1. Science help (just 4 questions)

1. Which of the following is an example of an environmental pressure? (1 point) the air pressure in the atmosphere a lake that is gradually running out of water a fight between two members of the same species breeding between two members of the same

2. Math help?

1. What are the equivalent fraction and decimal for 25%? 2. What is the equivalent decimal for 20%? 0.2 20 2.2 2 3. Estimate 78% of 20. 14 16 19 2 4. You go out to eat with your family, and you agree to leave the tip. What is a 15% tip on a \$60.00 bill?

3. math

Jeff uses 3 fifth size strips to model 3/5. He wants to use tenth size strips to model equivalent fraction. How many tenth size strips will he need? my answer is 6/10

4. science

in an island ecosystem a beetle feeds on a shrubby plants -- a songbird preys on the beetle and the hawk preys on the songbird. which has the smallest population?

5. chemistry college

Consider the titration of 30.0 mL sample of 0.050 M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of titrant (acid)have been added: a)0 mL, b)20.0mL, c)60.0mL, d)65mL Kb for NH3 is 1.8 x 10^-5

6. math

What are the answers to the middle school math with pizzazz book e page 29?

7. Science

When it was first classified by biologists, the elephant shrew was placed with the bicolored shrew in a cladogram. Since then, additional evidence has been found that caused scientists to remove the elephant shrew from the shrew group and place it in a new

8. Pre-Calculus

Consider the chemical reaction aC2H6 + bCO2 + cH2O → dC2H5OH, where a, b, c, and d are unknown positive integers.? The reaction must be balanced; that is, the number of atoms of each element must be the same before and after the reaction. For example,

9. ss. home work

Who was most likely to participate in a corn husking? a.Low Country residents b.Up Country residents c.house servants d.plantation owners i think it is b.

10. home inspection

Based on standards of practice guidelines, which of the following home components is normally required to be inspected? A. Awnings C. Storm window B. Storm door D. Balconies

11. Algebra 1

You are designing a wall mural that will be composed of squares of different sizes. One of the requirements of your design is that the side length of each square is itself a perfect square. 1. If you represent the side length of a square as x^2, write an

12. biology - dna

If a DNA double helix is gradually heated, which bonds in the molecule will break first (are the weakest)? A. bonds between the nitrogenous bases B. bonds between the bases and the sugars C. bonds between the sugar and phosphate within a nucleotide D.

13. math

Henry wishes to accumulate \$4,500 in 2 years for a long vacation. Find the sinking fund payment he would need to make each month, at 6% compounded monthly

14. algebra 1

you are preheating an oven to 350 degrees Fahrenheit before you bake muffins. several minutes later, the oven thermometer reads 346 degrees Fahrenheit. the measured temperature has an absolute deviation of at most 2 degrees Fahrenheit. write and solve an

15. Algebra 1

Check answer Glass Vase You are taking a glass-blowing class and have created a vase in the shape of a sphere. The vase will have a hole in the top so you can put ﬂowers in it and it will sit on a stand. The radius of your vase is 21/2 inches. Use the

16. math

Earl Watkins is ready to retire and has saved up \$250,000 for that purpose. He places all of this money into an account which will pay him annual payments for 20 years. How large will these annual payments be if the account earns 17% compounded annually?

17. Writing Skills

1) Frequently their renovation need to be completely redone. 1 need 2 needed 3 were needing 4 will have been needing 5 needs 2)If we were teenagers at the time these licenses signified our passage to adulthood. 1 time these licenses 2 time, these licenses

18. math

Tim deposits \$10 every month into a retirement account which averages 18% interest compounded monthly. How much will be in this account after 45 years?

19. Geometry/Trigonometry

Circles with centers (2,1) and (8,9) have radii 1 and 9, respectively. The equation of a common external tangent to the circles can be written in the form y=mx+b with m < 0. What is b? I drew the diagram and the tangents but to no avail. I cannot seem to

20. physics

A satellite of mass 225 kg is launched from a site on Earth's equator into an orbit at 200 km above the surface of Earth. (The mass of the Earth is 5.98 1024 kg, and the radius of the Earth is 6.38 103 km.) (a) Assuming a circular orbit, what is the

Andy needs to pay off a loan of \$18,000 in 5 years. Find the amortization payment he would need to make each bi-monthly pay period (twice a month) at 6% compounded bi-monthly, in order to pay off the loan.

