# Questions Asked onNovember 17, 2011

1. ## cheistry

Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.

2. ## physics

starting from reast a boat increases its speed to 4.12 m/s with constant acceleration. (a) what is the boat's average speed? (b) If it take the boat 4.77s to reach this speed, how for has it traveled?

3. ## Chemistry

Calculate the standard enthalpy change for the reaction 2C8H18(l)+17O2(g)> 16CO(g) + 18H2O(l) Given 2C8H18(l)+25O2(g)>16CO2(g)+18H2O(l) deltaH=-11020 kj/mol 2CO(g)+ O2(g)>2CO2(g) Delta H=-566.0 kj/mol The > is supposed to be an arrow :)

4. ## physics

A child slides down a hill on a toboggan with an acceleration if 1.5 m/s2^2. If she starts at rest, how far has she traveled in (a) 1.0s,(b) 2.0s, and (c) 3.0s?

5. ## Chemistry

A 30.00mL sample of 0.150M KOH is titrated with 0.125M HClO4 solution. Calculate the pH after the following volumes of acid have been added: 30.0 mL, 35.0 mL, 36.0 mL, 37.0 mL, 40.0 mL

6. ## Physics

A parachutist descending at a speed of 10.0 m/s loses a shoe at an altitude of 40.0 m. (Assume the positive direction is upward.) when does the shoe reach the ground??

7. ## chemistry

What is the solubility of silver carbonate in 0.1 M Na2CO3

8. ## Chemistry

A candy sample is completely combusted in a bomb calorimeter. The calorimeter contains 982 g of water, and the measured temperature increase is 2.62°C. What is the fuel value of the candy sample in nutritional Calories?

9. ## algebra

Which properties did Carmen use to solve the following problem? 17 + (45 + 23) 17 + (23 + 45) (17 + 23) + 45 40 + 45 85

10. ## physics

Air bags are designed to deploy in 10 ms. Estimate the acceleration of the front surface of the ba as it expands. Express your answer in terms of the acceleration of gravity g.

11. ## statistics

The National Association of Realtors estimates that 23% of all homes purchased in 2004 were considered investment properties. If a sample of 800 homes sold in 2004 is obtained what is the probability that at least 175 homes are going to be used as

12. ## Calculus

Evaluate the integral by interpreting it in terms of areas. In other words, draw a picture of the region the integral represents, and find the area using high school geometry. interval 0 to 11 |3x-15|dx

13. ## chemistry

2Na3PO4(aq)+3 Ba(NO3)2(aq)---->Ba3(PO4)2(s)+6NaNO3(aq) a solution containing 3.50g of Na3PO4 is mixed with a solution containing 6.40g of Ba(NO3)2 how many grams of product can be formed? and if the above reaction resulted in 3.659 g of white powder, what

Analyze the sentence to select the adverb clause, subordinating conjunction, and the word(s) modified in the appropriate boxes below... 1)When you obey your parents, you please the Lord. Adverb clause: When you obey your parents Subordinating conjunction:

15. ## statistics

1. A state’s department of education reports that 12% of the high school students in that state attend private schools. The state university wonders if the percentage is the same in their applicant pool. Admissions officers plan to check a random sample

16. ## calculus

a fence 8 ft tall stands on level ground and runs parallel to a tall building. if the fence is 1 ft from the building, find the length of the shortest ladder that will extend from the ground over the fence to the wall of the building. (hint #1: if L

17. ## calculus

An oil can is to be made in the form of a right circular cylinder to have a volume of 16 pie inches cubed. Find the dimensions of the can that requires the least amount of material

18. ## math

find the opposite or additive inverse of -38

19. ## Physics

The position of a mass oscillating on a spring is given by x=(4.7 cm)cos [2pi t/(0.52 s)]. What is the period of this motion? What is the first time the mass is at the position x=0?

20. ## physics

You are driving through town at 12.0 m/s when suddenly a ball rolls out in front of you. You apply the brakes and begin decelerating at 3.5 m/s^2.(a)How far do you travel before stopping?(b)When you have traveled only half the distance in part(a), is your

21. ## science

is cinnamon ionic or covalent

22. ## government

What are two alternatives for the high case load fo the supreme court?

23. ## chemistry

What is the solubility of silver carbonate (Ag2CO3) in pure water

24. ## Alg. II

Simplify. Identify any x-values for which the expression is undefined. 1. (4x-8)/(x^2-2x) 2. (8x-4)/(2x^2+9x-5)

25. ## Physics

A ball rolls on a circular track of radius 0.65 m with a constant angular speed of 1.2 rad/s in the counterclockwise direction. Part A If the angular position of the ball at t= 0 is theta= 0, find the x component of the ball's position at the time 2.6 s.

26. ## Chemistry

A buffer solution contains HC2H3O2 at a concentration of 0.225 M NaC2H3O at a concentration of 0.164 M. The value of Ka for acetic acid is 1.75 × 10-5. Calculate the pH of this solution using the Henderson-Hasselbalch equation. Could you please show

A class consist of half as many boys as girls, if there are 14 boys how many girls are there

28. ## Physics

In an electronics factory, small cabinets slide down a 30 degree incline a distance of 16 m along the incline to the next assembly stage. The cabinets have a mass of 10 kg each. Calculate the speed each cabinet would acquire if the incline were

29. ## Physics

The outside mirror on the passenger side of a car is convex and has a focal length of -7.2 cm. Relative to this mirror, a truck traveling in the rear has an object distance of 20 m. Find (a) the image distance and (b) the magnification of the mirror.

30. ## Physics

Your heart beats with a frequency of 1.35 Hz. How many beats occur in a minute? If the frequency of your heartbeat increases, will the number of beats in a minute increase, decrease, or stay the same? How many beats occur in a minute if the frequency

31. ## Physics

A hammer slides down a roof that makes a 40.0 degree angle with the horizontal. What are the magnitudes of the components of the hammer's velocity at the edge of the roof if it is moving at a speed of 4.25m/s?

32. ## Algerbra 1

Translate into an algerbraic expression One more than three times a number The translation is (Type expression using x as variable) Simplify 42xy/49x The answer is Type as integer of fraction Use a commutative law to fin an equivalent expression nm An

33. ## Chemistry

Purple light in the visible region of the electromagnetic spectrum has a shorter wavelength than does the green region of the spectrum. Which of the following can you conclude? Is it: a)a photon of purple light has a higher frequency than does a photon of

34. ## Physics

A .5 kg block is sliding along a tabletop with an initial velocity of .20 m/s. It slides to rest in a distance of .7m. Find the frictional force regarding it motion. The answer given is .0143 N but I do not understand how to get that.

35. ## maths

Two planes take off from the same airport at the same time. One plane travels on a bearing S 12degreeW at 400 miles per hour. The other plane travels on a bearing N 75degreeE at 300 miles per hour. How far are the planes from each other 3 hours after

36. ## physics

when you see a traffic light turn red you apply the brakes until you come to a stop. if your initial speed was 12 m/s, and you were heading heading due west, what was your average velocity during braking? Assume constant deceleration.

