# Questions Asked onOctober 13, 2015

1. ## Calculus 1

Find the numerical value of each expression. (Round your answers to five decimal places.) (a) cosh 9 (b) cosh(ln 9)

2. ## Calculus 1

Find the linear approximation of the function g(x)=cube root(1+x) at a=0.

3. ## Physics

When it comes to a ballistic pendulum, why would it be justified to say that the momentum in the horizontal direction is conserved over the collision interval? I think it's because of the law of conservation of linear momentum, but I feel like there is

4. ## math

these marbles are placed in a bag and two of them are randomly drawn what is the probability of drawing two pink marbles if the first one is placed back in the bag before the second draw thebag has 10 marbles.2 yellow.3 pink.5 blue

5. ## Stats

Which of the following are binomial experiments? (more than one is possible) 1.) A store finds that 32% of people who enter the store will make a purchase. During a day, 50 people enter the store. The random variable represents the number of people who

6. ## Stats

At a major International Airport, 0.49 of the flights arrive on time. A sample of 12 flights is studied. What is the probability that more than 3 of them arrived on time? Write only a number as your answer. Round to 2 decimal places (for example 0.24). Do

7. ## Math

1. Write the converse of the following true conditional statement. if the converse is false, write a counterexample. If a < 10, then a < 15 a) if a > 10, the a > 15; false. Counterexample: a=12 and a

8. ## Chemistry

If 46.1 g Cu at 11.6 C is placed in 85.0 g H2O at 72.4 C, what is the final temperature of the mixture? (specific heat capacities: Cu: 0.385 J/gK Water: 4.184 J/gK)?

9. ## Chemistry

Is the decomposition of lead(ii)nitrate a redox reaction? Equation with O.S. underneath 2Pb(NO3)2 => 2PbO + 4NO2 + O2 +2 -1 +2-2 +4-2 0 I got all the o.s. but I am still confused as to whether or not this makes it a redox reaction. Do the individual

10. ## Calculus

If a ball is thrown vertically upward with a velocity of 96 ft/s, then its height after t seconds is s = -16t^2 + 96t. What is the velocity of the ball when it is 128 ft above the ground on its way up?

11. ## chemistry

Consider the following balanced thermochemical equation for a reaction sometimes used for H2S production: 1/8 S8 (s) + H2 (g) ¨ H2S (g) ƒ¢Hrxn = -20.2 kJ (a)Is this an exothermic or endothermic reaction? (b)What is ƒ¢Hrxn for the reverse reaction?

12. ## pre-cal

find the constant c such that the denominator will divide evenly into the numerator x^4+10x^2+c/x+i

13. ## Physics

The Asian Silver Carp is an invasive species of fish which has infested a number of American rivers. The disturbance of passing boats has been known to make these fish leap large distances out of the water. One such fish leaps with an initial velocity at

14. ## physics

If 200 cm3 of tea at 95°C is poured into a 150-g glass cup initially at 25°C, what will be the common final temperature T of the tea and cup when equilibrium is reached, assuming no heat flows to the surroundings

15. ## achimota secondary school

when a certain number is added to 11 and the result is multiplied by 3, the final result is 45. Find the number.

16. ## English

Which Of The Following Sentences Uses The Subjunctive Mood Correctly? A: On Most Days, He Wished He Were An artist B: Knowing He Couldn't Get Far By Walking, He Took A Cab Instead*** C: Even When He Was Young, He Ate Too Much D:When He Saves Enough Money,

17. ## math

Please check answers 1. Michael, a freelance editor, charges the rates shown in the table below to edit manuscripts. The cost per page increases as the quality of editing improves. Michael also gives a 5% discount if the entire amount is paid up front.

18. ## U.S. History

1. Explain why many Americans blamed Spain for the explosion of the USS Maine. A: Before the USS Maine exploded, the United States was trying to expand as a world power. Thus, many Americans blamed Spain for the explosion of the USS Maine because it gave

19. ## physics

a stone is dropped from the top of a cliff. it is seen to hit the ground 3.5 seconds later. how high is the cliff

20. ## algebra

0.000027 ÷ 0.000009 Requirements: • Explain how to use scientific notation to solve the problem. • Describe how to divide numbers written in scientific notation. • Give you final answer in simplest form. (5 points) i already have the answer,0.000027

21. ## Math

You make cards and sell them for \$2.50 each. It costs \$1.15 to print each card. You also pay \$50 for supplies. How many cards must you sell to meet the cost for making the cards (you break even)? Round up to the next whole card. A. 20 cards B. 37 cards C.