22. Pure maths,life sciences and geography

Which are the careers that match with these subjects?

23. AP Statistics

A standard deck of cards consisting of 52 cards, 13 in each of 4 different suits, is shuffled, and 4 cards are drawn without replacement. What is the probability that all four cards are of a different suit?

24. Science Question?

When it was first classified by biologists, the elephant shrew was placed with the bicolored shrew in a cladogram. Since then, additional evidence has been found that caused scientists to remove the elephant shrew from the shrew group and place it in a new

25. english 3

One of the key questions historical criticism attempts to answer is: Who made the most important scientific discoveries of the time? Answer

How would you prepare 100.0 mL of 0.07500 M AgNO3 solution starting with pure solute? 2. An experiment calls for you to use 250 mL of 1.0 M HNO3 solution. All you have to available is a bottle of 6.0 M HNO3. How would you prepare the desired solution?

27. physics

An unknown material has a normal melting/freezing point of -20.4 °C, and the liquid phase has a specific heat capacity of 179 J/(kg C°). One-tenth of a kilogram of the solid at -20.4 °C is put into a 0.130-kg aluminum calorimeter cup that contains 0.198

28. Sic / 241

Can u please tell me if i figured this right? Part B: Calculating Calories Complete the equations below by using the information you obtained in Part A tables. Use figure 5.19 of the Visualizing Nutrition textbook as a guidance. Number of calories from

29. Physics GR12

A bungee jumper of mass 75kg is stadnding on a platform 53m above a river. The length of the unstretched bungee cord is 11m. The spring costant is 65.6N/m. Calculate the jumper's speed at 19m below the platform on his first fall. [Also, please state which

30. MICROECONOMICS

How have insights from the field of psychology influenced the thinking of economists in recent years?

31. chemistry

SHOW WORK How many moles of helium occupy 26.4 L at a pressure of 103.0 kPa, and 10 degrees Celsius? A.) 0.03 mole B.) 0.86 mole C.) 1.16 mole D.) 32.72 mole

32. physics

from a disk of radius R,a concentric circular portion of radius r is cut out so as to leave an annular disc of mass M . the moment of inertia of this annular disc about the axis perpendicular to its plane and passing through its centre of gravity is

33. Science

When it was first classified by biologists, the elephant shrew was placed with the bicolored shrew in a cladogram. Since then, additional evidence has been found that caused scientists to remove the elephant shrew from the shrew group and place it in a new

34. Math (PreCalculus)

An earthquake was recorded which was 1584893 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake on the Richter scale? Intensity on the Richter scale is log(I/Io). Correct Answer is 6.268. But how to get

35. Physics

A400 N child is swing that is attached tow ropes 2m long , find the gravitational potential energy of the child-earth system relative to the red line level when ropes make an angle with the vertical .

36. Physics

This speed is the maximum possible speed attained by the roller coaster, or the “theoretical speed”. Roller coasters are carefully designed to minimize frictional forces so that they approach these theoretical speeds. The efficiency of a roller coaster

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37. physics

A spring-like trampoline dips down 0.08 m when a particular person stands on it. If this person jumps up to a height of 0.26 m above the top of the trampoline, how far with the trampoline compress when the person lands?

38. Chemistry

Determine the molar mass of a compound and its molecular formula if a solution of 1.00 g of the unknown is dissolved in 50 grams of cyclohexane. Cyclohexane freezes at 6.02 oC. The normal freezing point of cyclohexane is 6.50 oC and its kf value is 20.2

39. math

How many 1/4 pound burgers can be made from 2 1/2 pounds of beef?

40. English Class

What is the direct object in these sentence? Can you check them please 1. This article gives interesting facts about libraries. Is it libraries? 2. In the Untied States, we now have thousands of libraries. Is it Untied States? 3. Fire destroyed all of

41. Math

An earthquake was recorded which was 1584893 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake on the Richter scale? Intensity on the Richter scale is log(I/Io).

42. calculus

let f:[0,1] - [0,1] be continuous function .show that there exist a in [0,1] such that f(a)=a

43. chemistry

Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas

44. SS

What are some European countries that did not allow religious freedom in the early 1900s?

45. Math

2x-5y=3 and -4x+10=-6 is there a solution. Use any method to solve if possible

46. PHYSICS

How will you prepare a laboratory procedure to verify the validity of the hypothesis? Give an example.

