# Questions Asked onOctober 5, 2009

A solution contains one or more of the following ions: Hg2 2+,Ba2+ ,Fe2+ and . When potassium chloride is added to the solution, a precipitate forms. The precipitate is filtered off and potassium sulfate is added to the remaining solution, producing no

2. ## physics

An ice sled powered by a rocket engine starts from rest on a large frozen lake and accelerates at +13.0 m/s^2. At t(subscript 1), the rocket engine is shut down and the sled moves with a constant velocity v until t(subscript 2). The total distance traveled

2C8H18(g)+25O2(g)-->16CO2(g)+18H2O(g) 0.290mol of octane is allowed to react with 0.600mol of oxygen.The limiting reactant is Oxygen. How many moles of water are produced in this reaction? After the reaction, how much octane is left?

A student placed 11.0 of glucose (C6H12O6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-ml mark on the neck of the flask was reached. The flask was then shaken until the

5. ## math

Max, James, and Brett were playing basketball. One of them broke a window, and the other two saw him break it. Max said, "I am innocent." Jamess said, "Max and I are innocent." Brett said, "Max and James are both innocent." If only one of them is telling

6. ## Chemistry

Which element is oxidized in this reaction? Fe2O3+ 3CO-(arrow)2Fe+3CO2

7. ## Algebra

A winch is used to tow a boat to a dock. The rope is attached to the boat at a point 15 feet below the level of the winch. Find the distance from the boat to the dock when there is 75 feet of rope out. I got 15^2+75^2=X^2. I put a square root around each

Find the percent by mass of sodium chloride in a 1.45M NaCl solution. The density of the solution is 1.05g/mol .

9. ## Physics

292 kg motorcycle is accelerating up a ramp that is 30 degrees above the horizontal. Propulsion force pushing the motorcycle up ramp is 3150 N. Air resistance produces a force of 250 N that opposes the motion. Find that motorcycle's acceleration.

10. ## chemistry

Nucleophile or electrophile? (1) CH3COOH (2) CH3COO- At first, I thought that they were both Nucleophiles, but now Ive confused myself and Im not sure.. Please help!

11. ## Physics - Tire Pressure

Why is the air (atmospheric) pressure of 14.7 lbs/in2 not included in the pressure gauge reading for a tire?

12. ## physics

A golf bounces down a flight of steel stairs, striking several steps on the way down, but never hitting the edge of a step. The ball starts at the top step with a vertical velocity component of zero. If all the collisions with the stairs are elastic, and

13. ## Physics

A 290 g block is dropped onto a relaxed vertical spring that has a spring constant of k = 2.6 N/cm. The block becomes attached to the spring and compresses the spring 10 cm before momentarily stopping. (a) While the spring is being compressed, what work is

14. ## Calc

If a ball is thrown into the air with a velocity of 30m/s, its height in metres after t seconds is given by y=30t-4.9t^2 Fing the average velocity for the time period beginning when t=2 and lasting 1second. I did V(1)=lim h->0

15. ## chem

A chemist requires some 3-hexanone for a reaction, but only has some 3-hexene available. Explain using chemical reactions, how the 3-hexene could be converted to 3-hexanone. Include the conditions needed for each step. (You will need two steps).

16. ## statistics

A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for their fathers. She has found that for the general population the distribution is skewed to the right, the mean degree of affection

17. ## Physical Science

Your friend says that the equivalent (combined) resistance of resistors connected in series is always more than the resistance of the largest resistor. Do you agree? I am stuck on this question. Could someone please help me out?

18. ## economics

if production displays economies of scale, the long run average cost curve is: a) upward sloping b) above the short run average total cost curve C0 below the long run marginal cost curve d) downward sloping

19. ## Help with deductive reasoning

Determine whether you can use the Law of Syllogism to reach a valid conclusion from each set of statements. 1. If a dog eats Superdog Dog Food, he will be happy. Rover is happy. 2. If an angle is supplementary to an obtuse angle, then it is acute. If an

A mass of 11.6g of phosphoric acid was produced from the reaction of 10g of P4O10 with 12g of water. What was the percent yield for this reaction?

