# Questions Asked onOctober 30, 2012

1. Write the following ratio in simplest form: 32 min:36 min 8:9 8:36 32:9 128:144 2. Marie saved \$51. On Wednesday, she spent \$8 of her savings. What ratio represents the portion of her total savings that she still has left? 43:8 8:51 43:51 59:51 3. The

2. ## Math for Steve

1. Write the ratio in the simplest form. 45 : 15 a. 9 : 3 b. 3 : 1 c. 1 : 3 d. 4 : 1 4. Jake sold 39 tickets to the school fair, and Jeanne sold 12 tickets. What is the ratio, in simplest form, of the number of tickets Jeanne sold to the number of tickets

4. ## english

Animals Possess sensory powers that humans lack. Homing pigeons fly with great speed and accuracy when 1)___(e)d with messages to faraway places. How do Pigeons 2)___ themselves in unfamiliar regions? This remains something of a(n) 3)___. The mystery,

5. ## math

Area of a rombus: A=1/2d1d2. Solve for d1

6. ## Steve Math

1. Write the ratio in the simplest form. 45 : 15 a. 9 : 3 b. 3 : 1 c. 1 : 3 d. 4 : 1 4. Jake sold 39 tickets to the school fair, and Jeanne sold 12 tickets. What is the ratio, in simplest form, of the number of tickets Jeanne sold to the number of tickets

Shelly sews a blanket that has an area of 170 square feet. It has 30 square blocks, each the same size. What is the approximate length of each side of a block?

Johanna carves a square block of wood that has on one side an area of 872 square inches. To the nearest integer, what is the length of the side?

9. ## Chemistry

The energies, E, for the first few states of an unknown element are shown here in arbitrary units. n 1 E -11 n 2 E -5 n 3 E -2 n 4 E -1 n ... E ... n infinite E 0 A gaseous sample of this element is bombarded by photons of various energies (in these same

10. ## Physics

A bicycle has wheels of radius 0.32 m. Each wheel has a roatational inertia of 0.080 kg•m^2 about its axle. The total mass of the bicycle including the wheels and the rider is 79 kg. When coasting at constant speed, what fraction of the total kinetic

11. ## Steve 3 more questions.

18.Cinema A sells a twelve-pack of movie passes for \$66. Cinema B sells a five-pack of movie passes for \$28. a. Find the cost per movie pass for each cinema. Which offer is cheaper per movie pass? b. How much do you save per movie pass if you choose the

12. ## MATH

In a study 42% of adults questioned reported that their health was excellent. A researcher wishes to study the health people living close to a nuclear power plant. Among 13 adults randomly selected from this area, only 3 reported that their health was

13. ## math

The scale factor for two similar rectangles is 3. If the area of the smaller rectangle is 8 m2, what is the area of the larger rectangle? (1 point)24m2 192m2 72m2 108m2

Help please i don't understand 2, 4, and 10 quick please thanks 1. Write the following ratio in simplest form: 32 min:36 min 8:9 8:36 32:9 128:144 2. Marie saved \$51. On Wednesday, she spent \$8 of her savings. What ratio represents the portion of her total

15. ## Physics Inertia!

Rank from fastest to slowest. a)a solid ball rolling down a ramp without slipping b)a cylinder rolling down the same ramp without slipping. c)a block sliding down a firctionless ramp with the same height and slope. Select all that apply. The ball is

16. ## Calculus

1. Locate the absolute extrema of the function f(x)=cos(pi*x) on the closed interval [0,1/2]. 2. Determine whether Rolle's Theorem applied to the function f(x)=x^2+6x+8 on the closed interval[-4,-2]. If Rolle's Theorem can be applied, find all values of c

17. ## General Chemistry 1 college class

The tomato is dropped. What is the velocity, , of the tomato when it hits the ground? Assume 82.7 of the work done in Part A is transferred to kinetic energy, , by the time the tomato hits the ground. Express your answer numerically in meters per second

18. ## college physics

A 3rd baseman is throwing a ball to 1st base which is 39.0m away. It leaves his hand at 38.0m/s at a height of 1.50m from the ground and makes an angle of 20 Degrees. How high will it be when it gets to 1st base.

19. ## Chemistry

What is the zeff value for a valence electron in an oxygen atom? An explanation would be much appreciated.

20. ## Physics

The drawing shows three particles far away from any other objects and located on a straight line. The masses of these particles are mA = 363 kg, mB = 517 kg, and mC = 154 kg. Find the magnitude and direction of the net gravitational force acting on each of

21. ## Calculus

A farmer has 120 meters of wire fencing to make enclosures for his pigs and cows. The rectangular enclosure he is considering will have one side up against a barn (in the center of one side that is 150 meters long, so the enclosure won't require fencing

22. ## Physics

A star rotates in a circular orbit about the center of its galaxy. The radius of the orbit is 6.2 x 1020 m, and the angular speed of the star is 4.3 x 10-15 rad/s. How long (in years) does it take for the star to make one revolution around the center?

23. ## Arts and Ideas

Can the extravagance and costs, both of currency and lives, be justified in the opulent architecture commissioned by "divinely empowered" individuals of ancient cultures? Name a comparable example of opulent architecture from today's society.

24. ## physic

11. What is the acceleration of a 4000 kg airplane that has a force on it of 24,000 N

25. ## Physics

A(n) 95.7 kg boxer has his first match in the Canal Zone with gravitational acceler-ation 9.782 m/s2 and his second match at the North Pole with gravitational accelera- tion 9.832 m/s2.