22. ## Calculus 1

If tanh x=4/5, find the values of the other hyperbolic functions at x. sinh x= cosh x= coth x= sech x= csch x=

23. ## physics

A softball having a mass of 0.25 kg is pitched at 95 km/h. By the time it reaches the plate it may have slowed 10%. neglecting gravity, estimate the average force of air resistance during a pitch. if the distance between the plate and the pitcher is about

24. ## chemistry

It was found that argon effused through a membrane in 24 hours, and an unknown gas diffused through the same membrane in 22.1 hours. What was the molecular weight of the gas?

25. ## Math

Lisa can shovel her driveway in 30 minutes and Tom can shovel his driveway in 40 minutes. How long will it take them to shovel the driveway together?

26. ## Defective probability i need help

If 3% of electric bulb produced by a company are defective find the probability that in a sample 100bulbs (a) 0 (b)1 (c)2 (d)3 bulbs are defective??

27. ## history

Describe the primary economic activity for each of the three colonial regions: the New England colonies, the Middle colonies, and the Southern colonies. Explain how the geography of each region helped determine its economy. I don't know how to explain it

28. ## math

maria thinks of a number between 30 and 35. it has a greater number of ones than tens. what is the number ?

29. ## Finite

Assume that the pond contains 120 fish: 97 green, 22 yellow, and 1 red. A contestant pays \$0.60 to randomly catch one fish and receives \$0.40 if the fish is green, \$0.95 if the fish is yellow, and \$11.00 if the fish is red. How much (on average) does the

30. ## U.S. History (Answer Check)

1. What was the purpose of the Open Door policy? A: The purpose of the Open Door policy was to allow each foreign nation in China to trade freely in the other nations' spheres of influence. 2. What were the arguments for and against establishing an

31. ## Physics

The place kicker on a football team kicks a ball from ground level with an initial speed of 22.40 m/s at an angle of 15.0° above the horizontal. How far does the ball travel in the x-direction before it lands on the ground again? You may neglect air

32. ## U.S. History

1. How did the desire to expand into new markets help push the United States to extend its influence into the Pacific? A: The desire for new markets led to trade with Japan and the annexation of Hawaii. 2. How did Americans' opinions on overseas expansion

33. ## math

these marbles are placed in a bag and two of them are randomly drawn what is the probability of drawing two pink marbles if the first one is placed back in the bag before the second draw the bag has 10 marbles.2 yellow.3 pink.5 blue

34. ## science

Write down images formed by the following mirrors. a)concave b)convex c)plain mirror

35. ## math

There are 3 pink marbles, 2 yellow marbles, and 5 blue marbles in a bag. What is the probability of drawing 2 pink marbles?

36. ## LW Magnate School Aba. Nigeria

The wooden frame of a picture is 20cm long and 16cm wide. If the wood is 1.82cm wide, find the size of the picture. My working: The picture frame= L x W = 20x16= 320cm Wood frame= 1.82*2= 3.64cm 320cm less 3.68cm = 316.36cm.

37. ## Statistics

Find the z-score for which the area to its left is 0.46 . Write only a number as your answer. Round to two decimal places (for example: 0.81).

38. ## chem

0.020 mol of each SO2 and O2 and So3 is placed in a 1.0 L flask and allowed to come to equilibrium. The equilibrium of [SO2] is found to be 0.0080M. What is the value of keq for the reaction: 2SO2+O2 2SO3

39. ## Physics

A cargo plane is moving with a horizontal velocity of vx = +223 m/s at a height of y = 980 m above level ground as shown in the figure below when it releases a package. Ignoring air resistance, how much time will it take the package to reach the ground?

40. ## Physics

A car is traveling around a horizontal circular track with radius r = 270 m as shown. It takes the car t = 66 s to go around the track once. The angle θA = 19° above the x axis, and the angle θB = 56° below the x axis. 1What is the magnitude of the

41. ## programing in basic

the computer will accept what statement, if four statements are entered with the same number?

42. ## Math

2/3>3/ number that makes the statement true.. I am confused

43. ## maths

meeta and vikas each ate 5/12 parts of a cake. what portion of the cake was left?

44. ## chemistry

A 49.3 g sample of ethylene glycol, a car radiator coolant, loses 624. J of heat. What was the initial temperature of ethylene glycol if the final temperature is 32.5°C (c of ethylene glycol = 2.42 J/gK)? 624= 49.3 x 2.42(T-32.50) T = 37.73 = 38degrees is

45. ## maths

Suppose that a state university has to form a committee of 5 members from a list of 20 candidates out of whom 12 are teachers and 8 are students.If members of the committee are selected at random,what is the probability that the majority of the committee

46. ## Geometry

The area of a triangle is 30cm^2. What is the base of the triangle if the height is 6 cm?

47. ## English

What does "lay upon sinner his sin" mean?

