# Questions Asked onNovember 14, 2013

1. ## Science

Darwin assumed that evolutionary change was always slow and gradual. What was the first evidence that suggested evolutionary change might happen fast sometimes? a. homologous structures b. fossils c. reproduction rates d. DNA sequences Which of the

2. ## Physics

A 1000N crate is being pushed across a level floor at a constant speed by a force F of 300N at an angle of 20.0 degrees. (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 300-N force is instead pulling the block at

3. ## Math

1. What are the steps to solve this problem? 0.000027 ÷ 0.000009 Requirements: • Explain how to use scientific notation to solve the problem. • Describe how to divide numbers written in scientific notation. • Give you final answer in simplest form.

4. ## Intro to computers

A user calls your help desk to report that the files on her USB stick do not have any permissions associated with them and therefore aren't secure. Why is this? A The USB stick is formatted with FAT 32 b The USB stick is formatted with FAT 64 c The USB

5. ## physics

Two forces act on an object. The first force has a magnitude of 17.0 N and is oriented 68.0° counter-clockwise from the x axis, while the 2nd force has x- and y-components (-19.0 N, 16.5 N). Express the magnitude and direction of the net force.

6. ## Physics

To better understand the concept of static equilibrium a laboratory procedure asks the student to make a calculation before performing the experiment. The apparatus consists of a round level table in the center of which is a massless ring held in place

7. ## statistics

David wants to rent an unfurnished apartment for next semester. He took a random sample of 9 apartments adversised in the local Halifax paper, and recorded the rental rates. The rents (in \$ per month) were: 500 650 600 505 450 550 515 495 640 a) Find a 90%

8. ## DE Science

I am thinking A. A scientist claims plants and animals that exhibit reproductive cycles based on the changing seasons are highly affected by climate change. What is the correct justification of the scientist's claims? A) Climate change can cause a timing

9. ## math

Lexi and Maria had \$250 altogether. After Lexi spent 2 over 5 of her money and Maria spent \$40, they had the same amount of money left. How much money did Lexi have in the beginning?

10. ## Math

Suzanne bought 50 apples at the apple orchard.she bought 4 times as many red apples as green apples.how many more red apples than green apples did Suzanne buy?

11. ## Earth space science

I need help with this. the map doesnt show anything and idk how to post the map on here... Match the cities A,B,C, and D with the weather description of the surface model (To the right of each letter) a. city A b. City B c. City C d. City D A. Pressure of

Use the proportion to find the missing length in the following similar figures. x/2 9/4 4.5 18 (My Answer) 8 2.25

13. ## Physics Classical Mechanics

A Yo-Yo of mass m has an axle of radius b and a spool of radius R . Its moment of inertia about the center can be taken to be I=(1/2)mR2 and the thickness of the string can be neglected. The Yo-Yo is released from rest. You will need to assume that the

14. ## physics

The position of a particle moving along the x axis is given by x=3.0t^2 - 1.0t^3 , where x is in meters and t in seconds. What is the position of the particle when it achieves its maximum speed in the positive x direction

15. ## Statistics

In the following two questions, identify which choices would be considered inferential statistics. 1. of 500 randomly selected people in new york city, 210 people had O+ blood. a) "42 percent of the people in NYC have O+ blood" Is the statement descriptive

16. ## physics

You walk 51 m to the north, then turn 30° to your right and walk another 45 m. How far are you from where you originally started?

17. ## Algebra help PLEASE? first and ONLY question

Which of the images above represents a proof pf the Pythagorean Theorem? Explain your choice, and then explain how the figure proves the PT.

18. ## math

A circular swimming pool has radius of 15 feet. The family that owns the pool wants to erect a circular fence that is 5 feet away from the pool. Which is the closest to the circumference of the fence they will need? A. 94.2 ft B. 125.6 ft C. 157 ft D.

19. ## statistics

In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. More than a decade ago, high levels of lead in the blood put 89% of children

20. ## Functions

Solve sin^2x - 2sinx - 3 = 0 on the interval xE [0, 2pie]

21. ## Solar Energy

a) Consider a lead acid battery with 100Ah capacity and a rated voltage of 24V. What is the total capacity of energy in Watt-hours that can be stored in the battery? b) Assume that the battery is completely empty. The battery is now charged at a C-rate of

1. Each time a touchdown is scored in a football game, 6 points are added to the score of the scoring team. A team already has 12 points. What rule represents the number of points as an arithmetic sequence when n is the number of touchdowns scored? A(n) =

23. ## Physics

A 55.0kg cheerleader uses an oil-filled hydraulic lift to hold four 130kg football players at a height of 1.20m. If her piston is 19.0cm in diameter, what is the diameter of the football players' piston?

24. ## chemistry

Draw the compound that would produce 4-ethyl-3-hexanol in the presence of a nickel catalyst and hydrogen.Please help!!!!!