26. ## Physics

During a storm, a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle between two fence posts. The limb exerts a downward force of 148 N on the wire. The left section of the wire makes an angle of 12°

27. ## Physics

A 46.4-N force is applied to the outer edge of a door of width 1.26 m in such a way that it acts (a) perpendicular to the door (b) at an angle of 43.0 degrees with respect to the door surface, (c) so that the line of action of the force passes through the

28. ## math

Shelly sews a blanket that has an area of 170 square feet. it has 30 square blocks, each the same size. What is the approximate length of each side of a block. a. 1 foot b. 2 feet c. 3 feet d. 4 feet I doubled checked and the problem is correct. I just

29. ## Algebra

The length of a rectangular playground exceeds twice its width by 25 meters, The perimeter of the playground is 650 meters. Find the demensions of the playground.

30. ## Physics

Which of the following statements are true? Select all that apply. Impulse has units of mass times velocity. During a collision, an object's linear momentum is equal to the magnitude of the impulse. The impulse of a collision is equal to the duration of

31. ## ENGLISH II HELP PLEASE!!

Which type of faulty logic does this sentence contain? Although the cheeseburger is the most sought-after item on our menu, it is really difficult to manage the crowd in the drive-up lane because of the high demand; so, the cheeseburger should be taken off

32. ## Math

A phone call costs \$0.58 for the first 3 minutes and \$0.15 for each additional minute. If the total charge for the call was \$4.78, how many minutes was the call?

33. ## statistics

Based on data from a statistical abstract, only about 12% of senior citizens (65 years old or older) get the flu each year. However, about 24% of the people under 65 years old get the flu each year. In the general population, there are 15% senior citizens

34. ## Algebra

Tina's change of \$1.35 consisted of quarters and dimes only and she received twice as many dimes as quarters. How many dimes were there?

35. ## physics

Starting from rest, a 75 kg skier slides down a 17.0° slope. If the coefficient of kinetic friction between the skis and snow is 0.120 and it takes 16.9 s to get to the bottom, how long is the ski trail? (Use g = 9.8 m/s2.)

36. ## SAT Essay

Assignment: Should people take more responsibility for solving problems that affects their communities or the nation in general? Plan and write an essay in which you develop your point of view in this issue. Support your problems with reasoning and

37. ## Calculus

1. Find all relative extrema of the function f(x)=x^(6/7)-3. Use the Second Derivative Test where applicable. 2. Find all relative extrema of the function f(x)=2x^4-16x^3+4. Use the Second Derivative Test where applicable.

38. ## physics

A uniform rod of mass M = 0.245kg and length L = 0.49m stands vertically on a horizontal table. It is released from rest to fall. (a) Calculate the angular speed of the rod, the vertical acceleration of the moving end of the rod, and the normal force

39. ## math

a contractor is considering a sale that promises a profit of \$20,000 with a probability of 0.7 or a loss (due to bad weather, strikes, and such) of \$10,000 with a probability of 0.3. What is the expected profit?

40. ## ap chemistry

A 4.47 g sample of a molecular compound is dissolved in 96 g of tetrachloromethane. The normal boiling point of the solution is 61.51 degrees celcius, the normal boiling point for CCl4 is 61.2 degrees celsius. The boiling point constant for CCl4 is

41. ## english

We walked along the mountain path looking for unusual flowers. Looking for unusual flowers. what is the grammatical function

42. ## Geometry

A farmer wants to fence in a rectangular pen using the wall of a barn for one side of the pen and 115 feet of fencing for the remaining 3 sides. What dimensions will give her the maximum area for the pen?

43. ## college physics

A cannonball shot at an angle of 60 Degrees had a range of 196m. What was its initial speed?

44. ## chemistry

calculate number of moles of h2so4 needed to react with 25.0ml of .20M liOH

45. ## math

I am moving to a new house. My old house is 3 kilometers from my new house. How many meters is the old house from the new house?

46. ## Math

You have 3 1/3 yards of ribbon. You want to cut the ribbon into pieces to make bows. Each bow uses 4/5 yard of ribbon. How many bows can you make?

47. ## Math

Amber made 5 3/4 pitchers of iced tea for her friends. They drank 2/3 of the iced tea. How many pitchers of iced tea did they drink? Do I subtract to get the answer?

48. ## Chemistry

Please help me, determine the molarity of a solution containing 2.5 moles CuSO4 in 4.2 L of water

49. ## Math

Seth has already walked 5/8 mile. It takes 1 3/8 miles to get to school. How much farther does he have to go? 3/4? Aviva needs fresh lemon juice to make cheesecake. She bought 2 lemon but needed only 1 1/4 lemons for the amount of juice she needs. How much

50. ## Physics

A(n) 95.7 kg boxer has his first match in the Canal Zone with gravitational acceler- ation 9.782 m/s2 and his second match at the North Pole with gravitational accelera- tion 9.832 m/s2. a) What is his mass in the Canal Zone? Answer in units of kg b) What

51. ## College Physics

At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by theta(t)= 258t - 20.4t^2 - 1.47t^3 How many revolutions does the motor shaft turn through between the time when the current is reversed

52. ## algebra 1

micheal earns 6% commission on his sales. If he earned \$1,800 in commission, how much equipment did he sell?

53. ## physics

The space probe Deep Space I was launched on October 24, 1998. It's mass was 474 kg. The goal of the mission was to test a new kind of engine called an ion propulsion drive. This engine generated only a weak thrust, but it could do so over long periods of

54. ## Organic Chemistry

An expanded structural formula shows all the atoms of the molecule and all the bonds between the atoms in the molecule. Draw the expanded structural formula for 1,3-dichlorocyclopentane. Draw the structure by placing atoms on the grid and connecting them

55. ## chemistry

What is the de Broglie wavelength in nm of a buckyball, (molecular formula C60), moving at speed 250 m/s? I don't understand how you find the mass from the molecular formula C60. The answer is 2.2*10^-3nm. I tried multiplying the mass of carbon by 60, but

When is the best time to read review or discussion questions? A. Immediately after you have finished all of the reading. B. After you write your notes. C. Before you begin any detailed reading. D. Throughout your detailed reading.