37. ## physics

A 3.28-kg bucket is attached to a disk-shaped pulley of radius 0.108 m and mass 0.727 kg. (a) If the bucket is allowed to fall, what is its linear acceleration? (b) What is the angular acceleration of the pulley? (c) How far does the bucket drop in 1.65 s?

38. ## Living environment

9.When lions prey on a herd of antelope, some of the antelope are eliminated. Which part of the theory of evolution can be used to describe this situation? (1) sexual reproduction of the fittest (2) isolation of the species (3) survival of the best adapted

39. ## physics

On october 9,1992, a 27 pound meteorite struck a car in peeskill,NY leaving a dent 22 cm deep on the trunk. If the meteorite struck the car with a speed of 550 m/s, what was the magnitude of its deceleration, assuming it to be content?

40. ## physics.pls help

An ice hut used for winter fishing is at rest on a level patch of snow. The mass of the hut is 80kg. A wind exerts a horizontal force of 205N on the hut, and causes it to accelerate. While in motion, the magnitude of the force of friction acting on the hut

41. ## Physics

In unit-vector notation, what is the torque about the origin on a particle located at coordinates (0, -4.90 m, 4.04 m) due to (a) force 1 with components F1x = 2.67 N and F1y = F1z = 0, and (b) force 2 with components F2x = 0, F2y = 1.23 N, F2z = 5.41 N?

42. ## math

How many different 3 digit numbers less than 500 can be made using the digits 3, 4, 5, and 6 if the digits can be used only once

43. ## calculus

the cost (in dollars) of producing x units of a certain commodity is C(x)=5090+13x+0.09x^2. Find the average rate of change with respect to x when the production level is changed from x=105 to x=107.

44. ## calculus

Two cars start moving from the same point. One travels south at 28mi/h and the other travels west at 50mi/h. At what rate is the distance between the cars increasing 4 hours later?

45. ## Chemistry

Fermentation of carbohydrates is a source of 1. ethanol 2. MTBE 3. methanol 4. ethers I am working on self test in the book, but the answer is not in the back of the book for this. Any help??

46. ## math

using problem 17-21 calculate the first 2 years depreciation assuming the units of production method. this machine is expceted to produce 120,000 units. in year 1 it produced 19,000 units and in year 2 38,000 units problem 17-21 Jim company bought a

47. ## Chemistry

What is the minimum volume of 6.5M HCl required to completely dissolve 24.0g of magnesium metal?

48. ## math

you need exactly A 1680 ft3 aquarium for you fish. at the pet store you see four chices of aquariums, but the volume is not listed. the length, width, and height are listed on the box. which of the following aquarioums would fit your needs? a)

49. ## calculus

A man starts walking north at 3ft/s from a point P. Five minutes later, a woman starts walking south at 6ft/s from a point 500ft due east of P. At what rate are the people moving apart 15min after the woman starts walking?

50. ## art

Compare Manet’s Olympia to Millais’s Ophelia. Discuss how each work represents the artist and his period

51. ## english

what is the adverb in the sentence They are always late for ballgames. is it always

52. ## Physics

A small fish is dropped by a pelican that is rising steadily at 0.65 m/s. (Assume the positive direction is upward.) 1. After 2.5 s, what is the velocity of the fish? 2. How far below the pelican is the fish after 2.5 s?

53. ## math

shawna reduced the size of a rectangle to a height of 2 in. what is the new width if it was originally 24 in wide and 12 in tall ? how do you solve it if the answer is 4?

54. ## chemistry

if 10mL of acetone is diluted with water to a total of 200mL, what is the percent by volume in the propane solution?

55. ## Living environment

7. The lost of flying by the beetle is most probably the result of (1) predators eating the beetles’ wings (2) beetles not using their wings (3) genetic changes in the beetles (4) lack of vegetation for the beetle to feed on IS THE Answer 3

56. ## chemistry

Write a net ionic equation for the reaction that occurs when aqueous solutions of sodium hydroxide and perchloric acid are combined.

57. ## Math- Pre calc

A 60 foot antenna stands on top of a building. From a point on the ground, the angle of elevation to the top of the antenna measures 48 degrees and 39 degrees to the top of the building. How tall is the building?

58. ## Math

A sneaker outlet has made the following wholesale purchases of new running shoes: 12 pairs at \$45, 18 pairs at \$40 and 20 pairs at \$50. An inventory taken last week indicates that 23 pairs are still in stock. Calculate the cost of this inventory by FIFO.

59. ## physics

A concave mirror has a focal length of 13 cm. The mirror forms an image located 40 cm in front of the mirror. What is the magnification of the mirror?

60. ## chemistry

in an experiment 5.00ml of 0.1440 mol L^1- aqueos KIO3 was reacted with an excess of aqueous iodide and the molecular iodine I2, Formed was titrated against 0.1000mol L^1- aqueous S2O3^2- the equation for the titration reaction is: I2(aq)+ 2

He responds whenever he is called. In this sentence the Adverb clause is: whenever he is called and the Subordinating conjunction is: whenever what is the word modified? how can i figure out which word it is?

62. ## English

Are there any metaphors in the poem Young by Anne Sexton? If so, what are the metaphors?

63. ## math

Marvin Company has a beginning inventory of 12 sets of paints at a cost of \$1.50 each. During the year, the store purchased 4 sets at \$1.60, 6 sets at \$2.50 and 10 sets at \$3.00. By the end of the year, 25 sets were sold. Calculated (a) the number of paint

64. ## CHEMISTRY

name this alkyne ch3-ch2-ch2-ch3(cßCH)-CH2-CH2-CH2-CH3 is a heptyne but i just cant figure out the name . Ive tried 1-heptyne but its not the right answer :S help?

65. ## Physics

When a 0.213-kg mass is attached to a vertical spring, it causes the spring to stretch a distance d. If the mass is now displaced slightly from equilibrium, it is found to make 150 oscillations in 52.0 s. Find the stretch distance, d.

66. ## math

Please show me how to solve: For what value of k are the graphs of 12y = -3x + 8 and 6y =kx - 5 parallel? For what value of k are they perpendicular?

67. ## Physics

A mass of 5kg decending vertically draws up a mass of 3kg by means of a light string passing over a pulley. At the end of 4s the string breaks. how much higher the 3kg mass would go?

68. ## Physics

A 15 kg model airplane flies horizontally at point A that is 20 m about point B. It has a speed of 19.993 m/s at point A. It then flies horizontally at point B. If the loss of potential energy is reflected as an increase in kinetic energy, what is the

69. ## international economic

2.) This question uses the general monetary model, in which L is no longer assumed constant and money demand is inversely related to the nominal interest rate. Consider the same scenario described in the beginning of the previous question. In addition, the

70. ## Physics

a gymnast tumbles forward 4.0m, does cartwheels to the left for 6.0m and climbs a vertical rope to a height of 3.0m. What is the magnitude of the gymnast's displacement?