48. ## Math

Is the equation true, false, or open? 4y+8=6y+3 a. True; the expressions are the same for all values of the variables. b. False; the expressions are never the same. c. Open; there is a variable.*** *** - My Answer

49. ## health

which of the following plays a role in determaning a persons weight (select all that apply) herdity activity level body mass index body composition

50. ## precalc

prove each identity 1) (sec - cos) / tan = sin 2) (csc^2 - 1) / csc^2 = cos^2 3) (sin/csc) - 1 = -cos/sec

51. ## algebra

0.000027 ÷ 0.000009 Requirements: • Explain how to use scientific notation to solve the problem. • Describe how to divide numbers written in scientific notation. I am re posting again because i need more help then what i got because i don't understand

52. ## science

1.)Ovaries contain A.)Sperms & produce estrogen B.) Sperms & produce testosterone C.)Eggs & produce estrogen D.)Eggs & produce testosterone 2.)The testes produce A.)Sperm & estrogen B.)Sperm & testosterone C.)Eggs & estrogen D.)Eggs & testosterone 3.)After

53. ## physics

A person pushes a 16.5-kg shopping cart at a constant velocity for a distance of 36.6 m on a flat horizontal surface. She pushes in a direction 27.9 ° below the horizontal. A 48.1-N frictional force opposes the motion of the cart. (a) What is the

54. ## U.S. History

1. Explain why Secretary of State James G. Blaine convened the Pan-American conference in 1889. A: James Blaine convened the Pan-American conference because he wanted to create a customs union between Latin America and the United States. A customs union

55. ## Math

What is 3.56 x 10 power to -5 in standard form? 356,000 3,560,000 0.00356 0.0000356****

56. ## Math

David runs 8 meters in 1 second,16 meters in 2seconds,24 meters in 3 seconds and 32 meters in 4 seconds.Determine whether David's distance is proportional to the number of seconds he runs by graphing on a coordinate grid.explain your reasoning

57. ## math

describe a real world situation that is modeled by dividing two fractions or mixed numbers.

58. ## science

a boat starts sailing on monday 10:00 at harbour A and sail 600 km due north.later it turns due east for a further 420 km to reach harbour B on tuesday at 12:00.what is the total distance travelled from A to B

X-3/x=3/5

60. ## Calculus

The height, s, of a ball thrown straight down with initial speed 32 ft/sec from a cliff 48 feet high is s(t) = -16t^2 - 32t + 48, where t is the time elapsed that the ball is in the air. What is the instantaneous velocity of the ball when it hits the

61. ## math

This is how the problem is like 2m^2p m=-5 p= -4 I try to solve it like this. 2*-5^2*-4= 200 Somehow I'm still incorrect. Can someone help?

62. ## precalc

prove the identity (1 + tan x) / sin x = csc x + sec x

63. ## math

Allana used Fraction 3 over 5 yard of fabric to make a scarf. Can she make 2 of these scarves with Fraction 1 and 7 over 10 yards of fabric, and why? No, because the quotient of Fraction 1 and 7 over 10 Division sign Fraction 3 over 5 is 1 and 1 over 50

64. ## Math

Is the equation true, false, or open? 4y+8=6y+3 a. True; the expressions are the same for all values of the variables. b. False; the expressions are never the same. c. Open; there is a variable.

65. ## English

“The Women's Rights Movement, 1848-1920. Web. 13 Oct. 2015. Is this considered a in text citation?

66. ## Math

Allen has a piece of rope that is 84 inches long. He cuts off one piece that is 43 3/4 inches long and another piece that is 31 5/8 inches long. What is the total length of the remaining piece of rope after the two cuts are made?

67. ## Math

A rectangular box is to have a square base and volume of 78 feet cubed. If the material for the base costs \$.30 per square feet, the material for the sides costs \$.10 per square foot, and the material for the top costs \$.20 per square foot. Determine the

68. ## Math

Is the equation true, false, or open? 4y+8=6y+3 a. True; the expressions are the same for all values of the variables. b. False; the expressions are never the same. c. Open; there is a variable.*** *** - My Answer

69. ## science

A drop of mass 2.0 g falls from a cliff of height 1.0 km. It hits the ground with a speed of 50.0 m/s. The work done by resistive force is 1. -10j 2. -12.50j 3. -15.5j 4. -17.50j solution:- I think change in kinetic energy can give me work done. B ut how

70. ## vvc

In a championship basket ball game,Paula made twice free throws as Maria .If the total number of free throws made by both women was 12 find how many free throws Paula made made?