21. ## Orgo

Assume that during an extraction experiment you have lost track of which layer is the aqueous layer. How could you determine which layer is which by the use of a simple test?

22. ## chemistry

How do you do conversions? For example: Convert 360 s to ms

2C8H18(g)+25O2(g)+16CO2(g)+18H2O(g) 0.290mol of octane is allowed to react with 0.600mol of oxygen.The limiting reactant is Oxygen. How many moles of water are produced in this reaction? After the reaction, how much octane is left?

24. ## math

faye has 20 feet of fencing to make a rectangular pen for her dog.What is the largest area she can fence in?

i have to write my essay about "the wife of Bath's tale" and first i need to explain how " the wife of Bath's tale"' can be read as both a pro-feminist and an anti-feminist stroy" second, provide an arguemtn as to which I believe the story to be(quotes and

26. ## socials

I just read a story called: Emilie: A Tale of the French Revolution, and in this story Emilie has just escaped execution by members of the more radical jacobin party, who have seized control of the revolution and believe the Girondists must be put down. As

27. ## economics

When the price of summer tank tops falls and you buy more because they are relatively less expensive, this is called:

28. ## Physics

1580 kg car is traveling with speed of 15 m/s. What is magnitude of horizontal net force that's required to bring the car to a stop in 50 m?

29. ## Physical Science

Aluminum has a density of 2.70 g/cm^3. What is the mass of a piece of aluminum that has a volume of 100.0cm^3? How would I figure this out? Thanks so much. :)

We are learning rational numbers in math. What does N W Z Q and Q1 mean?

31. ## economics

all of the following can be used to compute profit per unit except: a) price minus avg total cost. b) total profit divided by quantity. c) avg revenue minus avg total cost d) marginal profit minus marginal cost

32. ## 5th grade math and science question

Can you tell me if I answered these correctly? SCIENCE: How is the basic structure of living organisms different from that of non-living organisms? MY ANSWER: Living things need energy, nutrients, water and sunlight. Non Living things have no life at all.

33. ## history

why did the Puritans leave England, and what colony did they built in New England.

34. ## Physics

The 3.25 kg physics book shown is connected by a string to a 472.0 g coffee cup. The book is given a push up the slope and released with a speed of 3.79 m/s. The coefficients of friction are μs = 0.595 and μk = 0.241. What is the acceleration of the book

35. ## Chemistry

500 mL of water is added to 25 mL of 6.0 M hydrochloric acid. What is the final concentration of this solution in mol/L?

36. ## SOCIALS

I just read a story called: Emilie: A Tale of the French Revolution, and in this story Emilie has just escaped execution by members of the more radical jacobin party, who have seized control of the revolution and believe the Girondists must be put down. As

37. ## world history

What characteristics of a river valley civilization did Shang dynasty China (c.1500 B.C.) develop?

38. ## chemistry

When Kl and Pb (NO3)2 is combined, is this a chemical or physical change?

39. ## math

Juan Says "When you put together unequal groups you can only add" ishe correct? explain

40. ## Math Analysis

3.Each day the average toddler needs to consume 900 to 1700 calories. At most 30% of a toddler's total calories should come from fat. Describe the number of fat calories and total calories for the diet. Is a toddler following a healthy diet if s/he

41. ## ochem

You have a mixture composed of 90% benzoic acid and 10% naphthalene. Benzoic acid has a melting point of 122.4 oC, while naphthalene has a melting point of 80.2 oC. You can say with certainty that the melting point of the mixture will be: A. greater than

42. ## economics

When the price of summer tank tops falls and you buy more because they are relatively less expensive, this is called: a)elasticity effect b) deadweight loss effect c) income effect d) substitution effect

43. ## Algebra

1. Find the slope of the graph of the linear function f with f(0)=4 and f(3)=13. I have no idea how to do this.. :( __________________________________ Evaluate the function when x=3, x=0, and x= -2. 2. f(x)=-1/2x+3 my answers: 1.5, 3, 1 3. h(x)=5.5x+4 my

44. ## physics

Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 26.7 N, the weight of each magnet is 6.55 N, and the magnetic force on

45. ## physics

if hydrogen and chlorine react to form hydrogen what would be the volume of HCL that is formed if 60m cubed of hydrogen is completely used up in the reaction?