25. ## Music

What could be done to minimize the commercialism in today’s music scene?

26. ## Solar Energy

Consider a PV module with the following parameters as measured at STC (Standard Testing Conditions): Voc = 55 V; Isc = 5 A; Impp = 4.7 A; Fill Factor = FF = 75% ; Efficiency = 19.75%. Suppose that under normal operation at STC conditions, the module is not

27. ## interest math

doris browning deposited \$8000 into a savings account paying 5.25% interest. how long will it take for her investment to grow to \$10,100. The answer i got was 4yr 11mo 30 days but that is wrong someone please help

28. ## Chemistry

Your space ship has docked at a space station above Mars. The temperature inside the space station is 24oC at a pressure of 745mmHg. A balloon with a volume of 425mL drifts into the airlock where the temperature is -95oC and the pressure is 0.115 atm. What

29. ## physics

Starting from rest, a(n)9 kg block slides 9.7 m down a frictionless ramp (inclined at 30◦ from the ﬂoor) to the bottom. The block then slides an additional 23.5 m along the ﬂoor before coming to stop. The acceleration of gravity is 9.8 m/s 2.Find the

30. ## Solar Energy

Family Cartman has a small house in the country side which is not connected to the grid. The place enjoys 4 equivalent sun hours. Therefore, Mr Cartman has decided to install an off-grid PV system in the house to supply the required electicity in the

31. ## physics

A charged particle of mass 8.39×10−4 kg starts from rest and accelerates through a potential difference of +25,000 V to reach a speed of 1170 m/s. What is the charge on this particle?

32. ## interest math

On April 12, Michelle borrowed \$5,000 from her credit union at 9% for 80 days. The credit union uses the ordinary interest method. a. What is the amount of interest on the loan? \$90 b. What is the maturity value of the loan?\$5090 c. What is the maturity

33. ## Solar Energy

Consider a 250 Wp rated crystalline silicon PV module. It results from a manufacturing process that consumes 8kWh/Wp of PV module. a) What is the total energy consumed (in kWh) during the production of the module? Assume that the PV module is used in a

34. ## Science! Biology 1

Question: Which of following best describes the free-energy requirements of an organism? Answer Choices: During times of hibernation large amounts of free energy are required. Free-energy demand is consistent for all heterotrophs. The organism requires

35. ## Physics

Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 93.3 N, Jill pulls with 73.1 N in the northeast direction, and Jane pulls to the southeast with 181 N. (Since the donkey is involved with such uncoordinated people,

36. ## Physics

Police find skid marks 180 meters long on a highway where a car made an emergency stop. Assuming that the deceleration was a = 10 m/s¶ (about the maximum for dry pavement), how fast was the car traveling before the brakes were applied?

37. ## math

round 749 to the nearest hundred

38. ## accounting

Pattillo Industries makes a product that sells for \$25 a unit. The product has a \$5 per unit variable cost and total fixed costs of \$9,000. At budgeted sales of 1,000 units, the margin of safety percentage is 45%, 55%, 64%, none of these

39. ## home work

what does mrs wishy - washy need to give the animals a bath ?

40. ## pre-algebra

1.write the fraction 5/6 as a percent. Round to the nearest hundredth of a percent where necessary. 33.33% 66.67% 83.33% 1.20% 2. Chris and five of his friends go out to dinner. The total bill comes to \$124.29. they decide to leave a 20% tip. Each person

41. ## math

the amount of revenue brought in by states from motor vheicle licenses increased at a relatively constant rate of 499.79 million dollars per year from 1990 to 2000. In 2000, the states brought in 15099 million dollars in revenue from motor vehicle. a: what

42. ## PHYSICS

To monitor the breathing of a hospital patient, a thin belt is girded around the patient's chest. The belt is a 200-turn coil. When the patient inhales, the area encircled by the coil increases by 45.0 cm2. The magnitude of the Earth's magnetic field is

43. ## Solar Energy

Which of the following variables does NOT affect the economic payback period of a PV system? 1)Insolation received by the PV system 2)Subsidies and feed-in tariffs 3)Cost of electricity 4)Overall lifetime of the PV system

44. ## chemistry

1. A website promoting the use of alternative energy vehicles and hybrid technologies claims that, \"A typical automobile in the USA uses about 500 gallons of gasoline every year, producing about 5 tons of carbon dioxide.\" To determine the truth of this

45. ## Chemistry

Benzene (C6H6) and toluene (C5H5CH3) form nearly ideal solutions. At 20°C the vapor pressure of benzene is 74.7 Torr and that of toluene is 22.3 Torr. a) Find the equilibrium partial pressures above a solution of 100.0 g benzene and 100.0 g toluene. b)

46. ## English

Is this sentence correct? My family (my mom, dad, and I) was going on a trip. I think it is correct, because family is singular?