71. ## Math

Lena Horn bought a Toyota Tundra for \$30,000 with an estimated life of 5 years. The residual value of the truck is \$5,000. Assume a straight line method of depreciation (a) what will be the book value of the truck at the end of year 4 (b) If the chevy

72. ## physics

A 29 kg chair initially at rest on a horizontal floor requires a 375 N horizontal force to set it in motion. Once the chair is in motion, a 345 N horizontal force keeps it moving at a constant velocity. The acceleration of gravity is 9.81 m/s2 . a) What is

73. ## Physics

A 0.55-kg air cart is attached to a spring and allowed to oscillate. If the displacement of the air cart from equilibrium is x=(10.0 cm)cos[(2.00 s ^-1)t + pi], find the maximum kinetic energy of the cart. Find the maximum force exerted on it by the

74. ## chemistry

The reasons why copper dissolves in AgNO3 solution but remain insoluble in Pb(No3)2 solution.help me.thank you

75. ## physics

Tom the cat is chasing Jerry the mouse across a table surface 1.8 m oﬀ the ﬂoor. Jerry steps out of the way at the last second, and Tom slides oﬀ the edge of the table at a speed of 7.6 m/s. Where will Tom strike the ﬂoor? The acceleration of

76. ## chemistry

Which of the following does NOT have an angular shape? 1. NH2 - 2. ClO2 - 3. HOCl 4. S3 -2 5. N3 -

77. ## calculus

the cost (in dollars) of producing x units of a certain commodity is C(x)=5579+13x+0.03x^2. Find the instantaneous rate of change with respect to x when x=103.

78. ## geometry

IVEN: trapezoid ABCD EF are the midpoints of segment AB and segment CD, PROVE: segment EF is parallel to segment BC is parallel to AD , segment EF= one-half (AD + BC)

79. ## spanish

Which word best fits this sentence. La clase de ciencias sociales es (facil) (aburrida) (dificil) (divertida). Hay mucha tarea todos los dias.

80. ## physics

What is the acceleration experienced by the tip of the 1.5 cm long sweep second hand on your wrist watch

81. ## Algebra 1

The crowd that heard the President speak was estimated to be 10,000 peoples. The actual crowd could be 750 people more or less than this. What are the possible values for the actual crowd size?

82. ## Physics

A drop of water on a countertop reflects light from a flower held 2.8 cm directly above it. The flower's diameter is 1.7 cm, and the diameter of the flower's image is 0.17 cm. What is the focal length of the water drop, assuming that it may be treated as a

83. ## Physics

A solid brass ball of mass 9.5 g will roll smoothly along a loop-the-loop track when released from rest along the straight section. The circular loop has radius R = 4.2 m, and the ball has radius r

84. ## Javascript

Input: A text string, using prompt. Output: Either "Valid name" or "Invalid name", depending on whether the input names fit the required format, which is Last name,first name, middle initial where neither of the names have more than 15 characters.

85. ## calculus

a farmer has a 2040 ft of fencing and wishes to fence off two separate fields. one of the fields is to be a rectangle with the length twise as long os the width. while the other field is to be square. determine the dimension of the fields if the farmer

86. ## English

Which of the following are characteristic of the growth of realism? An embracing of the ideals but not the methodology of later romanticism, a focus upon the lower classes, and a "slice of life" approach A reaction against romanticism, a reaction against

87. ## Physics

Two people with a combined mass of 135 kg hop into an old car with worn-out shock absorbers. This causes the springs to compress by 9.80 cm. When the car hits a bump in the road, it oscillates up and down with a period of 1.76 s. Find the total load

88. ## literary

What are a few allusions to Oedipus in literature, besides Froid? I can use references from either fiction or non-fiction. Please help I Haven't been able to find anything online

89. ## stoichiometry

How many grams of Nitric oxide are required to produce 145g of nitrogen in this reaction: Al2O3(s)+6NO(g)---->5N2(g)+6H2o(l)

90. ## Physics

A 26.0 kg block is connected to an empty 1.00 kg bucket by a cord running over a frictionless pulley (Fig. 4-57). The coefficient of static friction between the table and the block is 0.490 and the coefficient of kinetic friction between the table and the

91. ## Living environment

The process of natural selection is based on the assumption that (1) environmental changes will cause changes in body structures in individuals (2) most changes from generation to generation are the result of mutations (3)part of the population of

92. ## algebra

The distance d when a spring is stretched by a hanging object varies directly as the weight w of the object. If the distance is 58cm when the weight is 3kg, what is the distance when the weight is 8kg

93. ## chemistry

I wanted to check my True and False Chemistry HW. I am not 100% they are correct. 1.the number of neutrons in an atom is reffered to as its atomic number False 2.the periodic table is arranged by increasing atomic number True 3.atomic number is equal to

A data processing analyst for a research supplier finds that a preliminary computer run of survey results show that consumers love a client’s new product. The employee buys a large block of the client’s stock. Discuss the ethical ramifications of this

95. ## Physics

A vibrating structural beam in a spacecraft can cause problems if the frequency of vibration is fairly high. Even if the amplitude of vibration is only a fraction of a millimeter, the acceleration of the beam can be several times greater than the

96. ## Linear Programming

Riverside oil company in eastern Kentucky produces 3 different grades of gasoline. They are regular, premium, and supreme grades. Each barrel of regular grade sells for \$77 while premium grade sells for \$82 per barrel and supreme grade sells for \$89 per

97. ## Physics

A bunch of grapes is placed in a spring scale at a supermarket. The grapes oscillate up and down with a period of 0.41 s, and the spring in the scale has a force constant of 640 N/m. What is the mass of the grapes? What is the weight of the grapes?

98. ## physics

A college student is at a concert and really wants to hear the music, so she sits between two in-phase loudspeakers, which point toward each other and are 60.8 m apart. The speakers emit sound at a frequency of 428.75 Hz. At the midpoint between the

99. ## Personal Finance Management

Jenny has a part time job and her net take-home income is \$2000 per month. She needs to allocate her funds to reflect a balanced monthly budget. Jenny's main categories of expenses include rent, utilities, and groceries. How would Jenny best utilize her

100. ## Math

Explain how you can estimate to tell whether 433-147=286 is reasonable.