57. ## Chemistry

Assuming that the smallest measurable wavelength in an experiment is 0.330 fm(femtometers), what is the maximum mass of an object traveling at 157 m·s^–1 for which the de Broglie wavelength is observable? mass = ? kg Chemistry - DrBob222, Monday,

58. ## calculus

Find any critical numbers of the function h(x)=sin^2(x)+cos(x) 0 < x < 2π

59. ## Math 115

The area of a parallelogram is 3.36 square feet. The base is 2.8 feet. If the measures of the base and height are each doubled, find the area of the resulting parallelogram.

60. ## math

how many cattle are ther eon the lazy circle double-o bar four square ranch?

61. ## math

How much money has to be invested at 4.3% interest compounded continuously to have \$19,000 after 16 years?

62. ## math

area of a trapizoid:A==h/2(b1=b2). solve for h don't know how so solve it

63. ## PERSONAL FINANCE

IF YOU WANT A RISK PROOF REAL ESTATE INVESTMENT, INVEST IN:

64. ## physical

Adult cheetahs, the fastest of the great cats, have a mass of about 74 and have been clocked at up to 70 (31 ).

65. ## Physics

A ball rolls off a tabletop 0.900 m above the floor and lands on the floor 2.60 m away from a point that is directly under the edge of the table. At what speed did the ball roll off of the table? I would really appreciate it if someone could explain to me

66. ## Physics

What would be the final temperature of a mixture of 80 g of 25 c water and 150 g of water at 75 c?

67. ## physics

What force must be applied to push a carton weighing 350 N up a 19° incline, if the coefficient of kinetic friction is 0.45? Assume the force is applied parallel to the incline and the velocity is constant. (Enter the magnitude of the force.)

68. ## social studies

what city is 36 degrees north and 106 degrees west

69. ## Physics

You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the oars) toward you, it moves a distance of 1.2 m in a time of 1.4 s. The readout on the display indicates that the average power you are producing is 78 W. What

Which of the following has the greatest effect on the formation of rain or snow? A)cloud cover C)air pressure B)humidity D)temperature My answer is C) am i right, if not please tell me what you got.

71. ## physics

A 67.5 kg hoop rolls along a horizontal floor so that its center of mass has a speed of 0.090 m/s. How much work must be done to stop it?

Buy, sell, and trade on the Internet, and become a millionaire overnight! Which propaganda technique is used in this sentence? bandwagon glittering generalities faulty cause and effect snob appeal

73. ## english

instead of hiring a lawyer, the defendant will__________ to plead her own case in court.

74. ## Statistic

Your microbrewery is not producing beer quickly enough. You have been conducting an experiment on the relative growth rate of the two yeast types by measuring the turbidity, using absorbance units, of the growth medium. You obtained the following two data

75. ## Differential Equations

A government agency has a current staff of 5000, of whom 25% are women. Employees are quitting randomly at the rate of 100 per week. Replacements are being hired at the rate of 50 per week, with the requirement that half be women. Interested in the rate of

76. ## englsihh 2

Which propaganda technique is used in this sentence? Pure, fresh, real apple juice, packaged to deliver the freshness of nature straight to you. A snob appeal B transfer C bandwagon D glittering generalities

77. ## grammar action and linking verbs(mental or physica

In China, shrines honor ancestors. Is honor an a. action verb(physical)b. action verb(mental) c. linking verb d. not a verb

78. ## English

Links to find the answer to this? Help?: Discuss the structure used by the King. How does he choose o put his letter together and how does this lead to a better understand of the ussues he has and the solution he is proposing. Cite at lesat three eamples

asked by Martin Luther King Junior
79. ## Statistic

You have been screening compounds with the Ames test to determine if they are mutagenic. If a compound is mutagenic, more colonies will grow in the presence of the mutagen. You have obtained the following data from triplicate samples: Number of mutant

80. ## Physic

A 10 kg particle moving along the x-axis experiences the force shown in figure. The particle goes from v=1.0m/s at x=0 and v=5.0 m/s at x=2. What is the f max?

A luggage carousel at an airport has the form of a section of a large cone, steadily rotating about its vertical axis. Its metallic surface slopes downward toward the outside, making an angle of 21.0° with the horizontal. A 37.0 kg piece of luggage is

82. ## algebra 1

Solve the following systems of linear equations using any algebraic method.If possible,check your solution. 1)2x+5y=3 X-3y=7 2) 3y=11-2x 3x=y-11 3)8x-6y=14 12x-9y=18

83. ## Geology

If glaciers worldwide were to melt, would temperature around the glacier rise, fall or remain the same as the glacier was melting?

84. ## physics

A spherical generator is used to produce a -15.00D surface on glass of refractive index 1.80. The diameter of the cutting tool is 80mm and the radius of the cutting surface is 4mm. What is the angle between the axis of the tool and the axis of the lens?

85. ## Spanish

Preterite vs. Imperfect I'm just trying to clarify the differences. For example: 1. The food was delicious-imperfect? 2. The house was very big-imperfect? 3. The bump on his head was a tumor-imperfect? Are these right? or should they be preterite?

