# Questions Asked onApril 7, 2010

1. ## Chem

In photosynthesis, plants form glucose and oxygen from carbon dioxide and water. 6CO_2+6H_2O --> C_6H_12_O_6+6O_2 a) Calculate deltaH rxn at 15 degree C b) Calculate deltaS rxn at 15 c) Calculate deltaG rxn at 15 thanks!

This is the 2nd body paragraph for my Romeo and Juliet essay about fate. Can you please read over it and please give me your opinion and any advice on how to make it better. Throughout the play, the characters have mentioned fate and fortune numerous times

3. ## 11th grade Algebra 2

At a college bookstore, Carla purchased a math textbook and a novel thjat cost a total of \$54, not including tax. If the price if the math textbook, m, is \$8 more than 3 times the price of the novel, n, write a system of linear equations that could be used

4. ## 11th grade Algebra 2

Some students want to order shirts with their school logo. One company charges \$9.65 per shirt a setup fee of \$43. Another company charges \$8.40 per shirt plus a \$58 fee. For what number of shirts would the cost be the same?

5. ## math 157

Assume that a researcher randomly selects 14 newborn babies and counts the number of girls selected, x. The probabilities corresponding to the 14 possible values of x are summarized in the given table. Answer the question using the table.

6. ## English-Friendship Poem

What are Friends For-by rosellen brown What are friends for, my mother asks. A duty undone, visit missed, casserole unbaked for sick Jane. Someone has just made her bitter. Nothing. They are for nothing, friends, I think. All they do in the end-they touch

7. ## earth science

Select all of the answers that apply. Some rules to remember when reading topographic maps are _____. 1)the elevations of contour lines must always be whole number multiples of the contour interval. 2)the thin line separating two different rock units is a

8. ## Chemistry

Is it possible to distinguish two spots that have the same Rf value but represent different compounds? Give two different methods

9. ## math

An airplane flies from Ft. Myers to Sarasota, a distance of 150 miles, and then turns through an angle of 50° and flies to Orlando, a distance of 100 miles (see the figure). (a) How far is it from Ft. Myers to Orlando? (b) Through what angle should the

10. ## Calc II

Carbon-14 has a half-life of 5700 years. The charcoal from a tree killed in the volcanic eruption that formed Crater Lake in Oregon contained 59.5% of the carbon-14 found in living matter. Approximate the age of Crater Lake.

11. ## Chemistry

A stoppered flask at 25 C contains 250 mL water, 200 mL octanol, and 50 mL of air. An unknown mass of o-xylene is added to the flask and allowed to partition among the phases. After equilibrium has been established, 5.0 mg of o-xylene are measured in the

12. ## math

what is 150 divided by 2

13. ## physics

In the figure below, a constant horizontal force !@#\$%^&p of magnitude 18 N is applied to a wheel of mass 12 kg and radius 0.50 m. The wheel rolls smoothly on the horizontal surface, and the acceleration of its center of mass has magnitude 0.50 m/s2. What

14. ## Physics

In the ideal apparatus shown in the diagram, m1 = 2.0 kg. What is m2 if both masses are at rest? How about if both masses are moving at constant velocity? Ideal aparatus is a pulley system with M1 on a 37 degree incline and m2 dangle on the other side of

15. ## Goverment

How is government authority distributed in unitary, federal, and confederal systems?

16. ## Science-Experiment-Questions

I did an experiment on a burning candle, and I need help with some of the questions. Thank you very much in return. Please no websites.--more information would be appreciated, thanks:-) I'll list everything of what we went through. Materials: -1 standard

17. ## Geography

Select all of the answers that apply. A map _____. 1)is a representation of the earth's surface 2)is a portable document describing an area 3)can provide data such as migration trends, directions, and rock composition 4)provides all of the information

18. ## math

A rule of thumb used by car dealers is that the trade-in value of a car decreases by 30% each year. That is, the value at the end of any year is 70% of its value at the beginning of the year A.Suppose that you own a car whose trade-in value is presently

19. ## Chemistry

Trying to name this compound and figure out its oxidation state [ CoBr2(NH3)3(H2O) ]+ I came up with triammineaquadibromocobalt(II) ion with a +3 oxidation state...but not sure if this is right... similarily for [Fe(ox)(Cl)4]3- I came up with

20. ## Chemistry

"For which of the following equations is the value of delta H equivalent to the bond enthalpy for the carbon-oxygen bond in carbon monoxide? A. CO(g)-> C(g) + O(g) B. CO(g)-> C(s) + O(g) C. CO(g)-> C(s) + 1/2 O2(g) d. CO(g)-> C(g) + 1/2 O2 (g)" I'm

21. ## Chemistry

The reaction rate triples when the temperature increases from 15 to 35 degree C. What is the activation energy?