71. ## Math

Which of the following equations is linear? A.y = x^2 + 5x -2 B.y = 2x + 5 C.y = x^3 + 1 D.y = x(x + 3)

72. ## science

A drop of mass 2.0 g falls from a cliff of height 1.0 km. It hits the ground with a speed of 50.0 m/s. The work done by resistive force is 1. -10j 2. -12.50j 3. -15.5j 4. -17.50j solution:- I think change in kinetic energy can give me work done. But how to

73. ## math

these marbles are placed in a bag and two of them are randomly drawn what is the probability of drawing two pink marbles if the first one is placed back in the bag before the second draw thebag has 10 marbles.2 yellow.3 pink.5 blue

74. ## Math geometry

Given AB intersects BD

75. ## Stats

In an elementary school, 29% of children wear glasses. Suppose that a random sample of 31 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.

76. ## Stats

Suppose that X is a binomial random variable with n=10 and p=.29 Find P(2). Write only a number as your answer. Round to 4 decimal places (for example 0.1489)

77. ## science

A rock sample weight 60N on earth. what would be the weight of the same rock on moon?

78. ## Stats

The probability that a randomly selected individual in a certain community has made an online purchase is 0.40 . Suppose that a sample of 13 people from the community is selected, what is the probability that at most 3 of them has made an online purchase?

79. ## Simple Interest

Quincy's property tax is \$665 and is due on April 25. He does not pay until July 19. The county adds a penalty of 9.9% simple interest on unpaid tax. Find the penalty Quincy will pay. (Assume that there are 365 days in a year. Round to the nearest cent.)

80. ## chem

A 3.00 L flask contains 6.00M H2, 6.00M Cl2, 3.00M HCl at equilibrium. An additional 15 mol of HCl is injected into the flask. What is the [Cl2] when equilibrium is re- established?

81. ## chemistry

A reaction mixture of 4.0 mL of 0.002 M SCN- and 5.0 mL of 0.002 M Fe3+ is diluted to 10.0 mL with 0.1 M HNO3 to form the blood-red FeNCS2+ complex. The equilibrium molar concentration of the FeNCS2+ determined from a standardization curve is 1.5x10^-4

82. ## college algebra

r75x^8/121y^12

83. ## Math

1.)If a ping pong falls from the top of a building that is 168 feet high, how many seconds will it take the ball to hit the ground? remember, the formula for distance is D=16t2 A.)1 B.)3.2 C.)10.5 D.)16

84. ## Math

How could you use the product of 108 and 4 to find the product of 324 and 4

85. ## Statistics

Find z 0.44 . Write only a number as your answer. Round to two decimal places (for example: 0.81).

86. ## Statistics

The z-scores that bound the middle 35 % under the standard normal curve are z = -a and z = a. Find the value of a. Write only a positive number as your answer. Round to two decimal places (for example: 0.81).

87. ## Algebra

RICHARDS age in 15 years will be twice what it was 7 years ago. How old is richard

88. ## trignometry

At 350 feet from the base of a cliff, a surveyor sights the top of it at an angle of 300 301. Find the cliff from horizontal.

89. ## Chemistry

There is a question on my assignment that's asks how many moles of atoms are in x mol of CO2 (and a few others). Let X represent 5x10^-4. How do I do this? Teacher didn't really teach us this. I know in one mol of CO2 there is 2 moles of oxygen atoms, so

90. ## Math

What is 0.68 written as a simplified fraction? My answer is 17/25. What makes the statement true? 7^-2= My answer is 14. What is 308,745,538 is scientific notation? My answer is 3.1 x 10^8. What is the solution to (3 x 10^2) x (5 x 10^5)written in

91. ## Statistics

Find the z-score for which the area to its right is 0.65 . Write only a number as your answer. Round to two decimal places (for example: 0.81).

92. ## Math

2.)The volume of a box can be found by multiplying the length times width times height of a box(V=lwh).If the volume of a box is 1,300 cubic inches, & all its its dimensions are equal, what is the side length of the box in inches? A.)10.9 B.)36.1 C.)162.5

93. ## Math

Who are some famous homosexual mathematicians?

94. ## college algebra

SELLING PEANUTS-samuel operates a small peanut stand. He estimates that he can sell 600 bags of peanuts per day if he changes 50 cents for each bag. He determines that can sell 20 more bags for each 1 cent reduction in price. A. What would his revenue be

95. ## Maths

I need some help with my maths questions please! What angle does the tangent to the curve y=x^4-x^3+7x make with the positive direction of the x-axis at the point where x=2? Find any x values for which the gradient of the tangent to the curve y=x^2-3x-1 is

96. ## chem

Keq for the reaction 2HI H2 +I2 has a value of 1.85x 10^-2 at 425 degrees celsius. If 0.18 mol of HI is placed in a 2.0 L flask and allowed to come to equilibrium at this temperature. What will the equilibrium of [I2} be?