101. ## Critical Thinking

Identify the correct fallacy of relevance committed by the following arguments, explain how it is used in the example, and determine what is wrong with the reasoning. (ex. What should have been said or argued? 1) Convicted murder Johnny Palko has argued

102. ## physics

A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +24.0 rad/s. Then, the brakes are applied. In coming to rest, each wheel makes an angular displacement of +16.0 revolutions. (a) How much time does it take for the bike to

A ball is thrown vertically upward (assumed to be the positive direction) with a speed of 21.0 m/s from a height of 9.0 m. (a) How high does the ball rise from its original position? (b) How long does it take to reach its highest point? (c) How long does

104. ## Physics

A 5.00 m long rigid beam with a mass of 200.0 kg is supported at each end. A 55.0 kg student stands on the beam, 1.40 m from the left support and a 70 kg student stands 1.2 m from the right support. How much upward force does each support exert on the

105. ## Math

Find two consecutive whole numbers such that 3/4 of the first number is 5 more than the second number.

106. ## Physics

A mass attached to a spring oscillates with a period of 3.15 s. If the mass starts from rest at x= 4.10×10−2 m and time t= 0, where is it at time t= 6.37s? Is the mass moving in the positive or negative x direction at t= 6.37s?

107. ## physics

a gymnast tumbles forward 4.0m does cartwheels to the left for 6.0 m and climb a vertical rope to a height of 3.0m. What is the magnitude of the plane's displacement from the airport?

108. ## Physics

A 1.5 N force acts on a .20 kg cart so as to accelerate it along a frictionless track. If it is accelerated from rest, how fast is it going after .3m? The answer given is 2.12 m/s but I am not sure how to get to that.

109. ## marketing

Explain the importance of an organized new-product development process and illustrate how it might be used for (a) a new hair care product, (b) a new children’s toy, and (c) a new subscribers-only cable television channel.

110. ## programming

creat a logic for a program that continuously prompts the user for a numeric number of dollars until the user enters 0. pass each entered amount to a conversion method that displays breakdown of the passed amount into the fewest bills

111. ## chemistry

in an experiment 5.00ml of 0.1440 mol L^1- aqueos KIO3 was reacted with an excess of aqueous iodide and the molecular iodine I2, Formed was titrated against 0.1000mol L^1- aqueous S2O3^2- the equation for the titration reaction is: I2(aq)+ 2

112. ## physics

One gram of water changes from liquid to solid at a constant pressure of one atmosphere and a constant temperature of 0°C. In the process, the volume changes from 0.90 cm3 to 1.10 cm3. The work done by the water is .02J, but I'm not sure how to find the

113. ## chemistry

Acetic acid (CH3COOH) reacts with isopentyl alcohol (C5H12O) to yield the ester isopentyl acetate which has the odour of bananas. If the yield from the reaction is 45%, how many grams of isopentyl acetate are formed when 3.90 g of acetic acid and 6.28

114. ## algebra

will had 32.80 to spend on school supples . if he spends 3/4 how much will he have left ?

115. ## algebra

The present ages in years of four cousins are consecutive multiples of 3. Five years ago the sum of their ages was 46. What is their ages now?

116. ## calculus

You are given the four points in the plane A = (-3,7), B = (-1,-6), C = (4,6), and D = (6,-1). The graph of the function f(x) consists of the three line segments AB, BC and CD. Find the integral interval -3 to 6 f(x)dx by interpreting the integral in terms

117. ## algebra

while driving a car you realize that you only have one eighth gas remaining before you run out of gas you pull into a gas station and put is gallons of gas in your car's tank is now three fourths full how many gallons of gas does your car's tank hold show

118. ## chemistry

a given mass of hydrogen occupies 40.0L at 700 torr. what volume will it occupy at 930 torr

119. ## Chemistry

What is the molality of a solution prepared by dissolving 81.5 g of ethylene glycol, HOCH2CH2OH, in 1.36 L of water? Assume the density of water is 1.00 g/ml.

We have to write this essay for english. Here is the info. We are working on the intro for our essay B = Broad Statement I = Illustrate (Example) N = Narrow the Topic T = Thesis Statement Essay Topic * Explain how his/her (Rose Parks) characteristics were

121. ## geometry

Trapezoid PQRS was rotated 60° around a point. Which point could have been the center of this rotation?

122. ## physics

1) A fask has the following features; a plastic stopper glass walls with silver coating on both sides vacuume between walls plasic spacer Which features of the flask reduce energy transfer by: a) radiation b) conduction c) convection 2) Many vacuume flasks

123. ## psychology

"He is never going to change. He is set in his ways," the client complained. "let's think about it. Does this hurt you or him.?" The therapist is applying: a. behavioural therapy b. a cognitive treatment approach c. psychodynamic therapy d. contingency

124. ## math

The force F (in Newtons) required to move a box of mass m kg in motion by pulling on an attached rope is F(x) = f m g/(cos(x))+ f (sin(x)) where x is the angle between the rope and the horizontal, f is the coefficient of static friction and g = 9.8 m/s^2.

125. ## calculus

a trapezoid is a quadrilateral with (only) two sides (called bases) that are parallel. an isosceles trapezoid has two equal legs. the area of a trapezoid is A=(1/2)*h*(b1+b2) where b1 and b2 are the two parallel bases and h is the altitude. your problem: a

126. ## Physics

You have a 2.4 m high platform that is level on top. A spring launcher is located on the top so that it launches objects horizontally. You want to launch a 0.70 kg ball so that it hits at target on the ground 6.0 m away from the base. If the spring

127. ## math

grace has 16 in her pocket. she has 8 red ibesm 4 green ones, and 4 blue ones. what is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each color?

128. ## chemistry

are this 2 equations the same NIE? and if not how come? Write a net ionic equation for the reaction that occurs when aqueous solutions of ammonia and acetic acid are combined. Write a net ionic equation for the reaction that occurs when aqueous solutions

129. ## calculus

Determine an appropriate linear approximation of the function f(x)= the square root of x and use it to approximate the square root of 24.2. Write your answer in decimal form

130. ## english

plural and possessive nouns. the concerns of a large animal? the whole work sheet im haveing problems with.....i need HELP!!please!

131. ## physics

A 41.2 kg student runs down the sidewalk and jumps with a horizontal speed of 4.36 m/s onto a stationary skateboard. The student and skateboard move down the sidewalk with a speed of 4.12 m/s. a. Find the mass of the skateboard (in kg) b. How fast would

132. ## algerbra 1

-2/3.[-4/5]= -6-7= A hospital parking lot charges \$3.00 for the first hour or part thereof and \$1.50 for each additional hour or part thereof. a weekly pass cost \$33.00 and allows unlimited parking for 7 days. If each visit Johny makes to the hospital last

133. ## Finance

listing the different sources of short-term financing. Discuss the characteristics of each source and explain why a company might choose one over the other.

134. ## Chemistry

a saturated solution of barium chloride at 30c contains 150g water. how much aditional barium chloride can be dissloved by heating this solution to 50c?

135. ## calculus

a plane flying horizontally at an altitude of 2 mi and a speed of 460 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.

136. ## Science

Facts about the sun are? I have 1. the only star in our solar system 2. sun spots are cooler areas on sun's surface 3. from solar energy 4.Solar flares 5. only star you see during the day 6.made of gas 7.closest star to our earth

137. ## chemistry

What is the molality of a solution prepared by dissolving 75.2 g of ethylene glycol, HOCH2CH2OH, in 1.34 L of water? Assume the density of water is 1.00 g/ml.