47. ## Solar Energy

Consider a crystalline PV module with the following output parameters mentioned at STC (Standard Testing Condition) conditions by the manufacturer. Pmax = 250W Voc = 50V Isc = 6A NOCT = 40°C Temperature coefficient of power = -1W/°C a) If the ambient

48. ## Physics Classical Mechanics

A hollow cylinder of outer radius R and mass M with moment of inertia about the center of mass Icm=MR2 starts from rest and moves down an incline tilted at an angle θ from the horizontal. The center of mass of the cylinder has dropped a vertical distance

49. ## Chemistry

A solution is made by adding 0.100 mole of ethyl ether to 0.500 mole of ethyl alcohol. If the vapor pressures of ethyl ether and ethyl alcohol at 20 oC are 375 torr and 20.0 torr, respectively, the vapor pressure of the solution at 20 oC (assuming ideal

50. ## math

There are x students in Mrs. Schwartz's third-grade class. One less than half the students have blue eyes. Six fewer children have green eyes than have blue eyes. The rest of the students have brown eyes. How many students have brown eyes? a. 7 b. 8 c.

51. ## Chemistry

CONTINUE>>>>>>>>>>> The enthalpy changes for two different hydrogenation reactions of C2H2 are: C2H2+H2---->C2H4 Delta H 1 (there is a degree sign....standard enthalpy of formation??) *****WAIT A SECOND, IF I USE THE HEAT OF FORMATION VALUES TO CALCULATE

52. ## Math-Probability

Suppose an urn contains 8 red,5 white and 7 blue marbles.If 3 marbles are drawn at random from the urn with replacement,what is the probability that three marbles are the same color?Give answer in a reduced fraction.

53. ## Physics

After a completely inelastic collision, two objects of the same mass and same initial speed are found to move away together at 1/5 their initial speed. Find the angle between the initial velocities of the objects.

54. ## CHEMISTRY

I know I posted this question before, but can you clarify it?? MY QUESTION IS AFTER YOU SWITCHED THE DELTA H1 THE CHANGE IN THE ENTHALPY IS NEGATIVE.... BUT THAT DOES NOT MAKE SENSE BECAUSE THE CHANGE IN ENTHALPY OF THE ORIGINAL DELTA H1 IS

55. ## Math-Probability

Please explain how to get the answer.I have now idea. 1.If you roll two fair dice,one red and one green,what is the probability of getting a 2 on the red die and a 3 on the green die? Give answer in a reduced fraction. 2.If you roll two fair dice,one red

56. ## math

A student downloaded seven music files to a portable MP3 player. In how many different orders can the songs be played?

57. ## Physics

A car traveling at a velocity of 24 m/s is accelerated uniformly at a rate of 2 m/s¶ for 8 seconds. What is the final velocity of the car?

58. ## Chemistry

16.3L N2 at 25 degrees Celsius and 125 kPa and 41.9L O2 at 25 degrees Celsius and 125 kPa were transferred to a tank with a volume of 5.25L. What is the total pressure at 55 degrees Celsius?

59. ## Trigonometry - Identities

If tan 2x = - 24/7, where 90 degrees < x < 180 degrees, then find the value of sin x+ cos x. I applied various identities and tried manipulating the problem to get sin x + cos x = sin(arctan(-24/7)/2) + cos(arctan(-24/7)/2) I also played around with the

60. ## Physics

A 14.9-kg object hangs in equilibrium at the end of a rope (taken as massless) while a wind pushes the object with a 67.7-N horizontal force. Find the tension in the rope and the rope\'s angle from the vertical. The acceleration due to gravity is 9.81

61. ## math

The official ratio of width to length for the U.S. flag is 10 to 19. If a flag is 38 inches wide, how long should it be?

62. ## networking

A firm is assigned the network part 128.171 It selects a 10-bit subnet part a) draw the bits for the first four octets of the IP address of the first host on the first subnet. b) convert this answer to dotted decimal notation. c) Draw the bits for the

63. ## Chemistry

I know I posted this question before, but can you clarify it?? MY QUESTION IS AFTER YOU SWITCHED THE DELTA H1 THE CHANGE IN THE ENTHALPY IS NEGATIVE.... BUT THAT DOES NOT MAKE SENSE BECAUSE THE CHANGE IN ENTHALPY OF THE ORIGINAL DELTA H1 IS

64. ## A/P Biology

The Echinopsis mamillosa is a flowering cactus native to Bolivia. A high-rise building is built near a particular Echinopsis, filtering the amount of direct sunlight it receives. Which of the following processes is negatively affected first by the

65. ## math

the length of the hypotenuse of a right triangle is 15 ft. the length of one legs is 9 ft. find the length of the other leg. a) 6 ft b) 21 ft c) 12 ft d) 18 ft

66. ## Math

There are some caps in a box. 1/6 are red, 1/3 are blue, and 3/7 of the remainder are green. If there are 27 green caps, how many caps are there all together?