97. ## science

a crew of astronauts leaves earth on a Monday , lands on the moon on a Thursday. they and on the side of the moon facing away from the earth. on what day would the astronauts be able to see earth from the moon, explain

98. ## MATHS PROBLEM

30% OF A BOOK IS READ,154 PAGES LEFT TO READ.HOW MANY PAGES ARE THERE IN THIS BOOK?

99. ## Math

Identify the relation that is also a function. A. {(4, 2) (4, -3) (9, 3) (9, -3)} B. {(1, 0) (2, 3) (3, -1) (1, 5)} C. {(0, -1) (1, -2) (2, -3) (-1, 2)} D. {(5, 4) (5, 1) (5, 3) (0, 5)} Can some one explain?? So i can do functions on my own ://

100. ## Math

Mark has 37 markers. He found 58 more pencils. How manypencils foes Mark have now? Write a sentence that represents the problem. Use aa symbol to represent the unknown.

101. ## Chemistry

The apparatus contains methane and oxygen at a temp of 383K. Here is the reaction: CH4(g) + 2O2(g) --> CO2(g) + 2H2O(g) solve for final pressures of all species and the final total pressure, For CH4 the volume = 1.164L the pressure = 6atm For O2 the volume

102. ## math

An ant weights about 2*10 to the fifth power pounds. There are about 1*10 to the 15 power ants on Earth. How many pounds of ants are on Earth

103. ## Revolution and frequency i need help physics

A spring makes 60 revolution in 15mins calculate the period and the frequency of the revolution??

x-3/x=3/5

105. ## school of the nation

Marie gets \$500 pocket money each day,she spends \$300 each day. Write fractions to show the money spent and money left: (1) at the end of 1 day (2) at the end of 1 week

106. ## Algebra 2

Create an explicit equation for each recursively defined sequence below a1=17,an+1=an-7

107. ## Math

4x(x-2)=(2x+1)(2x-3) need help to solve

108. ## Math

These marbles are placed in a bag and two of them are randomly drawn. What is the probability of drawing 2 pink marbles if the first one is placed back in the bag before the second draw? There are 3 pinks, 2 yellows, and 5 blues.

109. ## Social Studies( I REALLY NEED HELP!!!)

How did technological advances in agriculture allow early civilizations to develop and sustain themselves over long periods of time? PLEEEEEASE HELP!!!!!!!! I AM STUMPED!!!!!

110. ## Science

which of the following includes the variables needed to demonstrate momentum A. mass and velocity B. mass and acceleration C. time and velocity D.velocity and acceleration I think the answer is A

111. ## Physical Science

What happens to the kinetic energy of a snowball as it rolls across the lawn and gains mass?

112. ## Science

An air mass of 25°C with a dew point of 10°C has a starting elevation of sea level (0 meters) encounters a mountain range with a peak elevation of 3,000 meters above sea level. At what elevation is the Lifting Cloud Level?

113. ## English

What type of language is used in Carol Ann Duffy's "Elvis's Twin sister"? I know a bit of slang is used at the start but need to go more in depth. What is the tone of the Poem "Elvis's Twin Sister"?

115. ## Calc

A plane flying horizontally at an altitude of 2 mi and a speed of 420 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 5 mi away from the station.

116. ## pre-cal

find the value of K such that (x+1) is a factor of x^3-kx^2+x+5

117. ## U.S. History (Check)

1. What was the purpose of the Open Door policy? A: The purpose of the Open Door policy was to allow each foreign nation in China to trade freely in the other nations' spheres of influence. 2. What were the arguments for and against establishing an

118. ## physics

a 2.00 * 10^5 kg lunar landing craft is about to touch down on the surface of the moon

119. ## Chemistry

Acetone is an important chemical solvent and is used at homes as a nail polish remover. Chemical analysis shows that acetone is 62.0%C, 10.4%H, and 27.5%O by mass. A. Determine the empirical formula of acetone. B. In a separate experiment, the molecular

120. ## physics

The ball is in the pool (point A) to the edge of which is an observer (point B). A minimum distance ball from the edge of the pool is 36 m (point C), and an observer to that point has to walk along the edge of 42 m. a) If the speed of walking along the

121. ## Chemistry

How many hydrogen atoms are in a 15.00 mg sample of glucose? (C6H1206)

122. ## st Francis Methodist math

26 200correct to 3 significant figures. What is the smallest possible number

123. ## math

An art teacher has 1 1/2 pounds of red clay and 3/4 pound of yellow clay. The teacher mixes the red clay and yellow clay together. Each student in the class needs 1/8 pound of the clay mixture to finish the assigned art project for the class. How many

124. ## Math

Do you need to regroup to find 73-35?

