# Questions Asked onDecember 8, 2009

1. ## Chemistry

The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M LiOH solution. What is the concentration of the H2SO4 solution (in M)? A) 0.40 M B) 0.10 M C) 0.20 M D) 0.25 M E) 0.36 M The answer is supposedly C, but I got A.

2. ## 12th Physics

A 55 kg ice skater is at rest on a flat skating rink. A 198 N horizontal forceis needed to set the skater in motion.However, after the skater is inmotion, a horizontal force of 175 N keeps the skater moving at a constantvelocity. Find the coefficients of

3. ## Physics 221

A 20g particle is moving to the left at 30 m/s. How much net work must be done on the particle to cause it to move to the right at 30 m/s. The answer is 0J of work, and i understand the method of equations, but i don't understand the logic behind it.

a.the gravitational force between 2 electrons 1.00m apart is 5.42x10^-71 N. Find the mass of an electron. b.2 spherical balls are placed so their centres are 2.6m apart. The force between the balls is 2.75x10^-12N. What is the mass of each ball if one ball

5. ## phys.

the shortest and longest wavelength series in singly ionized helium is 22.8nm and 30.4nm . Are they right? How many orders we can see between the angles range observations 30 and 90 in the Balmer's series?

6. ## Literature

'What is the tone of the poem El Olvido? Describe the speaker's attitude towards the subject and support your description by commenting on word choice and rhythm.' This is what i got: The tone of the poem 'El Olvido' is very solemn as the speaker describes

7. ## physics

A sealed tank containing seawater to a height of 11.0 m also contains air above the water at a gauge pressure of 3.00 atm. Water flows out from the bottom though a small hole. Calculate the speed with which the water comes out of the tank. I believe this

8. ## AP U.S. HIstory

What bias did the FOunding Fathers demonstrate in their procedure for electing senators?

9. ## compose

if 3.85 L of carbon monoxide was collected over water at 25 degrees celsius and 689 mmHg how many grams of formic acid were consumed?

10. ## physics

Given: latent heat of fusion of water 3.33x10^5 J/kg. A 147 g cube of ice at 0 degress C is dropped into 1.3 kg of water that was originally at 79 degrees C. What is the final temperature of the water after the ice melts.

11. ## Math

Three neighbors are sharing a rectangular strip of land fir a garden. They divide the land into 24 equal-sized pieces. What fraction of the land does each person get if they share it equally? Write the answer in more than one way

12. ## Literature

'What is the tone of the poem El Olvido? Describe the speaker's attitude towards the subject and support your description by commenting on word choice and rhythm.' The tone of the poem ‘El Olvido’ is intense as a mother prays for her child who has

13. ## chemsitry

hi I need help with this question please. 1. consider the decomposition of N2O5 in carbon tetrachloride(ccl4) at 45c 2N2O5(soln)-> 4NO2(g)+ O2(g) The reacion is first order in N2O5, with the specific rate constant 6.08*10^-4 per second.calculate the

14. ## math

Reduce the fraction to lowest terms. Do not use spaces in answer. 38x^2yz^2 __________= -19xy^2z^3

15. ## geometry

the bases of a trapezoid have measures of 16 and 8. find the measure of the median.

16. ## Physics

The "hang time" of a punt is measured to be 4.00 s. If the ball was kicked at an angle of 53.0° above the horizontal and was caught at the same level from which it was kicked, what was its initial speed? (Neglect air resistance.)

17. ## Phys sci

Which one of the following frequency can set the string into resonant vibration? If a guitar string has a fundamental frequency of 500Hz a)250Hz b)750Hz c)1500Hz d)1750Hz

18. ## Math

Felicia traveled 7 kilometers to school 1/10 of that time she walked and 9/10 of the distance she rode a bus. A. How far did Felicia walk? B. How fare did she ride?

19. ## Chemistry

Which of the following is a dipole? KrF2, NH2Cl, CH2Br2, and SCN^- I'm pretty sure that KrF2 and NH2Cl are not dipoles, but why? also, what makes something be a dipole?