47. math

How tall is a stack of 16 nickels

48. introduction to health care

the view that the ppatient is an independent actor is known as a.social justice b.autonomy c.the subjective standard d.the objective standard my answer is d

49. Chemistry

What is the osmotic pressure of a 50% sucrose solution at a temperature of 37 degrees celcius with a molar mass of sucrose of 342.30 grams

50. brief calc

p = 8 − 2q1/3; p = 6 same as before calculate surplus

51. Calculus I don't understand

Find the volume of the solid obtained by rotating the region bounded by the given curves about the specified axis. y = 10 x and y = 5 x^2 about y =0 Find the volume of the solid obtained by rotating the region bounded by y=8 x^2, x = 1, and y = 0 , about

52. Chemistry

SHOW WORK A cylinder contains 36.5g of argon gas at a pressure of 8.20atm. The valve is opened and gas is allowed to escape until the pressure is reduced to 4.75atm at constant temperature. How many grams of argon escaped?

53. Physics

This speed is the maximum possible speed attained by the roller coaster, or the “theoretical speed”. Roller coasters are carefully designed to minimize frictional forces so that they approach these theoretical speeds. The efficiency of a roller coaster

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54. Math

Sharon has 64 ounces of juicers.shei is going to use juice to fill as many 6 ounce glasses as possible .she will drink the leftover juice. How much juice will Sharon drink

55. algebra 1

an essay contest requires that essay entries consist of 500 words with an absolute deviation of at most 30 words. what are the possible numbers of words that the essay can have?

56. Chemistry

What is the osmotic pressure in atmospheres of a 15% sucrose solution at a temperature of 25 degrees celcius

57. physics

When exposed to sunlight, a hole in a sheet of copper expands in diameter by 0.154% compared to its diameter at 74∘F. Part A What is the Celsius temperature of the copper sheet in the sun?

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58. Math

1. Lucita works at a fitness center and earns \$5.50. per hour. She worked 3 hours on Friday and x hours on Saturday. Write an expression to represent her total wages earned. 5.50(3)+5.50x 2. You and your friend spend a total of \$15 on lunch. Your friend's

59. finance

your finance text book sold 47,500 copies in the 1st year the publishing company expects the sales to grow at a rate of 23.0 percent for the next three years and by 12.0 percent in the fourth year calculate the total number of copies that the publisher

60. math

three times as many children as adults attended a concert on saturday. an adult ticket cost\$7 and a child ticket cost\$3 the theatre collected a total of \$6,000. how many people bought tickets?

61. PHYSICS

Differentiate plants from animals based on the following: Structures. locomotion, irritability, metabolic process, waste products,growth and development, outer covering, food making process.

Trigonometry Questions 1.) Find the exaqct value of tan(11π/12) 2.) A linear trig equation involving cosx has a solution of π/6. Name three other possible solutions 3) Solve 10cosx=-7 where 0≤x≤2π

63. Health (Ms. Sue)

Describe three ways that teens can take on more responsibility at home. A: Teenagers can take on more responsibility at home by taking more responsibility in relationships at home by showing concern for how people are feeling by asking how they are doing,

64. Chemistry

SHOW WORK A cylinder contains 98g of air at 295K. The pressure in the cylinder is 174psi. If 32g of air are allowed to escape and the cylinder is heated to 335K, what is the new pressure?

65. Physics I Newton's 2nd Law

I need help! I cannot seem to figure out what I will need to do for my final tomorrow. I will be given a mass of a glider and an acceleration. Another mass (my unknown) will be tied to a string to the glider and will graphically give me my acceleration.

66. math not sure which formula to use

Let’s suppose that we wish for an annuity to be set up so that we can take out \$6000 every quarter for 15 years and this annuity will get 6% interest compounded quarterly...how much must we invest today for this to happen?

67. Chemistry

If you have 10.00 mL of 0.5875 M H3PO4, how many mL of 0.2625 M NaOH are needed to reach the point of complete neutralization?

68. physics

The circuit shown below has a 100 Ohm resistor and 50 Volt-sec/amp (a unit of inductance called the Henry) inductor connected to a 12V battery. It is a freshman physics tradition that inductors are very poorly The switch is closed at t = 0 seconds. What is

69. Concept Maps

Does a concept map have to be circular? Can I make it look like a list from left to right?