67. ## physics

What net torque is required to give a uniform 12-kg solid ball with a radius of 0.22m an angular acceleration of 12rad/s2 ?

68. ## math

A student downloaded seven music files to a portable MP3 player. In how many different orders can the songs be played?

69. ## Statistics

In the following two questions, identify which choices would be considered inferential statistics and which would be considered inferential statistics. 1. of 500 randomly selected people in new york city, 210 people had O+ blood. a) "42 percent of the

70. ## KINDERGARTEN

HOMEWORK HAVE CHILDREN WRITE A ROW OF EACH LETTER AND THEN WRITE THE WORDS

71. ## Language Arts

8th grade language arts help. Please I need help with this I don't understand these questions. Can you please explain these concepts to me and let me know if my answer is correct? Identify the italicized word or words in each sentence. The ITALICIZED words

72. ## Chemistry

What fraction of glutamate is charged in milk

73. ## Spanish

Are my answers correct? If I am wrong please don't give me the answer. Just ask me to try again. My choice marked by *** 1. Yo ______ en Chile y él ______ en Argentina. ***estoy . . . está estamos . . . estoy está . . . está estoy . . . están 2.

74. ## Math

Your favorite chocolate chip cookie recipe makes 4 dozen cookies. Among the other ingredients, the recipe calls for > 1 cup of butter > 2 tsp vanilla extract > 3 cups of flour > 1/2 tsp salt You are asked to make 6 dozen cookies for a party. How much

75. ## physics

A metal wire has a resistance of 8 ohm at a temperature of 20 degree celcius . If the same wire has a resistance of 8.40 ohm at 70 degree celcius , what is the resistance of this wire in ohms when its temperature is -10 degree celcius ?

76. ## Chemisty

Consider a 1.50 L aqueous solution of 3.75 M NH3, where 17.5 g of NH4Cl are dissolved. To this solution, 5.00 g of MgCl2 are added. a. What is [OH-] before MgCl2 is added? b. Will a precipitate form? c. What is [Mg2+] after equilibrium is established? I

77. ## English

Help please What change if any? Michael phelps is one of the best know athletes who endorse products in television commercials Is it c? a sentence is correct b change endorse to endorsing c change endorse to endorses

78. ## Physics Help!! I'm so confused!!!

A fire hose sprays 450 liters of water a minute onto a fire with a velocity of 17.0 m/s. Water has a density of 1 kg/liter. What is the average force acting on the fireman holding the hose due to the water? PLEASE EXPLAIN.

79. ## Physics

A liquid of density 1.23 × 103 kg/m3 flows steadily through a pipe of varying diameter and height. At location 1 along the pipe the flow speed is 9.23 m/s and the pipe diameter is 1.07 × 101 cm. At location 2 the pipe diameter is 1.71 × 101 cm. At

80. ## math

Scott, Mike, and Holly shared an order of French fries. Scott ate x fries. Mike ate one more than twice the amount of fries that Scott ate. Holly ate 5 fewer fries than Scott did. If there were 6 fries left, how many fries were in the order? a. x-5 b. x c.

81. ## Physics Classical Mechanics

A satellite of mass m is orbiting the earth, mass M , in a circular orbit of radius ra . Unfortunately a piece of space debris left by a passing rocket lies directly in the satellite's path. The piece of debris has the same mass m as the satellite. The

82. ## Physics

A billiard ball with mass 0.210 kg has a speed of 5.2 m/s and collides completely inelastically with another ball of the same size and mass. I understood the first part of the problem I just need help solving the second part. Another billiard ball

83. ## PHYSICS HELP

A satellite of mass m is orbiting the earth, mass M , in a circular orbit of radius ra . Unfortunately a piece of space debris left by a passing rocket lies directly in the satellite's path. The piece of debris has the same mass m as the satellite. The

84. ## math

What is the percent of each number? 1. 3% of 45 2. 44% of 125 3. 95% of 64 4. 2% of 15.4 Show your work

85. ## physics

A 2.20kg mass is attached to a spring and placed on a horizontal, smooth surface. A horizontal force of 21.3N is required to hold the mass at rest when it is pulled 0.190m from its equilibrium position (the origin of the x axis). The mass is now released

86. ## Math

To get a job as a receptionist you have to be able to type 60 words per minute. Trevor wanted to work as a receptionist for the summer so he was working on building up his typing speed. He made the following table to track his progress. Week 0 20 words/min

87. ## physics

Two spherical conducting wires A and B are connected to the same potential difference. Wire A is three times as long as wire B, with a radius double that of wire B and resistivity doubles that of wire B. What is the ratio power delivered to wire A to the

88. ## Math

The perimeter of a triangle Abc is 28 inches . Side Ab is 6 inches long and side BC is 8 inches long. find the length of side AC. Thank you.