22. ## math

noel and renaldo want to rent bikes with two other friends. they have \$150 to spend on bike rentals. bike rentals rent 1 bike for 9.75 per hour. special group rate for group of 4 or more, save \$3.00 per person. 4(9.75h-3)=150 noel says they have enough

23. ## English

What do you think Keats means in these lines from "When I Have Fears That I May Cease to Be"? I may never live to trace / Their shadows, with the magic hand of chance . . . * I may never live to paint pictures of them. * I may never have a chance to look

24. ## math

if albert baked 60 cookies and gave 7/12 away how many cookies does he have left

25. ## Chemistry

It has been proposed that wood alcohol, CH3OH, a relatively inexpensive fuel to produce, be decomposed to produce methane. Methane is a natural gas, commonly used for heating homes. is a decomposition from wood alcohol to methane and oxygen

26. ## English

Which kind of ode is "Ode on a Grecian Urn"? (1 point) * Pindaric * Horatian * irregular * devotional

27. ## micro economics

Why might a profitable motel shut down in the long run if the land on which it is located becomes extremely valuable due to surrounding economic development?

28. ## chem

i need help while mercury is very useful in barometers, mercury vapor is toxic. given that mercury has Hvapp=56.9kj/mol and its normal boiling point is 356.7C calculate the vapor pressure mm Hg at room temperature, 25c

29. ## Chemistry

Calculate the solubility of silver iodide in a 1.0 M sodium cyanide solution. Ksp = 8.5 x 10^-17 for AgI Kform = 2.5 x 10^5 for Ag(CN)2

30. ## English

For Keats in "Ode on a Grecian Urn," the lovers pictured on the urn symbolize his * eternal youth and hope. * maturation and full fruition. * despair and frustrated desire. * deep satisfaction and fulfillment.

31. ## algebra

Each letter of the alphabet is written on a separate piece of paper and placed in a box. Find the probability of drawing a vowel, {a, e, i, o, u}, or a letter in the word segment

32. ## math

Show 1/4 of a set of 8 counters. How many counters is that?

33. ## math

which equation is equivalent to 5x-2(7x+1)=14x? why? a -9x-2=14x b -9xt1=14x c -9x+2=14x d 12x-1=14x

34. ## Paragraph

Paragraph Imagine you are an elected official with the responsibility of drafting legislation designed to protect our environment. What items will you include in your bill? Who will be responsible for the bill's implementation? Its enforcement

35. ## Chemistry

An analytical chemist determines that an estuarine water sample contains 1.5 g/L of sulfate ion. What is the concentration in terms of (a) g/L of S (b) molar concentration of sulfate (c) normality (d) parts per million of sulfate

36. ## Science

Two bumper cars collide and then move away from each other. How do the forces the bumper cars exert on each other compare?

37. ## Geography

Imagine you are an elected official with the responsibility of drafting legislation designed to protect our environment. What items will you include in your bill? Who will be responsible for the bill's implementation? Its enforcement?

38. ## Precalc

Find the smallest positive answer to the equation: sin(2x)=1

39. ## college,stats/ PLZ HELP:( need it within nxt 6hrs

Among Canadian households, 24% have telephone answering machines. If a telemarketing company contacts 2500 households find the probability that between 625 and 650 households, inclusive, have answering machines.

40. ## Earth Science

Select all of the answers that apply. A map _____. 1)is a representation of the earth's surface 2)is a portable document describing an area 3)can provide data such as migration trends, directions, and rock composition 4)provides all of the information

41. ## Chem

In photosynthesis, plants form glucose and oxygen from carbon dioxide and water. 6CO_2+6H_2O --> C_6H_12_O_6+6O_2 a) Calculate deltaH rxn at 15 degree C b) Calculate deltaS rxn at 15 c) Calculate deltaG rxn at 15 thanks!

42. ## math

the ratio of strings to woodwind instruments in a baroque orchestra is 5:3. if there are 24 instruments in total, how many stringed instruments are there in the orchestra?

43. ## phYsics

Consider three charged particles placed along the x-axis. The particle with q1 = 9.27 nC is at x = 7.66 m and q2 = 4.82 nC is at x = 2.64 m. Where must a positive charge, q3, be placed such that the resultant force on it is zero? I know F3= F13+ F23 (net

44. ## physics

A satellite moves in a circular orbit around Earth at a speed of 4390 m/s. (a) Determine the satellite's altitude above the surface of Earth. m (b) Determine the period of the satellite's orbit. h am I supposed to use rotational equations for this? I don't

45. ## chemistry

What is the pH of a solution prepared by dissolving 8.40 g of aniline hydrochloride C6H5NH3Cl in 750 mL of 0.210 M aniline,C6H5NH2? i kno to use the ph = pka + log (base/acid). getting pka isnt the issue, but what do i put into the log (base/acid)?

46. ## MATH

Consider the experiment of rolling a single die. Find the probability of the event described.What is P(number showing is not odd)?

47. ## English

Which line best paraphrases the excerpt from "Ode on a Grecian Urn"? Ah, happy, happy boughs! that cannot shed Your leaves, nor ever bid the Spring adieu . . . (1 point) * Happy branches, that will never see the spring again . . . * Happy branches, you

48. ## MATH-CALC

3.A ruptured oil tanker causes a circular oil slick on the surface of the ocean. When its radius is 150 meters, the radius of the slick is expanding at 0.1 m/min, and its thickness is .02 m. At that moment: a. How fast is the area of the slick expanding?

49. ## micro economics

What kinds of costs are involved in making a decision to shut down?

