# Questions Asked onApril 5, 2012

1. ## algebra

In Chemistry class, Andrew has earned scores of 64, 69, and 73 on three tests. He must maintain an average of 70 to pass the course. What score must Andrew earn on the final exam to pass the course?

2. ## Algebra (Mrs.Sue) thank you :)

Sal keeps quarters,nickels, and dimes in a jar. He has a total of 52 coins. He has three more quarters than dimes and five fewer nickels than dimes. How many dimes does sal have?

3. ## Chemistry 2

Which is reduced in the following reaction: Cr2O72-+6S2O32-+14H+>2Cr3+ + 3S4O62- + 7H20 A. H+ B. Cr6+ C. S4O62- D. S2+ E. O2- I come out with Cr2O72 but that's not an answer so my next one is B. Cr6+ am I correct?

4. ## chem

What mass of ice at 0°C can be melted by the addition of 1670 joules of heat? When the temperature is decreased on the following system at equilibrium: 2 HCl(aq) + Mg(s) MgCl2(aq) + H2(g) + heat a. In order to restore equilibrium, the reaction shifts

5. ## Chemistry 2

Which is the oxidizing agent in the reaction below. Cr2O72- + 6S2O32- +14H+ > 2Cr3+ + 3S4O62- +7H20 A. Cr3+ B. S4O62- C. Cr2O62- D. S2O32- E. H+ I believe it's D or is it C not 100% sure please help. THANKS

6. ## geometry

If ON=2x-3, LM=7x+2, NM=x+6, and OL=6y-3, find the values of x and y for which LMNO must be parallelogram.

7. ## Physics 30

A point charge q=+4.7nC is placed at each corner of an equilateral triangle with sides of 0.21m in length. a) What is the magnitude of the electric field at the midpoint of the three side of the triangle? b) Is the magnitude of the electric field at the

8. ## Chemistry 2

_________is reduced in the following reaction: Cr2O72-+6S2O32-+14H+>2Cr3+ + 3S4O62- + 7H20 A. H+ B. Cr6+ C. S4O62- D. S2+ E. O2- I come out with Cr2O72 but that's not an answer so my next one is B. Cr6+ am I correct?

9. ## micro economics

1) Assume that the gold-mining industry is competitive. a) Illustrate a long-run equilibrium using diagrams for the gold market and for the a representative gold mine. b) Suppose that an increase in jewellery demand induces a a surge for in the demand for

10. ## english

What grammatical structure is the italicized portion of the sentence? Although her personality had not changed at all, Megan looked quite different is it: adverb clause infinitive phrase past participial phrase elliptical clause adjective clause

11. ## Physics 2

The average intensity of light emerging from a polarizing sheet is 0.807 W/m2, and the average intensity of the horizontally polarized light incident on the sheet is 0.972 W/m2. Determine the angle that the transmission axis of the polarizing sheet makes

12. ## Current/Magnetic force

A high voltage power line carries a current of 110 A at a location where the Earth's magnetic fields has a magnitude of 5.9 x 10^-4 T and points north at an angle of72 degrees below the horizontal (toward the earth surface). Find the direction and

13. ## Chemistry

Copper(I) ions in aqueous solution react with NH3(aq) according to: Cu+(aq) + 2NH3(aq) > Cu(NH3)2+ (aq) Kf=6.3x10^10 M^-2 Calculate the solubility (in g·L–1) of CuBr(s) in 0.65 M NH3(aq).

14. ## statistics

Suppose a new treatment for a certain disease is given to a sample of n=200 patients. The treatment was successful for 166 of the patients. Assume these patients are representative of the population of individuals who have this disease. (a) Calculate the

15. ## world history

3. How did the Soviet Union respond to the normalization of relations between China and the United States? (1 point)Brezhnev invited Nixon to visit Moscow. Soviet companies set up a thriving trade with China. The Soviet Union cut off diplomatic relations

16. ## micro economics

Frank owns a soda fountain and sells milkshakes. he sells 50 milkshakes per day for \$5 each. his daily cost is \$290, of which \$30 is fixed cost. what can you say about Franks short run decision regarding shut down and his long run decision regarding exit?

