1. statistics

The probability that a house is burglarized in the city is 5%. If 50 houses are randomly selected, what is the probability that none will be burglarized?

2. Physics

1. Find the pressure exerted on the ground (in psi) by a 250 lb person who is sitting on a chair whose 4 legs touch the ground with area of '1 by2' each. 2.a)A large 50 kg crate is at rest on level ground. Two people push on the crate. One pushes north

3. Physics

1. A bullet of 0.0500 kg is fired into a block of wood. Knowing that the bullet left the gun with a muzzle velocity of 350. m/s, and the bullet penetrates .15 m into the block of wood, determine: a) The average force required to stop the bullet. b) The

4. Chem 151 - help

Write the balanced equation for the neutralization reaction between H2SO4 and KOH in aqueous solution. Phases are optional.

5. Chem 2

A 50/50 blend of engine coolant and water (by volume) is usually used in an automobile\'s engine cooling system. If your car\'s cooling system holds 4.00 gallons, what is the boiling point of the solution? Make the following assumptions in your

6. physics

A rocket initially at rest accelerates at a rate of 99.0 meters/second2. Calculate the distance covered by the rocket if it attains a final velocity of 445 meters/second after 4.50 seconds.

7. algebra

Cindy has 34 meters of fencing. She plans to build a rectangular dog run that is 2 meters wide. How long can the dog run be?

8. chemistry

A solution is prepared by dissolving 20.2 {\rm mL} of methanol ({\rm{CH}}_3 {\rm{OH}}) in 100.0 {\rm mL} of water at 25 ^\circ {\rm C}. The final volume of the solution is 118 {\rm mL}. The densities of methanol and water at this temperature are 0.782 {\rm

9. Organic Chemistry

How do I figure out the limiting reagent for this experiment? Preparation of diphenylacetylene! Step 1:: trans-stilbene + pyridinium hydrobromide perbromide in glacial acetic acid -----> stilbene dibromide Starting weight of trans-stilbene: 2.014g Starting

10. Chem 2

A solution is made by mixing 47.0 mL of ethanol, C2H6O, and 53.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 °C?

11. Physics

An office copier uses a lens to place an image of a document onto a rotating drum. The copy is made from this image. (a) What kind of lens is used? Should it be 1 - converging, or 2 - diverging? Suppose the lens has a focal length of magnitude 13.0 cm. If

12. Chem 1046

An electrochemical cell is based on these two half-reactions: Ox: Sn(s) → Sn2+(aq, 1.74 M) + 2 e- Red: ClO2(g, 0.120 atm) + e- → ClO2-(aq, 1.44 M) Calculate the cell potential at 25°C E Sn>Sn2+ = -.14 E ClO2 = .95

13. Math

Given These Equations x+y=9.0 .50x+.20y=3.90 Find the values of X and Y.

14. Physics

A compound microscope has a barrel whose length is 17.4 cm and an eyepiece whose focal length is 1.7 cm. The viewer has a near point located 25 cm from his eyes. What focal length must the objective have so the angular magnification of the microscope is

15. Chem TWO

Assuming 100% dissociation, calculate the freezing point and boiling point of 2.91 m K3PO4(aq).

16. Physics

A positive charge +q1 is located to the left of a negative charge -q2. On a line passing though the two charges, there are two places where the total potential is zero. The first place is between the charges and is 4.03 cm to the left of the negative

17. Physics

A converging lens (f = 14.6 cm) is located 39.0 cm to the left of a diverging lens (f = -4.57 cm). A postage stamp is placed 34.2 cm to the left of the converging lens. (a) Locate the final image of the stamp relative to the diverging lens. (b) Find the

18. Math

The mean of five numbers is 8. If one of the numbers is removed from the list, the mean becomes 7. what is the number that was removed. I could not figure this out.

19. Chemistry

For the reaction N2O4(g)=2NO2(g), the value of K at 25 degrees XCelsius is 7.19*10^-3. Calculate N2O4 at equilibrium when NO2 =2.20 *10^122 mol/L?