138. ## Math

Lisa studies for 7 hours for a particular test and got a score of 71, how many hours would she have had to study to get a score of 91?

139. ## Physics

A cylinder shaped buoy is stationary out on a lake. The height of the buoy is 1 m and the diameter is 30 cm and it‘s mass is 50 kg. Now a whale swims under the buoy and hit it. The buoy raises up and begins to oscillate. a) Find the total force on the

140. ## Math

If h = 6 units, X = 9 units, Y = 13 units, and Z = 17 units, then what is the volume of the triangular prism shown above?

141. ## Physics

The cable supporting a 2123 kg elevator has a maximum strength of 25982 N. What maximum upward acceleration can it give the elevator without breaking? Can someone give me step by step on how to solve this?

142. ## statistics

3. Use the following SAT score data to answer the questions that follow. Gender Verbal Math M 600 690 M 610 550 F 490 800 F 680 610 M 520 540 F 680 660 M 650 700 M 600 560 F 550 560 M 490 390 F 530 530 M 560 560 F 630 590 F 510 520 M 710 740 F 550 560 M

What website is when you can ask any questions and other people can answer it something besides YA like free lik jiskha but for people to ask random questions and them answering.

144. ## Physics question

A 14 kg mass is dragged across a rough surface by a rope that makes an angle of 12° above the horizontal. If the tension in the rope is 349 N, determine the forward acceleration. Assume that µs = 0.64 and µk = 0.47. I just can't seem to do this at

145. ## math

what is the GCF of 300 and 225 using prime factorization

146. ## Chemistry

a saturated solution of barium chloride at 30c contains 150g water. how much aditional barium chloride can be dissloved by heating this solution to 50c?

147. ## Math

Explain how you can estimate to tell whether 433-147=286 is reasonable.

148. ## Math

Joe Ponzio, a financial advisor who bases his investigating strategies on the teachings of Warren Buffett, explains why inventory turnover rates matter to managers, owners, and investors on his August 7, 2009, blog post, He states: "The company doing five

149. ## phyics

A novice golfer on the green takes three strokes to sink the ball. The successive dis- placements are 5.9 m to the north, 10 m 45  north of east, and 5.9 m 26 west of south. Starting at the same initial point, an expert (lucky) golfer could make the hole

150. ## Calculus

The graphs of f(x) = x^3 and g(x) = 3X+5 have one intersection point. Determine the x-value for this intersection point using Newton's Method with an initial estimate of X1=2. You should use this method three times in order to obtain estimates X2, X3, and

151. ## english

Write each sentence, using the subject pronoun that best replaces the underlined word or words. The neighborhood grocer sells a lot of fresh fruit. underlined word The neighborhood grocer

152. ## Biology

Please help, anyone! There's 3 types of gene mutation: substitution, deletion, and insertion, right? So what are '2 kinds of gene mutation that causes the protein to be not formed'?? I mean, gene mutations may cause non functional proteins, but that's not

153. ## physics

The sound level in decibels is typically expressed as β = 10 log (I/I0), but since sound is a pressure wave, the sound level can be expressed in terms of a pressure difference. Intensity depends on the amplitude squared, so the expression is β = 20 log

154. ## earth

22. If a man weighs 720 N on Earth, what is his weight on the moon?

155. ## Physics......

A ball on a 6.5 m long string swings down and wraps around a post that is 4.0 m below the post the string is attached to. If the ball is released level with the post to which it is attached, what will be the velocity of the ball when it is at its highest

156. ## Social Studies

My most exalted Monarch - Your Majesty Queen Isabella, I am writing this letter most humbly for you to consider my request for three small ships and a crew so that I may sail west and find the shortest route to the East. I promised to chaim land for Spain

157. ## physics

Question Part Points Submissions Used A bus slows down uniformly from 75.0 km/h (21 m/s) to 0.0 km/h in 220 m. How long does it take to stop?

please give me some idea how should i start writing about this ,i want to write 2 paragraphs. Thanks for any help!!! Pretend that you writing to the editor of your local newspaper. Your purpose is to convince its readers that rather than solely relying on

159. ## science

what happens to washing soda crystals when mixed with sulphuric acid

160. ## beginning band

what are the instrumemt groups heard in this ensemble tabuh kenilu sawik

161. ## algebra

john had 35 Dollars before spending N dollars on clothes how much money remains

162. ## Economic

1. Use the following information to answer the questions below. Please note that output of good X is measured in 100’s on the x axis, i.e. if you find Q = 10 then output is 10 × 100 = 1, 000 units. You must have a diagram to support you answers. •

163. ## Economic

1. Use the following information to answer the questions below. Please note that output of good X is measured in 100’s on the x axis, i.e. if you find Q = 10 then output is 10 × 100 = 1, 000 units. You must have a diagram to support you answers. •

164. ## Chemistry

Why does only one of these ions (Co, Cu, or Ni) produce a positive flame test?

165. ## chemistry

A reaction occurs where the concentration of reactant A changes from 0.74 moles/liter to 0.63 moles/liter in 20 seconds. what is the average rate of reaction?

166. ## chemistry

Given the following reaction: TiCl4 + O2→ TiO2 + Cl2 If 51.44 g TiCl4 react with 82.32 g O2 complete a mass balance table for this reaction.

167. ## math

You are given a positive integer such that when the integer is divided by 1995, the remainder is 75. What will the remainder be when the same positive integer is divided by 57?

168. ## algebra

1. The speed of a passenger trin is 18mph faster than the speed of a freight train. The passenger train travels 260 miles in the same time it takes the feight train to travel 170 miles. Find the speed of each train.

169. ## algebra

Hat sizes are determined by measuring the circumference of one's head in either inches or centimeters. Use ratio and porportion to complete the following table. hat size Head circumference 7 1/4 (to nearest 1/5inch) 7 1/8 22 4/5 Head circumference (to

170. ## chemistry

In an industrial process, the following reaction is carried out in the presence of a catalyst: C2H51 + Cl2 → C2H51Cl12 Calculate the percentage yield if 405.58 grams of C2H51 are used in the reaction and 474.91 grams of C2H51Cl12 are produced.

171. ## English

He wondered __________ he should see about his abdominal pain. who or whom

172. ## Math

Can you show us how to find the discriminant of the quadratic x^2 + 2x -2 =0

173. ## math

A ship sails from a port,P, on a course of 060 degrees for 15km to a buoy ,Q. It then changes course in a direction 120 degrees from Q for 25 km to a rig R.

174. ## math

Patricia estimated that 439 - 186 would be close to 300. Do you agree? Explain and solve the problem.

175. ## math

a room mesures 11ftx12ftx9ft. what is the volume?