50. ## math

A 120-foot long rope is cut into 3 pieces. the first rope is twice as long as the second piece of rope. the third piece of rope is three times aS LONG AS THE SECOND PIECE OF ROPE. WHAT IS THE LENGTH OF THE LONGEST PIECE OF ROPE? a 20 feet b 40 feet c 60

51. ## AP BIO

If a particular experiment were known to have a transformation efficiency of 3 x 103 bacteria/ìg of DNA, how many transformant colonies would be expected to grow on the LB/amp/ara plate?

52. ## CHemistry

The half-life of tritium is approximately 12 years. What will be the molar ratio of tritium to helium-3 in a sealed sampel after 25 years?

53. ## Linear Algebra

a) Show that if A has a row of zeros and B is any matrix for which AB is defined, then AB also has a row of zeros.

54. ## English-Friendship Poem

I've read through this friendship poem, and now I need help with some of the questions. Here is this frienship poem: If you don't come-by marguerite mack The sun will get smaller and smaller and the grass won't green or the trees leaf and there will be no

55. ## chemistry lab titration

10.0 mL aliquot of 0.100M Na3AsO4 is titrated with 0.100M HCl. pKa1=2.25 pKa2=6.77 pKa3=11.60 Sketch the titration graph by calculating the pH at 0mL, 5mL, 10mL, 15mL, 20mL, 25mL, 30mL, 40mL of HCl.

56. ## English

Which is the best paraphrase of this excerpt from "On First Looking into Chapman's Homer"? . . . all his men / Looked at each other with a wild surmise—/ Silent . . . (1 point) * All his men looked at one another in silent surprise. * All his men looked

57. ## U.S history

what are 3 things that were or could of been, seen as "clouds in the blue skies of prosperity"?

58. ## Math

10 multiple choice questions each with three possible answers only one of which is correct. A student guesses the answer to every question. (a)What is the probability that the student will answer the first six questions correctly and the rest incorrectly?

59. ## economics

The small town of Middling experiences a sudden doubling of the birth rate. After three years, the birth rate returns to normal. Use a diagram to illustrate the effect of these events on the following.

60. ## Chemistry

In a reaction, 39.5 g of chromium(III) oxide reacts with 14.0 g of aluminum to produce chromium and aluminum oxide. If 27.0 g of chromium is produced, what mass of aluminum oxide is produced? I don't know where to begin. Do I put this into a chemical

61. ## math

The average cost per item, C, in dollars, of manufacturing a quantity q of cell phones is given by C= (a/q) + b where a and b are positive constants a.Find the rate of change of C as q increases. What are its units? b. Currently, 5000 phones are being made

62. ## Social Studies

Can someone help me with this question? A) With the emergence of urban cities came the need for a distinct city government, including the role of the boss. B) What were the positives and negatives of having a boss in the city government? C)Do you think the

63. ## Math

A king couldn't sleep so, he devoured 1/6 of a bowl of mangoes. Later, the queen got hungry and took 1/5 of the bowl of mangoes. The prince awoke and ate 1/4 of the bowl of mangoes. After, he came back and ate another 1/3. Obviously, he was hungry and ate

64. ## Chemistry

[6 points] You need to make a solution of Ca(NO3)2 for a class demonstration. First, you measure a quantity of the solid Ca(NO3)2 by weighing the reagent container before obtaining the sample (4.2540 ± 0.0003 g) and after taking some reagent (3.9440 ±

A number pattern with the rule 6n, where n represents the position of the number in the pattern. What are the first five numbers of the pattern?

66. ## Technology~bobpursley

25. Briefly explain the difference between product design and system design. 25. There are a few differences between system design and product design. System design deals with the arrangement of components to produce a desired result. For example,

67. ## chemistry

a 150ml sample of wetlands water requires 25.00 mL of a 0.0250 MH2SO4 solution for neutralization. Calculate the molarity of CaCO3 in the sample

68. ## math

the ratio of strings to woodwind instruments in a baroque orchestra is 5:3. if there are 24 instruments in total, how many stringed instruments are there in the orchestra?

69. ## math

11. Runner A crosses the starting line of a marathon and runs at an average pace of 5.6 miles per hour. Half an hour later, Runner B crosses the starting line and runs at an average rate of 6.4 miles per hour. If the length of the marathon is 26.2 miles,

70. ## chemistry

When 0.320 moles of NH4Cl is dissolved in 1.00 L of water, the temperature drops by 13.7 degrees C. What is the heat of solution of ammonium chloride? The solution has a density of 1.0012 g/mL and a specific heat of 0.9818 cal/g degrees C. How do you find

71. ## earth science

Almost all maps have these four things: A)scale, legend, title, and compass B)rock units, legend, symbols, and scales C)contour lines, scale, legend, and compass D)rock types, legend, compass, and scale

72. ## chemistry

How is a mole ratio used to find the limiting reactant? Is there a specific equation to find the limiting reactant? Can someone explain it to me because I don't understand it.

73. ## Physics

In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016 and a radius of 8.50km . What is the speed of a satellite orbiting 4.70km above the surface? What is the escape speed from the asteroid?

74. ## English

Which is a favorite aim of the Romantic poets that Mary Shelley also had in writing Frankenstein? * to use the language of everyday life * to find evidence of the divine in nature * to depict the ways of the common people * to evoke intense and vivid

75. ## Chemistry

Taking the mass of the atmosphere to be 4.6E15 metric tons, what mass of carbon must be burned in order to increase the average carbon dioxide level in the atmosphere by 130ppm by volume (in metric tons)?

