# Questions Asked onOctober 24, 2011

1. ## math

determine the value of k such that g(x)=3x+k intersects the quadratic function f(x)=2x^2-5x+3 at exactly one point determine the value(s) of k such that the linear function g(x)=4x+k does not intersect the parabola f(x)=-3x^2-x+4

2. ## Math

The numerator of a fraction is two less than its denominator. When both numerator and denominator are increased by 3, the fraction is incre ased by 3/20. Find the original fraction. Pls include solution and workings thx :)

3. ## physics

a small bead can slide without friction on a circular hoop that is in a vertical plane and has a radius of 0.100 m. The hoop rotates at a constant rate of 3.00 rev/s about a vertical diameter. Find the angle beta at which the bead is in vertical

4. ## English Check

Online Vs Traditional Dating Thesis : Technology has brought many innovations in human life and one of the greatest is online dating. However, just like Traditional dating, online involves a lot heartbreaks too and both are harmful if done recklessly. In

5. ## Calculus

The point A(-3, -5) is one the terminal arm of an angle feta. Determine the exact expressions for the primary trigonmetric ratios for the angle. Would that be 225 degrees. -2V2?

6. ## Chemistry

In the CO3^2- ion, all three C-O bonds have identical bond lengths of 136 pm. Why?

7. ## Math

For what values of k will the functon f(x)=kx^2-4x+k have no zeros Determine the values of k for which the function f(x)=4x^2-3x+2kx+1 have 2 zeros

a) How will the concentration of NaOH be affected if during the titration some of the solid potassium hydrogen phthalate was spilled during the transfer? Will the concentration of the standardized NaOH increase, decrease, or have no effect? b) How will the

9. ## physics

An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest.

10. ## physics

Three blocks of masses M1=26kg,M2=38kg and M3=41kg are connected by 2 strings over 2 pulleys.Friction is negligible. 1. Determine the magnitude of acceleration and 2. the magnitude of the tension in each of two strings

11. ## Calculus

A rectangle has a diagonal of 8cm. The diagonal creates a 60 degrees angle at the base of the rectangle. Write an exact expression for the base and the height of the rectangle. ^^ Don't get how to do that, Ive only drawn a triangular diagram, and im

12. ## Word Problem

A developer wants to enclose a rectangular grassy lot that borders a city street for parking. If the developer has 212 feet of fencing and does not fence the side along the street, what is the largest area that can be enclosed?

13. ## Physics

A block is pushed across a horizontal surface with a coefficient of kinetic friction of 0.15 by applying a 150 N horizontal force. If the block accelerates at the rate of 2.53 m/s2 (squared), what is the mass of the block?

14. ## organic chemistry

An ether and an alkene are formed as by-products in this reaction. Draw the structure of these by-products and give mechanism for their formation.

15. ## Psychology

1. Samantha is suffering from fatigue and sometimes cannot make herself get out of bed in the morning. She feels that the world is a sad, unhappy place and would like to be relieved of her existence. Dr. Powell and Samantha examine her feelings very

16. ## Physics

Each tire on a car has a radius of 0.330 m and is rotating with an angular speed of 19.5 revolutions/s. Find the linear speed v of the car, assuming that the tires are not slipping against the ground.

17. ## English Essay

I am supposed to write a comparison essay for English. Related to Online Vs Traditional Dating. Could you help me make a strong thesis? Technology has brought many innovations in human life and one of the greatest for many is online dating. However just

18. ## math

how long will it take $5000 to grow to$8000 if it is invested at 5% compounded quarterly?

19. ## physics

1. A boy drags a wooden crate with a mass of 20 kg, a distance of 12 m, across a rough level floor at a constant speed of 1.50 m/s by pulling on the rope tied to the crate with a force of 50 N. The rope makes an angle of 25¡ã with the horizontal. a.What

20. ## organic chemistry

Why does the alkyl halide layer switch from the top layer to the bottom layer at the point where water is used to extract the organic layer?

21. ## Ratios

Write this ratio as a fraction in lowest terms. (3 cups to 3 pints) Since 2 cups are equal to 1 pint, I conclude that there are 3 and a half cups.

22. ## English

1. If you are a bird, be an early bird And catch the worm for your breakfast plate. 2. If you're an early bird, you will catch the worm for your breakfast plate. (Does #1 mean #2 in meaning? a litle different?) 3. Be strong, and be healthy. 4. If you are

Using the data collected for part b on your data sheet, calculate the molar mass of the unknown acid. Include the calculation for each trial and the average. Trial One Results: Mass unknown acid: 0.500g Final buret reading: 18.01mL Initial buret reading:

24. ## Decimal word problem

Nadia's diet can says she can eat 3.5 ounces of chicken nuggets. The package weighs 10.5 ounces and contains 15 chicken nuggets. How many nuggets can Nadia eat? I've tried this question out, and I divided 10.5 by 3.5? Is that correct?

25. ## statistics

The weather forecaster reports that the probability of rain tomorrow is 10%, Which approach was used to arrive at this number?

26. ## chemistry

What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?

27. ## Chemistry

The mass of a sample of a liquid compound was found to be 0.534 g after the compound was vaporized in a containter placed in a boiling water bath at 100°C at 748 torr. The volume of the container was 286mL. Calculate the molecular mass of the compound.

28. ## statistic

In order to attract customers, an ice cream company has started a STAR game. Any person who collects four stars gets a free family size bucket of ice cream. Suppose that the probability of an ice cream pack contains a star is 0.3 (an ice cream pack cannot

29. ## Precalc

What is the upper and lower bound of sin x+2

30. ## Physics

Jane, looking for Tarzan, is running at top speed (6.2 m/s) and grabs a vine hanging vertically from a tall tree in the jungle. How high can she swing upward?

