# Questions Asked onAugust 5, 2015

1. ## physics

A bicycle is rolling down a circular portion of a path; this portion of the path has a radius of 8.73 m. As the drawing illustrates, the angular displacement of the bicycle is θ = 0.979 rad. What is the angle (in radians) through which each bicycle wheel

2. ## math

ifasinx=bcosx=2ctanx/1-tan^2 x prove that(a^2-b^2)^2 =4c^2 (a^2+b^2

3. ## Maths Lit, Accounting, Economics, Business Studies

I am a grade 10 learner doing Maths Literacy, Accounting, Business Studies, Economics, Life Orientation, English and Afrikaans I want to know what Degree I can study in University and also to check what career path I would be able to do.

4. ## mathematical

Robin is 25 years younger than his father. After 10 years, their ages will be in the ratio 1:2 . Find their present ages.

5. ## Trigonometry

An airplane is sighted at the same time by two ground observers who are 2 miles apart and both directly west of the airplane. They report the angles of elevation as 11˚ and 20˚. How high is the airplane? Round to the nearest hundredth of a mile.

6. ## World History

Which of the following is NOT true about bias? Answer: a) Using both biased and non-biased resources in research will create bias results b) Bias can be identified by the facts that the Web site includes as well as the facts that are excluded c) In a

7. ## MATHS

the following is an AP 9,X,Y,Z,25 1.find the values of x,y,z.

8. ## alg1

solve for 8m^2 +20m=12 for m by factoring

9. ## math

A student had an average of exactly 84 marks after taking three tests. On the fourth test, he scored 96%. The average for all four tests is A. 84 B. 86 C. 87 D. 82

10. ## Math

The diagonals of a rectangle is 8m longer than it's shorter side. If the area is 60m.sqr., what are its dimentions? Show the solution.

11. ## MTH 156

When two gears are mashed the revolution per minutes (rpm) are inversely proportional to the number of teeth, as show below. In one machine the rpm ratio of the larger gear to the small gear is 4:7 The small gear has 216 teeth In second machine the larger

12. ## Math

The complement of the supplement of an obtuse angle is always: A) an acute angle B) an obtuse angle C) a straight angle D) a right angle Is it D?

13. ## ithala

Q1+3uc and Q2-9uc

14. ## Physics

The position of a particle is given by the expression x = 2.00 cos (6.00πt + π), where x is in meters and t is in seconds. (a) Determine the frequency. ______Hz (b) Determine period of the motion. ______s (c) Determine the amplitude of the motion.

15. ## moretlwe

describe a recent service delivery protest in your community or in the neighbourhood.

16. ## art

Creating artwork that showed scenes of everyday life was very different from what was normally painted in the late 1800s This change in style allowed the artist to be more

17. ## Criminal Justice/Cyber Crimes

The President’s Working Group on Unlawful Conduct on the Internet was created to evaluate the: A. prohibition of disclosure of confidential information. B. efficiency of data mining. C. reliability of packet sniffing. D. utility of education and

18. ## Math

The number of seconds in 2 hours equals the number of minutes in how many days?

19. ## Physics

A fully loaded elevator weighing 2000 lbs accelerates upward from rest, attaining its rated velocity of 20 fps upon reaching a height of 25 ft. Solve for the tension on the cable lifting the elevator. What is the minimum required power of the lifting motor

20. ## Kgothala secondary

Life oriatation

21. ## Kgothala secondary

Life oriatation, description of recent service delivery protest

22. ## mth 156

a company needs \$55,000 in 7 years for a new addition. To meet this goal, the company needs to deposit money in an acct today that pays 5% annual interest compounded quarterly. What amount should the company invest to total \$55,000 in 7 years? Thanks!

