mixture of two brands of Italian dressing. The first brand contains 7% vinegar, and the second brand contains 11% vinegar. The chef wants to make 280 milliliters of a dressing that is 10% vinegar. How much of each brand should she use?

199. ## math

I HAVE TWO QUESTIONS: I HAVE TO MULTIPLY AND SIMPLIFY AND I HAVE NO CLUE HERE ARE THE PROBLEMS: 1. 7a-21a^2/9a^2+6a+1 x 9a^2+6a+1/9a^2-1 2. 2a+2/8a+24 x 4x+12/2x^2-2

200. ## math

Suppose that someone said that the equation connecting points (-1, 1) and (2, 3) is y=2/3x+ 5/3. This person wants to know whether the line represented by this equation will contain point (6, 9). Identify two ways by which this person can decide whether

201. ## Physics

How much force would need to be exerted on a merry-go-round with a mass of 178 kg and a radius of 2.4 m to make the speed of a child sitting on the edge 1.5 m/s within 5 seconds having started from rest?

202. ## Chemistry

6. Heat of combustion is the heat released by the complete combustion of one mole of a substance.- T? 7. Catalysts are not consumed during a reaction.- F 8. In nature, processes tend to occur that lead to a higher energy state.- F 9. Concentration does not

203. ## Science

I am trying to built a cross section of a beam. I need a strong light wood, that would give the best efficiency. A force of 1500lb is going to be applied on it. So i have to make sure it wont break. What is the best choice of wood beam, and also what kind

a set of data is normally distributed with a mean of 500 and a standard deviation of 100. a) what would the standard score fora score of 700 be? b) what % of scores is between 500 and 700? c) what would the percentile rank for a score of 700 *please show

205. ## physics

A box accidentally falls from the back of a truck and hits the groud with a speed of 15m/s forward. It slides along the groud with uniform acceleration for a distance of 45m before coming to rest. Determine the time it takes to slide the last 10m.

206. ## Physics

a plane at an altitude of 625 m is traveling at 95 m/s and drops a care package in inhabitants of a remote island in the south pacific. a) how long will it take the package to hit the ground? b)how far before the target should the pilot release the

207. ## Algebra HELP

(3((3x-1)/(x+3)) - 1) / (((3x-1)/(x+3)) + 3) What would the answer be? I already found the answer but I just want to check.

208. ## physics

A 180 kg block is pulled at a constant speed of 8.3 m/s across a horizontal floor by an applied force of 135 N directed 15° above the horizontal. What is the rate at which the force does work on the block?

209. ## literature

What is next when Tituba had gone with Abby and the girls in the forest?

asked by thomas chatmas
210. ## English

Were all the alternatives possible? Can you please tell me if everthing was OK? Thank you for your invaluable help. 1) In the summer I go on boat trips with my mum to see the whales and the dolphins. I keep a diary in which I include information about

211. ## Science

Explain how adding or removing energy affects particles motion?

212. ## Chemistry

Compare and Contrast the motion of particles in a solid , liquid and gas?

213. ## Science

Compare and contrast the particle arrangement (density) of a solid, liquid and gas?

214. ## 12th grade (physics)

a car with bad shock absorbers bounces up and down with a period of 0.731s after hitting a bump. The car has a mass of 1850kg and is supported by four springs of equal force constant k. Determine a value for k. Answer in units of N/m. if you can, could you

215. ## EDU310

How do good teachers model good character in the classroom.

216. ## 4th grade

What property of multiplication helped solve 1X47=47?

217. ## social studies

I need some information on Ghana from 300 to 1500 A.D.

218. ## Management

what economic, social , and political forces have made employee traininng even mor eimportant today than in the past?

219. ## Math

Which of the following is NOT a real number? (Please explain why!) (1) -1 (I already ruled out this answers because integers can be real numbers) (2) square root of 3 (3)square root of -3 (4)0.101001000100001...

220. ## algebra

A car rental company has two rental rates. Rate 1 is \$63 per day plus \$0.18 per mile. Rate 2 is \$126 per day plus \$0.09 per mile. If you plan to rent for one week, how many miles would you need to drive to pay less by taking Rate 2?

221. ## 6 grade rounding

7.528+6.075 rounding to ones

222. ## health

Which of the following is true about HIV testing? A. Testing isn't normally necessary as HIV symptoms manifest early and are distinctive. B. A positive HIV test result doesn't require follow-up tests, due to the high accuracy of the testing. C. Some HIV

223. ## 7th grade

I have a science essay on the rainforest due tommorow. Need help fast!!!!