31. ## Physics

A student, crazed by final exams, uses a force of magnitude 86 N and angle θ = 61° to push a 5.2 kg block across the ceiling of his room, as in Figure 6-52. If the coefficient of kinetic friction between the block and the ceiling is 0.34, what is the

32. ## Calculus

A ladder 8 meters long is leaning against a wall. If the top of the ladder is slipping down at the rate of 8 meters per second, how fast is the bottom moving away from the wall when it is 7 meters from the wall? Please give your answer in , enter it

33. ## science

Aside from temperature change what is another but less major reason why sea levels might rise due to climate change?

34. ## calculus

f(x) = ln x, [1, 6] If it satisfies the hypotheses, find all numbers c that satisfy the conclusion of the Mean Value Theorem. (Enter your answers as a comma-separated list. If it does not satisfy the hypotheses, enter DNE).

35. ## math

What is the ratio formed between two parallelograms one is 2 inches by 6 inches and the other is 6 inches by 18 inches?

36. ## algebra,math

Use the Pythagorean Theorem to find the missing side of the triangle. Round to the nearest tenth, if necessary. a = ?, b = 5, c = 8 A. 6.0 B. 6.1 C. 6.2 D. 6.3

37. ## CALCULUS

At noon, ship A is 40 nautical miles due west of ship B. Ship A is sailing west at 23 knots and ship B is sailing north at 19 knots. How fast (in knots) is the distance between the ships changing at 5 PM? (Note: 1 knot is a speed of 1 nautical mile per

A long jumper leaves the ground at an angle of 25.2 to the horizontal and at a speed of 11.2 m/s. How far does he jump? The acceleration due to gravity is 9.8 m/s2 . Answer in units of m What maximum height does he reach?

39. ## persoanal finances

What are the three steps of critical thinking? What do they include? How might mastery of these skills make you a more effective college student and adult learner?

40. ## Science

In the reaction X+Y (R) Z, Z is the A)Substrate B)Product C)Enzyme D)Carbon Molecule

41. ## geometry

find the volume of the right prism whose base is a right triangle with legs 3 ft and 4 ft and with a height (altitude) of theprism being 8 ft

42. ## mATH

pi x 3.41 x 1,3019234 divided by 12347 x 8 + 12 - 1804351 x 235-135425 squaredx 10 to the fifth power + 1- 12438723562956918723847.

43. ## Psychology

1. Often called the "father of modern psychology." William Wundt painstakingly examined the small pieces of behavior. He was not interested in personality mental disorders. He did study the cognitive elements of: a. thinking, perception, and consciousness

44. ## Chemistry

I really don't get pH curves. I have to sketch a pH curve for the titration of 40.00 mL of 0.100 M hydrazine, H2NNH2(aq) having a Kb of 3.0x10^-6 by 0.100M HCIO4(aq). I know you can't sketch on here. But can you help me find the first point? I know its a

45. ## psychology

1. psychologists who believe in _____ are most likely to attempt to understand diversity in ethnic background as an influence on behavior: a. individual differences b. free will c. determinism d. universal principles is it "A" 2. Dr. Hall believes that

46. ## Chemistry

1. Regarding solutions and solids, which statement is true? A. If the solvent is water, the crystal lattice energy of a solid is absorbed. B. Hydration energy is related to the attractions between solute particles. (My Answer) C. If the solvent is water,

47. ## Physics

A)Two identical resistors are connected in parallel across a 30-V battery, which supplies them with a total power of 7.0 W. While the battery is still connected, one of the resistors is heated so that its resistance doubles. The resistance of the other

48. ## stat

The life (in hours) of a computer processing unit (CPU) is modeled as a weibull random variable with β=3 and α=901 hours. What is the probability that the CPU fails before 458 hours?

Using the data collected for part c on your data sheet and assuming the density of the vinegar is 1.00g/mL, 1) calculate the molar concentration of acetic acid (CH3COOH) in the vinegar sample using the average volume of NaOH. 2) calculate the mass percent

50. ## Calculus

In triangle PQR, angle P is 20 degres, angle R is 150 degrees, and QR is 6, the length of PQ is...?

51. ## Grammar

Is this a complex sentence? In most countries, people call the game of soccer football.

52. ## English

Thoreau included the following sentence in Walden: "There is some of the same fitness in a man's building his own house that there is in a bird's building its own nest." Which of the following statements rephrases his literal comparison as a metaphor? A. A

53. ## pre calc

What is the vertical and horizontal asymptotes of .. 3x _________ x^2-3x-10

54. ## statistics

government data assign a single case or each death that occurs in the u.s. the data show that the probability is 0.45 that a randomly chosen death was due to cardiovascular disease, and 0.22 that i was due to cancer. Suppose a docote checked the cause of

For a chemistry lab the experiment was to carry out an acid-base titration to determine the exact concentration of a sodium hydroxide solution. Two trials were completed and the data collected was: mass of weighing paper, mass of weighing paper + KHP, mass

56. ## Biology

Locate a diagram of an organism with the main organs and structures labeled. Locate a diagram of an organism with the main organs and structures labeled. Briefly explain how the organism in the diagram has evolved physiologically to become suited to its

57. ## Stats

Classify the following as discrete or continuous random variables. (A) The time it takes to run a marathon (B) The number of fractions between 1 and 2 (C) A pair of dice is rolled, and the sum to appear on the dice is recorded (D) The length of a broad

58. ## Stats

In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that: (A) exactly two will have this mild side effect (B) at least

59. ## math

A company manufactures calulatoirs in batches of 64 and ther is a 5% rate of defects. Find the standard deviation for the number of defects per batch

60. ## algebra

Joel has 2 gallons of water. He drinks gallon per day. How long will the water last? Express your answer in simplest form.