17. ## Finite Math

An urn contains sixteen red balls and seventeen white balls. A sample of three balls is selected at random and the number of red balls observed. Determine the probability distribution for this experiment: Number of Red Balls/Probability 0...Probability=?

18. ## physics

A 650 N student is Rollerblading at a velocity of 7.8 m/s [W] when the student trips and slides horizontally along the trail, coming to a stop 0.95s. Determine the students average acceleration

19. ## math 11

An investment earning simple interest rate of 1.10% per annum for a term of 5 years earned 82.50 in interest. What was the principal?

20. ## physics

a machine gun fires 10 bullets persecond into a target. each bullet weights 20 gm and had a speed of 1500 m per second .find the force neccessary to hold the gun in posotion?

21. ## pre-algebra

Use algebra tiles to find the difference. Let one white tile equal +1 and one black tile equal –1.

22. ## physics

A tug of war has started over a popular toy. One child pulls with a force of 2.0*10^1 N[W], a second child pulls with a force of 15N[N] and a third child pulls with a force of 4.0*10^1 N [30 S of E] calculate the net force on the toy

23. ## chemistry

Question 4-6 refer to : 3Ag(s) + 4HNO3(AQ) = 3AGNO3(aq) + NO(g) + 2h2o(l) 4. How many moles of NO can be produced by the reaction of 54.0g of Ag? 5. How many grams of AgNO3 can be produced by recating completely 88.0g of Ag? 6. State the number of grams of

24. ## physics

A clock has an aluminum pendulum with a period of 1.000 s at 20.3 °C. Suppose the clock is moved to a location where the average temperature is 28.1 °C. (The linear expansion coefficient for aluminum is 2.20 10-5 °C−1.) (a) Determine the new period of

25. ## CHemistry Question

How many liters of chlorine gas at 1.00 atm and 20ºC will be required to oxidize 167 grams of bromide ions to molecular bromine? A. 13.5 L B. 25.1 L C. 101 L D. 1.72 L E. 50.3 L

26. ## math

jack invested \$4000 in two accounts. one pays simple interest at the rate of 5% and the other pays simple interest at the rate of 6%. if jack earned a total of \$224 in interest in the first year, how much did he invest in each account?

27. ## Chemistry

Above what Fe2 concentration will Fe(OH)2 precipitate from a buffer solution that has a pH of 8.03? The Ksp of Fe(OH)2 is 4.87×10-17 M3.

28. ## Algebra 2

I=2V/R+2r Solve for r.

29. ## Physics

A 5.80 kg ball is dropped from a height of 14.5 m above one end of a uniform bar that pivots at its center. The bar has mass 9.00 kg and is 6.40 m in length. At the other end of the bar sits another 5.30 kg ball, unattached to the bar. The dropped ball

30. ## Finite Math

In a carnival game, the player selects two coins from a bag containing four silver dollars and twelve slugs. (a) Write down the probability distribution for the winnings. (b) Determine how much the player would have to pay so that he would break even, on

31. ## trig

Prove: 1/cos2A+sin2A/cos2A=sinA+cosA/cosA-sinA

32. ## PROBABILTY-STATS HELP

A product is assembled from 3 components X,Y,Z and the probability of these components being defective is 0.01, 0.02,0.05. i have to find the probability that the assumed product will not be defective? can someone explain to me, how do it? thanks

33. ## Chemistry

For the balanced reaction 2 Na + 2 H2O -->2 NaOH + H2 how many grams of Hydrogen are produced if 120 g of Sodium are available?

34. ## psychology

What is the relationship between z-scores and percentages?

35. ## Chemistry

What is the pH of a saturated solution of lead(II) hydroxide? The Ksp= 4.0 X 10-15. a) 4.7 b) 7.2 c) 9.0 d) 9.1 e) 9.3 What should I do to solve for this? Thank you

36. ## math

Sal made a map of his neighborhood.According to his map,Sal's house is 6 units away from the grocery store. The grocery store is 5 units away from the coffee shop.The coffee shop is 1 unit from Sal's house.How is this possible?

37. ## Algebra2

The area of a rectangular field is x^2-x-72 m^2. The length of the field is x+8 m. What is the width of the field in meters?