35. Differential Equation

Solve the following initial-value problem: y"+6y'+5y=0; y(0)=0. y'(0)=3

36. Finance 105

Corporate bonds issued by Johnson Corporation currently yield 9.5%. Municipal bonds of equal risk currently yield 5%. At what tax rate would an investor be indifferent between these two bonds? Round your answer to two decimal places.

37. Sociology

5. What type of sociologist stresses a commitment to positively impacting society through sociology? would it be applied 1)academic 2)applied 3)public 4)scientific

38. geometry

the sum of the measures of two acute angles is 110 degree.the suplement of the smaller anngle is 15 times the complement of the larger angle.what are the measures of the two angle?

39. college algebra

find the equation of a parabola that opens to the right with given vertex: (0,3) and passes through the point: (2,-1)

40. Computers

Your sister owns a small clothing store. During a conversation at a family dinner, she mentions her frustration with having to manually track and reorder high demand items. She would like an automated system but has a very small budget. Write a 4-5 page

41. Geometry

Triangle I has sides with lengths 2 2/3 cm, 4 1/2 cm and 3 cm. Triangle II has sides with lengths 8 cm, 13 1/2 cm and 9 cm. Are these triangles similar? If yes, what is the ratio of correspondence? A.)Yes;1/3 B.)No C.)Yes;2/3

42. Geometry

Triangle ΔABC has vertices A(2,5), B(8,1) and C(-2,-1) and is a right triangle. If the slope of AB is -2/3 and the slope of AC is 3/2, are the lines parallel, perpendicular or neither?

43. chemistry

acetic acid: 0.1 M 30ml hydrochloric acid 0.1 M 5 ml sodium hydroxide 0.1 M 15 ml Buffer + 5ml of: 1.91 ph ph (measured): 4:52 ph HOW DO I CALCULATE PH(CALCULATED)? AND ALSO IT SAYS SHOW YOUR CALCULATION FOR THE PH OF THE BUFFER BEFIRE AND AFTER THE

44. Criminal justice

Write a 700- to 1,050-word paper in which you describe the issues facing police departments in today’s society. · Include a description of how local, state, and federal law enforcement agencies currently interact with the U.S. Department of Homeland

45. Math

A batsman hits a cricket ball 'off his toes' towards a fieldsman who is 65 m away. The ball reaches a maximum height of 4.9 m and the horizontal compoenent of its velocity is 28 m/s. Find the constant speed with which the fieldsman must run forward,

46. Life orientation

In 10-15 lines critically discuss 5 ways in which the human or enviromental problem impacts on the community.

47. math

1. 5x - 3y + 2x - y = 2. 5r(3s) + 6r - 2rs = 3. a93b) + b(-3a) =

48. physic

In a friendly game of handball, you hit the ball essentially at ground level and send it toward the wall with a speed of 26m/s at an angle of 35^\circ above the horizontal.How high is the ball when it hits the wall?

49. Question #3

explain the transactional relationship between business and society

51. calculus?

I want a rectanglular pen with area = 50 square feet and to save on fencing I will build it next to the garage. How should I design it so I use the least amount of fence-only 3 sides will be needed next to the garage. How can I figure out that I have found

52. Math

Need help with domain and range how do you find the domain and range of y=x+8. after that one how do you find the domain and range of 7x+y=1

53. Organic Chemistry

a) What would be the product formed if diphenylacetylene were reacted with aqueous sulfuric acid? b) What would be the product formed if diphenylacetylene were reacted with two equivalents of HBR?

54. math

i am a 9 digit number.i have 5 in my hundred thousands place.the digit in my thousands plce is 3 more than the digit in my hundred thousands place.the digit in my hundred millions place is half the digit in my thousands place.the digit in my ten millions

asked by princess aimee f. santos

Which of the following are positive results of using new study techniques? A. Learning new material will become easier. B. You will retain more of what you learn. C. You gain power and responsibility over your learning. D. All of the above.