76. ## chemistry

If the initial pressure of SO3(g) is 4.775 atm, calculate the % of SO3(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kp at 1000 K is 24.40. The initial pressure of the reaction products is 0 atm.

77. ## math

1. With time, t, in minutes, the temperature, H, in degrees Celsius, of a bottle of water put in the refrigerator at time t=o is given by H = 4 + 16e-.02t How fast is the water cooling initially? After 10 minutes? Include units in your answer

78. ## algebra 1

which piont lies on the line defined by 3x+6y=2? a (0,2) b (o,6) c {1,-1/6} d {1,-1/3}

79. ## piont math spring break

which piont lies on the line represented by the equation below? 5x+4y=22 a -2,11/4 b -1,17/4 c 2,3 d 6,2

80. ## math

what is the definition of sphere?

81. ## Calculus

4. A gas station stands at the intersection of a north-south road and an east-west road. A police car is traveling towards the gas station from the east, chasing a stolen truck which is traveling north away from the gas station. The speed of the police car

82. ## English

"Lines Composed a Few Miles Above Tintern Abbey" is easy to recognize as a Romantic poem because it * describes the narrator's emotions about a landscape. * is about a revolution. * takes place entirely outdoors. * argues for the importance of the

83. ## totally math

some ordered pairs for a linear function of x are given in the table below. x y 1 1 3 7 5 13 7 19 sorry im not good at tables which of the following equations was used too generaTE the table above a y=2x+1 b y=2x-1 c y=3x-2 d y=4x-3

84. ## earth science

if continental crust were thinner than its average thickness of 40 km, would it depress the mantle more or less than it does now?

85. ## physics

a 20kg block is connested to a 30kg block by a string that passes over a frictionless pully. the 30kg block is connected to a spring that has niglible mass and a force constant of 250n/m.the 20kg block is pulled 20cm down the incline(40 degrees) and

86. ## English

What is Wordsworth's main subject in "The World Is Too Much With Us"? * the frenzied quest for wealth * the decline of classical learning * the rise of industrial cities * the wanton destruction of nature

What factors shaped the move from colonial, country life to modern, urban life? What was urban city life like during the rise of urbanization? How was it different or similar to modern urban life? Can you help me? I have not heard from my teacher about

88. ## Chemistry

In manufacturing a fruit drink, citric acid is added to water in the amount of 0.1 mol/L. What is the pH of the resulting solution?

89. ## College Chemistry

I was asked to find delta Grxn for the equation I2+Cl2--->2ICl. Was given information to solve for Q (PICl= 2.55atm, PI2=0.315, PCl2=0.216), i ended up with 4.4588. Then I solved for the standard G rxn by: Delta G= (-10.9*2)- (19.3+0)= -41.1. I used the

90. ## English

"Lines Composed a Few Miles Above Tintern Abbey" is a poem that celebrates the power of * analysis. * deduction. * memory. * prophecy.

91. ## Chemistry

A first order reaction has an activation enery of 50.0kJ/mol. When a catalyst is added the activation energy of the catalyzed reaction is Ea/2. Calculate the ration of k(uncatalyzed)/k(catalyzed) at 25 degree C.

92. ## math

noel and renaldo want to rent bikes with two other friends. they have \$150 to spend on bike rentals. bike rentals rent 1 bike for 9.75 per hour. special group rate for group of 4 or more, save \$3.00 per person. 4(9.75h-3)=150 noel says they have enough

93. ## chemistry

At room temperature pure water has a density of 1.00 g/ mL. What mass of water (in grams) will fit into a container if 1.00 lb. of mercury completely fills the container? Okay, here is what I solved so far. Let's say H2o equals water and Hg equals mercury=

94. ## algebra

x^2+225 ... factor expression over the complex numbers?

95. ## Chemistry

The initial pressure for the compounds involved in the reaction shown were determined to be P(Br2(g)) = 0.5417 atm, P(Cl2(g)) = 0.6962 atm, P(BrCl(g)) = 0.3442 atm. Calculate the value of the equilibrium constant (Kp) at 1000 K if the equilibrium pressure

96. ## science

Lily walked 2 blocks east, then 1 block south. How would you determine her total displacement?

97. ## pre calc

suppose beta is an angle in the second quadrant and tan beta=-2. Fine the exact vaule of sin beta and cos beta

98. ## To: Bobpursely

You helped me with my observations yesterday, but I need help with my questions as well. I tried to answer as many as I could by myself, but I'm having difficulties understanding some. Pointing me towards the right direction would be helpful, thanks.