176. ## calculus

the displacement (in meter) of a particle moving in a straight line is given by the equation of motion s=5t^3+4t+2, where t is measured in seconds. Find the velocity of the particle at t=3.

177. ## Physics

I have posted the same questions over and over and received no help. Will someone please help me? A horizontal spring with a spring constant of 200.0 N/m is compressed 25.0 cm and used to launch a 3.00 kg block across a frictionless surface. After the

178. ## Physics

If a force of 20N stretches a spring 15 cm, by what amount will the spring stretch is if a force of 80 N is applied?

179. ## algerbra 1

6 18/-2= or is it undefined 7 -2+t=9 solution t= 8 Evaluate p/g for p=98 and g=7 p/g= 9 Tell which real number corresponds to the situation. During the game, a person wins 450 points. What is the corresponding numbe in this sentence? 10 Simplify

A horizontal spring with a spring constant of 200.0 N/m is compressed 25.0 cm and used to launch a 3.00 kg block across a frictionless surface. After the block travels some distance, the block goes up a 32 degree incline that has a coefficient of friction

181. ## psychology

Kevin hates his job,his girl friend dropped him, and he had a hedeache this morning from staying uo too late eating hamburgers and drinking beer by himself.He has decided to initiate a new attack today and take control of his life.He will find new

182. ## Physics

You have a 2.4 m high platform that is level on top. A spring launcher is located on the top so that it launches objects horizontally. You want to launch a 0.70 kg ball so that it hits at target on the ground 6.0 m away from the base. If the spring

183. ## physics

A .1kg mass is located on the line between a 5kg mass and a 10kg mass. It is 4m to the right of the 5kg mass and 6m go the left of the 10kg mass. What is the magnitude and direction of the net force on the .1kg mass?

184. ## ELA

I have to do this project and I have to say what funny stuff could happen if I cleaned my room. I don't know anything funny that could happen. so help me? :D

185. ## english

what are some background information on the Aeniad and society at the time of its popularity

186. ## math

what is the cost in dollars to steam clean a room W yards wide and L yards long if the steam cleaners charge 10 cents per square foot?

187. ## math

Bayside insurance offers two health plans. Under Plan A Giselle would pay the first \$80 of her medical bills, plus 30% of the rest. Under Plan B Giselle would pay the first \$140 but only 25% of the rest. For what amount of medical bills with plan B save

188. ## math

44 more thatn Q algebraic expression

189. ## algerbra

84=12(3y+1) a.The solution is y= b.The solution is all real numbers c.There is no solution

190. ## Math

Brenda and her family were driving to her grandmother’s house during a holiday. During the drive, Brenda fell asleep halfway through the trip. When she awoke, her family still had to travel half the distance that she had traveled while she was sleeping.

191. ## Physics

Tarzan, played by Patrick Huard, 60 kg, must cross a stream 5 m wide, and full of hungry crocodiles. To do this, decides to slide along a sloping tree trunk, hollowed and moist so that there is no friction. After the trunk, there is a part of 3 m platform

192. ## Religions of the world

Name at least two effects that organized religion has had on society and provide examples from past or present world events that illustrate your examples.

193. ## ideas

i know it's lat,but it's almose my bed time.um do grandparents always be kind of rude and always have different opinions.well sometimes that happens.so what should i do.ms.sue what school do you do to and how old are you.let me guess,you are 12. am i right

194. ## math

I have a unit circle test tomorrow(converting sin csc cot tan sec cos of radians to numbers(ie cos (pi/4) == root2 over 2) what is a good way to study

195. ## math

if the perimeter of a rectangular house is 44 yards, and the length if 36ft, what is the width of the house?

196. ## SCIENCE-CELLS

HI, I need the functions of the following parts of a cell: 1.Cytoplasm 2.Nucleus 3.Nucleolus 4.Starch Grains 6.Smooth ER 5.rough ER 6. Ribosome I went on a lot of websites already, but they were all very confusing. Thanks to anyone who helps!

197. ## Physics

A car starts from rest and travels for 6.0 s with a uniform acceleration of +1.5 m/s2. The driver then applies the brakes, causing a uniform acceleration of -2.0 m/s2. If the brakes are applied for 3.0 s, how fast is the car going at the end of the braking

198. ## ENGLISH

What are the major errors found in text book of JK BOSE "INTERACTIONS IN ENGLISH"of eight standard?

199. ## Trigonometry

Help trig question involving discriminant? a)Find the value of the discriminant. b)Use any method to find the real roots of the equation if they exist. 2x^2+7x=0

200. ## trig

5. If the angles X and Y each measure between 0° and 90°, and if sinX = cosY, what is the sum of the measures of the angles X and Y?

201. ## physics

A block of mass m is held against a spring of spring constant k which is compressed a distance Ax. On the shaded region (d = 2 m), there is a coefficient of kinetic friction = 0.3 microcontroller, which then applies the rest of the course takes place

202. ## Systems Analysis, Design, and Implementation

May anyone help me on this 1- what are the Disadvantages of Structure Analysis? 2- what are the Disadvantages of Object-Oriented Analysis? Thanks

203. ## math

how do you write the measurement of 12x12x12 in exponential notation?

204. ## chemistry

what is a double replacement precipitation reaction and limiting reactants

205. ## calculus

Find a, such that the function f(x)=3x+rad(a-x^2) has the domain [-6,6].

206. ## Calculus

You are the owner of a delivery company with one truck. The trucks fuel economy is 1200/x miles per gallon when driving at x miles per hour (where 80 >= x

207. ## Algerbra 1

. In your industrial oven, you bake two baking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking sheet with 2 scones and 10 cookies. a. Write an expression that illustrates the total cost of all baked goods in the scenario

208. ## algebra

1. Which expression belongs in the space? |--------------- x-2 |x^2 + 7x - 18 -(x^2-2x) -------- 18 a.5x - 18 b.5x + 18 c.9x - 18 d. 9x + 18

209. ## Chemistry

A typical buffer used by biochemists is called Tris, which can be depicted as R3N. A buffer that is prepared by mixing 500ml of .05M R3N with 500ml of .05MR3NHCl at 25 C has a pH of 8.40. If this same buffer is placed in a cold room at 4 C the pH increases

210. ## Math

We have this thing called MAT and we have to do a survey this week. What's your favorite type of music? Pop Hip hop Rap Rock Depressing Songs Heavy Metal

211. ## Chemistry

Given HCL + SrO --- SrCL2 + H20 Calculate the mass of HCl in grams that would react with 4.85 kg SrO.

Nisa has grown up in a small village in the foothills. There was no electricity and water had to be hand pumped. They seldom saw people from the "outside." When she entered school the bus had to pick her up at 6:30 a.m. in order for her to arrive at school

213. ## Math

How do you do scientific notations?