86. ## Statistic

You are the microbiologist at a national food processing chain. Two independent subcontractors are bidding to produce your latest food item that should really boost sales. It is your job to determine which plant should get the bid based on their microbial

87. ## Biology

In humans, W=widows peak while w=normal hair line and A=attached earlobes while a= unattached earlobes. A heterozygote in both traits reproduces with a similar heterozygote in both traits. What is the chance of any one child having the same genotype of the

88. ## Programming

Read two numbers from the keyboard Display the menu options as follows: 1 - computes the sum of two numbers. 2 - computes the difference (first minus second). 3 - computes the product of the two numbers. 4 - if the second number is not zero, computes the

89. ## Chemistry

Assuming that the smallest measurable wavelength in an experiment is 0.330 fm(femtometers), what is the maximum mass of an object traveling at 157 m·s^–1 for which the de Broglie wavelength is observable? mass = ? kg Chemistry - DrBob222, Monday,

90. ## math

the manager of a starbucks store plans to mix A grade coffee that cost 9.50 per pound with grade B coffee that cost 7.00 per pound to create a 20 pound blend that will sell for 8.50 a pound. how many pounds of each grade coffee are required?

91. ## chem

which one has the highest boiling point based on its intermolecular weight: HF, NH3, HCl

92. ## elementary

write your own sentence using the words: me

93. ## chem

which one has the highest boiling point based on its intermolecular weight: HF, NH3, HCl

94. ## Algebra

Two trains, one express and one local, leave Indianapolis at noon and head for Chicago 220 miles away. The express travels twice as fast as the local and arrives 2 hours ahead of the local. Find the speed of each train.

95. ## algebra

Chellise saves one fifth of her allowance and spends two thirds of her allowance at the mall. What fraction of her allowance remains?

96. ## Calculus

1. For the function f(x)=4x^3-30x^2+4: a) Find the critical numbers of f(if any); b) Find the open intervals where the function is increasing or decreasing; and c) Apply the First Derivative Test to identify all relative extrema 2. For the function

97. ## science

a temperature and pressure of 23.5°C and 1.05 atm, determine the volume of sulfur dioxide produced when 150.0 g of dihydrogen sulfide react in excess oxygen.

98. ## Chemistry

Assuming that the smallest measurable wavelength in an experiment is 0.330 fm (femtometers), what is the maximum mass of an object traveling at 157 m·s^–1 for which the de Broglie wavelength is observable? mass = ? kg I know the formula but I don't know

99. ## History

Why did the British view colonial taxes as fair? Why did colonists argue British taxes were unfair?

100. ## science

Which of the following has the greatest effect on the formation of rain or snow? A)cloud cover C)air pressure B)humidity D)temperature My answer is C) am i right, if not please tell me what you got.

101. ## math

girl is 6 feet tall and a pine tree next to her is 42 feet tall and casts a shadow that is 28 feet. how long is the girls shadow

102. ## TRIG

Triangle FGH has vertices F(0, 10), G(10, 0), and HR(1, -1). After rotating triangle FGH counterclockwise about the origin 75º, the coordinates of G' to the nearest hundredth are (2.59, ?).

103. ## Math

Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of In(x) in your answer.) log[8.4](112)=

104. ## Math

An SUV can accelerate from 0 to 60 mph in 10 59/100 seconds. A sports car takes 9 86/100 seconds to get from 0 to 60 mph. How much faster does the sports car get to 60 mph? I'm not sure about this one but I think 127/100. Is there suppose to be a whole

105. ## Computer Science

public class RandomPhoneNumber { public static void main(String[] args) { int num1=(int)(Math.random()*7); int num2=(int)(Math.random()*7); int num3=(int)(Math.random()*7); int set1=(int)(100+Math.random()*642); int set2=(int)(1000+Math.random()*8000);

106. ## Physics

An object m is released from the top of an inclined, frictionless plane that is inclined at angle theta with the horizontal. The top of the ramp has height h. Which of the following would change the acceleration of the object if it were released from the

107. ## Intro to Physics

A uniform hoop and a disk, having the same mass and the same radius, are released simultaneously from rest at the top of a ramp. Which object reaches the bottom of the ramp first? The ramp is 1.0meter high. The incline of the plane is 30 degrees. Assume no

108. ## maths

Two spheres of radius 6 cm and 4cm are inscribed in a right circular cone.The bigger sphere touches the smaller one and also the base of cone .find the height of the cone?

109. ## accounting

The trial balance of Bair Company includes the following balance sheet accounts. Identify the accounts that require adjustment. For each account that requires adjustment, indicate (a) the type of adjusting entry (prepaid expenses, unearned revenues,

110. ## chem

How many atoms are there in the following problems? which one has the most number of atoms? a. 5 molecuels (NH4)2S b. 9 molecules H2O2 c. 11 molecules O3

111. ## chem

How are we able to determine that jupiter is mostly methane gas and that the surface of the sun is mostly He and H? can anyone help me pls.

112. ## Social studies

How many percent of kids go trick or treating on Halloween Day in the USA or in another country?

113. ## Physics

An object turns without changing its speed. Which of the following is true? a) No net force was necessarily acting on the object b) A new force must have been acting on the object. c) Both of the answers above are possible I'm thinking that the answer is

114. ## Physics

A person is riding a bicycle, and its wheels have an angular velocity of 17.7 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is 12.4 revolutions. (a) How much time does

115. ## Geology

Is sledding done better when the air temperate is 25 degrees Fahrenheit or 0 degrees Fahrenheit? Why?

116. ## Math

Round to the nearest whole dollar. \$473.28

117. ## Lang. Arts

2. Read the following excerpt from “Signed, Sealed, Undelivered.” Writing letters that will never be read frees you to say anything at all. You can write to those people whose petty meanness stung you or whose significant cruelties really hurt you.

118. ## P.S

Explain how parachute works?

119. ## Physics

Consider a stainless steel annular disk with an outer radius 68mm and inner radius7.4mm. The mass of the disk is 1349 grams. The stainless steel annular disk is allowed to rotate on a frictionless table with the rotation axis at its center. The disk has a

120. ## math

Jackson swims 8 laps a day for a certain number of days. He swims 56 laps in all... Model this and write an equation.