99. ## Chemistry

a) Photosynthesis is estimated to produce 360.0 g (dry weight) of plant matter per square meter, 50% of which is carbon. Calculate the total number of grams of carbon "fixed" each year by 1000 square meters. b) The photosynthetic reaction can be

100. ## English-Friendship Poem

Here is another poem: the competition-by patricia young At times the competition was fierce between Cheri and me. Had to be equal in all things. Neither could bear that the other could run faster, picker a raspberry bush cleaner, that the other's mind

101. ## English

Which was a key element of the Gothic novel that Mary Shelley set out to employ in Frankenstein? * the inexplicable * the educational * the conventional * the philosophical

102. ## chemistry

if 2.0 x 10-5 mol of sparingly soluble Cu(IO3)2 can dissolve in 2L of a very soluble NaIO3 sol'n, what is the molar concentration of the NaIO3 sol'n? (Ksp=1.4x10-5 for Cu(IO3)2)

103. ## To: Ms. Sue

Ms. Sue could you please look through this and tell me if my answers are correct, thank you very much:-) This was one poem which I was having troubles understanding. Mostly the 1st stanza. What are Friends For-by rosellen brown What are friends for, my

104. ## Calculus

How would you differentiate each function? 1.) v(t)= sin^2 (sqrt (t)) 2.) h(x)= sin x sin 2x sin 3x

105. ## Calculus

Determin the absolute extreme values of the function on the given interval. 1.)y= 3 sin x + 4 cos x, xE[0, 2pie]

106. ## 11th grade Algebra 2

Marciella has a bag that contains 35 nickels and quarters. The total value of these coins is less than \$2.50. What is the maximum number of quarters that meets these conditions?

107. ## math

A share of common stock has just paid a dividend of \$2.00. If the expected long-run growth rate for this stock is 7%, and if investors require an 11% rate of return, what is the price of the stock?

108. ## basic math

Identify the rate, base, and amount in the following applications. Do not solve the applications at this point. 22% of Shirley’s monthly salary is deducted for withholding. If those deductions total \$209, what is her salary?

109. ## Literature

If you consider The Call of the Wild to be an Allegory,which one of the following statements would be true?

110. ## Algebra

Mack is 3 times as old as Justin. In 3 years, Mack's age will be 5 more years more than 2 times as old as Justin. How old are Mack and Justin? What is the system of equation for this? I got 3x=7 and x=5+2y. But it's wrong because, I ended up with

111. ## Physics

Assume that a deposit of oil is located 2000 m directly below. Estimate the size of the deposit, assumed spherical.

112. ## English

Hello! I am teaching English to 8th graders next week (they are learning English as a foreign language for 5 years) I have two short texts (one about Alexander Bell and his invention of the telephone and other about Christian Huygens and his invention of

113. ## Logic

Three boxes of grapefruit are incorrectly labeled. The labels read "white", "pink", and "pink and white". Visual identification can only be made by cutting the grapefruit and noting the pink or white color. By taking a single grapefruit from one of the

114. ## Chemistry

Calculate the concentration of SO2(ppm) that must be reached in polluted air (in ppm) if the dissolved gas is to produce a pH of 3.2 in raindrops without any oxidation of the gas.

115. ## math

5p to the 2nd power t + 3p to the 2nd power t = ?

116. ## health Care

. CheckPoint: Hospitals • Post a 200- to 300-word response to the following: Hospitals are generally categorized as nonprofit, for-profit, or governmental. Identify at least one example of each from your community or state. What are the differences in

117. ## Physics

calculate the kinetic energy, in J, of a 1200kg automobile travelling at 36km/h

118. ## PreCalc

An isosceles triangle is a triangle with two sides that are the same length. Find the measure of the two equal angles to the nearest degree in a triangle that has sides of length 5ft., 5ft., and 6ft.

119. ## Chemistry

If the initial concentration of NO(g) is 6.745 mol/L, calculate the % of NO(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kc at 2400 K is 400.00. The initial concentration of the reaction products is 0

120. ## algebra 1

what is the y-intercept of the graph of 4x+2y=12? i was giong well on my scratch paper and i mest up and i got stuck and had to erase everything and do it over answers: a -4 b -2 c 6 d 12 please and thank you i need how they do the work i cant decide!

121. ## eng

Which of the following is NOT true of colligative properties? Colligative properties are... A. dependent on the mass of solute present. B. independent of the chemical identity of the solute. C. dependent on the molar mass of the solute. D. responsible for

122. ## trig

what is the tan of 25 degrees and 01 minute

123. ## math

the length of a rectangle is 3cm more than twice the width. the perimeter is 84cm. find the length Please show me the steps on how you get the answer. Thanks

124. ## social studys

what impact did john calvins ideas and actions have on history

125. ## COM/150

Formatting Academic Papers Crossword puzzle week 8 com 150,

126. ## --------

Using the following letters once, what word can you make: A,E,M,R,S,S,T.

127. ## Biology

Bacteria produce yogurt from milk by (a) conjugation (b) aerobic respiration (c) fermentation (d) fixing nitrogen I'm missing school for a week so I need help with a few Biology problems.

128. ## Algebra

(25x^6y^8z^2)^3/2

129. ## math

Samuel Morse developed a character coding system that was used to send messages along telegraph lines and also for light signalling between ships. Morse code is based on a series of dots and dashes (short of long bursts). The most frequently used letter,

130. ## Chemistry

What would be the product of a reaction between methanal and pyrrolidine in acid? I know that normally a reaction between a carbonyl and a secondary amine would form an enamine. Here I am confused because there are no hydrogens that can be removed to form

131. ## English

Is this a good sentence using the words: affliction: the cause of persistent pain or distress I was afflicted by grief after my cousins death. Digress: to turn aside especially from the main subject of attention or course of argument While discussing the

132. ## physics

If a 31.0 N·m torque on a wheel causes angular acceleration 22.0 rad/s2, what is the wheel's rotational inertia?