89. ## Math

1. You need \$200,000 to retire in 10 years. You can invest monthly amounts at 5% APR at work. How much should you contribute each month? 2. A friend creates an IRA with an APR of 6.25%. She starts at age 25 and deposits \$50 per month. a) How much will her

90. ## Government

Which is NOT a factor that reinforces America's two-party system? 1.)Broad ideological consensus limits the appeal of radical parties. 2.)The winner-take-all system makes it harder for third parties to gain popularity. 3.)The two-party system was preferred

91. ## Math Statistics

A company sells cans of chicken soup that that are advertised to contain 20 oz. However due to variations in the manufacturing process, the volume of soup in the cans is, in fact, Normally distributed with a mean of 20.1 oz and a standard deviation of 0.4

92. ## math

Six people enter a dart throwing tournament in which each person must play each of the others in the tournament exactly once. Determine the total number of games that will be played.

93. ## Statistics

Which of the following graphs would be best to use to display the number of discharges by medical service for the past year? Line or bar graph?

94. ## CHEMISTRY

Post a New Question Current Questions Homework Help: Chemistry Posted by Anonymous on Thursday, November 14, 2013 at 8:45pm. CONTINUE>>>>>>>>>>> The enthalpy changes for two different hydrogenation reactions of C2H2 are: C2H2+H2---->C2H4 Delta H 1 (there

95. ## math

Which best describes a polynomial? A) a decimal that is non-terminating or non-repeating B) a close-planed figure formed by three or more line segments C)a number greater than one that has exactly two different factors D) an algebraic expression containing

96. ## math

The length of a rectangle is 2 inches longer than the width. The area of the rectangle is 56 in^2. Find the dimensions. Also: The length of a rectangle is 3 ft more than the width. The area of the rectangle is 28 ft^2. Find the dimensions.

97. ## Math

To get a job as a receptionist you have to be able to type 60 words per minute. Trevor wanted to work as a receptionist for the summer so he was working on building up his typing speed. He made the following table to track his progress. Week 0 20 words/min

98. ## Math

A projectile is launched from a cannon that sits 4 feet off the ground at an initial velocity of 120 feet/sec. Find the impact velocity.

99. ## Math

Robert ate 3 pieces of a pizza and then felt that he should pay 1/4 of the cost because that's the fraction he ate. How many pieces was the pizza cut into ?

100. ## chemistry

which of the following alkane names is correct? a)2-methyl-3-propylhexane b)1-methylnonane c)1,2-dimethylhexane d)4,5-dimethylpentane e)all of the above names are correct

101. ## math

The distance d, in miles, a small plane is from its final destination is given by d(t)=250-100t, where t is the time, in hours, remaining for the flight. Find and discuss the meaning of the intercepts of the graph of the function.

102. ## Physics Classical Mechanics`

A wheel in the shape of a uniform disk of radius R and mass mp is mounted on a frictionless horizontal axis. The wheel has moment of inertia about the center of mass Icm=(1/2)mpR2 . A massless cord is wrapped around the wheel and one end of the cord is

103. ## Physics

A stone is aimed at a cliff of height h with an initial speed of v = 56.0 m/s directed 65.0° above the horizontal, as shown in the Figure below by the arrow. The stone strikes at A, 9.20 s after launching. What is the height of the cliff?

104. ## ASHFORD

The idea of Gardener’s theory of multiple intelligences suggests that there are specific intelligences that are inherent in all individuals. The author, however, suggests that a preferred style may not necessarily be the best way an individual learns.

105. ## Physics Classical Mechanics

A pulley of mass mp , radius R , and moment of inertia about its center of mass Ic , is attached to the edge of a table. An inextensible string of negligible mass is wrapped around the pulley and attached on one end to block 1 that hangs over the edge of

106. ## physics

A 1700 kg car moving south at 19.5 m/s collides with a 2050 kg car moving north. The cars stick together and move as a unit after the collision at a velocity of 5.16 m/s to the north. Find the velocity of the 2050 kg car before the collision. m/s to the

107. ## Probability

help solving a probability problem: probability that a person taking a survey is male "given" that he preferred a European automobile if 112 males prefer european autos out of 188, and 216 of a total of 452 individuals were surveyed were male. Additional

108. ## math

the annual household cost of telephone service in the US increased at a relatively constant rate of \$27.80 per year from 1981 to 2001. IN 2001 the annual household cost of telephone service was \$914. a:What was the annual household cost of telephone

109. ## Algebra 1 ( Inequalities and their Graphs)

Come up with 2 real world examples of situations that use function rules. Think about your daily life, your home, or the community you live in for ideas. . Can i get an example because i don't know how to do this..