121. ## Math/Derivative

Had a few more >.< if you could possibly show steps so i know for future that would be awesome1 thanks! f(x)=√(lnx+x) and f(x)=2^(x^2)

122. ## math

tulips are planted every four feet on a rectangle the sides are 16 feet and 12 feet how many tulips are there?

Monico needs to mix a 40% ethanol solution with a 60% ethanol solution to create 100 millileters of a 54% solution. How many millileters of each solution must Monico use?

124. ## math

Sharon is dividing her polished rock collection into bags. Each bag contains the same number of each color of rocks. She is placing the green and blue rocks into the same bags. How many rocks will be in each bag?

125. ## english

She possess a can do attitude. Is this sentence correct?

126. ## help

A lot is in the shape of a trapezoid. The sum of the bases is 180 feet. If the area of the lot is 8,100 square feet, what is the distance across the lot, i.e., the altitude of the figure?

A luggage carousel at an airport has the form of a section of a large cone, steadily rotating about its vertical axis. Its metallic surface slopes downward toward the outside, making an angle of 21.0° with the horizontal. A 37.0 kg piece of luggage is

128. ## physics

An object's velocity vector and linear momentum vector are always... a)parallel b)anti-parallel c)perpendicular d)none of the above

129. ## Chemistry

What determines whether or not the majority of acid is in the protonated form in solution? How does this incorporate both the pH of the solution and the pka of the acid?

Please help me with this problem, i don't understand how to do it. Thank you How many rectangles can you build with a prime number of square tiles?

131. ## Math

high temperatures for each day from Monday through Thursday were 42 degrees Fahrenheit, 37 degree, 44 degrees through Friday was 41 degrees Fahrenheit. Fridays low temperature was 4 degrees less than its high. What was Friday's low temperature?

132. ## Physics

Consider a stainless steel annular disk with an outer radius 68mm and inner radius7.4mm. The mass of the disk is 1349 grams. The stainless steel annular disk is allowed to rotate on a frictionless table with the rotation axis at its center. The disk has a

133. ## Algebra

Polly has 8 more nickels than quarters. if she has \$3.40 how many of each does she have?

134. ## chem

when is i8t ok to use M1V1=M2V2?

135. ## math

Tess adds 16 drops of yellow food coloring to a batch of frosting. This is 4 times the number of drops of red food coloring she added. Write an equation that shows how to find the number,r, of drops of red food coloring Tess added.

136. ## physics

Use energy methods to find the speed of a 2.0-kg block just before it hits the flor if the coefficent of kinetic energy of the 3.0-kg block and the table is 0.15m

137. ## chemistry

480 g of FeS2 is combined with 12.000mol of molecular oxygen. balanced chemical reaction is 4FeS2 + 11O2 ---> 2Fe2O3 + 8SO2 a. Which cheical will run out first? b. What mass of Fe2O3is produced?

138. ## Physics

A boy wishes to throw a rock into the river below the cliff where he is standing. The cliff is 50 M high and he can throw with a horizontal velocity of 30 m/s. how long does it take for the rock to reach the water? How far, in the horizontal direction,

139. ## Critical Thinking

The idea behind a comparative essay is, quite simply, that you take two or more things or ideas and compare their points of similarity or difference. For your second assignment in the Essay Series, create a comparative essay. In 1-2 pages, compare the

140. ## English

Please helpme identify the simple predicate in the sentence... This best-selling novel is unavailable for the next three weeks. choices.. a - is b - is unavailable for the next three weeks c - novel I think it is unavailable but that's not one ofthe

141. ## Algebra 1

What is an equivalent fraction to: 0.5(12z-7)-3.5z+3.5 I NEED HELP!!!

142. ## Algebra 1

What is an equivalent fraction to: 1/4(20z+10)+1/2z-2 1/4. I don't understand this.

143. ## chem

How are we able to determine that jupiter is mostly methane gas and that the surface of the sun is mostly He and H? can anyone help me pls

144. ## Math Hurry!

Gabriela traveled by motorcycle at an average speed of 17 miles per hour. Then, she traveled by car at an average speed of 12 miles per hour. In total, she traveled 56 miles for 4 hours. How many miles did Gabriela travel by car? (Round to the nearest

145. ## for ms. sue

Some of my post are being erased, does that mean that im about to be banded? I didn't say anything bad.

146. ## Math

Please help me, I'm having a hard time setting up this problem. George can plant a garden in 2 hours, and it takes Joyce 3 hours. They work together for 45 mins, and George leaves and Joyce finishes the job alone. How long does it take Joyce to finish

147. ## math

The art room has a box of crayons at each table, with 8 crayons in each box. There are 64 crayons in the art room... write an equation.

148. ## Math

I know that year 2010, the population is 38.447 million and year 2011, the population is 38.935 million. The formula given: A=36.1e^(0.0126*t) Determine the population in 2010 and 2011 to nearest thousand people. Use these values to determine the increase

149. ## chemistry 101

How intermolecular forces is responsible for the phases of matter?

150. ## math

Jim has two hens. Betty the hen lays an egg every 3 days and Ellie the hen lays one every 5 days. They both laid eggs yesterday. How many days will it be before they both lay eggs on the same day?

151. ## Chem

What's the formula for cobalt II nitride pentahydrate?

152. ## letter

John has demostrated the ability to work under pressure in the prescence of tight deadlines and demanding workload. I am writing a reference letter, how can I make this sentence better?

153. ## social studies

Can you help me? I am stumped! We are supposed to use our book to fill in the answers. This is the questions I need your help with 1. A (n) is a state's or a country's system of producing, and consuming goods and services. My answer is economy, but our

154. ## Math

In 2000 17 million workdays were lost due to strikes and labor disputes. In 2001 there were only 1 1/5 million days lost. How many more workdays were lost in 2000? 15 4/5?