46. ## statistic

A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular job-skills training program. The cutoff "t" needed is -1.8333. The standard deviation of the

47. ## Quick Help (URGENT)

1. What percentage of teen parents live in poverty? Is it 75 percent?? 2. How can you get HIV? Unprotected sex, anal, oral, !@#\$%^&l. 3. What are the other methods of transmission of HIV? ??? Can someone check over my answers and help me with number 3?

48. ## Chemistry

Hydrogen gas, , reacts with nitrogen gas, , to form ammonia gas, , according to the equation 3H2+N2-2NH3 How many grams of are needed to produce 13.75g of NH3 ? How many molecules (not moles) of are produced from 8.26×10−4g of H2 ?

49. ## algebra 2 :(

The distribution of jamal's high school grades by percentage of course credits is A=70%; b=20%; c=10%. What is jamal's grade point average if each a is worth 4 points; each b is worth 3 points; and each c is worth 2 points?

50. ## Writing

can you use wanton in a sentence?

Which of the following two groups did NOT do battle with the Romans?

52. ## physics

a car is moving with a uniform speed of 15.0 m/s along a straight path. what is the difference covered by the car in 12.0 minutes?

53. ## Pre Calc

I already asked this question and had some help, but I am still confused on a piece of it. I'm not sure what differentiate is. I understand how you got a and b, but I am confused with c. What is differentiate and how did you get the equation dA/dx = 72 -

54. ## chemistry

AgNO3 was dissolved in water to make 10mL of solution. Then 3.0mL of that solution was used to make a new solution with a total volume of 1.000L. What was the concentration of the silver ion in the final solution?

55. ## Algebra1

Sally bought some ordinary pencils and 4 times as many special pencils. Each ordinary pencil cost \$0.20 and each special pencil cost \$0.35. She spent \$14.40. How many of each pencil did she buy? Please show me how you got your answer. Thank you.

56. ## economics

Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specification; Q = a + bP + cM + dPr Where Q is the

57. ## statistics

A research article included the following table: Mean Score on Four Questionnarie Scales Before and After the Experimental Manipulation. Questionnaire Before After Change Dominance 18.42 16.31 -2.11 Independence 17.25 21.38 4.13** Conformity 18.97 17.20

58. ## math

You need to choose between two phone plans for local calls. Plan A charges \$25 per month for unlimited calls. Plan B charges a monthly fee of \$13 with a charge of 6 cents per local call. How many local phone calls in a month make Plan A the better deal?

59. ## Chemistry

Hydrogen gas, , reacts with nitrogen gas, , to form ammonia gas, , according to the equation 3H2+N2-2NH3 How many grams of can be produced from 2.90 of ?

60. ## Physical Science: Series Circuit

There is a circuit of 2 lamps in a series. If a voltage of 6 volts is impressed across the circuit and the voltage across the 1st lamp is 2 volts, what is the voltage across the second lamp? Defend your answer I want to say that the second lamp has a

61. ## Cost accounting

Gary corporation has developed the following flexible budget formula for monthly overhead: for output of les than 200,000 units: \$36,600 + \$80 (units) for output of 200,000 units or more: \$43,000+\$80 (units), How much overhead should Gary expect if the

62. ## Prorgramming in Java

Arrays of objects will demonstrated in this lab by developing a Java application to create and maintain a store's catalog of offerings. You may use either an Array or an ArrayList. Your classes should be complete with toString and equals methods and must

63. ## chemistry

Concentrated ammonium hydroxide (aq ammonia) has a density of 0.90g/mL and is 28% by mass ammonia. Determine the molar concentration of ammonium hydroxide.

64. ## arithmetic

Find the smallest positive integer P such that the cube root of 400 times P is an integer.