A furniture store sells recliners at a 70% mark-up (based on price). If the recliner costs the store \$240, what price will they charge? Formula: %Markup on cost=%markup on selling price/100% - % markup on selling price x = 70%/100%-70% x = 70%/30% x =

21. ## Math

If exactly three darts hit this target, how many different scores are possible? darts circle 1 3 5

22. ## Physics

Babe Didrikson holds the world record for the longest baseball throw (296 ft) by a woman. For the following questions, assume that a ball is thrown at an angle of 45.0° above the horizontal, that it travels a horizontal distance of 280 ft, and is caught

23. ## Science

Where is this earthquake's epicenter? A)Tokyo, Japan B)Manila, Philippines C)Beijing, China D)Hong Kong, China

24. ## MATH

Joe bought 2 dozen eggs at the store. On the way he dropped the eggs and broke 3/4 of them. How many eggs broke?

25. ## STATS

A student's grade on an examination was transformed to a z value of 0.67. Therefore, we know that she scored approximately in the top

26. ## math

Reduce the fraction to lowest terms. Do not use spaces in answer. x^3-x^2 ________= x^4

27. ## social studies

How did Charlemagne gain the title Emperor of the Roman People from Pope Leo III? A. He inherited it from his father. B. The pope saw his concern for his people in the way he governed. C. He built a very large cathedral in Aachen and earned the pope’s

28. ## Math

How do you write Rotation, Translation, and Rotational Symmetry in math. For example, reflection is written : a reflection in line l is indicated by ML.

29. ## human services

What have been the most significant changes in human services over the past 50 years? How has society’s responsibility to individual needs changed in the last 10 years? What do you think the role of human service workers will be in the future?

30. ## math

suppose you copy a figure on a copier using the given size factor. find the scale factor from the original figure to the copy in decimal form. a)200%, b)50%, c)150%, d)125%, e)75%, f)25%

31. ## Economics

How does a price ceiling undermine the rationing function of market-determined prices? How could rationing coupons insure that consumers with the highest values get the limited amount of a good supplied when government price ceilings create shortages?

32. ## Chemistry

How would i find the hybridization of the central atom in NO3^- and CH2Br2? Also, in general how would I find the hybridization of something, and what is hybridization (I'm very lost)?

33. ## math

Evaluate the following expression. 7^0

34. ## math

what did the ape think of the grape's house?

35. ## English 11 (Novel Study No country for old men)

Im doing an essay on the lack of redemption shown in the novel No country for old men. I needs 1000-1200 words and i got about 7 paragraphs these include -Thesis -Body paragraph 1(the corruption of money) -Body paragraph 2(the curruption of youth) -Body

36. ## Statistics

In a distribution of 400 response times with a mean of 7 minutes and a standard deviation of 2 minutes, the maximum number of response times greater than 13 minutes would be about: A. 40 B. 100 C. 75 D. 90

37. ## math

Reduce the fraction to lowest terms. Do not use spaces in answer. -5jk ________= 35j^2k^2

38. ## Accounting

Is it ethical to lengthen asset lives to reduce depreciation expense using the straight line method? Also, is this against accounting regulations?

39. ## Physics

A golf ball is struck with a five iron on level ground. It lands 85.0 m away 4.60 s later. What was the magnitude and direction of the initial velocity

40. ## physics

A block of ice at 0°C whose mass initially is m = 12.5 kg slides along a horizontal surface, starting at a speed vo = 4.10 m/s and finally coming to rest after traveling a distance d = 10.07 m. Compute the mass of ice melted as a result of the friction

41. ## algebra

Reduce the fraction to lowest terms. -5jk ________= 35j^2k^2

42. ## physics

A bomb is dropped from a altitude of 1600 meters.How long will it take for the bomb to hit the ground?

43. ## physics

When an open-faced boat has a mass of 5750kg, including its cargo and passengers, it floats with the water just up to the side on a freshwater lake. (a)What is the volume of this boat? (b) The captain decides that it is too dangerous and wants to throw

44. ## Physics

if the intensity of a mosquito's buzzing is 9.3 x 10^-8 W/m^2 at a distance of 0.21 m, how much sound power does that mosquito generate?

45. ## algebra

Reduce the fraction to lowest terms. 38x^2yz^2 _________= -19xy^2z^3

46. ## geometry

Lines a, b and, c are perpendicular bisectors of angle pqr and meet at a find x, y, nd z

47. ## Math -- 6th Grade

The sum of two decimal numbers is 5.3. Their difference is 1.7, and their product is 6.3. What are the two numbers? Does the product have anything to do with getting the answers?