70. PHYSICS

Identify/name at least 1 biological science problem and prepare on how procedure on how to solve such problem then recommend solutions.

71. Calculus volume stuff

Find the volume of the solid obtained by rotating the region bounded y = 16 x and y = 2 x^2 about y =0 Find the volume of the solid obtained by rotating the region bounded about the x-axis by y=4x^2, x =1, and y = 0 Find the volume of the solid generated

72. Geometry

How to solve for perpendicular bisectors of right triangle. RST meet at point D. Find DR

73. math

a park has 4 hiking trails. Trails A and B go from the lodge to the dock. Trail A is 1/2 mile long, and Trail B is 2/3 mile long. Trails C and D go from the dock to the park entrance. Trail C is 1/4 mile long and trail D is 1/3 mile long. Draw a picture of

74. Chemistry

SHOW WORK A 44g sample of CO2 has a volume of 22.4 L at STP. The sample is heated to 71 degrees Celsius and compressed to a volume of 18.0 L. What is the resulting pressure?

75. math

A cookie recipe calls for 2 1/4 cups of flour. If Gustavo wants to make 1 1/2 times the recipe, how much flour does he need? 2 1/4 + 1 1/2 9/4 + 3/2 * 2 9/4 + 6/4 = 15/4 = 3 3/4 Is correct?

76. English

What are the adjectives in this sentence? Many families headed for a favorite beach last week during the hot weather. Many, a, favorite, last, the, hot

77. physics

A thin, light wire 75.8cm long having a circular cross section 0.560mm in diameter has a 25.5kg weight attached to it, causing it to stretch by 1.12mm . what is the stress?

78. engineering

A saturated soil sample under CU test was subjected to a confining pressure of 200 kPa with back pressure (pore pressure) of 50 kPa. What would be the value of pore pressure if the confining pressure was raised to 400 kPa without drainage? If the pore

79. physics

What part of an object follows a smooth path when the object is made to spin through the air or across a flat smooth surface?

80. Math

3. Kay and SImon bought mugs at the gift shop. Simon bought 6 more mugs than Kay. Together they bought 32 mugs. Write an expression for each of them. Kay: x Simon: x + 6 Use an equation to find the number of mugs Kay bought and the number of mugs Simon

81. Chemistry

Consider the following chemical reaction 2HCl+Ca(OH) CaCl+2H2O you have a mixed solution with 20.00mL of 0.100M Ca(OH)2 solution What is the molarity of the HCl,Ca(OH)2 and CaCl2 after the reaction has stopped?

82. chemistry calculations

when 2.750 g of the oxide of lead is heated to a high temperature,it decomposes to produce 0.0640 g of oxygen gas and 2.686 g of some new lead oxide compound.How can you use this data to determine the formula of the new compound?

83. chemistry calculations

An ore sample with a mass of 670 kg contains 27.7% magnesium carbonate .If all of the magnesium carbonate in this ore sample is decomposed to form carbon dioxide ,describe how to determine what mass of carbon dioxide is evolved during the process.

84. Math check

write the decimal as a fraction or a mixed number in simplest form 2.67 2.67/1× 100/100 = 267/100 267/100 = 2 67/100?

85. PHYSICS

How could you repair an electric fan that is not working properly? Apply scientific method.

86. PHYSICS

Why era traits/scientific characteristic important in the field of Science?

87. BIOLOGY

Describe a series of small habitats that exist within 10 or 20 kilometers of your house and which might be subject to MacArthur and Wilson’s theory of island biogeography

88. statistics

I have just a couple questions I have trouble understanding... can someone please help me? The data below indicate the rankings of a set of employees according to class theory and on-the-job practice evaluations: Theory 1 7 2 10 4 8 5 3 6 9 Practice 2 8 1

89. Finance

Assume that you are financial advisor to a business. Describe the advice that you would give to the client for raising business capital using both debt and equity options in today’s economy

90. Geology

Hi there I'm having trouble with this study guide. Could someone please help me? You’ve returned from a recent geologic expedition and discovered that the security at the airport has dumped out all of your carefully sorted rock samples into a heap. You

91. Chemistry

SHOW WORK A cylinder containing 48g of nitrogen gas at room temperature is placed on a scale. The valve is opened and 12g of gas are allowed to escape. Assuming that the temperature of the cylinder remains constant, how does the pressure change?