65. ## hi ms.sue

About what percentage of southeast asian countries are islands? A)50% B)10% C)70% D)80% my choice is a. early cultures devolped in southeast asia through: A)extensive marititme trade B)isolated pockets of ethnic devolpment C)contact with europeans traders

66. ## w.g

why are commercial farms and subsistence farms both important in this region? A)rich soil is an abundant resource B)local people need money to buy groceries C)**people need available food: the economy needs money exports D)rurals areas have willing

67. ## Chemistry

Hydrogen gas,H2 , reacts with nitrogen gas,N2 , to form ammonia gas,NH3 , according to the equation 3H2+N2-2NH3 How many grams ofNH3 can be produced from 2.90mol ofN2 ? How many grams ofH2 are needed to produce 13.75g of NH3 ? How many molecules (not

68. ## Algebra

Find the equation of the ellipse with vertices at (-1,3) and (5,3)and length of minor 4.

69. ## social studies

what three states come together where the ohio river joins the mississippi

70. ## World History

How did geography and climate affect where people lived in ancient Egypt?

71. ## algebra

simplify the square root of 18

72. ## chem

Copper sulfate is a blue solid that is used as an algicide. Solutions of copper sulfate that come in contact with zinc metal such as the surface of galvanized (zinc-plated) steel- undergo the following reaction that forms copper metal on the zinc surface:

73. ## Spanish

I'm learning about the irregular verbs "Conocer" and "Saber" And I find it very difficult to know when to use which one. Can anyone help? Are there any tricks or tips that will help? Muchas Gracias!

74. ## Check

Answer the following questions. 1. Look up the definition of "sexual responsibility," then in your own words, write the definition. A: Obligations that you have when you know you have STIs towards the person you are engaging in sexual activity with. 2.

75. ## Math

a student opens a mathimatic book to two facing pages. The product of the page numbers is 930. Find the page numbers.

76. ## MS 300

Suppose a and b are positive integers. Write a proof by contradiction to show that if a-b is odd,then a+b is odd.

77. ## algebra

What is -17p + 12p - 11p

78. ## SOCIALS

I just read a story called: Emilie: A Tale of the French Revolution, and in this story Emilie has just escaped execution by members of the more radical jacobin party, who have seized control of the revolution and believe the Girondists must be put down. As

When a wheel is rotated through an angle of 35, a point on the circumference travels through an arc length of 2.5m. When the wheel is rotated through angles of 35 rad and 35 rev, the same point travels through arc lengths of 143 m and 9.0 x 10 m,

80. ## math

A truck can be rented from basic rental for \$50 a day. in addition you have to pay .20 cents per mile. Cont. truck charges \$20 per day in addition to 50 cents per mile. How many miles must you drive in a day to make the rental cost for basic a better deal

81. ## economics

describe how scarcity, trade-offs, and opertunity costs are involved in the energy industy in the United States

82. ## geography

what r the five themes of geography for moscow, russia

83. ## statistics

A school counselor tests the level of depression in fourth graders in a particular class of 20 students. The counselor wants to know whether the kind of students in this class differs from that of fourth graders in general at her school. On the test, a

84. ## Government

Im reading about the oublic and campaign finance reform and how many candidates have talked about campaign finance reform but nothing has really changed. Many say that poltical contributions have too much influence on elections and that it is a major

85. ## Math

given a jar contains four marbles, each a different color: red, blue, green, and yellow. If you draw two marbles from the jar, one after another, replacing the first before drawing the second,what is the probability of getting a red marble on the first

86. ## statistics

A research article included the following table: Mean Score on Four Questionnarie Scales Before and After the Experimental Manipulation. Questionnaire Before After Change Dominance 18.42 16.31 -2.11 Independence 17.25 21.38 4.13** Conformity 18.97 17.20

87. ## math/physics

A child is swinging at the end of a 3m rope. When the rope makes a 30 degree angle with the vertical, how high is she above her path's lowest point?

88. ## statistics

A research article included the following table: Mean Score on Four Questionnarie Scales Before and After the Experimental Manipulation. Questionnaire Before After Change Dominance 18.42 16.31 -2.11 Independence 17.25 21.38 4.13** Conformity 18.97 17.20

89. ## ststistics

A researcher conducts a t test for dependent means in which it is predicted that there will be a decrease in unemployment from before to after a particular job-skills training program. The cutoff "t" needed is -1.8333. The standard deviation of the

All the numbers from 1 to 99 are multiplied together. Use a pattern to determine the last digit of the product. Justify your answer.