What can you conclude about the effect of the thermal expansion of water on sea level?

62. ## physics

An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest.

63. ## physics

An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest.

64. ## science

Listed below are six mixtures. Identify physical properties of the components that allow you to separate them. Then, explain the method you would use to separate the components. Mixture 1: Salt dissolved in water Physical Properties: Density Method of

65. ## MATH

Marth's mother is 5 times as old as Marta Marth'smother is 25 years old 1. How old is Matra? 2.In 5 years Marta's mother will be 3 times as old as Marta.How old will Marta be then?

66. ## Statistics

Consider a population with µ=73.6 and 0 = 5.38 (A) Calculate the z-score for x =72.7 from a sample of size 45. (B) Could this z-score be used in calculating probabilities using Table 3 in Appendix B of the text? Why or why not?

67. ## Shelly

I really don't get pH curves. I have to sketch a pH curve for the titration of 40.00 mL of 0.100 M hydrazine, H2NNH2(aq) having a Kb of 3.0x10^-6 by 0.100M HCIO4(aq). I know you can't sketch on here. But can you help me find the first point? I know its a

68. ## physics

An earthquake generates three kinds of waves: surface waves (L waves), which are the slowest and weakest; shear (S) waves, which are transverse waves and carry most of the energy; and pressure (P) waves, which are longitudinal waves and travel the fastest.

69. ## Chemistry 12

I really don't get pH curves. I have to sketch a pH curve for the titration of 40.00 mL of 0.100 M hydrazine, H2NNH2(aq) having a Kb of 3.0x10^-6 by 0.100M HCIO4(aq). I know you can't sketch on here. But can you help me find the first point? I know its a

70. ## physics

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t =

71. ## Interview question - Why do you want to work here?

I want to be able to expand my horizons and gain experience that I hope will be able to help me later in my professional career. I enjoy bringing people happiness through satisfaction. This is not only a fine opportunity, but this company is a place where

72. ## physics

Mr and Mrs Gold are carrying a 58 kg gold shipment on a 4 m long 13 kg board as shown. Find the force in newtons exerted by each to carry the shipment.

73. ## EssayCHECK

Online Vs Traditional Dating Innovations and technology has brought about many changes in day to day human life. More recently, and with the advent of the internet, communication amongst people from all over the world has drastically increased to levels

74. ## physics

In a roller coaster ride cars and passengers slide down an incline of 36 degrees to horizontal if the friction is negligible find magnitude of acceleration

75. ## Physics

A golfer is enjoying a day out on the links. What maximum height will a 345m drive reach if it is launched at an angle of 21 degrees to the ground? the acceleration due to gravity is 9.81m/s^2

76. ## calculus

using the intermediate value theorum, prove that arctanx = arccosx has a solution. i've gotten that the domain of arctanx is -pi/2 to pi/2 but i'm not sure where to go from here...can i move the arccosx to the left? when i do that, i can't figure f(pi/2)

77. ## statistics

The profit for a new product is given by Z = 2X - 2Y - 7. We know that X and Y are independent random variables with Var(X) = 2 and Var(Y) = 2.7. What is the variance of Z?

78. ## Decimal problem #2

The glass mirror of the Hubble telescope had to be repaired in space because it would not focus properly. The problem was that the mirror's outer edge had a thickness of 0.6248 cm when it was supposed to be 0.625 cm. Was the edge too thick or thin? By how

79. ## physics

A rock climber climbs a 15 m vertical rock wall while wearing a 5.3 kg backpack. How much work does the climber do on the backpack?

80. ## math

What is the LCM AND GCF OF 369 AND 3075

81. ## algebra,math

Solve the equation. 4 times the square root of x minus 5 minus 8 = 12

82. ## Math

you buy 3 books that each cost the same amount and a magazine all for 59.99.You know that the magazine costs 1.99. How much does each book cost?

83. ## Physics

A mortar shell is launched with a velocity of 100m/s at an angle of 30 degree above the horizontal from a point on a cliff 50m above a level plain below. How far from the base of the cliff does the mortar shell strike the ground?

84. ## physics

Hayes fires a projectile from his air gun. The gun provides a constant 300 N of force on a 0.1 kg projectile as it travels through the 0.3 meter barrel. How fast is it going when it leaves? It starts from rest and there is no friction.

85. ## math

if my ones digit is 5 more then the tens digit, i am greater than 25 and less than 35. what number am i?

86. ## Trick or Treat

Little Billy was out trick or treating on Halloween. He had gotten a lot of candy and was peering into his bag, when out from behind a tree came Freddy Krueger. Freddy reached into Billy's bag and took half of his candy plus one piece. Within a few steps,

87. ## Physics

Sam, whose mass is 72.0 kg, takes off down a 51.0 m high, 11.0^\circ slope on his jet-powered skis. The skis have a thrust of 180 N. Sam's speed at the bottom is 43.0 {\rm m/s}. What is the coefficient of kinetic friction of his skis on snow?

88. ## MATH

subtracting fractions::: 8 1 - 10 - 2 5 - 6 my answer: 5 4 - 15

89. ## latin

what latin word is the phrase strong distaste derived rom

90. ## Chemistry

How much by mass of Urea (NH2)2CO is required for a 32.5% solution in one litre of water.

91. ## Physics

A 120 kg car is travelling at a velocity of 20m/s East when its brakes are locked. Assuming a force of friction of 2500 N, what is the velocity of the car after 0.50s.