23. ## math

Each of the following is a factor of x^2 +3x-4 except A. x+4 B. x-1 C. x-4 D. 1

24. ## Enthalpy Change Calculations

Find the heat of reaction (ΔH) for each of the following chemical reactions and note whether each reaction is exothermic or endothermic. 1. H2O(l) -> H2O(g) This is what I have so far: H2(g) + ½ O2(g) -> H2O(l) ΔH = -286.0 kJ/mol H2(g) + ½ O2(g) ->

25. ## math

The cost C in dollars of having an electrician come to your house to do a repair job in h hours if he charges \$16 for coming to the house and \$30 for each hour.

27. ## Math

Mrs. Dana can buy a coat for \$187.00 cash or \$35.00 down or \$15.00 per month for 12 months. The charge for buying on the installment plan is: Also, can you explain what the installment plan is.

28. ## Math

A circular pizza of radius 8 is cut into 8 equal slices. What is the perimeter of one slice?

29. ## Math

A swimming pool 75 ft. long and 30 ft. wide is filled to an average depth of 6 ft. If 7.5 gal occupy 1 cu. ft. the number of gallons the pool contains is:

30. ## Math

How many pairs of parallel edges does a rectangular solid have?

31. ## algebra/ math

Solve the problem. Leave the answer in exponential notation. The expression 2^6 x64^t approximates the number of bacteria after t hours. After 1/2 hr, how many bacteria are those? is it 2^6..

32. ## Chemistry

If the speed of light is 186,000 miles / sec, how far does light travel in 8.0 minutes?

33. ## mathematics

A baseball team played 149 complete games last season. They had 31 fewer wins than losses. How many games did the team win?

34. ## Statistics

Suppose a multiple-choice test has 10 questions each with 5 choices. If a student guesses randomly. What is the probability that they get an B or better. ( they get at least a 80% on the exam) make sure to declare a binomial random variable and show all

35. ## Physics

Calulate the acceleration of a 300,000kg jet on take when the thrust is equal to 120,000N. I used a = f/m to get 0.4m/s/s Tricky part. How long a runway is required for the plane to take off at a speed of 300km/h? Help?

36. ## Chemistry

If there are 5,280 ft=1.00 mile ,how many miles are in 50,000 ft?

37. ## Chemistry

Determine the mass of PbSO4 produced when 10mL of 0.2M CuSO4 reacts with 10mL of 0.2M Pb(NO3)2? Balance the equation CuSO4 + Pb(NO3)2 → PbSO4 + Cu(NO3)2 Find the number of moles for CuSO4 c=n/v n=c × v n=0.2 × 0.01 n=0.002 mol Since it is a 1:1 ratio,

39. ## math

A baseball team played 149 complete games last season. They had 31 fewer wins than losses. How many games did the team win?

40. ## Calculus

Can someone show how to solve this problem Find the equation of the line normal to the graph of y = x^2 + 1 that passes through the point (1, 2). Thanks!

41. ## c++

MACHINE PROBLEMS #2 1. Create a C++ program that would input the following data about a merchandise: Product Number, Item Description, Original Price, Estimated Years of used of a Merchandise, Salvage Value of Merchandise. Compute the Depreciation and Rate

42. ## Physics

A particle with a mass of 0.660 kg is attached to a horizontal spring with a force constant of 23.76 N/m. At the moment t = 0, the particle has its maximum speed of 15 m/s and is moving to the left. (Assume that the positive direction is to the right.) (a)

43. ## FINANCE AND BANK

Last year Angela used her 60% margin account and purchased 100 shares of stock at a price of \$33 a share. Today she sold this stock for \$36 a share. Angela paid a total of \$70 in margin interest for the year. Ignoring transaction costs, what rate of return

44. ## Vocabulary

"The Court and its area of control, its jurisdiction, are established in Article III of the Constitution." The word "jurisdiction" means A) the limits within which authority may be exercised B) personnel C) branches throughout the country D) special

45. ## math

Solve using suitable property [name the property] 1]428 x[-23]+[-428]x(-223) 2] 105 x(-37)

46. ## Math

If there are 100 centimeters = 1 meter ,how many centimeters are in 1.25 m?