155. ## science

At a pressure of 2.00 atm, a sample of air consists of 0.20 moles of nitrogen, 0.65 moles of oxygen and 0.15 moles of argon. What is the partial pressure of the oxygen?

156. ## Chemistry Lab

A 15.00 mL sample of a weak acid with Ka = 3.52x10-4, was titrated with 0.475 M KOH. The equivalence point was reached after addition of 19.5 mL of KOH with the phenolphthalein indicator. Determine the molar concentration of the original acid solution,

157. ## science

If Wire A has a poterntial difference of 50V across it and carries a current of 2A. Wire B has a potential difference of 100V across it and also carries a current of 2A. Compare the resistances, rate of flow of charge, and rate of flow of energy in the two

158. ## math

Zoe spent \$24 on some personalized mugs for her friends. Each mug cost \$6.... model this and write an equation.

160. ## math

there are three consecutive positive integers such that the sum of the squares of the smallest two is 221. write and equation to find the three consecutive positive integers let x= the smallest integer

161. ## organic chem

what is the exact weight of cucl2 added to 100ml of 2*10^-4 M solution of tetraphenylporphin

162. ## science

what is the force between two coaxially charged ring separated with distance 'd'? radius of both ring = 'R'

163. ## Physics

Traveling at a speed of 15.9 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.700. What is the speed of the automobile after 2.00 s have elapsed?

164. ## physics

If a cat chases a mouse for 1.15 s whail covering a distance of 19.6 m, what is the velocity?

165. ## \$Math\$

In scale drawings, how do you find the length of an object that is 60ft, and in the problem 1inch = 8 feet?

166. ## Calculus 2

The question is: n=0 E to infinity 4+sin(n)/3^n Does it converge or diverge? i'm doing this hw problem and I believe it converges according to other example? Is this the case?

167. ## math

\$16 added to an amount of money saved, s, then spend equally on 3 items

168. ## Math

Thank you Steve for your help! I need help on another question. I have to show 10/8 divided by 5/8 on a number line. I don't know how to set this up. I am lost!!! Please help to explain this. Thank you

169. ## Math

In geometry class, the girl to boy ratio is 7 to 8. If there are a total of 60 students, how many boys are there?

170. ## mis

Choose one of the following basic business processes: inventory management, operations and manufacturing, HR management, or accounting/financial management. Use the Internet to identify three vendors that license a product to support that process. Compare

171. ## chem

Al(CN)3.8H2O What is it named?

172. ## college physics

When the displacement of a mass on a spring is one half of the amplitude of its oscillation, what fraction of the total energy is kinetic energy?

173. ## math

Ten face-down cards spell the word "phonograph" one of Thomas Edison's most famous inventions. If you draw one what is the chance of drawing a. a vowel? b. a letter of the alphabet?

174. ## history

If you were a reform-minded person who, above all, loathed the social problems associated with alcohol, you would have been especially sympathetic to the A. evangelical efforts of Dwight L. Moody. B. Comstock Law. C. WCTU. D. Mugwumps.

175. ## math 4

jacks dad is tiling his shower.on one wall, he will use 9 rows of 14 tiles. the 4 center tiles in the top 2 rows will have a special design on them. how many of the tiles will not have a design on them?

176. ## Math/Derivative

Can someone help me figure out the answer and..possibly show the steps.. to finding the derivative of these 3 questions.. 1. f(x)=2(e^x) - x^2 2. f(x)=e^x/(e^x +1) 3. y=10^(√x)

177. ## math

Paige bought 3 pounds of almonds. She spent a total of \$18. Write an equation to find how much a pound of almonds costs.

178. ## HOW TO STARE YOUR DAY CARE FACILIY

THE LARGEST NON PROFLT ASSOCIATION IN THE UNITED STATES REPRESENTION EARLY CHILDHOOD EDUCATION IS THE

179. ## Physics

The escape velocity on Planet X is the speed the rocket needs in order to never fall back down again in a universe in which X is the only object. In order for the rocket to not fall back down, its velocity to never become negative, how far away does the

180. ## Math

Three vertices of a quadrilatral are (-1 -1), (1, 2), and (5, -1). What are the coordinate of two vertices that will form two different parallelograms?

181. ## chemistry

A closed gas cylinder contains 0.500 mole H2, 0.300 mole O2, 1.200 mole CO2 at a temperature of 25 °C and a pressure of 2.00 atm

182. ## biology

what is included in the special sense organs

183. ## Math

How do i find a polynomial whose value will be 1 if you substitute 3 over 2 for x.

184. ## Math

1. 5 - 3 4/7=1 3/7? 2. 8 - 2 3/8=5 5/8? 3. 6 1/3 - 2 2/3=3 2/3? 4. 7 1/3 - 4 1/2=2 5/6? 5. 11 2/7 - 5 2/3=5 13/21? 6. 12 1/6 - 4 3/8=7 19/24?

185. ## math

Divide the rectangle by tens and onesfor each factor 22x11

186. ## project

meaning of enviromental problem

187. ## Math

How do you solve tan theta = -3 for 0 < theta < 2pi? Answer is 1.89 and 5.03 I am unsure on how that answer was obtained

188. ## Math

write an algebraic expression then evaluate, given n=2 5 less than the quotient of -10 and a number is the answer (-10 / 2) - 5 = 0

189. ## Math

What is 10 over 26 simplified

190. ## science

If the pressure of 20.0 mL of a gas sample is increased by 4 times and the absolute temperature is doubled, what is the new volume?

191. ## math

Find the sum of the first 33 terms of the arithmetic sequence whose first term is 3 and whose 33rd term is -253

192. ## Phyiscs

True or false: When a system consists of several objects, each with their own mass and velocity, the linear momentum of the system as a whole is simply the product of the system's total mass and the velocity of the system's center of mass.

