bryan

Newest questions and responses by bryan
1. Math

Determine all possible values of the integer m such that the median and mean of the five integers 3, 6, 9, 11 and m are the same.

2. analytic geometry

The line L with equation y=mx+n passes through the point (1,1) and is perpendicular to x+3y=1. Find the value of n.

3. Math

In a class, 2/5 of the boys wear glasses and 1/3 of the girls wear glasses. What fraction of the class wear glasses?

4. Calculus

Which are true about the differential equation dy/dx = 2x(4-y) I.will have a slope field with negative slopes in quadrant I II.will have a slope field with positive slopes in all quadrants III.will produce a slope field with columns of parallel tangents

5. math

jenny bought scrapbooking supplies for 123.00 she paid 8.61 in sales tax

6. Economics

Consider the following data. The money supply is \$3 trillion, the price level equals 4, the real GDP is \$4 trillion in the base-year dollars

7. Math

Kevin mowed 6 lawns in 8 hours. What was his rate of mowing in hours per lawn?

8. maths

If the coordinates of the midpoint of the line segment with end points (a, 4) and (3, b) are (5, -2), find the values of a and b.

9. Math

Suppose that P(x) is a linear polynomial with P(6)-P(2)=12. What is P(12)-P(2)?

10. Math

The following set of data is arranged from lowest to highest: 2, 3, 3, 4, a, b, 6, 6, 9, 12. What are the values of a and b that will make the median equal to 5 and mode equal to 6?

If a

12. Math

If P(x) is a cubic polynomial with P(1)=1, P(2)=2, P(3)=3, P(4)=5, find P(6).

13. Math

The 4 distinct zeros of p(x)=x^4-Ax^2+255 have absolute values which are prime. Find A.

14. maths

Paul, Kate and Sarah's mother left a bowl of jellybeans on their kitchen counter. Paul took one-third of the jellybeans, but then threw back 4 because he didn't like the black ones. Sarah ate 6 jellybeans and then took one-quater of what remained. Kate

15. Physics

In two separate experiments, a sample of helium gas is taken from the same initial state to the same final state, along two separates paths on a P-V diagram. Path a has two parts: first an isochor and second isobar. Path b is an isotherm. Determine the

16. Geometry

Quadrilateral ABCD is inscribed in a circle. Find the length of its shorter diagonal if AB=12, CD=18, arc BC=120, and arc AD =60°.

17. Trigonometry

In triangle XYZ, XZ=6, ZX=7, and XY=8, find (sinY+sinZ)/sinX.

18. Math

In a class, the probability that a randomly chosen student likes dogs is 0.72, that a student likes cats is 0.54, and that a student likes neither is 0.11. Find the probability that a student likes both dogs and cats.

19. Math

In a company, the men who do not wear glasses are thrice as many as the men who do, while the women who do not wear glasses are ten more than the women who do. The probability that an employee wears glasses is 3/10. If selected employee wears glasses, the

20. Math

Suppose a boat has to make a round trip up and down a river. The trip up takes 1 hour and is with the current. The trip back takes 6 hours. Suppose the round trip is a total of 34 miles, and that the boat's speed and the speed of the current are constant.

21. Barretto national h.s.

What is the % by mass of 2.5 of salt is dissolve in 250g of water?

The second moment of area of a rectangle through its centroid is given by: bL3/12 Using the approximation for binomial series valid for small x (+ve or –ve): (1+x)^n=1+nx/1!+(n(n-1) x^2)/2!+⋯ 1+nx Determine the approximate change in the second moment

The exponential function can be represented as an infinity power series as follows. e^x=1 + x/1! + x^2/2! + x^3/3!+⋯,-∞

24. MATHS

A garden is 50 meters wide and 120 meters long. There is a pathway that runs along the perimeter inside the garden. If the area of the pathway is half of the area of the garden, then the width of the pathway is ....? meters. Please help! area of the garden

25. Math

Brian is baking cookies for Zachary's birthday party if an Bryan uses 1 1/4 cups of flour for every 10 cookies if Brian needs to make 50 cookies and he have 4 cups of flour how much more flower Brian need to finish baking

26. Statistics

A bin of 35 manufactured parts contains 6 defective parts and 29 non-defective parts. A sample of size 5 parts is selected from 35 parts. Selected parts are not replaced. How many different samples are there of size five that contain exactly 2 defective

27. Math

Carl had a part of a pizza. He gave 1/6 of a pizza to Susan. What part of a pizza did Carl have at first? Use the variable p.