38. ## Math

List the terms without changing the expression. 21x+21y

39. ## disease

Binge Eating Disorder is diagnosed by "experiencing" binge-eating episodes (without purging) more than ---- time)s) per week for --- one,two months two,three months two,six months four, six months

40. ## math

Below is a sample space for a family with 3 children. BGG stands for the oldest child being a boy, the middle child a girl, and the youngest a girl. Use the sample space to answer the question: How many outcomes are in the sample space? Sample Space BBB

41. ## English

Hi, I really need help and I want to do very good on the test! I have to translate poems which are written by Native American writers and which describes their way of life. However, I am having a hard time understanding their meanings and they are a lot.

42. ## math

The Downtown Theater has 1 ticket window. In how many ways can 2 people line up to buy tickets?

43. ## finance

Wheel Industries is considering a three-year expansion project. The project requires an initial investment of \$1.5 million. The project will use straight-line depreciation method. The project has no salvage value. It is estimated that the project will

A horizontal beam of alpha particles are injected with a speed of 1.3x10^5 m/s into a region with a vertical magnetic field of magnitude 0.155T. A- How long does it take for an alpha particle to move half way through a complete circle? B- If the speed of

45. ## Algebra 2

two resistors are connected in parallel. Their resistances are 6 ohms and 10 ohms. What is the resistance, (R), of the combination? R=-----ohms?

46. ## engineering mechanics

An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its moment of inertia is 0.156 kg m2 about its axis of rotation a) calculate the mass of the flywheel b) calculate the flywheel's radius

47. ## MATH

Weekly demand for eggs stocked by Waumini grocers is normally distributed. The mean is 500 trays and standard deviation is 100 trays. How many trays should be available for a week if waumini wants to ensure that the probability of running out of stock does

Find the indicated angle è. (Use either the Law of Sines or the Law of Cosines, as appropriate. Assume a = 95 and c = 137(angle B=38). Round your answer to two decimal places.)

49. ## physics

An object is placed in front of a convex mirror with a 22.6-cm radius of curvature. A virtual image half the size of the object is formed. At what distance is the object from the mirror? Take a positive answer to be in front of the mirror, and a negative

50. ## Physics

A stiff uniform wire of mass M_0 and length L_0 is cut, bent, and the parts soldered together so that it forms a circular wheel having four identical spokes coming out from the center. None of the wire is wasted, and you can neglect the mass of the solder.

51. ## physics

Can a body have a charge of 4.8*10 20 c

52. ## chemistry

a cheetah can run 112 kilometers per hour. Express this speed in mph. round to the nearest mile

53. ## physics

Two spheres with charges of 4.00nC and 3.00nC are placed 0.500m apart. At what point between the two charges must the third charge of 2.00cN be placed so that the net electrostatic force acting on this charge is zero?

54. ## math

Below is a sample space for a family with 3 children. BGG stands for the oldest child being a boy, the middle child a girl, and the youngest a girl. Use the sample space to answer the question:What is the probability (in simplest form) that the middle

55. ## writing skills

the first challenge to the confidence of these amateur renovators come with buying tools or equipment

56. ## chemistry

3Ag(s) + 4HNO3(AQ) = 3AGNO3(aq) + NO(g) + 2h2o(l) How many grams of AgNO3 can be produced by recating completely 88.0g of Ag? please show me the step.. thank you

57. ## Physics

In the hydrogen atom the radius of orbit B is sixteen times greater than the radius of orbit A. The total energy of the electron in orbit A is -0.378 eV. What is the total energy of the electron in orbit B?

58. ## Alebra

For which value of x is the expression 3/x-2 undefined?

59. ## english

What is the gerund phrase and noun function of the gerund in these sentences: 1.Brett earns his income by repairing cars. 2.I enjoy playing the piano. 3.Her favorite pastime is entertaining friends. 4.She is successful in mimicking others' voices. 5.He

60. ## calculus

find the volume of the solid bounded above by the surface z=f(x,y) and below by the plane region R f(x,y)=2x^2 y;R is the region bounded by the graphs of y=x and y=x^2

61. ## Geometry

DKLM is a rhombus. If AM = 4x, AK = 5x-3, and DL = 10, find x.