110. ## Algebra

Of two-car families in a small city, 88% remain two-car families in the following year and 12% become one-car families in the following year. Of one-car families, 72% remain one-car families and 28% become two-car families. Suppose these trends continue

111. ## statistics

I have to find mean, median and mode did I do this right? 21,21,22,22,22,26,34

112. ## Statistics

How do the 3rd grade boys’ weight in Principal Ben’s school compare to the national average (mean weight = 90, sd =15)? Provide the IV, DV, and best method of analysis.

113. ## math

A relay with n laps was run by 4 people. The first runner ran half the laps. The second runner ran half the amount of laps the first runner ran. The third runner ran half the amount of laps the second runner ran. The remaining laps were completed by the

114. ## Math

Perform the indicated operation and simplify. 1. 1/4 + 1/3 = 2/3 2. 4/7 - 5/6 = 1/6 3. 3/5 * -4/7 = -12/35 4. 10/11 divided by 2/3 = 15/11

laura is 2 inches taller than rebecca. maxine is 4 inches taller than rebecca. the total height for the three girls is 150 inches. how tall is rebecca

116. ## Pipeline design

Sketch a preliminary layout for the following heat exchanger systems. On the layout sketch indicate pipe work manifolds, access platforms, access for construction, operations and maintenance. In your answer we are looking for thought into the relative

117. ## physics

A 160 kg child jumps at 7 m/s into a boat floating a rest. After the jump, they both move at 3 m/s forward. Find the boat's mass.

Let's begin with a rather straightforward lottery in which players select four digits. The winning number is commonly selected in the following fashion: 10 Ping Pong balls (each with a digit 0 through 9 written on it) are placed in a hopper. One Ping Pong

119. ## biology

can you give examples of analogous structures????? please i have tried about 4 differet websites and no one has helped

120. ## Physics

The launching speed of a certain projectile is 9.8 times the speed it has at its maximum height. Calculate the elevation angle at launching.

122. ## math

the annual household cost of telephone service in the US increased at a relatively constant rate of \$27.80 per year from 1981 to 2001. IN 2001 the annual household cost of telephone service was \$914. a:What was the annual household cost of telephone

123. ## Ap bio

When an amount of heat is transferred at a steady temperature, what happens to the entropy of the system gaining the heat? a.It decreases. b.It increases. c.It is lost to its surroundings. >>> d.It is unchanged.

solve the equation. check the solution 1. a divided by 7= 20 2. d divided by 2=8 3. c divided by 3=15

125. ## math

31divided by 5,087

126. ## statistics

Calculate and interpret a 95% confidence interval for the mean bp in the pop of ALL anabolic-steroid using athletes: random sample of 9 athletes resulting in a sd of 207.8, and 109 respectively. When random sample is less than 30, don't I find a t score?

127. ## Physics

The launching speed of a certain projectile is 9.8 times the speed it has at its maximum height. Calculate the elevation angle at launching.

128. ## math

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

129. ## Math

Is 10.512 * 10^3 written in proper scientific notation? If not rewrite the number in proper scientific notation.

130. ## Physics

1. A gold atom has a mass of 3.287 • 10-25 kg and is at rest. It emits an alpha particle that has a mass of 6.646 • 10-27 kg. In this process, the gold atom is transformed into an iridium isotope. The alpha particle has a speed of 3.40 • 106 m/s. A.

131. ## Math

I have \$48. I spend \$3 each day. I need to write an equation that represents the amount of money I have left in terms of the number of days since I started spending the money, and tell what each variable in the question represents.

132. ## Calculus Inegral

integral of x/lnx

133. ## confidentiality in allied health

when must a notice to use and disclosure be provided a.within 10 days after treatment b.before treatment is terminated c.upon request of the patient d.no later than the date of the first service delivery my answer is d

134. ## Algebra 2 Trig - Probability Question

help solving a probability problem: probability that a person taking a survey is male "given" that he preferred a European automobile if 112 males prefer european autos out of 188, and 216 of a total of 452 individuals were surveyed were male. Additional

135. ## Pre-Calculus

Find the slope of the tangent line to the curve √(1x+2y) + √(1xy) = 8.24 at the point (2,8)? I know you have to use implicit differentiation, but the radicals keep making me mess up algebraically. Is the changing the radicals to exponents the fastest

136. ## Physics Classical Mechanics

A gyroscope consists of a uniform disc of mass radius M= 2 kg and radius R= 0.2 m . The disc spins with an angular speed ω= 300 rad⋅s-1 as shown in the figure below. The gyroscope precesses, with its axle at an angle 30∘ below the horizontal (see

137. ## Chemistry, Science

How many Cl- ions are present in 2.35 mol of CaCl2 and please show steps ! Need help so I can study for a huge test tomorrow

138. ## Physics

The launching speed of a certain projectile is 9.8 times the speed it has at its maximum height. Calculate the elevation angle at launching.