92. ## Biology, Art

I was doing some research for a wildlife art contest in January and I can't seem to find a specific bit of information that is crucial to my painting. The contest requires me to paint a Greater Short Horned Lizard (Phrynosoma hernandesi) and I know that

93. ## general science

A Graph Shows Distance On The Vertical Axis And Time On The Horizontal Axis. If The Speed Is Steadily Increasing, What Will The Line Representing Speed Look Like On The Graph?

94. ## physics

A quarterback throws the football to a stationary receiver who is 16 m down the ﬁeld.The football is thrown at an initial angle of38.5◦to the ground.The acceleration of gravity is 9.81 m/s2.a) At what initial speed must the quarterback throw the ball

95. ## Algebra

1a. What would it cost for ingredients , per cookie, to make 100 cookies? C=100/4x-28 is the equation given to find the cost.

96. ## Social Studies (ATHENS VS SPARTA)

How did the growth of the Athenian power lead to war?

97. ## physics

we know that the speed of light in a vacuum is 3.0 x 10^8 m/s (18,000 mi/sec). If light travels through thick plastic with a speed of 1.75 x 10^8 m/s, what is the index of refraction through plastic?

98. ## MATH

HOw to do this 5 is what percent of 15? in a proportiono

99. ## Geo

If NM=x-1 and AB=3x-7, then AB=?

100. ## organic chemistry

what are the formulas of the salts that may precipitate when the reaction mxture is cooled?

101. ## Physics

In Denver, children bring their old jack-o-lanterns to the top of a tower and compete for accuracy in hitting a target on the ground. Suppose that the tower height is h = 9.80 m, and that the bulls-eye is a horizontal distance of d = 3.2 m from the launch

102. ## calculus

How do you find the ariea between these curves? y=4x^2 y=7x^2 4x+y=3 x>=0?

103. ## science

how to make the musical instruments in the classroom

104. ## Physics

A crow is flying horizontally with a constant speed of 2.50 m/s when it releases a clam from its beak. The clam lands on the rocky beach 2.20 s later. Consider the moment just before the clam lands. (Neglect air resistance.) A) What is its horizontal

105. ## math

Every week Bradley doubles his card collection. He started with 2 cards. How many cards will Bradley have after 6 weeks?

A newspaper has 80 pages. If 20 of the 80 pages are devoted to advertising. What percent of the newspaper consists of advertising? How do u start this?

107. ## Accounting

Could someone please look this over and tell me if I have this correct? I am not confident in the Trial Balance. May 1 Cash 101 25,000 Common Stock 311 25,000 3 Supplies 126 2,500 Accounts Payable 201 2,500 7 Rent Expense 729 900 Cash 101 900 11 Accounts

108. ## algebra,math

What is the axis of symmetry for the function? y = x^2 + 3x - 4

109. ## Physics

A 862-kg car starts from rest on a horizontal roadway and accelerates eastward for 5.00 s when it reaches a speed of 30.0 m/s. What is the average force exerted on the car during this time?

110. ## organic chemistry

Aqueous sodium bicabonate used to wash the crude n-butyl bromide. a) What was the purpose of this wash? Give equation. b)Why would it be undesirable to waash the crude halide with aqueous sodium hydroxide?

111. ## algebra

Which coefficient in the function tells us that the parabola for the function will point downward? y = -2x^2 + 5x - 4

112. ## Calculus

Determine two angels between 0 degrees and 360 degrees that have a sine ratio of -1/2. Would that be 30 and 330?

113. ## math

THE NUMBER OF MILES SARAH WALKED ON A DAILY BASIS IS 2.5 MILES. THREE MONTHS LATER,SARAH IS WALKING 6 MILES EACH DAY. WHAT IS THE PERCENT INCREASE

The radius of a right circular cylinder is given by t + 9 and its height is (1/9)*(t^0.5) where t is time in seconds and the dimensions are in inches. Find the rate of change of the volume with respect to time. units = in^3/s

115. ## algebra

What is the axis of symmetry for the function? y = x^2 + 3x - 4 A. y = -2 B. y = -1.5 C. x = -2 D. x = -1.5

116. ## Repost Algebra

What would it cost for ingredients , per cookie, to make 100 cookies? C=100/4x-28 is the equation given to find the cost. (Cost is equal to 100 over 4x minus 28)

117. ## Chemistry

In a certain experiment, when light of wavelength 570 nm is directed on to the photocell, electrons are emitted at the rate of 6.6 10-13 Coulombs/sec. Assume that each photon that impinges on the photocell emits one electron. How many photons per second

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t =

119. ## organic chemistry

Why must the alkyl halide product be dried carefully with anhydrous calcium chloride before the distillation?

120. ## physics

A 16m long ladder is mounted on a fire truck. The ladder itself has mass 130kg , and at the top is a 32kg basket holding a 83kg firefighter. If the ladder makes a 60 degrees angle with the horizontal, what's the magnitude of the net torque about the

121. ## Physics

A 3.01 kg block slides down a frictionless plane inclined 18.6° to the horizontal. If the length of the plane's surface is 1.47 m, how much work is done, and by what force?

122. ## geometry

given line segment PQ , PQ=3QR, and QR= 1/3 RS Prove: line segment PQ is congruent to line segment RS

123. ## Physics

You're driving your pickup truck around a curve with a radius of 22meters. A box in the back of the truck is pressed up against the wall of the truck. -How fast must you drive so that the force of the wall on the box equals the weight of the box?