92. Math

A department store sold 63 shirts one day. All short-sleeved shirts cost \$15.00 each and all long-sleeved shirts cost \$22.00 each. Total receipts for the day were \$1,134.00 . How many of each kind of shirt were sold?

93. math

a park has 4 hiking trails. Trails A and B go from the lodge to the dock. Trail A is 1/2 mile long, and Trail B is 2/3 mile long. Trails C and D go from the dock to the park entrance. Trail C is 1/4 mile long and trail D is 1/3 mile long. Draw a picture of

94. Physics

At the beginning of a roller coaster ride, the car is lifted to the top of a large hill and released. The speed of the car at the top of the hill is small, so we will assume it to be zero. The car rolls freely down this hill and reaches its maximum speed

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95. math

the formula for finding the surface area of a cube is A=6s with 2 at the corner where s is to the lengh of one side of the cube. what is the volume of the cube with side lengh of one half inches?

96. Chemistry

What is the osmotic pressure in atmospheres of a 50% sucrose solution at a temperature of 37 degrees celcius with molar mass of 342.30grams of sucrose

97. Math

What is the slope and y intercept of the parent linear function? Is it just x and y?

98. physics

Calculate the change in internal energy of 2kg of water at 90 degree Celsius when it is changed to 3.30m3 of steam at 100oC . The whole process occurs at atmospheric pressure. The latent heat of vaporization of water is 2.26×106J/kg

99. Chemistry

What is the osmotic pressure in atmospheres of a 15%(m/v) sucrose solution at a temperature of 25 degrees celcius

100. Chemistry

What is the molar concentration of the lead nitrate,potassium iodine,lead iodine,and the potassium nitrate after you mix 10.00mL of 0.200M Pb(NO3) and 30.00mL of 0.100M KI together balance the equation KI+Pb(NO3)2 PbI2+KNO3

101. algebra 1

This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

102. Physics

At the beginning of a roller coaster ride, the car is lifted to the top of a large hill and released. The speed of the car at the top of the hill is small, so we will assume it to be zero. The car rolls freely down this hill and reaches its maximum speed

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103. Chemistry

SHOW WORK A cylinder contains 22g of air. If 77g of air are pumped into the cylinder at constant temperature, how does the pressure in the cylinder change?

104. American Government

Miranda v. Arizona (1966) A. Example of voting rights B. Example of racial - discrimination C. Example of criminal defendant case D. Example of a states rights case I think the answer is D. Please confirm

105. Biology

Can someone provide an example of positive and negative control in a very easy and simple example?

106. Calculus

Let R be the region bounded by the curve x=9y-y^2 and the y- axis. Find the volume of the solid resulting from revolving R about the line y= -6. I believe the integral limits are from y=0 to y-9 i set up h(x) = 9y-y^2 r(x) = y+6 I am not sure if this is

Bob spent \$7.25 on appetizers and \$3.50 on a drink. His main meal cost him \$23. If tax is 9% and he wants to leave the maximum amount of tip for the waitress (because he thought she was cute), how much will Bob spend in total on his meal?

108. Puzzle question

This image htt p : //4.bp.blogspot . C o m /-DhYuH_eLg5A/T2RqPwctfDI/AAAAAAAAATY/Dv8fjTNczFA/s640/rosette_lula_1700 . jpg Novel + 2013 ??

109. physics

Suppose a driver's car needs to travel 46.4 miles in 1.000 hour at a constant speed. If the tires of the car have a rolling radius of 28.4 cm, what will be the period of rotation of each tire? Suppose a moon of a planet in a distant solar system has an

110. question

Using the Internet and the search skills you've learned in this study unit, answer the following question. You may wish to use search engines, meta-search engines, or virtual reference collections discussed in the study unit. 3. What waterside town in the

111. Math - Trig

1. From a point 15m from the base of a tree, the angle of elevation of the top of the tree is 46.48degrees. Approximate the height of the tree. 2. From a point 17.2m from the base of a building, the angle of elevation of the top of the building is

112. Biology

If you were given a plant with red tomatoes, how could you figure out what its genotype is? Explain

113. Chemistry

What is the molal concentration,m,of tin in a solution of 5.000grams of tin dissolved 95.000grams of copper

114. magnets and Physics

A very large loop of metal wire with radius 1 meter is driven with a linearly increasing current at a rate of 200 amps/second. A very small metal wire loop with radius 5 centimeter is positioned a small distance away with its center on the same axis (the

115. math

Two common names for streets are First Street and Main Street, with 12485 streets bearing one of these names. There are 2105 more streets named First Street than Main Street. How many streets bear each name?