28. Language Arts

(Use the passage to answer the question.) 8. Read lines 5 – 9 from “The Olympic Swimmer.” Swimmers swivel, splash, and kick Back and forth in a clear, blue pool; Like fish at play in Neptune’s sea. Swimming relaxed, and calm, and free. These stars,

29. Pre Algebra Review

Thirty-five students belong to the science club. This 1/4 the number in the 5 sections of the eighth grade. How many students are in the eight grade? How many in each section if each section has the same number of students?

30. Algebra

The sum of 2 numbers is 40, the smaller no. Is 6 less than the larger no. Find the numbers w/ solutions. Thanks

31. Algebra

Find the pattern and fill in the missing entries. In (x) out (y) 23 2 8 -2 -4 8 26 0 302 1.5 Rule:

32. Algebra

(8.8 × 10^-5)^-5

33. science

The atomic number of gold is 79 how many neutrons are there in an atom of gold that has atomic mass of 197 amu how you got your answer

34. Camestry

Calculate the mass of 0.250 L of ethyl acetate , if the density of ethyl acetate is 0.90g / ml .

35. physics

a 50 kg crate is at rest on a level surface the coefficients of friction are 0.3 and 0.4,what is the normal force acting on the crate, a man begins pushing horizontally on the crate how much force must the man exert to start the crate moving, how much

36. physics

a greyhound is capable of running at 40 mph how many meters could the greyhound run in 3 minutes at this speed, how many seconds how many seconds would it take the greyhound to run 1 km at this speed

37. physics

a boy pulls a 15 kg over level ground by a rope with a force of 50 newtons at 30 degrees above the horizontal, the coefficients of friction between the box and the ground are 0.3 and 0.4, calculate the normal force exerted on the box to the ground,

38. physics

a 75kg person is standing on a scale in an elevator, the scale gives a readout in newtons(you have to use a free body diagram)determine the reading on the scale in newtons in each of the following situations, when the elevator is not moving, the elevator

39. physics

a 5kg ball is suspended by two strings one horizontally attached to a wall and one attached to the ceiling at a 35 degree angle, determine the tension in the slanted string, determine the tension in the horizontal string (you have to use a free body

40. maths

A rectangular garden is to be constructed using 100 metres of fencing but using a straight wall as one side.the rectangle is x metres. Find the lenght of the garden in terms if x?

41. Education technology

Which of the following is an effect of intellectual property theft? Record companies lose money because people download songs for free online Book companies lose money because of used bookstores Book companies lose money because people download books

42. Education technology

1. which of the following is an example of tangible property? A method for creating ice cream that you friend thought of An idea for an invention that your dad mentioned briefly but did not write down•• Song lyrics printed in a songbook A quicker

43. Education technology

Read the following scenario and determine the willing participant. Eboni’s friend, Margo, was eager to tell her about the new friend she met online. She began chatting with Aaron on a social networking website and found out that they had a lot in common.

44. Education technology

Which of the following does not qualify as intellectual property? a)a poem that you write b)a CD your friend bought that you borrowed c)a story that you wrote based on a book you read d)an idea that you cam up with•• Correct me

45. Education technology

Which of the following helps prevent your computer from becoming infected with malicious code? Open all emails with attachments that aré from stanger Is sure your computer gets open up and the dust cleaned out of its regularly. install and regularly run

46. Education technology

Which of the following is a sign that your computer may have been infected with malicious code? Your computer runs faster than normal The page you open are not distorted Your computer restarts on its own and then runs properly •• Your computer locks up

47. Education technology

Which of the following is not an example of malicious code? A. Trojan horse B. worm C. virus D. spy gear ••

48. Education education

Which of the following is not a quality of a successful AUP? State acceptable use for school computers Covers network etiquette Contains a code of conduct for Internet users Requires no signature•• Correct me

49. Education technology

Which of the following rules is most likely to be used in an A.U.P.? A. Communication should be civil and respectful of one another •• B. Private files can be viewed without permission from the owner C. Proper credit to the source is not necessary if

50. Education technology

Which of the following is a benefit dead education simulation do not provide? They use real objects that can be physically touched They allow you to manipulate objects by turning them around vertically•• They can use 3-D movement and objects They can

51. Education technology

how can simulations be used in education? 1. They are allowed people to touch a real item throug the computer. They provide a realistic experience that students many not get in real life.•• They substitute games for learning. They make games real.