124. ## AP GLOBAL

Explain the basic features of Dravidian and Aryan religious structures which became the basis of Hinduism. I jest need some more to add on to what I already have. Thanks. Dravidian (Harappan) religion had strong beliefs about fertility. Harappan worshipped

125. ## Mathematics

There are 2 white marbles in urn A and 4 red marbles in urn B . At each step of the process a marble is selected from each urn and the 2 marbles are interchanged.What is the probability that there 2 red marbles in in urn A after three steps....please give

126. ## physics

A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700 , and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to 2600 . The

127. ## algebra

The vertex of y = 9 - 8x - x^2 is (-4, 25) True False

128. ## algebra

What is the equation for the axis of symmetry in the function? y = -2x^2 + 5x - 4

129. ## MATH

LAST YEAR, A TICKET TO A MOVIE COST $7.50. THIS YEAR, THE PRICE INCREASED TO$9.00. BY WHAT PERECT IS THE PRICE INCREASE

130. ## physics

A transport plane takes off from a level landing field with two gliders in tow, one behind the other. The mass of each glider is 700n , and the total resistance (air drag plus friction with the runway) on each may be assumed constant and equal to 2600n .

131. ## Chemistry

What caroxylic acid and alcohol is needed to produce isopentyl propionate?

132. ## Calculus

Fine the measure of feta, to nearest degree, where 0 degrees is less or equal to feta, and feta is less or equal to 360 degrees. tan feta + 5 = 0, I tried working this out and I got -78.6:\

133. ## c++ program

how can a modfiy this source code to a menu. #include #include #include main() { char cYesNo = '\0'; int iResp1 = 0; int iResp2 = 0; int iResp3 = 0; int iElaspedTime = 0; int iCurrentTime = 0; int iRandomNum = 0; int i1 = 0; int i2 = 0; int i3 = 0; int

134. ## health

what are bridge maps and tree maps

135. ## chemistry

given: V1=410 ml, T1=27 degrees celsius, P1= 740mm. what is the V2 in ml at STP?

136. ## Calculus

Determine the measure of A if 0 degrees is less or equal to angle A and if angle A is less or equal to 360 degrees. Tan A = 0 Answer is somehow supposed to be 0 degrees, 180 degrees, and 360 degrees, but don't know how to get the answer, just really

137. ## CJS/240

Complete the Uniform Crime Report (UCR) and Self-Report Data Matrix in Appendix B. Complete the matrix, by listing two pros and two cons on the use of UCR data and two pros and two cons on the use of self-report data. Locate two web resources—one

138. ## math

john had 15 dollars more than half of what jack had. john had 86 dollars. how much did jack have?

139. ## Physics

If it takes 470 J of work to stretch a spring 7.4 cm, what is the spring constant?

152. ## algebra,math

The parabola for the function will point in which direction? y = x^2 + 3x - 4 A. Upward B. Downward

153. ## calculus

a ball is thrown upward at 96 feet per second from the top of a 100 foot building. 1.when will the ball obtain maximum height 2. when will the ball hit the ground?

154. ## calculus

an open topped cylingrical pot is to have a volume of 125 cm^3. determine the minimal possible amount of material used in making this pot.( neglect the thickness of the material as well as possible waste)

155. ## Physics

A CD has a mass of 15.0 g, an inner diameter of 1.5 cm, and an outer diameter of 11.9 cm. Suppose you toss it, causing it to spin at a rate of 4.5 revolutions per second. (a) Determine the moment of inertia of the CD, approximating its density as uniform.

184. ## Physics

During a picnic, you and two of your friends decide to have a three-way tug-of-war, with three ropes in the middle tied into a knot. Roberta pulls to the west with 412 N of force; Michael pulls to the south with 580 N. In what direction and with what

185. ## Physics

When only the front wheels of an automobile are on a platform scale, the scale balances at 7.9 kN; when only the rear wheels are on the scale, it balances at 6.2 kN. What is the weight of the automobile? How far is its center of mass behind the front axle?

186. ## history ( is this considered a good answer?

Identify the marshall plan (locate it historically) and explain its historical significans. Marshall Plan(June 1947 to 1952) Rebuild Europe Stabilize democracies and US allies Try to split Eastern European countries from the Soviet Union

187. ## math modeling

An investment is made at an annual rate of 9.71% compounded monthly, determine the number of months required for your investment to double.

188. ## chemistry

what mass of potassium chloride is required to prepare 5.00L of a 2.00M solution of KCL

189. ## Physics

A 110 g hockey puck sent sliding over ice is stopped in 14.9 m by the frictional force on it from the ice. (a) If its initial speed is 7.8 m/s, what is the magnitude of the frictional force? (b) What is the coefficient of friction between the puck and the

190. ## Math

Little Billy was out trick or treating on Halloween. He had gotten a lot of candy and was peering into his bag, when out from behind a tree came Freddy Krueger. Freddy reached into Billy's bag and took half of his candy plus one piece. Within a few steps,

191. ## computers

example of printers and other hardwar

192. ## physics

How far (in meters) must a 800 kg pile driver fall, if it is to do 18000 J of work?

193. ## MATH

THE TABLE SHOWS THE NUMBER OF STUDENTS PARTICIPATING IN THE SCHOOL DRAMA CLUB LAST AND THIS YEAR WHAT IS THEB PERCENT INCREASE IN STUDENT MEMBERSHIP FROM LAST YEAR TO THIS YEAR ROUND YOUR ANSWER TO THE NEARESTBN TENTH IF NECESSARY

194. ## math boxes 3.3

make up a set of at least twelve numbers that hav the following landmarks maximum:8 range:6 mode:6 median:5

195. ## chemistry

Fe2+ + MnO4- + Fe3+ + Mn2+ which of the elements is undergoing oxidation and which of the elements is the oxidizing agent?

196. ## algebra

Does this set of data have any outliers? Data: 1, 2, 2, 4, 6, 6, 7, 8, 9, 10, 12, 13, 16, 16, 18

197. ## Biology/math?