48. ## Math

Juan bought 2 tires for his bike. His bike cost \$65. How much did he spend on the 2 tires?

49. ## physics

1. Part (1 of 2) A 5.36 g bullet oving at 681.8 m/s penetrates a tree trunk to a depth of 3.79 cm. a) Use work and energy considerations to find the magnitude of the force that stops the bullet. Answer in units of N. and 2. Part (2 of 2) b) Assuming that

50. ## Math

cheryl, rita and four of their friends go to a movie and share equally a 48-ounce bag of popcorn and three 48-inch licorice laces. Find the fraction of popcorn each gets and the fraction of licorice each gets.text

51. ## MATH

Carmen spent 4 hours at the Y on Saturday. Two thirds of that time she spent in the gym. How many hours did she spend in the gym?

52. ## Ap Chemistry

I have no idea where to start with this problem: A certain reaction has the following general form: aA -> bB At a particular temperature and (A)o = 2.00(10^-2)M, concentration versus time data were collected for this reaction, and a plot of In(A) versus

53. ## Management 2

Which type of lighting is most compatible with computer work? a. fluorescent, b.sunlight from windows, c. task lighting, d. colored lighting?

54. ## Chemistry

Balance the following in basic solution using the lowest possible integers and give the coefficient of water. MnO4- + C2O42- --> MnO2(s) +CO32-

The Pack-U-Up Moving Company uses several different size boxes,but the boxes all have the same meaurements on the top andbottom so they'll stack neatly on top of one another.The only differences between the boxes is their heights: some are three feet high,

56. ## Math

This is the question given: "Peanuts sell for \$5/kg and cashews for \$20/kg. Mary wants to sell a mixture of peanuts and cashews for \$12/kg. How many kilograms of peanuts and cashews would Mary have to mix in order to make 30kg of the \$12/kg mixture?" This

57. ## social studies

what is the geographic features of the eastern woodlands

58. ## physics FORCE

if the intensity of a mosquito's buzzing is 9.3 x 10^-8 W/m^2 at a distance of 0.21 m, how much sound power does that mosquito generate?

59. ## Social Studies

Why do most Canadians live near the U.S border? (two reasons) One of my reasons were: to trade. (I remember that the teacher was saying that)

60. ## math

equations....4 pennies=4pennies;multiply both sides by 7

does the word ''cartoon'' have long vowel sounds?

62. ## calculus

find the derivative of f(x)=cot(3x)csc^2(3x)

63. ## Chem.

Why is it not possible to achieve a complete separation of the ethanol from the water in the clarified reaction mixture via simple distillation? I'm not sure about this because I thought the difference between fractional (what was done) and simple

64. ## Calculus

Find the area enclosed between f(x)=0.4x^2+5 and g(x)=x From x=-5 to x=8

65. ## physics

A rectangular crate of weight W is floating in water with 2/3 of its volume above water. If you now want to push down on it to hold it lower in the water, so that only 1/3 of its volume is above water, the downward force needed to do this is: A. W B. 2W C.

66. ## geometry proofs

given: line QO congruent to QN, line NM CONGRUENT TO OP Prove: triangle QMP IS ISOCELES 5. TRIANGLE QNM CONGRUENT TO TRIANGLE QOP WHAT IS THE REASON 7. TRIANGLE QMP IS ISOCELES WHAT IS THE REASON

67. ## Physics

if the intensity of a mosquito's buzzing is 9.3 x 10^-8 W/m^2 at a distance of 0.21 m, how much sound power does that mosquito generate?

68. ## geometry

the bases of a trapezoid have measures of 16 and 8. fine the measure of the median.

69. ## Math

The Pack-U-Up Moving Company uses several different size boxes,but the boxes all have the same meaurements on the top andbottom so they'll stack neatly on top of one another.The only differences between the boxes is their heights: some are three feet high,

70. ## cjs 220

what are the methods of judicial selection for federal appellate, state appellate and state trial court judges?

71. ## grammar

The dock is on Fish Lane. CAPITALIZE the proper nouns in the sentence.