Which of the following are positive results of using new study techniques? A. Learning new material will become easier. B. You will retain more of what you learn. C. You gain power and responsibility over your learning. D. All of the above.

57. Math

A circle is measured by a straight line across its widest part. This line is the __________ of the circle. A. area B. radius C. volume D. diameter

58. Geometry

Earth has a radius of about 12,500 km. If the volume of the earth were to remain the same, but the shape of the earth was a cube, what would be the approximate length of one side of the cube? A.)12,500 km B.)15,240 km C.)20,150 km

59. Geometry

Find the geometric mean between 6x and 24x. A.)4 B.)12 C.)12x

At the end of the day, John is the ________ of all workers. A. tired B. tireder C. tiredest D. most tired I think it's choice C .

61. Math

what are 2 numbers when the estimated difference of 1001 and 999 is added to the estimated sum of 3846 and 525

62. Algebra

Find two binomials whose product is 15,600 and explain how you get it.

63. Math

Hi, could you please help with this question :) Find the speed and direction of a particle which, when projected from a point 15 m above the horizontal ground, just clears the top of a wall 26.25 m high and 30 m away. Thanks in advance

64. chemistry

how much NaOH which is 25% pure required to neutralise 100mL 10N HCl

65. Life orientation

Provide recommendations on how to address the 5 ways in which the human or enviromental problem impacts on the community.

66. physics

A body moves along a straight line from rest with an acceleration of 2m/s². Calculate the time taken by it to cover a distance of 100m.

67. Question #2

So therapist just listen to their patient about their problems they dealing with and they help them to resolve it or give advice to help them to resolve it. I'm curious.....

68. chem

no question - just thank you "drbob", you've answered a few of my questions.

69. chemistry

in a particular experiment, 150.0 g of ammonium chloride were reacted with 290.0 g of barium hydroxide octahydrate, producing 157.2 g of water 1. find the limiting reagent in this situation 2. calculate the theoretical yield of water 3. calculate the

70. English

How could I say this sentence in a different way but it will still have that same sense: 'In future, I will aim to develop my assertive skills when working with colleagues, in order to ensure that the well-being of patients is maintained'

71. Math

Find the absolute maximum and minimum of g(x) = (x^2 - 3)/ (x^2 + 1) on the interval [-1; 2]:

72. Stats

I ran this an an independent samples t-test. It is a t rest according to the professor, just want to make sure I have the right one. A researcher wanted to answer the following question: What is the difference in students' computer anxiety based on whether

Hey, I have here Clinical Protocols in front of me from one of the hospitals. I'm writing up an assignment and need to reference some parts of the protocol. The system that we use in college is Harvard Referencing system but I never referenced protocols

74. calculus?

Hello can u help? I need a solution to calculus problem I have $500.00 to spend on fencing for a garden. The fence for the street side costs$30.00 per foot and the other three sides cost \$10.00 per foot. what dimensions will give you a rectangle for the

75. Math

how do you find the domain and range of y=absolute value of x-9 then how would you find it for y=x^3+8 thank you

76. college algebra

write the equation of the hyperbola in standard form: x^2-4x-y^2+6y=9

77. Art Appreciation

Explain how Florence reflects the ideals of the dominant city-state and how some of the geographical, economical, social, and artistic forces shape this ideal. Use one example from Gardner’s Art through the Ages and one example from the Internet.

78. chemistry

the volume of a gas at 273 degree cels and 2 atm pressure is 5L. What would be its volume at 0 degree celsius and 1 atm pressure ?