91. ## For MUFFY

You stated on Saturday that you understood my solution as far as part a) and b) were, so let me just recap what we did. (I will not repeat the actual question) My Solution: Suppose we label the point of contact P(x,y). I bet P is in the first quadrant. but

92. ## Math

In 2002 Home depos saes amounted to 58200000000. In 2006, its sales were 90800000000. a. Write Home Depo's 2002 sales and 2006 sales in scientific notation. b. What was the percent growth in Home Depo's sales from 200 to 2006? Do all work by using

93. ## Clarify (URGENT)

In pairs (make sure you put both names on the answer sheet), create strategies and possible dialogue (min. 1 per topic) for communicating in the following situations: Saying no to sexual involvement Discussing whether or not to become sexually active

94. ## Statistics (Multinomial)

For the multinomial distribution: Show that summation of the probability mass function across all possible values equals 1. Show via summation of the probability mass function that the expected value of Y_i = n * p_i The textbook that I'm using left the

decide whether the graphs of the two equations are parallel lines. a. y=3x+2, y=1/3x+4 b. 3y=15x+4, y=5x+1

96. ## math

Suppose that pizzas can be ordered in four sizes (small, medium, large, and Illini-size), with three crust choices (thin, thick, and Chicago style), four choices of meat (sausage, pepperoni, hamburger, and none) and two types of cheese (regular or double).

97. ## Algebra

I'm trying to solve this Pythagorean Theorom problem. x^2+(2x^2)=32^2 which becomes 5x^2=1024 I don't get how the x^2 and the 2x^2 combine to get 5x^2. I think it should be 3x^2. Can you explain? Thanks!

98. ## world geography

Thailand once served as a buffer state to prevent tensions between: A)**colonial governments in the philippines and indochina B)hindu and buddhist religious factions C)french and british colonial government D)vietnamese communist leaders. east timors

99. ## Chem

What volume of NO measured at 1.1 atm and 1100 C, can be produced from 10.0 L of NH3 and excess O2 measured at the same temperature and pressure? Here is the balance equation 4NH3+3O2+4NO+6H20 So far this is what I have: (1.1 atm)(10.0L)

100. ## algebra

8th Grade Algebra (AP) f(x)=-3x Model the rule with a table of values and a graph.

101. ## Algebra1

I have 16 coins in my pocket, some nickles and some quarters. If I have a total of \$2.20, how many of each coin do I have? Please help me with this problem. Thank you.

102. ## science

What gas can you find in the refriderator

103. ## anatomy

project please helppp me create a road map/travel guide throught the body starting from the head finishing at your toes.be creative with how you represent cavities. include introduction and superior or cranial or inferior or caudal. and 2 body cavities

104. ## math

JUAN SAYS "WHEN YOU PUT TOGETHER UNEQUAL GROUPS YOU CAN ONLY ADD IS HE CORRECT? EXPLAIN

105. ## english

why "deemphasizing negative test results in a report on your product idea" ia ethicial

106. ## HEALTH

how would I do a power point on the to distinguish between these healthcare setting; • Hospital categories • Ambulatory care settings • Behavioral health care facilities • Types of long-term care • Managed-care models • Home-care service •

107. ## Algebra

When you're breaking down the square root in the quadratic formula into several parts- say it was the originally the square root of 80 so you break it down to square root of 4 and square root of 20-would the results be added or multiplyed? Because I know

108. ## Statistics

I'm not sure how to do #3 in this PDF: tinyurl [.][com][slash] yefzpv8

109. ## Geography

21. How is Western Europe able to provide food for its dense population? a. The region imports most of its food supply b. Large, densely populated agricultural regions harvest crops year-round c. Sophisticated farming methods are used to produce high crop

110. ## Gen 105

How can you use study techniques recommended for your personality type and strongest intelligence(s)to function best in distance learning enviroment

111. ## Literature

Can anyone PLEASE find me a short summary of these poems? the forsaken merman-matthew arnold the portrait- robert browning

112. ## Algebra 1

Name the largest negative integer.