116. Math

Find the angel in degrees required to shoot a cannon a distance of 200 yards. It's speed is 400 mps.

118. Math

Ricardo spends \$3.50 for lunch each day. Write and solve an equation to find how long it takes him to spend \$21.00 3.50x=21.00 3.50(6)=21.00 6. A spiral toy that can bounce down a flight of stairs is made from 80 feet of wire. Write and solve an equation

119. Chemistry

What is the ( m/m) % concentration of a tin in a solution of 5.000 grams of tin dissolved in 95.000 grams of copper

120. b

The ratio number of beads in Box A to the number of beads in the Box B is 3:5. The ratio of the number of beads in Box A to the number of beads in Box B bacame 1:3 when 10 beads were transferred from Box a to Box. B. How many beads were there in Box A at

121. English

What does quote mean? Things can happen in some cities and the tale of them will be interesting the same story laid in another city would be ridiculous."-frank Norris

122. Amercian History

In the first major pioneering movement, settlers made their way to Oregon and California by way of the _______ Trail

Why does therapist artists have to obtain clients records? ?????

The diagram shows tangent circles and lines. if AB=15 CM find AC, AD and AE . Help me reiny and other tutors please

125. physics

A 2.1 kg pendulum bob hangs from a 2 meter string. It is pulled to the side, position A, so that the bob is 125 cm (h on the sketch) above the lowest position, position C. The bob is released and begins to swing. How fast is it moving at that point?

126. Math check

write the decimal as a fraction or a mixed number in simplest form 5.705 5.705/1× 1000/1000 5 705/1000

127. To Steve

This image htt p : //4.bp.blogspot . C o m /-DhYuH_eLg5A/T2RqPwctfDI/AAAAAAAAATY/Dv8fjTNczFA/s640/rosette_lula_1700 . jpg Novel + 2013 ?? Puzzle question - Steve, Wednesday, December 4, 2013 at 6:24pm nine What's the meaning of nine ?

128. Algebra

1. a) write y=4x+8 in factored form 2. a) write y=-2x-6 in factored form 3. a) write y=1/3x+3 in factored form These are the answers I got: 1. y=4(x+2) 2. y= -2(x+3) 3. y=1/3(x+9) If I got any of these wrong, tell me what I'd did wrong.

129. Math

Find the equation of the curve that joins the following points. Hint: Use common differences. a. The zeros of the function are 3,-1,-5. The y-intercept is 15. Find the function. b. (1,1), (0,1), (2,-5), (-1,-5)

130. Geometry

Find the area of the triangles in square centimeters: a. 3.5, 4.8, 6.1 b. 10.2, 4.4, 7.1

131. French

Find the verb in the sentence. Elles sont timides francaises.

132. chemistry

a 5.82 kg piece of copper metal is heated from 21.5c to 328.3. calculate the head absorbed. Assuming it doesn't undergo a phase change. Cu specific heat 0.385 j/g*c

133. Education

After making a child abuse report, how are teachers protected by law? I've been looking at the child abuse sourcebook for Florida, but I can't find anything that explains how teachers are protected by law, please help.

134. PHYSICS

Why is a control set-up being done in conducting an experiment? Give example.

135. PHYSICS

Name and discuss the levels of organization in a multicellular organism starting from the basic unit or structure of life.

136. chemistry

a 5.82 kg piece of copper metal is heated from 21.5c to 328.3. calculate the head absorbed. Assuming it doesn't undergo a phase change. Cu specific heat 0.385 j/g*c

137. PHYSICS

Discuss the substances needed to carry out the food making process(photosynthesis) by plants and the products of such process.

138. PHYSICS

How is the evolution of animal like the long necked giraffe explained by Charles Darwin?

139. Algebra

Hello, Thank you for all of your help. Can you help me to figure out what the relation is for x=1-y^2? If I will be picking y values for a graph to get my x values then shouldn't it be 1-y^2? Thank you.

140. econ

french horns and trumpets are substitutes in production. if the price of trumpets rises how will this affect equilibrium in the market for french horns?