Thanks Ms. Sue for your help :)

Sarah sets aside time every night to read some pages in her history book. She schedules a break into her study time. Why is this not an effective study plan? A. Her scheduled break is not long enough. B. The task is not concrete or specific enough. C. The

81. Math

is x-7y=2 a function

82. Algebra 1

Factor first, then solve the equation. 1. 3/x+1-1/x-2=1/x^2-x-2 2. 1/y^2-16-2/y+4=2/y-4

83. Grammar

Lately when I've been reading news articles and website blogs, I've been seeing some funny grammar that I don't remember learning about. It deals with commas for a list of items. Normally I thought you would write like this: I have potatoes, carrots, and

84. Math

What is the volume of a cylinder with the following dimensions: Radius 6ft Height 24ft A. 33.14 ft3 B. 2712.96 ft2 C. 2712.96 ft3 D. 33.14 ft2

85. Math

Thank you Bob :)

86. Math

Convert the mixed number, 1 3/4 , to a fraction. Reduce fraction if necessary. A. 4/12 B. 4/7 C. 7/4 D. 12/4

87. Math

Divide: 100/22 = A. 5.011 B. 4.545 C. 4.98 D. 4.345

88. INTRODUCTION TO HEALTH AND DISEASE

How do culture, spiritual beliefs, and customs related to health beliefs foster or prevent diseases and their treatment?

89. Math

The surface area of any shape is expressed in: A. square units. B. cubic units. C. feet and inches. D. length and width.

90. Math

The decimal number 0.75 means: A. there are seventy-five parts of a whole unit that has 100 parts. B. there are seven-and-a-half parts of a whole unit. C. that a whole unit consists of seventy-five parts. D. seventy-five tenths of a whole unit.

91. Chem 2

Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 12.5 g of biphenyl in 27.9 g of benzene?

92. Physics

suppose that the angle of incidence is 1 = 37.1°, the thickness of the pane is 4.17 mm, and the refractive index of the pane is n2 = 1.50. Find the amount (in mm) by which the emergent ray is displaced relative to the incident ray.

93. Geometry

x/(x + 9)=5/8. Find x. A.)12 B.)9 C.)15

94. OFFICE ORIENTATION

WHAT ARE THE CONTROL PROCEDURES FOR COMMUNICATIONS SECURITY OF AN OFFICE?

95. Physics

Sally Sue is atop a 10.0 m high platform where she will drop an apple straight down. On the ground below, and 20.0 m (horizontally) away, Betty Lou will shoot an arrow at the apple. If Betty's arrow has a release speed of 25.0 m/s, at what angle must she

96. Differential Equation

Find the general solution of t^2y"-3ty'+4y=0 on (0, infinity sign, given that Y1=t^2 is a solution

97. Differential Equation

Find the general solution of (D^2-3D+2)(D-5)^Dy=0. (Hint:Use the auxiliary equation)

98. Differential Equation

Find the general solution of y"+4y'-2y=0

99. Differential Equation

Find the general solution of y"-3y=8e^(3t)+4sint

100. Differential Equation

Determine if the following pair of functions is linearly independent or dependent on (-infinity sign, infinity sign): f(t) = e^(3x) and g(t)=xe^(3x)

101. math

if you have 5 meters of rope and you break off 1.41 meters, how much is left

102. math

Triangle ΔABC has vertices A(2,5), B(8,1) and C(-2,-1) and is a right triangle. If the slope of AB is -2/3 and the slope of AC is 3/2, are the lines parallel, perpendicular or neither?

103. algebra math

what are the 2 factors of (156+100)

104. chem

what is the total ionic equation for AlPO4(aq)+3NaOH(aq)=Al(OH)3(s)+ Na3PO4, I am not sure I am right.

105. Physics

a stone is thrown upward from the ground with a velocity of 80 m/s. how long will it take to reach a point 3 m above the ground on its way down?

106. Anthropology 101

I have and the I just want know if it is correct. 1. The American class system: (Points : 1) is a closed system. is an open system.X is mostly endogamous. is an illusion, because there are no classes. 2. A dowry is: (Points : 1) when, upon marriage, the

107. Question #1

Is Psychotherapist and Therapist is the same thing????

108. health and diseases

I need help on doing a powerpoint presentation about trichomoniasis

109. Pak. studies

Describe the activities of different industries of Pakistan in creating pollution?

110. Pak. studies

givea list of FATA and FANA?