125. ## chemistry

Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions of dollars everyday. Although the actual process also requires water, a simplified equation (with rust shown as iron(III) oxide (Fe2O3) is: 4Fe(s)+3O2(g)

6e^3t=9e^2t

127. ## biological psychlogy

identify one genetic method and explain how this method is used to study genetic factors providing two answers. I have the method: adoption studies iI'm just looking for a way to examples to explain how it is used

128. ## Science

which of the following includes the variables needed to demonstrate momentum A. mass and velocity B. mass and acceleration C. time and velocity D.velocity and acceleration I think the answer is A

129. ## English

Which of the following is an example of a run-on sentence? Baseball is an amazing sport to play and to watch. Nothing beats the thrill of the sport on the diamond. I hope you like watching baseball, I really love it. If you don’t watch it, you don’t

130. ## Math

What is 5-16 tenths?

131. ## Algebra 2

Solve the following sequence systems algebraic ally x+2y=17 x-y=2

132. ## Ochem

Could someone explain this? Thanks! Which of the following is a correct IUPAC name? a. 3-bromo-2-chlorotoluene b. 6-bromo-4-chlorotoluene c. 2-chloro-3-bromotoluene d. 2-chloro-4-bromotoluene

133. ## physcial science

8. which picture(s) would best represent atoms in the gas of a neon sign?

134. ## Chemistry

what is the minimum mass of ice at 0.0C that must be added to 1.00kg of water to cool the water from 25.0C to 12.0C. the heat of fusion is 333J/g; specific heat capacities of ice = 2.06J/gK; the heat capacity of water is 4.184J/gK. I have no clue where to

135. ## algebra

Using the table below, find how long it will take the jet to travel 5060 miles. Hours 1 2 3 4 Miles 460 920 1380 1840 Can some one help me, I do not understand.

136. ## Math

Idk what i have to do. Add or subtract. The question is Blake watch one sixth of a movie Friday three fifth on Saturday and the rest on Sunday. What fraction did he watch on Sunday

137. ## Global

Question: What is the importance of institution on human prehistory? My work so far: DEFINITION: Institution: A long lasting pattern of organization in a community. My Question: What does the definition mean when it says "pattern of organization in a

138. ## ottawa river

Melissa collected three kinds of autumn leaf when she was out walking today el maple and oak she has two times as many Maple Leafs aslm lease and 5x as many oak leaf as Emily all together she has 32 leaves how many of each kind does she have I need to know

139. ## Chemistry

A sample of nitrogen gas is collected over water at a temperature of 23 degrees C. What is the pressure of the nitrogen gas if the atmospheric pressure is 795 mm HG? Anser in units of mm Hg.

140. ## algebra

6b^3 + 9b^2 - 12b Which represents the polynomial in factored form? (A) 3b^3 (2b^2 + 3b - 4) (B) 3b (2b^2 + 9b^2 - 12b) (C) 3b^2 (3b^2 + 6b - 9) (D) 3b (2b^2 + 3b - 4)

141. ## Chemistry

Which of the following procedures involves a physical change in one of the substances? separating an oil from solution by cooling it

142. ## african studies

what is the shape of the Rift Valley

143. ## MATHS

On a building plan,the lenght of a 65m-long buliding is 13cm.Another building on the same plan has lenght 55mm.What is the actual length of this building?

144. ## Math

Which equation is an identity? a. 7-(9x+3)=-9x-4 b. 6m-5=7m+5-m c. 10p+6-p=12p-3(p-2) d. 3y+2=3y-2

145. ## science

does water ionize to hydrogen and hydroxide

146. ## Math

Which equation has no solution? a. 7v+2=8v-3 b. 3x-5=3x+8-x c. 4y+5=4y-6 d. 7z+6=-7z-5

147. ## physics

A pendulum bob of mass 100g is pulled to a vertical height of 5m from the horizontal and released.calculate th maximum potiential energy. 2.The maximum speed of the bob

148. ## Chemistry (Check)

Nitrogen combines with oxygen to form a variety of compounds. One of these compounds is called nitrous oxide or "laughing gas." What is the formula of nitrous oxide if this compound is 63.65% N and 36.35%O by weight? I got N2O

149. ## Algebra

I need to find the rule of the sequence. n 2 3 4 5 t(n) 75 1875 46875 1171875 I know the bottom is times 25, but I don't get how to do a rule that is t(n)=

150. ## Chemistry

A compound frequently used as a high-temperature lubricant has the formula MS2, where M represents some metallic element. If this compound is 40.06% sulfur by mass, what is the identity of the metal M? I'm confused on how to figure this out.