133. ## 11th grade Algebra 2

A retaurant sold a total of 418 largeand small hanburgers during one day. Total hamburger sales were \$1077. Large hamburgers sold for \$3, and small hamburgers sold for \$1.50. Write a system of liner equations can be used to find, l, the numberof large

134. ## Math

1. sin (teta) / cot (teta) + cos (teta) = sec (teta) --> sin (teta) divide 1 / tan (teta) + cos (teta) I'm stuck now because i don't know where to go from here

135. ## Economics

True or False? At any given time, if the demand for a product is greater than the supply available, the price will be higher. Flase???

136. ## chemistry

if 32kj of energy results in an average weight gain of 1 g of body mass, then how much weight could a person gain after eating 1 cookie. mass of 15.21g of a cookie.

137. ## Math

the length of a rectangle is 3cm more than twice the width. the perimeter is 84cm. find the length

138. ## Math

Hi. what is 67/100 - 3/10?

139. ## Biology

I feel stupid, but seriously, I used to be better at Science than Math. Now it's the other way around. Bacterial DNA is (a) a closed loop (b) encased in a capsule (c) linear (d) found in the nucleus. The glycocalyx helps bacteria (a) survive unfavorable

140. ## algebra

1. Imagine you are at a 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 a. What does the number 3.03 represent?

141. ## geometry

What is the area of the base or a right triangular prisim? V= 90cm cubed h=10cm

142. ## algebra

Are the pairs parallel, perpendicular, or neither 3x+4y=1 4x+3y=8 I say they are perpendicular

143. ## Chemistry

In the neutralization of HCl and NaOH i was instructed to measure the temperature of the acid HCl prior to mixing the reaction components. I was to assume however, that the NaOH solution was at this same temperature. Is this a reasonable assumption?

144. ## PSYCHOLOGY

How do classical conditioning procedures differ from operant conditioning procedures? How are they similar? In your opinion, which learning process is more effective? Why? How do we see observational learning being used in the work place? How do we see

145. ## English/Language

What does the idiom "Behind the eight ball" mean? Thanks to anyone that could help!

146. ## Math

A theater shows 8 movies at 3 prices five times each day. How many types of tickets does the theater sell? How do I solve this problem???

Is there hidden cost with pulley systems that reduce effort?

148. ## Chemistry

What mass (in grams)of mercury will fit into a 2 L bottle? M= DV V= 2L= 2,00o mL D= 13.6 g/ mL Mass= 27, 200 grams??

149. ## maths

room dimension 40x20x10m does that = 8000m3 to convert 8000m3 to litres do I multiply 8000x1000

150. ## writting

what does hewn mean? Also can i get a list of synonyms for objects , cutting , impact and act. please help!

151. ## Chemistry

2. [4 points] Serum cholesterol levels were monitored to investigate the effect of physical training. Prior to this training, blood samples were acquired from each of the 12 subjects and were tested for cholesterol level. After a week-long training period

153. ## English 11

How do you write an outline in standard outline form?

154. ## chemistry

if 32kj of energy results in an average weight gain of 1 g of body mass, then how much weight could a person gain after eating 1 cookie. use dimensional analysis mass of 15.21g of a cookie.

155. ## programming

I am in IT/210 and am having problems with the entire class. But what I am stuck on is as follows: Consider the following statement where X is an integer test score between 0 and 100. input X if (

156. ## Statistics

Can a hypothesis test yield a statistically significant (say p

157. ## Math

I am having a hard time figuring this out. Can someone assist me in the right direction? Here is the problem: 5. When managing a business, it is important to take inventory of where your money is spent. You have a monthly budget of \$5,000. Refer to the

158. ## algebra

write each number in exponential notation 100= 10,000=

159. ## Math

cos(2 tan^-1 1/3) cos(sin^-1 1/5 +cos^-1 1/3) For this one I got the answer to be sqrt 24/15 -sqrt 8/15, is that right? I have no clue how to start the first one

160. ## College English

I'm stuck. What kind of fallacy is: The officer said the driver had been clocked at 70 miles an hour, but the driver retorted, "You were going just as fast as I was; if I'm guilty, so are you."

161. ## math word

beth is two years older than julio. gerald is twice as old as beth. debra is twice as old as gerald. the sum of their ages is 38? how old id beth a 3 b 5 c 6 d 8 why!!!

162. ## chem

Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the treatment/management of genetic diseases?

consider a bowl containing 36 different slipsof paper. Ten of the slips of paper each contain one of the set of digits0 through 9 and 26 slips each contain one of the 26 letters of the alphabet. Determine the probabilities of the events specified. Drawing

164. ## totally math

what is the equation of the line that has a slope of 4 and passes through the piont (3,-10)? a y=4x-22 b y=4x+22 c y=4x-43 d y=4x+43

165. ## social studies

True or False: Islamic invaders generally demanded that conquered peoples accept Islam.

166. ## math

Louis Braille devised a system of six raised or not-raised dots to signify a letter of the alphabet. a) How many different letters or characters may be coded in Braille? b) If you wanted to code 94 distinct characters, such as those found on a computer

167. ## In Music

What does Allegro mean?