224. ## Science :)

A football is kicked from the ground at 27 m/s at an angle of 42 degrees above the horizontal (ground). No one gets in the way until after it hits the ground. Use the value g=9.8 m/s^2. Assuming that the ground is level and that there is negligible air

225. ## algebra

when you solve a system of equations by the substitution method, how do you determine whether the system of equations is dependent?

226. ## english

Essay help, Thanks for ur help! What are the differences of unjustice and justice and how are they comparable and uncomparable? Thanks!

227. ## algebra

in simpleast form, 2x(4x^2-5)-(7x^3 +3x)

228. ## physics

A block of mass 2 kg is propelled by a spring with spring constant k=5200N/m onto a smooth (frictionless) track. The spring is initially compressed a distance of 0.13 m from its equilibrium configuration. At the end of the track there is a rough inclined

229. ## health

When HIPPA requires authorization to disclose information, the authorization must A. conform to the releases customarily used by that particular health care provider. B. conform to releases customarily used in that state. C. include all identifying

230. ## Algebra

The average mark on a test in an algebra class is 80. If the two lowest scores of 34 and 48 are not counted, the remaining scores would average 83. How many students are in the algebra class?

231. ## biochemistry

What amino acids have no chiral atoms?

232. ## english

I picked topic which is Abuse and the history of the word which is misuse. Please tell me ways to write about this word and what can i compare it to. I have to write the meaning of the word, including its history. Thanks for helping me.

233. ## physics

A 1.5 spider is dangling at the end of a silk thread. You can make the spider bounce up and down on the thread by tapping lightly on his feet with a pencil. You soon discover that you can give the spider the largest amplitude on his little bungee cord if

234. ## english

"He manages to portray tiny, random events as significant without the occasionally overblown melodrama . . . " so im suppose to Read the quote and choose its category. but i don't no what to do? these are my answer choices.. -universality -subject matter

235. ## Science

Constract a heating/cooling curve from an MSDS, draw multistep energy bar charts that correspond to the curve, and calculate the total. Energy released/ absorbed

236. ## social studies

new england colonies 2. what? what happend to the coloonists at roanoke? what happend to the colony at sagadaco? 5. where? where was roanke? where was sagadahoc? where was james feild?

237. ## Math

8 divided by 4-2+5 divided by 3+10 divided by 24 divided by 2+10-16 divided by 2 =0 Put brackets around numbers to make sentance true.

238. ## social studies

What was the biggest obstacle to building the transcontinental railroad?

239. ## social studies

How did physical geography make human suffering during the Great Depression?

240. ## math

I have 28 marbles in all. Red,Blue, Green. 8 of them are blue. I have 3 times as many red marbles than green marbles. How many are red ?

241. ## social studies

Does technology make it more or less likely that the U.S. will return to it's old policy of not taking part in world affairs?

242. ## physics

A ball is thrown horizontally, with a speed of 20 m/s from the top of a 6.2 m tall hill. How far from the point on the ground directly below the launch point does the ball strike the ground?

243. ## Physics

A motor cyclist traveling at 30 m/s accelerates uniformly for 5 seconds to v= 40 m/!@#\$%^&hen maintains a constant velocity for the next 4 minutes. How far did the motor cyclist travel throughout the entire motion?

244. ## physics

A ball is thrown horizontally, with a speed of 20 m/s from the top of a 6.2 m tall hill. How far from the point on the ground directly below the launch point does the ball strike the ground?

245. ## Calculus

What is y' of y=(x-1)^(1/2)/(x-3)^(1/2)?

246. ## algebra

6 burgers and 3 hot dogs cost \$27. 5 burgers and one hot dog cost \$18.75. what is the price of a hot dog? what is the price of a hamburger?

247. ## Math

The side of a square is 10 meters longer than the side of an equilateral triangle. The perimeter of the sqaure is 3 times the perimeter of the triangle. Find the length of each side of the triangle.

248. ## Math

A girl earns \$6.00 an hour when she works Monday through Friday and \$9.00 an hour on Saturday. Last week, her salary was \$273 for 42 hours of work. How many hours did she work on Saturday?