72. ## socials

i am asked to do a project of the english philosophers, what are the major works (with dates) for baron de montesquieu

73. ## Misc

I need to know the three most dangerous things that can happen on a socializing website such as facebook, for teenagers. Thanks -MC

74. ## Science

Any help on this I have to go to bed!!!! Help!!!! I can't find these answers anywhere and I don't have a science text book. 1. A tough outer covering that lies right outside the cel membrane. 2. A twisted membrane with portions that break off to form

75. ## AP Chemistry

I have no idea where to start with this problem: A certain reaction has the following general form: aA -> bB At a particular temperature and (A)o = 2.00(10^-2)M, concentration versus time data were collected for this reaction, and a plot of In(A) versus

76. ## Phenix

The Harley Davidson motorcycle company, which had a copyright on the word “hog” appiked for exclusive rights to its engine sound. Why would a company want copy rights on two such mundane things?

77. ## statistics

21. Payne (2001) gave participants a computerized task in which they first see a face and then a picture of either a gun or a tool. The task was to press one button if it was a tool and a different one if it was a gun. Unknown to the participants while

78. ## math

1 centimeter is what fraction of one meter

79. ## Physics

A soccer ball is kicked with an initial speed of 12.2 m/s. After 0.497 s it is at its highest point. What was its initial direction of motion?

80. ## Calculus

A fully plane has a constant acceleration while moving down a runaway. the plane requires .7 mile of runaway and a speed of 160 miles per hour in order to lift off. what is the planes accelearation? i need the formula cause the one i have doesnt work cause

81. ## math

there are 40 people at a picnic there are 4 more children than adults how many of each are there

82. ## science

What are the seven energy levels and tell the maximum number of electrons that can fit in each.

83. ## Language Arts

Risk is to chance as forthought is to?

A furniture store sells recliners at a 70% mark-up (based on price). If the recliner costs the store \$240, what price will they charge?

85. ## Italian

Hello, I am teaching myself Italian from a textbook, Ciao! Sixth edition, but I am getting confused with some of the answers, as the information is lacking in a sound explanation. Does anyone know where I can find the answers to the textbook questions, so

86. ## history

I know that during the McCarthy Era, people accused as being communists were asked to give names of other communists. I was wondering if it was true that if accused people gave names then they would be let off the hook? Thanks.

87. ## Math

Maria is going for a walk. She begins by walking north for 1 km. She then turns and walks east for 22 km, then turns and walk south for 3 km. She walks at a constant 4 km/hr. Express the distance from Maria to her starting point as a multipart function of

88. ## MATH

IF JACK AND JILL ARE COMPARING RESULTS OF A MATH TEST AND jACK HAD 40 CORRECT ANSWERS AND JILL HAD 50 CORRECT ANS AND THERE WERE 32 QUESTIONS THEY BOTH GOT RIGHT AND 6 THEY BOTH GOT WRONG. HOW DO I FIND THE NUMBER OF QUESTIONS ON THE TEST?

89. ## math

Let f(x)=x+2 Ix-3I and g(x)=3x-1 Find all solutions to the equation f(g(x))=-4x So this is what I did... (3x-1)+2 I(3x-1)-3I=-4x (3x-1)+2 I3x-4I=-4x This is where I got stuck. What do I do with the absolute value? and this part?(3x-1)+2=3x+1 ??

90. ## college comprehensive grammar checkpoint

Did you know a famous animal-rights activist has criticized horseracing because of the dangers involved? 1b. Did you know a famous animal-rights activist have criticized horseracing because of the dangers involved? Subject-verb agreement 2a. Peer editing

91. ## Math

The temperature in a certain cave is a sinusoidal function of time. When you first enter the cave, you set up a thermometer to record the temperature. After 19.5 hours, the temperature in the cave is at its maximum: 35 degrees celsius. The temperature then

92. ## Organic Chemistry

Carbocation: In which reaction mechanism is it an intermediate?

93. ## Math

My cousin Robert was pushed into a pool. The pool was 6 feet Wide and 10 feet deep. The pool had soft walls. How did my Cousin Robert Emerge from the pool? Ans__________ Hint- We do not know if it's filled with water or not. It is a round pool. It is a

94. ## chemistry

what is a simplified way of representing an organic compound by showing only rh carbon carbon bounds

95. ## geometry

Which is the correct ratio of sides for a 30-60-90 triangle

96. ## AED 200

what are 3 social issues kid face outside the classroom and what can the school do to help them overcome these issues?

97. ## probability

hi! how would you figure out a problem where you are given a probability of success for 12 people and you are trying to find the probability of success for 1 person?