168. ## math 12

The mean and standard deviation of a set of data are two measurments that describe the data. A certain student has written 8 out of 10 unit exams, which are equally weighted. The student misses the ninth exam and receives a score of 0. However, for the

169. ## moments of inertia

I determined the area moment of inertia and the product of inertia of the cross-section of a beam about the centroidal axes using equations. I am now asked to design an experiment to verify the results that I obtained through equations. Can someone please

170. ## Math

Hint for this assignment: Pay attention to the units of measure. You may have to convert from feet to miles in this assignment. You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different

171. ## algebra

without graphing, identify the slope and the y-intercept for the line associated with the equaiton. 5x + 20y = 60

172. ## English

Is this a good sentence using the words: Procure: to get possession of; achieve If you study hard you will procure good grades. Beguile: to lead by deception; divert The dog beguiled the thief's attention away from the cowering people towards him. Truce: a

173. ## English

Can you please tell me if all the sentences typed below are possible? Thank you very much in advance. 1) Under the feudal system the King owned all the lands (all land: are both correct?) which were then given to the vassals in return for goods and

174. ## college

how to write a persuasive essay using a strategy of convincing my employer of the value of providing tuition reimbursement and making extra time for adult learning.

175. ## Math

Find the intersection. {2,5,7,10} and {3,6,9}. I think that the intersection is a empty set. Is this correct? Thanks.

176. ## social studies

I need help in starting a persuasive essay where the strategy is to convince my company of the value of providing tuition reimbursement and making extra time for adult learning

177. ## DrBob222

If you don't mind me asking, How are you so smart, and how old are you?

if there were 36 coins in the bag,how many pennies and dimes do you predict there were?explain your answer

179. ## physics

What is the gravitational potential energy of a 300.0 g coffee cup sitting on a table top 1.25 m above the floor?

180. ## Computers

True or False? RAM is the electronic holing area on the computer. False???

lara and maria finished 3 4th of thier homework assigment. lara did 1 4th more of the assignment than maria. what fraction of the assignment. what fraction of the assignment did each girl finish?

182. ## chemistry

what is Ph of [H+] = 0.00010M?

183. ## physics

Explain why the pressure at depth h in a stationary fluid is `rho g h.

184. ## math 156

Indicate whether the sequence is arithmetic, geometric or neither 10,12,22,32,42.....

185. ## Organic Chemistry

Write two reactions using a different reagents in each that could be used to prepare pentan-3-one from pentan-3-ol.

186. ## algebra

In 1999, there were 200,000 registered dogs that were Labrador retreivers and dachshunds. There were three times as many Labrador retreivers as dachshunds. Find the number of Labrador retreivers and dachshunds.

187. ## PSYCHOLOGY

Consider your immediate peer group at work. How would you describe authority as it exists and is exercised in this group? What causes it to be exercised this way? How can the study of psychology improve group “dynamics”?

188. ## social studies

No, it is part of my homework to complete a persuasive essay to convince my company the value of providing tuition reimbursement and make extra time for adults learning.

189. ## Chemistry

How much Fe++ could be present in water containing 1 x 1e-02 M HCO3- (bicarbonate) without causing the precipitation of FeCO3 (Ksp=10**(-10.7))

190. ## Biology Research Paper--Urgent

How do I make parenthetical references of a website throughout my research paper? Thanks -MC

191. ## math

Can someone please explain this problem to me: I have to use integrals to find volumes with known cross sections but i just don't understand. I have to do a lot of examples for homework like this so can someone show me so I can do my other problems?

192. ## child care

Child care staff are most effective during science activities when they?

193. ## organic chemistry

Assuming that an average 1 oz of black tea contains approximately 6 mg of caffeine, determine the experimental and %yield of the reaction.

194. ## Algebra

using f(x)=4x-5, find f^-1 o f

Can someone tell me a little about The Wave Model of Light and The Electromagnetic Spectrum. (Who came up with the theory, etc) All help is much appreciated! Tks!!!!!

196. ## Literacy

What risks do teachers have when allowing students to pick their own reading material, and how much of a factor should that be in picking an approach to teach reading?

197. ## social studies

No, it is part of my homework to complete a persuasive essay to convince my company

198. ## physics

If a person were 300 meters above ground and it took them 7.746 secounds to hit the ground, how fast were they traveling?

199. ## algeabra

Consider the experiment of selecting a card from an ordinary deck of 52 playing cards and determine the probability of the stated event

200. ## fractions

7/13 divided by 3/4

201. ## math

I'm doing solving quadratic equations.I need help with couple of problems. k(k+5)=0,4r^2=100

202. ## math

what is half of 2 1/4

203. ## Inorganic Chemistry

In the molecular compound [Co(NH3)3(DMF)](NO3)3 what is the mode in which DMF is preferred?

204. ## Inorganic Chemistry

In the molecular compound [Co(NH3)3(DMF)](NO3)3 what is the mode of bonding in which DMF is preferred?

205. ## physics

if a current of 4900A is applied to a copper wire what might happen to it? does it burn or what?

206. ## bus 210

Describe what you consider the most effective behavior of entrepreneurs, managers, and employees.

207. ## Chemistry

[4 points] In a recent poll, 10 local students were asked how many beers they drink in a typical week. The responses, in no particular order, were: 4, 10, 6, 14, 12, 17, 30, 15, 12, 0 At a 90% confidence level, is there an outlier in the data given above?