139. ## Stats

According to a Louis Harris poll, 63% of male drivers always use seat belts. A recent sample of 900 male drivers showed that 60% of them always use seat belts. Test at the 0.01 lovel of significance if the proportion of male drivers who always use seat

140. ## physics

A metal wire has a resistance of 8 ohm at a temperature of 20 degree celcius . If the same wire has a resistance of 8.40 ohm at 70 degree celcius , what is the resistance of this wire in ohms when its temperature is -10 degree celcius ?

141. ## MATH

Calculate the maturity value of a simple interest, eight-month loan of \$15,000 if the interest rate is 4.5%.

142. ## Algebra 1 (Reiny or Kuai)

Can a linear equation represent a function if the straight line does not cross any lines of the graph?

143. ## accounting

How would you summarize Apple’s cash flow position and what does this statement tell you about where the money is coming from and where it’s going? What should Apple do to improve its cash position and why?

144. ## math

Which one(s) of these twelve brands would be considered outliers, if there are indeed any at all? How extreme does something have to be considered an outlier? Brand,Strawberry,Vanilla 1,140,140 2,210,230 3,200,170 4,200,180 5,110,100 6,180,180 7,210,150

145. ## physics

With what velocity should the ball be kicked (magnitude in m/s and direction) for an ideal kick off? 4.8 second hang time and horizontal displacement of 60 yards and how high in meters should the ball be expected to go? Thank you

146. ## math

an average sized female spider and a large spider can lay a total of 2100 eggs at one time . The large spider lays 20 times the number of eggs as the average spider. How many eggs does the average spzied spider lay?

147. ## math

The atmospheric pressure P in pounds per square inch (psi) is given by P = 14.7 e^−0.21 a where a is the altitude above sea level (in miles). If a city has an atmospheric pressure of 11.35 psi, what is its altitude?

148. ## Computer Programming

Implement the classic “Rock, Paper, and Scissors game” using following methods: Headers of the methods are shown public static void printMenu( ) It is a void method –It uses no parameters --It is called to display choices and code (1 for Rock, 2 for

149. ## Math

You pull into a gas station where the sign says the gas costs \$3.679. To fill up your tank you need 20 1/2 gallons of gas. You plan to use your credit card to pay. Rounded to the nearest cent, what will the charge be on your credit card? \$75

150. ## statistics

A teacher finds that the test scores of a group of 40 students have a mean of 75 and a standard deviation of 10. If Anne has a test score of 88, what is Anne’s z-score?

151. ## statistics

Find the mean, the median, and the mode for the following data. 21 21 22 22 22 26 34 Mean 335.1 rounded to 335, median 22, mode is 22

152. ## Math

A student downloaded seven music files to a portable MP3 player. In how many different orders can the songs be played?

153. ## Law

1. Of the following scenarios, which one would be classified as robbery? A. A suspect enters a bank and hands the teller a threatening note demanding money. The teller gives the suspect \$2,000, and the suspect walks from the bank. B. A suspect enters a

154. ## staistics, is it right?

Find the mean, the median, and the mode for the following data. 21 21 22 22 22 26 34 Mean 335.1 rounded to 335, median 22, mode is 22 could someone tell me if I got this right?

155. ## rates

a homing pigeon flies 180km in 3hours . at this average , how far could the pigeon travel in 4 hour

156. ## Social Studies

WWI: Why would the Canadiens( Francophone) and the Maritime provinces be less interested in going to war in Europe than those Canadians of British heritage?

157. ## rates

a bicyclist travels for 2h at an average speed of 12km/h. how far does the bicyclist travel ? at this speed how long will it take the bicyclist to at 54km?

158. ## cinfidentiality in allied health

the technology that identifies people through bodily characteristics is known as a.genetic testing b.psychometrics latent identification biometrics my answer is d

159. ## american history

The federalist papers______________ A. Were written to persuade the public to support ratification of the Constitution. B. were an attack against the Framers and supported continuation of the Articles of Confederation. C. were written by three of the

160. ## Finite

An urn contains 5 white balls and 4 black balls. If 3 balls are randomly selected ( at once, without replacement ), what is the probability that at least 1 ball is black? Give answer as a decimal number with three correct decimal places.

161. ## criminal justice

Who would be the stakeholders of human trafficking?

162. ## physics

a car moving at 22.0 m/s strikes a large tree and comes to rest in a distance of 1.55m. assuming negative acceleration. what is the time needed to stop the car? what is the average acceleration

163. ## math

What is the future value of \$5000 earning 6% interest, compounded monthly, for 5 years?

164. ## Integral Help

I need to find the integral of (sin x)/ cos^3 x I let u= cos x, then got -du= sin x (Is this right correct?) I then rewrote the integral as the integral of -du/ u^3 and then rewrote that as the integral of - du(u^-3). For this part, I wasn't sure how to

165. ## English

Which word fits? Have officials chose/chosen the city for the next Olympics? The Greek gods and goddesses drank/drunk nectar.