98. ## science

What is happens to rocks after their elastic limit is passed?

99. ## Psychology

What is "Acquiring New Behaviors" deal with? It is part of Behavior Modification but that's all I know. It has to deal with positive/negative behavior Could someone explain and give me examples Thanks

100. ## algebra

Evaluate the following expression. 3^-2

101. ## Math

intergrate(e^5x)/((e^10x)+4)dx

102. ## Algebra

5m -2 = 33 while i know the answer is m=7 therefor making the equation read: 5(7)-2=33 how do I show my work

103. ## Math

Mario broke a pane of glass in a window.The opening measured 7 and 1/4 inches by 9 and 1/2 in.At the hardware store,they sold him a pane of glass that was 7 and 1/4 inches by 9 and 1/2 inches to the nearest 1/4 inches.Can Mario be sure the glass will fit

The sum of two decimal numbers is 3.9. Their difference is 0.9, and their product is 3.6. What are the two numbers?

105. ## arithmetic

On one of the questions of a recent math test, a student divided by 9 instead of multiplying by nine. This computation gave an answer of 18. What's the correct answer?

106. ## math

Sheryl correctly answered 85% of the questions on her 200-question biology final. Fernando scored a 90% on his 180-question chemistry final. (a) Who answered more questions correctly? (b) Who answered more questions incorrectly?

107. ## math

Wheel’s Bicycle shop advertised a bicycle for 15% off for a savings of \$36. The bicycle did not sell so it was offered at a new 20% discount off the sale price. (a) What did the bicycle sell for regularly? (b) What is the amount of the new discount?

108. ## math

Paul read 20 pages of a book in 15 minutes. (a) What is Paul’s reading rate of pages per minute? (b) If he continues to read at the same rate, how many pages will he read in 1 hour?

109. ## Maths

An Investment Fund manager is required to maximise the return on a portfolio of bonds given the following information: Bond types Projected rate of return Benchmark government 9.1 UK gilts 10.3 Global investment grade (US \$) 6.7 Global investment grade

110. ## Ethnics

Should United States government policy favor certain kinds of immigrants? Should citizenship preference be given to the neediest applicants, the most talented, the most oppressed or the richest? Should applicants from certain countries be given priority?

111. ## literary

"bundle of services "is example of what literary device

112. ## World culture and the Arts

The Mesopotamians had a generally pessimistic view of life. How do the arts of their civilization reveal this? Use at least one example to illustrate your points. What other features of this culture does the art reveal?

113. ## physics

Thank you drwls, My problem is a. The lifetime of the levels in a hydrogen atom are of the order 10-E8s. What is the evergy uncertainty of these states? Compare this result with the energy value of the first excited state. b. Find the shortest and the

a friend and I entered an art contest. a blue ribbon is awarded for 1/3 of the pieces you entered in the contest.I won 2 blue ribbons and my friend won 3 ribbons. Explain how this could be.

115. ## us history

In what ways did democracy create a new political culture? How did democracy impact social change?

116. ## Psychology

What is social facilitation and how has the definition evolved"

117. ## Literacy development

What role does spelling have in an effective reading program? How can spelling best be taught? Should schools implement a formal spelling program?

118. ## garmma

She and mom got to the Dock late.

119. ## Statistics

I'm confused about significance tests. I've tried to look up what it means for the p to be less than the alpha but none of the explanations made sense. I understand that the alpha is the probability of wrongly rejecting the null hypothesis but I'm not sure

120. ## Science 275

I need help finding out about noliving asnd living factors that contribute to or affected by water resource problem.

121. ## Math

Simplify each expression. 1. 2x+8/x^2-16 2. 1+x/x^2+x 3. x^2-12x-28/x^2-14x 4. x^2+7x+10/x^2-4

122. ## science-biome

What is the typical precipitation and tempurature for summer and winter in a Virginia Temperate Forest? What are the characteristics of a plant and animal that is seen regularly in a Virginia Temperate Forest? How do the charecteristics relate to the

123. ## chemistry

explain why the type of bond could determine the volatility of a substance

124. ## Spelling

brother mother fly

125. ## Texas History

What was the mission that served as a halfway mark between Mexico and the eastern settlements? I have no clue and cannot find it in my history book...