62. ## psychology

What is concepts of reliability and validity as they pertain to psychological testing? I have a test comming up and I am confused by the concepts of reliability and validity as they pertrain to psychological testing. Can someone explain this to me? thank

63. ## Analyzing Financial Statements

EAT AT MY RESTAURANT-CASH FLOW With this case, we review the cash flow of several restaurant companies. The restaurant companies reviewed and the year-end dates are as follows: 1. Yum Brands, Inc. (December 30, 2008; December 30, 2007) "Through the five

64. ## physics

A truck covers m in 8 s while smoothly slowing down to a final speed of 2.8 m/s. (a) Find its initial speed. (b) Find its acceleration.

65. ## Mechanics for A-level

An object of mass 50kg rests on a rough plane inclined at an angle z to the horizontal. It is supported in this position by a light string parallel to the plane which is attached to the object and fixed to a point at the top of the plane. The string has a

66. ## Physics sph 212

A person takes in a breath of 0 degrees celsius air and holds it until it warms to 37 degrees celsius. The air has an initial volume of 0.700L and a mass of 9.00*10^-4kg. Determine a. the work done by the air on the lungs if the pressure remains constant

67. ## Algebra 2

Find an equation of the ellipse satisfying the given conditions. Center at (-2,3) with major axis of length 8 and parallel to the y axis, minor axis of length 2. I don't understand how you get the formula for this. some help please

68. ## algebra

Participants in a psychology experiment were able to memorize an average of M words in t minutes, where M = −0.001t3 + 0.1t2. Use the following graph.Estimate the number of words memorized after 14 min. m 20 / 18 / 16 / 14 / 12 / 10 / 8 / 6 / 4 /

69. ## Science

Janice found two sea shells when she went to the beach. They appear to be almost the same size, but they have different shapes. How could she figure out if their volume is the same? A)Weigh each one on a scale to see which is heaviest. B)Fill each one with

70. ## physics

If the coefficient of kinetic friction is 0.25 , how much horizontal force is needed to pull each of the following masses along a rough desk at a constant speed? A) 25 kg

Frank owns a soda fountain and sells milkshakes. he sells 50 milkshakes per day for \$5 each. his daily total cost is \$290, of which \$30 is fixed cost. What can you say about Franks short run decision regarding shut down and long run decision regarding

72. ## Physics

A small mass attached to a spring oscillates with simple harmonic motion with amplitude of 70mm,taking 13 seconds to make 40 complete oscillations.Calculate the following showing steps; a.Its angular ferquency b.Its maximum speed c.Its maximum acceleration

73. ## physics

The pressure in each of your car tires is 2.00 105 Pa. The mass of your car is 1610 kg. Assuming that each of your tires bears one-quarter of the total load, what is the contact area of each tire with the road?

74. ## Chemistry

How many moles of C2H2 are produced by 3.5 mol CaC2?

75. ## alg2/trig

If 4x^2+9=kx, what value of k will produce equal roots? the answer is 12 but i don't understand how you get it, please help!

76. ## Pre-Calc Helppp!!!

Find the indicated angle è. (Use either the Law of Sines or the Law of Cosines, as appropriate. Assume a = 110 and c = 136 (angle B=38) Round your answer to two decimal places.)

77. ## math

The sum of the 3 angles of a triangle is 180 degrees. In triangle PQR, the largest angle is twice the size of the smallest angle. The remaining angle is 16 degrees larger than the smallest. Write and solve an equation to find the size of the smallest angle

78. ## Chemistry

1. How many molecules does 36.0 grams of water represent? Change the following masses to number of particles by: A) dividing by the molar mass to get the number of moles, and then B) multiplying number of moles by Avogadros number

79. ## Chemistry

An structural isomer of bromobutane (C4H9Br) can be hydrolysed using aqueous sodium hydroxide to produce butanol. This can be represented by the following equation: C4H9Br(l) + OH-(aq)  C4H9OH(l) + Br-(aq) This reaction was investigated experimentally

80. ## Government

The owner of a clothing factory wants to make more winter coats. According to the law of increasing costs, what will happen next? A. The factory owner will have to give something up to make more costs. OR B. The cost of making winter coats will stay the

81. ## Math

Divide: the reduce to lowest terms 1 4/7 divided by 4/10

82. ## Trig.