141. CALCULUS MAJOR HELP!!!!!!

Find the volume of the solid obtained by rotating the region bounded y = 16 x and y = 2 x^2 about y =0 Find the volume of the solid obtained by rotating the region bounded about the x-axis by y=4x^2, x =1, and y = 0 Find the volume of the solid generated

142. Geometry

A softball player asked her father to make her a home plate for a softball game. According to her encyclopedia, an official plate is made from a square by making two 12-inch diagonal cuts upward from both bottom corners. What is the length of the side of

143. Social studies

What tourist attractions can you find in or near Orlando?

145. Science

Where does beach matierial come from

146. Puzzle question

Martin Freeman, Benedict CUmberbatch, Harry Sinclair, Thomas Robbins,Andy serkis, Elijah Wood, Sean Astin There is a special case who shares the common trait with above and yet unique - name dat character ???

147. Chemistry (DrBob222)

Is the relationship between delta G and Temperature inverse or direct?

148. math

Which equation describes the line that contains the points (-5, 2) and (3, 7)?

149. Stats

The probability of a child getting coal in their stocking is 0.2. If Santa visits 3 kids on Christmas day a) what is the probability of 2 children getting coal? b) 1 or fewer children receiving coal? Please help me - my brain is fried!

150. Math

Henry is building a front door. The height of the door is one foot more than twice its width. If the door is seven feet high, what is its width? Am I suppose to use proportions

151. Computer Science

Given an undirected graph G = (V,E), does there exist a set D ⊆ V of size k such that every v ∈ V is either in D or adjacent to at least one member of D. Show that DS∈NPC. You may only assume that VC is known to be NP-Complete.

152. social studies

what is the definition of a dynasty

153. Math

F(x)= -2x^2-4x+5

154. Chemistry

What is the % (m/v) concentration of the calcium chloride 1000.00mL

155. MATH

WHAT IS PRECALC

156. Algebra

Hello again, I am now working on trying to find the relation of x = 1 - y^2, along with the domain and range. Then written in interval notation. I think I am ok with figuring out the domain and range on a graph but my problem is how to solve to get these x

157. Accounting

Create an adjusted trial balance & journal entries Bank charges of \$932.70 were not recorded in the books for 2014. These were credit card fees charged by the bank for Edwards, INC accepting credit cards from their customers. The charges were recorded

158. soil mechanics

The following results were obtained from a CU on two samples: Test no. Confining stress (kPa) Deviatoric stress (kPa) Pore pressure (kPa) 1 100 400 -20 2 300 760 60 a) Determine c and ƒÖ for total stress and effective stress condition. b) What is the

Trigonometry Questions 1. Solve the equation sin2x+1=-2sinx for 0≤x≤2π 2. Solve the equation 7sin2x-4sin2x/cosx=-1 where 0≤x≤2π 3. Determine the exact value of cos2(theta) when tan(theta)=3/4 and π

160. English

The Eleveven cities tour is the longest speed skating race. --------------------- What does 'lonngest' mean? Does it mean the longest length or the longest time?

161. CHEMISTRY

CALCULATE THE MOLARITY OF 50.0g OF NaCL IN 7820mL OF SOLUTION

162. Chemistry

What is the % ( m/ v) concentration of the calcium chloride solution 1000.00 grams which was dissolved in water to make 1000.00 mL of the solution

163. Chemistry

What is the osmotic pressure in atmospheres of 40.00% ( m/v) NaCl solution at a temperature of 0.0 degrees celcius

164. Immigrate vs. Emigrate?

Are the following sentences correct? "How many emigrated to the United States?" "What was a reason for immigration?"

165. physics

Three conducting loops are situated side-by-side in the plane of the page. A clockwise current flows in the center loop B, and its magnitude is decreasing in time. The induced currents in loops A and C: flow in opposite directions (A clockwise, B

166. coding

icd-9-cm injury code and e codes for motor vehicle accident due to loss of control, and crashing into a fence

167. math

If you were moving at a speed of 0.00025 kilometers per hour, what is your speed in meters per minute?

168. Puzzle question

All animals are equal, but some animals are more equal than others." His politics Name the game ??

169. Physics

a box initially moving with a speed of 5m/s along a rough , horizontal floor , it stopped it after 5 m the conffenict friction is 0.3 find the work done by friction .