111. Math

if a relation exists between x and y, then we say that x ____ y or that y ___x and we write x---->y a)depends on;corresponds to b)corresponds to; depends on c)depends on;depends on d)corresponds to; corresponds to

112. SCIENCE

DO YOU THINK ENOGH STEPS HAVE BEEN TAKEN TO REDUCE ERRORS IN MEDICAL ABBREVIATION USAGE?

113. RES/351

under what conditions would you recommend the following probability sample non–probability sample

The ideal study plan includes which of the following? A. An elaborate study environment. B. Quality preparation. C. Use of as much different intelligence as possible. D. Both A & C.

115. geometry

Two groups of students are asked to depict a picture of a semi-circular pizza. Group 1 uses a ruler to depict the base of the shape and completes the semi-circle with a pencil. Group 2 uses a ruler to make a line of 10 inches to depict the base of the

116. MAth

A rectangle is 15 inches long and 6 inches wide. What is the area of the rectangle?

117. statistic

age days in hospital 40 11 36 9 30 10 27 5 24 12 a. draw a scatter diagram (completed) b. does there appear to be a correlation between age and number days in the hospital? no Find the r value for this problem to verify your answer? R=.16 c what is the

118. math

complete each of the following:1.4 000=______=______tens 2.870 000=____ten thousands=______thousands 3.90 000 000=_____millions=______thousands 5. 5 600 000 000=_______hundred thousands=________hundreds

asked by princess aimee f. santos
119. Research and Writing

I am trying to write an internal memorandum and must analogize two cases first. I cannot get it straight in my head what the process it for making the analogy! HELP!!

120. Math

Tom has difficulty battling distractions while studying. Which of the following strategies would help him with this problem? A. Taking notes that keep him focused. B. Improving his study environment. C. Adding positive messages to his study area. D. Both B

122. math

is y2=6-x2 a function

123. Art

In the painting Adoration of the Kings by Gerard David, I have to decide where the linear perspective is leading toward and i think its leading toward the Madonna and Child ? But i want to make sure. Am i right?

124. college algebra

Find the standard form of the equation of an ellipse with center at (-2,1) with major axis length 10 along y axis and minor axis length 8 along the x axis

125. Math

Reduce the fraction 20/100. A. 4/20 B. 2/20 C. 1/5 D. 5

126. poetry

Could you please explain what this sonnet means? It is called March by Susie Harrison. The sonnet is below: With outstretched whirring wings of van-dyked jet, Two crows one day o'er house and pavement pass'd. Swift silhouettes limned 'gainst the blue, they

127. Algebra1

Square root 25 +4 times square root 75 +10 =

128. Geometry

What is the center and radius of the circle with the following equation: (x - 4)2 + (y + 3)2 = 100 A.)c=(2,0),r=1 B.)c=(4,-3),r=10 C.)c=(2,2),r=5

129. Geometry

What is the equation for the circle with its center at C(5,-2), and a radius with length 7? A.)(x - 5)2 + (y + 2)2 = 49 B.)(x - 1) - (y + 4) = 36 C.)y = 7x - 2

130. Geometry

To find the height of a tree, a man stands at point T. His height RT=6 ft. He stands 15 feet from point S and 25 feet from point U. What is the height of the tree, QU? A.)12 ft B.)15 ft C.)16 ft

131. chemistry

How do I calculate the initial concentraion of an acid?

132. communication

Can you explain how purpose, audience, tone, and content impact academic writing?

133. Basic Algebra

i need help with a question regarding angles the exterior angle theorem. it hase angles 140 8x+4 and 3x+4 but it wants me to find angle M

134. computers

computer literacy 103 question for dq week1 dq the future is now? pretty soon at least.

135. chemistry

Okay let me write it this way. I mixed 30 mL of 0.1 M Acetic Acid and 15 mL of 0.1 M Sodium Hydroxide and measured the pH. Then I added 5 mL of 0.1 M NaOH to this buffer and measured the pH. It's asking me: Show the calculations for the pH of the buffer

136. math

The queen asked her cook how many guests had attended a recent banquet. “I do not know, my lady” he said, “but every two guests shared a plate of fruit between them, every three used a bowl of broth among them, and every four shared a platter of