214. ## Accounting

What are some of the different types of budgets? Describe in detail one type of budget covered in the text. Describe what the budget is used for and what information it provides a business. As you respond to your classmates, discuss how the budget you

215. ## English

Thank you very much. What do you think of such a project? I need your help to check vocabulary on endangered species. Which words are possible? 1) A conservation programme is a programme helping endangered species to survive. 2)It protects endangered

216. ## Social Studies

i left my textbook in school but i have the American Nation.. i just need to know what the Geography questions are on page 664... only #1-3

217. ## Calculus(Pre)

What is linear speed and angular speed (In Trignometry)

218. ## math

how many different tetrahedrons are determined by ______ given no four are coplanar? 4 points in space 9 points in space 15 points in space n points in space

219. ## College pre-algebra

how do I simplify the following expressions and show my work? 6+5[(12 div. by2)+5]. (4div.by2)+8(5-3)to the second power. -8-72Div.by9x4to the second power + 11.

220. ## English

I have a few more doubts. Thank you. The next morning (Can you say "on the next morning?) We are being showed (is is a mistake or "shown" is correct?) I waited for her to prepare/get ready (Are both possible?)

221. ## Math

These animals live in a big garden : 37 snails 49 worms 12 moths

222. ## English

I urgently need you to check these sentences I have to include in an e-mail. As far as the project is concerned, I would like to know the opinion of your science teacher. I hope they will help me find the proper words. 1)Thank you for your email of today.

223. ## calculus

the graphs of f(x0=x^3 and g(x)=3x+5 have one intersection point. Determine the x-value for this intersection point using Newton's Method with an initial estimate of x1+2. You should use this method 3 times in order to obtain estimates x2, x3, and x4

224. ## algebra

The stopping distance d of a car after the brakes are applied directly as the square of the speed r. If a car traveling 80mph can stop in 360ft, how many feet will it take the same car to stop when it is traveling 90mph

225. ## History

What were the three distinct arenas where the pearl harbor war was being fought? Is it Warships in the harbor; Airfields; Schofield Barracks? Of these, which was determined to be the priority region by the western Allies?

226. ## english

In the sentence: Not only it does affect women and children, but it also affects our society and our future generations. is the sentence correct? Thank you :)

227. ## Statistics

Olive-Oil producers have expanded to approximately 120 producers statewide. Analysts estimate the average price consumers pay for a bottle of olive oil is \$21, with a standard deviation of \$2.40. What is the probability that the average price paid by a

228. ## history

"English peoples lives were not affected very much by the building of castles." To what extent do you agree? how am I meant to start? what should I say?

229. ## Math

Heath wants to subtract 14-9. What is the best way to decompose 9 to solve this problem? A. 4 and 5 B. 3 and 6 C. 2 and 7 D. 1 and 8

230. ## Math

Ms Sue, How did you get that answer? Can I get an example? My current question was 39 and f more and your answer was 36 + f

231. ## English

1. The other robber forced me back to the safe. (What is the part of speech of 'back' in the sentence?) 2. He was carring the glass necklace and started down the stairs. 3. He was carring the glass necklace and started coming down the stairs. 4. He was

232. ## English

At night, the two necklaces are kept together in the safe on the second floor. (situation: after one necklace was stolen.) (What is the active form of this passive sentence between the following?) 1. At night, I keep the two necklaces together in the safe

233. ## Physics help someone please

An 800 g, 40.0 cm diameter hollow sphere is rolling along at 4 m/s when it comes to a 25 degree incline. Ignoring any friction, how far along the incline does it roll before it stops and reverses its direction?

234. ## Physics

A satellite made of aluminum with mass 3500 kg travels on circulated path in 100 km height over the earth. Because of airresistance of the airveil the satellite loses energy and falls in a spiral down to earth. a) What is the mechanical energy of the

235. ## physics

Physics force-a bat hits a baseball and applies a force of 450 newtons to the ball.how much force does the ball exert on the bat

236. ## Algebra

Need help factoring 7x^2 + 7x -20

237. ## Happiness

This is a little survey I'm conducting for school. How often are you happy on a regular day? Choose one: 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%

238. ## Physics

A ball on a 6.5 m long string swings down and wraps around a post that is 4.0 m below the post the string is attached to. If the ball is released level with the post to which it is attached, what will be the velocity of the ball when it is at its highest

239. ## algerbra 1

5 Multiply 3.(-5.(-3).(-10)=

240. ## chemistry help me ASAP

ComPLETE THE FOLLOWING EQUALITIES 1molBa(OH)2FU=____g Ba(OH)2=____Ba(OH)2FU 1Na atom=______amu Na

241. ## Physics - Rotational Motion

A ball of mass 5.3 kg and radius 8 cm rolls without slipping horizontally at 4.3 m/s and hits a spring attached to a wall. What is the maximum change in length of the spring if the spring constant k=41100N/m? (Assume the floor is frictionless)

242. ## math

What is the principle of powers? Describe in your own words. When solving a radical equation, how do we use the principle of powers to eliminate radicals? Demonstrate with an example.

243. ## Physics/Engineering

1. The problem statement, all variables and given/known data I am using a Vishay strain indicator with it hooked up to a strain gage hooked up 1" away from the wall on the solid beam. The beam is .5" by .5", and it is solid. The beam is 16" long and I am

244. ## Science

What will happen to the path of a toy rocket when it's lauched.

245. ## Fine Art 7

I'm drawing a earth and drawing people holding hands (their clothes are going to be in rainbow), is there any culture that wears the following colors: red, orange, yellow, green, blue, purple. Like for example when I'm drawing a Jamaican person their

246. ## post

retire in 30 yrs. annual deposits in ira to accumulate 450,000 in 30 years at 10% per year average what is the annual contribution?

247. ## Criminal Justice

Please point me in the right direction. What would happen if the role of the police were lessened as it applies to the theory and practice of community policing?

248. ## Spelling

The word "slippery" almost feels slippery! This may have to do with the blending of "s" and "I" so that the word glides or slips out of your mouth. Many English words seem to imitate their meaning. Try to record at least six such words. Plz help me-I

249. ## math

Is this correct 26 more than z is 26+z

250. ## math

an amount invested in an account that offers 5% interest which is compounded annually. how long will it take for this amount to double?

251. ## English

Can you please help me rephrase this song? 1)The song is about a successful city-dweller caught in a rat race. However, he is tired of continuously competing for success and leading a very stressful life in the city. 2) He decides to move to the country to

252. ## Chemistry

I've exhausted possibilities to find an isotope that has 42 protons and 44 neutrons; does one exist? Molybdenum has 42 protons ... but 54 neutrons so that isn't it. I'm hoping that Dr. Bob can figure this one out for me! You've been helpful with a prior

253. ## calculus

if a snowball melts so that its surface area decreases at a rate of 1 cm^2/min, find the rate at which the diameter decreases when the diameter is 43cm. Leave pi in your answer please.

254. ## World History

Which Christian empire in southwest Asia did the Ottomans conquered? What was the capital of the Christian Empire in southwestern Asia that the Ottomans conquered?