249. ## Chemistry

A 14.5-L tank is filled with H2 to a pressure of 2.00 102 atm. How many balloons (each 2.00 L) can be inflated to a pressure of 1.00 atm from the tank? Assume that there is no temperature change and that the tank cannot be emptied below 1.00 atm pressure.

250. ## Calculus

evaluate the lim as x heads towards infinity of (sinhx)/ (e^x)

251. ## spring- physics

A 2.0-kg box rests on a plank that is inclined at an angle of 65 degrees above the horizontal. The upper end of the box is attached to a spring with a force constant of 400 N/m. If the coefficient of static friction between the box and the plank is 0.22,

252. ## maths

find the limit of lim sin(x-1)/(x^2 + x - 2) x->1

253. ## psychology

Psychologists are interested in people's behavior and their mental processes. Psychologists believe that: behavior is impacted by environment, but not by a person's physical state. behavior is affected by a person's mental and physical state, but rarely by

254. ## tops

math-what is tops ...2nd grade

255. ## algebra

Use the method of substitution to solve the system. xy=1 4x-y+3=0

256. ## Math

what if I solved a function and I ended up getting 1/0 would I leave it as 1 or 0?

257. ## science

I have a discussion question on describe the plant life animal life and geology of the ecosystem in batesville, mississippi and I have search and can not come up with anything Can you help me

258. ## physics

Consider a frictionless track as shown in the figure below. A block of mass m1 = 5.95 kg is released from A. It makes a head on elastic collision at B with a block of mass m2 = 10.0 kg that is initially at rest. Calculate the maximum height to which m1

259. ## Literature/The Crucible

Because proctor did not know the 6th commandment, then what happen?

260. ## Physics

The captain sinks a ship located x distance away with a cannon located on the top of a cliff that is 65m high. if the cannon ball has a velocity of 55m/s and the captain sinks the ship, how far was the ship from the base of the cliff. I got 731.5 meters.

261. ## Social Studies- Jekyll Island

Please help me. I can't find the answers anywhere! 1. When was the motel, now the Jekyll Island 4-h Center built? 2. What famous family had a home in Jekyll? 3. In which town is the university that oversees the 4-h center located in Georgia? I would be

262. ## english

what do you need to do to make the dream a realistic goal ... is it mean what you have to do to achieve the dream???

263. ## Physics

A father racing his son has one-third the kinetic energy of the son, who has two-fifths the mass of the father. The father speeds up by 2.5 m/s and then has the same kinetic energy as the son.

264. ## Chemistry

What is the balanced equation of the complete combustion of 2-methylpropane?

265. ## geometry

What is an equation of the line that passes through (-3,6)and is parallel to the line with the given equation: y=-x-5

266. ## math

people are attending a sold out concert there. thirty minutes before it starts 15,000 people are there.how many people have not arrived yrt?

267. ## algebra

4(x+3)-2(2)=1.5x+25.5

268. ## Dc history

The Eaton affair is generally seen as a symptom, not a cause, which would indicate that the real division between the two men was much deeper

269. ## geometry

The perimeter of a triangle is equal to 12 inches. The length of the longest side is equal to the sum of the other two sides minus 2. If you add 2 to the shortest side, it will equal the longest side. Find the side lengths.

270. ## 3rd grade

can you write 3+5+6 =14 in a multiplication sentence?

271. ## Algebra

Boat travels 10 mi upstream and 10 mi downstream the stream is moving 1mph and the boat took 5 1/3hrs. What is the speed of boat if the stream still?

272. ## science

What mass of carbon dioxide is produced from the complete combustion of 5.20×10−3 of methane?

273. ## Math

If I have to "evaluate" the equation and the remaining answer is x^(4) + 2x^(2) + x (this was just an example) to evaluate would I factor it if I could (for any problem)?

274. ## chemistry 110

what combinations of Zn, Al, ZnSO4 and Al2(SO4)3 would you make to illustrate that Zn is less active than Al?

find the normal approximation for the binomial probability that x=5,where n=12, and p=0.7compare probability to table b of normal distributions of table 2. The only thing that i know so far is that p(x=5) is equivalent to 0.29. how would i complete this

276. ## math

x/4+2x/3+x/6=1/2

277. ## US History 1877

What group benefitted from war between Great Britain and France in 1803

278. ## exponents math

evaluate (-1)^3= evaluate -1^3= evaluate (-1)^2= evaluate -1^2=

279. ## Chemistry

6. Heat of combustion is the heat released by the complete combustion of one mole of a substance.- T? 7. Catalysts are not consumed during a reaction.- F 8. In nature, processes tend to occur that lead to a higher energy state.- F 9. Concentration does not