166. ## chemistry

What is formed when zinc carbonate reacts with concentrated hydrochloric acid?

167. ## math

The parking cost at a garage is c=1.3(h-1) , where h is the number of hours you park and C is the cost in dollars. When is the cost of parking \$10

168. ## Government

name three roles that interest groups play in American electionsl

169. ## biology

Given three restriction enzymes, cuts and base pairs on the plasmid map. How do you apply this information to a autoradiogram of sequencing gel? Also, include the band locations.

170. ## Pre calculus

Solve for all values between zero and 360 degrees. cos(theta-42 degrees)=-1 What is the general solution and what is the solution????

171. ## Geometry

If you have four lines how can you position them so that three are concurrent with each other and two are parallel to each other?

172. ## Math

If you are describing a graph that consists of a parabola and a line that intersect at two points, would the system be dependent and consistent. Or is dependent only used if the system has an infinite amount of solutions? Thanks!

173. ## PHYSICS (HELP)

A gyroscope consists of a uniform disc of mass radius M= 1 kg and radius R= 0.1 m . The disc spins with an angular speed ω= 300 rad⋅s-1 as shown in the figure below. The gyroscope precesses, with its axle at an angle 30∘ below the horizontal (see

174. ## Math

Growth rate of odd size object: Start: 1.5" w by 1.5" l by .25" h End: 3.25" w by 3.50" l by .25" h Did this object increase by 600%?

Write the inequality that represents the solution set for −20/11 y > −9/17.

how would you mentally figure out a percent discount without a calculator? (:

177. ## rates

a certain kind of lumber costs \$3.00 for 8ft . at this rate how much does 14ft cost

178. ## Math

On a blueprint/ the distance between the family room and kitchen is 3 inches. If 1/4 inch represents 1 foot on the blueprint, what is the actual distance from the family room to the kitchen? How do I solve it?

179. ## American History

How many words are in the U.S. constitution. A. 17,000 B. 30,000 C. 7,000 The Answer is C

180. ## Math

Three friends go to their favorite seafood restaurant for dinner. They decide to order a crab cake appetizer. When it arrives there are only 2 crab cakes. What fraction of a crab cake will each friend get to eat? 3/2 Write the fraction as a decimal rounded

181. ## math

Please I need help: I need to figure out the procedure to this question: Growth rate of odd size object: Start: 1.5" w by 1.5" l by .25" h End: 3.25" w by 3.50" l by .25" h Did this object increase by 600%? How do I figure this out? Thank you very much,

182. ## Media (Ms.Sue or Writeteacher)

Who are the stakeholders in media? once you have helped me with this question, I will post my answer. Please check it thanks

183. ## Grammar

Is this wrong? Anyone has a deal? I think it is supposed to be..... Anyone have a deal?

184. ## Quantitative methods

How do I plot following constrains in graph. 1. w + 4 s

185. ## US History

What is Patrick Henry referring to when he states : "Their clanking may be heard on the plains of Boston"?

186. ## Math

You have a table in your living room with a round top that has a diameter of 2 1/2 feet. You would like to put a piece of glass over the top of the table to protect the surface. What is the area of the table top? (Use 3.14 for the value of pi). Write your

187. ## Math

My second grader brought home this math problem for which I can find no solution. The sum of two numbers is 21. One number is two more than the other. What are the two numbers?

188. ## chemistry

how do we determine Cmolar ,metal from Cs,metal

189. ## History

When did construction of the Great Wall of China end? Please give me a website to refer to.

190. ## Science

How do I find a research question, sample size method of analysis , major findings in an article titled: Ethical challenges in the design and conduct of locally relevant international health research

191. ## English

If I use "anything," should I pair it with "it" or "them?" For example, "if I wanted anything, I could get it/them there."

192. ## Social Studies

paragraph about places kids would like to visit.

193. ## math

why do you think there are differences in how people view cultures

194. ## Social Studies (History)

What does it mean when it says, "Discuss how the membership within a union affects your views of that union."?

195. ## science

What can be inferred after performing the experiments in the Atomic Theory lab?

196. ## science

if a number is not an irrational number then it is s) a rational number b) a integer c) a whole number

3x+13=5(x-1)

198. ## Evaluating Expressions

3D+(5-D);D=4 ------ 2. 8+2G-G/2;G=6

199. ## US History

What does Patrick Henry mean when he writes "Shall we acquire the means of effectual resistance, by lying supinely on our backs..."

200. ## math

what is the equation of the horizontal asymtpote of f(x)=-4(5^(x-3))+1

201. ## LAW

When kidnappers contact a victim's family with instructions about delivering the ransom, investigators should: A. help the family decide who will make the ransom delivery. B. select the officer who most resembles the victim's family and send them to make