Find to the nearest degree, all values of ө less than 360˚ that satisfy the equation 2tan^2θ-2tanθ=3

83. ## math

Factor 21x + 35y

84. ## CHemistry Question (pv=nrt)

How many liters of chlorine gas at 1.00 atm and 20ºC will be required to oxidize 167 grams of bromide ions to molecular bromine? A. 13.5 L B. 25.1 L C. 101 L D. 1.72 L E. 50.3 L

85. ## Chemistry; Acid-Base Equilibrium

You are farming and loving life. You love the smell of ammonia and apply it to your field as a fertilizer. However, you have a pond which you use to water your crops and for your llamas drinking water. The ammonia you spread on your field washes into the

86. ## engineering mechanics

A car is travelling on a banked circular racetrack, Given that the track is banked at an angle of 16degree to the horizontal and the radius of the track is 50 metres and there are no friction forces present a) draw a free body diagram of the car

87. ## HCA322: Health Care Ethics & Medical Law

List and describe the three best and the three worst attributes of Health Care Ethics Committees. Do you agree that the expanding use and power of ethics committees helps foster and ensure ethical standards are upheld in the medical profession? Why or why

88. ## trig

Prove: 1/cos2A+sin2A/cos2A=sinA+cosA/cosA-sinA

89. ## physics

Determine the magnitude of the force of gravity acting on a 340 kg satellite, 850 km above Earth's surface

90. ## math

Which of the following below shows the expression below in simplest form? 2y^2 - 50/y - 5 Is it "C" A. 2(y-5) B. 2(x +50) C. 2(y+5) D. 2(y^2 +5)

91. ## Chemistry 2

A saturated solution of a certain metal(II) chloride has a chloride ion concentration of 0.032M. The Ksp for this compound can be determined to be a) 2.6 X 10-7 b) 4.1 X 10-6 c) 1.6 X 10-5 d) 2.6 X 10-4 e) 1.6 X 10-2 I am unsure how to approach this

92. ## Chemistry; Acid-Base Equilibrium

You are farming and loving life. You love the smell of ammonia and apply it to your field as a fertilizer. However, you have a pond which you use to water your crops and for your llamas drinking water. The ammonia you spread on your field washes into the

93. ## MATH

Assume the aptitude test score are normally distributed; mean is 140 points and standard deviation is 25 points. Within what interval centered at the mean will 95% of the scores lie?

94. ## calculus

find the average value of the function f(x,y)=xe^y over the plane region R is the triangle with vertices (0,0), (1,0) and (1,1)

95. ## math

There are 15 students in Marcelo chess club. There are 2 times as many boys as girls . Howm many girls are in the club?

96. ## trig

simplify cox^2x-cos^4x

97. ## physics

A jet fighter lands on an aircraft carrier. m = 35,000 kg, the force of deceleration is 43,000 N, and the initial velocity is 27 m/s. What distance does it travel during the first 7.5 seconds of deceleration?

98. ## math

A boat in calm seas travels 13km east and 35 km north. Find the distance and direction of the trip, relative to to the north.

99. ## Math 1200

a complex has 205 apartment units. When the rent is \$635 per month all 205 units are occupied.Assume that for each \$75 increase in rent 15 units becomes vacent. Assume that the number of occupied units is a linear function of the rent. Each occupied unit

100. ## chemistry

if 20g of sugar are added to a beaker filled with 200g of water what is the percent composition of the solution ?

101. ## Chemistry

when 0.20 mole HF is dissolved in water to a volume of 1.00 L, 5.8% of the HF dissociates to form F- (aq). What is the equilibrium constant for the reaction ? HF(aq) +H2O(l) ------ F- (aq) +H3O+ (aq)

102. ## Pre Calculus

Determine all discontinuities that exist on the graph of y = f(x) shown below. Please show your reasoning by justifying your answer with the conditions of continuity. If there is a discontinuity, identify it as removable or non-removable.

103. ## math

Megan is standing 12 feet away from a basketball hoop, which is 10 feet in the air. How far is it from Megan's feet to the hoop? Round your answer to the nearest tenth.

104. ## math

if 11% of the population is left handed, what is the porbability that as least one of the first 20 strangers you meet is left handed

105. ## chemistry

If the heat of combustion for a specific compound is -1460.0 kJ/mol and its molar mass is 55.75 g/mol, how many grams of this compound must you burn to release 900.20 kJ of heat?