280. ## fraction

10 3/5 x 20/25

281. ## Chemistry

how do arrangement of particles changes during a phase change

282. ## research

what is the theoretical framework in Dance and Movement Program improves quality of life measures in breast cancer survivors by susan sandel

283. ## college physics

Q. A 10.6 kg weather rocket generates a thrust of 226.0 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 402.0 N/m, is anchored to the ground. Initially, before the engne is

284. ## research college

please explain what does theoretical framwork means?

285. ## Calc

Find dy/dx by implicit differentiation. y^5 + x^2y^3 = 1 + x^4y So, first I find the derivative: 5y^4 + 2x3y^2 = 4x^3(1) Now I find dy/dx: But this is where I don't know what to do? Please Help.

286. ## college Physics

Q. A force F = (3.99xi + 2.86yj) N acts on an object as it moves in the x direction from the origin to x = 4.45 m. Calculate the work done on the object by the force. Attemp: since we only consider x direction i multiplied 3.99 by 4.45 but it didn't work

287. ## physics

A textbook is 23cm long, 18cm wide and 4cm deep and its mass is 1.8 kg. Find the work required to accelerate it from rest to an angular speed of 2.75 rad/s spinning about the: -length axis -width axis -depth axis

288. ## English

I am trying to figure out transitive or intransitive.... It is related to wheat, oats and barley. related = intransitive? The stems measure a foot in diameter. measures - transitive? Engineers strengthen concrete with it. Intransitive?

289. ## Religions of the world

What is the nature of God in Confucianism?

290. ## World History

Can you write a thesis and introduction paragraph for this question/statement: Discuss how the lives of the peoples of the ancient world were shaped by the geography of their region. Thanks A lot :)

291. ## math percentage

1/5 of 8300 2/3 of 10,599

292. ## chem/math

I need to fid the activation energy but i forgot how to solve for Ea 4.58*10^-15=e^(Ea/2537.02) can you show the work thank you

293. ## common denominator and solve equation

x/4 + 2x/3 + x/6 = 1/2

294. ## English: Vocab

when using the word "inveigh" -can I put to "inveigh" against (something) is the word against used in the right context

295. ## maths

find the limit of lim sin(x-1)/(x^2 + x - 2) x->1 without using l'hopitals rule

296. ## maths

find a and b such that lim (square root ax + b) - 2/ x = 3 x->0

297. ## geometry

Find the area enclosed by the figure where a = 15 ft, b = 45 ft, c = 20 ft, d = 75 ft, and f = 40 ft.

298. ## maths

find the lim (cos x-1)/ (sin 2x) x->0

299. ## math percentage

2/3 out of 10,599

300. ## chemistry

Draw all possible structures of an organic compound with 6 carbon atoms that has a 4 carbon chain

What are some authentic details of magazines? That would be price, captions, cover... What else?

302. ## chemistry

What is the concentration of 10g of NaOH dizzolved in 0.95 L of water?

303. ## how come no one is helping on physics questions!!!

every physics helpers are not getting any responses. can someone help on physics questions pleases???

304. ## Math

Boat travels 10 mi upstream and 10 mi downstream the stream is moving 1mph and the boat took 5 1/3hrs. What is the speed of boat if the stream still? I need help ASAP!!!! PLEASE!!!

305. ## Chemistry

Calculate the approximate concentration of 41 mL of 6 M diluted to about 0.95 L of water?

306. ## chemistry

making ice cream involves surrounding the ice cream canister with a bath of salt ice water. to get the mix of freeze at 7.00 C,how many grams of salt (NaCl;molar mass = 58) will you need to add to 3.5 kg of ice water bath? (Kf of water = 1.86C/m)

307. ## physics

A luge and its rider, with a total mass of 84 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 41 m/s. Assume that they stop with a constant deceleration of 3.5 m/s2. (a) What magnitude F is required for the

308. ## Physics

1. A force F = (3.99xi + 2.86yj) N acts on an object as it moves in the x direction from the origin to x = 4.45 m. Calculate the work done on the object by the force. Attemp: since we only consider x direction i multiplied 3.99 by 4.45 but it didn't work

309. ## Physics

How fast must a 138 g baseball travel in order to have a de Broglie wavelength that is equal to that of an x-ray photon with A = 100. pm?