255. ## math

In 69 games, a player blocks 234 shots, what is his blocks per ratio?

256. ## physics

A horizontal force of 5.0 N is required to move a body of mass 3.0 kg with uniform velocity along a horizontal floor. Find the coefficient of kinetic friction.

257. ## MATH

Source: At the end of 1993, scientists tracked 1550 nonfunctional components in orbit and projected 42 such objects are added each year. Suppose that an average of 15 of these are brought back to Earth each year. Question. Let t represent time in years.

258. ## Social Studies

I am supposed to answer the question by looking at a map: The railroad runs blank and blank. What do they mean?

259. ## Algerbra 1

1 15-4.10-14 2 9x-18=54 x= 3 Multiply 8/9(b-72) 4 Solve using the multiplication principle -10x=260 solution for x= 5 Multiply 3.(-5.(-3).(-10)=

The entire class was in an uproar. The teaching assistant had proctored the exam while the professor was attending a conference, and the test seemed unrelated to the chapters that they had studied. The students’ complaints are based on the test’s lack

261. ## Physics problem.. :/

A 8.7 kg block is on a frictionless surface. It is connected by a string over a pulley to a 8.6 kg hanging mass. Find the acceleration of the block. ?

262. ## Chemistry

I am stuck in the PLUG-N-CHUG PART. Here is what I get when I plug-n-chug...1.75 x 10-5 + log[0.164M/0.225M] I get the pH as 4.62 not confident in answer....please guide me to correct answer

263. ## math

The Ministry of Finance published the FY2009 Tax Reform ( Main Points) on December 19, 2008. Included in the Reform is the introduction of a 2- year measure allowing immediate depreciation for investment in energy- saving facilities and appliances. If this

264. ## Math

my 10 digit is 4 times my 100 digit. who am I?

265. ## Algbra

You get five packages of paper for \$3.00. How much are you paying per package?

266. ## algebra

Is x=6 a solution to -2x-4=-8 I think that it is yes.

15-4.10-14=

268. ## Social Studies 7R (Letter)

Please check this letter if it's good and if there any grammar mistakes. My most exalted Monarch - Your Majesty Queen Isabella, I am writing this letter most humbly for you to consider my request for three small ships and a crew so that I may sail west and

269. ## English

1. The stolen diamond necklace is insured for five million dollars. 2. I have insured the stolen diamond necklace for five million dollars. 3. I insured the stolen diamond necklace for five million dollars. 4. I insure the stolen diamond necklace for five

270. ## Math

Prove these identites I really need help with these I don't understand how to do them !!!! sin^2+tan^2=sec^2-cos^2 sin^2 sec^2 +sin^2=tan^2+sin^2

271. ## math

Prove these identites I really need help with these I don't understand how to do them !!!! sin^2+tan^2=sec^2-cos^2 sin^2 sec^2 +sin^2=tan^2+sin^2

CH3CH2CH2CH( a c on top of the ch and a triple bond on top of the c)CH2CH2CH2CH3

273. ## microeconomics

if the price elasticity of demand for a cup of tea is equal to 3, how would you interpret this result?

Source: At the end of 1993, scientists tracked 1550 nonfunctional components in orbit and projected 42 such objects are added each year. Suppose that an average of 15 of these are brought back to Earth each year. Question. Let t represent time in years.

-94+(-19)

276. ## English

Here is the second part of the email. 1) We plan to involve a group of 18/20 students in year 11 who are high-achievers and are willing to devote sufficient time and energy to the project. 2) By the way, is the French school or your school acting as a

277. ## science

what did galileo do in science that made him so famouse

8/9(b-72)=

279. ## algerbra 1

6 18/-2= or is it undefined

280. ## algerbra 1

7 -2+t=9 solution t=

281. ## Math

solve: 4x^2 + 14x = 0 help me solve

282. ## Criminal Justice

Please point me in the right direction. What would happen if the role of the police were lessened as it applies to the theory and practice of community policing?

283. ## math

is there a good memorization technique for radian to unit circle coordinate?

284. ## calculus

Calculate dy/dx if Ln(x+y)=e^x/y

285. ## Chemistry

CH3CH2CH2CH( a c on top of the ch and a triple bond on top of the c)CH2CH2CH2CH3

286. ## Math

Simplify: -1+9(5-3m) Solve 10=10-2m Solve: 4b

287. ## physics

a ball is thrown up vertically and caught at 9.3 sec. what is the intial velocity

288. ## statistics

poisson distribution: please show and solve. # of purchases in the next 24 hours.

289. ## Chemistry

predict whether nitrate salt solutions containing metal ions with the following outer shell electron configurations will be colored or colorless: [Ar] 3d2 and [Kr] 4d10

290. ## Math

1. 9-5 3/4 = 2. 7/8 + 3 1/4 = 3. 5 1/9 -2/3 = 4. 5/8 + 5/6 = 5. 13 1/2 + 7 2/3 =

291. ## Algebra 2

A=2*3.14*pw A=22cm squared w=2 solve for p

292. ## History

What was Alan Seeger do that made an impact during WWI?

293. ## cant find it

according to recent curriculim guidelines, what percent of the class time should students spend in hands-on learning experiences?

294. ## English

I have a few more doubts. Thank you. 1) I waited for her to prepare heself (?) How high is the fare to London? Are there any reductions for students? 2) How large is the population of Italy? To the North Italy borders to Austria, Switzerland etc (is "to

295. ## science

What are some ways that industry and government help solve the problem of global warming?

The testing company has hired qualified people in the field to administer the new test bank to subjects of different ages and ethnic backgrounds. They need a sizable number of scores from inner city, urban, and country/small town subjects. Their goal is to

297. ## Math

Find two consecutive whole numbers such that 3/4 of the first number is 5 more than the second number.

298. ## Math

How do you find x+3=-2 ?

299. ## algerbra

-x/7=1/26 the solution is x=___________

[4-8(3-6)]=

301. ## math

39 and f more

pictures of jacimain people earing their clothes in organge

303. ## social studies

i to write a wellcome letter,wellcoming the new colonies to the United State and ease the fears

ComPLETE THE FOLLOWING EQUALITIES 1molBa(OH)2FU=____g Ba(OH)2=____Ba(OH)2FU 1Na atom=______amu Na i don't understand how to do this ????

305. ## chemistry!

what is a dipole and what are ion-dipole attractions, dipole dipole attractions and dipole-induced attractions? examples.. would rly help me understand it better

306. ## SCIENCE

What is the history of sonar

307. ## Anthropology11

What would a teacher be thinking when bullying a student with a disability?

308. ## math

Prove these identites I really need help with these I don't understand how to do them !!!! sin^2+tan^2=sec^2-cos^2 sin^2 sec^2 +sin^2=tan^2+sin^2

309. ## English 7 (word)

what does discriminated against means????