113. ## Geometry

I really need help with this. Explain how the formula for the area of a triangle can be determined by using the formula for the area of a parallelogram.

decide whether the graphs of the two equations are parallel lines. a. y=3x+2, y=1/3x+4 b. 3y=15x+4, y=5x+1

115. ## Pre Calc

I have no idea how to do this problem I thought you would have to do something with the diagonals but not sure... The parallel sides of a trapezoid are 4 and 10 centimeters long and the oblique sides are 8 and 12 centimeters long. Fi9nd the angles and the

116. ## math

Mickey Mouse will be four score years in 2008.Donald Duck is six years younger than Mickey Mouse. In what year was Donald Duck born ?

117. ## calculus

Find the lim x->infinite (x/[3x+5]) where [] denotes the greatest integer function use the squeeze theorem.

118. ## statistics

A researcher interested in relationships developed a questionnaire that measures the degree of affection adult men feel for their fathers. She has found that for the general population the distribution is skewed to the right, the mean degree of affection

119. ## english

Revise the following sentences to make one of the existing sentences subordinate the other? The hurricane destroyed some oil rigs. Fuel prices rose.

120. ## Math

I need 3 different names for the number 15 and 999

121. ## Social Studies

how did geography affect the development of African kingdomes?

122. ## health

compare 2 countries to the US in way people eat type of food. include heart disease information

123. ## HIS 115

What is the notion of predestination and how did it impact New England settlement? How did religion play a crucial role in the lives of New England women?

124. ## science

what are two sorces of light??

125. ## psychology

Neurologists involved in animal research studies of cognitive function see analogies in humans that suggest mental exercise reduces loss of brain mass. Which of the following statements describe their findings? -Older adults who continue complex mental

126. ## Math

The length of a rectangle is twice the width. The area is 18yrd squared. Find the lenght and the width.

127. ## Algebra 1

Simplify and explain: -5-(-3x)+3x+4x-(-12)=

128. ## brookville elementary

regroup 1 ten for 10 ones. 1. 32=____tens_____ones. 2. 47=____tens_____ones

129. ## Math

Solve this system of simultaneous equations in order to express V in terms of Vo, x, and a (but not t). x=Vot+(1/2)at^2 v=Vo+at

130. ## math

How do I solve z+9/2 + z-3/3=6

131. ## science

can anyone help me answer this question or give me websites can someone tell what is the shield volcano environment like in or around the volcano. please help and thank you

132. ## Social Studies

Who were the first Native American groups to settle in Ottawa, Illinois? Where did they come from? What kind of people were they?

133. ## AP Calculus

find f'(2) given g(2)=3, h(2)=-1, h'(2)=4, and g'(2)=-2 f(x)=g(x)h(x) I'm just not understanding how to start this at all and what it wants me to derive when I don't know the function

134. ## SraJMcJin

Hello, I was wondering if you could read my essay and tell me what you think i could do to improve on it. The problem is, I do not want to put it on the internet, so is there a way I can email you my essay?

135. ## math

evaluate the integral: integral of ((1-x)/x)^2 dx

136. ## statistics

What is a great topic to do a research paper on and apply statistics?

137. ## Algebra 1

Solve: x+x=0 3y+(-2)=7

138. ## math

-68-94-120 rule -

139. ## algebra

simplify the expression and write it without denominator .. a^2 b^-1/ab^-3

140. ## algebra (slope)

find the value of y so that the line passing through the two points has the given slope. (8.y), (2,-3), m=1/2

141. ## MATH 116

HOW DO YOU KNOW WHEN AN EQUATION HAS INFINITELY MANY SOLUTIONS AND WHEN AN EQUATION HAS NO SOLUTION??

142. ## Writing

use the word legendary in a sentence

I have to use the word inconito as an adjective in a good sentence, and sugestions?

144. ## Social Studies

Why was Africa an important trading center?

145. ## Research Writing

Ineed help finding the thesis for A Nation Apart and what strategies are used to formulate his argument? What makes the argument viable and compelling?