If ‘pi’ is approximately 3.14, and your field of view is 3 mm in diameter, what is the area of your field of view?

198. ## physics

At the base of a frictionless icy hill that rises at 23.0m above the horizontal, a toboggan has a speed of 12.0m/s toward the hill. How high vertically above the base will it go before stopping?

Use the terms factor, divisor,multiple, product and divisible by to write as many statements as you can about the number sentence below. 7*9=63

200. ## chemistry

write the name or formula for a reagent that will dissolve PbCl2 but not Hg2Cl2 and AgCl?

201. ## Algebra

Could someone please show me how to write this equation in standard form? x^2 + y^2 - 6x+8y+9=0

202. ## algebra

The stem-and-leaf plot represents the average monthly high temperatures in Tampa, Florida. What is the third quartile (Q3) of the temperatures? stem 6 leaf 9, stem 7 leaves 1 2 6 7, stem 8 leaves 1 4 7 9 9, stem 9 leaves 0 0 A. 85 B. 87 C. 88

203. ## pre aljabra

how do you find the greatest common factor of 44,47

204. ## Chemistry

NH4NO3 (aq) + (heat) --> 2 H20 (l) + N2 (g) Calculate the mass in grams of ammonium nitrate that must be used to produce 1.50 L of nitrogen gas collected over water at 30°C and 748 torr. At 30°C, PH20 = 31.8 mmHg. Find the moles of nitrogen gas.

205. ## physics

Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Assume the orbit to be circular and 720 km above the surface of the Moon, where the acceleration due to gravity is 0.839 m/s2. The radius of the Moon is

206. ## climate change

What are the consequences of the rising sea level? TY

207. ## physics

A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure below. The length of the arc ABC is 210 m, and the car completes the turn in 38.0 s. (a) What is the acceleration when the car is at B located

how do you solve 2x^2+x^3=96?

209. ## statistics

Suppose the amount of time it takes for statistics students to complete their midterm is normally distributed with a mean of 85.70 minutes and a standard deviation of 22.55 minutes. If 10 students are randomly selected, what is the probability that they

210. ## statistics

IQ scores are normally distributed and assume that the average IQ for all Economics majors is 108 with a standard deviation of 11. What percentage of Economics majors would have an IQ of more than 118?

211. ## Andasol

Does the expression d-12 have a grater value when d=42 or when d=46

212. ## Physics

A 1000 kg car rolling on a horizontal surface has speed v = 55 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.2 m. What is the spring stiffness constant of the spring?

213. ## Algebra 2

Question is about Step Functions:(between" " are all floor functions. The formula W=d+2m+"(3(m=1)/5)"+y+"y/4" -"y/100" + "y/400" + 2 gives the day of the month of the given date; m = the number of the month in the year with January and February regarded as

214. ## chemistry

What is the ion in the resulting solution? 100.0 mL of 0.015 M K2CO3 and 100.0 mL of 0.0075 M BaBr2? 25 mL of 0.57 M Ni(NO3)2 and 100.0 mL of 0.150 M NaOH

215. ## Physics

a 10 foot long teeter-totter pivots in the middle. a 50 lb boy sits on one end. Where must a 100 lb boy sit to balance the beam?

216. ## algebra

The volume of a pyramid with a rectangular base is V= 1/3 x LWH Find W if V = 500, L = 15, and H = 4.

217. ## physics

A rock climber climbs a 15 m vertical rock wall while wearing a 5.3 kg backpack. How much work does the climber do on the backpack?

218. ## grammar

Thank you for your help. I have 2 more questions. Which is an independent clause? when I saw her across the street I waved frantically to get her attention because I wanted to tell her something I think is is I waved frantically. Next is which is a

219. ## College Chemistry

a sample bulb contained 0.712g of H2(g) at a certain temperature and pressure. At the same temperature and pressure, the bulb can hold 13.0g of an unknown gas. What is the molar mass of the unknown gas?

220. ## chemistry

Now take another 35 mL of the 0.50 M pH 6.59 buffer and add 1.5 mL of 1.00 M NaOH. Using steps similar to those above, calculate the new pH of the solution. find pH

221. ## Phyisical science

How much energy is in a soccer ball that is moving at 3 m/s and has a mass of 2kg.

222. ## Calculus

How do you solve the integral from 0 to 1 of x arctan x dx?

223. ## Physics

An autographed baseball rolls off of a 0.85 m high desk and strikes the floor 0.68 m away from the desk. How fast was it rolling on the desk before it fell off? The acceleration of gravity is 9.81 m/s2 . Answer in units of m/s

224. ## science

Aside from temperature change what is another but less major reason why sea levels might rise due to climate change?

225. ## physics

You are riding in a school bus. As the bus rounds a flat curve at constant speed, a lunch box with a mass of 0.470 suspended from the ceiling of the bus by a string of length 1.85 is found to hang at rest relative to the bus when the string makes an angle

226. ## physics

Two objects with masses 5.50 and 3.00 hang 0.500 above the floor from the ends of a cord 5.70 long passing over a frictionless pulley. Both objects start from rest. Find the maximum height reached by the 3.00 object

227. ## chemistry

How many milliliters of a solution of 0.0013 M EDTA4- would be used to titrate the lead in 1000. mL of a 0.0073 M solution of Pb(NO3)2? I'm sry, but I keep getting 5200ml and I know that's just wrong! >< can someone please help me?

228. ## Calc

Find the integral from -∞ to -1 of 1/(1+x²) dx. I started working the problem out, and so far I got the lim as z→-∞ of [arctan (-1) - arctan (z)]. I'm a little bit confused exactly what is means when you plug -∞ into z, and how to solve the

229. ## math

The first and seventh terms of a sequence are both 8. Starting with the third term, each term is the sum of the two previous terms. What is the fifth term?