126. ## Math

Solve for n á = (n-2) * 180 / n = 180 – 360/n

127. ## psy265

What are three components of attractiveness? Which of the three is most important to you? Why did you choose this factor? Consider, as you respond to your classmates’ posts, how their responses have had an effect on your views about attractiveness

128. ## English

how did sir gawain & the green knight convey 2 senses of supernatural?

129. ## Trig

Find the distance from pi. 7 pi/6. I subtracted 2 pi from this and got -5pi/6. But the correct answer is pi/6. Whwere did this come from?

130. ## Jo

That makes sense but were did you get of 7.9 from. Once I know that I under stand subtracting the period... just don't know were that value came from h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 0 2 4 6 6 3 4

131. ## math

When Professor Sum was asked by Mr. Little how many students were in his classes, he answered, “All of them study either languages, physics, or not at all. One-half of them study languages only, one-fourth of them study French, one-seventh of them study

132. ## math urgent

Find the result if the sumn of the roots of y= x^2+3x-5 is added to the product of the roots.

133. ## algebra

simplify 2x + 4 / 10x^2 + 24x + 8

134. ## college Statistics

A distribution with a mean of 200 units, a standard deviation of 40 units, a minimum value of 4 units and a maximum value of 245 units is A. Positively skewed B. Negatively skewed C. "Bell-shaped" D. Bi-modal

making copious reference to fanon's text the wretched earth,give as many arguments for anti-colonial violence as you can identify in his essay.evaluate each of the arguments by considering objections against it and see if fanon's argument can be resued

136. ## Science

what is the body symmetry of Mollusks'? and what is the body symmetry of Arthropods?

137. ## Biology

Describe an example of how natural selection influence the evolution of a particular species.

138. ## thermochemistry college

does anyone know profesor of green river community college, auburn,wa, sue critchlow ????

139. ## com150

topic outline and working references list I am trying to references templates but i don't know how.

140. ## math

44 less than d translated in an algabra expression Would it be: d-44

141. ## algebra

Part 1: Using the Library, web resources, and/or other materials, find the logarithmic formula that gives the pH of a substance. State what each variable in your equation represents. Find the pH of an acidic substance of your choice. Using this pH, show

142. ## grammar

trying to Capitalize the proper nouns in the sentence

143. ## algebra

Don't want the answer just the formula on how to figure this out. two trains are traveling on parallel tracks. Train A is going 40mph and crosses the station at 4:10, Train B is going 60mph and crosses the station at 4:25 when will train B catch up to

144. ## Math

I need help in finding the vertex of a parabola using an equation in this form: Ax^2 + Bx+C I have a test on this tomorrow. For example: 3x^2 +1x - 2 How would I find the vertex in this?

145. ## physics

When a metal pipe (open at both ends) is cut into two pieces, the lowest resonance frequency in one piece is 273 Hz and that for the other is 401 Hz. What resonant frequency would have been produced by the original length of pipe?

146. ## Science

With today's advanced technology, scientists are able to predict when an earthquake will occur A)true B)false

When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15% ethanol? Does this have to do with azeotropes? However, I thought this was possible? I am confused, please help.

148. ## Math;Pre-Algebra

My cousin Robert was pushed into a pool. The pool was 6 feet Wide and 10 feet deep. The pool had soft walls. How did my Cousin Robert Emerge from the pool? Ans__________ Hint- We do not know if it's filled with water or not. It is a round pool. It is a

149. ## Biology

I have this chart that states the blood sugar levels of 2 individuals. Why is it important that the two people have the same mass?

150. ## Math

prove that the cancellation law of multiplication is equivalent in a commutative ring to the assertion that the product of non-zero factors is not zero. Thank you.

151. ## english

tell me whats wrong with this sentence 'The teacher should have taken more time.' teacher- subject should- helping verb have- helping verb taken- action verb

152. ## Texas History

What was the mission that served as a halfway mark between Mexico and the eastern settlements? I have no clue and cannot find it in my history book...

153. ## Managerial Economics

I have an exam in two days. I need an explanation to this question please. MC = 10+5Q derive an equation for total cost

154. ## Math

Solve the inequality. 3(h+5)

155. ## Math

The Lappans buy 3 large sandwich wraps to serve at a picnic. 9 people in all will be at the picnic. Show 3 different ways to cut the sandwiches so that each person gets an equal share.