52. Algebra 2

How many mins/max are there in the equation x^3-4x^2-7x+10? I said that there are 2 because if it is to the 3rd exponent, it increases then decreases then increases again when graphed. Is my statement correct? Thank You

53. Algebra 2

Q: What is the value of b in the equation 4^2b-3 = 8^1-b? My Work/Answer: Set each sides base to 2 2^2(2b-3) = 2^3(1-b) cancelled bases out solved for b my answer - 9/7 Is my work and answer correct Thank You

54. Algebra 2

Q: (x^2-9/x^2-5x)(5x-x^2/x^2-x-12)(x^2-8x+16/x-4) my answer: -1 How i solved: crossed multiplied 2 of the 3 sets of fractions the multiplied the answer to the remaining one and simplified. Can you check that my work is correct?

55. math

Ore from least to greatest 6/2,-7/3,5/4,-1/3,4/3

56. Algebra 2

Q: Write a quadratic equation with integral coefficients whose roots are -6+i and -6-i My Answer: x^2+12x+37 (first) sum=-12 product=37 (then) write equation using formula x^2-(sum)x+product Is my work and answer correct?

57. spanish

Ahora yo ___ en Panama. Mi hermana y yo ___ altas,rubias y delgadas.

58. Physics

1. An arrow is shot from the top of a 50 m castle wall at 18 m/s horizontal to the ground. How far from the base of the castle wall will it land? 2. A cannon with a muzzle velocity of 45m/s is shot a various angles to get maximum distance. The general

59. Physics

Do the following calculations for a 1150 kg car. a. How much work must be done on the car to accelerate it from 0 to 60 km/h. **** Hi I am looking for advice on my questions below. This is my attempt at answering them.. Am i at least on the right track?

60. Fluid Mechanics

Air at 70 F flows in a .8 inch diameter horizontal pipe. The density of the air is constant at .077 lbm/ft3. Assuming fully-developed flow determine the maximum pressure drop over a 30 ft section of pipe if the flow is laminar. Ans. = .00288psi

61. chemistry

5.What is the major difference between the two-dimensional and three- dimensional models of ethane and methane? When might you choose to use a two-dimensional model rather than a three-dimensional model when representing one of the molecules?

62. MATHS

A wooden crate half full of pineapples has a mass of 14kg. The same crate one third full of pineapples has a mass of 12 kg. What is the mass of the empty crate? Please help, many thanks.

63. MATHS

If I paid 12z for something and received 27s in change, how much did the item cost, given that 5s = y and 10y = z ?

64. College Physics

A snowball off a roof that slopes downward at an angle of 40degrees. The edge of the roof is 14 m above the ground and the snowball has a speed of 8 m/s as it rolls off the edge of the roof. If a 1.8 m tall man is standing 4 m from the top of the edge of

65. Physics

A snowball off a roof that slopes downward at an angle of 40degrees. The edge of the roof is 14 m above the ground and the snowball has a speed of 8 m/s as it rolls off the edge of the roof. If a 1.8 m tall man is standing 4 m from the top of the edge of

Does 5-(-3)^2 -6 equal 5-(-9)-6 equal 5+9-6 equal 14-6 =8 ?????? Thanks!

67. Maths

Noors knows that David, Adam, Jane and Luisa are brothers and sisters. However, she does not know the order in which they were born. There are 24 different combinations of their birth order. How many more different combinations would there be if there were

68. MATHS

A rectangular prism has dimension of length 8cm, height 9cm and width 6cm. The prism expanded at a constant rate until the width was 8cm. If the other dimension also expanded at the same constant rate, find the volume of the rectangular prism after its

69. Physical Geology

How do you find the numerical age and can you provide an example.

70. satistics

Assume that the math SAT scores are normally distributed with a mean of 500 and a standard deviation of 100. If you score 560 on this exam, what percentage of those taking the test scored below you? semperfi

71. Math

tom is scheduling his classes for next quarter. he wants to take three classes, and has the following options: spanish at 9, 10, or 11; music at 9 or 11; math at 10 or 12. list possible schedules he would choose

72. dice probability (math)

if a pair of fair dice is rolled, what is the probability that we roll a total of five if we are given that the total is less than nine?

73. Math

it cost \$2 to buy a raffle ticket. if there are 500 tickets sold, and there is one first prize of \$250, three second prizes of \$100, and five third prizes of \$50, what is the expected value of this raffle?

74. Math

A circle is divided into 18 equal parts.How many degrees is the angle for each part? How many degrees is the angle for 5 parts into ?