230. ## Chemistry

03 + 3I- + H20 --> O2 + I3^- + 2OH- A 1.00-L bulb of air containing O3 produced by an electric spark was treated with 25mL of 2M KI, shaken well, and left closed for 30 minutes so that all O3 would react. The aqueous solution was then drained from the

231. ## Stats

A bag of colored blocks contains the following assortment of colors: red (18), blue (14), orange (20), purple (14), green (10), and yellow (4). Construct the probability distribution for x. I'm so lost....

232. ## physics

an experimental jetplane just after takeoff climbs with a speed of 500km/hr at an angle of 37 degrees with the horizontal. At what rate is the plane gaining altitude?

i^20

234. ## Grammar

Select the correctly punctuated sentence. 1.A) Dr. Jones is an excellent surgeon but does not have a good bedside manner. B) Dr. Jones is an excellent surgeon, but does not have a good bedside manner. C) Dr. Jones, is an excellent surgeon, but does not

235. ## physics

At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 830 m/s2 and the vertical or y component of its acceleration is 1100 m/s2. The ball's mass is 0.37 kg. What

236. ## science

What is the difference in Thermal Energy and Heat.

237. ## physics

A stone is thrown horizontally at a speed of 4.8 m/s from the top of a cliff 88.5 m high. How long does it take the stone to reach the bottom of the cliff?

238. ## Stats

How many green elements are required to make this a legitimate probability distribution if there are a total of 50 elements in this sample? x red blue orange brown green P(x) 0.20 0.16 0.28 0.24 Would it be 0.11??

239. ## Russian

russian farmland has been damaged by

240. ## Physics

Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.80 1011 m apart. The larger of the two stars has a mass of 3.50 1030 kg, and its center is 3.00 1011 m from the system's center of mass. What is the mass of

241. ## l;k

Write a program that asks the user to enter the student’s name (first and last), and his/her first exam grade of three students, and then display them in a neat format. After that the program will find the average of the three grades, and print it

242. ## Spanish

Can someone help translate this proverb to English? -------- La casa de huérfanos de Lima fue fundada en 1597 por Luis Ojeda el Pecador, bajo la advocación de Nuestra Señora de Atocha. Lo que movió al caritativo varón a ocuparse de los expósitos fue

243. ## algebra worD PROBLEM

1) For a walkathon a sponsor commmited to give you a flat ffe of $5 plus$2 for every mile you walk. Write an expression for the total amount you will collect from your sponsor at the enf of the walkathon. Then evaluate your =expression for 20 miles

244. ## Physics

Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.80 1011 m apart. The larger of the two stars has a mass of 3.50 1030 kg, and its center is 3.00 1011 m from the system's center of mass. What is the mass of

245. ## Math

The length and width of a rectangle are (x+4)cm and xcm respectively. Write down expressions for: A. The perimeter of the rectangle B. The length of the side of a square with the same perimeter If the sum of the areas of the square and the rectangle is

246. ## social studies

what are some non-examples in multiculturalism?

247. ## MATH

what is the value of y if x=-1 in a constant function? is it 1 or -1?

248. ## pre-calculus

Let f(x)=x^2+bx+27. Find the value(s) of b so that f(x) has minimum value of 2.

14/15=2x

250. ## Chemistry

a) How will the concentration of NaOH be affected if during the titration some of the solid potassium hydrogen phthalate was spilled during the transfer? Will the concentration of the standardized NaOH increase, decrease, or have no effect? b) How will the

251. ## Chemistry

Using the data collected for part b on your data sheet, calculate the molar mass of the unknown acid. Include the calculation for each trial and the average. Trial One Results: Mass unknown acid: 0.500g Final buret reading: 18.01mL Initial buret reading:

252. ## Physics

An aluminum wire is hung between two towers and has a length of 175 m. A current of 125 A exists in the wire, and the potential difference between the ends of the wire is 0.300 V. The density of aluminum is 2700 kg/m3. Find the mass of the wire

253. ## Chemistry

Sulfite (SO3^2-) in wine was measured by the following procedure: 50.0ml of wine were added 5.00ml of solution containing (0.8043 g KIO3 + 5 g KI)/100ml. Acidification with 1.0ml of 6.0 M H2SO4 quantitatively converted IO3^- into I3^-. I3^- reacted with

254. ## Chemistry

Using the data collected for part c on your data sheet and assuming the density of the vinegar is 1.00g/mL, 1) calculate the molar concentration of acetic acid (CH3COOH) in the vinegar sample using the average volume of NaOH. 2) calculate the mass percent

255. ## math

one box holds 16 crayons. ANOTHER BOX HOLDS 24 CRAYONS. wRITE A SENTENCES USING WOLDS THAT COMPARES THE CRAYONS IN THE TWO BOXES.

256. ## physics

A wire of uniform linear mass density hangs from the ceiling. It takes 0.82 s for a wave pulse to travel the length of the wire. How long is the wire?

257. ## Physics

Two stars in a binary system orbit around their center of mass. The centers of the two stars are 7.80 x 10^11 m apart. The larger of the two stars has a mass of 3.50 x 10^30 kg, and its center is 3.00 x 10^11 m from the system's center of mass. What is the

260. ## Physics

An isolated segment of wire of length L=4.50 m carries a current of magnitude i=35.0 A at an angle theta=50.3 degrees with respect to a constant magnetic field with magnitude B= 6.70E-2 T. What is the magnitude of the magnetic force on the wire? a) 2.66 N

261. ## Physics

A 1-kg thin hoop with a 50-cm radius rolls down a 47° slope without slipping. If the hoop starts from rest at the top of the slope, what is its translational velocity after it rolls 16 m along the slope? I got the height by 16sin47=11.7 m I tried putting

262. ## owning

The _______ is the contract that seals the deal when you buy a car. A.loan application B.warranty C.loan agreement D.sales agreement i got C

264. ## Math-URGENT,

Given that y varies directly with x, write a direct variation equation that relates x and y. x=1/3

265. ## pre-cal

Find B so that F(x)=-x^2+bx-75 has a maximum value of 25.