151. ## chemistry

A balloon is filled to 1.000L at the bottom of the Marianas Trench, where the pressure exerted on it is 1065 atm and the temperature is 2°C, and taken to Columbus, where the pressure is 0.967 atm and the temperature is 30.00°C. What is its new volume?

152. ## chemistry

Electrolysis of water produces hydrogen gas and oxygen gas, which can be collected over water: 2H2O(l) → 2H2(g) + O2(g) An electrolysis reaction at 735 mmHg pressure produced 25.00L of gas at 25°C; at which point, the vapor pressure of water is 23.76

153. ## chemistry

The density of an elemental gas is 2.14 kg/m3 at STP. What is its approximate molecular weight?

154. ## chemistry

Current can pass through salt solution but not through sugar solution ,why?

155. ## chemistry

Use kinetic molecular theory to explain why approximating ideal behavior (PV=nRT) is fairly accurate only at low pressures and high temperatures. Use several concepts of kinetic molecular theory, not just math, to explain.

156. ## Geometry

Name the Property of Equality that justifies this statement: x = x Reflexive Property Symmetric Property Transitive Property Substitution Property Use the truth table to test the validity of the following argument. If you play varsity sports, then you are

157. ## chemistry

What are diatomic elements?

158. ## Math

What it is an estimate of the solution of the equation 6n+3=2? Use a table.

159. ## Mathematics

The probability of selecting a banana from a bowl containing 5 bananas and 5 oranges

160. ## math

A caterpillar dump trunk is used at the oil sands near Fort McMurray Alberta. The diameter of one tire is 4m. Part A) find the circumference Part B) how many complete rotations does a wheel make on a 2 km long road?

161. ## Math

James have \$6 in dimes and quarters if he has 4 fewer quarters then dimes then how many of each coins does he have

162. ## math

A 2ft tall cardboard box standing next to an adult giraffe casts a 1 ft shadow. If the adult giraffe casts a shadow that is 7 ft long,then how tall is it. Answer 14 ft

163. ## MATHS

A)(2J)to the power of -1 B)(p/6)to the power of -3

164. ## PHYSICS

A skier is gliding along at 2.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10 ∘ incline. His speed at the bottom is 15 m/s . a).What is the length of the incline? b).How long does it take him to reach the bottom? (Please show work)

165. ## Math

The above function is given: f(x)= sqrt of (2x-6)/(x-8) - Sarah describes the domain as [3, ∞). - Describe why her domain is incorrect. - Provide the correct domain for the function. (I sort of understand this).

166. ## MATHS

Factorize :3x^2+3tx-xyt-t^2y

6e^3t=9e^2t

168. ## elementary set theory

Let Bi(2i,i-1) where I is the element of the integer,find (B2 U B4)

169. ## Chemistry

What would be the equation for NaOH + H2SO4 be? Would the porducts be H2O + NaHSo4 or H2O + Na2SO4? If it's the second one, which I think it is, where does that extra H go?

170. ## chemistry

Dr. Bob.. 630.24 kj was marked wrong...it said hint: make sure to carry out dimensional analysis........ ÄH value refers to the amounts of (moles) of substances and their matter in that specific equation. help....please....

171. ## Finite

One coin is fair and one is weighted so that Pr[H]=211. You randomly select one of the two coins, and flip it 5 times, noting the result of each flip. What is the expected number of heads?

172. ## Math

Let me know if I'm correct please For exercises 1 and 2 translate each phrase into an algebraic expression The difference of a number and sixteen n+16 n-16

173. ## Surd help plz

You ar given that root(59.3) = 7.70 and root(5.93) = 2.44. Find root(59300)???

174. ## biological psychlogy

what would be two reasons justifying the use of animals in physiological research. I need two examples that i could possibly argue

175. ## Chemistry

I have a lab question that is asking if the soda ash in our analysis was NaHCO3 instead of Na2CO3, how would the volume of acid added change from (a) the starting point to the phenolphthalein end point? (b) the phenolphthalein end point to the bromocresol

176. ## Science

Hi!I wished you can help me with my science fair project.I don't know what to do or which to pick.Please help me.Any suggestion?I'm a fifth grader by the way.I appreciate it a lot. Endless Thanks, Marie

177. ## american government

constitutional scholars have pointed out there is an inconsistency in justice marshall's opinion with respect with what the constitution specifically provided. whats the inconsistency?