170. calc

what is the derivative of y=ln (1-x^2)^1/2 so its hard for me to write all of my work on here but i got 1/2(1-x^2) as my answer and that is one of the choices but it is not the correct choice. the correct answer is -x/(1-x^2) how did they get this answer?

171. Math-Trig

A helicopter hovers 105 m above the end of an island. If the angle from the helicopter down to the other end of the esland is 13deg30', find the length of the island.

172. sinking fund math

in order to invest 236,281.61 at age 65 you need to start saving at the age of 25 How much money would we need to put away monthly into an ordinary annuity that earns 12% compounded monthly in order to get to our goal?

173. Math

the area of a yard is 420 ft. what is the probability that any leaf landing in the yard will land ina circular wading pool that has a diameter of 14 ft?

175. math

solve the equation for x using the fact that if a^u =a^v then u=v. 9^-x+15=27x. thanks

176. Puzzle question

The one who got away h t t p : //imgur . c o m /S4filEB

177. Geometry

How is the size of a TV measured? If we are comparing a 15-inch TV and a 30-inch TV, what is twice as big about the bigger TV?

178. Math

If the L.A. Dodgers win about 21 games a month, about how many games would they win after three months?

179. MATHS

in A.P the sum of the last five terms is 85 and the 4th is 9.what is the sum of the A.P?

180. Physical Science

(c) ____Cl2(g) + ____KBr(aq)h____Br2(l ) + ____KCl (aq) (d) ____CH4(g) + ____O2(g)h____CO2(g) + ____H2O(l )

181. math decimal

write each fraction or mixed number as a decimal - 56/60 = .93 90/200 = 0.45

182. english

could you please tell me the parts of speech for the given sentence : Council took a look round the court for a moment took-look-round-for-moment

183. PHYSICS

Why is there a need foe a scientist to know the limitations of Science?

184. MICROECONOMICS

Explain the relationship between labor earnings and the distribution of income

185. math ergent help someone please

Explain how to use end behaviour to find the equation of the horizontal asymptote of a rational function.

186. math mixed number

One inch equals 2.45 cm. Express the number of centimeters in an inch as a mixed number 2.54/1×100/100 2 54/100

187. PHYSICS

Differentiate the movement in plants and animals.

188. math

maddy wrote 2/3 of her 300 word essay on Monday and 1/4 on Tuesday. What fraction of her essay has she completed?

189. Help important

I need to figure Thenlongest running theatre show of london......& name masterpiece of author of dat show

190. math

a receipe for a loaf of banana bread calls for 2 3/5 pds of bananas. how many pds of bananas are needed to make 4 loaves of banana bfread

191. brief calc

q = 130 − 2p; p = 11 calculate consumers surplus at p im getting 9930, but it is wrong.

192. Math

I need help understanding inequalities - like a+2

193. College Algebra

1. 2log8^x=log8(4x+12) both log bases are 8. I have no clue what to do. 2. 1/2ln (x) -3 ln y - ln (z-2) so far for this second one i have ln sqrt(x)-ln y^3 - ln (z-2) dont know what to do next

194. Algebra

If f(x)=2x+1 and g(x)=3x-5, find f(g(2)).

195. math

Denny has 7/8 feet of lumber. To make one molding he needs 1/3 feet of lumber. How many moldings can he make?

196. MATH.

6. Combination of 9 pick 6 This seems easy but I am not sure how to set the problem up. Thanks!

197. math

The cost of refreshments (in dollars) is a function, h, of the number of people served, n. If h(n)=100/9n, find the number of dollars it would cost for refreshments for 27 people.

198. econ

a new sports store was selling 50 soccer balls for \$20 each. recently the store changed the price to \$30 each and sold only 30 soccer balls per day.what is the approximate price elasticity of demand for soccer balls?

199. Western Civ.

How did Napoleon cause WWI?

200. English

1. The race takes a long time. ---------------- What is the meaing of 'takes' in the sentence?

201. magnetism

Three conducting loops are situated side-by-side in the plane of the page. A clockwise current flows in the center loop B, and its magnitude is decreasing in time. The induced currents in loops A and C: A) flow in opposite directions,A clockwise, B

202. earth

A satellite's escape velocity is 6.mi./sec, the radius of the earth is 3960 mi, and the earth's gravitational constant (g) is 32.2 ft./sec^2. How far is the satellite from the surface of the earth?