156. ## english

I need help on passive voice. Is the following sentence passive voice? The results of the aptitude test were told to us by the principal.

157. ## Precalculus

Solve the equation x^3 - 2x + 4 = 0. ==> I know the answer is -2, but I can't seem to remember how to solve these by hand without using a graphing calculator. Any help is greatly appreciated!! :)

158. ## english

what is the antonym for terrible

159. ## sci275

how can the government be involved in conservation efforts?

When sucrose is fermented to produce ethanol why is it not possible to obtain a final solution containing more than 10-15% ethanol? Does this have to do with azeotropes? However, I thought this was possible? I am confused, please help.

161. ## Literacy development

What are the connections between good readers and good writers?

162. ## Creative Writing

What are some plus and minuses of growing up males, and what are some plus and minuses of growng up females? the topic is: who has an easier time growing up; males or females My opinion: I don't think the difference is tremendous, but in most ways boys

Write your own journal entry from the perspective of a member of Bradford's colony. What do you think of these unruly pirates? What shocks you the most about these surly characters? How do the manners of the pirates differ from yours?

164. ## Math

Solve the inequality. 3(h+5)

165. ## social studies

Does use of veto power show weakness in executive branch or undermine relations with congress

166. ## english

In the sentence "these pebbles are like hundreds of small wheels." is like an verb if so action or linking?

167. ## Math

Find the x and y intercepts of a line that is perpendicular to the line y = -9/8x + 1 and passes through the point (18, -8).

168. ## Math

Find the definite integral of the following using a suitable substitution: 1) (x^2)/sqroot(x^3-1)dx 2)xe^(x^2)dx 3)(ln(x))^(7/2)/(x)dx

169. ## HCA230

List at least two pros and two cons for each of the given patient and caregiver roles.

170. ## english

In the fall, the warm ground melts the first layer of snow. in the fall- prep. phrase of snow- " " ground- subject melts- action verb anything else? because i answered this and she said it was wrong

171. ## Math

Laurie expects to make \$100,000 in 2007. Her social security tax rate is 6.20% up to the wage base, Medicare is 1.45%. How much FICA is Laurie expected to pay for the year?

172. ## science

how can the periodic table help you determine the number of valence electrons?

173. ## science

why is it uncommon for noble gases to form chemical bonds?

174. ## algebra

2x-2y=8 what is x/y 0/4 1

Why do you think Hopi indians may not have wanted to be converted to Christianity?

how do change a percentage toa degees

177. ## Algebra 2

I have to write a paper on Pascal's Theorum? What are some practical applications in the real world????

178. ## Bio

What do insulin injections do for people with diabetes?

179. ## english

Who is Willie Lynch 1700

180. ## Earth Science

Considering the amount of energy required to produce animal-based foods and goods, should humans change their habits so they consume products closer to the bottom of the food chain because it is more efficient? PLEASE HELP.

181. ## Spelling

Nail Hammer screw

Help!!!! I can't find these answers anywhere and I don't have a science text book. 1. A tough outer covering that lies right outside the cel membrane. 2. A twisted membrane with portions that break off to form vesicles that tranport materials.

183. ## english

'Snow can sometimes threaten the lives of moutain people.' snow- subject can- helping verb sometimes- adv. threaten- action verb of moutain people- prep.

184. ## math

-220 - 16 x 32

if 50 grams equal to 150 calories,how many grams equal to 1,000 calories

186. ## Science

one more thing- how are centipedes different from insects, crustaceans, and arachnids?

187. ## english

can't find the verb 'we could have done a better job.' we- subject ???

188. ## science

which electrons in an atom make chemical bonds? why

189. ## Managerial accounting

For its fiscal year ending October 31, 2008, Molini Corporation reports the following partial data

how do crystals grow?

1.9s+6=3.1-s

193. ## chemistry

which type of compound, ionic or covalent would you expect to have a higher boiling point? why?

194. ## Math

Find the definite integral of the following using a suitable substitution: 1) (x^2)/sqroot(x^3-1)dx 2)xe^(x^2)dx 3)(ln(x))^(7/2)/(x)dx

195. ## Calculus

Find the concavity and min and max for f(x) = x*sqrt(x^2+36) defined on the interval [-4, 7]?

196. ## chemistry

how might you separate ionic from covalent

197. ## language arts

I need help writing a thesis and outline dor divorced single mothers

i need help