310. ## chemistry

what is the balanced equation for the complete combustion of each of the following: hexane, methylcyclohexane, cyclopentane and 2-dimethylpropane

311. ## english literatue

the title of the story"Roman Fever' is an example of a. symbol b.an allegory c.verbal irony d.situational irony

312. ## Physics

How long would it take for the Earth to complete a full turn if a person at 49.6° northern geographical latitude floats apparently weightlessly across the room? Use REarth = 6,384 km for the radius of Earth.

313. ## Math

When // lines are cut by a transversal, the corresponding angles are supplementary. true or false ? explain, thanks !

314. ## Math

when // lines are cut by a transveral, alternate exterior angles are congruent. true of false ? Explain please.

315. ## math

54.1 meters to feet round two decimals places

316. ## Physics

A solid disk is released from rest and rolls without slipping down an inclined plane that makes an angle of 25.0° with the horizontal. What is the speed of the disk after it has rolled 3.00 m, measured along the plane?

317. ## Kennard Dale

Estimate what the value of G would need to be if you could actually "feel" yourself gravitationally attracted to someone near you. Assume that each person has a mass of 72 kg, the force of attraction is F = 4 N, and the distance of separation is 0.5 m.

318. ## chemistry

what is the punctuation of molar mass

319. ## physics

A 550-g ball traveling at 8.0 m/s undergoes a head-on elastic collision with a 250-g ball traveling toward it also at 8.0 m/s. What is the speed of the 250-g mass after the collision?

320. ## Physics

Calculate the force of gravity on a spacecraft 19200 km (3 earth radii) above the Earth's surface if its mass is 1600 kg. I've done all the work but I can't seem to get the right answer, please show work and answer.

321. ## math

1.5 gal/min = ____ qt/h

322. ## Biology

When living cells break down food molecules, energy is A)stored as a phosphate group added to ADP. B)stored as ATP. C)released as heat. D)all of the above

323. ## Physics

A block is sent up a frictionless ramp along which an x axis extends upward. The figure below gives the kinetic energy of the block as a function of position x; the scale of the figure's vertical axis is set by Ks = 46.0 J. If the block's initial speed is

324. ## Find the limit

Find the limit. lim t+2/t-5 t-->5-

325. ## Physics-bobpursley can u check this again please

Q. A 10.6 kg weather rocket generates a thrust of 226.0 N. The rocket, pointing upward, is clamped to the top of a vertical spring. The bottom of the spring, whose spring constant is 402.0 N/m, is anchored to the ground. Initially, before the engne is

326. ## Physics

Calculate the force of gravity on a spacecraft 19200 km (3 earth radii) above the Earth's surface if its mass is 1600 kg. I know that 1/16 of Fg is the answer but I can't seem to find out what the Fg is.

327. ## Physics

Calculate the force of gravity on a spacecraft 19200 km (3 earth radii) above the Earth's surface if its mass is 1600 kg. I know that 1/16 of Fg is the answer but I can't seem to find out what the Fg is.

328. ## cant post a question

i tried posting a question but it says that i cant have links in my question but i didn't have any? Anyone know hat to do?

329. ## Chemistry

If 10. g AgNO3 is available, what volume of 0.25M AgNO3 solution can be prepared?

330. ## Physics

A 13 cm long animal tendon was found to stretch 3.8 mm by a force of 13 N. The tendon was approximately round with an average diameter of 9.0 mm. Calculate the elastic modulus of this tendon.

331. ## Calculus

why does ln(1/x)= -1/x ?

332. ## Physics I

Bill kicks a rock off the top of his apartment building. It strikes a window across the street 18m away. The acceleration of gravity is 9.8 m/s sqaured. If the window is 12 m below the position where bill contacted the rock, how long was it in the air?

333. ## Physics

Because gasoline is less dense than water, drums containing gasoline will float in water. Suppose a 220- L steel drum is completely full of gasoline. What total volume of steel can be used in making the drum if the gasoline-filled drum is to float in fresh

334. ## Find the limit

Compute lim f(2+h)-f(2) h->0 --------- h

335. ## calculus

The volume of a melting cube is decreasing at a rate of 10cm^3/min. How fast is the surface area of the ice cube decreasing when the length of an edge is 30 cm?