208. ## Calculus

find second derivative of f(t)=inverse cos(4t)

209. ## English

Can you please tell me if the following expressions are all possible? Thank you very much in advance. 1)The church played (and not had?) a fundamental role in medieval times. 2)It gave consolation to the oppressed and assistance to the poor. (is the

What were the protestors called during the Revolutionary War that were against tax laws?

211. ## ss

what is the significance of a tributary?

212. ## com/150

I need help filling out Appendix D for my com/150. I need some help with my supporting details, and my subdetails. My thesis statement is "Instead of being the solution to larger issues like low self-esteem and depression, cosmetic surgery has became the

213. ## algerbra

-2/5x=8/35 What does the solution x =

214. ## alegrabra

which order pair belongs in th solution set y-3x

215. ## math

The larger square is 14 feet long. The smaller square is 2 feet long. What is the area?

216. ## college chem

how many mL of .100 M of acetic acid and .100 M of NaOH, would be need to make the volume 1.0 liters and have a pH7.00 if Ka=1.8x10^-5 please write out the eq for me

217. ## science

How much energy is required to raise 1 gram of water from -15 C to 110 C?

(x-y)(x+y)=?

219. ## Algebra

I have to find the domains of these functions and don't know how: f(x)=SQRT 2x-1 and f(x)=3/x+4 Help Please!

220. ## psychology

what is it called when you learn from the consequences of behavior?

221. ## Algebra

In 1999, there were 200,000 registered dogs that were Labraodr retreivers and dachshunds. There were three times as many Labrador retreivers as dachshunds. Find the number of Labrador retreivers and dachshunds

222. ## physics

What is the total mechanical energy of a 20 kg owl flying at 5.0 m/s through the air at a height of 25 m above the ground?

223. ## math

how many mL is 4 litters

224. ## math

the perimeter of a square is 28 m what is its area

225. ## Calculus

show the following linearization of the function f(x)=cos(3x)-3sin(3x) at x=2pi

226. ## English

I have a standard 5 paragraph in class essay tomorrow. Any tips, friends?

227. ## art history

can someone please help me I don't know how to make a thesis statement about a greek krater for my ancient art class

228. ## Math

Trains A & B are traveling in the same direction on parallel tracks. Train A is going 60mph and Train B at 80mph. Train A passes a station at 6:25 am. If Train b passes the same station at 6:37, what time will B catch up with A? The answer I received is:

229. ## social studies

how to make a outline foR The Industrial Development of the U.S (1868-1898)?

230. ## com/150

I need help filling out Appendix D for my com/150. I need some help with my supporting details, and my subdetails. My thesis statement is "Instead of being the solution to larger issues like low self-esteem and depression, cosmetic surgery has became the

231. ## management information systems

can you help me with this question for example , i work for one retail company, so i need explain and justify in selecting the input devices , output devices and software ( system & application software)for that company.

232. ## Technology

24. From a technological viewpoint, explain why farming has gotten less labor intensive over the last hundred years. I really need help on this.

233. ## social studies

when was rome discoverd

234. ## math

A store marks up items 42.5% to allow for profit. If an item costs a store \$24.40, what will its selling price be?

i need help

236. ## government

what are 2 examples(policy positions) in which the obama administration has worked to the advantage of corporate interests?

237. ## Social Studies/GuruBlue

Can you suggest any websites that might help me so that I can do good on this assignment?

238. ## Math

Can someone tell me what allegro mean in math terms?

239. ## math

how do u calculate the area of a triangle

242. ## math

The Number Of Degrees In The Point Angle Of Each Figure 5/2. Can Someone Help Me?

243. ## math

what is 4 divided by 95.96

244. ## analogies

letters : mail :: _______ : money

245. ## speech

i need information on advertising the good the bad and the ugly

246. ## human resources

How can a technology manager help their company to grow?

247. ## trig

sin^2è + 2sinè +1 =0

15 over 7y=3

249. ## Finance

2004 and the inflation rate is 4% annually

If P (A) = 2/3, P (B) = 1/6, and P (A and B) = 0 what can you say about P (A or B)?

251. ## college

how to do this problem. -(25^1/2) =

252. ## college math

how to do (y^36)12= (16n)1/2= (12x^8)1/2= 3y^12/10=

253. ## ummmm

whats the def. for undercapitalized?

254. ## whatever?

what os this website even about?

Kara walks 9 blocks to school.Each block is 65 feet long.How many yards does Kara walk to and from school?

256. ## math

x y 0.5 2 1 1 2 0.5 4 0.25 5 ? 10 ? part a complet the 2 missin number? need help part b based on the table, writ a function rule that represents the relationship between x and y. rule ____need help_____________________?

257. ## us history

the slaved-based economy in the south is created by?

258. ## Integrated Algebra

IN 1999, there were 200,000 registered dogs that were Labrador retrievers and dachshunds. There were three times as many Labrador retrievers as dachshunds. Find the number of Labrador retrievers and dachshunds.

7-4w=10w

260. ## math

(x-y)(x+y)=?

the empire and a penny

262. ## algerbra

x-5=21 What is x=

263. ## exciting school!

16a/4 (divided by 4) how would u do this?