193. ## algebra

what is a domain and what is the range

194. ## Calculus 2

Solve the differential equation: dy/dx = y^2 + y

195. ## Math {ASAP}

Alex gets to work by biking to the train station, riding the train, then walking. His entire trip to work is 15 miles. If he bikes 1/3 of the way and walks 1/5 of the way, how many miles did he travel on the train?

196. ## french

How would u put the sentence. La mere de Sylvie prepare une fete pour les amies de sa fille in futur proche?

198. ## Physics

Supposed that you are on a planet, which has an average radius 1*10^9m and average density 7.4kg/m^3. Assuming that it's a perfect sphere, find the mass of the planet.

199. ## Math

Please help me, I'm having a hard time setting up this problem. George can plant a garden in 2 hours, and it takes Joyce 3 hours. They work together for 45 mins, and George leaves and Joyce finishes the job alone. How long does it take Joyce to finish

200. ## math

35÷b=5... write words to match the equation. Then model the equation.

201. ## Algebra

At its grand opening, the gutherie market distributed two different types of souvenirs. One type costs 20 centseach, and the other type costs 25 cents each. One thousand souvenirs were distributed in all. If the cost of these souvenirs was \$220, how many

202. ## Physics

"A slinky that satisfies v = sqrt(T/_mu) is stretched 12m. The mass of the slinky is 0.8kg. The tension on the slinky is 4N. What is the expected wave speed?" To get mu, I divided the mass by the length then plugged that into the equal and solved for v but

203. ## Physics

If a disk and hoop are released simutaneously 1.0m above the ground at a 30 degree incline which one will reach the bottom faster? Show mathematically.

204. ## science

what is the force between two coaxially charged ring separated with distance 'd'? radius of both ring = 'R'

205. ## math

There were 72 visitors to a website in an hour. This is 14 more visitors than in the previous hour. Write an equation to find the number of visitors to the website in the previous hour.

206. ## math

Cody has 6 times as many bottle caps in his collection as Rebecca. Cody has 36 bottle caps. Write an equation to find the number of bottle caps Rebecca has, c.

207. ## science

umm is all light energy from the sun?Explain

208. ## History

Why did some Americans advocate isolationism? They thought Europe should deal with its own problems The U.S. was still reeling from the Great Depression and couldn't afford to get involved The Monroe Doctrine forbade intervention in foreign wars They

209. ## algebra

Corey found the exact volumes of four different drinks. The results are recorded below. Gatorade..... 20.7 pepsi...... 20 3/4 Sprite...... 20.68 Powerade.... 20 11/20 A. Arrange the drinks in order from least to greatest volume B. Use what you know about

210. ## Steve

Look at my last post

I have a positive attitude, even with boring tasks, I still get the job done./or I never complain. How can I phrase this into a more professional way? Thanks.

212. ## college physics

A cruise ship of seniors is moving due west with an engine speed of 60km/hr when it encounters a current from the North at 20Km/hr. What is its relative velocity due to this current? (speed and angle) What course correction does it need to continue due

Determine if the situations represent proportional relationships. Explain. 1. Gina can buy 1 bottle of shampoo for \$2.95 or 2 bottles for \$4.50.

214. ## poem

I have this poem that I was working on and I used the word "derived" and from my understanding it means to obtain. So i was wondering if this sentence made sense with the word. "No more will I let you fill my head with stories you've in-bedded, that rest

asked by Curiousity killed the cat
215. ## Algebra

The solution set for 6x^3-11x^2-9x-1=0

216. ## Writing

What is another way I could say "home"? I am trying to use the word to describe a place where someone feels comfortable and at ease and in place but the word home sounds awkward.

217. ## Biotech

The dynamic method is used to measure kLa in a fermentor operated at 30degC. Data for dissolved-oxygen concentration as a function of time during the re-oxygenation step is given (table with time (s) and CAL (% air saturation)). The equilibrium

218. ## Nuclear Physics

Consider an alpha particle with kinetic energy E_ (alpha) which is incident on a material. Show that the distance traveled, ∆x, by the alpha particle after it has lost an amount of energy ∆E, in the material, can be found by the following equation:

219. ## Computer Science

Given three Strings, str1, str2 and str3, return the longest String. If all three Strings have the same length, return "same". There will not be a tie between two longest Strings. longestString("apple", "banana", "pear") → "banana" longestString("one",

220. ## math

(rewrite of prev question) If alpha=8degrees, beta=121degrees and c=12 then what is Y?

221. ## geography

what are the 5 largest rivers in middle and central america and their relative location.

222. ## math

Find the inflection point(s), if any, of the function. (If an answer does not exist, enter DNE.) g(x)=9x^3-4x

223. ## Evolutionary Bio

I was wondering if someone could explain to me how two haploid mating types can form a diploid. Also could someone explain the haplodiplontic life cycle? I would very much appreciate it.

224. ## English ms. sue

ms. sue i need help with this poem why it be opposite of what it mean? This was a day when nothing happened, the children went off to school without a murmur, remembering their books, lunches, gloves. All morning, the baby and I built block stacks in the

225. ## Art

what is this question asking exactly? It is: How will art evolve from today's styles. Ty.

7+l/5=-4 46-3t=-23 6+a/4=8 6h+24=0 -5b-23=9 15-3e=-6 15w-4=41 6s+3=-27 14o-17=39 n/-3-2=8

227. ## math

Carman wants to cut 3/4 inch peices from 62 long inch wire. How many 3/4 inch peices will she have?

228. ## chem

How many atoms are there in the following problems? which one has the most number of atoms? a. 5 molecuels (NH4)2S b. 9 molecules H2O2 c. 11 molecules O3

229. ## social studies

need help in filling in a diagram sea of air layers of atmospher

230. ## math

Mary bought some used CDs for \$5 each. She spent a total of \$30.