336. ## chemistry

0.058 moles of NH3 weighs how much grams?

337. ## chemistry

1.25 g of HClO3 is _________ moles of molecules?

338. ## 5th grade math

Ms.John's lass took a timed test. What was the minimum and maximum ? 8.5 9.2 7.1 7.03 9.04 8.09 Which is NOT a way of writing 15,43,202? A. 15 million,482 thousand,203 B.fifteen million,four hundred eighty' C.10,000,000+5,000,000+400,000+80,000+' D.15

339. ## chemistry

1.25 g of HClo3 has_____________ molecules (how many) ?

340. ## Physics

How long would it take for the Earth to complete a full turn if a person at 32.6° northern geographical latitude floats apparently weightlessly across the room? Use REarth = 6,384 km for the radius of Earth.

341. ## physics

A satellite orbits at an average altitude of h = 441 km. What is its orbital speed? Use REarth = 6370 km and mEarth = 5.98 x 1024 kg.

342. ## calc

1 + x = sin(xy^2) find dy/dx by implicit differentiation 0 + 1 = cos(xy^2). (x)(2y)dy/dx + (y^2)(1) 1/((x)(2y)dy/dx) = cos(xy^2) + (y^2) dy/dx = cos (xy^2) + (y^2).... Can I just divide out the (x)(2y) and leave the dy/dx?

343. ## us history

what beliefs did native Americans think where important

344. ## Science

BP -164°C ΔHvap 8.136 kJ/mol sg 2.205 J/g°C MP -182°C ΔHfus 0.928 kJ/mol sl 2.41 J/g°C Using the data above for methane, CH4, calculate the heat needed to convert 150. g of liquid methane at -175°C to a gas at 25°C.

345. ## poetry

Can somebody list some poems that is considered as a "Poetry Survivor" (a best poem that relates to the TV show "Survivor"

346. ## Physics

Two children are riding on a merry-go-round. Child A is at a greater distance from the axis of rotation than child B. Which child has the larger angular speed?

347. ## Calc

At noon, ship A is 30 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 15 knots. How fast (in knots) is the distance between the ships changing at 7 PM? (Note: 1 knot is a speed of 1 nautical mile per

348. ## Calc

Gravel is being dumped from a conveyor belt at a rate of 10 ft^3/min. It forms a pile in the shape of a right circular cone whose base diameter and height are always the same. How fast is the height of the pile increasing when the pile is 23 feet high?

349. ## Calc

A spherical snowball is melting in such a way that its diameter is decreasing at rate of 0.4 cm/min. At what rate is the volume of the snowball decreasing when the diameter is 10 cm. (The answer is a positive number).

350. ## Calc

At noon, ship A is 50 nautical miles due west of ship B. Ship A is sailing west at 20 knots and ship B is sailing north at 20 knots. How fast (in knots) is the distance between the ships changing at 4 PM?

351. ## Calc

Water is leaking out of an inverted conical tank at a rate of 5800 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 8 meters and the diameter at the top is 6.5 meters. If the water

352. ## Calc

A hemisphere of radius 5 sits on a horizontal plane. A cylinder stands with its axis vertical, the center of its base at the center of the sphere, and its top circular rim touching the hemisphere. Find the radius and height of the cylinder of maximum

353. ## Calc

A box has a bottom with one edge 3 times as long as the other. If the box has no top and the volume is fixed at V, what dimensions minimize the surface area?

354. ## Calc

A wire 9 meters long is cut into two pieces. One piece is bent into a square for a frame for a stained glass ornament, while the other piece is bent into a circle for a TV antenna. To reduce storage space, where should the wire be cut to minimize the total

355. ## math

20 fl oz/min = ____ qt/day

356. ## math

20 fl oz/min = ____ qt/day

357. ## math

20 fl oz/min = ____ qt/day

358. ## algebra

36x^2 - 49y^2 divided by 6x + 7y meaning 36x^2 - 49y^2 is on top and 6x + 7y is on bottom. Please help, my teacher nor course book covers when there are different variables

359. ## math

in the diagram, lime m is parallel to line p, line t is a transversal, m

360. ## physics

What force is required to accelerate a 90kg bike to 20 m/s in 15 sec? I need to know HOW to do it!

361. ## physics

With acceleration of 2500 m/s2, how long will it take to rreach speed of light

362. ## math hw

20 fl oz/min = ___ qt/dat