47. ## Calculus

Can someone show how to solve this problem Find the equation of the tangent line to the curve given by, x=3e^t y=5e^-t at the point where t=0 Thanks!

48. ## Cactus middle school

How do I get the equation of a word problem that needs the average number of miles per gallon

49. ## computer(internet)

in my computer all sites are available but facebook site is not available when i tries to open facebook "this webpage is not available"comes i have window xp and i use modem for internet connection plzzzzzzzzz help me?????????????????????????

50. ## socialology

Does functionalism or conflict theory do a better job in discussing religion and the effects of religion today?

51. ## chemistry

What is the pH of a buffer solution if you have 250 ml of a 1.56M Acetic Acid and you added 26.56 grams of sodium acetate (NaCH3CO2)? What is the new pH if you now add 1gram of NaOH to the buffer solution?

52. ## statistic

If a test has a mean score of 75, with a standard deviation of 11, what % of students scored an A (90 or higher) ?

53. ## Chemistry

What data do you need to determine whether the following reaction is spontaneous or not? 4Fe(s) + O2(g) ----> 2Fe2O2(s) Would it be temperature, delta H and delta S?

54. ## Vocabulary

"Higher forms of animal life have a variety of systems within their bodies that are used for special functions: a circulatory system for he blood; the food supplier; a digestive system for converting food into energy and body tissue; and others. The

55. ## English

Costa's theory on racial stereotyping in animation

56. ## algebra

+write an expession for the volume of a rectangular prism if the length is 2 feet longer than some x amount the width is 6 feet longer than x and the height is x feet

57. ## Math

A piece of copper of mass 0.55 kg is heated from 57oC to 100oC .What is the increase in the internal energy of the copper

58. ## Math

If there are 100 centimeters = 1 meter ,how many centimeters are in 1.25 m?

59. ## science

calculate the osmotic pressure at 18.5 degree celcuis of a suspension containing 30g/L of solid particles. each particle weighs 10^-9g.

60. ## Precalculus (Logarithmic)

Express each of the given question in logarithmic form. i) e^2x = 15 ii) e^x-4 = 1/2 iii) a^x+1 = 5 Solutions But am not sure if this is the way it should be done. i) e^2x = 15 In (15) = 2x ii) e^x-4 = 1/2 In (1/2) = x-4 iii) a^x+1 = 5 Log 5 with base "a"

61. ## Math

If there are 12 inches = 1 foot,how many inches are in 8.2 miles

62. ## math

cindy can type 50 words a minute. At this rate, how many words can she type in a half hour?

63. ## English

What is been written wrong in the following sentence " i am please asking for airtime please "

64. ## Math

Crew receives a check for \$5100. The journeyman makes 300% of what the apprentice makes and the master makes 150% of what the journeyman makes. How much do they each make? Thanks!

65. ## mth

A faculty lost 1/5 of its faculty in the reduction. If 88 faculty were left, how many faculty were there originally? Thanks!

66. ## college. physics and chemistry and mathematics

An element crystalline in face centred cubic lattice. CCalculate the length of the side of the unit cell if the radius of atom is200pm

67. ## Art

When an idea is presented in a way that is original, it is considered to be

68. ## Algebra

If Patrick walked one mile in an hour and a half and Rodney walked the same mile in an hour, how much faster was Rodney walking than Patrick?

69. ## MTH 156

2^6 * 2^7 multiply and simplify and then write the answer in exponential notation. Thanks!

70. ## Math help

Convert the repeating decimal to a/b form, where a,b are integers and b =0(there is a slash through the equal sign) 2.36(there is a line over .36)'

71. ## MTH 156

2^6 * 2^7 multiply and simplify and then write the answer in exponential notation. I know the answer is 8,192 but I cannot figure out how to write that in exponential notation. Thanks for the help.