106. ## psychology

Evaluate effectiveness of goal setting and drive theories in explaining behaviors

107. ## algebra

Coach Willful believes that the best sixth-grade soccer players are 58 inches tall, and he will accept his ideal as players on his team. why does the equation:|58-h|

108. ## trig

if sin2x=3sin2y, find 2tan(x-y)

109. ## science

The global water cycle provides renewable water, but a number of factors affect how much freshwater is available for human consumption. Describe these factors and circumstances. When do human interventions in water availability pose serious problems to

110. ## English

He checked out the books yesterday from the library. (Is this correct? What is the opposite of 'checked out'? Can we use 'checked in' as the opposite?)

111. ## physics

Qualitatively explain how you would expect the kinetic energy to change as a glider slides down an inclined air track, where friction is negligible.

112. ## physical

A block with mass m1 on a plane inclined at angle ƒÑ to the horizontal is connected to a second hanging block with mass m2 by a cord passing over a small, frictionless pulley, as shown. The coefficient of static friction is Us ƒÝ s and the coefficient

113. ## tax - HELP

In which of the following situations would a taxpayer be better off to take the foreign taxes paid as an itemized deduction rather than as a foreign tax credit?

114. ## Maths

Express 175.0cm3 in litres (dm3)

115. ## Algebra 2

I=nE/R+nr Solve for R. Simplify

116. ## english

I'm writing a english paper about A Tale of Two Cities to show why/how the topic of law/corruption/power matters from the way Dickens uses it in the text. I am trying to write my intro, but I am having trouble. All I have so far is an attention-getter, a

117. ## ENG 227

In this assignment, students will analyze two possible career choices, and then write a formal analytical report effectively presenting a recommendation to pursue one of the careers. This project has two parts: Part 1, the Table of Contents and

118. ## trig

If sin A= 1/4 and sin B= -1/2, with A in QII and B in QIV, find tan(A+B)

119. ## physics

Qualitatively explain how you would expect the potential energy to change as a glider slides down an inclined air track, where friction is negligible.

120. ## physics

what relationship do you expect between the change in the kinetic energy and the change in the potential energy?

121. ## Government

If you choose between two summer jobs, what is the one you do not choose called? A. opportunity cost B. decision at the margin OR C. opportunity at the margin

122. ## English

Here is the last part concerning the narrative technique. Thank you. 1) Pamela is (was) written in epistolary form, as a “series of familiar letters” written by the protagonist and some also by her parents. 2) Richardson places himself in the role of

123. ## English

I left out a few sentences. Thank you. 1) Then, the characters introduce one another using letters instead of speech, and the action is made up by a series of scenes with no general summaries. Another feature is its immediacy. 2) As stated by Richardson

124. ## English

for my compare contrast essay i not know how to add hook in introduction i start out like this The short story, " the yellow wallpaper, by gilman and the movie 'a bea utiful mind directed by ron howard be successful in portraying people with mental

125. ## English

i need help with questions of this story please How to Live to Be 200 by Stephen Leacock Twenty years ago I knew a man called Jiggins, who had the Health Habit. He used to take a cold plunge every morning. He said it opened his pores. After it he took a

126. ## calculus

find the volume of the solid bounded above by the surface z=f(x,y) and below by the plane region R f(x,y)= 4-2x-y; R{(x,y)0

127. ## science

a solution is 40% in NAOH. calculate the mole fraction of NAOH if it is an aqoues solution

128. ## math

how many solutions exist for the following system 3x-6y=12 and 2x-4y=7

129. ## CONDITIONAL PROBABILITY

65% of the employees in a firm are graduates and 35% did not receive any graduate trainig. Among the graduates, 40% have an experience of less than 10 years. Similarly, 18% of the non graduate emplyees have an experience of more than 10 years. The first

130. ## physics

Consider a body falling through the air. The force due to air resistance is given by, F(air)=CAv^2, where C is the coefficient of air friction, A is the area facing the direction of the motion, and V is the velocity of the object with respect to the air.