75. Math

Luka is eating crackers. Each serving has 1.6 grams of fat. She ate 0.75 serving of crackers at lunch. She is now eating 1.5 servings of crackers as a snack. How many grams of fat did Luka eat all together? Explain how you solved the problem

76. MATHS

Three fair coins are tossed at the same time. What is the probability that one of the coins will show heads and other two will show tails?

77. Statics

I have a structure that is constructed of circular rod that has a mass of 7 kg per meter of length. I must determine the moment Mo about O caused by the weight of the structure. From the origin (O), the structure is 2m tall (z direction), branches outward

78. MATHS

Three fair coins are tossed at the same time. What is the probability that one of the coins will show heads and other two will show tails?

79. Physics

Assume the length of an organ pipe is L=24cm. You have excited the wave in the tube, and you observe that it has displacement nodes at 4cm, 12cm, and 20cm measured from one end of the pipe. In which harmonic, n, is the air in the pipe oscillating? What is

80. Physics

You snap your fingers at the open end of a 1 meter long tube that is closed at the other end. With a microphone at the open end, you determine that it takes 5.8msec between the time you snap your fingers and the echo from the closed end is detected. Based

81. Statics

A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 100 lbs and a small 24-lb spring dynamometer B. He discovers that when he exerts a pull on the rope so that B registers 22 lb, the scale A reads

82. Statics

A former student of mechanics wishes to weigh himself but has access only to a scale A with capacity limited to 100 lbs and a small 24-lb spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that B registers 22

83. criminal justice

How does a warden address ethical issues between the correctional officers and the inmates?

84. Physics, Electricity and Magnetism, Sciences

Two small pith balls, each of mass m = 17.4 g, are suspended from the ceiling of the physics lab by 1.2 m long fine strings and are not moving. If the angle which each string makes with the vertical is = 17.9°, and the charges on the two balls are equal,

85. Physics

A 49-N force is applied perpendicular to the portion BC of the bent bar. Determine the moment of P about point B and about point A. The image shows a bar that is straight from point A to B but then bends at a 42 degree angle to the left from point B to

86. Accounting

What is the closing entry to allocate a net income of \$48,000 to Sara, Ellen, and Mary? Respective capital balances are \$30,000, \$40,000, and \$30,000. No agreement was made for division of income. A. Debit Income Summary \$48,000; credit Sara’s Capital

87. chemistry

what will be the pH of a solution NaOH with the concentration 2,2.10mol

88. Algebra II

Ravi is going to rent a truck for one day. There are two companies he can choose from, and they have the following prices. Company A charges \$75 and allows unlimited mileage. Company B has an initial fee of \$55 and charges an additional \$0.80 for every

89. Algebra II

Suppose that an object is dropped from a height of h meters and hits the ground with a velocity of v meters per second. Then v= sqrt19.6h. If an object hits the ground with a velocity of 24.2 meters per second, from what height was it dropped? Carry your

90. Maths

In covering distance, the speeds of A & B are in the ratio of 3:4.A takes 30min more than B to reach the destination. Find time taken by A to reach the destination?

91. Chemistry

Three people weigh on a standard mass of 2.00 g on the same balance. Each person obtains a reading of 7.32 for the mass of the standard. These results imply that the balance that was used is ___________. a) neither accurate nor precise b) accurate c)

92. Math probability - HELP

A bag contains 3 red, 5 yellow, 2 green and 6 blue marbles. If one marble is chosen at random, replaced, and then a second marble is chosen at random, find the probability of obtaining 2 marbles of different colors.

93. Math

A bag contains 3 red, 5 yellow, 2 green and 6 blue marbles. If one marble is chosen at random, replaced, and then a second marble is chosen at random, find the probability of obtaining 2 marbles of different colors.

Alan, Bill and Carl shared \$372. After Alan spend 2/ 5 of his share, Bill spent 1 /2 of his share and Carl spent 1/3 of his share, the boys found they had the same amount of money left. (a) What is the ratio of Alan's share to Bill's share to Carl's share?

95. maths- year 5

If the students were given 80cm square of wooden board to make a box, what is the largest cube they can make with the board?

96. maths

There are a total of 50 ducks and goats in a farm. They have 154 legs altogether. How many ducks are there?

97. math

lmagine an equilateral triangle and a square. The triangle has sides of 10 m and the square has sides of 15 m. One ant walks completely round the triangle twice and a beetle which walks two and a half times as fast starts walking at the same time around

98. MATH

7/10 of Delia's money is equal to 1/5 of Sarah's money. They have \$225 altogether How much does Delia have?