72. ## art

Animation has changed from each scene cell being drawn by hand to entire worlds being created on a computer. This is a goo example of

73. ## Benue State University Makurdi

In attempt to increase revenue and profits, a firm is considering a 4 percent increase in price and an 11 percent increase in advertising. If the price elasticity of demand is -1.5 and the advertising elasticity of demand is +0.6 would you expect an

74. ## Physical Science

Four forces of 10N,8N,6N and 4N act at the same point of an object on bearing 0 degrees,90 degrees,135 degrees and 270 degrees respectively

75. ## maths

resolve the partial fraction: x^3+6/x^2x+6.plz explain thanks

76. ## Social studies

Write three cultures that should be discarded

77. ## English

Im writting an essay titled I SALUTE MOTHERS,,,my points in the mind map are LOVE. MOTHERHOOD and ROLE MODEL please help me with the introduction,I started off with'Mothers are the strong hearted human beings'

78. ## Logical Reasoning

All of the bikes in the shed are red. Some of the bikes in the garage are blue. All of the bikes locked to the post are green. Mike's bike is red, and Lynn's bike is green. Based only on the statements above, which of the following MUST be true? A) Mike's

79. ## janulal

two mass 10 kg and 20 kg are connected with a massless string. a force pf 200 N is acting on the mass 20 kg . the acceleration of 10 kg is 12m/s^2 then the acceleration of 20 kg mass is

80. ## maths

resolve the partial fraction:x^3+6/x^2(x+3).with explanations thanks

81. ## English

My essay title..'I salute mothers'. In my mind map i have Love,Role model and motherhood...Paragraph1...Mothers are the strong hearted human beings.People that randomly live their lives like other people but have a special way of prioritising.

82. ## physics

Q: A block A of mass 0.5 kg can slide on a frictionless incline of angle 30o and length 0.8 m kept inside an elevator going up with uniform velocity 2m/s. Find the time taken by the block to slide down the length of the incline if it is released from the

83. ## mathematics

Jake has a cable that is 55.3 feet long. He wants to cut it into pieces that are 7.9 feet long. How many 7.9 foot pieces will he get from the cable?

84. ## Statistics

The research hypothesis is a vitally important element of any quantitative research study. This Discussion provides an opportunity for you to develop your own testable hypothesis based on the data set for the Final Project. To prepare for this Discussion,

85. ## Mathematics

Ray's gross pay is \$320.09 a week. &46 is witheld for federal income tax, \$24.04 for FICAtax, and \$11.20 for other deductions. Find his net pay?

86. ## math

the town mayor plans to build a pathway for the rectangular plaza whose length is 20 m longer than the width. If the pathway is 20 m shorter than twice the width. what is the length of the pathway

87. ## Vocabulary

"In a large metropolitan airport, an air terminal at the edge of a major city, it is not unusual to have many landings and take-offs during a 24-hour period." The word "metropolitan" in the line above most nearly means A) international and domestic B)

88. ## Vocabulary

"The network of capillaries, veins, and arteries make up the intricate routes that the blood travels through in its continuous journey in the body." The word "routes" means A) circuit B) stations C) vessels D) organs Is it C?

89. ## Mathematics

An insurances fund invests \$70,600 in real estate and earns 14% per year on the investment. How much money is earned per year? .tricky

90. ## Fundamentals of Math

An outlet store had monthly sales of \$51,000 and spent 20% of it on promotions. How much was spend on promotions?

91. ## Chemistry(Titration)

Why is methyl orange indicator used instead of phenolpthalein when determing calcium content in a chalk by back titration

92. ## math

Which of the following is not a true fact about angles? A) The measure of an angle depends on the amount of rotation. B) Angles depend on the length of the rays that form the angle. C) All right angles are equal in measure. D) All straight angles are equal

93. ## math

Find the simple interest and the final value of the deposit that earns the given rate for the indicated length of time. Round your answers to the nearest cent. \$8439 earning 8% for 1.4 years ?

94. ## fundamentals math

Last year, Maria earned \$312 per week. This year, her salary increased to \$343 per week. What is the percent of increase?