146. ## Psychology

What is meant by this question: What is the theory underlying ANOVA? I don't understand what the question is asking and cannot find an exact answer.

am doing my study guide for chem test - I cant find a good understadable answer for these 3 1. What is your definition of electrolysis? 2. How do you separate pure substances? 3. My book says mayonnaise is homogenous; teacher told the class it was

148. ## physical

name and describe 4 benefits of health,fitness and wellness

149. ## Math

A customer want to make a teepee in his backyard for his children. He plans to use lengths of PVC plumbing pipe for the supports on the teepee. The teepee is to be 12ft. accross and 8ft tall. How long should the pieces of PVC plumbing pipe be?

150. ## eng and sci

Q1. why different animals can see in many different many ways? Q2.What is adjective phrase? Q3.What is present continuous? Thanks.

151. ## Humanities

What is the relationship of science and religion in the 21st century?

152. ## Algebra 1

Does x-y=x+(-y) for all numbers x and y?

153. ## A.P World History

Describe the major classical period trading patters within and among China India, and the Mediterranean.

154. ## algebra

find the value of y so that the line passing through the two points has the given slope. 1. (6,y), (3,3). m=2/3 2. (8,y), (2,-3). m=1/2 I know the formula: y2-y1/m2-m1 and I've been trying to do this for a long time now, but I still don't get it. please

155. ## Math

Simplify (7x8)-2x7+7 Need to show work

156. ## Math

Ms. Sue Is it 56-21=35 Or is it 56-14=42 then 42+7=49

fe0+O2=fe2o3

158. ## INB 205

I am looking for the answers for week seven

159. ## health

Strategies to improve patient intake

The quotient of julians age and 3 is 4 what is julians age in years

161. ## analogies

leaped is to jumped as run is to j_____ selected is to chose as argued is to f_______

162. ## Math

Solve for t: y=vt+(1/2)gt^2

Can you help me solve this equation. 6n-(-2n)+8

164. ## World History

How did the ancient Egyptians make use of the environment to meet their economic and cultural needs?

165. ## catholic religion

what are the 3 actions in Ezekiel that lead to spiritual death?

166. ## english

i am working on this for 2 hours and i cant figure it out we have to rearrange the letters to get a word the letters are c,v,d,e,o,s,r,i

167. ## math

Consider the set of northwestern states or provinces {Montana, Washington, Idaho, Oregon, Alaska, British Columbia, Alberta}. If a person chooses one element, show that in three yes or no questions, we can determine the element.

168. ## earth

When combining atoms, how do i use the balloons and letter notations to show the product formed?

169. ## Characteristics

can someone pleasse name some personal characteristics to survive an ordeal.

170. ## biology

what can be a represent as a necleus in a room. and WHY

171. ## Education

what are some good, fun, kid like websites, that teach you how to spell words?

172. ## writeacher psydag bopursley

i just wanted to say a big big thankyou ! for helping me with my assignment. :)

173. ## Math

how do you find the x-intercepts and the y-intercepts to this: f(x)=x^2-3x+1

How do you "write an equivalent representation" 2 thousands, 6 hundreds, 2 tens, and 1 one.

175. ## social studies

what was the earliest major influence upon european culture, government and economy

176. ## science

who is the man that first developed the microscope in the 1600's??

177. ## world his

what was the reason the prophet Muhammad forbid pictures to be made of him ?

178. ## math

draw a pattern found in your house

179. ## English

I have to write an essay about something that has negative social connotations but that I can argue positively for, but it cannot be something obvious like spiders. An example would be spiders are scary and people do not like them, but they help control

180. ## math

The area of a driveway. What metric unit would I use to figer outthe proublum

how many words can you find with corp in them?

182. ## math

how do I find the numerators when I have 2 fractions with unlike denominators and the simplified answer you get when adding them?

183. ## social studies

Why were wars fought over Jerusalem?

184. ## Math

How do I evaluate this?:2+1/2[4]=

185. ## criminology

what are the assumptions inherent in the social problems perspective on crime?

186. ## math, slope

how to find average slope: you are given points of: (0,0) (20,.166) (40,.181) (60,.194) (80,.204) (100,.210) (120,.214) how do i find average slope of all of these?

187. ## science

what is the last skill i have inference predition obsevation and classification?

find 72% of 200 and i need to show work