178. ## Chemistry

A water treatment plant adds fluoride ion to the water to the extent of 1.5mg F-/L H2O. a)What is the molarity of fluoride ion in this water? b)If the fluoride ion in the water is supplied by calcium fluoride, what mass of calcium fluoride is present in

179. ## math

it is greater than 35 and less than 45 if you add the two digits the sum is 5 write the number word

180. ## math

the circumference of a circle is 30 find its area

181. ## Math

What is 0.68 written as a simplified fraction? My answer is 17/25. What makes the statement true? 7^-2= My answer is 14. What is 308,745,538 is scientific notation? My answer is 3.1 x 10^8. What is the solution to (3 x 10^2) x (5 x 10^5)written in

182. ## college algebra

Throwing A ball: A ball is thrown vertically from ground level with an initial speed of 108 ft/s. A. When will the ball hit the ground? B. When will the ball be 180 ft above the ground? h=-16t^2VT+H

183. ## AP CHEM

I have multiple... 1) If a metal ore contains 23.1% pure metal, how many pounds of pure metal can be obtained from 38 pounds of metal ore? Answer in units of pounds. 2) For the reaction 3 F2 + Cl2 → 2 ClF3 , what is the maximum amount of ClF3 (92.4482

184. ## Steve need your help probability

If 3% of electric bulb produced by a company are defective find the probability that in a sample of 100bulbs (a) 0 (b) 1 (c)2 d(3) bulbs will be defective???

185. ## marh

Greater then 43 less than 52 if u add the digits the sum is 8 write the number

186. ## social studies

Which of the following statements does not describe a function of the confederation government? A. defend the country B. regulate trade between states C. maintain relationships with other countries D. set up a postal service between states I just need help

187. ## Algebra

What is 0.68 written as a simplified fraction? My answer is 17/25. What makes the statement true? 7^-2= My answer is 14. What is 308,745,538 is scientific notation? My answer is 3.1 x 10^8. What is the solution to (3 x 10^2) x (5 x 10^5)written in

188. ## ghobnaton

Tone and couplet of poem the tuft of flowers by Robert frost

189. ## math

5^(-3) 4/7 √5 3/8 0.003 Order the numbers listed from least to greatest. (1 point)

190. ## Math

I don't know how to order 5/12 4/6 3/8 from least to greatest

191. ## English (Check)

The title of my project says it all.. Women are most effected by the issues. The women right movement have been going on ever since the 1800’s. The natural rights for women should mean them getting equal pay, getting the same job as a man and women not

192. ## Math

24,87.67+ ? into the nearest dollar

193. ## Algebra 2

Solve the following systems algebraic ally X+2y=17 X-y=2

194. ## Geometry 1 question

Use the truth table to test the validity of the following argument. If you play varsity sports, then you are dismissed from school an hour early. You are dismissed from school an hour early. Therefore, you are a varsity athlete. valid invalid Sorry about

195. ## Math

The five candidates for mayor in the town Smallville were members of these five parties: conservative, Democrat, Independent, Liberal, and Republican. Their names are Goshen, Hargreaves, Jensen, Liebowitz, and Nelson. From the information given, determine

196. ## Algebra 2

3x/7+2/7=2

a manager turns on the restaurants two neon signs at the same time. both signs blink as they are turned on. one sign blinks every 20 seconds and the other blinks every 15 seconds. in how many seconds will they blink together again?

198. ## math

Please check answers 1. Maria has a 25-page manuscript. The equation below shows the relationship between the total cost of editing 25 pages, T, and the cost per page, c, if she gets the 5% discount. 25c - 0.05(25c) = T Using the equation, what is the best

199. ## project management

Question (6) chapter 8 pages (286 - 287) here is what my instructor sent regarding the Q 6: - - - - - - - - - - - - - - - - - - - - - - - - - - - -- -- - -- - -- - - This exercise is similar to the resource scheduling issues you face in SIM Project for the

200. ## Calculus

A plane flying horizontally at an altitude of 2 mi and a speed of 420 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 5 mi away from the station.

201. ## english

You want to determine how many rainfall will fall in a certain time period. You collect rain as they fall from the sky onto a piece of bucket with an area of t square meters. If you want to determine the rainfall count as accurate as possible, you should

202. ## Math

1/4 x -1/2 -1/8*** 1/8 -1/4 -1/2

203. ## physics

While John is traveling along a straight interstate highway, he notices that the mile marker reads 256 km. John travels until he reaches the 144 km marker and then retraces his path to the 173 km marker. What is John’s resultant displacement from the 256

204. ## science

what is the main difference between lava and magma?

205. ## Umvuzo secondary school

Life orientation.three ways on how air pollution impact negatively to the health of people in your community or school?

206. ## Algebra

1. Is 2 a solution of the following equation? 2 = 10 – 4y Please explain this to me!

207. ## Algebra 2

Create multiple representations of each line described below A line with slope 4 and y intercept -6

208. ## geometry

Which statement best describes deductive reasoning?