266. ## science

How does the Kinetic Theroy of Heat explan Solids, Liquids, and gasses?

267. ## College Algrebra

How would you use synthetic division to find the quotient and remainder for this problem: (X^3+3ix^2-4ix-2)/(x+i)

272. ## College Algebra

Show all work. A projectile is fired from a cliff 100 ft above the water at an inclination of 45 degrees to the horizontal, with a muzzle velocity of 260 ft/second. The height of the projectile above the water is given by h(x)= ((-32x^2)/(260)^2)+x+100,

273. ## Chemistry

In a certain experiment, when light of wavelength 570 nm is directed on to the photocell, electrons are emitted at the rate of 6.6 10-13 Coulombs/sec. Assume that each photon that impinges on the photocell emits one electron. How many photons per second

274. ## Interview question - Why do you want to work here?

I answered this in a very simple manner. I need a job to pay for my expenses that are building up. I also need to gain work experience, and if I could get the oppurtuity to become a member of your team, that would be a great help to me later in my

275. ## science

Imagine that you were on the moon (which has an acceleration rate 1/6 that of earth's 9.8 m/s) What would it's gravitiational acceleration rate be?

276. ## math

how can i estimate in the first step of solving a division problem

277. ## Spelling and Writing

how to rewrite sentences that have mistakes in capitalizing and punctuating compound sentences

278. ## trilbailzer

which saying had the largest number of believers?

279. ## math

A horse gallops a distance of 10 kilometers in a time of 30 minutes. What is its average speed?

280. ## geometry

triangular pyramid with base vertices C, A, E and B, D, and F How many planes are shown in the figure?

281. ## algebra,math

what is the vertex for the function? y= x^2 - 4x -3

282. ## Physics

A pilot is performing vertical loop the loop over the ocean at noon . The plane speeds up as it approaches the bottom of the circular loop and slows as it approaches the top of the loop. An observer in helicopter is watching the shadow of the plane on the

283. ## math

two cars leave the same point at noon. one car travels north and the other car travels east. suppose the northbound car is traveling 40mph, and after two hours, the two car are 100 miles apart.how fast is the other car going?

284. ## math

two cars leave the same point at noon. one car travels north and the other car travels east. suppose the northbound car is traveling 40mph, and after two hours, the two car are 100 miles apart.how fast is the other car going?

285. ## math..

Use only four 4's along with any mathematical operators to make a total of 2348.

286. ## chemistry

Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.00-g sample is burned, and 2.50 g of CO2(g) is produced. What is the mass percentage of the table salt in the mixture

287. ## math

you want to take an 8-ft.wide piece of plywood through a 36-inch-wide door. What is the minimum possible height for the door to allow youto fit the plywood?

288. ## BEDMAS with decimals

Hi, I'm having trouble with this question that I have worked on, but I didn't get the right answer. 25.1 + 11.4 / 7.5 (3.75)

what is a statement about miss saunders ?

complete the following problem 4+8+7/3*72

311. ## Math

At the potluck , there were 6 pecan pies, 7 lemon pies, 13 cherry pies, and 8 apple pies. Find the ratio in simplest form. Then explain its meaning.

312. ## mathssss

Use only four 4's along with any mathematical operators to make a total of 2348.

313. ## geomatry

a sequence begins -4,1,6,11 find the rule that generates the sequence. Then give the 5oth term is the sequence. What type of reasoning inductive or deductive, do you use when solving this problem?

314. ## physics

we know that the speed of light in a vacuum is 3.0 x 10^8 m/s (18,000 mi/sec). If light travels through thick plastic with a speed of 1.75 x 10^8 m/s, what is the index of refraction through plastic?

315. ## algebra

Use the Pythagorean Theorem to determine if the three numbers could be the measures of the sides of a right triangle. Assume that the largest is the hypotenuse. 20, 6, 21 A. yes B. no

316. ## Math

At the potluck , there were 6 pecan pies, 7 lemon pies, 13 cherry pies, and 8 apple pies. Find the ratio of apple pies to the total number of pies. Write the ratio in simplest form. Then explain its meaning.

317. ## Science

Formula for photosynthesis and respiration?[:

319. ## mgt/230

Ok need help not getting this I'm to descrbe the organizational structure of you selected organization i chose burger king, then Im supposed to compare and contrast that structure with two different organizational structures? I m not sure what to do.

320. ## Math

What is the answer to A basket with 12 apples has a mass of 3,105 grams. The same basket with 7 apples has a jhaad of 1980 grand each apple has the same mad what is the mess of the baskets?

321. ## geography

Which statements describe cultural influences? Florida is bordered by water on three sides. French is spoken in parts of Louisiana. Forests are cleared to provide space for cattle grazing. Male children are encouraged to attend the university. The longest

322. ## physics

A block of mass m = 3.20kg slides from rest a distance d down a frictionless incline at angle θ = 30.0° where it runs into a spring of spring constant 425 N/m. When the block momentarily stops, it has compressed the spring by 22.0 cm. (a) What is the

323. ## computers

You have been hired by your local library to help it set up a LAN to connect its three library sites. The director of the library, Robert Jienwerski, has a good understanding of the jargon used by network installers and administrators. Robert is very