131. ## Math

a motorboat can go 24 miles downstream in the same amount of time that it takes to go 12 miles upstream. The boats speed in still water is 12 mph. What is the speed of the river? mi/hr?

132. ## Algebra 2

A resistor has a resistance of 15 ohms. What size of resistor, (r2), should be connected in parallel with it to obtain a resistance of 7 ohms. Use 1/R=1/r1+1/r2. r2= ohms?

133. ## Chemistry

During the synthesis of Ferrocene, deprotonation of cyclopentadiene is carried out using 1,2-dimethoxyethane (DME). If the deprotonation is carried out using MeOH, will the reaction be faster or slower? Why?

134. ## PHI 103 Informal Logic

Write two arguments in English, one in the form of modus ponens and one in the form of modus tollens. Then, write the arguments in symbols using sentence letters and truth-functional connectives. (If your computer does not have all the symbols needed, use

135. ## social studies

Choosing two famous Americans who lived during the period 1820–1860 Researching the two people you chose Analyzing your research Writing a dialogue between the two famous Americans

136. ## Calculace

Find the derivative of h(x)=7lnx^4 h'(x)=???

137. ## Chemistry

What is the relative formula mass of 2Cu(NO3)2? I could do it if it was just Cu(NO3)2 but I don't know how you deal with the brackets when there is also a big number in front?

138. ## Physics

If the critical frequency of a low-pass filter is 5 kHz, what is the filter bandwidth?

139. ## economics

I am completely stuck on these two questions. I have read my chapter, but I am still doubting that I got the answers correct. 1.A decrease in aggregate demand causes a decrease in ______ only in the short run, but causes a decrease in ______ in both the

140. ## Engineering

A certain OTA with a transconductance of 5000 µS has a load resistance of 10 kÙ. If the input voltage is 100 mV, what is the output current? What is the output voltage?

142. ## Algebra

y-(3y-7)/7 divided by(20/14)+5/2y

143. ## Science

Identify 5 different materials that you encounter or use on a daily basis, and identify a mineral that is mined to supply each of those materials.

144. ## Algebra 2

(1-7) write each function in vertex form (8-10) write each funtion in standard form? 1) Y=x^2+3x-10 2) Y=x^2-9x 3) Y=X^2+x 4) Y=x^2+5x+4 5) Y=4x^2+8x-3 6) Y=(3/4)x^2+9x 7) Y=-2x^2+2x+1 8) Y=(x-3)^2+1 9) Y=2(x-1)^2-3 10)Y=-3(x+4)^2+1

145. ## Trig.

What is the trigonmetric fact for sin 3.14/8?

146. ## healthcare

what ethical issue may arise when caring for someone in palliative care?

147. ## math

If you have 10 orange marbles and 5 blue marbles in a bag how many times will you pick up the orange ones in 60 tries?

148. ## English

1. He bought him a cooking book. 2. He bought him a cookbook. (Which one is correct, 'cooking book' or 'cookbook'?) 3. Who wrote the song to her? 4. Who wrote the song for her? (Do we have to use 'to' or 'for'? Are both OK?)

149. ## french

I am doing a presentation on the efficiency of appliances. I am going to be comparing the past and the present and then France and the US. Do you guys know of any good websites that would talk about any of this. All I can really find is different brands of

150. ## calculus

use a double integral to find the volume of the solid z= 4-x^2 - y^2 y= -2x + 2

151. ## English

1. I especially liked the acting of the main actor and special effects. 2. I especially liked the music and the beautiful scenery in the movie. 3. I especially liked the acting of the main actor and the main actress. 4. I especially liked the roles of the

152. ## American History

In Virginia, colonists who could pay their way across the Atlantic were granted 50 acres of land to lease for a modest rental fee. The term for such an arrangement was called

153. ## Biology

I'm learning about chromatography and photosynthetic pigments. My question is "how can we measure the light absoptive characteristics for a leaf extract?"

154. ## English

i need to fix this sentence "Stop or I'll block you!" the boy yelled. I replace block with deter instead because it be stronger word but teacher say that it not tell her anything but that i just read the definition of deter. i not get what she mean by

155. ## How get caramel in caramilk bar

my sister have this question for biology how they get caramel into caramilk bar? she think the inject it in there, but she want to know how they do it.