231. ## MATH

FAITH HAS A TRIANGULAR SANDWICH AND ONE SIDE THAT IS 4IN LONG AND ANOTHER SIDE IS 3 IN WHAT IS THE RANGE OF THE THIRD SIDE

232. ## Math

Rafik counted the amount of money in his coin bank and wrote down the total. The amount was more than \$12 but less than \$13. The next day, he added a penny to the bank. To show the new total, he had to change exactly two digits in the old total. What are

233. ## English

Her responsibilities include assisting other tasks as required / assisting with other tasks as required Which one is correct?

234. ## chem

Why is ther no such thing as NaCl molecule? pllllsss neeed heeelp thank you

235. ## Math

Are all statements that are true. (a) log(A)/log(B)=In(A)/In(B) (b) In log[b](N), the exponent is N. (c)If 2log[3](81)=8, then log[3](6.561)=8 (d)log[b](N) negative when N is negative. (e)In(x/2)=In(x)/2

236. ## Math

Are all statements that are true. (a) log(A)/log(B)=In(A)/In(B) (b) In log[b](N), the exponent is N. (c)If 2log[3](81)=8, then log[3](6.561)=8 (d)log[b](N) negative when N is negative. (e)In(x/2)=In(x)/2

237. ## math

we have to find the coordinate point

238. ## government

How many years the member of australian cabinet hold their position? After 3 years there will be a election at house of representative does it also include the changes of the cabinet member? but how about the election of senate member? im sorry i really

239. ## chemistry

what mass of silver bromide will form when 25.00 mL of a 0.0675 M MgBr2 solution is combined with mL of 0.100 M AgNO3?

240. ## Nuclear Physics

Consider an alpha particle with kinetic energy E_ (alpha) which is incident on a material. Show that the distance traveled, ∆x, by the alpha particle after it has lost an amount of energy ∆E, in the material, can be found by the following equation:

241. ## Physics

At planet X, there is another planet called Y about 34 million light years away. The radius of planet X is 1 * 10^9 m. How far away from the center of the planet X is the planet Y in meters?

242. ## math

If a=8degrees, b=121degrees and c=12 units, then what is Y?

243. ## math

If alpha= 33.5degrees, a=7.4, and b=10.6, then what is beta to the nearest tenth of a degree.

244. ## math

penny put 5 dounts in one pack how many packs will she have in 2587

245. ## Math

What is 35 13/18 - 24 7/18 (by the way 13/18 and 7/18 are fractions)? Am i right, i think it is 11 6/18.

246. ## Physics

The block pictured below is sliding upward on the incline with theta=25. the coefficient of friction between the block and the incline is 0.15. of the block has a speed of 5 m/s at the bottom of the incline, how far upward will it slide before it stops?

247. ## science

presto abracadabra, first one then another. who am i?

Tiffanny has 100 coins in dimes and nickels. She has a total of \$5.80. How many of each coin does she have. Write the equations then solve.

249. ## math

What is the selling price of a Television marked \$600.00 if two discounts of 20 percent and 5 percent are given? (First figure 80% of 600. Then 95% of the result.) (Am I on the right track?) 0.80*600= \$480.00 then 0.95*480.=\$456. Marked price \$600.00 fisrt

250. ## Grammar

Recreational boaters in Florida believe the manatee population has increased; however, enough environmentalists disagree. Is the punctuation correct in the above sentence?

251. ## physics

Child X throws 0.5 kg of Play Dough at Child Y at 0.40 m/s at the same time that Child Y throws 0.8 kg of Play Dough at Child X at 0.20 m/s. The two masses of Play Dough collide and stick. What is the resulting speed and direction of the Play Dough? What

252. ## calc

how would i find the derivative of these? f(x)=ln((√x)+1) and f(x)=ln(x+1/x-1) thank u!!

253. ## Math

How many feet are inches?

254. ## Math

Use the definition of logarithm to simplify each expression. (a) log6b(6b) (b)log8b((8b)^6) (c)log11b((11b)^-9)

255. ## finance

If the principal P=800, the interest I= 384, and time t = 6 years, find the following: What is the rate? What is the future value?

256. ## biology

what are the different parts that comprise the musculoskeletal system

257. ## Factoring

2x^2+3x-7 i cant find a zero to use synthetic division with this. They don't work. What am I doing wrong? Thanks!

258. ## Calulus 2

Solve the differential equation: dy/dx = y^2 + y

259. ## Math

How to convert a whole number into a mixed number?

260. ## social studies

what is climate?

261. ## algebra

3 1 1 -c + -c = - 4 2 7

262. ## math

explain how to do arrays and an expanded algorithm

I need help coming up with a title for a review on the documentary Wordplay. I wrote about how the documentary give a lot of great information, but lacks a compelling plot throughout. I really wanted to make the title interesting by adding actual wordplay

264. ## Website Design

I helping my friend to make personal website of like 10 pages. do anyone know any url of websites that have good design? my friend use it to get better idea.

265. ## Math

[2a + 3b] [2a - 3b. May you please explain the steps if you can.

266. ## Math

Find the number of decibels for the power of the sound. Round to the nearest decibel. A rock concert, 5.35 10-6 watts/cm2 D =______ dB

267. ## algebra

square root ( 2x+1) +x=7

268. ## college physics

A ball is thrown from a 20.0m high building and hits the ground 6.0m from the building. With what horizontal velocity was it thrown?

269. ## geometry

Lp=2x om=4x+30 and pm=50

270. ## math

Your store’s average basket (transaction) size for the month of March was \$11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of \$9.00 for the month of March

271. ## Math

Is this statement congruent and why? Is 83 to 144 power = 15 to the 144 power (mod 17)

272. ## math

is 0.14 equal to 0.104