156. ## Physics

A particle with a charge of -4.50x 10^-10 C and a mass of 6.6x 10^-18 kg is placed between two oppositely charged parallel plates with a voltage of 9.00x 10^5 V. The particle is injected at the negative plate with an initial speed of zero. What is the

157. ## chemistry

when using the VSEPR Theory what is the shape of a molecule that has two bonded atoms and no lone pairs

158. ## us/101

How do you think collaboration fosters a critical thinking? How might the two work together in your academic and personal life?

159. ## criminology

Hello, I am writing a term paper on Ted Bundy and Danny Rolling and I not sure of some of the answers for the paper. One of the questions is what did the Police do in both case to protect the students during the time of the murder and another question is

160. ## math

suppose you write each letter of your first and last on a separate index card and select one letter from each name without looking.Find the probability of each event.

asked by i dont want to say
161. ## Alcohol in Sports

How you can evaluate the performance of the institutional arrangements of alcohol consumption among student-athletes in intercollegiate sports? What are the pros and cons of this criteria?

162. ## Tech Math 1b

Suppose that a hot air balloon moving due east at a speed of 15 mile per hour (mph) and at a constant altitude of 100 feet passes directly overhead. Thirty seconds later, what is the distance between me and the balloon?

163. ## calc

A____________B 9 miles is between A and B? at 3pm Andy began travelling South at a rate of 4mi/hr from point A at the same time Bill began travelling West at a rate of 5mi/hr from point B to A both stop wlking when Bill reaches point A What time will the

164. ## Chemistry

Given 3.90mL of 1.80M HCl diluted to .520L, whats the pH?

165. ## Chemistry

How many cm3 are there in 1.0 litre?

166. ## physics

what relationship do you expect between the change in the kinetic energy and the change in the potential energy?

167. ## organizational communication

What are some values of other cultures that might enhance organizational cultures, customer service, sales and marketing, and health care?

168. ## 11th grade algebra 2

(1-7) write each function in vertex form (8-10) write each funtion in standard form? 1) Y=x^2+3x-10 2) Y=x^2-9x 3) Y=X^2+x 4) Y=x^2+5x+4 5) Y=4x^2+8x-3 6) Y=(3/4)x^2+9x 7) Y=-2x^2+2x+1 8) Y=(x-3)^2+1 9) Y=2(x-1)^2-3 10)Y=-3(x+4)^2+1

169. ## Chemistry

Given 3.90mL of 1.80M HCl diluted to .520L, whats the pH?

170. ## math

Referring to the figure, think about first picking a card and then rolling the die. Give the probability in simplest form. P(A, 1) = ____ i am confused with this problem.. please help?

171. ## calc

Let f(x)=x^3-3x^2 find the absolute maximum value of f(x) on the interval [1,4]? 22 hours ago - 3 days left to answer

In order to change information from useless facts into information you can absorb and retain, you should do which of the following

173. ## math

Referring to the figure, think about first picking a card and then rolling the die. Give the probability in simplest form. P(A, 1) = ____ the figure has 1 A,2 B, 3 C, and a 6 side cube. i am confused with this problem.. please help?

Will someone please help me with finding three references for the Manovo-Gounda St Floris National Park property?

175. ## Math-alg-calc

x^(-1/7)=(1/2) Please help the example given was x^(-1/7)=(1/5) so that solved x=78,125. but i have no idea what to do thanks!

176. ## Math

What is the difference between the interst on a loan being compounded daily @9% and compounded yearly @ 9%?

177. ## trig

if one of a quadratic equation is 1/2-2i, what is the equation. the other root is 1/2+2I but i don't know how to find the equation

178. ## Math

The first lap of an auto race is 2000 meters. This 5% of the total race distance. What is the total distance?

179. ## government

what are the finical role of state, local, and federal government in education

180. ## math algebra 1

find the possible values of b (7,b),(-1,3); d= 2radical sign7

181. ## SOCIOLOGY

what are the inequalities that exists in family??pls help!!!

182. ## math

csc2x=2cscsecx

183. ## english

can some one help me

184. ## Algebra 2

Solve this formula for r. Simplify your answer. E/d=R+t/r Make sure you use parenthesis around any polynomials in the numerator and or denominator.